* [PATCH 0/5] mm, highmem: kmap_atomic rework -v3
@ 2010-09-18 15:53 ` Peter Zijlstra
0 siblings, 0 replies; 24+ messages in thread
From: Peter Zijlstra @ 2010-09-18 15:53 UTC (permalink / raw)
To: Linus Torvalds
Cc: Andrew Morton, Ingo Molnar, Thomas Gleixner, H. Peter Anvin,
Russell King, David Howells, Ralf Baechle, David Miller,
Chris Metcalf, Paul Mackerras, Benjamin Herrenschmidt,
Hugh Dickins, linux-kernel, linux-mm, linux-arch, Peter Zijlstra
Next version of the kmap_atomic rework using Andrew's fancy CPP trickery to
avoid having to convert the whole tree at once.
This is compile tested for i386-allmodconfig, frv, mips-sb1250-swarm,
powerpc-ppc6xx_defconfig, sparc32_defconfig, arm-omap3 (all with
HIGHEM=y).
Tested on Tile by Chris Metcalf.
Boot-tested with: i386-defconfig.
Not tested with:
- nm10300, the arch doesn't build with highmem to begin with
^ permalink raw reply [flat|nested] 24+ messages in thread
* [PATCH 0/5] mm, highmem: kmap_atomic rework -v3
@ 2010-09-18 15:53 ` Peter Zijlstra
0 siblings, 0 replies; 24+ messages in thread
From: Peter Zijlstra @ 2010-09-18 15:53 UTC (permalink / raw)
To: Linus Torvalds
Cc: Andrew Morton, Ingo Molnar, Thomas Gleixner, H. Peter Anvin,
Russell King, David Howells, Ralf Baechle, David Miller,
Chris Metcalf, Paul Mackerras, Benjamin Herrenschmidt,
Hugh Dickins, linux-kernel, linux-mm, linux-arch, Peter Zijlstra
Next version of the kmap_atomic rework using Andrew's fancy CPP trickery to
avoid having to convert the whole tree at once.
This is compile tested for i386-allmodconfig, frv, mips-sb1250-swarm,
powerpc-ppc6xx_defconfig, sparc32_defconfig, arm-omap3 (all with
HIGHEM=y).
Tested on Tile by Chris Metcalf.
Boot-tested with: i386-defconfig.
Not tested with:
- nm10300, the arch doesn't build with highmem to begin with
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
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see: http://www.linux-mm.org/ .
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^ permalink raw reply [flat|nested] 24+ messages in thread
* [PATCH 1/5] mm: strictly nested kmap_atomic
2010-09-18 15:53 ` Peter Zijlstra
@ 2010-09-18 15:53 ` Peter Zijlstra
-1 siblings, 0 replies; 24+ messages in thread
From: Peter Zijlstra @ 2010-09-18 15:53 UTC (permalink / raw)
To: Linus Torvalds
Cc: Andrew Morton, Ingo Molnar, Thomas Gleixner, H. Peter Anvin,
Russell King, David Howells, Ralf Baechle, David Miller,
Chris Metcalf, Paul Mackerras, Benjamin Herrenschmidt,
Hugh Dickins, linux-kernel, linux-mm, linux-arch, Peter Zijlstra
[-- Attachment #1: kmap-2.patch --]
[-- Type: text/plain, Size: 3781 bytes --]
Ensure kmap_atomic usage is strictly nested
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Reviewed-by: Rik van Riel <riel@redhat.com>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
---
crypto/async_tx/async_memcpy.c | 2 +-
crypto/blkcipher.c | 2 +-
drivers/block/loop.c | 4 ++--
include/linux/highmem.h | 4 ++--
kernel/power/snapshot.c | 4 ++--
5 files changed, 8 insertions(+), 8 deletions(-)
Index: linux-2.6/crypto/async_tx/async_memcpy.c
===================================================================
--- linux-2.6.orig/crypto/async_tx/async_memcpy.c
+++ linux-2.6/crypto/async_tx/async_memcpy.c
@@ -83,8 +83,8 @@ async_memcpy(struct page *dest, struct p
memcpy(dest_buf, src_buf, len);
- kunmap_atomic(dest_buf, KM_USER0);
kunmap_atomic(src_buf, KM_USER1);
+ kunmap_atomic(dest_buf, KM_USER0);
async_tx_sync_epilog(submit);
}
Index: linux-2.6/crypto/blkcipher.c
===================================================================
--- linux-2.6.orig/crypto/blkcipher.c
+++ linux-2.6/crypto/blkcipher.c
@@ -89,9 +89,9 @@ static inline unsigned int blkcipher_don
memcpy(walk->dst.virt.addr, walk->page, n);
blkcipher_unmap_dst(walk);
} else if (!(walk->flags & BLKCIPHER_WALK_PHYS)) {
- blkcipher_unmap_src(walk);
if (walk->flags & BLKCIPHER_WALK_DIFF)
blkcipher_unmap_dst(walk);
+ blkcipher_unmap_src(walk);
}
scatterwalk_advance(&walk->in, n);
Index: linux-2.6/drivers/block/loop.c
===================================================================
--- linux-2.6.orig/drivers/block/loop.c
+++ linux-2.6/drivers/block/loop.c
@@ -99,8 +99,8 @@ static int transfer_none(struct loop_dev
else
memcpy(raw_buf, loop_buf, size);
- kunmap_atomic(raw_buf, KM_USER0);
kunmap_atomic(loop_buf, KM_USER1);
+ kunmap_atomic(raw_buf, KM_USER0);
cond_resched();
return 0;
}
@@ -128,8 +128,8 @@ static int transfer_xor(struct loop_devi
for (i = 0; i < size; i++)
*out++ = *in++ ^ key[(i & 511) % keysize];
- kunmap_atomic(raw_buf, KM_USER0);
kunmap_atomic(loop_buf, KM_USER1);
+ kunmap_atomic(raw_buf, KM_USER0);
cond_resched();
return 0;
}
Index: linux-2.6/include/linux/highmem.h
===================================================================
--- linux-2.6.orig/include/linux/highmem.h
+++ linux-2.6/include/linux/highmem.h
@@ -191,8 +191,8 @@ static inline void copy_user_highpage(st
vfrom = kmap_atomic(from, KM_USER0);
vto = kmap_atomic(to, KM_USER1);
copy_user_page(vto, vfrom, vaddr, to);
- kunmap_atomic(vfrom, KM_USER0);
kunmap_atomic(vto, KM_USER1);
+ kunmap_atomic(vfrom, KM_USER0);
}
#endif
@@ -204,8 +204,8 @@ static inline void copy_highpage(struct
vfrom = kmap_atomic(from, KM_USER0);
vto = kmap_atomic(to, KM_USER1);
copy_page(vto, vfrom);
- kunmap_atomic(vfrom, KM_USER0);
kunmap_atomic(vto, KM_USER1);
+ kunmap_atomic(vfrom, KM_USER0);
}
#endif /* _LINUX_HIGHMEM_H */
Index: linux-2.6/kernel/power/snapshot.c
===================================================================
--- linux-2.6.orig/kernel/power/snapshot.c
+++ linux-2.6/kernel/power/snapshot.c
@@ -978,8 +978,8 @@ static void copy_data_page(unsigned long
src = kmap_atomic(s_page, KM_USER0);
dst = kmap_atomic(d_page, KM_USER1);
do_copy_page(dst, src);
- kunmap_atomic(src, KM_USER0);
kunmap_atomic(dst, KM_USER1);
+ kunmap_atomic(src, KM_USER0);
} else {
if (PageHighMem(d_page)) {
/* Page pointed to by src may contain some kernel
@@ -2253,8 +2253,8 @@ swap_two_pages_data(struct page *p1, str
memcpy(buf, kaddr1, PAGE_SIZE);
memcpy(kaddr1, kaddr2, PAGE_SIZE);
memcpy(kaddr2, buf, PAGE_SIZE);
- kunmap_atomic(kaddr1, KM_USER0);
kunmap_atomic(kaddr2, KM_USER1);
+ kunmap_atomic(kaddr1, KM_USER0);
}
/**
^ permalink raw reply [flat|nested] 24+ messages in thread
* [PATCH 1/5] mm: strictly nested kmap_atomic
@ 2010-09-18 15:53 ` Peter Zijlstra
0 siblings, 0 replies; 24+ messages in thread
From: Peter Zijlstra @ 2010-09-18 15:53 UTC (permalink / raw)
To: Linus Torvalds
Cc: Andrew Morton, Ingo Molnar, Thomas Gleixner, H. Peter Anvin,
Russell King, David Howells, Ralf Baechle, David Miller,
Chris Metcalf, Paul Mackerras, Benjamin Herrenschmidt,
Hugh Dickins, linux-kernel, linux-mm, linux-arch, Peter Zijlstra
[-- Attachment #1: kmap-2.patch --]
[-- Type: text/plain, Size: 4006 bytes --]
Ensure kmap_atomic usage is strictly nested
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Reviewed-by: Rik van Riel <riel@redhat.com>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
---
crypto/async_tx/async_memcpy.c | 2 +-
crypto/blkcipher.c | 2 +-
drivers/block/loop.c | 4 ++--
include/linux/highmem.h | 4 ++--
kernel/power/snapshot.c | 4 ++--
5 files changed, 8 insertions(+), 8 deletions(-)
Index: linux-2.6/crypto/async_tx/async_memcpy.c
===================================================================
--- linux-2.6.orig/crypto/async_tx/async_memcpy.c
+++ linux-2.6/crypto/async_tx/async_memcpy.c
@@ -83,8 +83,8 @@ async_memcpy(struct page *dest, struct p
memcpy(dest_buf, src_buf, len);
- kunmap_atomic(dest_buf, KM_USER0);
kunmap_atomic(src_buf, KM_USER1);
+ kunmap_atomic(dest_buf, KM_USER0);
async_tx_sync_epilog(submit);
}
Index: linux-2.6/crypto/blkcipher.c
===================================================================
--- linux-2.6.orig/crypto/blkcipher.c
+++ linux-2.6/crypto/blkcipher.c
@@ -89,9 +89,9 @@ static inline unsigned int blkcipher_don
memcpy(walk->dst.virt.addr, walk->page, n);
blkcipher_unmap_dst(walk);
} else if (!(walk->flags & BLKCIPHER_WALK_PHYS)) {
- blkcipher_unmap_src(walk);
if (walk->flags & BLKCIPHER_WALK_DIFF)
blkcipher_unmap_dst(walk);
+ blkcipher_unmap_src(walk);
}
scatterwalk_advance(&walk->in, n);
Index: linux-2.6/drivers/block/loop.c
===================================================================
--- linux-2.6.orig/drivers/block/loop.c
+++ linux-2.6/drivers/block/loop.c
@@ -99,8 +99,8 @@ static int transfer_none(struct loop_dev
else
memcpy(raw_buf, loop_buf, size);
- kunmap_atomic(raw_buf, KM_USER0);
kunmap_atomic(loop_buf, KM_USER1);
+ kunmap_atomic(raw_buf, KM_USER0);
cond_resched();
return 0;
}
@@ -128,8 +128,8 @@ static int transfer_xor(struct loop_devi
for (i = 0; i < size; i++)
*out++ = *in++ ^ key[(i & 511) % keysize];
- kunmap_atomic(raw_buf, KM_USER0);
kunmap_atomic(loop_buf, KM_USER1);
+ kunmap_atomic(raw_buf, KM_USER0);
cond_resched();
return 0;
}
Index: linux-2.6/include/linux/highmem.h
===================================================================
--- linux-2.6.orig/include/linux/highmem.h
+++ linux-2.6/include/linux/highmem.h
@@ -191,8 +191,8 @@ static inline void copy_user_highpage(st
vfrom = kmap_atomic(from, KM_USER0);
vto = kmap_atomic(to, KM_USER1);
copy_user_page(vto, vfrom, vaddr, to);
- kunmap_atomic(vfrom, KM_USER0);
kunmap_atomic(vto, KM_USER1);
+ kunmap_atomic(vfrom, KM_USER0);
}
#endif
@@ -204,8 +204,8 @@ static inline void copy_highpage(struct
vfrom = kmap_atomic(from, KM_USER0);
vto = kmap_atomic(to, KM_USER1);
copy_page(vto, vfrom);
- kunmap_atomic(vfrom, KM_USER0);
kunmap_atomic(vto, KM_USER1);
+ kunmap_atomic(vfrom, KM_USER0);
}
#endif /* _LINUX_HIGHMEM_H */
Index: linux-2.6/kernel/power/snapshot.c
===================================================================
--- linux-2.6.orig/kernel/power/snapshot.c
+++ linux-2.6/kernel/power/snapshot.c
@@ -978,8 +978,8 @@ static void copy_data_page(unsigned long
src = kmap_atomic(s_page, KM_USER0);
dst = kmap_atomic(d_page, KM_USER1);
do_copy_page(dst, src);
- kunmap_atomic(src, KM_USER0);
kunmap_atomic(dst, KM_USER1);
+ kunmap_atomic(src, KM_USER0);
} else {
if (PageHighMem(d_page)) {
/* Page pointed to by src may contain some kernel
@@ -2253,8 +2253,8 @@ swap_two_pages_data(struct page *p1, str
memcpy(buf, kaddr1, PAGE_SIZE);
memcpy(kaddr1, kaddr2, PAGE_SIZE);
memcpy(kaddr2, buf, PAGE_SIZE);
- kunmap_atomic(kaddr1, KM_USER0);
kunmap_atomic(kaddr2, KM_USER1);
+ kunmap_atomic(kaddr1, KM_USER0);
}
/**
--
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^ permalink raw reply [flat|nested] 24+ messages in thread
* [PATCH 2/5] mm: stack based kmap_atomic
2010-09-18 15:53 ` Peter Zijlstra
@ 2010-09-18 15:53 ` Peter Zijlstra
-1 siblings, 0 replies; 24+ messages in thread
From: Peter Zijlstra @ 2010-09-18 15:53 UTC (permalink / raw)
To: Linus Torvalds
Cc: Andrew Morton, Ingo Molnar, Thomas Gleixner, H. Peter Anvin,
Russell King, David Howells, Ralf Baechle, David Miller,
Chris Metcalf, Paul Mackerras, Benjamin Herrenschmidt,
Hugh Dickins, linux-kernel, linux-mm, linux-arch, Peter Zijlstra,
Rik van Riel
[-- Attachment #1: kmap-1.patch --]
[-- Type: text/plain, Size: 246607 bytes --]
Keep the current interface but ignore the KM_type and use a stack
based approach.
The advantage is that we get rid of crappy code like:
#define __KM_PTE \
(in_nmi() ? KM_NMI_PTE : \
in_irq() ? KM_IRQ_PTE : \
KM_PTE0)
and in general can stop worrying about what context we're in and what
kmap slots might be appropriate for that.
The down-side is that FRV kmap_atomic gets more expensive.
For now we use a CPP trick suggested by Andrew:
#define kmap_atomic(page, args...) __kmap_atomic(page)
to avoid having to touch all kmap_atomic users in a single patch.
[ not compiled on:
- nm10300: the arch doesn't actually build with highmem to begin with ]
Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
---
arch/arm/include/asm/highmem.h | 6
arch/arm/mm/highmem.c | 23
arch/frv/include/asm/highmem.h | 25
arch/frv/mb93090-mb00/pci-dma.c | 4
arch/frv/mm/cache-page.c | 8
arch/frv/mm/highmem.c | 51
arch/mips/include/asm/highmem.h | 18
arch/mips/mm/highmem.c | 50
arch/mn10300/include/asm/highmem.h | 42
arch/powerpc/include/asm/highmem.h | 9
arch/powerpc/mm/highmem.c | 35
arch/sparc/include/asm/highmem.h | 4
arch/sparc/mm/highmem.c | 48
arch/tile/include/asm/highmem.h | 10
arch/tile/mm/highmem.c | 85
arch/x86/include/asm/highmem.h | 11
arch/x86/include/asm/iomap.h | 4
arch/x86/kernel/crash_dump_32.c | 2
arch/x86/mm/highmem_32.c | 74
arch/x86/mm/iomap_32.c | 43
drivers/gpu/drm/i915/i915_gem.c | 9
drivers/gpu/drm/i915/i915_irq.c | 5
drivers/gpu/drm/i915/intel_overlay.c | 5
drivers/gpu/drm/nouveau/nouveau_bios.c | 8
drivers/gpu/drm/ttm/ttm_bo_util.c | 8
include/linux/highmem.h | 61
include/linux/io-mapping.h | 14
mm/highmem.c | 62
usr/src/linux-2.6/drivers/gpu/drm/nouveau/nouveau_bios.c | 6832 ---------------
29 files changed, 361 insertions(+), 7195 deletions(-)
Index: linux-2.6/arch/arm/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/highmem.c
+++ linux-2.6/arch/arm/mm/highmem.c
@@ -36,18 +36,17 @@ void kunmap(struct page *page)
}
EXPORT_SYMBOL(kunmap);
-void *kmap_atomic(struct page *page, enum km_type type)
+void *__kmap_atomic(struct page *page)
{
unsigned int idx;
unsigned long vaddr;
void *kmap;
+ int type;
pagefault_disable();
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
-
#ifdef CONFIG_DEBUG_HIGHMEM
/*
* There is no cache coherency issue when non VIVT, so force the
@@ -61,6 +60,8 @@ void *kmap_atomic(struct page *page, enu
if (kmap)
return kmap;
+ type = kmap_atomic_idx_push();
+
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -80,14 +81,17 @@ void *kmap_atomic(struct page *page, enu
return (void *)vaddr;
}
-EXPORT_SYMBOL(kmap_atomic);
+EXPORT_SYMBOL(__kmap_atomic);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- unsigned int idx = type + KM_TYPE_NR * smp_processor_id();
+ int idx, type;
if (kvaddr >= (void *)FIXADDR_START) {
+ type = kmap_atomic_idx_pop();
+ idx = type + KM_TYPE_NR * smp_processor_id();
+
if (cache_is_vivt())
__cpuc_flush_dcache_area((void *)vaddr, PAGE_SIZE);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -103,15 +107,16 @@ void kunmap_atomic_notypecheck(void *kva
}
pagefault_enable();
}
-EXPORT_SYMBOL(kunmap_atomic_notypecheck);
+EXPORT_SYMBOL(__kunmap_atomic);
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
+void *kmap_atomic_pfn(unsigned long pfn)
{
- unsigned int idx;
unsigned long vaddr;
+ int idx, type;
pagefault_disable();
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
Index: linux-2.6/arch/frv/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/frv/include/asm/highmem.h
+++ linux-2.6/arch/frv/include/asm/highmem.h
@@ -112,12 +112,11 @@ extern struct page *kmap_atomic_to_page(
(void *) damlr; \
})
-static inline void *kmap_atomic(struct page *page, enum km_type type)
+static inline void *kmap_atomic_primary(struct page *page, enum km_type type)
{
unsigned long paddr;
pagefault_disable();
- debug_kmap_atomic(type);
paddr = page_to_phys(page);
switch (type) {
@@ -125,14 +124,6 @@ static inline void *kmap_atomic(struct p
case 1: return __kmap_atomic_primary(1, paddr, 3);
case 2: return __kmap_atomic_primary(2, paddr, 4);
case 3: return __kmap_atomic_primary(3, paddr, 5);
- case 4: return __kmap_atomic_primary(4, paddr, 6);
- case 5: return __kmap_atomic_primary(5, paddr, 7);
- case 6: return __kmap_atomic_primary(6, paddr, 8);
- case 7: return __kmap_atomic_primary(7, paddr, 9);
- case 8: return __kmap_atomic_primary(8, paddr, 10);
-
- case 9 ... 9 + NR_TLB_LINES - 1:
- return __kmap_atomic_secondary(type - 9, paddr);
default:
BUG();
@@ -152,22 +143,13 @@ do { \
asm volatile("tlbpr %0,gr0,#4,#1" : : "r"(vaddr) : "memory"); \
} while(0)
-static inline void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+static inline void kunmap_atomic_primary(void *kvaddr, enum km_type type)
{
switch (type) {
case 0: __kunmap_atomic_primary(0, 2); break;
case 1: __kunmap_atomic_primary(1, 3); break;
case 2: __kunmap_atomic_primary(2, 4); break;
case 3: __kunmap_atomic_primary(3, 5); break;
- case 4: __kunmap_atomic_primary(4, 6); break;
- case 5: __kunmap_atomic_primary(5, 7); break;
- case 6: __kunmap_atomic_primary(6, 8); break;
- case 7: __kunmap_atomic_primary(7, 9); break;
- case 8: __kunmap_atomic_primary(8, 10); break;
-
- case 9 ... 9 + NR_TLB_LINES - 1:
- __kunmap_atomic_secondary(type - 9, kvaddr);
- break;
default:
BUG();
@@ -175,6 +157,9 @@ static inline void kunmap_atomic_notypec
pagefault_enable();
}
+void *__kmap_atomic(struct page *page);
+void __kunmap_atomic(void *kvaddr);
+
#endif /* !__ASSEMBLY__ */
#endif /* __KERNEL__ */
Index: linux-2.6/arch/mips/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/mips/mm/highmem.c
+++ linux-2.6/arch/mips/mm/highmem.c
@@ -9,7 +9,7 @@ static pte_t *kmap_pte;
unsigned long highstart_pfn, highend_pfn;
-void *__kmap(struct page *page)
+void *kmap(struct page *page)
{
void *addr;
@@ -21,16 +21,16 @@ void *__kmap(struct page *page)
return addr;
}
-EXPORT_SYMBOL(__kmap);
+EXPORT_SYMBOL(kmap);
-void __kunmap(struct page *page)
+void kunmap(struct page *page)
{
BUG_ON(in_interrupt());
if (!PageHighMem(page))
return;
kunmap_high(page);
}
-EXPORT_SYMBOL(__kunmap);
+EXPORT_SYMBOL(kunmap);
/*
* kmap_atomic/kunmap_atomic is significantly faster than kmap/kunmap because
@@ -41,17 +41,17 @@ EXPORT_SYMBOL(__kunmap);
* kmaps are appropriate for short, tight code paths only.
*/
-void *__kmap_atomic(struct page *page, enum km_type type)
+void *__kmap_atomic(struct page *page)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
pagefault_disable();
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -64,43 +64,47 @@ void *__kmap_atomic(struct page *page, e
}
EXPORT_SYMBOL(__kmap_atomic);
-void __kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
-#ifdef CONFIG_DEBUG_HIGHMEM
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
+ int type;
if (vaddr < FIXADDR_START) { // FIXME
pagefault_enable();
return;
}
- BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
+ type = kmap_atomic_idx_pop();
+#ifdef CONFIG_DEBUG_HIGHMEM
+ {
+ int idx = type + KM_TYPE_NR * smp_processor_id();
- /*
- * force other mappings to Oops if they'll try to access
- * this pte without first remap it
- */
- pte_clear(&init_mm, vaddr, kmap_pte-idx);
- local_flush_tlb_one(vaddr);
-#endif
+ BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
+ /*
+ * force other mappings to Oops if they'll try to access
+ * this pte without first remap it
+ */
+ pte_clear(&init_mm, vaddr, kmap_pte-idx);
+ local_flush_tlb_one(vaddr);
+ }
+#endif
pagefault_enable();
}
-EXPORT_SYMBOL(__kunmap_atomic_notypecheck);
+EXPORT_SYMBOL(__kunmap_atomic);
/*
* This is the same as kmap_atomic() but can map memory that doesn't
* have a struct page associated with it.
*/
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
+void *kmap_atomic_pfn(unsigned long pfn)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
pagefault_disable();
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
set_pte(kmap_pte-idx, pfn_pte(pfn, PAGE_KERNEL));
@@ -109,7 +113,7 @@ void *kmap_atomic_pfn(unsigned long pfn,
return (void*) vaddr;
}
-struct page *__kmap_atomic_to_page(void *ptr)
+struct page *kmap_atomic_to_page(void *ptr)
{
unsigned long idx, vaddr = (unsigned long)ptr;
pte_t *pte;
Index: linux-2.6/arch/mn10300/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/mn10300/include/asm/highmem.h
+++ linux-2.6/arch/mn10300/include/asm/highmem.h
@@ -70,15 +70,16 @@ static inline void kunmap(struct page *p
* be used in IRQ contexts, so in some (very limited) cases we need
* it.
*/
-static inline unsigned long kmap_atomic(struct page *page, enum km_type type)
+static inline unsigned long __kmap_atomic(struct page *page)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
+ pagefault_disable();
if (page < highmem_start_page)
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#if HIGHMEM_DEBUG
@@ -91,26 +92,35 @@ static inline unsigned long kmap_atomic(
return vaddr;
}
-static inline void kunmap_atomic_notypecheck(unsigned long vaddr, enum km_type type)
+static inline void __kunmap_atomic(unsigned long vaddr)
{
-#if HIGHMEM_DEBUG
- enum fixed_addresses idx = type + KM_TYPE_NR * smp_processor_id();
+ int type;
- if (vaddr < FIXADDR_START) /* FIXME */
+ if (vaddr < FIXADDR_START) { /* FIXME */
+ pagefault_enable();
return;
+ }
- if (vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx))
- BUG();
+ type = kmap_atomic_idx_pop();
- /*
- * force other mappings to Oops if they'll try to access
- * this pte without first remap it
- */
- pte_clear(kmap_pte - idx);
- __flush_tlb_one(vaddr);
+#if HIGHMEM_DEBUG
+ {
+ unsigned int idx;
+ idx = type + KM_TYPE_NR * smp_processor_id();
+
+ if (vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx))
+ BUG();
+
+ /*
+ * force other mappings to Oops if they'll try to access
+ * this pte without first remap it
+ */
+ pte_clear(kmap_pte - idx);
+ __flush_tlb_one(vaddr);
+ }
#endif
+ pagefault_enable();
}
-
#endif /* __KERNEL__ */
#endif /* _ASM_HIGHMEM_H */
Index: linux-2.6/arch/powerpc/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/powerpc/mm/highmem.c
+++ linux-2.6/arch/powerpc/mm/highmem.c
@@ -29,17 +29,17 @@
* be used in IRQ contexts, so in some (very limited) cases we need
* it.
*/
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot(struct page *page, pgprot_t prot)
{
- unsigned int idx;
unsigned long vaddr;
+ int idx, type;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
pagefault_disable();
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -52,26 +52,33 @@ void *kmap_atomic_prot(struct page *page
}
EXPORT_SYMBOL(kmap_atomic_prot);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
-#ifdef CONFIG_DEBUG_HIGHMEM
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
+ int type;
if (vaddr < __fix_to_virt(FIX_KMAP_END)) {
pagefault_enable();
return;
}
- BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
+ type = kmap_atomic_idx_pop();
- /*
- * force other mappings to Oops if they'll try to access
- * this pte without first remap it
- */
- pte_clear(&init_mm, vaddr, kmap_pte-idx);
- local_flush_tlb_page(NULL, vaddr);
+#ifdef CONFIG_DEBUG_HIGHMEM
+ {
+ unsigned int idx;
+
+ idx = type + KM_TYPE_NR * smp_processor_id();
+ BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
+
+ /*
+ * force other mappings to Oops if they'll try to access
+ * this pte without first remap it
+ */
+ pte_clear(&init_mm, vaddr, kmap_pte-idx);
+ local_flush_tlb_page(NULL, vaddr);
+ }
#endif
pagefault_enable();
}
-EXPORT_SYMBOL(kunmap_atomic_notypecheck);
+EXPORT_SYMBOL(__kunmap_atomic);
Index: linux-2.6/arch/sparc/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/sparc/mm/highmem.c
+++ linux-2.6/arch/sparc/mm/highmem.c
@@ -29,17 +29,17 @@
#include <asm/tlbflush.h>
#include <asm/fixmap.h>
-void *kmap_atomic(struct page *page, enum km_type type)
+void *__kmap_atomic(struct page *page)
{
- unsigned long idx;
unsigned long vaddr;
+ long idx, type;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
pagefault_disable();
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
@@ -63,44 +63,50 @@ void *kmap_atomic(struct page *page, enu
return (void*) vaddr;
}
-EXPORT_SYMBOL(kmap_atomic);
+EXPORT_SYMBOL(__kmap_atomic);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
-#ifdef CONFIG_DEBUG_HIGHMEM
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- unsigned long idx = type + KM_TYPE_NR*smp_processor_id();
+ int type;
if (vaddr < FIXADDR_START) { // FIXME
pagefault_enable();
return;
}
- BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN+idx));
+ type = kmap_atomic_idx_pop();
-/* XXX Fix - Anton */
+#ifdef CONFIG_DEBUG_HIGHMEM
+ {
+ unsigned long idx;
+
+ idx = type + KM_TYPE_NR * smp_processor_id();
+ BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN+idx));
+
+ /* XXX Fix - Anton */
#if 0
- __flush_cache_one(vaddr);
+ __flush_cache_one(vaddr);
#else
- flush_cache_all();
+ flush_cache_all();
#endif
- /*
- * force other mappings to Oops if they'll try to access
- * this pte without first remap it
- */
- pte_clear(&init_mm, vaddr, kmap_pte-idx);
-/* XXX Fix - Anton */
+ /*
+ * force other mappings to Oops if they'll try to access
+ * this pte without first remap it
+ */
+ pte_clear(&init_mm, vaddr, kmap_pte-idx);
+ /* XXX Fix - Anton */
#if 0
- __flush_tlb_one(vaddr);
+ __flush_tlb_one(vaddr);
#else
- flush_tlb_all();
+ flush_tlb_all();
#endif
+ }
#endif
-
pagefault_enable();
}
-EXPORT_SYMBOL(kunmap_atomic_notypecheck);
+EXPORT_SYMBOL(__kunmap_atomic);
/* We may be fed a pagetable here by ptep_to_xxx and others. */
struct page *kmap_atomic_to_page(void *ptr)
Index: linux-2.6/arch/x86/mm/highmem_32.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/highmem_32.c
+++ linux-2.6/arch/x86/mm/highmem_32.c
@@ -9,6 +9,7 @@ void *kmap(struct page *page)
return page_address(page);
return kmap_high(page);
}
+EXPORT_SYMBOL(kmap);
void kunmap(struct page *page)
{
@@ -18,6 +19,7 @@ void kunmap(struct page *page)
return;
kunmap_high(page);
}
+EXPORT_SYMBOL(kunmap);
/*
* kmap_atomic/kunmap_atomic is significantly faster than kmap/kunmap because
@@ -27,10 +29,10 @@ void kunmap(struct page *page)
* However when holding an atomic kmap it is not legal to sleep, so atomic
* kmaps are appropriate for short, tight code paths only.
*/
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot(struct page *page, pgprot_t prot)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
pagefault_disable();
@@ -38,8 +40,7 @@ void *kmap_atomic_prot(struct page *page
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
-
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
BUG_ON(!pte_none(*(kmap_pte-idx)));
@@ -47,44 +48,57 @@ void *kmap_atomic_prot(struct page *page
return (void *)vaddr;
}
+EXPORT_SYMBOL(kmap_atomic_prot);
+
+void *__kmap_atomic(struct page *page)
+{
+ return kmap_atomic_prot(page, kmap_prot);
+}
+EXPORT_SYMBOL(__kmap_atomic);
-void *kmap_atomic(struct page *page, enum km_type type)
+/*
+ * This is the same as kmap_atomic() but can map memory that doesn't
+ * have a struct page associated with it.
+ */
+void *kmap_atomic_pfn(unsigned long pfn)
{
- return kmap_atomic_prot(page, type, kmap_prot);
+ return kmap_atomic_prot_pfn(pfn, kmap_prot);
}
+EXPORT_SYMBOL_GPL(kmap_atomic_pfn);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
- /*
- * Force other mappings to Oops if they'll try to access this pte
- * without first remap it. Keeping stale mappings around is a bad idea
- * also, in case the page changes cacheability attributes or becomes
- * a protected page in a hypervisor.
- */
- if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx))
+ if (vaddr >= __fix_to_virt(FIX_KMAP_END) &&
+ vaddr <= __fix_to_virt(FIX_KMAP_BEGIN)) {
+ int idx, type;
+
+ type = kmap_atomic_idx_pop();
+ idx = type + KM_TYPE_NR * smp_processor_id();
+
+#ifdef CONFIG_DEBUG_HIGHMEM
+ WARN_ON_ONCE(idx !=
+ ((vaddr - __fix_to_virt(FIX_KMAP_BEGIN)) >> PAGE_SHIFT));
+#endif
+ /*
+ * Force other mappings to Oops if they'll try to access this
+ * pte without first remap it. Keeping stale mappings around
+ * is a bad idea also, in case the page changes cacheability
+ * attributes or becomes a protected page in a hypervisor.
+ */
kpte_clear_flush(kmap_pte-idx, vaddr);
- else {
+ }
#ifdef CONFIG_DEBUG_HIGHMEM
+ else {
BUG_ON(vaddr < PAGE_OFFSET);
BUG_ON(vaddr >= (unsigned long)high_memory);
-#endif
}
+#endif
pagefault_enable();
}
-
-/*
- * This is the same as kmap_atomic() but can map memory that doesn't
- * have a struct page associated with it.
- */
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
-{
- return kmap_atomic_prot_pfn(pfn, type, kmap_prot);
-}
-EXPORT_SYMBOL_GPL(kmap_atomic_pfn); /* temporarily in use by i915 GEM until vmap */
+EXPORT_SYMBOL(__kunmap_atomic);
struct page *kmap_atomic_to_page(void *ptr)
{
@@ -98,12 +112,6 @@ struct page *kmap_atomic_to_page(void *p
pte = kmap_pte - (idx - FIX_KMAP_BEGIN);
return pte_page(*pte);
}
-
-EXPORT_SYMBOL(kmap);
-EXPORT_SYMBOL(kunmap);
-EXPORT_SYMBOL(kmap_atomic);
-EXPORT_SYMBOL(kunmap_atomic_notypecheck);
-EXPORT_SYMBOL(kmap_atomic_prot);
EXPORT_SYMBOL(kmap_atomic_to_page);
void __init set_highmem_pages_init(void)
Index: linux-2.6/include/linux/highmem.h
===================================================================
--- linux-2.6.orig/include/linux/highmem.h
+++ linux-2.6/include/linux/highmem.h
@@ -28,18 +28,6 @@ static inline void invalidate_kernel_vma
#include <asm/kmap_types.h>
-#ifdef CONFIG_DEBUG_HIGHMEM
-
-void debug_kmap_atomic(enum km_type type);
-
-#else
-
-static inline void debug_kmap_atomic(enum km_type type)
-{
-}
-
-#endif
-
#ifdef CONFIG_HIGHMEM
#include <asm/highmem.h>
@@ -49,6 +37,27 @@ extern unsigned long totalhigh_pages;
void kmap_flush_unused(void);
+DECLARE_PER_CPU(int, __kmap_atomic_idx);
+
+static inline int kmap_atomic_idx_push(void)
+{
+ int idx = __get_cpu_var(__kmap_atomic_idx)++;
+#ifdef CONFIG_DEBUG_HIGHMEM
+ WARN_ON_ONCE(in_irq() && !irqs_disabled());
+ BUG_ON(idx > KM_TYPE_NR);
+#endif
+ return idx;
+}
+
+static inline int kmap_atomic_idx_pop(void)
+{
+ int idx = --__get_cpu_var(__kmap_atomic_idx);
+#ifdef CONFIG_DEBUG_HIGHMEM
+ BUG_ON(idx < 0);
+#endif
+ return idx;
+}
+
#else /* CONFIG_HIGHMEM */
static inline unsigned int nr_free_highpages(void) { return 0; }
@@ -66,19 +75,19 @@ static inline void kunmap(struct page *p
{
}
-static inline void *kmap_atomic(struct page *page, enum km_type idx)
+static inline void *__kmap_atomic(struct page *page)
{
pagefault_disable();
return page_address(page);
}
-#define kmap_atomic_prot(page, idx, prot) kmap_atomic(page, idx)
+#define kmap_atomic_prot(page, prot) __kmap_atomic(page)
-static inline void kunmap_atomic_notypecheck(void *addr, enum km_type idx)
+static inline void __kunmap_atomic(void *addr)
{
pagefault_enable();
}
-#define kmap_atomic_pfn(pfn, idx) kmap_atomic(pfn_to_page(pfn), (idx))
+#define kmap_atomic_pfn(pfn) kmap_atomic(pfn_to_page(pfn))
#define kmap_atomic_to_page(ptr) virt_to_page(ptr)
#define kmap_flush_unused() do {} while(0)
@@ -86,12 +95,20 @@ static inline void kunmap_atomic_notypec
#endif /* CONFIG_HIGHMEM */
-/* Prevent people trying to call kunmap_atomic() as if it were kunmap() */
-/* kunmap_atomic() should get the return value of kmap_atomic, not the page. */
-#define kunmap_atomic(addr, idx) do { \
- BUILD_BUG_ON(__same_type((addr), struct page *)); \
- kunmap_atomic_notypecheck((addr), (idx)); \
- } while (0)
+/*
+ * Make both: kmap_atomic(page, idx) and kmap_atomic(page) work.
+ */
+#define kmap_atomic(page, args...) __kmap_atomic(page)
+
+/*
+ * Prevent people trying to call kunmap_atomic() as if it were kunmap()
+ * kunmap_atomic() should get the return value of kmap_atomic, not the page.
+ */
+#define kunmap_atomic(addr, args...) \
+do { \
+ BUILD_BUG_ON(__same_type((addr), struct page *)); \
+ __kunmap_atomic(addr); \
+} while (0)
/* when CONFIG_HIGHMEM is not set these will be plain clear/copy_page */
#ifndef clear_user_highpage
Index: linux-2.6/mm/highmem.c
===================================================================
--- linux-2.6.orig/mm/highmem.c
+++ linux-2.6/mm/highmem.c
@@ -42,6 +42,10 @@
unsigned long totalhigh_pages __read_mostly;
EXPORT_SYMBOL(totalhigh_pages);
+
+DEFINE_PER_CPU(int, __kmap_atomic_idx);
+EXPORT_PER_CPU_SYMBOL(__kmap_atomic_idx);
+
unsigned int nr_free_highpages (void)
{
pg_data_t *pgdat;
@@ -422,61 +426,3 @@ void __init page_address_init(void)
}
#endif /* defined(CONFIG_HIGHMEM) && !defined(WANT_PAGE_VIRTUAL) */
-
-#ifdef CONFIG_DEBUG_HIGHMEM
-
-void debug_kmap_atomic(enum km_type type)
-{
- static int warn_count = 10;
-
- if (unlikely(warn_count < 0))
- return;
-
- if (unlikely(in_interrupt())) {
- if (in_nmi()) {
- if (type != KM_NMI && type != KM_NMI_PTE) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (in_irq()) {
- if (type != KM_IRQ0 && type != KM_IRQ1 &&
- type != KM_BIO_SRC_IRQ && type != KM_BIO_DST_IRQ &&
- type != KM_BOUNCE_READ && type != KM_IRQ_PTE) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (!irqs_disabled()) { /* softirq */
- if (type != KM_IRQ0 && type != KM_IRQ1 &&
- type != KM_SOFTIRQ0 && type != KM_SOFTIRQ1 &&
- type != KM_SKB_SUNRPC_DATA &&
- type != KM_SKB_DATA_SOFTIRQ &&
- type != KM_BOUNCE_READ) {
- WARN_ON(1);
- warn_count--;
- }
- }
- }
-
- if (type == KM_IRQ0 || type == KM_IRQ1 || type == KM_BOUNCE_READ ||
- type == KM_BIO_SRC_IRQ || type == KM_BIO_DST_IRQ ||
- type == KM_IRQ_PTE || type == KM_NMI ||
- type == KM_NMI_PTE ) {
- if (!irqs_disabled()) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (type == KM_SOFTIRQ0 || type == KM_SOFTIRQ1) {
- if (irq_count() == 0 && !irqs_disabled()) {
- WARN_ON(1);
- warn_count--;
- }
- }
-#ifdef CONFIG_KGDB_KDB
- if (unlikely(type == KM_KDB && atomic_read(&kgdb_active) == -1)) {
- WARN_ON(1);
- warn_count--;
- }
-#endif /* CONFIG_KGDB_KDB */
-}
-
-#endif
Index: linux-2.6/arch/x86/mm/iomap_32.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/iomap_32.c
+++ linux-2.6/arch/x86/mm/iomap_32.c
@@ -48,21 +48,20 @@ int iomap_create_wc(resource_size_t base
}
EXPORT_SYMBOL_GPL(iomap_create_wc);
-void
-iomap_free(resource_size_t base, unsigned long size)
+void iomap_free(resource_size_t base, unsigned long size)
{
io_free_memtype(base, base + size);
}
EXPORT_SYMBOL_GPL(iomap_free);
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
pagefault_disable();
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
set_pte(kmap_pte - idx, pfn_pte(pfn, prot));
@@ -72,10 +71,10 @@ void *kmap_atomic_prot_pfn(unsigned long
}
/*
- * Map 'pfn' using fixed map 'type' and protections 'prot'
+ * Map 'pfn' using protections 'prot'
*/
void __iomem *
-iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
+iomap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
{
/*
* For non-PAT systems, promote PAGE_KERNEL_WC to PAGE_KERNEL_UC_MINUS.
@@ -86,24 +85,34 @@ iomap_atomic_prot_pfn(unsigned long pfn,
if (!pat_enabled && pgprot_val(prot) == pgprot_val(PAGE_KERNEL_WC))
prot = PAGE_KERNEL_UC_MINUS;
- return (void __force __iomem *) kmap_atomic_prot_pfn(pfn, type, prot);
+ return (void __force __iomem *) kmap_atomic_prot_pfn(pfn, prot);
}
EXPORT_SYMBOL_GPL(iomap_atomic_prot_pfn);
void
-iounmap_atomic(void __iomem *kvaddr, enum km_type type)
+iounmap_atomic(void __iomem *kvaddr)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
- /*
- * Force other mappings to Oops if they'll try to access this pte
- * without first remap it. Keeping stale mappings around is a bad idea
- * also, in case the page changes cacheability attributes or becomes
- * a protected page in a hypervisor.
- */
- if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx))
+ if (vaddr >= __fix_to_virt(FIX_KMAP_END) &&
+ vaddr <= __fix_to_virt(FIX_KMAP_BEGIN)) {
+ int idx, type;
+
+ type = kmap_atomic_idx_pop();
+ idx = type + KM_TYPE_NR * smp_processor_id();
+
+#ifdef CONFIG_DEBUG_HIGHMEM
+ WARN_ON_ONCE(idx !=
+ ((vaddr - __fix_to_virt(FIX_KMAP_BEGIN)) >> PAGE_SHIFT));
+#endif
+ /*
+ * Force other mappings to Oops if they'll try to access this
+ * pte without first remap it. Keeping stale mappings around
+ * is a bad idea also, in case the page changes cacheability
+ * attributes or becomes a protected page in a hypervisor.
+ */
kpte_clear_flush(kmap_pte-idx, vaddr);
+ }
pagefault_enable();
}
Index: linux-2.6/arch/frv/mb93090-mb00/pci-dma.c
===================================================================
--- linux-2.6.orig/arch/frv/mb93090-mb00/pci-dma.c
+++ linux-2.6/arch/frv/mb93090-mb00/pci-dma.c
@@ -61,14 +61,14 @@ int dma_map_sg(struct device *dev, struc
dampr2 = __get_DAMPR(2);
for (i = 0; i < nents; i++) {
- vaddr = kmap_atomic(sg_page(&sg[i]), __KM_CACHE);
+ vaddr = kmap_atomic_primary(sg_page(&sg[i]), __KM_CACHE);
frv_dcache_writeback((unsigned long) vaddr,
(unsigned long) vaddr + PAGE_SIZE);
}
- kunmap_atomic(vaddr, __KM_CACHE);
+ kunmap_atomic_primary(vaddr, __KM_CACHE);
if (dampr2) {
__set_DAMPR(2, dampr2);
__set_IAMPR(2, dampr2);
Index: linux-2.6/arch/frv/mm/cache-page.c
===================================================================
--- linux-2.6.orig/arch/frv/mm/cache-page.c
+++ linux-2.6/arch/frv/mm/cache-page.c
@@ -26,11 +26,11 @@ void flush_dcache_page(struct page *page
dampr2 = __get_DAMPR(2);
- vaddr = kmap_atomic(page, __KM_CACHE);
+ vaddr = kmap_atomic_primary(page, __KM_CACHE);
frv_dcache_writeback((unsigned long) vaddr, (unsigned long) vaddr + PAGE_SIZE);
- kunmap_atomic(vaddr, __KM_CACHE);
+ kunmap_atomic_primary(vaddr, __KM_CACHE);
if (dampr2) {
__set_DAMPR(2, dampr2);
@@ -54,12 +54,12 @@ void flush_icache_user_range(struct vm_a
dampr2 = __get_DAMPR(2);
- vaddr = kmap_atomic(page, __KM_CACHE);
+ vaddr = kmap_atomic_primary(page, __KM_CACHE);
start = (start & ~PAGE_MASK) | (unsigned long) vaddr;
frv_cache_wback_inv(start, start + len);
- kunmap_atomic(vaddr, __KM_CACHE);
+ kunmap_atomic_primary(vaddr, __KM_CACHE);
if (dampr2) {
__set_DAMPR(2, dampr2);
Index: linux-2.6/arch/frv/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/frv/mm/highmem.c
+++ linux-2.6/arch/frv/mm/highmem.c
@@ -36,3 +36,54 @@ struct page *kmap_atomic_to_page(void *p
{
return virt_to_page(ptr);
}
+
+void *__kmap_atomic(struct page *page)
+{
+ unsigned long paddr;
+ int type;
+
+ pagefault_disable();
+ type = kmap_atomic_idx_push();
+ paddr = page_to_phys(page);
+
+ switch (type) {
+ /*
+ * The first 4 primary maps are reserved for architecture code
+ */
+ case 0: return __kmap_atomic_primary(4, paddr, 6);
+ case 1: return __kmap_atomic_primary(5, paddr, 7);
+ case 2: return __kmap_atomic_primary(6, paddr, 8);
+ case 3: return __kmap_atomic_primary(7, paddr, 9);
+ case 4: return __kmap_atomic_primary(8, paddr, 10);
+
+ case 5 ... 5 + NR_TLB_LINES - 1:
+ return __kmap_atomic_secondary(type - 5, paddr);
+
+ default:
+ BUG();
+ return NULL;
+ }
+}
+EXPORT_SYMBOL(__kmap_atomic);
+
+void __kunmap_atomic(void *kvaddr)
+{
+ int type = kmap_atomic_idx_pop();
+ switch (type) {
+ case 0: __kunmap_atomic_primary(4, 6); break;
+ case 1: __kunmap_atomic_primary(5, 7); break;
+ case 2: __kunmap_atomic_primary(6, 8); break;
+ case 3: __kunmap_atomic_primary(7, 9); break;
+ case 4: __kunmap_atomic_primary(8, 10); break;
+
+ case 5 ... 5 + NR_TLB_LINES - 1:
+ __kunmap_atomic_secondary(type - 5, kvaddr);
+ break;
+
+ default:
+ BUG();
+ }
+ pagefault_enable();
+}
+EXPORT_SYMBOL(__kunmap_atomic);
+
Index: linux-2.6/arch/arm/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/arm/include/asm/highmem.h
+++ linux-2.6/arch/arm/include/asm/highmem.h
@@ -35,9 +35,9 @@ extern void kunmap_high_l1_vipt(struct p
#ifdef CONFIG_HIGHMEM
extern void *kmap(struct page *page);
extern void kunmap(struct page *page);
-extern void *kmap_atomic(struct page *page, enum km_type type);
-extern void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
-extern void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
+extern void *__kmap_atomic(struct page *page);
+extern void __kunmap_atomic(void *kvaddr);
+extern void *kmap_atomic_pfn(unsigned long pfn);
extern struct page *kmap_atomic_to_page(const void *ptr);
#endif
Index: linux-2.6/arch/mips/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/mips/include/asm/highmem.h
+++ linux-2.6/arch/mips/include/asm/highmem.h
@@ -45,18 +45,12 @@ extern pte_t *pkmap_page_table;
extern void * kmap_high(struct page *page);
extern void kunmap_high(struct page *page);
-extern void *__kmap(struct page *page);
-extern void __kunmap(struct page *page);
-extern void *__kmap_atomic(struct page *page, enum km_type type);
-extern void __kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
-extern void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
-extern struct page *__kmap_atomic_to_page(void *ptr);
-
-#define kmap __kmap
-#define kunmap __kunmap
-#define kmap_atomic __kmap_atomic
-#define kunmap_atomic_notypecheck __kunmap_atomic_notypecheck
-#define kmap_atomic_to_page __kmap_atomic_to_page
+extern void *kmap(struct page *page);
+extern void kunmap(struct page *page);
+extern void *__kmap_atomic(struct page *page);
+extern void __kunmap_atomic(void *kvaddr);
+extern void *kmap_atomic_pfn(unsigned long pfn);
+extern struct page *kmap_atomic_to_page(void *ptr);
#define flush_cache_kmaps() flush_cache_all()
Index: linux-2.6/arch/powerpc/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/powerpc/include/asm/highmem.h
+++ linux-2.6/arch/powerpc/include/asm/highmem.h
@@ -60,9 +60,8 @@ extern pte_t *pkmap_page_table;
extern void *kmap_high(struct page *page);
extern void kunmap_high(struct page *page);
-extern void *kmap_atomic_prot(struct page *page, enum km_type type,
- pgprot_t prot);
-extern void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
+extern void *kmap_atomic_prot(struct page *page, pgprot_t prot);
+extern void __kunmap_atomic(void *kvaddr);
static inline void *kmap(struct page *page)
{
@@ -80,9 +79,9 @@ static inline void kunmap(struct page *p
kunmap_high(page);
}
-static inline void *kmap_atomic(struct page *page, enum km_type type)
+static inline void *__kmap_atomic(struct page *page)
{
- return kmap_atomic_prot(page, type, kmap_prot);
+ return kmap_atomic_prot(page, kmap_prot);
}
static inline struct page *kmap_atomic_to_page(void *ptr)
Index: linux-2.6/arch/sparc/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/sparc/include/asm/highmem.h
+++ linux-2.6/arch/sparc/include/asm/highmem.h
@@ -70,8 +70,8 @@ static inline void kunmap(struct page *p
kunmap_high(page);
}
-extern void *kmap_atomic(struct page *page, enum km_type type);
-extern void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
+extern void *__kmap_atomic(struct page *page);
+extern void __kunmap_atomic(void *kvaddr);
extern struct page *kmap_atomic_to_page(void *vaddr);
#define flush_cache_kmaps() flush_cache_all()
Index: linux-2.6/arch/tile/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/tile/include/asm/highmem.h
+++ linux-2.6/arch/tile/include/asm/highmem.h
@@ -60,12 +60,12 @@ void *kmap_fix_kpte(struct page *page, i
/* This macro is used only in map_new_virtual() to map "page". */
#define kmap_prot page_to_kpgprot(page)
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
+void *__kmap_atomic(struct page *page);
+void __kunmap_atomic(void *kvaddr);
+void *kmap_atomic_pfn(unsigned long pfn);
+void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
struct page *kmap_atomic_to_page(void *ptr);
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot);
-void *kmap_atomic(struct page *page, enum km_type type);
+void *kmap_atomic_prot(struct page *page, pgprot_t prot);
void kmap_atomic_fix_kpte(struct page *page, int finished);
#define flush_cache_kmaps() do { } while (0)
Index: linux-2.6/arch/tile/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/tile/mm/highmem.c
+++ linux-2.6/arch/tile/mm/highmem.c
@@ -56,50 +56,6 @@ void kunmap(struct page *page)
}
EXPORT_SYMBOL(kunmap);
-static void debug_kmap_atomic_prot(enum km_type type)
-{
-#ifdef CONFIG_DEBUG_HIGHMEM
- static unsigned warn_count = 10;
-
- if (unlikely(warn_count == 0))
- return;
-
- if (unlikely(in_interrupt())) {
- if (in_irq()) {
- if (type != KM_IRQ0 && type != KM_IRQ1 &&
- type != KM_BIO_SRC_IRQ &&
- /* type != KM_BIO_DST_IRQ && */
- type != KM_BOUNCE_READ) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (!irqs_disabled()) { /* softirq */
- if (type != KM_IRQ0 && type != KM_IRQ1 &&
- type != KM_SOFTIRQ0 && type != KM_SOFTIRQ1 &&
- type != KM_SKB_SUNRPC_DATA &&
- type != KM_SKB_DATA_SOFTIRQ &&
- type != KM_BOUNCE_READ) {
- WARN_ON(1);
- warn_count--;
- }
- }
- }
-
- if (type == KM_IRQ0 || type == KM_IRQ1 || type == KM_BOUNCE_READ ||
- type == KM_BIO_SRC_IRQ /* || type == KM_BIO_DST_IRQ */) {
- if (!irqs_disabled()) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (type == KM_SOFTIRQ0 || type == KM_SOFTIRQ1) {
- if (irq_count() == 0 && !irqs_disabled()) {
- WARN_ON(1);
- warn_count--;
- }
- }
-#endif
-}
-
/*
* Describe a single atomic mapping of a page on a given cpu at a
* given address, and allow it to be linked into a list.
@@ -240,10 +196,10 @@ void kmap_atomic_fix_kpte(struct page *p
* When holding an atomic kmap is is not legal to sleep, so atomic
* kmaps are appropriate for short, tight code paths only.
*/
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot(struct page *page, pgprot_t prot)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
pte_t *pte;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
@@ -255,8 +211,7 @@ void *kmap_atomic_prot(struct page *page
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic_prot(type);
-
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
pte = kmap_get_pte(vaddr);
@@ -269,25 +224,31 @@ void *kmap_atomic_prot(struct page *page
}
EXPORT_SYMBOL(kmap_atomic_prot);
-void *kmap_atomic(struct page *page, enum km_type type)
+void *__kmap_atomic(struct page *page)
{
/* PAGE_NONE is a magic value that tells us to check immutability. */
return kmap_atomic_prot(page, type, PAGE_NONE);
}
-EXPORT_SYMBOL(kmap_atomic);
+EXPORT_SYMBOL(__kmap_atomic);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
- /*
- * Force other mappings to Oops if they try to access this pte without
- * first remapping it. Keeping stale mappings around is a bad idea.
- */
- if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx)) {
+ if (vaddr >= __fix_to_virt(FIX_KMAP_END) &&
+ vaddr <= __fix_to_virt(FIX_KMAP_BEGIN)) {
pte_t *pte = kmap_get_pte(vaddr);
pte_t pteval = *pte;
+ int idx, type;
+
+ type = kmap_atomic_idx_pop();
+ idx = type + KM_TYPE_NR*smp_processor_id();
+
+ /*
+ * Force other mappings to Oops if they try to access this pte
+ * without first remapping it. Keeping stale mappings around
+ * is a bad idea.
+ */
BUG_ON(!pte_present(pteval) && !pte_migrating(pteval));
kmap_atomic_unregister(pte_page(pteval), vaddr);
kpte_clear_flush(pte, vaddr);
@@ -300,19 +261,19 @@ void kunmap_atomic_notypecheck(void *kva
arch_flush_lazy_mmu_mode();
pagefault_enable();
}
-EXPORT_SYMBOL(kunmap_atomic_notypecheck);
+EXPORT_SYMBOL(__kunmap_atomic);
/*
* This API is supposed to allow us to map memory without a "struct page".
* Currently we don't support this, though this may change in the future.
*/
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
+void *kmap_atomic_pfn(unsigned long pfn)
{
- return kmap_atomic(pfn_to_page(pfn), type);
+ return kmap_atomic(pfn_to_page(pfn));
}
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
{
- return kmap_atomic_prot(pfn_to_page(pfn), type, prot);
+ return kmap_atomic_prot(pfn_to_page(pfn), prot);
}
struct page *kmap_atomic_to_page(void *ptr)
Index: linux-2.6/arch/x86/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/highmem.h
+++ linux-2.6/arch/x86/include/asm/highmem.h
@@ -59,11 +59,12 @@ extern void kunmap_high(struct page *pag
void *kmap(struct page *page);
void kunmap(struct page *page);
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot);
-void *kmap_atomic(struct page *page, enum km_type type);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
+
+void *kmap_atomic_prot(struct page *page, pgprot_t prot);
+void *__kmap_atomic(struct page *page);
+void __kunmap_atomic(void *kvaddr);
+void *kmap_atomic_pfn(unsigned long pfn);
+void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
struct page *kmap_atomic_to_page(void *ptr);
#define flush_cache_kmaps() do { } while (0)
Index: linux-2.6/arch/x86/kernel/crash_dump_32.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/crash_dump_32.c
+++ linux-2.6/arch/x86/kernel/crash_dump_32.c
@@ -61,7 +61,7 @@ ssize_t copy_oldmem_page(unsigned long p
if (!is_crashed_pfn_valid(pfn))
return -EFAULT;
- vaddr = kmap_atomic_pfn(pfn, KM_PTE0);
+ vaddr = kmap_atomic_pfn(pfn);
if (!userbuf) {
memcpy(buf, (vaddr + offset), csize);
Index: linux-2.6/arch/x86/include/asm/iomap.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/iomap.h
+++ linux-2.6/arch/x86/include/asm/iomap.h
@@ -27,10 +27,10 @@
#include <asm/tlbflush.h>
void __iomem *
-iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
+iomap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
void
-iounmap_atomic(void __iomem *kvaddr, enum km_type type);
+iounmap_atomic(void __iomem *kvaddr);
int
iomap_create_wc(resource_size_t base, unsigned long size, pgprot_t *prot);
Index: linux-2.6/drivers/gpu/drm/i915/i915_gem.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/i915/i915_gem.c
+++ linux-2.6/drivers/gpu/drm/i915/i915_gem.c
@@ -504,10 +504,10 @@ fast_user_write(struct io_mapping *mappi
char *vaddr_atomic;
unsigned long unwritten;
- vaddr_atomic = io_mapping_map_atomic_wc(mapping, page_base, KM_USER0);
+ vaddr_atomic = io_mapping_map_atomic_wc(mapping, page_base);
unwritten = __copy_from_user_inatomic_nocache(vaddr_atomic + page_offset,
user_data, length);
- io_mapping_unmap_atomic(vaddr_atomic, KM_USER0);
+ io_mapping_unmap_atomic(vaddr_atomic);
if (unwritten)
return -EFAULT;
return 0;
@@ -3327,8 +3327,7 @@ i915_gem_object_pin_and_relocate(struct
reloc_offset = obj_priv->gtt_offset + reloc->offset;
reloc_page = io_mapping_map_atomic_wc(dev_priv->mm.gtt_mapping,
(reloc_offset &
- ~(PAGE_SIZE - 1)),
- KM_USER0);
+ ~(PAGE_SIZE - 1)));
reloc_entry = (uint32_t __iomem *)(reloc_page +
(reloc_offset & (PAGE_SIZE - 1)));
reloc_val = target_obj_priv->gtt_offset + reloc->delta;
@@ -3339,7 +3338,7 @@ i915_gem_object_pin_and_relocate(struct
readl(reloc_entry), reloc_val);
#endif
writel(reloc_val, reloc_entry);
- io_mapping_unmap_atomic(reloc_page, KM_USER0);
+ io_mapping_unmap_atomic(reloc_page);
/* The updated presumed offset for this entry will be
* copied back out to the user.
Index: linux-2.6/drivers/gpu/drm/i915/i915_irq.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/i915/i915_irq.c
+++ linux-2.6/drivers/gpu/drm/i915/i915_irq.c
@@ -456,10 +456,9 @@ i915_error_object_create(struct drm_devi
local_irq_save(flags);
s = io_mapping_map_atomic_wc(dev_priv->mm.gtt_mapping,
- reloc_offset,
- KM_IRQ0);
+ reloc_offset);
memcpy_fromio(d, s, PAGE_SIZE);
- io_mapping_unmap_atomic(s, KM_IRQ0);
+ io_mapping_unmap_atomic(s);
local_irq_restore(flags);
dst->pages[page] = d;
Index: linux-2.6/drivers/gpu/drm/i915/intel_overlay.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/i915/intel_overlay.c
+++ linux-2.6/drivers/gpu/drm/i915/intel_overlay.c
@@ -185,8 +185,7 @@ static struct overlay_registers *intel_o
if (OVERLAY_NONPHYSICAL(overlay->dev)) {
regs = io_mapping_map_atomic_wc(dev_priv->mm.gtt_mapping,
- overlay->reg_bo->gtt_offset,
- KM_USER0);
+ overlay->reg_bo->gtt_offset);
if (!regs) {
DRM_ERROR("failed to map overlay regs in GTT\n");
@@ -201,7 +200,7 @@ static struct overlay_registers *intel_o
static void intel_overlay_unmap_regs_atomic(struct intel_overlay *overlay)
{
if (OVERLAY_NONPHYSICAL(overlay->dev))
- io_mapping_unmap_atomic(overlay->virt_addr, KM_USER0);
+ io_mapping_unmap_atomic(overlay->virt_addr);
overlay->virt_addr = NULL;
Index: linux-2.6/drivers/gpu/drm/ttm/ttm_bo_util.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ linux-2.6/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -170,7 +170,7 @@ static int ttm_copy_io_ttm_page(struct t
src = (void *)((unsigned long)src + (page << PAGE_SHIFT));
#ifdef CONFIG_X86
- dst = kmap_atomic_prot(d, KM_USER0, prot);
+ dst = kmap_atomic_prot(d, prot);
#else
if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
dst = vmap(&d, 1, 0, prot);
@@ -183,7 +183,7 @@ static int ttm_copy_io_ttm_page(struct t
memcpy_fromio(dst, src, PAGE_SIZE);
#ifdef CONFIG_X86
- kunmap_atomic(dst, KM_USER0);
+ kunmap_atomic(dst);
#else
if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
vunmap(dst);
@@ -206,7 +206,7 @@ static int ttm_copy_ttm_io_page(struct t
dst = (void *)((unsigned long)dst + (page << PAGE_SHIFT));
#ifdef CONFIG_X86
- src = kmap_atomic_prot(s, KM_USER0, prot);
+ src = kmap_atomic_prot(s, prot);
#else
if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
src = vmap(&s, 1, 0, prot);
@@ -219,7 +219,7 @@ static int ttm_copy_ttm_io_page(struct t
memcpy_toio(dst, src, PAGE_SIZE);
#ifdef CONFIG_X86
- kunmap_atomic(src, KM_USER0);
+ kunmap_atomic(src);
#else
if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
vunmap(src);
Index: linux-2.6/include/linux/io-mapping.h
===================================================================
--- linux-2.6.orig/include/linux/io-mapping.h
+++ linux-2.6/include/linux/io-mapping.h
@@ -81,8 +81,7 @@ io_mapping_free(struct io_mapping *mappi
/* Atomic map/unmap */
static inline void __iomem *
io_mapping_map_atomic_wc(struct io_mapping *mapping,
- unsigned long offset,
- int slot)
+ unsigned long offset)
{
resource_size_t phys_addr;
unsigned long pfn;
@@ -90,13 +89,13 @@ io_mapping_map_atomic_wc(struct io_mappi
BUG_ON(offset >= mapping->size);
phys_addr = mapping->base + offset;
pfn = (unsigned long) (phys_addr >> PAGE_SHIFT);
- return iomap_atomic_prot_pfn(pfn, slot, mapping->prot);
+ return iomap_atomic_prot_pfn(pfn, mapping->prot);
}
static inline void
-io_mapping_unmap_atomic(void __iomem *vaddr, int slot)
+io_mapping_unmap_atomic(void __iomem *vaddr)
{
- iounmap_atomic(vaddr, slot);
+ iounmap_atomic(vaddr);
}
static inline void __iomem *
@@ -137,14 +136,13 @@ io_mapping_free(struct io_mapping *mappi
/* Atomic map/unmap */
static inline void __iomem *
io_mapping_map_atomic_wc(struct io_mapping *mapping,
- unsigned long offset,
- int slot)
+ unsigned long offset)
{
return ((char __force __iomem *) mapping) + offset;
}
static inline void
-io_mapping_unmap_atomic(void __iomem *vaddr, int slot)
+io_mapping_unmap_atomic(void __iomem *vaddr)
{
}
Index: linux-2.6/usr/src/linux-2.6/drivers/gpu/drm/nouveau/nouveau_bios.c
===================================================================
--- linux-2.6.orig/usr/src/linux-2.6/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ /dev/null
@@ -1,6832 +0,0 @@
-/*
- * Copyright 2005-2006 Erik Waling
- * Copyright 2006 Stephane Marchesin
- * Copyright 2007-2009 Stuart Bennett
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
- * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include "drmP.h"
-#define NV_DEBUG_NOTRACE
-#include "nouveau_drv.h"
-#include "nouveau_hw.h"
-#include "nouveau_encoder.h"
-
-#include <linux/io-mapping.h>
-
-/* these defines are made up */
-#define NV_CIO_CRE_44_HEADA 0x0
-#define NV_CIO_CRE_44_HEADB 0x3
-#define FEATURE_MOBILE 0x10 /* also FEATURE_QUADRO for BMP */
-#define LEGACY_I2C_CRT 0x80
-#define LEGACY_I2C_PANEL 0x81
-#define LEGACY_I2C_TV 0x82
-
-#define EDID1_LEN 128
-
-#define BIOSLOG(sip, fmt, arg...) NV_DEBUG(sip->dev, fmt, ##arg)
-#define LOG_OLD_VALUE(x)
-
-#define ROM16(x) le16_to_cpu(*(uint16_t *)&(x))
-#define ROM32(x) le32_to_cpu(*(uint32_t *)&(x))
-
-struct init_exec {
- bool execute;
- bool repeat;
-};
-
-static bool nv_cksum(const uint8_t *data, unsigned int length)
-{
- /*
- * There's a few checksums in the BIOS, so here's a generic checking
- * function.
- */
- int i;
- uint8_t sum = 0;
-
- for (i = 0; i < length; i++)
- sum += data[i];
-
- if (sum)
- return true;
-
- return false;
-}
-
-static int
-score_vbios(struct drm_device *dev, const uint8_t *data, const bool writeable)
-{
- if (!(data[0] == 0x55 && data[1] == 0xAA)) {
- NV_TRACEWARN(dev, "... BIOS signature not found\n");
- return 0;
- }
-
- if (nv_cksum(data, data[2] * 512)) {
- NV_TRACEWARN(dev, "... BIOS checksum invalid\n");
- /* if a ro image is somewhat bad, it's probably all rubbish */
- return writeable ? 2 : 1;
- } else
- NV_TRACE(dev, "... appears to be valid\n");
-
- return 3;
-}
-
-static void load_vbios_prom(struct drm_device *dev, uint8_t *data)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- uint32_t pci_nv_20, save_pci_nv_20;
- int pcir_ptr;
- int i;
-
- if (dev_priv->card_type >= NV_50)
- pci_nv_20 = 0x88050;
- else
- pci_nv_20 = NV_PBUS_PCI_NV_20;
-
- /* enable ROM access */
- save_pci_nv_20 = nvReadMC(dev, pci_nv_20);
- nvWriteMC(dev, pci_nv_20,
- save_pci_nv_20 & ~NV_PBUS_PCI_NV_20_ROM_SHADOW_ENABLED);
-
- /* bail if no rom signature */
- if (nv_rd08(dev, NV_PROM_OFFSET) != 0x55 ||
- nv_rd08(dev, NV_PROM_OFFSET + 1) != 0xaa)
- goto out;
-
- /* additional check (see note below) - read PCI record header */
- pcir_ptr = nv_rd08(dev, NV_PROM_OFFSET + 0x18) |
- nv_rd08(dev, NV_PROM_OFFSET + 0x19) << 8;
- if (nv_rd08(dev, NV_PROM_OFFSET + pcir_ptr) != 'P' ||
- nv_rd08(dev, NV_PROM_OFFSET + pcir_ptr + 1) != 'C' ||
- nv_rd08(dev, NV_PROM_OFFSET + pcir_ptr + 2) != 'I' ||
- nv_rd08(dev, NV_PROM_OFFSET + pcir_ptr + 3) != 'R')
- goto out;
-
- /* on some 6600GT/6800LE prom reads are messed up. nvclock alleges a
- * a good read may be obtained by waiting or re-reading (cargocult: 5x)
- * each byte. we'll hope pramin has something usable instead
- */
- for (i = 0; i < NV_PROM_SIZE; i++)
- data[i] = nv_rd08(dev, NV_PROM_OFFSET + i);
-
-out:
- /* disable ROM access */
- nvWriteMC(dev, pci_nv_20,
- save_pci_nv_20 | NV_PBUS_PCI_NV_20_ROM_SHADOW_ENABLED);
-}
-
-static void load_vbios_pramin(struct drm_device *dev, uint8_t *data)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- uint32_t old_bar0_pramin = 0;
- int i;
-
- if (dev_priv->card_type >= NV_50) {
- uint32_t vbios_vram = (nv_rd32(dev, 0x619f04) & ~0xff) << 8;
-
- if (!vbios_vram)
- vbios_vram = (nv_rd32(dev, 0x1700) << 16) + 0xf0000;
-
- old_bar0_pramin = nv_rd32(dev, 0x1700);
- nv_wr32(dev, 0x1700, vbios_vram >> 16);
- }
-
- /* bail if no rom signature */
- if (nv_rd08(dev, NV_PRAMIN_OFFSET) != 0x55 ||
- nv_rd08(dev, NV_PRAMIN_OFFSET + 1) != 0xaa)
- goto out;
-
- for (i = 0; i < NV_PROM_SIZE; i++)
- data[i] = nv_rd08(dev, NV_PRAMIN_OFFSET + i);
-
-out:
- if (dev_priv->card_type >= NV_50)
- nv_wr32(dev, 0x1700, old_bar0_pramin);
-}
-
-static void load_vbios_pci(struct drm_device *dev, uint8_t *data)
-{
- void __iomem *rom = NULL;
- size_t rom_len;
- int ret;
-
- ret = pci_enable_rom(dev->pdev);
- if (ret)
- return;
-
- rom = pci_map_rom(dev->pdev, &rom_len);
- if (!rom)
- goto out;
- memcpy_fromio(data, rom, rom_len);
- pci_unmap_rom(dev->pdev, rom);
-
-out:
- pci_disable_rom(dev->pdev);
-}
-
-static void load_vbios_acpi(struct drm_device *dev, uint8_t *data)
-{
- int i;
- int ret;
- int size = 64 * 1024;
-
- if (!nouveau_acpi_rom_supported(dev->pdev))
- return;
-
- for (i = 0; i < (size / ROM_BIOS_PAGE); i++) {
- ret = nouveau_acpi_get_bios_chunk(data,
- (i * ROM_BIOS_PAGE),
- ROM_BIOS_PAGE);
- if (ret <= 0)
- break;
- }
- return;
-}
-
-struct methods {
- const char desc[8];
- void (*loadbios)(struct drm_device *, uint8_t *);
- const bool rw;
-};
-
-static struct methods shadow_methods[] = {
- { "PRAMIN", load_vbios_pramin, true },
- { "PROM", load_vbios_prom, false },
- { "PCIROM", load_vbios_pci, true },
- { "ACPI", load_vbios_acpi, true },
-};
-#define NUM_SHADOW_METHODS ARRAY_SIZE(shadow_methods)
-
-static bool NVShadowVBIOS(struct drm_device *dev, uint8_t *data)
-{
- struct methods *methods = shadow_methods;
- int testscore = 3;
- int scores[NUM_SHADOW_METHODS], i;
-
- if (nouveau_vbios) {
- for (i = 0; i < NUM_SHADOW_METHODS; i++)
- if (!strcasecmp(nouveau_vbios, methods[i].desc))
- break;
-
- if (i < NUM_SHADOW_METHODS) {
- NV_INFO(dev, "Attempting to use BIOS image from %s\n",
- methods[i].desc);
-
- methods[i].loadbios(dev, data);
- if (score_vbios(dev, data, methods[i].rw))
- return true;
- }
-
- NV_ERROR(dev, "VBIOS source \'%s\' invalid\n", nouveau_vbios);
- }
-
- for (i = 0; i < NUM_SHADOW_METHODS; i++) {
- NV_TRACE(dev, "Attempting to load BIOS image from %s\n",
- methods[i].desc);
- data[0] = data[1] = 0; /* avoid reuse of previous image */
- methods[i].loadbios(dev, data);
- scores[i] = score_vbios(dev, data, methods[i].rw);
- if (scores[i] == testscore)
- return true;
- }
-
- while (--testscore > 0) {
- for (i = 0; i < NUM_SHADOW_METHODS; i++) {
- if (scores[i] == testscore) {
- NV_TRACE(dev, "Using BIOS image from %s\n",
- methods[i].desc);
- methods[i].loadbios(dev, data);
- return true;
- }
- }
- }
-
- NV_ERROR(dev, "No valid BIOS image found\n");
- return false;
-}
-
-struct init_tbl_entry {
- char *name;
- uint8_t id;
- /* Return:
- * > 0: success, length of opcode
- * 0: success, but abort further parsing of table (INIT_DONE etc)
- * < 0: failure, table parsing will be aborted
- */
- int (*handler)(struct nvbios *, uint16_t, struct init_exec *);
-};
-
-struct bit_entry {
- uint8_t id[2];
- uint16_t length;
- uint16_t offset;
-};
-
-static int parse_init_table(struct nvbios *, unsigned int, struct init_exec *);
-
-#define MACRO_INDEX_SIZE 2
-#define MACRO_SIZE 8
-#define CONDITION_SIZE 12
-#define IO_FLAG_CONDITION_SIZE 9
-#define IO_CONDITION_SIZE 5
-#define MEM_INIT_SIZE 66
-
-static void still_alive(void)
-{
-#if 0
- sync();
- msleep(2);
-#endif
-}
-
-static uint32_t
-munge_reg(struct nvbios *bios, uint32_t reg)
-{
- struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
- struct dcb_entry *dcbent = bios->display.output;
-
- if (dev_priv->card_type < NV_50)
- return reg;
-
- if (reg & 0x40000000) {
- BUG_ON(!dcbent);
-
- reg += (ffs(dcbent->or) - 1) * 0x800;
- if ((reg & 0x20000000) && !(dcbent->sorconf.link & 1))
- reg += 0x00000080;
- }
-
- reg &= ~0x60000000;
- return reg;
-}
-
-static int
-valid_reg(struct nvbios *bios, uint32_t reg)
-{
- struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
- struct drm_device *dev = bios->dev;
-
- /* C51 has misaligned regs on purpose. Marvellous */
- if (reg & 0x2 ||
- (reg & 0x1 && dev_priv->vbios.chip_version != 0x51))
- NV_ERROR(dev, "======= misaligned reg 0x%08X =======\n", reg);
-
- /* warn on C51 regs that haven't been verified accessible in tracing */
- if (reg & 0x1 && dev_priv->vbios.chip_version == 0x51 &&
- reg != 0x130d && reg != 0x1311 && reg != 0x60081d)
- NV_WARN(dev, "=== C51 misaligned reg 0x%08X not verified ===\n",
- reg);
-
- if (reg >= (8*1024*1024)) {
- NV_ERROR(dev, "=== reg 0x%08x out of mapped bounds ===\n", reg);
- return 0;
- }
-
- return 1;
-}
-
-static bool
-valid_idx_port(struct nvbios *bios, uint16_t port)
-{
- struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
- struct drm_device *dev = bios->dev;
-
- /*
- * If adding more ports here, the read/write functions below will need
- * updating so that the correct mmio range (PRMCIO, PRMDIO, PRMVIO) is
- * used for the port in question
- */
- if (dev_priv->card_type < NV_50) {
- if (port == NV_CIO_CRX__COLOR)
- return true;
- if (port == NV_VIO_SRX)
- return true;
- } else {
- if (port == NV_CIO_CRX__COLOR)
- return true;
- }
-
- NV_ERROR(dev, "========== unknown indexed io port 0x%04X ==========\n",
- port);
-
- return false;
-}
-
-static bool
-valid_port(struct nvbios *bios, uint16_t port)
-{
- struct drm_device *dev = bios->dev;
-
- /*
- * If adding more ports here, the read/write functions below will need
- * updating so that the correct mmio range (PRMCIO, PRMDIO, PRMVIO) is
- * used for the port in question
- */
- if (port == NV_VIO_VSE2)
- return true;
-
- NV_ERROR(dev, "========== unknown io port 0x%04X ==========\n", port);
-
- return false;
-}
-
-static uint32_t
-bios_rd32(struct nvbios *bios, uint32_t reg)
-{
- uint32_t data;
-
- reg = munge_reg(bios, reg);
- if (!valid_reg(bios, reg))
- return 0;
-
- /*
- * C51 sometimes uses regs with bit0 set in the address. For these
- * cases there should exist a translation in a BIOS table to an IO
- * port address which the BIOS uses for accessing the reg
- *
- * These only seem to appear for the power control regs to a flat panel,
- * and the GPIO regs at 0x60081*. In C51 mmio traces the normal regs
- * for 0x1308 and 0x1310 are used - hence the mask below. An S3
- * suspend-resume mmio trace from a C51 will be required to see if this
- * is true for the power microcode in 0x14.., or whether the direct IO
- * port access method is needed
- */
- if (reg & 0x1)
- reg &= ~0x1;
-
- data = nv_rd32(bios->dev, reg);
-
- BIOSLOG(bios, " Read: Reg: 0x%08X, Data: 0x%08X\n", reg, data);
-
- return data;
-}
-
-static void
-bios_wr32(struct nvbios *bios, uint32_t reg, uint32_t data)
-{
- struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
-
- reg = munge_reg(bios, reg);
- if (!valid_reg(bios, reg))
- return;
-
- /* see note in bios_rd32 */
- if (reg & 0x1)
- reg &= 0xfffffffe;
-
- LOG_OLD_VALUE(bios_rd32(bios, reg));
- BIOSLOG(bios, " Write: Reg: 0x%08X, Data: 0x%08X\n", reg, data);
-
- if (dev_priv->vbios.execute) {
- still_alive();
- nv_wr32(bios->dev, reg, data);
- }
-}
-
-static uint8_t
-bios_idxprt_rd(struct nvbios *bios, uint16_t port, uint8_t index)
-{
- struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
- struct drm_device *dev = bios->dev;
- uint8_t data;
-
- if (!valid_idx_port(bios, port))
- return 0;
-
- if (dev_priv->card_type < NV_50) {
- if (port == NV_VIO_SRX)
- data = NVReadVgaSeq(dev, bios->state.crtchead, index);
- else /* assume NV_CIO_CRX__COLOR */
- data = NVReadVgaCrtc(dev, bios->state.crtchead, index);
- } else {
- uint32_t data32;
-
- data32 = bios_rd32(bios, NV50_PDISPLAY_VGACRTC(index & ~3));
- data = (data32 >> ((index & 3) << 3)) & 0xff;
- }
-
- BIOSLOG(bios, " Indexed IO read: Port: 0x%04X, Index: 0x%02X, "
- "Head: 0x%02X, Data: 0x%02X\n",
- port, index, bios->state.crtchead, data);
- return data;
-}
-
-static void
-bios_idxprt_wr(struct nvbios *bios, uint16_t port, uint8_t index, uint8_t data)
-{
- struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
- struct drm_device *dev = bios->dev;
-
- if (!valid_idx_port(bios, port))
- return;
-
- /*
- * The current head is maintained in the nvbios member state.crtchead.
- * We trap changes to CR44 and update the head variable and hence the
- * register set written.
- * As CR44 only exists on CRTC0, we update crtchead to head0 in advance
- * of the write, and to head1 after the write
- */
- if (port == NV_CIO_CRX__COLOR && index == NV_CIO_CRE_44 &&
- data != NV_CIO_CRE_44_HEADB)
- bios->state.crtchead = 0;
-
- LOG_OLD_VALUE(bios_idxprt_rd(bios, port, index));
- BIOSLOG(bios, " Indexed IO write: Port: 0x%04X, Index: 0x%02X, "
- "Head: 0x%02X, Data: 0x%02X\n",
- port, index, bios->state.crtchead, data);
-
- if (bios->execute && dev_priv->card_type < NV_50) {
- still_alive();
- if (port == NV_VIO_SRX)
- NVWriteVgaSeq(dev, bios->state.crtchead, index, data);
- else /* assume NV_CIO_CRX__COLOR */
- NVWriteVgaCrtc(dev, bios->state.crtchead, index, data);
- } else
- if (bios->execute) {
- uint32_t data32, shift = (index & 3) << 3;
-
- still_alive();
-
- data32 = bios_rd32(bios, NV50_PDISPLAY_VGACRTC(index & ~3));
- data32 &= ~(0xff << shift);
- data32 |= (data << shift);
- bios_wr32(bios, NV50_PDISPLAY_VGACRTC(index & ~3), data32);
- }
-
- if (port == NV_CIO_CRX__COLOR &&
- index == NV_CIO_CRE_44 && data == NV_CIO_CRE_44_HEADB)
- bios->state.crtchead = 1;
-}
-
-static uint8_t
-bios_port_rd(struct nvbios *bios, uint16_t port)
-{
- uint8_t data, head = bios->state.crtchead;
-
- if (!valid_port(bios, port))
- return 0;
-
- data = NVReadPRMVIO(bios->dev, head, NV_PRMVIO0_OFFSET + port);
-
- BIOSLOG(bios, " IO read: Port: 0x%04X, Head: 0x%02X, Data: 0x%02X\n",
- port, head, data);
-
- return data;
-}
-
-static void
-bios_port_wr(struct nvbios *bios, uint16_t port, uint8_t data)
-{
- int head = bios->state.crtchead;
-
- if (!valid_port(bios, port))
- return;
-
- LOG_OLD_VALUE(bios_port_rd(bios, port));
- BIOSLOG(bios, " IO write: Port: 0x%04X, Head: 0x%02X, Data: 0x%02X\n",
- port, head, data);
-
- if (!bios->execute)
- return;
-
- still_alive();
- NVWritePRMVIO(bios->dev, head, NV_PRMVIO0_OFFSET + port, data);
-}
-
-static bool
-io_flag_condition_met(struct nvbios *bios, uint16_t offset, uint8_t cond)
-{
- /*
- * The IO flag condition entry has 2 bytes for the CRTC port; 1 byte
- * for the CRTC index; 1 byte for the mask to apply to the value
- * retrieved from the CRTC; 1 byte for the shift right to apply to the
- * masked CRTC value; 2 bytes for the offset to the flag array, to
- * which the shifted value is added; 1 byte for the mask applied to the
- * value read from the flag array; and 1 byte for the value to compare
- * against the masked byte from the flag table.
- */
-
- uint16_t condptr = bios->io_flag_condition_tbl_ptr + cond * IO_FLAG_CONDITION_SIZE;
- uint16_t crtcport = ROM16(bios->data[condptr]);
- uint8_t crtcindex = bios->data[condptr + 2];
- uint8_t mask = bios->data[condptr + 3];
- uint8_t shift = bios->data[condptr + 4];
- uint16_t flagarray = ROM16(bios->data[condptr + 5]);
- uint8_t flagarraymask = bios->data[condptr + 7];
- uint8_t cmpval = bios->data[condptr + 8];
- uint8_t data;
-
- BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, "
- "Shift: 0x%02X, FlagArray: 0x%04X, FAMask: 0x%02X, "
- "Cmpval: 0x%02X\n",
- offset, crtcport, crtcindex, mask, shift, flagarray, flagarraymask, cmpval);
-
- data = bios_idxprt_rd(bios, crtcport, crtcindex);
-
- data = bios->data[flagarray + ((data & mask) >> shift)];
- data &= flagarraymask;
-
- BIOSLOG(bios, "0x%04X: Checking if 0x%02X equals 0x%02X\n",
- offset, data, cmpval);
-
- return (data == cmpval);
-}
-
-static bool
-bios_condition_met(struct nvbios *bios, uint16_t offset, uint8_t cond)
-{
- /*
- * The condition table entry has 4 bytes for the address of the
- * register to check, 4 bytes for a mask to apply to the register and
- * 4 for a test comparison value
- */
-
- uint16_t condptr = bios->condition_tbl_ptr + cond * CONDITION_SIZE;
- uint32_t reg = ROM32(bios->data[condptr]);
- uint32_t mask = ROM32(bios->data[condptr + 4]);
- uint32_t cmpval = ROM32(bios->data[condptr + 8]);
- uint32_t data;
-
- BIOSLOG(bios, "0x%04X: Cond: 0x%02X, Reg: 0x%08X, Mask: 0x%08X\n",
- offset, cond, reg, mask);
-
- data = bios_rd32(bios, reg) & mask;
-
- BIOSLOG(bios, "0x%04X: Checking if 0x%08X equals 0x%08X\n",
- offset, data, cmpval);
-
- return (data == cmpval);
-}
-
-static bool
-io_condition_met(struct nvbios *bios, uint16_t offset, uint8_t cond)
-{
- /*
- * The IO condition entry has 2 bytes for the IO port address; 1 byte
- * for the index to write to io_port; 1 byte for the mask to apply to
- * the byte read from io_port+1; and 1 byte for the value to compare
- * against the masked byte.
- */
-
- uint16_t condptr = bios->io_condition_tbl_ptr + cond * IO_CONDITION_SIZE;
- uint16_t io_port = ROM16(bios->data[condptr]);
- uint8_t port_index = bios->data[condptr + 2];
- uint8_t mask = bios->data[condptr + 3];
- uint8_t cmpval = bios->data[condptr + 4];
-
- uint8_t data = bios_idxprt_rd(bios, io_port, port_index) & mask;
-
- BIOSLOG(bios, "0x%04X: Checking if 0x%02X equals 0x%02X\n",
- offset, data, cmpval);
-
- return (data == cmpval);
-}
-
-static int
-nv50_pll_set(struct drm_device *dev, uint32_t reg, uint32_t clk)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- uint32_t reg0 = nv_rd32(dev, reg + 0);
- uint32_t reg1 = nv_rd32(dev, reg + 4);
- struct nouveau_pll_vals pll;
- struct pll_lims pll_limits;
- int ret;
-
- ret = get_pll_limits(dev, reg, &pll_limits);
- if (ret)
- return ret;
-
- clk = nouveau_calc_pll_mnp(dev, &pll_limits, clk, &pll);
- if (!clk)
- return -ERANGE;
-
- reg0 = (reg0 & 0xfff8ffff) | (pll.log2P << 16);
- reg1 = (reg1 & 0xffff0000) | (pll.N1 << 8) | pll.M1;
-
- if (dev_priv->vbios.execute) {
- still_alive();
- nv_wr32(dev, reg + 4, reg1);
- nv_wr32(dev, reg + 0, reg0);
- }
-
- return 0;
-}
-
-static int
-setPLL(struct nvbios *bios, uint32_t reg, uint32_t clk)
-{
- struct drm_device *dev = bios->dev;
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- /* clk in kHz */
- struct pll_lims pll_lim;
- struct nouveau_pll_vals pllvals;
- int ret;
-
- if (dev_priv->card_type >= NV_50)
- return nv50_pll_set(dev, reg, clk);
-
- /* high regs (such as in the mac g5 table) are not -= 4 */
- ret = get_pll_limits(dev, reg > 0x405c ? reg : reg - 4, &pll_lim);
- if (ret)
- return ret;
-
- clk = nouveau_calc_pll_mnp(dev, &pll_lim, clk, &pllvals);
- if (!clk)
- return -ERANGE;
-
- if (bios->execute) {
- still_alive();
- nouveau_hw_setpll(dev, reg, &pllvals);
- }
-
- return 0;
-}
-
-static int dcb_entry_idx_from_crtchead(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
-
- /*
- * For the results of this function to be correct, CR44 must have been
- * set (using bios_idxprt_wr to set crtchead), CR58 set for CR57 = 0,
- * and the DCB table parsed, before the script calling the function is
- * run. run_digital_op_script is example of how to do such setup
- */
-
- uint8_t dcb_entry = NVReadVgaCrtc5758(dev, bios->state.crtchead, 0);
-
- if (dcb_entry > bios->dcb.entries) {
- NV_ERROR(dev, "CR58 doesn't have a valid DCB entry currently "
- "(%02X)\n", dcb_entry);
- dcb_entry = 0x7f; /* unused / invalid marker */
- }
-
- return dcb_entry;
-}
-
-static int
-read_dcb_i2c_entry(struct drm_device *dev, int dcb_version, uint8_t *i2ctable, int index, struct dcb_i2c_entry *i2c)
-{
- uint8_t dcb_i2c_ver = dcb_version, headerlen = 0, entry_len = 4;
- int i2c_entries = DCB_MAX_NUM_I2C_ENTRIES;
- int recordoffset = 0, rdofs = 1, wrofs = 0;
- uint8_t port_type = 0;
-
- if (!i2ctable)
- return -EINVAL;
-
- if (dcb_version >= 0x30) {
- if (i2ctable[0] != dcb_version) /* necessary? */
- NV_WARN(dev,
- "DCB I2C table version mismatch (%02X vs %02X)\n",
- i2ctable[0], dcb_version);
- dcb_i2c_ver = i2ctable[0];
- headerlen = i2ctable[1];
- if (i2ctable[2] <= DCB_MAX_NUM_I2C_ENTRIES)
- i2c_entries = i2ctable[2];
- else
- NV_WARN(dev,
- "DCB I2C table has more entries than indexable "
- "(%d entries, max %d)\n", i2ctable[2],
- DCB_MAX_NUM_I2C_ENTRIES);
- entry_len = i2ctable[3];
- /* [4] is i2c_default_indices, read in parse_dcb_table() */
- }
- /*
- * It's your own fault if you call this function on a DCB 1.1 BIOS --
- * the test below is for DCB 1.2
- */
- if (dcb_version < 0x14) {
- recordoffset = 2;
- rdofs = 0;
- wrofs = 1;
- }
-
- if (index == 0xf)
- return 0;
- if (index >= i2c_entries) {
- NV_ERROR(dev, "DCB I2C index too big (%d >= %d)\n",
- index, i2ctable[2]);
- return -ENOENT;
- }
- if (i2ctable[headerlen + entry_len * index + 3] == 0xff) {
- NV_ERROR(dev, "DCB I2C entry invalid\n");
- return -EINVAL;
- }
-
- if (dcb_i2c_ver >= 0x30) {
- port_type = i2ctable[headerlen + recordoffset + 3 + entry_len * index];
-
- /*
- * Fixup for chips using same address offset for read and
- * write.
- */
- if (port_type == 4) /* seen on C51 */
- rdofs = wrofs = 1;
- if (port_type >= 5) /* G80+ */
- rdofs = wrofs = 0;
- }
-
- if (dcb_i2c_ver >= 0x40) {
- if (port_type != 5 && port_type != 6)
- NV_WARN(dev, "DCB I2C table has port type %d\n", port_type);
-
- i2c->entry = ROM32(i2ctable[headerlen + recordoffset + entry_len * index]);
- }
-
- i2c->port_type = port_type;
- i2c->read = i2ctable[headerlen + recordoffset + rdofs + entry_len * index];
- i2c->write = i2ctable[headerlen + recordoffset + wrofs + entry_len * index];
-
- return 0;
-}
-
-static struct nouveau_i2c_chan *
-init_i2c_device_find(struct drm_device *dev, int i2c_index)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct dcb_table *dcb = &dev_priv->vbios.dcb;
-
- if (i2c_index == 0xff) {
- /* note: dcb_entry_idx_from_crtchead needs pre-script set-up */
- int idx = dcb_entry_idx_from_crtchead(dev), shift = 0;
- int default_indices = dcb->i2c_default_indices;
-
- if (idx != 0x7f && dcb->entry[idx].i2c_upper_default)
- shift = 4;
-
- i2c_index = (default_indices >> shift) & 0xf;
- }
- if (i2c_index == 0x80) /* g80+ */
- i2c_index = dcb->i2c_default_indices & 0xf;
- else
- if (i2c_index == 0x81)
- i2c_index = (dcb->i2c_default_indices & 0xf0) >> 4;
-
- if (i2c_index >= DCB_MAX_NUM_I2C_ENTRIES) {
- NV_ERROR(dev, "invalid i2c_index 0x%x\n", i2c_index);
- return NULL;
- }
-
- /* Make sure i2c table entry has been parsed, it may not
- * have been if this is a bus not referenced by a DCB encoder
- */
- read_dcb_i2c_entry(dev, dcb->version, dcb->i2c_table,
- i2c_index, &dcb->i2c[i2c_index]);
-
- return nouveau_i2c_find(dev, i2c_index);
-}
-
-static uint32_t
-get_tmds_index_reg(struct drm_device *dev, uint8_t mlv)
-{
- /*
- * For mlv < 0x80, it is an index into a table of TMDS base addresses.
- * For mlv == 0x80 use the "or" value of the dcb_entry indexed by
- * CR58 for CR57 = 0 to index a table of offsets to the basic
- * 0x6808b0 address.
- * For mlv == 0x81 use the "or" value of the dcb_entry indexed by
- * CR58 for CR57 = 0 to index a table of offsets to the basic
- * 0x6808b0 address, and then flip the offset by 8.
- */
-
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- const int pramdac_offset[13] = {
- 0, 0, 0x8, 0, 0x2000, 0, 0, 0, 0x2008, 0, 0, 0, 0x2000 };
- const uint32_t pramdac_table[4] = {
- 0x6808b0, 0x6808b8, 0x6828b0, 0x6828b8 };
-
- if (mlv >= 0x80) {
- int dcb_entry, dacoffset;
-
- /* note: dcb_entry_idx_from_crtchead needs pre-script set-up */
- dcb_entry = dcb_entry_idx_from_crtchead(dev);
- if (dcb_entry == 0x7f)
- return 0;
- dacoffset = pramdac_offset[bios->dcb.entry[dcb_entry].or];
- if (mlv == 0x81)
- dacoffset ^= 8;
- return 0x6808b0 + dacoffset;
- } else {
- if (mlv >= ARRAY_SIZE(pramdac_table)) {
- NV_ERROR(dev, "Magic Lookup Value too big (%02X)\n",
- mlv);
- return 0;
- }
- return pramdac_table[mlv];
- }
-}
-
-static int
-init_io_restrict_prog(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_IO_RESTRICT_PROG opcode: 0x32 ('2')
- *
- * offset (8 bit): opcode
- * offset + 1 (16 bit): CRTC port
- * offset + 3 (8 bit): CRTC index
- * offset + 4 (8 bit): mask
- * offset + 5 (8 bit): shift
- * offset + 6 (8 bit): count
- * offset + 7 (32 bit): register
- * offset + 11 (32 bit): configuration 1
- * ...
- *
- * Starting at offset + 11 there are "count" 32 bit values.
- * To find out which value to use read index "CRTC index" on "CRTC
- * port", AND this value with "mask" and then bit shift right "shift"
- * bits. Read the appropriate value using this index and write to
- * "register"
- */
-
- uint16_t crtcport = ROM16(bios->data[offset + 1]);
- uint8_t crtcindex = bios->data[offset + 3];
- uint8_t mask = bios->data[offset + 4];
- uint8_t shift = bios->data[offset + 5];
- uint8_t count = bios->data[offset + 6];
- uint32_t reg = ROM32(bios->data[offset + 7]);
- uint8_t config;
- uint32_t configval;
- int len = 11 + count * 4;
-
- if (!iexec->execute)
- return len;
-
- BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, "
- "Shift: 0x%02X, Count: 0x%02X, Reg: 0x%08X\n",
- offset, crtcport, crtcindex, mask, shift, count, reg);
-
- config = (bios_idxprt_rd(bios, crtcport, crtcindex) & mask) >> shift;
- if (config > count) {
- NV_ERROR(bios->dev,
- "0x%04X: Config 0x%02X exceeds maximal bound 0x%02X\n",
- offset, config, count);
- return len;
- }
-
- configval = ROM32(bios->data[offset + 11 + config * 4]);
-
- BIOSLOG(bios, "0x%04X: Writing config %02X\n", offset, config);
-
- bios_wr32(bios, reg, configval);
-
- return len;
-}
-
-static int
-init_repeat(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_REPEAT opcode: 0x33 ('3')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): count
- *
- * Execute script following this opcode up to INIT_REPEAT_END
- * "count" times
- */
-
- uint8_t count = bios->data[offset + 1];
- uint8_t i;
-
- /* no iexec->execute check by design */
-
- BIOSLOG(bios, "0x%04X: Repeating following segment %d times\n",
- offset, count);
-
- iexec->repeat = true;
-
- /*
- * count - 1, as the script block will execute once when we leave this
- * opcode -- this is compatible with bios behaviour as:
- * a) the block is always executed at least once, even if count == 0
- * b) the bios interpreter skips to the op following INIT_END_REPEAT,
- * while we don't
- */
- for (i = 0; i < count - 1; i++)
- parse_init_table(bios, offset + 2, iexec);
-
- iexec->repeat = false;
-
- return 2;
-}
-
-static int
-init_io_restrict_pll(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_IO_RESTRICT_PLL opcode: 0x34 ('4')
- *
- * offset (8 bit): opcode
- * offset + 1 (16 bit): CRTC port
- * offset + 3 (8 bit): CRTC index
- * offset + 4 (8 bit): mask
- * offset + 5 (8 bit): shift
- * offset + 6 (8 bit): IO flag condition index
- * offset + 7 (8 bit): count
- * offset + 8 (32 bit): register
- * offset + 12 (16 bit): frequency 1
- * ...
- *
- * Starting at offset + 12 there are "count" 16 bit frequencies (10kHz).
- * Set PLL register "register" to coefficients for frequency n,
- * selected by reading index "CRTC index" of "CRTC port" ANDed with
- * "mask" and shifted right by "shift".
- *
- * If "IO flag condition index" > 0, and condition met, double
- * frequency before setting it.
- */
-
- uint16_t crtcport = ROM16(bios->data[offset + 1]);
- uint8_t crtcindex = bios->data[offset + 3];
- uint8_t mask = bios->data[offset + 4];
- uint8_t shift = bios->data[offset + 5];
- int8_t io_flag_condition_idx = bios->data[offset + 6];
- uint8_t count = bios->data[offset + 7];
- uint32_t reg = ROM32(bios->data[offset + 8]);
- uint8_t config;
- uint16_t freq;
- int len = 12 + count * 2;
-
- if (!iexec->execute)
- return len;
-
- BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, "
- "Shift: 0x%02X, IO Flag Condition: 0x%02X, "
- "Count: 0x%02X, Reg: 0x%08X\n",
- offset, crtcport, crtcindex, mask, shift,
- io_flag_condition_idx, count, reg);
-
- config = (bios_idxprt_rd(bios, crtcport, crtcindex) & mask) >> shift;
- if (config > count) {
- NV_ERROR(bios->dev,
- "0x%04X: Config 0x%02X exceeds maximal bound 0x%02X\n",
- offset, config, count);
- return len;
- }
-
- freq = ROM16(bios->data[offset + 12 + config * 2]);
-
- if (io_flag_condition_idx > 0) {
- if (io_flag_condition_met(bios, offset, io_flag_condition_idx)) {
- BIOSLOG(bios, "0x%04X: Condition fulfilled -- "
- "frequency doubled\n", offset);
- freq *= 2;
- } else
- BIOSLOG(bios, "0x%04X: Condition not fulfilled -- "
- "frequency unchanged\n", offset);
- }
-
- BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Config: 0x%02X, Freq: %d0kHz\n",
- offset, reg, config, freq);
-
- setPLL(bios, reg, freq * 10);
-
- return len;
-}
-
-static int
-init_end_repeat(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_END_REPEAT opcode: 0x36 ('6')
- *
- * offset (8 bit): opcode
- *
- * Marks the end of the block for INIT_REPEAT to repeat
- */
-
- /* no iexec->execute check by design */
-
- /*
- * iexec->repeat flag necessary to go past INIT_END_REPEAT opcode when
- * we're not in repeat mode
- */
- if (iexec->repeat)
- return 0;
-
- return 1;
-}
-
-static int
-init_copy(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_COPY opcode: 0x37 ('7')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): register
- * offset + 5 (8 bit): shift
- * offset + 6 (8 bit): srcmask
- * offset + 7 (16 bit): CRTC port
- * offset + 9 (8 bit): CRTC index
- * offset + 10 (8 bit): mask
- *
- * Read index "CRTC index" on "CRTC port", AND with "mask", OR with
- * (REGVAL("register") >> "shift" & "srcmask") and write-back to CRTC
- * port
- */
-
- uint32_t reg = ROM32(bios->data[offset + 1]);
- uint8_t shift = bios->data[offset + 5];
- uint8_t srcmask = bios->data[offset + 6];
- uint16_t crtcport = ROM16(bios->data[offset + 7]);
- uint8_t crtcindex = bios->data[offset + 9];
- uint8_t mask = bios->data[offset + 10];
- uint32_t data;
- uint8_t crtcdata;
-
- if (!iexec->execute)
- return 11;
-
- BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Shift: 0x%02X, SrcMask: 0x%02X, "
- "Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X\n",
- offset, reg, shift, srcmask, crtcport, crtcindex, mask);
-
- data = bios_rd32(bios, reg);
-
- if (shift < 0x80)
- data >>= shift;
- else
- data <<= (0x100 - shift);
-
- data &= srcmask;
-
- crtcdata = bios_idxprt_rd(bios, crtcport, crtcindex) & mask;
- crtcdata |= (uint8_t)data;
- bios_idxprt_wr(bios, crtcport, crtcindex, crtcdata);
-
- return 11;
-}
-
-static int
-init_not(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_NOT opcode: 0x38 ('8')
- *
- * offset (8 bit): opcode
- *
- * Invert the current execute / no-execute condition (i.e. "else")
- */
- if (iexec->execute)
- BIOSLOG(bios, "0x%04X: ------ Skipping following commands ------\n", offset);
- else
- BIOSLOG(bios, "0x%04X: ------ Executing following commands ------\n", offset);
-
- iexec->execute = !iexec->execute;
- return 1;
-}
-
-static int
-init_io_flag_condition(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_IO_FLAG_CONDITION opcode: 0x39 ('9')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): condition number
- *
- * Check condition "condition number" in the IO flag condition table.
- * If condition not met skip subsequent opcodes until condition is
- * inverted (INIT_NOT), or we hit INIT_RESUME
- */
-
- uint8_t cond = bios->data[offset + 1];
-
- if (!iexec->execute)
- return 2;
-
- if (io_flag_condition_met(bios, offset, cond))
- BIOSLOG(bios, "0x%04X: Condition fulfilled -- continuing to execute\n", offset);
- else {
- BIOSLOG(bios, "0x%04X: Condition not fulfilled -- skipping following commands\n", offset);
- iexec->execute = false;
- }
-
- return 2;
-}
-
-static int
-init_dp_condition(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_DP_CONDITION opcode: 0x3A ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): "sub" opcode
- * offset + 2 (8 bit): unknown
- *
- */
-
- struct bit_displayport_encoder_table *dpe = NULL;
- struct dcb_entry *dcb = bios->display.output;
- struct drm_device *dev = bios->dev;
- uint8_t cond = bios->data[offset + 1];
- int dummy;
-
- BIOSLOG(bios, "0x%04X: subop 0x%02X\n", offset, cond);
-
- if (!iexec->execute)
- return 3;
-
- dpe = nouveau_bios_dp_table(dev, dcb, &dummy);
- if (!dpe) {
- NV_ERROR(dev, "0x%04X: INIT_3A: no encoder table!!\n", offset);
- return 3;
- }
-
- switch (cond) {
- case 0:
- {
- struct dcb_connector_table_entry *ent =
- &bios->dcb.connector.entry[dcb->connector];
-
- if (ent->type != DCB_CONNECTOR_eDP)
- iexec->execute = false;
- }
- break;
- case 1:
- case 2:
- if (!(dpe->unknown & cond))
- iexec->execute = false;
- break;
- case 5:
- {
- struct nouveau_i2c_chan *auxch;
- int ret;
-
- auxch = nouveau_i2c_find(dev, bios->display.output->i2c_index);
- if (!auxch) {
- NV_ERROR(dev, "0x%04X: couldn't get auxch\n", offset);
- return 3;
- }
-
- ret = nouveau_dp_auxch(auxch, 9, 0xd, &cond, 1);
- if (ret) {
- NV_ERROR(dev, "0x%04X: auxch rd fail: %d\n", offset, ret);
- return 3;
- }
-
- if (cond & 1)
- iexec->execute = false;
- }
- break;
- default:
- NV_WARN(dev, "0x%04X: unknown INIT_3A op: %d\n", offset, cond);
- break;
- }
-
- if (iexec->execute)
- BIOSLOG(bios, "0x%04X: continuing to execute\n", offset);
- else
- BIOSLOG(bios, "0x%04X: skipping following commands\n", offset);
-
- return 3;
-}
-
-static int
-init_op_3b(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_3B opcode: 0x3B ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): crtc index
- *
- */
-
- uint8_t or = ffs(bios->display.output->or) - 1;
- uint8_t index = bios->data[offset + 1];
- uint8_t data;
-
- if (!iexec->execute)
- return 2;
-
- data = bios_idxprt_rd(bios, 0x3d4, index);
- bios_idxprt_wr(bios, 0x3d4, index, data & ~(1 << or));
- return 2;
-}
-
-static int
-init_op_3c(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_3C opcode: 0x3C ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): crtc index
- *
- */
-
- uint8_t or = ffs(bios->display.output->or) - 1;
- uint8_t index = bios->data[offset + 1];
- uint8_t data;
-
- if (!iexec->execute)
- return 2;
-
- data = bios_idxprt_rd(bios, 0x3d4, index);
- bios_idxprt_wr(bios, 0x3d4, index, data | (1 << or));
- return 2;
-}
-
-static int
-init_idx_addr_latched(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_INDEX_ADDRESS_LATCHED opcode: 0x49 ('I')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): control register
- * offset + 5 (32 bit): data register
- * offset + 9 (32 bit): mask
- * offset + 13 (32 bit): data
- * offset + 17 (8 bit): count
- * offset + 18 (8 bit): address 1
- * offset + 19 (8 bit): data 1
- * ...
- *
- * For each of "count" address and data pairs, write "data n" to
- * "data register", read the current value of "control register",
- * and write it back once ANDed with "mask", ORed with "data",
- * and ORed with "address n"
- */
-
- uint32_t controlreg = ROM32(bios->data[offset + 1]);
- uint32_t datareg = ROM32(bios->data[offset + 5]);
- uint32_t mask = ROM32(bios->data[offset + 9]);
- uint32_t data = ROM32(bios->data[offset + 13]);
- uint8_t count = bios->data[offset + 17];
- int len = 18 + count * 2;
- uint32_t value;
- int i;
-
- if (!iexec->execute)
- return len;
-
- BIOSLOG(bios, "0x%04X: ControlReg: 0x%08X, DataReg: 0x%08X, "
- "Mask: 0x%08X, Data: 0x%08X, Count: 0x%02X\n",
- offset, controlreg, datareg, mask, data, count);
-
- for (i = 0; i < count; i++) {
- uint8_t instaddress = bios->data[offset + 18 + i * 2];
- uint8_t instdata = bios->data[offset + 19 + i * 2];
-
- BIOSLOG(bios, "0x%04X: Address: 0x%02X, Data: 0x%02X\n",
- offset, instaddress, instdata);
-
- bios_wr32(bios, datareg, instdata);
- value = bios_rd32(bios, controlreg) & mask;
- value |= data;
- value |= instaddress;
- bios_wr32(bios, controlreg, value);
- }
-
- return len;
-}
-
-static int
-init_io_restrict_pll2(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_IO_RESTRICT_PLL2 opcode: 0x4A ('J')
- *
- * offset (8 bit): opcode
- * offset + 1 (16 bit): CRTC port
- * offset + 3 (8 bit): CRTC index
- * offset + 4 (8 bit): mask
- * offset + 5 (8 bit): shift
- * offset + 6 (8 bit): count
- * offset + 7 (32 bit): register
- * offset + 11 (32 bit): frequency 1
- * ...
- *
- * Starting at offset + 11 there are "count" 32 bit frequencies (kHz).
- * Set PLL register "register" to coefficients for frequency n,
- * selected by reading index "CRTC index" of "CRTC port" ANDed with
- * "mask" and shifted right by "shift".
- */
-
- uint16_t crtcport = ROM16(bios->data[offset + 1]);
- uint8_t crtcindex = bios->data[offset + 3];
- uint8_t mask = bios->data[offset + 4];
- uint8_t shift = bios->data[offset + 5];
- uint8_t count = bios->data[offset + 6];
- uint32_t reg = ROM32(bios->data[offset + 7]);
- int len = 11 + count * 4;
- uint8_t config;
- uint32_t freq;
-
- if (!iexec->execute)
- return len;
-
- BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, "
- "Shift: 0x%02X, Count: 0x%02X, Reg: 0x%08X\n",
- offset, crtcport, crtcindex, mask, shift, count, reg);
-
- if (!reg)
- return len;
-
- config = (bios_idxprt_rd(bios, crtcport, crtcindex) & mask) >> shift;
- if (config > count) {
- NV_ERROR(bios->dev,
- "0x%04X: Config 0x%02X exceeds maximal bound 0x%02X\n",
- offset, config, count);
- return len;
- }
-
- freq = ROM32(bios->data[offset + 11 + config * 4]);
-
- BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Config: 0x%02X, Freq: %dkHz\n",
- offset, reg, config, freq);
-
- setPLL(bios, reg, freq);
-
- return len;
-}
-
-static int
-init_pll2(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_PLL2 opcode: 0x4B ('K')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): register
- * offset + 5 (32 bit): freq
- *
- * Set PLL register "register" to coefficients for frequency "freq"
- */
-
- uint32_t reg = ROM32(bios->data[offset + 1]);
- uint32_t freq = ROM32(bios->data[offset + 5]);
-
- if (!iexec->execute)
- return 9;
-
- BIOSLOG(bios, "0x%04X: Reg: 0x%04X, Freq: %dkHz\n",
- offset, reg, freq);
-
- setPLL(bios, reg, freq);
- return 9;
-}
-
-static int
-init_i2c_byte(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_I2C_BYTE opcode: 0x4C ('L')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): DCB I2C table entry index
- * offset + 2 (8 bit): I2C slave address
- * offset + 3 (8 bit): count
- * offset + 4 (8 bit): I2C register 1
- * offset + 5 (8 bit): mask 1
- * offset + 6 (8 bit): data 1
- * ...
- *
- * For each of "count" registers given by "I2C register n" on the device
- * addressed by "I2C slave address" on the I2C bus given by
- * "DCB I2C table entry index", read the register, AND the result with
- * "mask n" and OR it with "data n" before writing it back to the device
- */
-
- struct drm_device *dev = bios->dev;
- uint8_t i2c_index = bios->data[offset + 1];
- uint8_t i2c_address = bios->data[offset + 2] >> 1;
- uint8_t count = bios->data[offset + 3];
- struct nouveau_i2c_chan *chan;
- int len = 4 + count * 3;
- int ret, i;
-
- if (!iexec->execute)
- return len;
-
- BIOSLOG(bios, "0x%04X: DCBI2CIndex: 0x%02X, I2CAddress: 0x%02X, "
- "Count: 0x%02X\n",
- offset, i2c_index, i2c_address, count);
-
- chan = init_i2c_device_find(dev, i2c_index);
- if (!chan) {
- NV_ERROR(dev, "0x%04X: i2c bus not found\n", offset);
- return len;
- }
-
- for (i = 0; i < count; i++) {
- uint8_t reg = bios->data[offset + 4 + i * 3];
- uint8_t mask = bios->data[offset + 5 + i * 3];
- uint8_t data = bios->data[offset + 6 + i * 3];
- union i2c_smbus_data val;
-
- ret = i2c_smbus_xfer(&chan->adapter, i2c_address, 0,
- I2C_SMBUS_READ, reg,
- I2C_SMBUS_BYTE_DATA, &val);
- if (ret < 0) {
- NV_ERROR(dev, "0x%04X: i2c rd fail: %d\n", offset, ret);
- return len;
- }
-
- BIOSLOG(bios, "0x%04X: I2CReg: 0x%02X, Value: 0x%02X, "
- "Mask: 0x%02X, Data: 0x%02X\n",
- offset, reg, val.byte, mask, data);
-
- if (!bios->execute)
- continue;
-
- val.byte &= mask;
- val.byte |= data;
- ret = i2c_smbus_xfer(&chan->adapter, i2c_address, 0,
- I2C_SMBUS_WRITE, reg,
- I2C_SMBUS_BYTE_DATA, &val);
- if (ret < 0) {
- NV_ERROR(dev, "0x%04X: i2c wr fail: %d\n", offset, ret);
- return len;
- }
- }
-
- return len;
-}
-
-static int
-init_zm_i2c_byte(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_ZM_I2C_BYTE opcode: 0x4D ('M')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): DCB I2C table entry index
- * offset + 2 (8 bit): I2C slave address
- * offset + 3 (8 bit): count
- * offset + 4 (8 bit): I2C register 1
- * offset + 5 (8 bit): data 1
- * ...
- *
- * For each of "count" registers given by "I2C register n" on the device
- * addressed by "I2C slave address" on the I2C bus given by
- * "DCB I2C table entry index", set the register to "data n"
- */
-
- struct drm_device *dev = bios->dev;
- uint8_t i2c_index = bios->data[offset + 1];
- uint8_t i2c_address = bios->data[offset + 2] >> 1;
- uint8_t count = bios->data[offset + 3];
- struct nouveau_i2c_chan *chan;
- int len = 4 + count * 2;
- int ret, i;
-
- if (!iexec->execute)
- return len;
-
- BIOSLOG(bios, "0x%04X: DCBI2CIndex: 0x%02X, I2CAddress: 0x%02X, "
- "Count: 0x%02X\n",
- offset, i2c_index, i2c_address, count);
-
- chan = init_i2c_device_find(dev, i2c_index);
- if (!chan) {
- NV_ERROR(dev, "0x%04X: i2c bus not found\n", offset);
- return len;
- }
-
- for (i = 0; i < count; i++) {
- uint8_t reg = bios->data[offset + 4 + i * 2];
- union i2c_smbus_data val;
-
- val.byte = bios->data[offset + 5 + i * 2];
-
- BIOSLOG(bios, "0x%04X: I2CReg: 0x%02X, Data: 0x%02X\n",
- offset, reg, val.byte);
-
- if (!bios->execute)
- continue;
-
- ret = i2c_smbus_xfer(&chan->adapter, i2c_address, 0,
- I2C_SMBUS_WRITE, reg,
- I2C_SMBUS_BYTE_DATA, &val);
- if (ret < 0) {
- NV_ERROR(dev, "0x%04X: i2c wr fail: %d\n", offset, ret);
- return len;
- }
- }
-
- return len;
-}
-
-static int
-init_zm_i2c(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_ZM_I2C opcode: 0x4E ('N')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): DCB I2C table entry index
- * offset + 2 (8 bit): I2C slave address
- * offset + 3 (8 bit): count
- * offset + 4 (8 bit): data 1
- * ...
- *
- * Send "count" bytes ("data n") to the device addressed by "I2C slave
- * address" on the I2C bus given by "DCB I2C table entry index"
- */
-
- struct drm_device *dev = bios->dev;
- uint8_t i2c_index = bios->data[offset + 1];
- uint8_t i2c_address = bios->data[offset + 2] >> 1;
- uint8_t count = bios->data[offset + 3];
- int len = 4 + count;
- struct nouveau_i2c_chan *chan;
- struct i2c_msg msg;
- uint8_t data[256];
- int ret, i;
-
- if (!iexec->execute)
- return len;
-
- BIOSLOG(bios, "0x%04X: DCBI2CIndex: 0x%02X, I2CAddress: 0x%02X, "
- "Count: 0x%02X\n",
- offset, i2c_index, i2c_address, count);
-
- chan = init_i2c_device_find(dev, i2c_index);
- if (!chan) {
- NV_ERROR(dev, "0x%04X: i2c bus not found\n", offset);
- return len;
- }
-
- for (i = 0; i < count; i++) {
- data[i] = bios->data[offset + 4 + i];
-
- BIOSLOG(bios, "0x%04X: Data: 0x%02X\n", offset, data[i]);
- }
-
- if (bios->execute) {
- msg.addr = i2c_address;
- msg.flags = 0;
- msg.len = count;
- msg.buf = data;
- ret = i2c_transfer(&chan->adapter, &msg, 1);
- if (ret != 1) {
- NV_ERROR(dev, "0x%04X: i2c wr fail: %d\n", offset, ret);
- return len;
- }
- }
-
- return len;
-}
-
-static int
-init_tmds(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_TMDS opcode: 0x4F ('O') (non-canon name)
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): magic lookup value
- * offset + 2 (8 bit): TMDS address
- * offset + 3 (8 bit): mask
- * offset + 4 (8 bit): data
- *
- * Read the data reg for TMDS address "TMDS address", AND it with mask
- * and OR it with data, then write it back
- * "magic lookup value" determines which TMDS base address register is
- * used -- see get_tmds_index_reg()
- */
-
- struct drm_device *dev = bios->dev;
- uint8_t mlv = bios->data[offset + 1];
- uint32_t tmdsaddr = bios->data[offset + 2];
- uint8_t mask = bios->data[offset + 3];
- uint8_t data = bios->data[offset + 4];
- uint32_t reg, value;
-
- if (!iexec->execute)
- return 5;
-
- BIOSLOG(bios, "0x%04X: MagicLookupValue: 0x%02X, TMDSAddr: 0x%02X, "
- "Mask: 0x%02X, Data: 0x%02X\n",
- offset, mlv, tmdsaddr, mask, data);
-
- reg = get_tmds_index_reg(bios->dev, mlv);
- if (!reg) {
- NV_ERROR(dev, "0x%04X: no tmds_index_reg\n", offset);
- return 5;
- }
-
- bios_wr32(bios, reg,
- tmdsaddr | NV_PRAMDAC_FP_TMDS_CONTROL_WRITE_DISABLE);
- value = (bios_rd32(bios, reg + 4) & mask) | data;
- bios_wr32(bios, reg + 4, value);
- bios_wr32(bios, reg, tmdsaddr);
-
- return 5;
-}
-
-static int
-init_zm_tmds_group(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_ZM_TMDS_GROUP opcode: 0x50 ('P') (non-canon name)
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): magic lookup value
- * offset + 2 (8 bit): count
- * offset + 3 (8 bit): addr 1
- * offset + 4 (8 bit): data 1
- * ...
- *
- * For each of "count" TMDS address and data pairs write "data n" to
- * "addr n". "magic lookup value" determines which TMDS base address
- * register is used -- see get_tmds_index_reg()
- */
-
- struct drm_device *dev = bios->dev;
- uint8_t mlv = bios->data[offset + 1];
- uint8_t count = bios->data[offset + 2];
- int len = 3 + count * 2;
- uint32_t reg;
- int i;
-
- if (!iexec->execute)
- return len;
-
- BIOSLOG(bios, "0x%04X: MagicLookupValue: 0x%02X, Count: 0x%02X\n",
- offset, mlv, count);
-
- reg = get_tmds_index_reg(bios->dev, mlv);
- if (!reg) {
- NV_ERROR(dev, "0x%04X: no tmds_index_reg\n", offset);
- return len;
- }
-
- for (i = 0; i < count; i++) {
- uint8_t tmdsaddr = bios->data[offset + 3 + i * 2];
- uint8_t tmdsdata = bios->data[offset + 4 + i * 2];
-
- bios_wr32(bios, reg + 4, tmdsdata);
- bios_wr32(bios, reg, tmdsaddr);
- }
-
- return len;
-}
-
-static int
-init_cr_idx_adr_latch(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_CR_INDEX_ADDRESS_LATCHED opcode: 0x51 ('Q')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): CRTC index1
- * offset + 2 (8 bit): CRTC index2
- * offset + 3 (8 bit): baseaddr
- * offset + 4 (8 bit): count
- * offset + 5 (8 bit): data 1
- * ...
- *
- * For each of "count" address and data pairs, write "baseaddr + n" to
- * "CRTC index1" and "data n" to "CRTC index2"
- * Once complete, restore initial value read from "CRTC index1"
- */
- uint8_t crtcindex1 = bios->data[offset + 1];
- uint8_t crtcindex2 = bios->data[offset + 2];
- uint8_t baseaddr = bios->data[offset + 3];
- uint8_t count = bios->data[offset + 4];
- int len = 5 + count;
- uint8_t oldaddr, data;
- int i;
-
- if (!iexec->execute)
- return len;
-
- BIOSLOG(bios, "0x%04X: Index1: 0x%02X, Index2: 0x%02X, "
- "BaseAddr: 0x%02X, Count: 0x%02X\n",
- offset, crtcindex1, crtcindex2, baseaddr, count);
-
- oldaddr = bios_idxprt_rd(bios, NV_CIO_CRX__COLOR, crtcindex1);
-
- for (i = 0; i < count; i++) {
- bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex1,
- baseaddr + i);
- data = bios->data[offset + 5 + i];
- bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex2, data);
- }
-
- bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex1, oldaddr);
-
- return len;
-}
-
-static int
-init_cr(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_CR opcode: 0x52 ('R')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): CRTC index
- * offset + 2 (8 bit): mask
- * offset + 3 (8 bit): data
- *
- * Assign the value of at "CRTC index" ANDed with mask and ORed with
- * data back to "CRTC index"
- */
-
- uint8_t crtcindex = bios->data[offset + 1];
- uint8_t mask = bios->data[offset + 2];
- uint8_t data = bios->data[offset + 3];
- uint8_t value;
-
- if (!iexec->execute)
- return 4;
-
- BIOSLOG(bios, "0x%04X: Index: 0x%02X, Mask: 0x%02X, Data: 0x%02X\n",
- offset, crtcindex, mask, data);
-
- value = bios_idxprt_rd(bios, NV_CIO_CRX__COLOR, crtcindex) & mask;
- value |= data;
- bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex, value);
-
- return 4;
-}
-
-static int
-init_zm_cr(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_ZM_CR opcode: 0x53 ('S')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): CRTC index
- * offset + 2 (8 bit): value
- *
- * Assign "value" to CRTC register with index "CRTC index".
- */
-
- uint8_t crtcindex = ROM32(bios->data[offset + 1]);
- uint8_t data = bios->data[offset + 2];
-
- if (!iexec->execute)
- return 3;
-
- bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex, data);
-
- return 3;
-}
-
-static int
-init_zm_cr_group(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_ZM_CR_GROUP opcode: 0x54 ('T')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): count
- * offset + 2 (8 bit): CRTC index 1
- * offset + 3 (8 bit): value 1
- * ...
- *
- * For "count", assign "value n" to CRTC register with index
- * "CRTC index n".
- */
-
- uint8_t count = bios->data[offset + 1];
- int len = 2 + count * 2;
- int i;
-
- if (!iexec->execute)
- return len;
-
- for (i = 0; i < count; i++)
- init_zm_cr(bios, offset + 2 + 2 * i - 1, iexec);
-
- return len;
-}
-
-static int
-init_condition_time(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_CONDITION_TIME opcode: 0x56 ('V')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): condition number
- * offset + 2 (8 bit): retries / 50
- *
- * Check condition "condition number" in the condition table.
- * Bios code then sleeps for 2ms if the condition is not met, and
- * repeats up to "retries" times, but on one C51 this has proved
- * insufficient. In mmiotraces the driver sleeps for 20ms, so we do
- * this, and bail after "retries" times, or 2s, whichever is less.
- * If still not met after retries, clear execution flag for this table.
- */
-
- uint8_t cond = bios->data[offset + 1];
- uint16_t retries = bios->data[offset + 2] * 50;
- unsigned cnt;
-
- if (!iexec->execute)
- return 3;
-
- if (retries > 100)
- retries = 100;
-
- BIOSLOG(bios, "0x%04X: Condition: 0x%02X, Retries: 0x%02X\n",
- offset, cond, retries);
-
- if (!bios->execute) /* avoid 2s delays when "faking" execution */
- retries = 1;
-
- for (cnt = 0; cnt < retries; cnt++) {
- if (bios_condition_met(bios, offset, cond)) {
- BIOSLOG(bios, "0x%04X: Condition met, continuing\n",
- offset);
- break;
- } else {
- BIOSLOG(bios, "0x%04X: "
- "Condition not met, sleeping for 20ms\n",
- offset);
- msleep(20);
- }
- }
-
- if (!bios_condition_met(bios, offset, cond)) {
- NV_WARN(bios->dev,
- "0x%04X: Condition still not met after %dms, "
- "skipping following opcodes\n", offset, 20 * retries);
- iexec->execute = false;
- }
-
- return 3;
-}
-
-static int
-init_ltime(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_LTIME opcode: 0x57 ('V')
- *
- * offset (8 bit): opcode
- * offset + 1 (16 bit): time
- *
- * Sleep for "time" miliseconds.
- */
-
- unsigned time = ROM16(bios->data[offset + 1]);
-
- if (!iexec->execute)
- return 3;
-
- BIOSLOG(bios, "0x%04X: Sleeping for 0x%04X miliseconds\n",
- offset, time);
-
- msleep(time);
-
- return 3;
-}
-
-static int
-init_zm_reg_sequence(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_ZM_REG_SEQUENCE opcode: 0x58 ('X')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): base register
- * offset + 5 (8 bit): count
- * offset + 6 (32 bit): value 1
- * ...
- *
- * Starting at offset + 6 there are "count" 32 bit values.
- * For "count" iterations set "base register" + 4 * current_iteration
- * to "value current_iteration"
- */
-
- uint32_t basereg = ROM32(bios->data[offset + 1]);
- uint32_t count = bios->data[offset + 5];
- int len = 6 + count * 4;
- int i;
-
- if (!iexec->execute)
- return len;
-
- BIOSLOG(bios, "0x%04X: BaseReg: 0x%08X, Count: 0x%02X\n",
- offset, basereg, count);
-
- for (i = 0; i < count; i++) {
- uint32_t reg = basereg + i * 4;
- uint32_t data = ROM32(bios->data[offset + 6 + i * 4]);
-
- bios_wr32(bios, reg, data);
- }
-
- return len;
-}
-
-static int
-init_sub_direct(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_SUB_DIRECT opcode: 0x5B ('[')
- *
- * offset (8 bit): opcode
- * offset + 1 (16 bit): subroutine offset (in bios)
- *
- * Calls a subroutine that will execute commands until INIT_DONE
- * is found.
- */
-
- uint16_t sub_offset = ROM16(bios->data[offset + 1]);
-
- if (!iexec->execute)
- return 3;
-
- BIOSLOG(bios, "0x%04X: Executing subroutine at 0x%04X\n",
- offset, sub_offset);
-
- parse_init_table(bios, sub_offset, iexec);
-
- BIOSLOG(bios, "0x%04X: End of 0x%04X subroutine\n", offset, sub_offset);
-
- return 3;
-}
-
-static int
-init_i2c_if(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_I2C_IF opcode: 0x5E ('^')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): DCB I2C table entry index
- * offset + 2 (8 bit): I2C slave address
- * offset + 3 (8 bit): I2C register
- * offset + 4 (8 bit): mask
- * offset + 5 (8 bit): data
- *
- * Read the register given by "I2C register" on the device addressed
- * by "I2C slave address" on the I2C bus given by "DCB I2C table
- * entry index". Compare the result AND "mask" to "data".
- * If they're not equal, skip subsequent opcodes until condition is
- * inverted (INIT_NOT), or we hit INIT_RESUME
- */
-
- uint8_t i2c_index = bios->data[offset + 1];
- uint8_t i2c_address = bios->data[offset + 2] >> 1;
- uint8_t reg = bios->data[offset + 3];
- uint8_t mask = bios->data[offset + 4];
- uint8_t data = bios->data[offset + 5];
- struct nouveau_i2c_chan *chan;
- union i2c_smbus_data val;
- int ret;
-
- /* no execute check by design */
-
- BIOSLOG(bios, "0x%04X: DCBI2CIndex: 0x%02X, I2CAddress: 0x%02X\n",
- offset, i2c_index, i2c_address);
-
- chan = init_i2c_device_find(bios->dev, i2c_index);
- if (!chan)
- return -ENODEV;
-
- ret = i2c_smbus_xfer(&chan->adapter, i2c_address, 0,
- I2C_SMBUS_READ, reg,
- I2C_SMBUS_BYTE_DATA, &val);
- if (ret < 0) {
- BIOSLOG(bios, "0x%04X: I2CReg: 0x%02X, Value: [no device], "
- "Mask: 0x%02X, Data: 0x%02X\n",
- offset, reg, mask, data);
- iexec->execute = 0;
- return 6;
- }
-
- BIOSLOG(bios, "0x%04X: I2CReg: 0x%02X, Value: 0x%02X, "
- "Mask: 0x%02X, Data: 0x%02X\n",
- offset, reg, val.byte, mask, data);
-
- iexec->execute = ((val.byte & mask) == data);
-
- return 6;
-}
-
-static int
-init_copy_nv_reg(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_COPY_NV_REG opcode: 0x5F ('_')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): src reg
- * offset + 5 (8 bit): shift
- * offset + 6 (32 bit): src mask
- * offset + 10 (32 bit): xor
- * offset + 14 (32 bit): dst reg
- * offset + 18 (32 bit): dst mask
- *
- * Shift REGVAL("src reg") right by (signed) "shift", AND result with
- * "src mask", then XOR with "xor". Write this OR'd with
- * (REGVAL("dst reg") AND'd with "dst mask") to "dst reg"
- */
-
- uint32_t srcreg = *((uint32_t *)(&bios->data[offset + 1]));
- uint8_t shift = bios->data[offset + 5];
- uint32_t srcmask = *((uint32_t *)(&bios->data[offset + 6]));
- uint32_t xor = *((uint32_t *)(&bios->data[offset + 10]));
- uint32_t dstreg = *((uint32_t *)(&bios->data[offset + 14]));
- uint32_t dstmask = *((uint32_t *)(&bios->data[offset + 18]));
- uint32_t srcvalue, dstvalue;
-
- if (!iexec->execute)
- return 22;
-
- BIOSLOG(bios, "0x%04X: SrcReg: 0x%08X, Shift: 0x%02X, SrcMask: 0x%08X, "
- "Xor: 0x%08X, DstReg: 0x%08X, DstMask: 0x%08X\n",
- offset, srcreg, shift, srcmask, xor, dstreg, dstmask);
-
- srcvalue = bios_rd32(bios, srcreg);
-
- if (shift < 0x80)
- srcvalue >>= shift;
- else
- srcvalue <<= (0x100 - shift);
-
- srcvalue = (srcvalue & srcmask) ^ xor;
-
- dstvalue = bios_rd32(bios, dstreg) & dstmask;
-
- bios_wr32(bios, dstreg, dstvalue | srcvalue);
-
- return 22;
-}
-
-static int
-init_zm_index_io(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_ZM_INDEX_IO opcode: 0x62 ('b')
- *
- * offset (8 bit): opcode
- * offset + 1 (16 bit): CRTC port
- * offset + 3 (8 bit): CRTC index
- * offset + 4 (8 bit): data
- *
- * Write "data" to index "CRTC index" of "CRTC port"
- */
- uint16_t crtcport = ROM16(bios->data[offset + 1]);
- uint8_t crtcindex = bios->data[offset + 3];
- uint8_t data = bios->data[offset + 4];
-
- if (!iexec->execute)
- return 5;
-
- bios_idxprt_wr(bios, crtcport, crtcindex, data);
-
- return 5;
-}
-
-static inline void
-bios_md32(struct nvbios *bios, uint32_t reg,
- uint32_t mask, uint32_t val)
-{
- bios_wr32(bios, reg, (bios_rd32(bios, reg) & ~mask) | val);
-}
-
-static uint32_t
-peek_fb(struct drm_device *dev, struct io_mapping *fb,
- uint32_t off)
-{
- uint32_t val = 0;
-
- if (off < pci_resource_len(dev->pdev, 1)) {
- uint8_t __iomem *p =
- io_mapping_map_atomic_wc(fb, off & PAGE_MASK, KM_USER0);
-
- val = ioread32(p + (off & ~PAGE_MASK));
-
- io_mapping_unmap_atomic(p, KM_USER0);
- }
-
- return val;
-}
-
-static void
-poke_fb(struct drm_device *dev, struct io_mapping *fb,
- uint32_t off, uint32_t val)
-{
- if (off < pci_resource_len(dev->pdev, 1)) {
- uint8_t __iomem *p =
- io_mapping_map_atomic_wc(fb, off & PAGE_MASK, KM_USER0);
-
- iowrite32(val, p + (off & ~PAGE_MASK));
- wmb();
-
- io_mapping_unmap_atomic(p, KM_USER0);
- }
-}
-
-static inline bool
-read_back_fb(struct drm_device *dev, struct io_mapping *fb,
- uint32_t off, uint32_t val)
-{
- poke_fb(dev, fb, off, val);
- return val == peek_fb(dev, fb, off);
-}
-
-static int
-nv04_init_compute_mem(struct nvbios *bios)
-{
- struct drm_device *dev = bios->dev;
- uint32_t patt = 0xdeadbeef;
- struct io_mapping *fb;
- int i;
-
- /* Map the framebuffer aperture */
- fb = io_mapping_create_wc(pci_resource_start(dev->pdev, 1),
- pci_resource_len(dev->pdev, 1));
- if (!fb)
- return -ENOMEM;
-
- /* Sequencer and refresh off */
- NVWriteVgaSeq(dev, 0, 1, NVReadVgaSeq(dev, 0, 1) | 0x20);
- bios_md32(bios, NV04_PFB_DEBUG_0, 0, NV04_PFB_DEBUG_0_REFRESH_OFF);
-
- bios_md32(bios, NV04_PFB_BOOT_0, ~0,
- NV04_PFB_BOOT_0_RAM_AMOUNT_16MB |
- NV04_PFB_BOOT_0_RAM_WIDTH_128 |
- NV04_PFB_BOOT_0_RAM_TYPE_SGRAM_16MBIT);
-
- for (i = 0; i < 4; i++)
- poke_fb(dev, fb, 4 * i, patt);
-
- poke_fb(dev, fb, 0x400000, patt + 1);
-
- if (peek_fb(dev, fb, 0) == patt + 1) {
- bios_md32(bios, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_TYPE,
- NV04_PFB_BOOT_0_RAM_TYPE_SDRAM_16MBIT);
- bios_md32(bios, NV04_PFB_DEBUG_0,
- NV04_PFB_DEBUG_0_REFRESH_OFF, 0);
-
- for (i = 0; i < 4; i++)
- poke_fb(dev, fb, 4 * i, patt);
-
- if ((peek_fb(dev, fb, 0xc) & 0xffff) != (patt & 0xffff))
- bios_md32(bios, NV04_PFB_BOOT_0,
- NV04_PFB_BOOT_0_RAM_WIDTH_128 |
- NV04_PFB_BOOT_0_RAM_AMOUNT,
- NV04_PFB_BOOT_0_RAM_AMOUNT_8MB);
-
- } else if ((peek_fb(dev, fb, 0xc) & 0xffff0000) !=
- (patt & 0xffff0000)) {
- bios_md32(bios, NV04_PFB_BOOT_0,
- NV04_PFB_BOOT_0_RAM_WIDTH_128 |
- NV04_PFB_BOOT_0_RAM_AMOUNT,
- NV04_PFB_BOOT_0_RAM_AMOUNT_4MB);
-
- } else if (peek_fb(dev, fb, 0) != patt) {
- if (read_back_fb(dev, fb, 0x800000, patt))
- bios_md32(bios, NV04_PFB_BOOT_0,
- NV04_PFB_BOOT_0_RAM_AMOUNT,
- NV04_PFB_BOOT_0_RAM_AMOUNT_8MB);
- else
- bios_md32(bios, NV04_PFB_BOOT_0,
- NV04_PFB_BOOT_0_RAM_AMOUNT,
- NV04_PFB_BOOT_0_RAM_AMOUNT_4MB);
-
- bios_md32(bios, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_TYPE,
- NV04_PFB_BOOT_0_RAM_TYPE_SGRAM_8MBIT);
-
- } else if (!read_back_fb(dev, fb, 0x800000, patt)) {
- bios_md32(bios, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT,
- NV04_PFB_BOOT_0_RAM_AMOUNT_8MB);
-
- }
-
- /* Refresh on, sequencer on */
- bios_md32(bios, NV04_PFB_DEBUG_0, NV04_PFB_DEBUG_0_REFRESH_OFF, 0);
- NVWriteVgaSeq(dev, 0, 1, NVReadVgaSeq(dev, 0, 1) & ~0x20);
-
- io_mapping_free(fb);
- return 0;
-}
-
-static const uint8_t *
-nv05_memory_config(struct nvbios *bios)
-{
- /* Defaults for BIOSes lacking a memory config table */
- static const uint8_t default_config_tab[][2] = {
- { 0x24, 0x00 },
- { 0x28, 0x00 },
- { 0x24, 0x01 },
- { 0x1f, 0x00 },
- { 0x0f, 0x00 },
- { 0x17, 0x00 },
- { 0x06, 0x00 },
- { 0x00, 0x00 }
- };
- int i = (bios_rd32(bios, NV_PEXTDEV_BOOT_0) &
- NV_PEXTDEV_BOOT_0_RAMCFG) >> 2;
-
- if (bios->legacy.mem_init_tbl_ptr)
- return &bios->data[bios->legacy.mem_init_tbl_ptr + 2 * i];
- else
- return default_config_tab[i];
-}
-
-static int
-nv05_init_compute_mem(struct nvbios *bios)
-{
- struct drm_device *dev = bios->dev;
- const uint8_t *ramcfg = nv05_memory_config(bios);
- uint32_t patt = 0xdeadbeef;
- struct io_mapping *fb;
- int i, v;
-
- /* Map the framebuffer aperture */
- fb = io_mapping_create_wc(pci_resource_start(dev->pdev, 1),
- pci_resource_len(dev->pdev, 1));
- if (!fb)
- return -ENOMEM;
-
- /* Sequencer off */
- NVWriteVgaSeq(dev, 0, 1, NVReadVgaSeq(dev, 0, 1) | 0x20);
-
- if (bios_rd32(bios, NV04_PFB_BOOT_0) & NV04_PFB_BOOT_0_UMA_ENABLE)
- goto out;
-
- bios_md32(bios, NV04_PFB_DEBUG_0, NV04_PFB_DEBUG_0_REFRESH_OFF, 0);
-
- /* If present load the hardcoded scrambling table */
- if (bios->legacy.mem_init_tbl_ptr) {
- uint32_t *scramble_tab = (uint32_t *)&bios->data[
- bios->legacy.mem_init_tbl_ptr + 0x10];
-
- for (i = 0; i < 8; i++)
- bios_wr32(bios, NV04_PFB_SCRAMBLE(i),
- ROM32(scramble_tab[i]));
- }
-
- /* Set memory type/width/length defaults depending on the straps */
- bios_md32(bios, NV04_PFB_BOOT_0, 0x3f, ramcfg[0]);
-
- if (ramcfg[1] & 0x80)
- bios_md32(bios, NV04_PFB_CFG0, 0, NV04_PFB_CFG0_SCRAMBLE);
-
- bios_md32(bios, NV04_PFB_CFG1, 0x700001, (ramcfg[1] & 1) << 20);
- bios_md32(bios, NV04_PFB_CFG1, 0, 1);
-
- /* Probe memory bus width */
- for (i = 0; i < 4; i++)
- poke_fb(dev, fb, 4 * i, patt);
-
- if (peek_fb(dev, fb, 0xc) != patt)
- bios_md32(bios, NV04_PFB_BOOT_0,
- NV04_PFB_BOOT_0_RAM_WIDTH_128, 0);
-
- /* Probe memory length */
- v = bios_rd32(bios, NV04_PFB_BOOT_0) & NV04_PFB_BOOT_0_RAM_AMOUNT;
-
- if (v == NV04_PFB_BOOT_0_RAM_AMOUNT_32MB &&
- (!read_back_fb(dev, fb, 0x1000000, ++patt) ||
- !read_back_fb(dev, fb, 0, ++patt)))
- bios_md32(bios, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT,
- NV04_PFB_BOOT_0_RAM_AMOUNT_16MB);
-
- if (v == NV04_PFB_BOOT_0_RAM_AMOUNT_16MB &&
- !read_back_fb(dev, fb, 0x800000, ++patt))
- bios_md32(bios, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT,
- NV04_PFB_BOOT_0_RAM_AMOUNT_8MB);
-
- if (!read_back_fb(dev, fb, 0x400000, ++patt))
- bios_md32(bios, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT,
- NV04_PFB_BOOT_0_RAM_AMOUNT_4MB);
-
-out:
- /* Sequencer on */
- NVWriteVgaSeq(dev, 0, 1, NVReadVgaSeq(dev, 0, 1) & ~0x20);
-
- io_mapping_free(fb);
- return 0;
-}
-
-static int
-nv10_init_compute_mem(struct nvbios *bios)
-{
- struct drm_device *dev = bios->dev;
- struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
- const int mem_width[] = { 0x10, 0x00, 0x20 };
- const int mem_width_count = (dev_priv->chipset >= 0x17 ? 3 : 2);
- uint32_t patt = 0xdeadbeef;
- struct io_mapping *fb;
- int i, j, k;
-
- /* Map the framebuffer aperture */
- fb = io_mapping_create_wc(pci_resource_start(dev->pdev, 1),
- pci_resource_len(dev->pdev, 1));
- if (!fb)
- return -ENOMEM;
-
- bios_wr32(bios, NV10_PFB_REFCTRL, NV10_PFB_REFCTRL_VALID_1);
-
- /* Probe memory bus width */
- for (i = 0; i < mem_width_count; i++) {
- bios_md32(bios, NV04_PFB_CFG0, 0x30, mem_width[i]);
-
- for (j = 0; j < 4; j++) {
- for (k = 0; k < 4; k++)
- poke_fb(dev, fb, 0x1c, 0);
-
- poke_fb(dev, fb, 0x1c, patt);
- poke_fb(dev, fb, 0x3c, 0);
-
- if (peek_fb(dev, fb, 0x1c) == patt)
- goto mem_width_found;
- }
- }
-
-mem_width_found:
- patt <<= 1;
-
- /* Probe amount of installed memory */
- for (i = 0; i < 4; i++) {
- int off = bios_rd32(bios, NV04_PFB_FIFO_DATA) - 0x100000;
-
- poke_fb(dev, fb, off, patt);
- poke_fb(dev, fb, 0, 0);
-
- peek_fb(dev, fb, 0);
- peek_fb(dev, fb, 0);
- peek_fb(dev, fb, 0);
- peek_fb(dev, fb, 0);
-
- if (peek_fb(dev, fb, off) == patt)
- goto amount_found;
- }
-
- /* IC missing - disable the upper half memory space. */
- bios_md32(bios, NV04_PFB_CFG0, 0x1000, 0);
-
-amount_found:
- io_mapping_free(fb);
- return 0;
-}
-
-static int
-nv20_init_compute_mem(struct nvbios *bios)
-{
- struct drm_device *dev = bios->dev;
- struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
- uint32_t mask = (dev_priv->chipset >= 0x25 ? 0x300 : 0x900);
- uint32_t amount, off;
- struct io_mapping *fb;
-
- /* Map the framebuffer aperture */
- fb = io_mapping_create_wc(pci_resource_start(dev->pdev, 1),
- pci_resource_len(dev->pdev, 1));
- if (!fb)
- return -ENOMEM;
-
- bios_wr32(bios, NV10_PFB_REFCTRL, NV10_PFB_REFCTRL_VALID_1);
-
- /* Allow full addressing */
- bios_md32(bios, NV04_PFB_CFG0, 0, mask);
-
- amount = bios_rd32(bios, NV04_PFB_FIFO_DATA);
- for (off = amount; off > 0x2000000; off -= 0x2000000)
- poke_fb(dev, fb, off - 4, off);
-
- amount = bios_rd32(bios, NV04_PFB_FIFO_DATA);
- if (amount != peek_fb(dev, fb, amount - 4))
- /* IC missing - disable the upper half memory space. */
- bios_md32(bios, NV04_PFB_CFG0, mask, 0);
-
- io_mapping_free(fb);
- return 0;
-}
-
-static int
-init_compute_mem(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_COMPUTE_MEM opcode: 0x63 ('c')
- *
- * offset (8 bit): opcode
- *
- * This opcode is meant to set the PFB memory config registers
- * appropriately so that we can correctly calculate how much VRAM it
- * has (on nv10 and better chipsets the amount of installed VRAM is
- * subsequently reported in NV_PFB_CSTATUS (0x10020C)).
- *
- * The implementation of this opcode in general consists of several
- * parts:
- *
- * 1) Determination of memory type and density. Only necessary for
- * really old chipsets, the memory type reported by the strap bits
- * (0x101000) is assumed to be accurate on nv05 and newer.
- *
- * 2) Determination of the memory bus width. Usually done by a cunning
- * combination of writes to offsets 0x1c and 0x3c in the fb, and
- * seeing whether the written values are read back correctly.
- *
- * Only necessary on nv0x-nv1x and nv34, on the other cards we can
- * trust the straps.
- *
- * 3) Determination of how many of the card's RAM pads have ICs
- * attached, usually done by a cunning combination of writes to an
- * offset slightly less than the maximum memory reported by
- * NV_PFB_CSTATUS, then seeing if the test pattern can be read back.
- *
- * This appears to be a NOP on IGPs and NV4x or newer chipsets, both io
- * logs of the VBIOS and kmmio traces of the binary driver POSTing the
- * card show nothing being done for this opcode. Why is it still listed
- * in the table?!
- */
-
- /* no iexec->execute check by design */
-
- struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
- int ret;
-
- if (dev_priv->chipset >= 0x40 ||
- dev_priv->chipset == 0x1a ||
- dev_priv->chipset == 0x1f)
- ret = 0;
- else if (dev_priv->chipset >= 0x20 &&
- dev_priv->chipset != 0x34)
- ret = nv20_init_compute_mem(bios);
- else if (dev_priv->chipset >= 0x10)
- ret = nv10_init_compute_mem(bios);
- else if (dev_priv->chipset >= 0x5)
- ret = nv05_init_compute_mem(bios);
- else
- ret = nv04_init_compute_mem(bios);
-
- if (ret)
- return ret;
-
- return 1;
-}
-
-static int
-init_reset(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_RESET opcode: 0x65 ('e')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): register
- * offset + 5 (32 bit): value1
- * offset + 9 (32 bit): value2
- *
- * Assign "value1" to "register", then assign "value2" to "register"
- */
-
- uint32_t reg = ROM32(bios->data[offset + 1]);
- uint32_t value1 = ROM32(bios->data[offset + 5]);
- uint32_t value2 = ROM32(bios->data[offset + 9]);
- uint32_t pci_nv_19, pci_nv_20;
-
- /* no iexec->execute check by design */
-
- pci_nv_19 = bios_rd32(bios, NV_PBUS_PCI_NV_19);
- bios_wr32(bios, NV_PBUS_PCI_NV_19, pci_nv_19 & ~0xf00);
-
- bios_wr32(bios, reg, value1);
-
- udelay(10);
-
- bios_wr32(bios, reg, value2);
- bios_wr32(bios, NV_PBUS_PCI_NV_19, pci_nv_19);
-
- pci_nv_20 = bios_rd32(bios, NV_PBUS_PCI_NV_20);
- pci_nv_20 &= ~NV_PBUS_PCI_NV_20_ROM_SHADOW_ENABLED; /* 0xfffffffe */
- bios_wr32(bios, NV_PBUS_PCI_NV_20, pci_nv_20);
-
- return 13;
-}
-
-static int
-init_configure_mem(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_CONFIGURE_MEM opcode: 0x66 ('f')
- *
- * offset (8 bit): opcode
- *
- * Equivalent to INIT_DONE on bios version 3 or greater.
- * For early bios versions, sets up the memory registers, using values
- * taken from the memory init table
- */
-
- /* no iexec->execute check by design */
-
- uint16_t meminitoffs = bios->legacy.mem_init_tbl_ptr + MEM_INIT_SIZE * (bios_idxprt_rd(bios, NV_CIO_CRX__COLOR, NV_CIO_CRE_SCRATCH4__INDEX) >> 4);
- uint16_t seqtbloffs = bios->legacy.sdr_seq_tbl_ptr, meminitdata = meminitoffs + 6;
- uint32_t reg, data;
-
- if (bios->major_version > 2)
- return 0;
-
- bios_idxprt_wr(bios, NV_VIO_SRX, NV_VIO_SR_CLOCK_INDEX, bios_idxprt_rd(
- bios, NV_VIO_SRX, NV_VIO_SR_CLOCK_INDEX) | 0x20);
-
- if (bios->data[meminitoffs] & 1)
- seqtbloffs = bios->legacy.ddr_seq_tbl_ptr;
-
- for (reg = ROM32(bios->data[seqtbloffs]);
- reg != 0xffffffff;
- reg = ROM32(bios->data[seqtbloffs += 4])) {
-
- switch (reg) {
- case NV04_PFB_PRE:
- data = NV04_PFB_PRE_CMD_PRECHARGE;
- break;
- case NV04_PFB_PAD:
- data = NV04_PFB_PAD_CKE_NORMAL;
- break;
- case NV04_PFB_REF:
- data = NV04_PFB_REF_CMD_REFRESH;
- break;
- default:
- data = ROM32(bios->data[meminitdata]);
- meminitdata += 4;
- if (data == 0xffffffff)
- continue;
- }
-
- bios_wr32(bios, reg, data);
- }
-
- return 1;
-}
-
-static int
-init_configure_clk(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_CONFIGURE_CLK opcode: 0x67 ('g')
- *
- * offset (8 bit): opcode
- *
- * Equivalent to INIT_DONE on bios version 3 or greater.
- * For early bios versions, sets up the NVClk and MClk PLLs, using
- * values taken from the memory init table
- */
-
- /* no iexec->execute check by design */
-
- uint16_t meminitoffs = bios->legacy.mem_init_tbl_ptr + MEM_INIT_SIZE * (bios_idxprt_rd(bios, NV_CIO_CRX__COLOR, NV_CIO_CRE_SCRATCH4__INDEX) >> 4);
- int clock;
-
- if (bios->major_version > 2)
- return 0;
-
- clock = ROM16(bios->data[meminitoffs + 4]) * 10;
- setPLL(bios, NV_PRAMDAC_NVPLL_COEFF, clock);
-
- clock = ROM16(bios->data[meminitoffs + 2]) * 10;
- if (bios->data[meminitoffs] & 1) /* DDR */
- clock *= 2;
- setPLL(bios, NV_PRAMDAC_MPLL_COEFF, clock);
-
- return 1;
-}
-
-static int
-init_configure_preinit(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_CONFIGURE_PREINIT opcode: 0x68 ('h')
- *
- * offset (8 bit): opcode
- *
- * Equivalent to INIT_DONE on bios version 3 or greater.
- * For early bios versions, does early init, loading ram and crystal
- * configuration from straps into CR3C
- */
-
- /* no iexec->execute check by design */
-
- uint32_t straps = bios_rd32(bios, NV_PEXTDEV_BOOT_0);
- uint8_t cr3c = ((straps << 2) & 0xf0) | (straps & 0x40) >> 6;
-
- if (bios->major_version > 2)
- return 0;
-
- bios_idxprt_wr(bios, NV_CIO_CRX__COLOR,
- NV_CIO_CRE_SCRATCH4__INDEX, cr3c);
-
- return 1;
-}
-
-static int
-init_io(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_IO opcode: 0x69 ('i')
- *
- * offset (8 bit): opcode
- * offset + 1 (16 bit): CRTC port
- * offset + 3 (8 bit): mask
- * offset + 4 (8 bit): data
- *
- * Assign ((IOVAL("crtc port") & "mask") | "data") to "crtc port"
- */
-
- struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
- uint16_t crtcport = ROM16(bios->data[offset + 1]);
- uint8_t mask = bios->data[offset + 3];
- uint8_t data = bios->data[offset + 4];
-
- if (!iexec->execute)
- return 5;
-
- BIOSLOG(bios, "0x%04X: Port: 0x%04X, Mask: 0x%02X, Data: 0x%02X\n",
- offset, crtcport, mask, data);
-
- /*
- * I have no idea what this does, but NVIDIA do this magic sequence
- * in the places where this INIT_IO happens..
- */
- if (dev_priv->card_type >= NV_50 && crtcport == 0x3c3 && data == 1) {
- int i;
-
- bios_wr32(bios, 0x614100, (bios_rd32(
- bios, 0x614100) & 0x0fffffff) | 0x00800000);
-
- bios_wr32(bios, 0x00e18c, bios_rd32(
- bios, 0x00e18c) | 0x00020000);
-
- bios_wr32(bios, 0x614900, (bios_rd32(
- bios, 0x614900) & 0x0fffffff) | 0x00800000);
-
- bios_wr32(bios, 0x000200, bios_rd32(
- bios, 0x000200) & ~0x40000000);
-
- mdelay(10);
-
- bios_wr32(bios, 0x00e18c, bios_rd32(
- bios, 0x00e18c) & ~0x00020000);
-
- bios_wr32(bios, 0x000200, bios_rd32(
- bios, 0x000200) | 0x40000000);
-
- bios_wr32(bios, 0x614100, 0x00800018);
- bios_wr32(bios, 0x614900, 0x00800018);
-
- mdelay(10);
-
- bios_wr32(bios, 0x614100, 0x10000018);
- bios_wr32(bios, 0x614900, 0x10000018);
-
- for (i = 0; i < 3; i++)
- bios_wr32(bios, 0x614280 + (i*0x800), bios_rd32(
- bios, 0x614280 + (i*0x800)) & 0xf0f0f0f0);
-
- for (i = 0; i < 2; i++)
- bios_wr32(bios, 0x614300 + (i*0x800), bios_rd32(
- bios, 0x614300 + (i*0x800)) & 0xfffff0f0);
-
- for (i = 0; i < 3; i++)
- bios_wr32(bios, 0x614380 + (i*0x800), bios_rd32(
- bios, 0x614380 + (i*0x800)) & 0xfffff0f0);
-
- for (i = 0; i < 2; i++)
- bios_wr32(bios, 0x614200 + (i*0x800), bios_rd32(
- bios, 0x614200 + (i*0x800)) & 0xfffffff0);
-
- for (i = 0; i < 2; i++)
- bios_wr32(bios, 0x614108 + (i*0x800), bios_rd32(
- bios, 0x614108 + (i*0x800)) & 0x0fffffff);
- return 5;
- }
-
- bios_port_wr(bios, crtcport, (bios_port_rd(bios, crtcport) & mask) |
- data);
- return 5;
-}
-
-static int
-init_sub(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_SUB opcode: 0x6B ('k')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): script number
- *
- * Execute script number "script number", as a subroutine
- */
-
- uint8_t sub = bios->data[offset + 1];
-
- if (!iexec->execute)
- return 2;
-
- BIOSLOG(bios, "0x%04X: Calling script %d\n", offset, sub);
-
- parse_init_table(bios,
- ROM16(bios->data[bios->init_script_tbls_ptr + sub * 2]),
- iexec);
-
- BIOSLOG(bios, "0x%04X: End of script %d\n", offset, sub);
-
- return 2;
-}
-
-static int
-init_ram_condition(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_RAM_CONDITION opcode: 0x6D ('m')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): mask
- * offset + 2 (8 bit): cmpval
- *
- * Test if (NV04_PFB_BOOT_0 & "mask") equals "cmpval".
- * If condition not met skip subsequent opcodes until condition is
- * inverted (INIT_NOT), or we hit INIT_RESUME
- */
-
- uint8_t mask = bios->data[offset + 1];
- uint8_t cmpval = bios->data[offset + 2];
- uint8_t data;
-
- if (!iexec->execute)
- return 3;
-
- data = bios_rd32(bios, NV04_PFB_BOOT_0) & mask;
-
- BIOSLOG(bios, "0x%04X: Checking if 0x%08X equals 0x%08X\n",
- offset, data, cmpval);
-
- if (data == cmpval)
- BIOSLOG(bios, "0x%04X: Condition fulfilled -- continuing to execute\n", offset);
- else {
- BIOSLOG(bios, "0x%04X: Condition not fulfilled -- skipping following commands\n", offset);
- iexec->execute = false;
- }
-
- return 3;
-}
-
-static int
-init_nv_reg(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_NV_REG opcode: 0x6E ('n')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): register
- * offset + 5 (32 bit): mask
- * offset + 9 (32 bit): data
- *
- * Assign ((REGVAL("register") & "mask") | "data") to "register"
- */
-
- uint32_t reg = ROM32(bios->data[offset + 1]);
- uint32_t mask = ROM32(bios->data[offset + 5]);
- uint32_t data = ROM32(bios->data[offset + 9]);
-
- if (!iexec->execute)
- return 13;
-
- BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Mask: 0x%08X, Data: 0x%08X\n",
- offset, reg, mask, data);
-
- bios_wr32(bios, reg, (bios_rd32(bios, reg) & mask) | data);
-
- return 13;
-}
-
-static int
-init_macro(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_MACRO opcode: 0x6F ('o')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): macro number
- *
- * Look up macro index "macro number" in the macro index table.
- * The macro index table entry has 1 byte for the index in the macro
- * table, and 1 byte for the number of times to repeat the macro.
- * The macro table entry has 4 bytes for the register address and
- * 4 bytes for the value to write to that register
- */
-
- uint8_t macro_index_tbl_idx = bios->data[offset + 1];
- uint16_t tmp = bios->macro_index_tbl_ptr + (macro_index_tbl_idx * MACRO_INDEX_SIZE);
- uint8_t macro_tbl_idx = bios->data[tmp];
- uint8_t count = bios->data[tmp + 1];
- uint32_t reg, data;
- int i;
-
- if (!iexec->execute)
- return 2;
-
- BIOSLOG(bios, "0x%04X: Macro: 0x%02X, MacroTableIndex: 0x%02X, "
- "Count: 0x%02X\n",
- offset, macro_index_tbl_idx, macro_tbl_idx, count);
-
- for (i = 0; i < count; i++) {
- uint16_t macroentryptr = bios->macro_tbl_ptr + (macro_tbl_idx + i) * MACRO_SIZE;
-
- reg = ROM32(bios->data[macroentryptr]);
- data = ROM32(bios->data[macroentryptr + 4]);
-
- bios_wr32(bios, reg, data);
- }
-
- return 2;
-}
-
-static int
-init_done(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_DONE opcode: 0x71 ('q')
- *
- * offset (8 bit): opcode
- *
- * End the current script
- */
-
- /* mild retval abuse to stop parsing this table */
- return 0;
-}
-
-static int
-init_resume(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_RESUME opcode: 0x72 ('r')
- *
- * offset (8 bit): opcode
- *
- * End the current execute / no-execute condition
- */
-
- if (iexec->execute)
- return 1;
-
- iexec->execute = true;
- BIOSLOG(bios, "0x%04X: ---- Executing following commands ----\n", offset);
-
- return 1;
-}
-
-static int
-init_time(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_TIME opcode: 0x74 ('t')
- *
- * offset (8 bit): opcode
- * offset + 1 (16 bit): time
- *
- * Sleep for "time" microseconds.
- */
-
- unsigned time = ROM16(bios->data[offset + 1]);
-
- if (!iexec->execute)
- return 3;
-
- BIOSLOG(bios, "0x%04X: Sleeping for 0x%04X microseconds\n",
- offset, time);
-
- if (time < 1000)
- udelay(time);
- else
- msleep((time + 900) / 1000);
-
- return 3;
-}
-
-static int
-init_condition(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_CONDITION opcode: 0x75 ('u')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): condition number
- *
- * Check condition "condition number" in the condition table.
- * If condition not met skip subsequent opcodes until condition is
- * inverted (INIT_NOT), or we hit INIT_RESUME
- */
-
- uint8_t cond = bios->data[offset + 1];
-
- if (!iexec->execute)
- return 2;
-
- BIOSLOG(bios, "0x%04X: Condition: 0x%02X\n", offset, cond);
-
- if (bios_condition_met(bios, offset, cond))
- BIOSLOG(bios, "0x%04X: Condition fulfilled -- continuing to execute\n", offset);
- else {
- BIOSLOG(bios, "0x%04X: Condition not fulfilled -- skipping following commands\n", offset);
- iexec->execute = false;
- }
-
- return 2;
-}
-
-static int
-init_io_condition(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_IO_CONDITION opcode: 0x76
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): condition number
- *
- * Check condition "condition number" in the io condition table.
- * If condition not met skip subsequent opcodes until condition is
- * inverted (INIT_NOT), or we hit INIT_RESUME
- */
-
- uint8_t cond = bios->data[offset + 1];
-
- if (!iexec->execute)
- return 2;
-
- BIOSLOG(bios, "0x%04X: IO condition: 0x%02X\n", offset, cond);
-
- if (io_condition_met(bios, offset, cond))
- BIOSLOG(bios, "0x%04X: Condition fulfilled -- continuing to execute\n", offset);
- else {
- BIOSLOG(bios, "0x%04X: Condition not fulfilled -- skipping following commands\n", offset);
- iexec->execute = false;
- }
-
- return 2;
-}
-
-static int
-init_index_io(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_INDEX_IO opcode: 0x78 ('x')
- *
- * offset (8 bit): opcode
- * offset + 1 (16 bit): CRTC port
- * offset + 3 (8 bit): CRTC index
- * offset + 4 (8 bit): mask
- * offset + 5 (8 bit): data
- *
- * Read value at index "CRTC index" on "CRTC port", AND with "mask",
- * OR with "data", write-back
- */
-
- uint16_t crtcport = ROM16(bios->data[offset + 1]);
- uint8_t crtcindex = bios->data[offset + 3];
- uint8_t mask = bios->data[offset + 4];
- uint8_t data = bios->data[offset + 5];
- uint8_t value;
-
- if (!iexec->execute)
- return 6;
-
- BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, "
- "Data: 0x%02X\n",
- offset, crtcport, crtcindex, mask, data);
-
- value = (bios_idxprt_rd(bios, crtcport, crtcindex) & mask) | data;
- bios_idxprt_wr(bios, crtcport, crtcindex, value);
-
- return 6;
-}
-
-static int
-init_pll(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_PLL opcode: 0x79 ('y')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): register
- * offset + 5 (16 bit): freq
- *
- * Set PLL register "register" to coefficients for frequency (10kHz)
- * "freq"
- */
-
- uint32_t reg = ROM32(bios->data[offset + 1]);
- uint16_t freq = ROM16(bios->data[offset + 5]);
-
- if (!iexec->execute)
- return 7;
-
- BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Freq: %d0kHz\n", offset, reg, freq);
-
- setPLL(bios, reg, freq * 10);
-
- return 7;
-}
-
-static int
-init_zm_reg(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_ZM_REG opcode: 0x7A ('z')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): register
- * offset + 5 (32 bit): value
- *
- * Assign "value" to "register"
- */
-
- uint32_t reg = ROM32(bios->data[offset + 1]);
- uint32_t value = ROM32(bios->data[offset + 5]);
-
- if (!iexec->execute)
- return 9;
-
- if (reg == 0x000200)
- value |= 1;
-
- bios_wr32(bios, reg, value);
-
- return 9;
-}
-
-static int
-init_ram_restrict_pll(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_RAM_RESTRICT_PLL opcode: 0x87 ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): PLL type
- * offset + 2 (32 bit): frequency 0
- *
- * Uses the RAMCFG strap of PEXTDEV_BOOT as an index into the table at
- * ram_restrict_table_ptr. The value read from there is used to select
- * a frequency from the table starting at 'frequency 0' to be
- * programmed into the PLL corresponding to 'type'.
- *
- * The PLL limits table on cards using this opcode has a mapping of
- * 'type' to the relevant registers.
- */
-
- struct drm_device *dev = bios->dev;
- uint32_t strap = (bios_rd32(bios, NV_PEXTDEV_BOOT_0) & 0x0000003c) >> 2;
- uint8_t index = bios->data[bios->ram_restrict_tbl_ptr + strap];
- uint8_t type = bios->data[offset + 1];
- uint32_t freq = ROM32(bios->data[offset + 2 + (index * 4)]);
- uint8_t *pll_limits = &bios->data[bios->pll_limit_tbl_ptr], *entry;
- int len = 2 + bios->ram_restrict_group_count * 4;
- int i;
-
- if (!iexec->execute)
- return len;
-
- if (!bios->pll_limit_tbl_ptr || (pll_limits[0] & 0xf0) != 0x30) {
- NV_ERROR(dev, "PLL limits table not version 3.x\n");
- return len; /* deliberate, allow default clocks to remain */
- }
-
- entry = pll_limits + pll_limits[1];
- for (i = 0; i < pll_limits[3]; i++, entry += pll_limits[2]) {
- if (entry[0] == type) {
- uint32_t reg = ROM32(entry[3]);
-
- BIOSLOG(bios, "0x%04X: "
- "Type %02x Reg 0x%08x Freq %dKHz\n",
- offset, type, reg, freq);
-
- setPLL(bios, reg, freq);
- return len;
- }
- }
-
- NV_ERROR(dev, "PLL type 0x%02x not found in PLL limits table", type);
- return len;
-}
-
-static int
-init_8c(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_8C opcode: 0x8C ('')
- *
- * NOP so far....
- *
- */
-
- return 1;
-}
-
-static int
-init_8d(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_8D opcode: 0x8D ('')
- *
- * NOP so far....
- *
- */
-
- return 1;
-}
-
-static int
-init_gpio(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_GPIO opcode: 0x8E ('')
- *
- * offset (8 bit): opcode
- *
- * Loop over all entries in the DCB GPIO table, and initialise
- * each GPIO according to various values listed in each entry
- */
-
- struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
- struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
- const uint32_t nv50_gpio_ctl[2] = { 0xe100, 0xe28c };
- int i;
-
- if (dev_priv->card_type < NV_50) {
- NV_ERROR(bios->dev, "INIT_GPIO on unsupported chipset\n");
- return 1;
- }
-
- if (!iexec->execute)
- return 1;
-
- for (i = 0; i < bios->dcb.gpio.entries; i++) {
- struct dcb_gpio_entry *gpio = &bios->dcb.gpio.entry[i];
- uint32_t r, s, v;
-
- BIOSLOG(bios, "0x%04X: Entry: 0x%08X\n", offset, gpio->entry);
-
- BIOSLOG(bios, "0x%04X: set gpio 0x%02x, state %d\n",
- offset, gpio->tag, gpio->state_default);
- if (bios->execute)
- pgpio->set(bios->dev, gpio->tag, gpio->state_default);
-
- /* The NVIDIA binary driver doesn't appear to actually do
- * any of this, my VBIOS does however.
- */
- /* Not a clue, needs de-magicing */
- r = nv50_gpio_ctl[gpio->line >> 4];
- s = (gpio->line & 0x0f);
- v = bios_rd32(bios, r) & ~(0x00010001 << s);
- switch ((gpio->entry & 0x06000000) >> 25) {
- case 1:
- v |= (0x00000001 << s);
- break;
- case 2:
- v |= (0x00010000 << s);
- break;
- default:
- break;
- }
- bios_wr32(bios, r, v);
- }
-
- return 1;
-}
-
-static int
-init_ram_restrict_zm_reg_group(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_RAM_RESTRICT_ZM_REG_GROUP opcode: 0x8F ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): reg
- * offset + 5 (8 bit): regincrement
- * offset + 6 (8 bit): count
- * offset + 7 (32 bit): value 1,1
- * ...
- *
- * Use the RAMCFG strap of PEXTDEV_BOOT as an index into the table at
- * ram_restrict_table_ptr. The value read from here is 'n', and
- * "value 1,n" gets written to "reg". This repeats "count" times and on
- * each iteration 'm', "reg" increases by "regincrement" and
- * "value m,n" is used. The extent of n is limited by a number read
- * from the 'M' BIT table, herein called "blocklen"
- */
-
- uint32_t reg = ROM32(bios->data[offset + 1]);
- uint8_t regincrement = bios->data[offset + 5];
- uint8_t count = bios->data[offset + 6];
- uint32_t strap_ramcfg, data;
- /* previously set by 'M' BIT table */
- uint16_t blocklen = bios->ram_restrict_group_count * 4;
- int len = 7 + count * blocklen;
- uint8_t index;
- int i;
-
- /* critical! to know the length of the opcode */;
- if (!blocklen) {
- NV_ERROR(bios->dev,
- "0x%04X: Zero block length - has the M table "
- "been parsed?\n", offset);
- return -EINVAL;
- }
-
- if (!iexec->execute)
- return len;
-
- strap_ramcfg = (bios_rd32(bios, NV_PEXTDEV_BOOT_0) >> 2) & 0xf;
- index = bios->data[bios->ram_restrict_tbl_ptr + strap_ramcfg];
-
- BIOSLOG(bios, "0x%04X: Reg: 0x%08X, RegIncrement: 0x%02X, "
- "Count: 0x%02X, StrapRamCfg: 0x%02X, Index: 0x%02X\n",
- offset, reg, regincrement, count, strap_ramcfg, index);
-
- for (i = 0; i < count; i++) {
- data = ROM32(bios->data[offset + 7 + index * 4 + blocklen * i]);
-
- bios_wr32(bios, reg, data);
-
- reg += regincrement;
- }
-
- return len;
-}
-
-static int
-init_copy_zm_reg(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_COPY_ZM_REG opcode: 0x90 ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): src reg
- * offset + 5 (32 bit): dst reg
- *
- * Put contents of "src reg" into "dst reg"
- */
-
- uint32_t srcreg = ROM32(bios->data[offset + 1]);
- uint32_t dstreg = ROM32(bios->data[offset + 5]);
-
- if (!iexec->execute)
- return 9;
-
- bios_wr32(bios, dstreg, bios_rd32(bios, srcreg));
-
- return 9;
-}
-
-static int
-init_zm_reg_group_addr_latched(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_ZM_REG_GROUP_ADDRESS_LATCHED opcode: 0x91 ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): dst reg
- * offset + 5 (8 bit): count
- * offset + 6 (32 bit): data 1
- * ...
- *
- * For each of "count" values write "data n" to "dst reg"
- */
-
- uint32_t reg = ROM32(bios->data[offset + 1]);
- uint8_t count = bios->data[offset + 5];
- int len = 6 + count * 4;
- int i;
-
- if (!iexec->execute)
- return len;
-
- for (i = 0; i < count; i++) {
- uint32_t data = ROM32(bios->data[offset + 6 + 4 * i]);
- bios_wr32(bios, reg, data);
- }
-
- return len;
-}
-
-static int
-init_reserved(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_RESERVED opcode: 0x92 ('')
- *
- * offset (8 bit): opcode
- *
- * Seemingly does nothing
- */
-
- return 1;
-}
-
-static int
-init_96(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_96 opcode: 0x96 ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): sreg
- * offset + 5 (8 bit): sshift
- * offset + 6 (8 bit): smask
- * offset + 7 (8 bit): index
- * offset + 8 (32 bit): reg
- * offset + 12 (32 bit): mask
- * offset + 16 (8 bit): shift
- *
- */
-
- uint16_t xlatptr = bios->init96_tbl_ptr + (bios->data[offset + 7] * 2);
- uint32_t reg = ROM32(bios->data[offset + 8]);
- uint32_t mask = ROM32(bios->data[offset + 12]);
- uint32_t val;
-
- val = bios_rd32(bios, ROM32(bios->data[offset + 1]));
- if (bios->data[offset + 5] < 0x80)
- val >>= bios->data[offset + 5];
- else
- val <<= (0x100 - bios->data[offset + 5]);
- val &= bios->data[offset + 6];
-
- val = bios->data[ROM16(bios->data[xlatptr]) + val];
- val <<= bios->data[offset + 16];
-
- if (!iexec->execute)
- return 17;
-
- bios_wr32(bios, reg, (bios_rd32(bios, reg) & mask) | val);
- return 17;
-}
-
-static int
-init_97(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_97 opcode: 0x97 ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): register
- * offset + 5 (32 bit): mask
- * offset + 9 (32 bit): value
- *
- * Adds "value" to "register" preserving the fields specified
- * by "mask"
- */
-
- uint32_t reg = ROM32(bios->data[offset + 1]);
- uint32_t mask = ROM32(bios->data[offset + 5]);
- uint32_t add = ROM32(bios->data[offset + 9]);
- uint32_t val;
-
- val = bios_rd32(bios, reg);
- val = (val & mask) | ((val + add) & ~mask);
-
- if (!iexec->execute)
- return 13;
-
- bios_wr32(bios, reg, val);
- return 13;
-}
-
-static int
-init_auxch(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_AUXCH opcode: 0x98 ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): address
- * offset + 5 (8 bit): count
- * offset + 6 (8 bit): mask 0
- * offset + 7 (8 bit): data 0
- * ...
- *
- */
-
- struct drm_device *dev = bios->dev;
- struct nouveau_i2c_chan *auxch;
- uint32_t addr = ROM32(bios->data[offset + 1]);
- uint8_t count = bios->data[offset + 5];
- int len = 6 + count * 2;
- int ret, i;
-
- if (!bios->display.output) {
- NV_ERROR(dev, "INIT_AUXCH: no active output\n");
- return len;
- }
-
- auxch = init_i2c_device_find(dev, bios->display.output->i2c_index);
- if (!auxch) {
- NV_ERROR(dev, "INIT_AUXCH: couldn't get auxch %d\n",
- bios->display.output->i2c_index);
- return len;
- }
-
- if (!iexec->execute)
- return len;
-
- offset += 6;
- for (i = 0; i < count; i++, offset += 2) {
- uint8_t data;
-
- ret = nouveau_dp_auxch(auxch, 9, addr, &data, 1);
- if (ret) {
- NV_ERROR(dev, "INIT_AUXCH: rd auxch fail %d\n", ret);
- return len;
- }
-
- data &= bios->data[offset + 0];
- data |= bios->data[offset + 1];
-
- ret = nouveau_dp_auxch(auxch, 8, addr, &data, 1);
- if (ret) {
- NV_ERROR(dev, "INIT_AUXCH: wr auxch fail %d\n", ret);
- return len;
- }
- }
-
- return len;
-}
-
-static int
-init_zm_auxch(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_ZM_AUXCH opcode: 0x99 ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): address
- * offset + 5 (8 bit): count
- * offset + 6 (8 bit): data 0
- * ...
- *
- */
-
- struct drm_device *dev = bios->dev;
- struct nouveau_i2c_chan *auxch;
- uint32_t addr = ROM32(bios->data[offset + 1]);
- uint8_t count = bios->data[offset + 5];
- int len = 6 + count;
- int ret, i;
-
- if (!bios->display.output) {
- NV_ERROR(dev, "INIT_ZM_AUXCH: no active output\n");
- return len;
- }
-
- auxch = init_i2c_device_find(dev, bios->display.output->i2c_index);
- if (!auxch) {
- NV_ERROR(dev, "INIT_ZM_AUXCH: couldn't get auxch %d\n",
- bios->display.output->i2c_index);
- return len;
- }
-
- if (!iexec->execute)
- return len;
-
- offset += 6;
- for (i = 0; i < count; i++, offset++) {
- ret = nouveau_dp_auxch(auxch, 8, addr, &bios->data[offset], 1);
- if (ret) {
- NV_ERROR(dev, "INIT_ZM_AUXCH: wr auxch fail %d\n", ret);
- return len;
- }
- }
-
- return len;
-}
-
-static int
-init_i2c_long_if(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_I2C_LONG_IF opcode: 0x9A ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): DCB I2C table entry index
- * offset + 2 (8 bit): I2C slave address
- * offset + 3 (16 bit): I2C register
- * offset + 5 (8 bit): mask
- * offset + 6 (8 bit): data
- *
- * Read the register given by "I2C register" on the device addressed
- * by "I2C slave address" on the I2C bus given by "DCB I2C table
- * entry index". Compare the result AND "mask" to "data".
- * If they're not equal, skip subsequent opcodes until condition is
- * inverted (INIT_NOT), or we hit INIT_RESUME
- */
-
- uint8_t i2c_index = bios->data[offset + 1];
- uint8_t i2c_address = bios->data[offset + 2] >> 1;
- uint8_t reglo = bios->data[offset + 3];
- uint8_t reghi = bios->data[offset + 4];
- uint8_t mask = bios->data[offset + 5];
- uint8_t data = bios->data[offset + 6];
- struct nouveau_i2c_chan *chan;
- uint8_t buf0[2] = { reghi, reglo };
- uint8_t buf1[1];
- struct i2c_msg msg[2] = {
- { i2c_address, 0, 1, buf0 },
- { i2c_address, I2C_M_RD, 1, buf1 },
- };
- int ret;
-
- /* no execute check by design */
-
- BIOSLOG(bios, "0x%04X: DCBI2CIndex: 0x%02X, I2CAddress: 0x%02X\n",
- offset, i2c_index, i2c_address);
-
- chan = init_i2c_device_find(bios->dev, i2c_index);
- if (!chan)
- return -ENODEV;
-
-
- ret = i2c_transfer(&chan->adapter, msg, 2);
- if (ret < 0) {
- BIOSLOG(bios, "0x%04X: I2CReg: 0x%02X:0x%02X, Value: [no device], "
- "Mask: 0x%02X, Data: 0x%02X\n",
- offset, reghi, reglo, mask, data);
- iexec->execute = 0;
- return 7;
- }
-
- BIOSLOG(bios, "0x%04X: I2CReg: 0x%02X:0x%02X, Value: 0x%02X, "
- "Mask: 0x%02X, Data: 0x%02X\n",
- offset, reghi, reglo, buf1[0], mask, data);
-
- iexec->execute = ((buf1[0] & mask) == data);
-
- return 7;
-}
-
-static struct init_tbl_entry itbl_entry[] = {
- /* command name , id , length , offset , mult , command handler */
- /* INIT_PROG (0x31, 15, 10, 4) removed due to no example of use */
- { "INIT_IO_RESTRICT_PROG" , 0x32, init_io_restrict_prog },
- { "INIT_REPEAT" , 0x33, init_repeat },
- { "INIT_IO_RESTRICT_PLL" , 0x34, init_io_restrict_pll },
- { "INIT_END_REPEAT" , 0x36, init_end_repeat },
- { "INIT_COPY" , 0x37, init_copy },
- { "INIT_NOT" , 0x38, init_not },
- { "INIT_IO_FLAG_CONDITION" , 0x39, init_io_flag_condition },
- { "INIT_DP_CONDITION" , 0x3A, init_dp_condition },
- { "INIT_OP_3B" , 0x3B, init_op_3b },
- { "INIT_OP_3C" , 0x3C, init_op_3c },
- { "INIT_INDEX_ADDRESS_LATCHED" , 0x49, init_idx_addr_latched },
- { "INIT_IO_RESTRICT_PLL2" , 0x4A, init_io_restrict_pll2 },
- { "INIT_PLL2" , 0x4B, init_pll2 },
- { "INIT_I2C_BYTE" , 0x4C, init_i2c_byte },
- { "INIT_ZM_I2C_BYTE" , 0x4D, init_zm_i2c_byte },
- { "INIT_ZM_I2C" , 0x4E, init_zm_i2c },
- { "INIT_TMDS" , 0x4F, init_tmds },
- { "INIT_ZM_TMDS_GROUP" , 0x50, init_zm_tmds_group },
- { "INIT_CR_INDEX_ADDRESS_LATCHED" , 0x51, init_cr_idx_adr_latch },
- { "INIT_CR" , 0x52, init_cr },
- { "INIT_ZM_CR" , 0x53, init_zm_cr },
- { "INIT_ZM_CR_GROUP" , 0x54, init_zm_cr_group },
- { "INIT_CONDITION_TIME" , 0x56, init_condition_time },
- { "INIT_LTIME" , 0x57, init_ltime },
- { "INIT_ZM_REG_SEQUENCE" , 0x58, init_zm_reg_sequence },
- /* INIT_INDIRECT_REG (0x5A, 7, 0, 0) removed due to no example of use */
- { "INIT_SUB_DIRECT" , 0x5B, init_sub_direct },
- { "INIT_I2C_IF" , 0x5E, init_i2c_if },
- { "INIT_COPY_NV_REG" , 0x5F, init_copy_nv_reg },
- { "INIT_ZM_INDEX_IO" , 0x62, init_zm_index_io },
- { "INIT_COMPUTE_MEM" , 0x63, init_compute_mem },
- { "INIT_RESET" , 0x65, init_reset },
- { "INIT_CONFIGURE_MEM" , 0x66, init_configure_mem },
- { "INIT_CONFIGURE_CLK" , 0x67, init_configure_clk },
- { "INIT_CONFIGURE_PREINIT" , 0x68, init_configure_preinit },
- { "INIT_IO" , 0x69, init_io },
- { "INIT_SUB" , 0x6B, init_sub },
- { "INIT_RAM_CONDITION" , 0x6D, init_ram_condition },
- { "INIT_NV_REG" , 0x6E, init_nv_reg },
- { "INIT_MACRO" , 0x6F, init_macro },
- { "INIT_DONE" , 0x71, init_done },
- { "INIT_RESUME" , 0x72, init_resume },
- /* INIT_RAM_CONDITION2 (0x73, 9, 0, 0) removed due to no example of use */
- { "INIT_TIME" , 0x74, init_time },
- { "INIT_CONDITION" , 0x75, init_condition },
- { "INIT_IO_CONDITION" , 0x76, init_io_condition },
- { "INIT_INDEX_IO" , 0x78, init_index_io },
- { "INIT_PLL" , 0x79, init_pll },
- { "INIT_ZM_REG" , 0x7A, init_zm_reg },
- { "INIT_RAM_RESTRICT_PLL" , 0x87, init_ram_restrict_pll },
- { "INIT_8C" , 0x8C, init_8c },
- { "INIT_8D" , 0x8D, init_8d },
- { "INIT_GPIO" , 0x8E, init_gpio },
- { "INIT_RAM_RESTRICT_ZM_REG_GROUP" , 0x8F, init_ram_restrict_zm_reg_group },
- { "INIT_COPY_ZM_REG" , 0x90, init_copy_zm_reg },
- { "INIT_ZM_REG_GROUP_ADDRESS_LATCHED" , 0x91, init_zm_reg_group_addr_latched },
- { "INIT_RESERVED" , 0x92, init_reserved },
- { "INIT_96" , 0x96, init_96 },
- { "INIT_97" , 0x97, init_97 },
- { "INIT_AUXCH" , 0x98, init_auxch },
- { "INIT_ZM_AUXCH" , 0x99, init_zm_auxch },
- { "INIT_I2C_LONG_IF" , 0x9A, init_i2c_long_if },
- { NULL , 0 , NULL }
-};
-
-#define MAX_TABLE_OPS 1000
-
-static int
-parse_init_table(struct nvbios *bios, unsigned int offset,
- struct init_exec *iexec)
-{
- /*
- * Parses all commands in an init table.
- *
- * We start out executing all commands found in the init table. Some
- * opcodes may change the status of iexec->execute to SKIP, which will
- * cause the following opcodes to perform no operation until the value
- * is changed back to EXECUTE.
- */
-
- int count = 0, i, ret;
- uint8_t id;
-
- /*
- * Loop until INIT_DONE causes us to break out of the loop
- * (or until offset > bios length just in case... )
- * (and no more than MAX_TABLE_OPS iterations, just in case... )
- */
- while ((offset < bios->length) && (count++ < MAX_TABLE_OPS)) {
- id = bios->data[offset];
-
- /* Find matching id in itbl_entry */
- for (i = 0; itbl_entry[i].name && (itbl_entry[i].id != id); i++)
- ;
-
- if (!itbl_entry[i].name) {
- NV_ERROR(bios->dev,
- "0x%04X: Init table command not found: "
- "0x%02X\n", offset, id);
- return -ENOENT;
- }
-
- BIOSLOG(bios, "0x%04X: [ (0x%02X) - %s ]\n", offset,
- itbl_entry[i].id, itbl_entry[i].name);
-
- /* execute eventual command handler */
- ret = (*itbl_entry[i].handler)(bios, offset, iexec);
- if (ret < 0) {
- NV_ERROR(bios->dev, "0x%04X: Failed parsing init "
- "table opcode: %s %d\n", offset,
- itbl_entry[i].name, ret);
- }
-
- if (ret <= 0)
- break;
-
- /*
- * Add the offset of the current command including all data
- * of that command. The offset will then be pointing on the
- * next op code.
- */
- offset += ret;
- }
-
- if (offset >= bios->length)
- NV_WARN(bios->dev,
- "Offset 0x%04X greater than known bios image length. "
- "Corrupt image?\n", offset);
- if (count >= MAX_TABLE_OPS)
- NV_WARN(bios->dev,
- "More than %d opcodes to a table is unlikely, "
- "is the bios image corrupt?\n", MAX_TABLE_OPS);
-
- return 0;
-}
-
-static void
-parse_init_tables(struct nvbios *bios)
-{
- /* Loops and calls parse_init_table() for each present table. */
-
- int i = 0;
- uint16_t table;
- struct init_exec iexec = {true, false};
-
- if (bios->old_style_init) {
- if (bios->init_script_tbls_ptr)
- parse_init_table(bios, bios->init_script_tbls_ptr, &iexec);
- if (bios->extra_init_script_tbl_ptr)
- parse_init_table(bios, bios->extra_init_script_tbl_ptr, &iexec);
-
- return;
- }
-
- while ((table = ROM16(bios->data[bios->init_script_tbls_ptr + i]))) {
- NV_INFO(bios->dev,
- "Parsing VBIOS init table %d at offset 0x%04X\n",
- i / 2, table);
- BIOSLOG(bios, "0x%04X: ------ Executing following commands ------\n", table);
-
- parse_init_table(bios, table, &iexec);
- i += 2;
- }
-}
-
-static uint16_t clkcmptable(struct nvbios *bios, uint16_t clktable, int pxclk)
-{
- int compare_record_len, i = 0;
- uint16_t compareclk, scriptptr = 0;
-
- if (bios->major_version < 5) /* pre BIT */
- compare_record_len = 3;
- else
- compare_record_len = 4;
-
- do {
- compareclk = ROM16(bios->data[clktable + compare_record_len * i]);
- if (pxclk >= compareclk * 10) {
- if (bios->major_version < 5) {
- uint8_t tmdssub = bios->data[clktable + 2 + compare_record_len * i];
- scriptptr = ROM16(bios->data[bios->init_script_tbls_ptr + tmdssub * 2]);
- } else
- scriptptr = ROM16(bios->data[clktable + 2 + compare_record_len * i]);
- break;
- }
- i++;
- } while (compareclk);
-
- return scriptptr;
-}
-
-static void
-run_digital_op_script(struct drm_device *dev, uint16_t scriptptr,
- struct dcb_entry *dcbent, int head, bool dl)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- struct init_exec iexec = {true, false};
-
- NV_TRACE(dev, "0x%04X: Parsing digital output script table\n",
- scriptptr);
- bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, NV_CIO_CRE_44,
- head ? NV_CIO_CRE_44_HEADB : NV_CIO_CRE_44_HEADA);
- /* note: if dcb entries have been merged, index may be misleading */
- NVWriteVgaCrtc5758(dev, head, 0, dcbent->index);
- parse_init_table(bios, scriptptr, &iexec);
-
- nv04_dfp_bind_head(dev, dcbent, head, dl);
-}
-
-static int call_lvds_manufacturer_script(struct drm_device *dev, struct dcb_entry *dcbent, int head, enum LVDS_script script)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- uint8_t sub = bios->data[bios->fp.xlated_entry + script] + (bios->fp.link_c_increment && dcbent->or & OUTPUT_C ? 1 : 0);
- uint16_t scriptofs = ROM16(bios->data[bios->init_script_tbls_ptr + sub * 2]);
-
- if (!bios->fp.xlated_entry || !sub || !scriptofs)
- return -EINVAL;
-
- run_digital_op_script(dev, scriptofs, dcbent, head, bios->fp.dual_link);
-
- if (script == LVDS_PANEL_OFF) {
- /* off-on delay in ms */
- msleep(ROM16(bios->data[bios->fp.xlated_entry + 7]));
- }
-#ifdef __powerpc__
- /* Powerbook specific quirks */
- if (script == LVDS_RESET &&
- (dev->pci_device == 0x0179 || dev->pci_device == 0x0189 ||
- dev->pci_device == 0x0329))
- nv_write_tmds(dev, dcbent->or, 0, 0x02, 0x72);
-#endif
-
- return 0;
-}
-
-static int run_lvds_table(struct drm_device *dev, struct dcb_entry *dcbent, int head, enum LVDS_script script, int pxclk)
-{
- /*
- * The BIT LVDS table's header has the information to setup the
- * necessary registers. Following the standard 4 byte header are:
- * A bitmask byte and a dual-link transition pxclk value for use in
- * selecting the init script when not using straps; 4 script pointers
- * for panel power, selected by output and on/off; and 8 table pointers
- * for panel init, the needed one determined by output, and bits in the
- * conf byte. These tables are similar to the TMDS tables, consisting
- * of a list of pxclks and script pointers.
- */
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- unsigned int outputset = (dcbent->or == 4) ? 1 : 0;
- uint16_t scriptptr = 0, clktable;
-
- /*
- * For now we assume version 3.0 table - g80 support will need some
- * changes
- */
-
- switch (script) {
- case LVDS_INIT:
- return -ENOSYS;
- case LVDS_BACKLIGHT_ON:
- case LVDS_PANEL_ON:
- scriptptr = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 7 + outputset * 2]);
- break;
- case LVDS_BACKLIGHT_OFF:
- case LVDS_PANEL_OFF:
- scriptptr = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 11 + outputset * 2]);
- break;
- case LVDS_RESET:
- clktable = bios->fp.lvdsmanufacturerpointer + 15;
- if (dcbent->or == 4)
- clktable += 8;
-
- if (dcbent->lvdsconf.use_straps_for_mode) {
- if (bios->fp.dual_link)
- clktable += 4;
- if (bios->fp.if_is_24bit)
- clktable += 2;
- } else {
- /* using EDID */
- int cmpval_24bit = (dcbent->or == 4) ? 4 : 1;
-
- if (bios->fp.dual_link) {
- clktable += 4;
- cmpval_24bit <<= 1;
- }
-
- if (bios->fp.strapless_is_24bit & cmpval_24bit)
- clktable += 2;
- }
-
- clktable = ROM16(bios->data[clktable]);
- if (!clktable) {
- NV_ERROR(dev, "Pixel clock comparison table not found\n");
- return -ENOENT;
- }
- scriptptr = clkcmptable(bios, clktable, pxclk);
- }
-
- if (!scriptptr) {
- NV_ERROR(dev, "LVDS output init script not found\n");
- return -ENOENT;
- }
- run_digital_op_script(dev, scriptptr, dcbent, head, bios->fp.dual_link);
-
- return 0;
-}
-
-int call_lvds_script(struct drm_device *dev, struct dcb_entry *dcbent, int head, enum LVDS_script script, int pxclk)
-{
- /*
- * LVDS operations are multiplexed in an effort to present a single API
- * which works with two vastly differing underlying structures.
- * This acts as the demux
- */
-
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- uint8_t lvds_ver = bios->data[bios->fp.lvdsmanufacturerpointer];
- uint32_t sel_clk_binding, sel_clk;
- int ret;
-
- if (bios->fp.last_script_invoc == (script << 1 | head) || !lvds_ver ||
- (lvds_ver >= 0x30 && script == LVDS_INIT))
- return 0;
-
- if (!bios->fp.lvds_init_run) {
- bios->fp.lvds_init_run = true;
- call_lvds_script(dev, dcbent, head, LVDS_INIT, pxclk);
- }
-
- if (script == LVDS_PANEL_ON && bios->fp.reset_after_pclk_change)
- call_lvds_script(dev, dcbent, head, LVDS_RESET, pxclk);
- if (script == LVDS_RESET && bios->fp.power_off_for_reset)
- call_lvds_script(dev, dcbent, head, LVDS_PANEL_OFF, pxclk);
-
- NV_TRACE(dev, "Calling LVDS script %d:\n", script);
-
- /* don't let script change pll->head binding */
- sel_clk_binding = bios_rd32(bios, NV_PRAMDAC_SEL_CLK) & 0x50000;
-
- if (lvds_ver < 0x30)
- ret = call_lvds_manufacturer_script(dev, dcbent, head, script);
- else
- ret = run_lvds_table(dev, dcbent, head, script, pxclk);
-
- bios->fp.last_script_invoc = (script << 1 | head);
-
- sel_clk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK) & ~0x50000;
- NVWriteRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK, sel_clk | sel_clk_binding);
- /* some scripts set a value in NV_PBUS_POWERCTRL_2 and break video overlay */
- nvWriteMC(dev, NV_PBUS_POWERCTRL_2, 0);
-
- return ret;
-}
-
-struct lvdstableheader {
- uint8_t lvds_ver, headerlen, recordlen;
-};
-
-static int parse_lvds_manufacturer_table_header(struct drm_device *dev, struct nvbios *bios, struct lvdstableheader *lth)
-{
- /*
- * BMP version (0xa) LVDS table has a simple header of version and
- * record length. The BIT LVDS table has the typical BIT table header:
- * version byte, header length byte, record length byte, and a byte for
- * the maximum number of records that can be held in the table.
- */
-
- uint8_t lvds_ver, headerlen, recordlen;
-
- memset(lth, 0, sizeof(struct lvdstableheader));
-
- if (bios->fp.lvdsmanufacturerpointer == 0x0) {
- NV_ERROR(dev, "Pointer to LVDS manufacturer table invalid\n");
- return -EINVAL;
- }
-
- lvds_ver = bios->data[bios->fp.lvdsmanufacturerpointer];
-
- switch (lvds_ver) {
- case 0x0a: /* pre NV40 */
- headerlen = 2;
- recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1];
- break;
- case 0x30: /* NV4x */
- headerlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1];
- if (headerlen < 0x1f) {
- NV_ERROR(dev, "LVDS table header not understood\n");
- return -EINVAL;
- }
- recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 2];
- break;
- case 0x40: /* G80/G90 */
- headerlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1];
- if (headerlen < 0x7) {
- NV_ERROR(dev, "LVDS table header not understood\n");
- return -EINVAL;
- }
- recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 2];
- break;
- default:
- NV_ERROR(dev,
- "LVDS table revision %d.%d not currently supported\n",
- lvds_ver >> 4, lvds_ver & 0xf);
- return -ENOSYS;
- }
-
- lth->lvds_ver = lvds_ver;
- lth->headerlen = headerlen;
- lth->recordlen = recordlen;
-
- return 0;
-}
-
-static int
-get_fp_strap(struct drm_device *dev, struct nvbios *bios)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
-
- /*
- * The fp strap is normally dictated by the "User Strap" in
- * PEXTDEV_BOOT_0[20:16], but on BMP cards when bit 2 of the
- * Internal_Flags struct at 0x48 is set, the user strap gets overriden
- * by the PCI subsystem ID during POST, but not before the previous user
- * strap has been committed to CR58 for CR57=0xf on head A, which may be
- * read and used instead
- */
-
- if (bios->major_version < 5 && bios->data[0x48] & 0x4)
- return NVReadVgaCrtc5758(dev, 0, 0xf) & 0xf;
-
- if (dev_priv->card_type >= NV_50)
- return (bios_rd32(bios, NV_PEXTDEV_BOOT_0) >> 24) & 0xf;
- else
- return (bios_rd32(bios, NV_PEXTDEV_BOOT_0) >> 16) & 0xf;
-}
-
-static int parse_fp_mode_table(struct drm_device *dev, struct nvbios *bios)
-{
- uint8_t *fptable;
- uint8_t fptable_ver, headerlen = 0, recordlen, fpentries = 0xf, fpindex;
- int ret, ofs, fpstrapping;
- struct lvdstableheader lth;
-
- if (bios->fp.fptablepointer == 0x0) {
- /* Apple cards don't have the fp table; the laptops use DDC */
- /* The table is also missing on some x86 IGPs */
-#ifndef __powerpc__
- NV_ERROR(dev, "Pointer to flat panel table invalid\n");
-#endif
- bios->digital_min_front_porch = 0x4b;
- return 0;
- }
-
- fptable = &bios->data[bios->fp.fptablepointer];
- fptable_ver = fptable[0];
-
- switch (fptable_ver) {
- /*
- * BMP version 0x5.0x11 BIOSen have version 1 like tables, but no
- * version field, and miss one of the spread spectrum/PWM bytes.
- * This could affect early GF2Go parts (not seen any appropriate ROMs
- * though). Here we assume that a version of 0x05 matches this case
- * (combining with a BMP version check would be better), as the
- * common case for the panel type field is 0x0005, and that is in
- * fact what we are reading the first byte of.
- */
- case 0x05: /* some NV10, 11, 15, 16 */
- recordlen = 42;
- ofs = -1;
- break;
- case 0x10: /* some NV15/16, and NV11+ */
- recordlen = 44;
- ofs = 0;
- break;
- case 0x20: /* NV40+ */
- headerlen = fptable[1];
- recordlen = fptable[2];
- fpentries = fptable[3];
- /*
- * fptable[4] is the minimum
- * RAMDAC_FP_HCRTC -> RAMDAC_FP_HSYNC_START gap
- */
- bios->digital_min_front_porch = fptable[4];
- ofs = -7;
- break;
- default:
- NV_ERROR(dev,
- "FP table revision %d.%d not currently supported\n",
- fptable_ver >> 4, fptable_ver & 0xf);
- return -ENOSYS;
- }
-
- if (!bios->is_mobile) /* !mobile only needs digital_min_front_porch */
- return 0;
-
- ret = parse_lvds_manufacturer_table_header(dev, bios, <h);
- if (ret)
- return ret;
-
- if (lth.lvds_ver == 0x30 || lth.lvds_ver == 0x40) {
- bios->fp.fpxlatetableptr = bios->fp.lvdsmanufacturerpointer +
- lth.headerlen + 1;
- bios->fp.xlatwidth = lth.recordlen;
- }
- if (bios->fp.fpxlatetableptr == 0x0) {
- NV_ERROR(dev, "Pointer to flat panel xlat table invalid\n");
- return -EINVAL;
- }
-
- fpstrapping = get_fp_strap(dev, bios);
-
- fpindex = bios->data[bios->fp.fpxlatetableptr +
- fpstrapping * bios->fp.xlatwidth];
-
- if (fpindex > fpentries) {
- NV_ERROR(dev, "Bad flat panel table index\n");
- return -ENOENT;
- }
-
- /* nv4x cards need both a strap value and fpindex of 0xf to use DDC */
- if (lth.lvds_ver > 0x10)
- bios->fp_no_ddc = fpstrapping != 0xf || fpindex != 0xf;
-
- /*
- * If either the strap or xlated fpindex value are 0xf there is no
- * panel using a strap-derived bios mode present. this condition
- * includes, but is different from, the DDC panel indicator above
- */
- if (fpstrapping == 0xf || fpindex == 0xf)
- return 0;
-
- bios->fp.mode_ptr = bios->fp.fptablepointer + headerlen +
- recordlen * fpindex + ofs;
-
- NV_TRACE(dev, "BIOS FP mode: %dx%d (%dkHz pixel clock)\n",
- ROM16(bios->data[bios->fp.mode_ptr + 11]) + 1,
- ROM16(bios->data[bios->fp.mode_ptr + 25]) + 1,
- ROM16(bios->data[bios->fp.mode_ptr + 7]) * 10);
-
- return 0;
-}
-
-bool nouveau_bios_fp_mode(struct drm_device *dev, struct drm_display_mode *mode)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- uint8_t *mode_entry = &bios->data[bios->fp.mode_ptr];
-
- if (!mode) /* just checking whether we can produce a mode */
- return bios->fp.mode_ptr;
-
- memset(mode, 0, sizeof(struct drm_display_mode));
- /*
- * For version 1.0 (version in byte 0):
- * bytes 1-2 are "panel type", including bits on whether Colour/mono,
- * single/dual link, and type (TFT etc.)
- * bytes 3-6 are bits per colour in RGBX
- */
- mode->clock = ROM16(mode_entry[7]) * 10;
- /* bytes 9-10 is HActive */
- mode->hdisplay = ROM16(mode_entry[11]) + 1;
- /*
- * bytes 13-14 is HValid Start
- * bytes 15-16 is HValid End
- */
- mode->hsync_start = ROM16(mode_entry[17]) + 1;
- mode->hsync_end = ROM16(mode_entry[19]) + 1;
- mode->htotal = ROM16(mode_entry[21]) + 1;
- /* bytes 23-24, 27-30 similarly, but vertical */
- mode->vdisplay = ROM16(mode_entry[25]) + 1;
- mode->vsync_start = ROM16(mode_entry[31]) + 1;
- mode->vsync_end = ROM16(mode_entry[33]) + 1;
- mode->vtotal = ROM16(mode_entry[35]) + 1;
- mode->flags |= (mode_entry[37] & 0x10) ?
- DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
- mode->flags |= (mode_entry[37] & 0x1) ?
- DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
- /*
- * bytes 38-39 relate to spread spectrum settings
- * bytes 40-43 are something to do with PWM
- */
-
- mode->status = MODE_OK;
- mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
- drm_mode_set_name(mode);
- return bios->fp.mode_ptr;
-}
-
-int nouveau_bios_parse_lvds_table(struct drm_device *dev, int pxclk, bool *dl, bool *if_is_24bit)
-{
- /*
- * The LVDS table header is (mostly) described in
- * parse_lvds_manufacturer_table_header(): the BIT header additionally
- * contains the dual-link transition pxclk (in 10s kHz), at byte 5 - if
- * straps are not being used for the panel, this specifies the frequency
- * at which modes should be set up in the dual link style.
- *
- * Following the header, the BMP (ver 0xa) table has several records,
- * indexed by a separate xlat table, indexed in turn by the fp strap in
- * EXTDEV_BOOT. Each record had a config byte, followed by 6 script
- * numbers for use by INIT_SUB which controlled panel init and power,
- * and finally a dword of ms to sleep between power off and on
- * operations.
- *
- * In the BIT versions, the table following the header serves as an
- * integrated config and xlat table: the records in the table are
- * indexed by the FP strap nibble in EXTDEV_BOOT, and each record has
- * two bytes - the first as a config byte, the second for indexing the
- * fp mode table pointed to by the BIT 'D' table
- *
- * DDC is not used until after card init, so selecting the correct table
- * entry and setting the dual link flag for EDID equipped panels,
- * requiring tests against the native-mode pixel clock, cannot be done
- * until later, when this function should be called with non-zero pxclk
- */
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- int fpstrapping = get_fp_strap(dev, bios), lvdsmanufacturerindex = 0;
- struct lvdstableheader lth;
- uint16_t lvdsofs;
- int ret, chip_version = bios->chip_version;
-
- ret = parse_lvds_manufacturer_table_header(dev, bios, <h);
- if (ret)
- return ret;
-
- switch (lth.lvds_ver) {
- case 0x0a: /* pre NV40 */
- lvdsmanufacturerindex = bios->data[
- bios->fp.fpxlatemanufacturertableptr +
- fpstrapping];
-
- /* we're done if this isn't the EDID panel case */
- if (!pxclk)
- break;
-
- if (chip_version < 0x25) {
- /* nv17 behaviour
- *
- * It seems the old style lvds script pointer is reused
- * to select 18/24 bit colour depth for EDID panels.
- */
- lvdsmanufacturerindex =
- (bios->legacy.lvds_single_a_script_ptr & 1) ?
- 2 : 0;
- if (pxclk >= bios->fp.duallink_transition_clk)
- lvdsmanufacturerindex++;
- } else if (chip_version < 0x30) {
- /* nv28 behaviour (off-chip encoder)
- *
- * nv28 does a complex dance of first using byte 121 of
- * the EDID to choose the lvdsmanufacturerindex, then
- * later attempting to match the EDID manufacturer and
- * product IDs in a table (signature 'pidt' (panel id
- * table?)), setting an lvdsmanufacturerindex of 0 and
- * an fp strap of the match index (or 0xf if none)
- */
- lvdsmanufacturerindex = 0;
- } else {
- /* nv31, nv34 behaviour */
- lvdsmanufacturerindex = 0;
- if (pxclk >= bios->fp.duallink_transition_clk)
- lvdsmanufacturerindex = 2;
- if (pxclk >= 140000)
- lvdsmanufacturerindex = 3;
- }
-
- /*
- * nvidia set the high nibble of (cr57=f, cr58) to
- * lvdsmanufacturerindex in this case; we don't
- */
- break;
- case 0x30: /* NV4x */
- case 0x40: /* G80/G90 */
- lvdsmanufacturerindex = fpstrapping;
- break;
- default:
- NV_ERROR(dev, "LVDS table revision not currently supported\n");
- return -ENOSYS;
- }
-
- lvdsofs = bios->fp.xlated_entry = bios->fp.lvdsmanufacturerpointer + lth.headerlen + lth.recordlen * lvdsmanufacturerindex;
- switch (lth.lvds_ver) {
- case 0x0a:
- bios->fp.power_off_for_reset = bios->data[lvdsofs] & 1;
- bios->fp.reset_after_pclk_change = bios->data[lvdsofs] & 2;
- bios->fp.dual_link = bios->data[lvdsofs] & 4;
- bios->fp.link_c_increment = bios->data[lvdsofs] & 8;
- *if_is_24bit = bios->data[lvdsofs] & 16;
- break;
- case 0x30:
- case 0x40:
- /*
- * No sign of the "power off for reset" or "reset for panel
- * on" bits, but it's safer to assume we should
- */
- bios->fp.power_off_for_reset = true;
- bios->fp.reset_after_pclk_change = true;
-
- /*
- * It's ok lvdsofs is wrong for nv4x edid case; dual_link is
- * over-written, and if_is_24bit isn't used
- */
- bios->fp.dual_link = bios->data[lvdsofs] & 1;
- bios->fp.if_is_24bit = bios->data[lvdsofs] & 2;
- bios->fp.strapless_is_24bit = bios->data[bios->fp.lvdsmanufacturerpointer + 4];
- bios->fp.duallink_transition_clk = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 5]) * 10;
- break;
- }
-
- /* Dell Latitude D620 reports a too-high value for the dual-link
- * transition freq, causing us to program the panel incorrectly.
- *
- * It doesn't appear the VBIOS actually uses its transition freq
- * (90000kHz), instead it uses the "Number of LVDS channels" field
- * out of the panel ID structure (http://www.spwg.org/).
- *
- * For the moment, a quirk will do :)
- */
- if (nv_match_device(dev, 0x01d7, 0x1028, 0x01c2))
- bios->fp.duallink_transition_clk = 80000;
-
- /* set dual_link flag for EDID case */
- if (pxclk && (chip_version < 0x25 || chip_version > 0x28))
- bios->fp.dual_link = (pxclk >= bios->fp.duallink_transition_clk);
-
- *dl = bios->fp.dual_link;
-
- return 0;
-}
-
-static uint8_t *
-bios_output_config_match(struct drm_device *dev, struct dcb_entry *dcbent,
- uint16_t record, int record_len, int record_nr,
- bool match_link)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- uint32_t entry;
- uint16_t table;
- int i, v;
-
- switch (dcbent->type) {
- case OUTPUT_TMDS:
- case OUTPUT_LVDS:
- case OUTPUT_DP:
- break;
- default:
- match_link = false;
- break;
- }
-
- for (i = 0; i < record_nr; i++, record += record_len) {
- table = ROM16(bios->data[record]);
- if (!table)
- continue;
- entry = ROM32(bios->data[table]);
-
- if (match_link) {
- v = (entry & 0x00c00000) >> 22;
- if (!(v & dcbent->sorconf.link))
- continue;
- }
-
- v = (entry & 0x000f0000) >> 16;
- if (!(v & dcbent->or))
- continue;
-
- v = (entry & 0x000000f0) >> 4;
- if (v != dcbent->location)
- continue;
-
- v = (entry & 0x0000000f);
- if (v != dcbent->type)
- continue;
-
- return &bios->data[table];
- }
-
- return NULL;
-}
-
-void *
-nouveau_bios_dp_table(struct drm_device *dev, struct dcb_entry *dcbent,
- int *length)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- uint8_t *table;
-
- if (!bios->display.dp_table_ptr) {
- NV_ERROR(dev, "No pointer to DisplayPort table\n");
- return NULL;
- }
- table = &bios->data[bios->display.dp_table_ptr];
-
- if (table[0] != 0x20 && table[0] != 0x21) {
- NV_ERROR(dev, "DisplayPort table version 0x%02x unknown\n",
- table[0]);
- return NULL;
- }
-
- *length = table[4];
- return bios_output_config_match(dev, dcbent,
- bios->display.dp_table_ptr + table[1],
- table[2], table[3], table[0] >= 0x21);
-}
-
-int
-nouveau_bios_run_display_table(struct drm_device *dev, struct dcb_entry *dcbent,
- uint32_t sub, int pxclk)
-{
- /*
- * The display script table is located by the BIT 'U' table.
- *
- * It contains an array of pointers to various tables describing
- * a particular output type. The first 32-bits of the output
- * tables contains similar information to a DCB entry, and is
- * used to decide whether that particular table is suitable for
- * the output you want to access.
- *
- * The "record header length" field here seems to indicate the
- * offset of the first configuration entry in the output tables.
- * This is 10 on most cards I've seen, but 12 has been witnessed
- * on DP cards, and there's another script pointer within the
- * header.
- *
- * offset + 0 ( 8 bits): version
- * offset + 1 ( 8 bits): header length
- * offset + 2 ( 8 bits): record length
- * offset + 3 ( 8 bits): number of records
- * offset + 4 ( 8 bits): record header length
- * offset + 5 (16 bits): pointer to first output script table
- */
-
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- uint8_t *table = &bios->data[bios->display.script_table_ptr];
- uint8_t *otable = NULL;
- uint16_t script;
- int i = 0;
-
- if (!bios->display.script_table_ptr) {
- NV_ERROR(dev, "No pointer to output script table\n");
- return 1;
- }
-
- /*
- * Nothing useful has been in any of the pre-2.0 tables I've seen,
- * so until they are, we really don't need to care.
- */
- if (table[0] < 0x20)
- return 1;
-
- if (table[0] != 0x20 && table[0] != 0x21) {
- NV_ERROR(dev, "Output script table version 0x%02x unknown\n",
- table[0]);
- return 1;
- }
-
- /*
- * The output script tables describing a particular output type
- * look as follows:
- *
- * offset + 0 (32 bits): output this table matches (hash of DCB)
- * offset + 4 ( 8 bits): unknown
- * offset + 5 ( 8 bits): number of configurations
- * offset + 6 (16 bits): pointer to some script
- * offset + 8 (16 bits): pointer to some script
- *
- * headerlen == 10
- * offset + 10 : configuration 0
- *
- * headerlen == 12
- * offset + 10 : pointer to some script
- * offset + 12 : configuration 0
- *
- * Each config entry is as follows:
- *
- * offset + 0 (16 bits): unknown, assumed to be a match value
- * offset + 2 (16 bits): pointer to script table (clock set?)
- * offset + 4 (16 bits): pointer to script table (reset?)
- *
- * There doesn't appear to be a count value to say how many
- * entries exist in each script table, instead, a 0 value in
- * the first 16-bit word seems to indicate both the end of the
- * list and the default entry. The second 16-bit word in the
- * script tables is a pointer to the script to execute.
- */
-
- NV_DEBUG_KMS(dev, "Searching for output entry for %d %d %d\n",
- dcbent->type, dcbent->location, dcbent->or);
- otable = bios_output_config_match(dev, dcbent, table[1] +
- bios->display.script_table_ptr,
- table[2], table[3], table[0] >= 0x21);
- if (!otable) {
- NV_DEBUG_KMS(dev, "failed to match any output table\n");
- return 1;
- }
-
- if (pxclk < -2 || pxclk > 0) {
- /* Try to find matching script table entry */
- for (i = 0; i < otable[5]; i++) {
- if (ROM16(otable[table[4] + i*6]) == sub)
- break;
- }
-
- if (i == otable[5]) {
- NV_ERROR(dev, "Table 0x%04x not found for %d/%d, "
- "using first\n",
- sub, dcbent->type, dcbent->or);
- i = 0;
- }
- }
-
- if (pxclk == 0) {
- script = ROM16(otable[6]);
- if (!script) {
- NV_DEBUG_KMS(dev, "output script 0 not found\n");
- return 1;
- }
-
- NV_DEBUG_KMS(dev, "0x%04X: parsing output script 0\n", script);
- nouveau_bios_run_init_table(dev, script, dcbent);
- } else
- if (pxclk == -1) {
- script = ROM16(otable[8]);
- if (!script) {
- NV_DEBUG_KMS(dev, "output script 1 not found\n");
- return 1;
- }
-
- NV_DEBUG_KMS(dev, "0x%04X: parsing output script 1\n", script);
- nouveau_bios_run_init_table(dev, script, dcbent);
- } else
- if (pxclk == -2) {
- if (table[4] >= 12)
- script = ROM16(otable[10]);
- else
- script = 0;
- if (!script) {
- NV_DEBUG_KMS(dev, "output script 2 not found\n");
- return 1;
- }
-
- NV_DEBUG_KMS(dev, "0x%04X: parsing output script 2\n", script);
- nouveau_bios_run_init_table(dev, script, dcbent);
- } else
- if (pxclk > 0) {
- script = ROM16(otable[table[4] + i*6 + 2]);
- if (script)
- script = clkcmptable(bios, script, pxclk);
- if (!script) {
- NV_DEBUG_KMS(dev, "clock script 0 not found\n");
- return 1;
- }
-
- NV_DEBUG_KMS(dev, "0x%04X: parsing clock script 0\n", script);
- nouveau_bios_run_init_table(dev, script, dcbent);
- } else
- if (pxclk < 0) {
- script = ROM16(otable[table[4] + i*6 + 4]);
- if (script)
- script = clkcmptable(bios, script, -pxclk);
- if (!script) {
- NV_DEBUG_KMS(dev, "clock script 1 not found\n");
- return 1;
- }
-
- NV_DEBUG_KMS(dev, "0x%04X: parsing clock script 1\n", script);
- nouveau_bios_run_init_table(dev, script, dcbent);
- }
-
- return 0;
-}
-
-
-int run_tmds_table(struct drm_device *dev, struct dcb_entry *dcbent, int head, int pxclk)
-{
- /*
- * the pxclk parameter is in kHz
- *
- * This runs the TMDS regs setting code found on BIT bios cards
- *
- * For ffs(or) == 1 use the first table, for ffs(or) == 2 and
- * ffs(or) == 3, use the second.
- */
-
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- int cv = bios->chip_version;
- uint16_t clktable = 0, scriptptr;
- uint32_t sel_clk_binding, sel_clk;
-
- /* pre-nv17 off-chip tmds uses scripts, post nv17 doesn't */
- if (cv >= 0x17 && cv != 0x1a && cv != 0x20 &&
- dcbent->location != DCB_LOC_ON_CHIP)
- return 0;
-
- switch (ffs(dcbent->or)) {
- case 1:
- clktable = bios->tmds.output0_script_ptr;
- break;
- case 2:
- case 3:
- clktable = bios->tmds.output1_script_ptr;
- break;
- }
-
- if (!clktable) {
- NV_ERROR(dev, "Pixel clock comparison table not found\n");
- return -EINVAL;
- }
-
- scriptptr = clkcmptable(bios, clktable, pxclk);
-
- if (!scriptptr) {
- NV_ERROR(dev, "TMDS output init script not found\n");
- return -ENOENT;
- }
-
- /* don't let script change pll->head binding */
- sel_clk_binding = bios_rd32(bios, NV_PRAMDAC_SEL_CLK) & 0x50000;
- run_digital_op_script(dev, scriptptr, dcbent, head, pxclk >= 165000);
- sel_clk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK) & ~0x50000;
- NVWriteRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK, sel_clk | sel_clk_binding);
-
- return 0;
-}
-
-int get_pll_limits(struct drm_device *dev, uint32_t limit_match, struct pll_lims *pll_lim)
-{
- /*
- * PLL limits table
- *
- * Version 0x10: NV30, NV31
- * One byte header (version), one record of 24 bytes
- * Version 0x11: NV36 - Not implemented
- * Seems to have same record style as 0x10, but 3 records rather than 1
- * Version 0x20: Found on Geforce 6 cards
- * Trivial 4 byte BIT header. 31 (0x1f) byte record length
- * Version 0x21: Found on Geforce 7, 8 and some Geforce 6 cards
- * 5 byte header, fifth byte of unknown purpose. 35 (0x23) byte record
- * length in general, some (integrated) have an extra configuration byte
- * Version 0x30: Found on Geforce 8, separates the register mapping
- * from the limits tables.
- */
-
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- int cv = bios->chip_version, pllindex = 0;
- uint8_t pll_lim_ver = 0, headerlen = 0, recordlen = 0, entries = 0;
- uint32_t crystal_strap_mask, crystal_straps;
-
- if (!bios->pll_limit_tbl_ptr) {
- if (cv == 0x30 || cv == 0x31 || cv == 0x35 || cv == 0x36 ||
- cv >= 0x40) {
- NV_ERROR(dev, "Pointer to PLL limits table invalid\n");
- return -EINVAL;
- }
- } else
- pll_lim_ver = bios->data[bios->pll_limit_tbl_ptr];
-
- crystal_strap_mask = 1 << 6;
- /* open coded dev->twoHeads test */
- if (cv > 0x10 && cv != 0x15 && cv != 0x1a && cv != 0x20)
- crystal_strap_mask |= 1 << 22;
- crystal_straps = nvReadEXTDEV(dev, NV_PEXTDEV_BOOT_0) &
- crystal_strap_mask;
-
- switch (pll_lim_ver) {
- /*
- * We use version 0 to indicate a pre limit table bios (single stage
- * pll) and load the hard coded limits instead.
- */
- case 0:
- break;
- case 0x10:
- case 0x11:
- /*
- * Strictly v0x11 has 3 entries, but the last two don't seem
- * to get used.
- */
- headerlen = 1;
- recordlen = 0x18;
- entries = 1;
- pllindex = 0;
- break;
- case 0x20:
- case 0x21:
- case 0x30:
- case 0x40:
- headerlen = bios->data[bios->pll_limit_tbl_ptr + 1];
- recordlen = bios->data[bios->pll_limit_tbl_ptr + 2];
- entries = bios->data[bios->pll_limit_tbl_ptr + 3];
- break;
- default:
- NV_ERROR(dev, "PLL limits table revision 0x%X not currently "
- "supported\n", pll_lim_ver);
- return -ENOSYS;
- }
-
- /* initialize all members to zero */
- memset(pll_lim, 0, sizeof(struct pll_lims));
-
- if (pll_lim_ver == 0x10 || pll_lim_ver == 0x11) {
- uint8_t *pll_rec = &bios->data[bios->pll_limit_tbl_ptr + headerlen + recordlen * pllindex];
-
- pll_lim->vco1.minfreq = ROM32(pll_rec[0]);
- pll_lim->vco1.maxfreq = ROM32(pll_rec[4]);
- pll_lim->vco2.minfreq = ROM32(pll_rec[8]);
- pll_lim->vco2.maxfreq = ROM32(pll_rec[12]);
- pll_lim->vco1.min_inputfreq = ROM32(pll_rec[16]);
- pll_lim->vco2.min_inputfreq = ROM32(pll_rec[20]);
- pll_lim->vco1.max_inputfreq = pll_lim->vco2.max_inputfreq = INT_MAX;
-
- /* these values taken from nv30/31/36 */
- pll_lim->vco1.min_n = 0x1;
- if (cv == 0x36)
- pll_lim->vco1.min_n = 0x5;
- pll_lim->vco1.max_n = 0xff;
- pll_lim->vco1.min_m = 0x1;
- pll_lim->vco1.max_m = 0xd;
- pll_lim->vco2.min_n = 0x4;
- /*
- * On nv30, 31, 36 (i.e. all cards with two stage PLLs with this
- * table version (apart from nv35)), N2 is compared to
- * maxN2 (0x46) and 10 * maxM2 (0x4), so set maxN2 to 0x28 and
- * save a comparison
- */
- pll_lim->vco2.max_n = 0x28;
- if (cv == 0x30 || cv == 0x35)
- /* only 5 bits available for N2 on nv30/35 */
- pll_lim->vco2.max_n = 0x1f;
- pll_lim->vco2.min_m = 0x1;
- pll_lim->vco2.max_m = 0x4;
- pll_lim->max_log2p = 0x7;
- pll_lim->max_usable_log2p = 0x6;
- } else if (pll_lim_ver == 0x20 || pll_lim_ver == 0x21) {
- uint16_t plloffs = bios->pll_limit_tbl_ptr + headerlen;
- uint32_t reg = 0; /* default match */
- uint8_t *pll_rec;
- int i;
-
- /*
- * First entry is default match, if nothing better. warn if
- * reg field nonzero
- */
- if (ROM32(bios->data[plloffs]))
- NV_WARN(dev, "Default PLL limit entry has non-zero "
- "register field\n");
-
- if (limit_match > MAX_PLL_TYPES)
- /* we've been passed a reg as the match */
- reg = limit_match;
- else /* limit match is a pll type */
- for (i = 1; i < entries && !reg; i++) {
- uint32_t cmpreg = ROM32(bios->data[plloffs + recordlen * i]);
-
- if (limit_match == NVPLL &&
- (cmpreg == NV_PRAMDAC_NVPLL_COEFF || cmpreg == 0x4000))
- reg = cmpreg;
- if (limit_match == MPLL &&
- (cmpreg == NV_PRAMDAC_MPLL_COEFF || cmpreg == 0x4020))
- reg = cmpreg;
- if (limit_match == VPLL1 &&
- (cmpreg == NV_PRAMDAC_VPLL_COEFF || cmpreg == 0x4010))
- reg = cmpreg;
- if (limit_match == VPLL2 &&
- (cmpreg == NV_RAMDAC_VPLL2 || cmpreg == 0x4018))
- reg = cmpreg;
- }
-
- for (i = 1; i < entries; i++)
- if (ROM32(bios->data[plloffs + recordlen * i]) == reg) {
- pllindex = i;
- break;
- }
-
- pll_rec = &bios->data[plloffs + recordlen * pllindex];
-
- BIOSLOG(bios, "Loading PLL limits for reg 0x%08x\n",
- pllindex ? reg : 0);
-
- /*
- * Frequencies are stored in tables in MHz, kHz are more
- * useful, so we convert.
- */
-
- /* What output frequencies can each VCO generate? */
- pll_lim->vco1.minfreq = ROM16(pll_rec[4]) * 1000;
- pll_lim->vco1.maxfreq = ROM16(pll_rec[6]) * 1000;
- pll_lim->vco2.minfreq = ROM16(pll_rec[8]) * 1000;
- pll_lim->vco2.maxfreq = ROM16(pll_rec[10]) * 1000;
-
- /* What input frequencies they accept (past the m-divider)? */
- pll_lim->vco1.min_inputfreq = ROM16(pll_rec[12]) * 1000;
- pll_lim->vco2.min_inputfreq = ROM16(pll_rec[14]) * 1000;
- pll_lim->vco1.max_inputfreq = ROM16(pll_rec[16]) * 1000;
- pll_lim->vco2.max_inputfreq = ROM16(pll_rec[18]) * 1000;
-
- /* What values are accepted as multiplier and divider? */
- pll_lim->vco1.min_n = pll_rec[20];
- pll_lim->vco1.max_n = pll_rec[21];
- pll_lim->vco1.min_m = pll_rec[22];
- pll_lim->vco1.max_m = pll_rec[23];
- pll_lim->vco2.min_n = pll_rec[24];
- pll_lim->vco2.max_n = pll_rec[25];
- pll_lim->vco2.min_m = pll_rec[26];
- pll_lim->vco2.max_m = pll_rec[27];
-
- pll_lim->max_usable_log2p = pll_lim->max_log2p = pll_rec[29];
- if (pll_lim->max_log2p > 0x7)
- /* pll decoding in nv_hw.c assumes never > 7 */
- NV_WARN(dev, "Max log2 P value greater than 7 (%d)\n",
- pll_lim->max_log2p);
- if (cv < 0x60)
- pll_lim->max_usable_log2p = 0x6;
- pll_lim->log2p_bias = pll_rec[30];
-
- if (recordlen > 0x22)
- pll_lim->refclk = ROM32(pll_rec[31]);
-
- if (recordlen > 0x23 && pll_rec[35])
- NV_WARN(dev,
- "Bits set in PLL configuration byte (%x)\n",
- pll_rec[35]);
-
- /* C51 special not seen elsewhere */
- if (cv == 0x51 && !pll_lim->refclk) {
- uint32_t sel_clk = bios_rd32(bios, NV_PRAMDAC_SEL_CLK);
-
- if (((limit_match == NV_PRAMDAC_VPLL_COEFF || limit_match == VPLL1) && sel_clk & 0x20) ||
- ((limit_match == NV_RAMDAC_VPLL2 || limit_match == VPLL2) && sel_clk & 0x80)) {
- if (bios_idxprt_rd(bios, NV_CIO_CRX__COLOR, NV_CIO_CRE_CHIP_ID_INDEX) < 0xa3)
- pll_lim->refclk = 200000;
- else
- pll_lim->refclk = 25000;
- }
- }
- } else if (pll_lim_ver == 0x30) { /* ver 0x30 */
- uint8_t *entry = &bios->data[bios->pll_limit_tbl_ptr + headerlen];
- uint8_t *record = NULL;
- int i;
-
- BIOSLOG(bios, "Loading PLL limits for register 0x%08x\n",
- limit_match);
-
- for (i = 0; i < entries; i++, entry += recordlen) {
- if (ROM32(entry[3]) == limit_match) {
- record = &bios->data[ROM16(entry[1])];
- break;
- }
- }
-
- if (!record) {
- NV_ERROR(dev, "Register 0x%08x not found in PLL "
- "limits table", limit_match);
- return -ENOENT;
- }
-
- pll_lim->vco1.minfreq = ROM16(record[0]) * 1000;
- pll_lim->vco1.maxfreq = ROM16(record[2]) * 1000;
- pll_lim->vco2.minfreq = ROM16(record[4]) * 1000;
- pll_lim->vco2.maxfreq = ROM16(record[6]) * 1000;
- pll_lim->vco1.min_inputfreq = ROM16(record[8]) * 1000;
- pll_lim->vco2.min_inputfreq = ROM16(record[10]) * 1000;
- pll_lim->vco1.max_inputfreq = ROM16(record[12]) * 1000;
- pll_lim->vco2.max_inputfreq = ROM16(record[14]) * 1000;
- pll_lim->vco1.min_n = record[16];
- pll_lim->vco1.max_n = record[17];
- pll_lim->vco1.min_m = record[18];
- pll_lim->vco1.max_m = record[19];
- pll_lim->vco2.min_n = record[20];
- pll_lim->vco2.max_n = record[21];
- pll_lim->vco2.min_m = record[22];
- pll_lim->vco2.max_m = record[23];
- pll_lim->max_usable_log2p = pll_lim->max_log2p = record[25];
- pll_lim->log2p_bias = record[27];
- pll_lim->refclk = ROM32(record[28]);
- } else if (pll_lim_ver) { /* ver 0x40 */
- uint8_t *entry = &bios->data[bios->pll_limit_tbl_ptr + headerlen];
- uint8_t *record = NULL;
- int i;
-
- BIOSLOG(bios, "Loading PLL limits for register 0x%08x\n",
- limit_match);
-
- for (i = 0; i < entries; i++, entry += recordlen) {
- if (ROM32(entry[3]) == limit_match) {
- record = &bios->data[ROM16(entry[1])];
- break;
- }
- }
-
- if (!record) {
- NV_ERROR(dev, "Register 0x%08x not found in PLL "
- "limits table", limit_match);
- return -ENOENT;
- }
-
- pll_lim->vco1.minfreq = ROM16(record[0]) * 1000;
- pll_lim->vco1.maxfreq = ROM16(record[2]) * 1000;
- pll_lim->vco1.min_inputfreq = ROM16(record[4]) * 1000;
- pll_lim->vco1.max_inputfreq = ROM16(record[6]) * 1000;
- pll_lim->vco1.min_m = record[8];
- pll_lim->vco1.max_m = record[9];
- pll_lim->vco1.min_n = record[10];
- pll_lim->vco1.max_n = record[11];
- pll_lim->min_p = record[12];
- pll_lim->max_p = record[13];
- /* where did this go to?? */
- if ((entry[0] & 0xf0) == 0x80)
- pll_lim->refclk = 27000;
- else
- pll_lim->refclk = 100000;
- }
-
- /*
- * By now any valid limit table ought to have set a max frequency for
- * vco1, so if it's zero it's either a pre limit table bios, or one
- * with an empty limit table (seen on nv18)
- */
- if (!pll_lim->vco1.maxfreq) {
- pll_lim->vco1.minfreq = bios->fminvco;
- pll_lim->vco1.maxfreq = bios->fmaxvco;
- pll_lim->vco1.min_inputfreq = 0;
- pll_lim->vco1.max_inputfreq = INT_MAX;
- pll_lim->vco1.min_n = 0x1;
- pll_lim->vco1.max_n = 0xff;
- pll_lim->vco1.min_m = 0x1;
- if (crystal_straps == 0) {
- /* nv05 does this, nv11 doesn't, nv10 unknown */
- if (cv < 0x11)
- pll_lim->vco1.min_m = 0x7;
- pll_lim->vco1.max_m = 0xd;
- } else {
- if (cv < 0x11)
- pll_lim->vco1.min_m = 0x8;
- pll_lim->vco1.max_m = 0xe;
- }
- if (cv < 0x17 || cv == 0x1a || cv == 0x20)
- pll_lim->max_log2p = 4;
- else
- pll_lim->max_log2p = 5;
- pll_lim->max_usable_log2p = pll_lim->max_log2p;
- }
-
- if (!pll_lim->refclk)
- switch (crystal_straps) {
- case 0:
- pll_lim->refclk = 13500;
- break;
- case (1 << 6):
- pll_lim->refclk = 14318;
- break;
- case (1 << 22):
- pll_lim->refclk = 27000;
- break;
- case (1 << 22 | 1 << 6):
- pll_lim->refclk = 25000;
- break;
- }
-
- NV_DEBUG(dev, "pll.vco1.minfreq: %d\n", pll_lim->vco1.minfreq);
- NV_DEBUG(dev, "pll.vco1.maxfreq: %d\n", pll_lim->vco1.maxfreq);
- NV_DEBUG(dev, "pll.vco1.min_inputfreq: %d\n", pll_lim->vco1.min_inputfreq);
- NV_DEBUG(dev, "pll.vco1.max_inputfreq: %d\n", pll_lim->vco1.max_inputfreq);
- NV_DEBUG(dev, "pll.vco1.min_n: %d\n", pll_lim->vco1.min_n);
- NV_DEBUG(dev, "pll.vco1.max_n: %d\n", pll_lim->vco1.max_n);
- NV_DEBUG(dev, "pll.vco1.min_m: %d\n", pll_lim->vco1.min_m);
- NV_DEBUG(dev, "pll.vco1.max_m: %d\n", pll_lim->vco1.max_m);
- if (pll_lim->vco2.maxfreq) {
- NV_DEBUG(dev, "pll.vco2.minfreq: %d\n", pll_lim->vco2.minfreq);
- NV_DEBUG(dev, "pll.vco2.maxfreq: %d\n", pll_lim->vco2.maxfreq);
- NV_DEBUG(dev, "pll.vco2.min_inputfreq: %d\n", pll_lim->vco2.min_inputfreq);
- NV_DEBUG(dev, "pll.vco2.max_inputfreq: %d\n", pll_lim->vco2.max_inputfreq);
- NV_DEBUG(dev, "pll.vco2.min_n: %d\n", pll_lim->vco2.min_n);
- NV_DEBUG(dev, "pll.vco2.max_n: %d\n", pll_lim->vco2.max_n);
- NV_DEBUG(dev, "pll.vco2.min_m: %d\n", pll_lim->vco2.min_m);
- NV_DEBUG(dev, "pll.vco2.max_m: %d\n", pll_lim->vco2.max_m);
- }
- if (!pll_lim->max_p) {
- NV_DEBUG(dev, "pll.max_log2p: %d\n", pll_lim->max_log2p);
- NV_DEBUG(dev, "pll.log2p_bias: %d\n", pll_lim->log2p_bias);
- } else {
- NV_DEBUG(dev, "pll.min_p: %d\n", pll_lim->min_p);
- NV_DEBUG(dev, "pll.max_p: %d\n", pll_lim->max_p);
- }
- NV_DEBUG(dev, "pll.refclk: %d\n", pll_lim->refclk);
-
- return 0;
-}
-
-static void parse_bios_version(struct drm_device *dev, struct nvbios *bios, uint16_t offset)
-{
- /*
- * offset + 0 (8 bits): Micro version
- * offset + 1 (8 bits): Minor version
- * offset + 2 (8 bits): Chip version
- * offset + 3 (8 bits): Major version
- */
-
- bios->major_version = bios->data[offset + 3];
- bios->chip_version = bios->data[offset + 2];
- NV_TRACE(dev, "Bios version %02x.%02x.%02x.%02x\n",
- bios->data[offset + 3], bios->data[offset + 2],
- bios->data[offset + 1], bios->data[offset]);
-}
-
-static void parse_script_table_pointers(struct nvbios *bios, uint16_t offset)
-{
- /*
- * Parses the init table segment for pointers used in script execution.
- *
- * offset + 0 (16 bits): init script tables pointer
- * offset + 2 (16 bits): macro index table pointer
- * offset + 4 (16 bits): macro table pointer
- * offset + 6 (16 bits): condition table pointer
- * offset + 8 (16 bits): io condition table pointer
- * offset + 10 (16 bits): io flag condition table pointer
- * offset + 12 (16 bits): init function table pointer
- */
-
- bios->init_script_tbls_ptr = ROM16(bios->data[offset]);
- bios->macro_index_tbl_ptr = ROM16(bios->data[offset + 2]);
- bios->macro_tbl_ptr = ROM16(bios->data[offset + 4]);
- bios->condition_tbl_ptr = ROM16(bios->data[offset + 6]);
- bios->io_condition_tbl_ptr = ROM16(bios->data[offset + 8]);
- bios->io_flag_condition_tbl_ptr = ROM16(bios->data[offset + 10]);
- bios->init_function_tbl_ptr = ROM16(bios->data[offset + 12]);
-}
-
-static int parse_bit_A_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
-{
- /*
- * Parses the load detect values for g80 cards.
- *
- * offset + 0 (16 bits): loadval table pointer
- */
-
- uint16_t load_table_ptr;
- uint8_t version, headerlen, entrylen, num_entries;
-
- if (bitentry->length != 3) {
- NV_ERROR(dev, "Do not understand BIT A table\n");
- return -EINVAL;
- }
-
- load_table_ptr = ROM16(bios->data[bitentry->offset]);
-
- if (load_table_ptr == 0x0) {
- NV_ERROR(dev, "Pointer to BIT loadval table invalid\n");
- return -EINVAL;
- }
-
- version = bios->data[load_table_ptr];
-
- if (version != 0x10) {
- NV_ERROR(dev, "BIT loadval table version %d.%d not supported\n",
- version >> 4, version & 0xF);
- return -ENOSYS;
- }
-
- headerlen = bios->data[load_table_ptr + 1];
- entrylen = bios->data[load_table_ptr + 2];
- num_entries = bios->data[load_table_ptr + 3];
-
- if (headerlen != 4 || entrylen != 4 || num_entries != 2) {
- NV_ERROR(dev, "Do not understand BIT loadval table\n");
- return -EINVAL;
- }
-
- /* First entry is normal dac, 2nd tv-out perhaps? */
- bios->dactestval = ROM32(bios->data[load_table_ptr + headerlen]) & 0x3ff;
-
- return 0;
-}
-
-static int parse_bit_C_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
-{
- /*
- * offset + 8 (16 bits): PLL limits table pointer
- *
- * There's more in here, but that's unknown.
- */
-
- if (bitentry->length < 10) {
- NV_ERROR(dev, "Do not understand BIT C table\n");
- return -EINVAL;
- }
-
- bios->pll_limit_tbl_ptr = ROM16(bios->data[bitentry->offset + 8]);
-
- return 0;
-}
-
-static int parse_bit_display_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
-{
- /*
- * Parses the flat panel table segment that the bit entry points to.
- * Starting at bitentry->offset:
- *
- * offset + 0 (16 bits): ??? table pointer - seems to have 18 byte
- * records beginning with a freq.
- * offset + 2 (16 bits): mode table pointer
- */
-
- if (bitentry->length != 4) {
- NV_ERROR(dev, "Do not understand BIT display table\n");
- return -EINVAL;
- }
-
- bios->fp.fptablepointer = ROM16(bios->data[bitentry->offset + 2]);
-
- return 0;
-}
-
-static int parse_bit_init_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
-{
- /*
- * Parses the init table segment that the bit entry points to.
- *
- * See parse_script_table_pointers for layout
- */
-
- if (bitentry->length < 14) {
- NV_ERROR(dev, "Do not understand init table\n");
- return -EINVAL;
- }
-
- parse_script_table_pointers(bios, bitentry->offset);
-
- if (bitentry->length >= 16)
- bios->some_script_ptr = ROM16(bios->data[bitentry->offset + 14]);
- if (bitentry->length >= 18)
- bios->init96_tbl_ptr = ROM16(bios->data[bitentry->offset + 16]);
-
- return 0;
-}
-
-static int parse_bit_i_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
-{
- /*
- * BIT 'i' (info?) table
- *
- * offset + 0 (32 bits): BIOS version dword (as in B table)
- * offset + 5 (8 bits): BIOS feature byte (same as for BMP?)
- * offset + 13 (16 bits): pointer to table containing DAC load
- * detection comparison values
- *
- * There's other things in the table, purpose unknown
- */
-
- uint16_t daccmpoffset;
- uint8_t dacver, dacheaderlen;
-
- if (bitentry->length < 6) {
- NV_ERROR(dev, "BIT i table too short for needed information\n");
- return -EINVAL;
- }
-
- parse_bios_version(dev, bios, bitentry->offset);
-
- /*
- * bit 4 seems to indicate a mobile bios (doesn't suffer from BMP's
- * Quadro identity crisis), other bits possibly as for BMP feature byte
- */
- bios->feature_byte = bios->data[bitentry->offset + 5];
- bios->is_mobile = bios->feature_byte & FEATURE_MOBILE;
-
- if (bitentry->length < 15) {
- NV_WARN(dev, "BIT i table not long enough for DAC load "
- "detection comparison table\n");
- return -EINVAL;
- }
-
- daccmpoffset = ROM16(bios->data[bitentry->offset + 13]);
-
- /* doesn't exist on g80 */
- if (!daccmpoffset)
- return 0;
-
- /*
- * The first value in the table, following the header, is the
- * comparison value, the second entry is a comparison value for
- * TV load detection.
- */
-
- dacver = bios->data[daccmpoffset];
- dacheaderlen = bios->data[daccmpoffset + 1];
-
- if (dacver != 0x00 && dacver != 0x10) {
- NV_WARN(dev, "DAC load detection comparison table version "
- "%d.%d not known\n", dacver >> 4, dacver & 0xf);
- return -ENOSYS;
- }
-
- bios->dactestval = ROM32(bios->data[daccmpoffset + dacheaderlen]);
- bios->tvdactestval = ROM32(bios->data[daccmpoffset + dacheaderlen + 4]);
-
- return 0;
-}
-
-static int parse_bit_lvds_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
-{
- /*
- * Parses the LVDS table segment that the bit entry points to.
- * Starting at bitentry->offset:
- *
- * offset + 0 (16 bits): LVDS strap xlate table pointer
- */
-
- if (bitentry->length != 2) {
- NV_ERROR(dev, "Do not understand BIT LVDS table\n");
- return -EINVAL;
- }
-
- /*
- * No idea if it's still called the LVDS manufacturer table, but
- * the concept's close enough.
- */
- bios->fp.lvdsmanufacturerpointer = ROM16(bios->data[bitentry->offset]);
-
- return 0;
-}
-
-static int
-parse_bit_M_tbl_entry(struct drm_device *dev, struct nvbios *bios,
- struct bit_entry *bitentry)
-{
- /*
- * offset + 2 (8 bits): number of options in an
- * INIT_RAM_RESTRICT_ZM_REG_GROUP opcode option set
- * offset + 3 (16 bits): pointer to strap xlate table for RAM
- * restrict option selection
- *
- * There's a bunch of bits in this table other than the RAM restrict
- * stuff that we don't use - their use currently unknown
- */
-
- /*
- * Older bios versions don't have a sufficiently long table for
- * what we want
- */
- if (bitentry->length < 0x5)
- return 0;
-
- if (bitentry->id[1] < 2) {
- bios->ram_restrict_group_count = bios->data[bitentry->offset + 2];
- bios->ram_restrict_tbl_ptr = ROM16(bios->data[bitentry->offset + 3]);
- } else {
- bios->ram_restrict_group_count = bios->data[bitentry->offset + 0];
- bios->ram_restrict_tbl_ptr = ROM16(bios->data[bitentry->offset + 1]);
- }
-
- return 0;
-}
-
-static int parse_bit_tmds_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
-{
- /*
- * Parses the pointer to the TMDS table
- *
- * Starting at bitentry->offset:
- *
- * offset + 0 (16 bits): TMDS table pointer
- *
- * The TMDS table is typically found just before the DCB table, with a
- * characteristic signature of 0x11,0x13 (1.1 being version, 0x13 being
- * length?)
- *
- * At offset +7 is a pointer to a script, which I don't know how to
- * run yet.
- * At offset +9 is a pointer to another script, likewise
- * Offset +11 has a pointer to a table where the first word is a pxclk
- * frequency and the second word a pointer to a script, which should be
- * run if the comparison pxclk frequency is less than the pxclk desired.
- * This repeats for decreasing comparison frequencies
- * Offset +13 has a pointer to a similar table
- * The selection of table (and possibly +7/+9 script) is dictated by
- * "or" from the DCB.
- */
-
- uint16_t tmdstableptr, script1, script2;
-
- if (bitentry->length != 2) {
- NV_ERROR(dev, "Do not understand BIT TMDS table\n");
- return -EINVAL;
- }
-
- tmdstableptr = ROM16(bios->data[bitentry->offset]);
- if (!tmdstableptr) {
- NV_ERROR(dev, "Pointer to TMDS table invalid\n");
- return -EINVAL;
- }
-
- NV_INFO(dev, "TMDS table version %d.%d\n",
- bios->data[tmdstableptr] >> 4, bios->data[tmdstableptr] & 0xf);
-
- /* nv50+ has v2.0, but we don't parse it atm */
- if (bios->data[tmdstableptr] != 0x11)
- return -ENOSYS;
-
- /*
- * These two scripts are odd: they don't seem to get run even when
- * they are not stubbed.
- */
- script1 = ROM16(bios->data[tmdstableptr + 7]);
- script2 = ROM16(bios->data[tmdstableptr + 9]);
- if (bios->data[script1] != 'q' || bios->data[script2] != 'q')
- NV_WARN(dev, "TMDS table script pointers not stubbed\n");
-
- bios->tmds.output0_script_ptr = ROM16(bios->data[tmdstableptr + 11]);
- bios->tmds.output1_script_ptr = ROM16(bios->data[tmdstableptr + 13]);
-
- return 0;
-}
-
-static int
-parse_bit_U_tbl_entry(struct drm_device *dev, struct nvbios *bios,
- struct bit_entry *bitentry)
-{
- /*
- * Parses the pointer to the G80 output script tables
- *
- * Starting at bitentry->offset:
- *
- * offset + 0 (16 bits): output script table pointer
- */
-
- uint16_t outputscripttableptr;
-
- if (bitentry->length != 3) {
- NV_ERROR(dev, "Do not understand BIT U table\n");
- return -EINVAL;
- }
-
- outputscripttableptr = ROM16(bios->data[bitentry->offset]);
- bios->display.script_table_ptr = outputscripttableptr;
- return 0;
-}
-
-static int
-parse_bit_displayport_tbl_entry(struct drm_device *dev, struct nvbios *bios,
- struct bit_entry *bitentry)
-{
- bios->display.dp_table_ptr = ROM16(bios->data[bitentry->offset]);
- return 0;
-}
-
-struct bit_table {
- const char id;
- int (* const parse_fn)(struct drm_device *, struct nvbios *, struct bit_entry *);
-};
-
-#define BIT_TABLE(id, funcid) ((struct bit_table){ id, parse_bit_##funcid##_tbl_entry })
-
-static int
-parse_bit_table(struct nvbios *bios, const uint16_t bitoffset,
- struct bit_table *table)
-{
- struct drm_device *dev = bios->dev;
- uint8_t maxentries = bios->data[bitoffset + 4];
- int i, offset;
- struct bit_entry bitentry;
-
- for (i = 0, offset = bitoffset + 6; i < maxentries; i++, offset += 6) {
- bitentry.id[0] = bios->data[offset];
-
- if (bitentry.id[0] != table->id)
- continue;
-
- bitentry.id[1] = bios->data[offset + 1];
- bitentry.length = ROM16(bios->data[offset + 2]);
- bitentry.offset = ROM16(bios->data[offset + 4]);
-
- return table->parse_fn(dev, bios, &bitentry);
- }
-
- NV_INFO(dev, "BIT table '%c' not found\n", table->id);
- return -ENOSYS;
-}
-
-static int
-parse_bit_structure(struct nvbios *bios, const uint16_t bitoffset)
-{
- int ret;
-
- /*
- * The only restriction on parsing order currently is having 'i' first
- * for use of bios->*_version or bios->feature_byte while parsing;
- * functions shouldn't be actually *doing* anything apart from pulling
- * data from the image into the bios struct, thus no interdependencies
- */
- ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('i', i));
- if (ret) /* info? */
- return ret;
- if (bios->major_version >= 0x60) /* g80+ */
- parse_bit_table(bios, bitoffset, &BIT_TABLE('A', A));
- ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('C', C));
- if (ret)
- return ret;
- parse_bit_table(bios, bitoffset, &BIT_TABLE('D', display));
- ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('I', init));
- if (ret)
- return ret;
- parse_bit_table(bios, bitoffset, &BIT_TABLE('M', M)); /* memory? */
- parse_bit_table(bios, bitoffset, &BIT_TABLE('L', lvds));
- parse_bit_table(bios, bitoffset, &BIT_TABLE('T', tmds));
- parse_bit_table(bios, bitoffset, &BIT_TABLE('U', U));
- parse_bit_table(bios, bitoffset, &BIT_TABLE('d', displayport));
-
- return 0;
-}
-
-static int parse_bmp_structure(struct drm_device *dev, struct nvbios *bios, unsigned int offset)
-{
- /*
- * Parses the BMP structure for useful things, but does not act on them
- *
- * offset + 5: BMP major version
- * offset + 6: BMP minor version
- * offset + 9: BMP feature byte
- * offset + 10: BCD encoded BIOS version
- *
- * offset + 18: init script table pointer (for bios versions < 5.10h)
- * offset + 20: extra init script table pointer (for bios
- * versions < 5.10h)
- *
- * offset + 24: memory init table pointer (used on early bios versions)
- * offset + 26: SDR memory sequencing setup data table
- * offset + 28: DDR memory sequencing setup data table
- *
- * offset + 54: index of I2C CRTC pair to use for CRT output
- * offset + 55: index of I2C CRTC pair to use for TV output
- * offset + 56: index of I2C CRTC pair to use for flat panel output
- * offset + 58: write CRTC index for I2C pair 0
- * offset + 59: read CRTC index for I2C pair 0
- * offset + 60: write CRTC index for I2C pair 1
- * offset + 61: read CRTC index for I2C pair 1
- *
- * offset + 67: maximum internal PLL frequency (single stage PLL)
- * offset + 71: minimum internal PLL frequency (single stage PLL)
- *
- * offset + 75: script table pointers, as described in
- * parse_script_table_pointers
- *
- * offset + 89: TMDS single link output A table pointer
- * offset + 91: TMDS single link output B table pointer
- * offset + 95: LVDS single link output A table pointer
- * offset + 105: flat panel timings table pointer
- * offset + 107: flat panel strapping translation table pointer
- * offset + 117: LVDS manufacturer panel config table pointer
- * offset + 119: LVDS manufacturer strapping translation table pointer
- *
- * offset + 142: PLL limits table pointer
- *
- * offset + 156: minimum pixel clock for LVDS dual link
- */
-
- uint8_t *bmp = &bios->data[offset], bmp_version_major, bmp_version_minor;
- uint16_t bmplength;
- uint16_t legacy_scripts_offset, legacy_i2c_offset;
-
- /* load needed defaults in case we can't parse this info */
- bios->dcb.i2c[0].write = NV_CIO_CRE_DDC_WR__INDEX;
- bios->dcb.i2c[0].read = NV_CIO_CRE_DDC_STATUS__INDEX;
- bios->dcb.i2c[1].write = NV_CIO_CRE_DDC0_WR__INDEX;
- bios->dcb.i2c[1].read = NV_CIO_CRE_DDC0_STATUS__INDEX;
- bios->digital_min_front_porch = 0x4b;
- bios->fmaxvco = 256000;
- bios->fminvco = 128000;
- bios->fp.duallink_transition_clk = 90000;
-
- bmp_version_major = bmp[5];
- bmp_version_minor = bmp[6];
-
- NV_TRACE(dev, "BMP version %d.%d\n",
- bmp_version_major, bmp_version_minor);
-
- /*
- * Make sure that 0x36 is blank and can't be mistaken for a DCB
- * pointer on early versions
- */
- if (bmp_version_major < 5)
- *(uint16_t *)&bios->data[0x36] = 0;
-
- /*
- * Seems that the minor version was 1 for all major versions prior
- * to 5. Version 6 could theoretically exist, but I suspect BIT
- * happened instead.
- */
- if ((bmp_version_major < 5 && bmp_version_minor != 1) || bmp_version_major > 5) {
- NV_ERROR(dev, "You have an unsupported BMP version. "
- "Please send in your bios\n");
- return -ENOSYS;
- }
-
- if (bmp_version_major == 0)
- /* nothing that's currently useful in this version */
- return 0;
- else if (bmp_version_major == 1)
- bmplength = 44; /* exact for 1.01 */
- else if (bmp_version_major == 2)
- bmplength = 48; /* exact for 2.01 */
- else if (bmp_version_major == 3)
- bmplength = 54;
- /* guessed - mem init tables added in this version */
- else if (bmp_version_major == 4 || bmp_version_minor < 0x1)
- /* don't know if 5.0 exists... */
- bmplength = 62;
- /* guessed - BMP I2C indices added in version 4*/
- else if (bmp_version_minor < 0x6)
- bmplength = 67; /* exact for 5.01 */
- else if (bmp_version_minor < 0x10)
- bmplength = 75; /* exact for 5.06 */
- else if (bmp_version_minor == 0x10)
- bmplength = 89; /* exact for 5.10h */
- else if (bmp_version_minor < 0x14)
- bmplength = 118; /* exact for 5.11h */
- else if (bmp_version_minor < 0x24)
- /*
- * Not sure of version where pll limits came in;
- * certainly exist by 0x24 though.
- */
- /* length not exact: this is long enough to get lvds members */
- bmplength = 123;
- else if (bmp_version_minor < 0x27)
- /*
- * Length not exact: this is long enough to get pll limit
- * member
- */
- bmplength = 144;
- else
- /*
- * Length not exact: this is long enough to get dual link
- * transition clock.
- */
- bmplength = 158;
-
- /* checksum */
- if (nv_cksum(bmp, 8)) {
- NV_ERROR(dev, "Bad BMP checksum\n");
- return -EINVAL;
- }
-
- /*
- * Bit 4 seems to indicate either a mobile bios or a quadro card --
- * mobile behaviour consistent (nv11+), quadro only seen nv18gl-nv36gl
- * (not nv10gl), bit 5 that the flat panel tables are present, and
- * bit 6 a tv bios.
- */
- bios->feature_byte = bmp[9];
-
- parse_bios_version(dev, bios, offset + 10);
-
- if (bmp_version_major < 5 || bmp_version_minor < 0x10)
- bios->old_style_init = true;
- legacy_scripts_offset = 18;
- if (bmp_version_major < 2)
- legacy_scripts_offset -= 4;
- bios->init_script_tbls_ptr = ROM16(bmp[legacy_scripts_offset]);
- bios->extra_init_script_tbl_ptr = ROM16(bmp[legacy_scripts_offset + 2]);
-
- if (bmp_version_major > 2) { /* appears in BMP 3 */
- bios->legacy.mem_init_tbl_ptr = ROM16(bmp[24]);
- bios->legacy.sdr_seq_tbl_ptr = ROM16(bmp[26]);
- bios->legacy.ddr_seq_tbl_ptr = ROM16(bmp[28]);
- }
-
- legacy_i2c_offset = 0x48; /* BMP version 2 & 3 */
- if (bmplength > 61)
- legacy_i2c_offset = offset + 54;
- bios->legacy.i2c_indices.crt = bios->data[legacy_i2c_offset];
- bios->legacy.i2c_indices.tv = bios->data[legacy_i2c_offset + 1];
- bios->legacy.i2c_indices.panel = bios->data[legacy_i2c_offset + 2];
- if (bios->data[legacy_i2c_offset + 4])
- bios->dcb.i2c[0].write = bios->data[legacy_i2c_offset + 4];
- if (bios->data[legacy_i2c_offset + 5])
- bios->dcb.i2c[0].read = bios->data[legacy_i2c_offset + 5];
- if (bios->data[legacy_i2c_offset + 6])
- bios->dcb.i2c[1].write = bios->data[legacy_i2c_offset + 6];
- if (bios->data[legacy_i2c_offset + 7])
- bios->dcb.i2c[1].read = bios->data[legacy_i2c_offset + 7];
-
- if (bmplength > 74) {
- bios->fmaxvco = ROM32(bmp[67]);
- bios->fminvco = ROM32(bmp[71]);
- }
- if (bmplength > 88)
- parse_script_table_pointers(bios, offset + 75);
- if (bmplength > 94) {
- bios->tmds.output0_script_ptr = ROM16(bmp[89]);
- bios->tmds.output1_script_ptr = ROM16(bmp[91]);
- /*
- * Never observed in use with lvds scripts, but is reused for
- * 18/24 bit panel interface default for EDID equipped panels
- * (if_is_24bit not set directly to avoid any oscillation).
- */
- bios->legacy.lvds_single_a_script_ptr = ROM16(bmp[95]);
- }
- if (bmplength > 108) {
- bios->fp.fptablepointer = ROM16(bmp[105]);
- bios->fp.fpxlatetableptr = ROM16(bmp[107]);
- bios->fp.xlatwidth = 1;
- }
- if (bmplength > 120) {
- bios->fp.lvdsmanufacturerpointer = ROM16(bmp[117]);
- bios->fp.fpxlatemanufacturertableptr = ROM16(bmp[119]);
- }
- if (bmplength > 143)
- bios->pll_limit_tbl_ptr = ROM16(bmp[142]);
-
- if (bmplength > 157)
- bios->fp.duallink_transition_clk = ROM16(bmp[156]) * 10;
-
- return 0;
-}
-
-static uint16_t findstr(uint8_t *data, int n, const uint8_t *str, int len)
-{
- int i, j;
-
- for (i = 0; i <= (n - len); i++) {
- for (j = 0; j < len; j++)
- if (data[i + j] != str[j])
- break;
- if (j == len)
- return i;
- }
-
- return 0;
-}
-
-static struct dcb_gpio_entry *
-new_gpio_entry(struct nvbios *bios)
-{
- struct dcb_gpio_table *gpio = &bios->dcb.gpio;
-
- return &gpio->entry[gpio->entries++];
-}
-
-struct dcb_gpio_entry *
-nouveau_bios_gpio_entry(struct drm_device *dev, enum dcb_gpio_tag tag)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- int i;
-
- for (i = 0; i < bios->dcb.gpio.entries; i++) {
- if (bios->dcb.gpio.entry[i].tag != tag)
- continue;
-
- return &bios->dcb.gpio.entry[i];
- }
-
- return NULL;
-}
-
-static void
-parse_dcb30_gpio_entry(struct nvbios *bios, uint16_t offset)
-{
- struct dcb_gpio_entry *gpio;
- uint16_t ent = ROM16(bios->data[offset]);
- uint8_t line = ent & 0x1f,
- tag = ent >> 5 & 0x3f,
- flags = ent >> 11 & 0x1f;
-
- if (tag == 0x3f)
- return;
-
- gpio = new_gpio_entry(bios);
-
- gpio->tag = tag;
- gpio->line = line;
- gpio->invert = flags != 4;
- gpio->entry = ent;
-}
-
-static void
-parse_dcb40_gpio_entry(struct nvbios *bios, uint16_t offset)
-{
- uint32_t entry = ROM32(bios->data[offset]);
- struct dcb_gpio_entry *gpio;
-
- if ((entry & 0x0000ff00) == 0x0000ff00)
- return;
-
- gpio = new_gpio_entry(bios);
- gpio->tag = (entry & 0x0000ff00) >> 8;
- gpio->line = (entry & 0x0000001f) >> 0;
- gpio->state_default = (entry & 0x01000000) >> 24;
- gpio->state[0] = (entry & 0x18000000) >> 27;
- gpio->state[1] = (entry & 0x60000000) >> 29;
- gpio->entry = entry;
-}
-
-static void
-parse_dcb_gpio_table(struct nvbios *bios)
-{
- struct drm_device *dev = bios->dev;
- uint16_t gpio_table_ptr = bios->dcb.gpio_table_ptr;
- uint8_t *gpio_table = &bios->data[gpio_table_ptr];
- int header_len = gpio_table[1],
- entries = gpio_table[2],
- entry_len = gpio_table[3];
- void (*parse_entry)(struct nvbios *, uint16_t) = NULL;
- int i;
-
- if (bios->dcb.version >= 0x40) {
- if (gpio_table_ptr && entry_len != 4) {
- NV_WARN(dev, "Invalid DCB GPIO table entry length.\n");
- return;
- }
-
- parse_entry = parse_dcb40_gpio_entry;
-
- } else if (bios->dcb.version >= 0x30) {
- if (gpio_table_ptr && entry_len != 2) {
- NV_WARN(dev, "Invalid DCB GPIO table entry length.\n");
- return;
- }
-
- parse_entry = parse_dcb30_gpio_entry;
-
- } else if (bios->dcb.version >= 0x22) {
- /*
- * DCBs older than v3.0 don't really have a GPIO
- * table, instead they keep some GPIO info at fixed
- * locations.
- */
- uint16_t dcbptr = ROM16(bios->data[0x36]);
- uint8_t *tvdac_gpio = &bios->data[dcbptr - 5];
-
- if (tvdac_gpio[0] & 1) {
- struct dcb_gpio_entry *gpio = new_gpio_entry(bios);
-
- gpio->tag = DCB_GPIO_TVDAC0;
- gpio->line = tvdac_gpio[1] >> 4;
- gpio->invert = tvdac_gpio[0] & 2;
- }
- } else {
- /*
- * No systematic way to store GPIO info on pre-v2.2
- * DCBs, try to match the PCI device IDs.
- */
-
- /* Apple iMac G4 NV18 */
- if (nv_match_device(dev, 0x0189, 0x10de, 0x0010)) {
- struct dcb_gpio_entry *gpio = new_gpio_entry(bios);
-
- gpio->tag = DCB_GPIO_TVDAC0;
- gpio->line = 4;
- }
-
- }
-
- if (!gpio_table_ptr)
- return;
-
- if (entries > DCB_MAX_NUM_GPIO_ENTRIES) {
- NV_WARN(dev, "Too many entries in the DCB GPIO table.\n");
- entries = DCB_MAX_NUM_GPIO_ENTRIES;
- }
-
- for (i = 0; i < entries; i++)
- parse_entry(bios, gpio_table_ptr + header_len + entry_len * i);
-}
-
-struct dcb_connector_table_entry *
-nouveau_bios_connector_entry(struct drm_device *dev, int index)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- struct dcb_connector_table_entry *cte;
-
- if (index >= bios->dcb.connector.entries)
- return NULL;
-
- cte = &bios->dcb.connector.entry[index];
- if (cte->type == 0xff)
- return NULL;
-
- return cte;
-}
-
-static enum dcb_connector_type
-divine_connector_type(struct nvbios *bios, int index)
-{
- struct dcb_table *dcb = &bios->dcb;
- unsigned encoders = 0, type = DCB_CONNECTOR_NONE;
- int i;
-
- for (i = 0; i < dcb->entries; i++) {
- if (dcb->entry[i].connector == index)
- encoders |= (1 << dcb->entry[i].type);
- }
-
- if (encoders & (1 << OUTPUT_DP)) {
- if (encoders & (1 << OUTPUT_TMDS))
- type = DCB_CONNECTOR_DP;
- else
- type = DCB_CONNECTOR_eDP;
- } else
- if (encoders & (1 << OUTPUT_TMDS)) {
- if (encoders & (1 << OUTPUT_ANALOG))
- type = DCB_CONNECTOR_DVI_I;
- else
- type = DCB_CONNECTOR_DVI_D;
- } else
- if (encoders & (1 << OUTPUT_ANALOG)) {
- type = DCB_CONNECTOR_VGA;
- } else
- if (encoders & (1 << OUTPUT_LVDS)) {
- type = DCB_CONNECTOR_LVDS;
- } else
- if (encoders & (1 << OUTPUT_TV)) {
- type = DCB_CONNECTOR_TV_0;
- }
-
- return type;
-}
-
-static void
-apply_dcb_connector_quirks(struct nvbios *bios, int idx)
-{
- struct dcb_connector_table_entry *cte = &bios->dcb.connector.entry[idx];
- struct drm_device *dev = bios->dev;
-
- /* Gigabyte NX85T */
- if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
- if (cte->type == DCB_CONNECTOR_HDMI_1)
- cte->type = DCB_CONNECTOR_DVI_I;
- }
-}
-
-static void
-parse_dcb_connector_table(struct nvbios *bios)
-{
- struct drm_device *dev = bios->dev;
- struct dcb_connector_table *ct = &bios->dcb.connector;
- struct dcb_connector_table_entry *cte;
- uint8_t *conntab = &bios->data[bios->dcb.connector_table_ptr];
- uint8_t *entry;
- int i;
-
- if (!bios->dcb.connector_table_ptr) {
- NV_DEBUG_KMS(dev, "No DCB connector table present\n");
- return;
- }
-
- NV_INFO(dev, "DCB connector table: VHER 0x%02x %d %d %d\n",
- conntab[0], conntab[1], conntab[2], conntab[3]);
- if ((conntab[0] != 0x30 && conntab[0] != 0x40) ||
- (conntab[3] != 2 && conntab[3] != 4)) {
- NV_ERROR(dev, " Unknown! Please report.\n");
- return;
- }
-
- ct->entries = conntab[2];
-
- entry = conntab + conntab[1];
- cte = &ct->entry[0];
- for (i = 0; i < conntab[2]; i++, entry += conntab[3], cte++) {
- cte->index = i;
- if (conntab[3] == 2)
- cte->entry = ROM16(entry[0]);
- else
- cte->entry = ROM32(entry[0]);
-
- cte->type = (cte->entry & 0x000000ff) >> 0;
- cte->index2 = (cte->entry & 0x00000f00) >> 8;
- switch (cte->entry & 0x00033000) {
- case 0x00001000:
- cte->gpio_tag = 0x07;
- break;
- case 0x00002000:
- cte->gpio_tag = 0x08;
- break;
- case 0x00010000:
- cte->gpio_tag = 0x51;
- break;
- case 0x00020000:
- cte->gpio_tag = 0x52;
- break;
- default:
- cte->gpio_tag = 0xff;
- break;
- }
-
- if (cte->type == 0xff)
- continue;
-
- apply_dcb_connector_quirks(bios, i);
-
- NV_INFO(dev, " %d: 0x%08x: type 0x%02x idx %d tag 0x%02x\n",
- i, cte->entry, cte->type, cte->index, cte->gpio_tag);
-
- /* check for known types, fallback to guessing the type
- * from attached encoders if we hit an unknown.
- */
- switch (cte->type) {
- case DCB_CONNECTOR_VGA:
- case DCB_CONNECTOR_TV_0:
- case DCB_CONNECTOR_TV_1:
- case DCB_CONNECTOR_TV_3:
- case DCB_CONNECTOR_DVI_I:
- case DCB_CONNECTOR_DVI_D:
- case DCB_CONNECTOR_LVDS:
- case DCB_CONNECTOR_DP:
- case DCB_CONNECTOR_eDP:
- case DCB_CONNECTOR_HDMI_0:
- case DCB_CONNECTOR_HDMI_1:
- break;
- default:
- cte->type = divine_connector_type(bios, cte->index);
- NV_WARN(dev, "unknown type, using 0x%02x\n", cte->type);
- break;
- }
-
- if (nouveau_override_conntype) {
- int type = divine_connector_type(bios, cte->index);
- if (type != cte->type)
- NV_WARN(dev, " -> type 0x%02x\n", cte->type);
- }
-
- }
-}
-
-static struct dcb_entry *new_dcb_entry(struct dcb_table *dcb)
-{
- struct dcb_entry *entry = &dcb->entry[dcb->entries];
-
- memset(entry, 0, sizeof(struct dcb_entry));
- entry->index = dcb->entries++;
-
- return entry;
-}
-
-static void fabricate_vga_output(struct dcb_table *dcb, int i2c, int heads)
-{
- struct dcb_entry *entry = new_dcb_entry(dcb);
-
- entry->type = 0;
- entry->i2c_index = i2c;
- entry->heads = heads;
- entry->location = DCB_LOC_ON_CHIP;
- entry->or = 1;
-}
-
-static void fabricate_dvi_i_output(struct dcb_table *dcb, bool twoHeads)
-{
- struct dcb_entry *entry = new_dcb_entry(dcb);
-
- entry->type = 2;
- entry->i2c_index = LEGACY_I2C_PANEL;
- entry->heads = twoHeads ? 3 : 1;
- entry->location = !DCB_LOC_ON_CHIP; /* ie OFF CHIP */
- entry->or = 1; /* means |0x10 gets set on CRE_LCD__INDEX */
- entry->duallink_possible = false; /* SiI164 and co. are single link */
-
-#if 0
- /*
- * For dvi-a either crtc probably works, but my card appears to only
- * support dvi-d. "nvidia" still attempts to program it for dvi-a,
- * doing the full fp output setup (program 0x6808.. fp dimension regs,
- * setting 0x680848 to 0x10000111 to enable, maybe setting 0x680880);
- * the monitor picks up the mode res ok and lights up, but no pixel
- * data appears, so the board manufacturer probably connected up the
- * sync lines, but missed the video traces / components
- *
- * with this introduction, dvi-a left as an exercise for the reader.
- */
- fabricate_vga_output(dcb, LEGACY_I2C_PANEL, entry->heads);
-#endif
-}
-
-static void fabricate_tv_output(struct dcb_table *dcb, bool twoHeads)
-{
- struct dcb_entry *entry = new_dcb_entry(dcb);
-
- entry->type = 1;
- entry->i2c_index = LEGACY_I2C_TV;
- entry->heads = twoHeads ? 3 : 1;
- entry->location = !DCB_LOC_ON_CHIP; /* ie OFF CHIP */
-}
-
-static bool
-parse_dcb20_entry(struct drm_device *dev, struct dcb_table *dcb,
- uint32_t conn, uint32_t conf, struct dcb_entry *entry)
-{
- entry->type = conn & 0xf;
- entry->i2c_index = (conn >> 4) & 0xf;
- entry->heads = (conn >> 8) & 0xf;
- if (dcb->version >= 0x40)
- entry->connector = (conn >> 12) & 0xf;
- entry->bus = (conn >> 16) & 0xf;
- entry->location = (conn >> 20) & 0x3;
- entry->or = (conn >> 24) & 0xf;
-
- switch (entry->type) {
- case OUTPUT_ANALOG:
- /*
- * Although the rest of a CRT conf dword is usually
- * zeros, mac biosen have stuff there so we must mask
- */
- entry->crtconf.maxfreq = (dcb->version < 0x30) ?
- (conf & 0xffff) * 10 :
- (conf & 0xff) * 10000;
- break;
- case OUTPUT_LVDS:
- {
- uint32_t mask;
- if (conf & 0x1)
- entry->lvdsconf.use_straps_for_mode = true;
- if (dcb->version < 0x22) {
- mask = ~0xd;
- /*
- * The laptop in bug 14567 lies and claims to not use
- * straps when it does, so assume all DCB 2.0 laptops
- * use straps, until a broken EDID using one is produced
- */
- entry->lvdsconf.use_straps_for_mode = true;
- /*
- * Both 0x4 and 0x8 show up in v2.0 tables; assume they
- * mean the same thing (probably wrong, but might work)
- */
- if (conf & 0x4 || conf & 0x8)
- entry->lvdsconf.use_power_scripts = true;
- } else {
- mask = ~0x7;
- if (conf & 0x2)
- entry->lvdsconf.use_acpi_for_edid = true;
- if (conf & 0x4)
- entry->lvdsconf.use_power_scripts = true;
- entry->lvdsconf.sor.link = (conf & 0x00000030) >> 4;
- }
- if (conf & mask) {
- /*
- * Until we even try to use these on G8x, it's
- * useless reporting unknown bits. They all are.
- */
- if (dcb->version >= 0x40)
- break;
-
- NV_ERROR(dev, "Unknown LVDS configuration bits, "
- "please report\n");
- }
- break;
- }
- case OUTPUT_TV:
- {
- if (dcb->version >= 0x30)
- entry->tvconf.has_component_output = conf & (0x8 << 4);
- else
- entry->tvconf.has_component_output = false;
-
- break;
- }
- case OUTPUT_DP:
- entry->dpconf.sor.link = (conf & 0x00000030) >> 4;
- entry->dpconf.link_bw = (conf & 0x00e00000) >> 21;
- switch ((conf & 0x0f000000) >> 24) {
- case 0xf:
- entry->dpconf.link_nr = 4;
- break;
- case 0x3:
- entry->dpconf.link_nr = 2;
- break;
- default:
- entry->dpconf.link_nr = 1;
- break;
- }
- break;
- case OUTPUT_TMDS:
- if (dcb->version >= 0x40)
- entry->tmdsconf.sor.link = (conf & 0x00000030) >> 4;
- else if (dcb->version >= 0x30)
- entry->tmdsconf.slave_addr = (conf & 0x00000700) >> 8;
- else if (dcb->version >= 0x22)
- entry->tmdsconf.slave_addr = (conf & 0x00000070) >> 4;
-
- break;
- case OUTPUT_EOL:
- /* weird g80 mobile type that "nv" treats as a terminator */
- dcb->entries--;
- return false;
- default:
- break;
- }
-
- if (dcb->version < 0x40) {
- /* Normal entries consist of a single bit, but dual link has
- * the next most significant bit set too
- */
- entry->duallink_possible =
- ((1 << (ffs(entry->or) - 1)) * 3 == entry->or);
- } else {
- entry->duallink_possible = (entry->sorconf.link == 3);
- }
-
- /* unsure what DCB version introduces this, 3.0? */
- if (conf & 0x100000)
- entry->i2c_upper_default = true;
-
- return true;
-}
-
-static bool
-parse_dcb15_entry(struct drm_device *dev, struct dcb_table *dcb,
- uint32_t conn, uint32_t conf, struct dcb_entry *entry)
-{
- switch (conn & 0x0000000f) {
- case 0:
- entry->type = OUTPUT_ANALOG;
- break;
- case 1:
- entry->type = OUTPUT_TV;
- break;
- case 2:
- case 4:
- if (conn & 0x10)
- entry->type = OUTPUT_LVDS;
- else
- entry->type = OUTPUT_TMDS;
- break;
- case 3:
- entry->type = OUTPUT_LVDS;
- break;
- default:
- NV_ERROR(dev, "Unknown DCB type %d\n", conn & 0x0000000f);
- return false;
- }
-
- entry->i2c_index = (conn & 0x0003c000) >> 14;
- entry->heads = ((conn & 0x001c0000) >> 18) + 1;
- entry->or = entry->heads; /* same as heads, hopefully safe enough */
- entry->location = (conn & 0x01e00000) >> 21;
- entry->bus = (conn & 0x0e000000) >> 25;
- entry->duallink_possible = false;
-
- switch (entry->type) {
- case OUTPUT_ANALOG:
- entry->crtconf.maxfreq = (conf & 0xffff) * 10;
- break;
- case OUTPUT_TV:
- entry->tvconf.has_component_output = false;
- break;
- case OUTPUT_LVDS:
- if ((conn & 0x00003f00) != 0x10)
- entry->lvdsconf.use_straps_for_mode = true;
- entry->lvdsconf.use_power_scripts = true;
- break;
- default:
- break;
- }
-
- return true;
-}
-
-static bool parse_dcb_entry(struct drm_device *dev, struct dcb_table *dcb,
- uint32_t conn, uint32_t conf)
-{
- struct dcb_entry *entry = new_dcb_entry(dcb);
- bool ret;
-
- if (dcb->version >= 0x20)
- ret = parse_dcb20_entry(dev, dcb, conn, conf, entry);
- else
- ret = parse_dcb15_entry(dev, dcb, conn, conf, entry);
- if (!ret)
- return ret;
-
- read_dcb_i2c_entry(dev, dcb->version, dcb->i2c_table,
- entry->i2c_index, &dcb->i2c[entry->i2c_index]);
-
- return true;
-}
-
-static
-void merge_like_dcb_entries(struct drm_device *dev, struct dcb_table *dcb)
-{
- /*
- * DCB v2.0 lists each output combination separately.
- * Here we merge compatible entries to have fewer outputs, with
- * more options
- */
-
- int i, newentries = 0;
-
- for (i = 0; i < dcb->entries; i++) {
- struct dcb_entry *ient = &dcb->entry[i];
- int j;
-
- for (j = i + 1; j < dcb->entries; j++) {
- struct dcb_entry *jent = &dcb->entry[j];
-
- if (jent->type == 100) /* already merged entry */
- continue;
-
- /* merge heads field when all other fields the same */
- if (jent->i2c_index == ient->i2c_index &&
- jent->type == ient->type &&
- jent->location == ient->location &&
- jent->or == ient->or) {
- NV_TRACE(dev, "Merging DCB entries %d and %d\n",
- i, j);
- ient->heads |= jent->heads;
- jent->type = 100; /* dummy value */
- }
- }
- }
-
- /* Compact entries merged into others out of dcb */
- for (i = 0; i < dcb->entries; i++) {
- if (dcb->entry[i].type == 100)
- continue;
-
- if (newentries != i) {
- dcb->entry[newentries] = dcb->entry[i];
- dcb->entry[newentries].index = newentries;
- }
- newentries++;
- }
-
- dcb->entries = newentries;
-}
-
-static bool
-apply_dcb_encoder_quirks(struct drm_device *dev, int idx, u32 *conn, u32 *conf)
-{
- /* Dell Precision M6300
- * DCB entry 2: 02025312 00000010
- * DCB entry 3: 02026312 00000020
- *
- * Identical, except apparently a different connector on a
- * different SOR link. Not a clue how we're supposed to know
- * which one is in use if it even shares an i2c line...
- *
- * Ignore the connector on the second SOR link to prevent
- * nasty problems until this is sorted (assuming it's not a
- * VBIOS bug).
- */
- if (nv_match_device(dev, 0x040d, 0x1028, 0x019b)) {
- if (*conn == 0x02026312 && *conf == 0x00000020)
- return false;
- }
-
- return true;
-}
-
-static int
-parse_dcb_table(struct drm_device *dev, struct nvbios *bios, bool twoHeads)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct dcb_table *dcb = &bios->dcb;
- uint16_t dcbptr = 0, i2ctabptr = 0;
- uint8_t *dcbtable;
- uint8_t headerlen = 0x4, entries = DCB_MAX_NUM_ENTRIES;
- bool configblock = true;
- int recordlength = 8, confofs = 4;
- int i;
-
- /* get the offset from 0x36 */
- if (dev_priv->card_type > NV_04) {
- dcbptr = ROM16(bios->data[0x36]);
- if (dcbptr == 0x0000)
- NV_WARN(dev, "No output data (DCB) found in BIOS\n");
- }
-
- /* this situation likely means a really old card, pre DCB */
- if (dcbptr == 0x0) {
- NV_INFO(dev, "Assuming a CRT output exists\n");
- fabricate_vga_output(dcb, LEGACY_I2C_CRT, 1);
-
- if (nv04_tv_identify(dev, bios->legacy.i2c_indices.tv) >= 0)
- fabricate_tv_output(dcb, twoHeads);
-
- return 0;
- }
-
- dcbtable = &bios->data[dcbptr];
-
- /* get DCB version */
- dcb->version = dcbtable[0];
- NV_TRACE(dev, "Found Display Configuration Block version %d.%d\n",
- dcb->version >> 4, dcb->version & 0xf);
-
- if (dcb->version >= 0x20) { /* NV17+ */
- uint32_t sig;
-
- if (dcb->version >= 0x30) { /* NV40+ */
- headerlen = dcbtable[1];
- entries = dcbtable[2];
- recordlength = dcbtable[3];
- i2ctabptr = ROM16(dcbtable[4]);
- sig = ROM32(dcbtable[6]);
- dcb->gpio_table_ptr = ROM16(dcbtable[10]);
- dcb->connector_table_ptr = ROM16(dcbtable[20]);
- } else {
- i2ctabptr = ROM16(dcbtable[2]);
- sig = ROM32(dcbtable[4]);
- headerlen = 8;
- }
-
- if (sig != 0x4edcbdcb) {
- NV_ERROR(dev, "Bad Display Configuration Block "
- "signature (%08X)\n", sig);
- return -EINVAL;
- }
- } else if (dcb->version >= 0x15) { /* some NV11 and NV20 */
- char sig[8] = { 0 };
-
- strncpy(sig, (char *)&dcbtable[-7], 7);
- i2ctabptr = ROM16(dcbtable[2]);
- recordlength = 10;
- confofs = 6;
-
- if (strcmp(sig, "DEV_REC")) {
- NV_ERROR(dev, "Bad Display Configuration Block "
- "signature (%s)\n", sig);
- return -EINVAL;
- }
- } else {
- /*
- * v1.4 (some NV15/16, NV11+) seems the same as v1.5, but always
- * has the same single (crt) entry, even when tv-out present, so
- * the conclusion is this version cannot really be used.
- * v1.2 tables (some NV6/10, and NV15+) normally have the same
- * 5 entries, which are not specific to the card and so no use.
- * v1.2 does have an I2C table that read_dcb_i2c_table can
- * handle, but cards exist (nv11 in #14821) with a bad i2c table
- * pointer, so use the indices parsed in parse_bmp_structure.
- * v1.1 (NV5+, maybe some NV4) is entirely unhelpful
- */
- NV_TRACEWARN(dev, "No useful information in BIOS output table; "
- "adding all possible outputs\n");
- fabricate_vga_output(dcb, LEGACY_I2C_CRT, 1);
-
- /*
- * Attempt to detect TV before DVI because the test
- * for the former is more accurate and it rules the
- * latter out.
- */
- if (nv04_tv_identify(dev,
- bios->legacy.i2c_indices.tv) >= 0)
- fabricate_tv_output(dcb, twoHeads);
-
- else if (bios->tmds.output0_script_ptr ||
- bios->tmds.output1_script_ptr)
- fabricate_dvi_i_output(dcb, twoHeads);
-
- return 0;
- }
-
- if (!i2ctabptr)
- NV_WARN(dev, "No pointer to DCB I2C port table\n");
- else {
- dcb->i2c_table = &bios->data[i2ctabptr];
- if (dcb->version >= 0x30)
- dcb->i2c_default_indices = dcb->i2c_table[4];
-
- /*
- * Parse the "management" I2C bus, used for hardware
- * monitoring and some external TMDS transmitters.
- */
- if (dcb->version >= 0x22) {
- int idx = (dcb->version >= 0x40 ?
- dcb->i2c_default_indices & 0xf :
- 2);
-
- read_dcb_i2c_entry(dev, dcb->version, dcb->i2c_table,
- idx, &dcb->i2c[idx]);
- }
- }
-
- if (entries > DCB_MAX_NUM_ENTRIES)
- entries = DCB_MAX_NUM_ENTRIES;
-
- for (i = 0; i < entries; i++) {
- uint32_t connection, config = 0;
-
- connection = ROM32(dcbtable[headerlen + recordlength * i]);
- if (configblock)
- config = ROM32(dcbtable[headerlen + confofs + recordlength * i]);
-
- /* seen on an NV11 with DCB v1.5 */
- if (connection == 0x00000000)
- break;
-
- /* seen on an NV17 with DCB v2.0 */
- if (connection == 0xffffffff)
- break;
-
- if ((connection & 0x0000000f) == 0x0000000f)
- continue;
-
- if (!apply_dcb_encoder_quirks(dev, i, &connection, &config))
- continue;
-
- NV_TRACEWARN(dev, "Raw DCB entry %d: %08x %08x\n",
- dcb->entries, connection, config);
-
- if (!parse_dcb_entry(dev, dcb, connection, config))
- break;
- }
-
- /*
- * apart for v2.1+ not being known for requiring merging, this
- * guarantees dcbent->index is the index of the entry in the rom image
- */
- if (dcb->version < 0x21)
- merge_like_dcb_entries(dev, dcb);
-
- if (!dcb->entries)
- return -ENXIO;
-
- parse_dcb_gpio_table(bios);
- parse_dcb_connector_table(bios);
- return 0;
-}
-
-static void
-fixup_legacy_connector(struct nvbios *bios)
-{
- struct dcb_table *dcb = &bios->dcb;
- int i, i2c, i2c_conn[DCB_MAX_NUM_I2C_ENTRIES] = { };
-
- /*
- * DCB 3.0 also has the table in most cases, but there are some cards
- * where the table is filled with stub entries, and the DCB entriy
- * indices are all 0. We don't need the connector indices on pre-G80
- * chips (yet?) so limit the use to DCB 4.0 and above.
- */
- if (dcb->version >= 0x40)
- return;
-
- dcb->connector.entries = 0;
-
- /*
- * No known connector info before v3.0, so make it up. the rule here
- * is: anything on the same i2c bus is considered to be on the same
- * connector. any output without an associated i2c bus is assigned
- * its own unique connector index.
- */
- for (i = 0; i < dcb->entries; i++) {
- /*
- * Ignore the I2C index for on-chip TV-out, as there
- * are cards with bogus values (nv31m in bug 23212),
- * and it's otherwise useless.
- */
- if (dcb->entry[i].type == OUTPUT_TV &&
- dcb->entry[i].location == DCB_LOC_ON_CHIP)
- dcb->entry[i].i2c_index = 0xf;
- i2c = dcb->entry[i].i2c_index;
-
- if (i2c_conn[i2c]) {
- dcb->entry[i].connector = i2c_conn[i2c] - 1;
- continue;
- }
-
- dcb->entry[i].connector = dcb->connector.entries++;
- if (i2c != 0xf)
- i2c_conn[i2c] = dcb->connector.entries;
- }
-
- /* Fake the connector table as well as just connector indices */
- for (i = 0; i < dcb->connector.entries; i++) {
- dcb->connector.entry[i].index = i;
- dcb->connector.entry[i].type = divine_connector_type(bios, i);
- dcb->connector.entry[i].gpio_tag = 0xff;
- }
-}
-
-static void
-fixup_legacy_i2c(struct nvbios *bios)
-{
- struct dcb_table *dcb = &bios->dcb;
- int i;
-
- for (i = 0; i < dcb->entries; i++) {
- if (dcb->entry[i].i2c_index == LEGACY_I2C_CRT)
- dcb->entry[i].i2c_index = bios->legacy.i2c_indices.crt;
- if (dcb->entry[i].i2c_index == LEGACY_I2C_PANEL)
- dcb->entry[i].i2c_index = bios->legacy.i2c_indices.panel;
- if (dcb->entry[i].i2c_index == LEGACY_I2C_TV)
- dcb->entry[i].i2c_index = bios->legacy.i2c_indices.tv;
- }
-}
-
-static int load_nv17_hwsq_ucode_entry(struct drm_device *dev, struct nvbios *bios, uint16_t hwsq_offset, int entry)
-{
- /*
- * The header following the "HWSQ" signature has the number of entries,
- * and the entry size
- *
- * An entry consists of a dword to write to the sequencer control reg
- * (0x00001304), followed by the ucode bytes, written sequentially,
- * starting at reg 0x00001400
- */
-
- uint8_t bytes_to_write;
- uint16_t hwsq_entry_offset;
- int i;
-
- if (bios->data[hwsq_offset] <= entry) {
- NV_ERROR(dev, "Too few entries in HW sequencer table for "
- "requested entry\n");
- return -ENOENT;
- }
-
- bytes_to_write = bios->data[hwsq_offset + 1];
-
- if (bytes_to_write != 36) {
- NV_ERROR(dev, "Unknown HW sequencer entry size\n");
- return -EINVAL;
- }
-
- NV_TRACE(dev, "Loading NV17 power sequencing microcode\n");
-
- hwsq_entry_offset = hwsq_offset + 2 + entry * bytes_to_write;
-
- /* set sequencer control */
- bios_wr32(bios, 0x00001304, ROM32(bios->data[hwsq_entry_offset]));
- bytes_to_write -= 4;
-
- /* write ucode */
- for (i = 0; i < bytes_to_write; i += 4)
- bios_wr32(bios, 0x00001400 + i, ROM32(bios->data[hwsq_entry_offset + i + 4]));
-
- /* twiddle NV_PBUS_DEBUG_4 */
- bios_wr32(bios, NV_PBUS_DEBUG_4, bios_rd32(bios, NV_PBUS_DEBUG_4) | 0x18);
-
- return 0;
-}
-
-static int load_nv17_hw_sequencer_ucode(struct drm_device *dev,
- struct nvbios *bios)
-{
- /*
- * BMP based cards, from NV17, need a microcode loading to correctly
- * control the GPIO etc for LVDS panels
- *
- * BIT based cards seem to do this directly in the init scripts
- *
- * The microcode entries are found by the "HWSQ" signature.
- */
-
- const uint8_t hwsq_signature[] = { 'H', 'W', 'S', 'Q' };
- const int sz = sizeof(hwsq_signature);
- int hwsq_offset;
-
- hwsq_offset = findstr(bios->data, bios->length, hwsq_signature, sz);
- if (!hwsq_offset)
- return 0;
-
- /* always use entry 0? */
- return load_nv17_hwsq_ucode_entry(dev, bios, hwsq_offset + sz, 0);
-}
-
-uint8_t *nouveau_bios_embedded_edid(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- const uint8_t edid_sig[] = {
- 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00 };
- uint16_t offset = 0;
- uint16_t newoffset;
- int searchlen = NV_PROM_SIZE;
-
- if (bios->fp.edid)
- return bios->fp.edid;
-
- while (searchlen) {
- newoffset = findstr(&bios->data[offset], searchlen,
- edid_sig, 8);
- if (!newoffset)
- return NULL;
- offset += newoffset;
- if (!nv_cksum(&bios->data[offset], EDID1_LEN))
- break;
-
- searchlen -= offset;
- offset++;
- }
-
- NV_TRACE(dev, "Found EDID in BIOS\n");
-
- return bios->fp.edid = &bios->data[offset];
-}
-
-void
-nouveau_bios_run_init_table(struct drm_device *dev, uint16_t table,
- struct dcb_entry *dcbent)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- struct init_exec iexec = { true, false };
-
- mutex_lock(&bios->lock);
- bios->display.output = dcbent;
- parse_init_table(bios, table, &iexec);
- bios->display.output = NULL;
- mutex_unlock(&bios->lock);
-}
-
-static bool NVInitVBIOS(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
-
- memset(bios, 0, sizeof(struct nvbios));
- mutex_init(&bios->lock);
- bios->dev = dev;
-
- if (!NVShadowVBIOS(dev, bios->data))
- return false;
-
- bios->length = NV_PROM_SIZE;
- return true;
-}
-
-static int nouveau_parse_vbios_struct(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- const uint8_t bit_signature[] = { 0xff, 0xb8, 'B', 'I', 'T' };
- const uint8_t bmp_signature[] = { 0xff, 0x7f, 'N', 'V', 0x0 };
- int offset;
-
- offset = findstr(bios->data, bios->length,
- bit_signature, sizeof(bit_signature));
- if (offset) {
- NV_TRACE(dev, "BIT BIOS found\n");
- return parse_bit_structure(bios, offset + 6);
- }
-
- offset = findstr(bios->data, bios->length,
- bmp_signature, sizeof(bmp_signature));
- if (offset) {
- NV_TRACE(dev, "BMP BIOS found\n");
- return parse_bmp_structure(dev, bios, offset);
- }
-
- NV_ERROR(dev, "No known BIOS signature found\n");
- return -ENODEV;
-}
-
-int
-nouveau_run_vbios_init(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- int i, ret = 0;
-
- /* Reset the BIOS head to 0. */
- bios->state.crtchead = 0;
-
- if (bios->major_version < 5) /* BMP only */
- load_nv17_hw_sequencer_ucode(dev, bios);
-
- if (bios->execute) {
- bios->fp.last_script_invoc = 0;
- bios->fp.lvds_init_run = false;
- }
-
- parse_init_tables(bios);
-
- /*
- * Runs some additional script seen on G8x VBIOSen. The VBIOS'
- * parser will run this right after the init tables, the binary
- * driver appears to run it at some point later.
- */
- if (bios->some_script_ptr) {
- struct init_exec iexec = {true, false};
-
- NV_INFO(dev, "Parsing VBIOS init table at offset 0x%04X\n",
- bios->some_script_ptr);
- parse_init_table(bios, bios->some_script_ptr, &iexec);
- }
-
- if (dev_priv->card_type >= NV_50) {
- for (i = 0; i < bios->dcb.entries; i++) {
- nouveau_bios_run_display_table(dev,
- &bios->dcb.entry[i],
- 0, 0);
- }
- }
-
- return ret;
-}
-
-static void
-nouveau_bios_i2c_devices_takedown(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- struct dcb_i2c_entry *entry;
- int i;
-
- entry = &bios->dcb.i2c[0];
- for (i = 0; i < DCB_MAX_NUM_I2C_ENTRIES; i++, entry++)
- nouveau_i2c_fini(dev, entry);
-}
-
-static bool
-nouveau_bios_posted(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- unsigned htotal;
-
- if (dev_priv->chipset >= NV_50) {
- if (NVReadVgaCrtc(dev, 0, 0x00) == 0 &&
- NVReadVgaCrtc(dev, 0, 0x1a) == 0)
- return false;
- return true;
- }
-
- htotal = NVReadVgaCrtc(dev, 0, 0x06);
- htotal |= (NVReadVgaCrtc(dev, 0, 0x07) & 0x01) << 8;
- htotal |= (NVReadVgaCrtc(dev, 0, 0x07) & 0x20) << 4;
- htotal |= (NVReadVgaCrtc(dev, 0, 0x25) & 0x01) << 10;
- htotal |= (NVReadVgaCrtc(dev, 0, 0x41) & 0x01) << 11;
-
- return (htotal != 0);
-}
-
-int
-nouveau_bios_init(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- int ret;
-
- if (!NVInitVBIOS(dev))
- return -ENODEV;
-
- ret = nouveau_parse_vbios_struct(dev);
- if (ret)
- return ret;
-
- ret = parse_dcb_table(dev, bios, nv_two_heads(dev));
- if (ret)
- return ret;
-
- fixup_legacy_i2c(bios);
- fixup_legacy_connector(bios);
-
- if (!bios->major_version) /* we don't run version 0 bios */
- return 0;
-
- /* init script execution disabled */
- bios->execute = false;
-
- /* ... unless card isn't POSTed already */
- if (!nouveau_bios_posted(dev)) {
- NV_INFO(dev, "Adaptor not initialised, "
- "running VBIOS init tables.\n");
- bios->execute = true;
- }
-
- ret = nouveau_run_vbios_init(dev);
- if (ret)
- return ret;
-
- /* feature_byte on BMP is poor, but init always sets CR4B */
- if (bios->major_version < 5)
- bios->is_mobile = NVReadVgaCrtc(dev, 0, NV_CIO_CRE_4B) & 0x40;
-
- /* all BIT systems need p_f_m_t for digital_min_front_porch */
- if (bios->is_mobile || bios->major_version >= 5)
- ret = parse_fp_mode_table(dev, bios);
-
- /* allow subsequent scripts to execute */
- bios->execute = true;
-
- return 0;
-}
-
-void
-nouveau_bios_takedown(struct drm_device *dev)
-{
- nouveau_bios_i2c_devices_takedown(dev);
-}
Index: linux-2.6/drivers/gpu/drm/nouveau/nouveau_bios.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ linux-2.6/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -2167,11 +2167,11 @@ peek_fb(struct drm_device *dev, struct i
if (off < pci_resource_len(dev->pdev, 1)) {
uint8_t __iomem *p =
- io_mapping_map_atomic_wc(fb, off & PAGE_MASK, KM_USER0);
+ io_mapping_map_atomic_wc(fb, off & PAGE_MASK);
val = ioread32(p + (off & ~PAGE_MASK));
- io_mapping_unmap_atomic(p, KM_USER0);
+ io_mapping_unmap_atomic(p);
}
return val;
@@ -2183,12 +2183,12 @@ poke_fb(struct drm_device *dev, struct i
{
if (off < pci_resource_len(dev->pdev, 1)) {
uint8_t __iomem *p =
- io_mapping_map_atomic_wc(fb, off & PAGE_MASK, KM_USER0);
+ io_mapping_map_atomic_wc(fb, off & PAGE_MASK);
iowrite32(val, p + (off & ~PAGE_MASK));
wmb();
- io_mapping_unmap_atomic(p, KM_USER0);
+ io_mapping_unmap_atomic(p);
}
}
^ permalink raw reply [flat|nested] 24+ messages in thread
* [PATCH 2/5] mm: stack based kmap_atomic
@ 2010-09-18 15:53 ` Peter Zijlstra
0 siblings, 0 replies; 24+ messages in thread
From: Peter Zijlstra @ 2010-09-18 15:53 UTC (permalink / raw)
To: Linus Torvalds
Cc: Andrew Morton, Ingo Molnar, Thomas Gleixner, H. Peter Anvin,
Russell King, David Howells, Ralf Baechle, David Miller,
Chris Metcalf, Paul Mackerras, Benjamin Herrenschmidt,
Hugh Dickins, linux-kernel, linux-mm, linux-arch, Peter Zijlstra,
Rik van Riel
[-- Attachment #1: kmap-1.patch --]
[-- Type: text/plain, Size: 246832 bytes --]
Keep the current interface but ignore the KM_type and use a stack
based approach.
The advantage is that we get rid of crappy code like:
#define __KM_PTE \
(in_nmi() ? KM_NMI_PTE : \
in_irq() ? KM_IRQ_PTE : \
KM_PTE0)
and in general can stop worrying about what context we're in and what
kmap slots might be appropriate for that.
The down-side is that FRV kmap_atomic gets more expensive.
For now we use a CPP trick suggested by Andrew:
#define kmap_atomic(page, args...) __kmap_atomic(page)
to avoid having to touch all kmap_atomic users in a single patch.
[ not compiled on:
- nm10300: the arch doesn't actually build with highmem to begin with ]
Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
---
arch/arm/include/asm/highmem.h | 6
arch/arm/mm/highmem.c | 23
arch/frv/include/asm/highmem.h | 25
arch/frv/mb93090-mb00/pci-dma.c | 4
arch/frv/mm/cache-page.c | 8
arch/frv/mm/highmem.c | 51
arch/mips/include/asm/highmem.h | 18
arch/mips/mm/highmem.c | 50
arch/mn10300/include/asm/highmem.h | 42
arch/powerpc/include/asm/highmem.h | 9
arch/powerpc/mm/highmem.c | 35
arch/sparc/include/asm/highmem.h | 4
arch/sparc/mm/highmem.c | 48
arch/tile/include/asm/highmem.h | 10
arch/tile/mm/highmem.c | 85
arch/x86/include/asm/highmem.h | 11
arch/x86/include/asm/iomap.h | 4
arch/x86/kernel/crash_dump_32.c | 2
arch/x86/mm/highmem_32.c | 74
arch/x86/mm/iomap_32.c | 43
drivers/gpu/drm/i915/i915_gem.c | 9
drivers/gpu/drm/i915/i915_irq.c | 5
drivers/gpu/drm/i915/intel_overlay.c | 5
drivers/gpu/drm/nouveau/nouveau_bios.c | 8
drivers/gpu/drm/ttm/ttm_bo_util.c | 8
include/linux/highmem.h | 61
include/linux/io-mapping.h | 14
mm/highmem.c | 62
usr/src/linux-2.6/drivers/gpu/drm/nouveau/nouveau_bios.c | 6832 ---------------
29 files changed, 361 insertions(+), 7195 deletions(-)
Index: linux-2.6/arch/arm/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/highmem.c
+++ linux-2.6/arch/arm/mm/highmem.c
@@ -36,18 +36,17 @@ void kunmap(struct page *page)
}
EXPORT_SYMBOL(kunmap);
-void *kmap_atomic(struct page *page, enum km_type type)
+void *__kmap_atomic(struct page *page)
{
unsigned int idx;
unsigned long vaddr;
void *kmap;
+ int type;
pagefault_disable();
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
-
#ifdef CONFIG_DEBUG_HIGHMEM
/*
* There is no cache coherency issue when non VIVT, so force the
@@ -61,6 +60,8 @@ void *kmap_atomic(struct page *page, enu
if (kmap)
return kmap;
+ type = kmap_atomic_idx_push();
+
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -80,14 +81,17 @@ void *kmap_atomic(struct page *page, enu
return (void *)vaddr;
}
-EXPORT_SYMBOL(kmap_atomic);
+EXPORT_SYMBOL(__kmap_atomic);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- unsigned int idx = type + KM_TYPE_NR * smp_processor_id();
+ int idx, type;
if (kvaddr >= (void *)FIXADDR_START) {
+ type = kmap_atomic_idx_pop();
+ idx = type + KM_TYPE_NR * smp_processor_id();
+
if (cache_is_vivt())
__cpuc_flush_dcache_area((void *)vaddr, PAGE_SIZE);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -103,15 +107,16 @@ void kunmap_atomic_notypecheck(void *kva
}
pagefault_enable();
}
-EXPORT_SYMBOL(kunmap_atomic_notypecheck);
+EXPORT_SYMBOL(__kunmap_atomic);
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
+void *kmap_atomic_pfn(unsigned long pfn)
{
- unsigned int idx;
unsigned long vaddr;
+ int idx, type;
pagefault_disable();
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
Index: linux-2.6/arch/frv/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/frv/include/asm/highmem.h
+++ linux-2.6/arch/frv/include/asm/highmem.h
@@ -112,12 +112,11 @@ extern struct page *kmap_atomic_to_page(
(void *) damlr; \
})
-static inline void *kmap_atomic(struct page *page, enum km_type type)
+static inline void *kmap_atomic_primary(struct page *page, enum km_type type)
{
unsigned long paddr;
pagefault_disable();
- debug_kmap_atomic(type);
paddr = page_to_phys(page);
switch (type) {
@@ -125,14 +124,6 @@ static inline void *kmap_atomic(struct p
case 1: return __kmap_atomic_primary(1, paddr, 3);
case 2: return __kmap_atomic_primary(2, paddr, 4);
case 3: return __kmap_atomic_primary(3, paddr, 5);
- case 4: return __kmap_atomic_primary(4, paddr, 6);
- case 5: return __kmap_atomic_primary(5, paddr, 7);
- case 6: return __kmap_atomic_primary(6, paddr, 8);
- case 7: return __kmap_atomic_primary(7, paddr, 9);
- case 8: return __kmap_atomic_primary(8, paddr, 10);
-
- case 9 ... 9 + NR_TLB_LINES - 1:
- return __kmap_atomic_secondary(type - 9, paddr);
default:
BUG();
@@ -152,22 +143,13 @@ do { \
asm volatile("tlbpr %0,gr0,#4,#1" : : "r"(vaddr) : "memory"); \
} while(0)
-static inline void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+static inline void kunmap_atomic_primary(void *kvaddr, enum km_type type)
{
switch (type) {
case 0: __kunmap_atomic_primary(0, 2); break;
case 1: __kunmap_atomic_primary(1, 3); break;
case 2: __kunmap_atomic_primary(2, 4); break;
case 3: __kunmap_atomic_primary(3, 5); break;
- case 4: __kunmap_atomic_primary(4, 6); break;
- case 5: __kunmap_atomic_primary(5, 7); break;
- case 6: __kunmap_atomic_primary(6, 8); break;
- case 7: __kunmap_atomic_primary(7, 9); break;
- case 8: __kunmap_atomic_primary(8, 10); break;
-
- case 9 ... 9 + NR_TLB_LINES - 1:
- __kunmap_atomic_secondary(type - 9, kvaddr);
- break;
default:
BUG();
@@ -175,6 +157,9 @@ static inline void kunmap_atomic_notypec
pagefault_enable();
}
+void *__kmap_atomic(struct page *page);
+void __kunmap_atomic(void *kvaddr);
+
#endif /* !__ASSEMBLY__ */
#endif /* __KERNEL__ */
Index: linux-2.6/arch/mips/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/mips/mm/highmem.c
+++ linux-2.6/arch/mips/mm/highmem.c
@@ -9,7 +9,7 @@ static pte_t *kmap_pte;
unsigned long highstart_pfn, highend_pfn;
-void *__kmap(struct page *page)
+void *kmap(struct page *page)
{
void *addr;
@@ -21,16 +21,16 @@ void *__kmap(struct page *page)
return addr;
}
-EXPORT_SYMBOL(__kmap);
+EXPORT_SYMBOL(kmap);
-void __kunmap(struct page *page)
+void kunmap(struct page *page)
{
BUG_ON(in_interrupt());
if (!PageHighMem(page))
return;
kunmap_high(page);
}
-EXPORT_SYMBOL(__kunmap);
+EXPORT_SYMBOL(kunmap);
/*
* kmap_atomic/kunmap_atomic is significantly faster than kmap/kunmap because
@@ -41,17 +41,17 @@ EXPORT_SYMBOL(__kunmap);
* kmaps are appropriate for short, tight code paths only.
*/
-void *__kmap_atomic(struct page *page, enum km_type type)
+void *__kmap_atomic(struct page *page)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
pagefault_disable();
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -64,43 +64,47 @@ void *__kmap_atomic(struct page *page, e
}
EXPORT_SYMBOL(__kmap_atomic);
-void __kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
-#ifdef CONFIG_DEBUG_HIGHMEM
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
+ int type;
if (vaddr < FIXADDR_START) { // FIXME
pagefault_enable();
return;
}
- BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
+ type = kmap_atomic_idx_pop();
+#ifdef CONFIG_DEBUG_HIGHMEM
+ {
+ int idx = type + KM_TYPE_NR * smp_processor_id();
- /*
- * force other mappings to Oops if they'll try to access
- * this pte without first remap it
- */
- pte_clear(&init_mm, vaddr, kmap_pte-idx);
- local_flush_tlb_one(vaddr);
-#endif
+ BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
+ /*
+ * force other mappings to Oops if they'll try to access
+ * this pte without first remap it
+ */
+ pte_clear(&init_mm, vaddr, kmap_pte-idx);
+ local_flush_tlb_one(vaddr);
+ }
+#endif
pagefault_enable();
}
-EXPORT_SYMBOL(__kunmap_atomic_notypecheck);
+EXPORT_SYMBOL(__kunmap_atomic);
/*
* This is the same as kmap_atomic() but can map memory that doesn't
* have a struct page associated with it.
*/
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
+void *kmap_atomic_pfn(unsigned long pfn)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
pagefault_disable();
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
set_pte(kmap_pte-idx, pfn_pte(pfn, PAGE_KERNEL));
@@ -109,7 +113,7 @@ void *kmap_atomic_pfn(unsigned long pfn,
return (void*) vaddr;
}
-struct page *__kmap_atomic_to_page(void *ptr)
+struct page *kmap_atomic_to_page(void *ptr)
{
unsigned long idx, vaddr = (unsigned long)ptr;
pte_t *pte;
Index: linux-2.6/arch/mn10300/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/mn10300/include/asm/highmem.h
+++ linux-2.6/arch/mn10300/include/asm/highmem.h
@@ -70,15 +70,16 @@ static inline void kunmap(struct page *p
* be used in IRQ contexts, so in some (very limited) cases we need
* it.
*/
-static inline unsigned long kmap_atomic(struct page *page, enum km_type type)
+static inline unsigned long __kmap_atomic(struct page *page)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
+ pagefault_disable();
if (page < highmem_start_page)
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#if HIGHMEM_DEBUG
@@ -91,26 +92,35 @@ static inline unsigned long kmap_atomic(
return vaddr;
}
-static inline void kunmap_atomic_notypecheck(unsigned long vaddr, enum km_type type)
+static inline void __kunmap_atomic(unsigned long vaddr)
{
-#if HIGHMEM_DEBUG
- enum fixed_addresses idx = type + KM_TYPE_NR * smp_processor_id();
+ int type;
- if (vaddr < FIXADDR_START) /* FIXME */
+ if (vaddr < FIXADDR_START) { /* FIXME */
+ pagefault_enable();
return;
+ }
- if (vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx))
- BUG();
+ type = kmap_atomic_idx_pop();
- /*
- * force other mappings to Oops if they'll try to access
- * this pte without first remap it
- */
- pte_clear(kmap_pte - idx);
- __flush_tlb_one(vaddr);
+#if HIGHMEM_DEBUG
+ {
+ unsigned int idx;
+ idx = type + KM_TYPE_NR * smp_processor_id();
+
+ if (vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx))
+ BUG();
+
+ /*
+ * force other mappings to Oops if they'll try to access
+ * this pte without first remap it
+ */
+ pte_clear(kmap_pte - idx);
+ __flush_tlb_one(vaddr);
+ }
#endif
+ pagefault_enable();
}
-
#endif /* __KERNEL__ */
#endif /* _ASM_HIGHMEM_H */
Index: linux-2.6/arch/powerpc/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/powerpc/mm/highmem.c
+++ linux-2.6/arch/powerpc/mm/highmem.c
@@ -29,17 +29,17 @@
* be used in IRQ contexts, so in some (very limited) cases we need
* it.
*/
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot(struct page *page, pgprot_t prot)
{
- unsigned int idx;
unsigned long vaddr;
+ int idx, type;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
pagefault_disable();
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -52,26 +52,33 @@ void *kmap_atomic_prot(struct page *page
}
EXPORT_SYMBOL(kmap_atomic_prot);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
-#ifdef CONFIG_DEBUG_HIGHMEM
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
+ int type;
if (vaddr < __fix_to_virt(FIX_KMAP_END)) {
pagefault_enable();
return;
}
- BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
+ type = kmap_atomic_idx_pop();
- /*
- * force other mappings to Oops if they'll try to access
- * this pte without first remap it
- */
- pte_clear(&init_mm, vaddr, kmap_pte-idx);
- local_flush_tlb_page(NULL, vaddr);
+#ifdef CONFIG_DEBUG_HIGHMEM
+ {
+ unsigned int idx;
+
+ idx = type + KM_TYPE_NR * smp_processor_id();
+ BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
+
+ /*
+ * force other mappings to Oops if they'll try to access
+ * this pte without first remap it
+ */
+ pte_clear(&init_mm, vaddr, kmap_pte-idx);
+ local_flush_tlb_page(NULL, vaddr);
+ }
#endif
pagefault_enable();
}
-EXPORT_SYMBOL(kunmap_atomic_notypecheck);
+EXPORT_SYMBOL(__kunmap_atomic);
Index: linux-2.6/arch/sparc/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/sparc/mm/highmem.c
+++ linux-2.6/arch/sparc/mm/highmem.c
@@ -29,17 +29,17 @@
#include <asm/tlbflush.h>
#include <asm/fixmap.h>
-void *kmap_atomic(struct page *page, enum km_type type)
+void *__kmap_atomic(struct page *page)
{
- unsigned long idx;
unsigned long vaddr;
+ long idx, type;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
pagefault_disable();
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
@@ -63,44 +63,50 @@ void *kmap_atomic(struct page *page, enu
return (void*) vaddr;
}
-EXPORT_SYMBOL(kmap_atomic);
+EXPORT_SYMBOL(__kmap_atomic);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
-#ifdef CONFIG_DEBUG_HIGHMEM
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- unsigned long idx = type + KM_TYPE_NR*smp_processor_id();
+ int type;
if (vaddr < FIXADDR_START) { // FIXME
pagefault_enable();
return;
}
- BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN+idx));
+ type = kmap_atomic_idx_pop();
-/* XXX Fix - Anton */
+#ifdef CONFIG_DEBUG_HIGHMEM
+ {
+ unsigned long idx;
+
+ idx = type + KM_TYPE_NR * smp_processor_id();
+ BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN+idx));
+
+ /* XXX Fix - Anton */
#if 0
- __flush_cache_one(vaddr);
+ __flush_cache_one(vaddr);
#else
- flush_cache_all();
+ flush_cache_all();
#endif
- /*
- * force other mappings to Oops if they'll try to access
- * this pte without first remap it
- */
- pte_clear(&init_mm, vaddr, kmap_pte-idx);
-/* XXX Fix - Anton */
+ /*
+ * force other mappings to Oops if they'll try to access
+ * this pte without first remap it
+ */
+ pte_clear(&init_mm, vaddr, kmap_pte-idx);
+ /* XXX Fix - Anton */
#if 0
- __flush_tlb_one(vaddr);
+ __flush_tlb_one(vaddr);
#else
- flush_tlb_all();
+ flush_tlb_all();
#endif
+ }
#endif
-
pagefault_enable();
}
-EXPORT_SYMBOL(kunmap_atomic_notypecheck);
+EXPORT_SYMBOL(__kunmap_atomic);
/* We may be fed a pagetable here by ptep_to_xxx and others. */
struct page *kmap_atomic_to_page(void *ptr)
Index: linux-2.6/arch/x86/mm/highmem_32.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/highmem_32.c
+++ linux-2.6/arch/x86/mm/highmem_32.c
@@ -9,6 +9,7 @@ void *kmap(struct page *page)
return page_address(page);
return kmap_high(page);
}
+EXPORT_SYMBOL(kmap);
void kunmap(struct page *page)
{
@@ -18,6 +19,7 @@ void kunmap(struct page *page)
return;
kunmap_high(page);
}
+EXPORT_SYMBOL(kunmap);
/*
* kmap_atomic/kunmap_atomic is significantly faster than kmap/kunmap because
@@ -27,10 +29,10 @@ void kunmap(struct page *page)
* However when holding an atomic kmap it is not legal to sleep, so atomic
* kmaps are appropriate for short, tight code paths only.
*/
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot(struct page *page, pgprot_t prot)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
pagefault_disable();
@@ -38,8 +40,7 @@ void *kmap_atomic_prot(struct page *page
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
-
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
BUG_ON(!pte_none(*(kmap_pte-idx)));
@@ -47,44 +48,57 @@ void *kmap_atomic_prot(struct page *page
return (void *)vaddr;
}
+EXPORT_SYMBOL(kmap_atomic_prot);
+
+void *__kmap_atomic(struct page *page)
+{
+ return kmap_atomic_prot(page, kmap_prot);
+}
+EXPORT_SYMBOL(__kmap_atomic);
-void *kmap_atomic(struct page *page, enum km_type type)
+/*
+ * This is the same as kmap_atomic() but can map memory that doesn't
+ * have a struct page associated with it.
+ */
+void *kmap_atomic_pfn(unsigned long pfn)
{
- return kmap_atomic_prot(page, type, kmap_prot);
+ return kmap_atomic_prot_pfn(pfn, kmap_prot);
}
+EXPORT_SYMBOL_GPL(kmap_atomic_pfn);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
- /*
- * Force other mappings to Oops if they'll try to access this pte
- * without first remap it. Keeping stale mappings around is a bad idea
- * also, in case the page changes cacheability attributes or becomes
- * a protected page in a hypervisor.
- */
- if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx))
+ if (vaddr >= __fix_to_virt(FIX_KMAP_END) &&
+ vaddr <= __fix_to_virt(FIX_KMAP_BEGIN)) {
+ int idx, type;
+
+ type = kmap_atomic_idx_pop();
+ idx = type + KM_TYPE_NR * smp_processor_id();
+
+#ifdef CONFIG_DEBUG_HIGHMEM
+ WARN_ON_ONCE(idx !=
+ ((vaddr - __fix_to_virt(FIX_KMAP_BEGIN)) >> PAGE_SHIFT));
+#endif
+ /*
+ * Force other mappings to Oops if they'll try to access this
+ * pte without first remap it. Keeping stale mappings around
+ * is a bad idea also, in case the page changes cacheability
+ * attributes or becomes a protected page in a hypervisor.
+ */
kpte_clear_flush(kmap_pte-idx, vaddr);
- else {
+ }
#ifdef CONFIG_DEBUG_HIGHMEM
+ else {
BUG_ON(vaddr < PAGE_OFFSET);
BUG_ON(vaddr >= (unsigned long)high_memory);
-#endif
}
+#endif
pagefault_enable();
}
-
-/*
- * This is the same as kmap_atomic() but can map memory that doesn't
- * have a struct page associated with it.
- */
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
-{
- return kmap_atomic_prot_pfn(pfn, type, kmap_prot);
-}
-EXPORT_SYMBOL_GPL(kmap_atomic_pfn); /* temporarily in use by i915 GEM until vmap */
+EXPORT_SYMBOL(__kunmap_atomic);
struct page *kmap_atomic_to_page(void *ptr)
{
@@ -98,12 +112,6 @@ struct page *kmap_atomic_to_page(void *p
pte = kmap_pte - (idx - FIX_KMAP_BEGIN);
return pte_page(*pte);
}
-
-EXPORT_SYMBOL(kmap);
-EXPORT_SYMBOL(kunmap);
-EXPORT_SYMBOL(kmap_atomic);
-EXPORT_SYMBOL(kunmap_atomic_notypecheck);
-EXPORT_SYMBOL(kmap_atomic_prot);
EXPORT_SYMBOL(kmap_atomic_to_page);
void __init set_highmem_pages_init(void)
Index: linux-2.6/include/linux/highmem.h
===================================================================
--- linux-2.6.orig/include/linux/highmem.h
+++ linux-2.6/include/linux/highmem.h
@@ -28,18 +28,6 @@ static inline void invalidate_kernel_vma
#include <asm/kmap_types.h>
-#ifdef CONFIG_DEBUG_HIGHMEM
-
-void debug_kmap_atomic(enum km_type type);
-
-#else
-
-static inline void debug_kmap_atomic(enum km_type type)
-{
-}
-
-#endif
-
#ifdef CONFIG_HIGHMEM
#include <asm/highmem.h>
@@ -49,6 +37,27 @@ extern unsigned long totalhigh_pages;
void kmap_flush_unused(void);
+DECLARE_PER_CPU(int, __kmap_atomic_idx);
+
+static inline int kmap_atomic_idx_push(void)
+{
+ int idx = __get_cpu_var(__kmap_atomic_idx)++;
+#ifdef CONFIG_DEBUG_HIGHMEM
+ WARN_ON_ONCE(in_irq() && !irqs_disabled());
+ BUG_ON(idx > KM_TYPE_NR);
+#endif
+ return idx;
+}
+
+static inline int kmap_atomic_idx_pop(void)
+{
+ int idx = --__get_cpu_var(__kmap_atomic_idx);
+#ifdef CONFIG_DEBUG_HIGHMEM
+ BUG_ON(idx < 0);
+#endif
+ return idx;
+}
+
#else /* CONFIG_HIGHMEM */
static inline unsigned int nr_free_highpages(void) { return 0; }
@@ -66,19 +75,19 @@ static inline void kunmap(struct page *p
{
}
-static inline void *kmap_atomic(struct page *page, enum km_type idx)
+static inline void *__kmap_atomic(struct page *page)
{
pagefault_disable();
return page_address(page);
}
-#define kmap_atomic_prot(page, idx, prot) kmap_atomic(page, idx)
+#define kmap_atomic_prot(page, prot) __kmap_atomic(page)
-static inline void kunmap_atomic_notypecheck(void *addr, enum km_type idx)
+static inline void __kunmap_atomic(void *addr)
{
pagefault_enable();
}
-#define kmap_atomic_pfn(pfn, idx) kmap_atomic(pfn_to_page(pfn), (idx))
+#define kmap_atomic_pfn(pfn) kmap_atomic(pfn_to_page(pfn))
#define kmap_atomic_to_page(ptr) virt_to_page(ptr)
#define kmap_flush_unused() do {} while(0)
@@ -86,12 +95,20 @@ static inline void kunmap_atomic_notypec
#endif /* CONFIG_HIGHMEM */
-/* Prevent people trying to call kunmap_atomic() as if it were kunmap() */
-/* kunmap_atomic() should get the return value of kmap_atomic, not the page. */
-#define kunmap_atomic(addr, idx) do { \
- BUILD_BUG_ON(__same_type((addr), struct page *)); \
- kunmap_atomic_notypecheck((addr), (idx)); \
- } while (0)
+/*
+ * Make both: kmap_atomic(page, idx) and kmap_atomic(page) work.
+ */
+#define kmap_atomic(page, args...) __kmap_atomic(page)
+
+/*
+ * Prevent people trying to call kunmap_atomic() as if it were kunmap()
+ * kunmap_atomic() should get the return value of kmap_atomic, not the page.
+ */
+#define kunmap_atomic(addr, args...) \
+do { \
+ BUILD_BUG_ON(__same_type((addr), struct page *)); \
+ __kunmap_atomic(addr); \
+} while (0)
/* when CONFIG_HIGHMEM is not set these will be plain clear/copy_page */
#ifndef clear_user_highpage
Index: linux-2.6/mm/highmem.c
===================================================================
--- linux-2.6.orig/mm/highmem.c
+++ linux-2.6/mm/highmem.c
@@ -42,6 +42,10 @@
unsigned long totalhigh_pages __read_mostly;
EXPORT_SYMBOL(totalhigh_pages);
+
+DEFINE_PER_CPU(int, __kmap_atomic_idx);
+EXPORT_PER_CPU_SYMBOL(__kmap_atomic_idx);
+
unsigned int nr_free_highpages (void)
{
pg_data_t *pgdat;
@@ -422,61 +426,3 @@ void __init page_address_init(void)
}
#endif /* defined(CONFIG_HIGHMEM) && !defined(WANT_PAGE_VIRTUAL) */
-
-#ifdef CONFIG_DEBUG_HIGHMEM
-
-void debug_kmap_atomic(enum km_type type)
-{
- static int warn_count = 10;
-
- if (unlikely(warn_count < 0))
- return;
-
- if (unlikely(in_interrupt())) {
- if (in_nmi()) {
- if (type != KM_NMI && type != KM_NMI_PTE) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (in_irq()) {
- if (type != KM_IRQ0 && type != KM_IRQ1 &&
- type != KM_BIO_SRC_IRQ && type != KM_BIO_DST_IRQ &&
- type != KM_BOUNCE_READ && type != KM_IRQ_PTE) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (!irqs_disabled()) { /* softirq */
- if (type != KM_IRQ0 && type != KM_IRQ1 &&
- type != KM_SOFTIRQ0 && type != KM_SOFTIRQ1 &&
- type != KM_SKB_SUNRPC_DATA &&
- type != KM_SKB_DATA_SOFTIRQ &&
- type != KM_BOUNCE_READ) {
- WARN_ON(1);
- warn_count--;
- }
- }
- }
-
- if (type == KM_IRQ0 || type == KM_IRQ1 || type == KM_BOUNCE_READ ||
- type == KM_BIO_SRC_IRQ || type == KM_BIO_DST_IRQ ||
- type == KM_IRQ_PTE || type == KM_NMI ||
- type == KM_NMI_PTE ) {
- if (!irqs_disabled()) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (type == KM_SOFTIRQ0 || type == KM_SOFTIRQ1) {
- if (irq_count() == 0 && !irqs_disabled()) {
- WARN_ON(1);
- warn_count--;
- }
- }
-#ifdef CONFIG_KGDB_KDB
- if (unlikely(type == KM_KDB && atomic_read(&kgdb_active) == -1)) {
- WARN_ON(1);
- warn_count--;
- }
-#endif /* CONFIG_KGDB_KDB */
-}
-
-#endif
Index: linux-2.6/arch/x86/mm/iomap_32.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/iomap_32.c
+++ linux-2.6/arch/x86/mm/iomap_32.c
@@ -48,21 +48,20 @@ int iomap_create_wc(resource_size_t base
}
EXPORT_SYMBOL_GPL(iomap_create_wc);
-void
-iomap_free(resource_size_t base, unsigned long size)
+void iomap_free(resource_size_t base, unsigned long size)
{
io_free_memtype(base, base + size);
}
EXPORT_SYMBOL_GPL(iomap_free);
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
pagefault_disable();
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
set_pte(kmap_pte - idx, pfn_pte(pfn, prot));
@@ -72,10 +71,10 @@ void *kmap_atomic_prot_pfn(unsigned long
}
/*
- * Map 'pfn' using fixed map 'type' and protections 'prot'
+ * Map 'pfn' using protections 'prot'
*/
void __iomem *
-iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
+iomap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
{
/*
* For non-PAT systems, promote PAGE_KERNEL_WC to PAGE_KERNEL_UC_MINUS.
@@ -86,24 +85,34 @@ iomap_atomic_prot_pfn(unsigned long pfn,
if (!pat_enabled && pgprot_val(prot) == pgprot_val(PAGE_KERNEL_WC))
prot = PAGE_KERNEL_UC_MINUS;
- return (void __force __iomem *) kmap_atomic_prot_pfn(pfn, type, prot);
+ return (void __force __iomem *) kmap_atomic_prot_pfn(pfn, prot);
}
EXPORT_SYMBOL_GPL(iomap_atomic_prot_pfn);
void
-iounmap_atomic(void __iomem *kvaddr, enum km_type type)
+iounmap_atomic(void __iomem *kvaddr)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
- /*
- * Force other mappings to Oops if they'll try to access this pte
- * without first remap it. Keeping stale mappings around is a bad idea
- * also, in case the page changes cacheability attributes or becomes
- * a protected page in a hypervisor.
- */
- if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx))
+ if (vaddr >= __fix_to_virt(FIX_KMAP_END) &&
+ vaddr <= __fix_to_virt(FIX_KMAP_BEGIN)) {
+ int idx, type;
+
+ type = kmap_atomic_idx_pop();
+ idx = type + KM_TYPE_NR * smp_processor_id();
+
+#ifdef CONFIG_DEBUG_HIGHMEM
+ WARN_ON_ONCE(idx !=
+ ((vaddr - __fix_to_virt(FIX_KMAP_BEGIN)) >> PAGE_SHIFT));
+#endif
+ /*
+ * Force other mappings to Oops if they'll try to access this
+ * pte without first remap it. Keeping stale mappings around
+ * is a bad idea also, in case the page changes cacheability
+ * attributes or becomes a protected page in a hypervisor.
+ */
kpte_clear_flush(kmap_pte-idx, vaddr);
+ }
pagefault_enable();
}
Index: linux-2.6/arch/frv/mb93090-mb00/pci-dma.c
===================================================================
--- linux-2.6.orig/arch/frv/mb93090-mb00/pci-dma.c
+++ linux-2.6/arch/frv/mb93090-mb00/pci-dma.c
@@ -61,14 +61,14 @@ int dma_map_sg(struct device *dev, struc
dampr2 = __get_DAMPR(2);
for (i = 0; i < nents; i++) {
- vaddr = kmap_atomic(sg_page(&sg[i]), __KM_CACHE);
+ vaddr = kmap_atomic_primary(sg_page(&sg[i]), __KM_CACHE);
frv_dcache_writeback((unsigned long) vaddr,
(unsigned long) vaddr + PAGE_SIZE);
}
- kunmap_atomic(vaddr, __KM_CACHE);
+ kunmap_atomic_primary(vaddr, __KM_CACHE);
if (dampr2) {
__set_DAMPR(2, dampr2);
__set_IAMPR(2, dampr2);
Index: linux-2.6/arch/frv/mm/cache-page.c
===================================================================
--- linux-2.6.orig/arch/frv/mm/cache-page.c
+++ linux-2.6/arch/frv/mm/cache-page.c
@@ -26,11 +26,11 @@ void flush_dcache_page(struct page *page
dampr2 = __get_DAMPR(2);
- vaddr = kmap_atomic(page, __KM_CACHE);
+ vaddr = kmap_atomic_primary(page, __KM_CACHE);
frv_dcache_writeback((unsigned long) vaddr, (unsigned long) vaddr + PAGE_SIZE);
- kunmap_atomic(vaddr, __KM_CACHE);
+ kunmap_atomic_primary(vaddr, __KM_CACHE);
if (dampr2) {
__set_DAMPR(2, dampr2);
@@ -54,12 +54,12 @@ void flush_icache_user_range(struct vm_a
dampr2 = __get_DAMPR(2);
- vaddr = kmap_atomic(page, __KM_CACHE);
+ vaddr = kmap_atomic_primary(page, __KM_CACHE);
start = (start & ~PAGE_MASK) | (unsigned long) vaddr;
frv_cache_wback_inv(start, start + len);
- kunmap_atomic(vaddr, __KM_CACHE);
+ kunmap_atomic_primary(vaddr, __KM_CACHE);
if (dampr2) {
__set_DAMPR(2, dampr2);
Index: linux-2.6/arch/frv/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/frv/mm/highmem.c
+++ linux-2.6/arch/frv/mm/highmem.c
@@ -36,3 +36,54 @@ struct page *kmap_atomic_to_page(void *p
{
return virt_to_page(ptr);
}
+
+void *__kmap_atomic(struct page *page)
+{
+ unsigned long paddr;
+ int type;
+
+ pagefault_disable();
+ type = kmap_atomic_idx_push();
+ paddr = page_to_phys(page);
+
+ switch (type) {
+ /*
+ * The first 4 primary maps are reserved for architecture code
+ */
+ case 0: return __kmap_atomic_primary(4, paddr, 6);
+ case 1: return __kmap_atomic_primary(5, paddr, 7);
+ case 2: return __kmap_atomic_primary(6, paddr, 8);
+ case 3: return __kmap_atomic_primary(7, paddr, 9);
+ case 4: return __kmap_atomic_primary(8, paddr, 10);
+
+ case 5 ... 5 + NR_TLB_LINES - 1:
+ return __kmap_atomic_secondary(type - 5, paddr);
+
+ default:
+ BUG();
+ return NULL;
+ }
+}
+EXPORT_SYMBOL(__kmap_atomic);
+
+void __kunmap_atomic(void *kvaddr)
+{
+ int type = kmap_atomic_idx_pop();
+ switch (type) {
+ case 0: __kunmap_atomic_primary(4, 6); break;
+ case 1: __kunmap_atomic_primary(5, 7); break;
+ case 2: __kunmap_atomic_primary(6, 8); break;
+ case 3: __kunmap_atomic_primary(7, 9); break;
+ case 4: __kunmap_atomic_primary(8, 10); break;
+
+ case 5 ... 5 + NR_TLB_LINES - 1:
+ __kunmap_atomic_secondary(type - 5, kvaddr);
+ break;
+
+ default:
+ BUG();
+ }
+ pagefault_enable();
+}
+EXPORT_SYMBOL(__kunmap_atomic);
+
Index: linux-2.6/arch/arm/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/arm/include/asm/highmem.h
+++ linux-2.6/arch/arm/include/asm/highmem.h
@@ -35,9 +35,9 @@ extern void kunmap_high_l1_vipt(struct p
#ifdef CONFIG_HIGHMEM
extern void *kmap(struct page *page);
extern void kunmap(struct page *page);
-extern void *kmap_atomic(struct page *page, enum km_type type);
-extern void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
-extern void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
+extern void *__kmap_atomic(struct page *page);
+extern void __kunmap_atomic(void *kvaddr);
+extern void *kmap_atomic_pfn(unsigned long pfn);
extern struct page *kmap_atomic_to_page(const void *ptr);
#endif
Index: linux-2.6/arch/mips/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/mips/include/asm/highmem.h
+++ linux-2.6/arch/mips/include/asm/highmem.h
@@ -45,18 +45,12 @@ extern pte_t *pkmap_page_table;
extern void * kmap_high(struct page *page);
extern void kunmap_high(struct page *page);
-extern void *__kmap(struct page *page);
-extern void __kunmap(struct page *page);
-extern void *__kmap_atomic(struct page *page, enum km_type type);
-extern void __kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
-extern void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
-extern struct page *__kmap_atomic_to_page(void *ptr);
-
-#define kmap __kmap
-#define kunmap __kunmap
-#define kmap_atomic __kmap_atomic
-#define kunmap_atomic_notypecheck __kunmap_atomic_notypecheck
-#define kmap_atomic_to_page __kmap_atomic_to_page
+extern void *kmap(struct page *page);
+extern void kunmap(struct page *page);
+extern void *__kmap_atomic(struct page *page);
+extern void __kunmap_atomic(void *kvaddr);
+extern void *kmap_atomic_pfn(unsigned long pfn);
+extern struct page *kmap_atomic_to_page(void *ptr);
#define flush_cache_kmaps() flush_cache_all()
Index: linux-2.6/arch/powerpc/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/powerpc/include/asm/highmem.h
+++ linux-2.6/arch/powerpc/include/asm/highmem.h
@@ -60,9 +60,8 @@ extern pte_t *pkmap_page_table;
extern void *kmap_high(struct page *page);
extern void kunmap_high(struct page *page);
-extern void *kmap_atomic_prot(struct page *page, enum km_type type,
- pgprot_t prot);
-extern void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
+extern void *kmap_atomic_prot(struct page *page, pgprot_t prot);
+extern void __kunmap_atomic(void *kvaddr);
static inline void *kmap(struct page *page)
{
@@ -80,9 +79,9 @@ static inline void kunmap(struct page *p
kunmap_high(page);
}
-static inline void *kmap_atomic(struct page *page, enum km_type type)
+static inline void *__kmap_atomic(struct page *page)
{
- return kmap_atomic_prot(page, type, kmap_prot);
+ return kmap_atomic_prot(page, kmap_prot);
}
static inline struct page *kmap_atomic_to_page(void *ptr)
Index: linux-2.6/arch/sparc/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/sparc/include/asm/highmem.h
+++ linux-2.6/arch/sparc/include/asm/highmem.h
@@ -70,8 +70,8 @@ static inline void kunmap(struct page *p
kunmap_high(page);
}
-extern void *kmap_atomic(struct page *page, enum km_type type);
-extern void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
+extern void *__kmap_atomic(struct page *page);
+extern void __kunmap_atomic(void *kvaddr);
extern struct page *kmap_atomic_to_page(void *vaddr);
#define flush_cache_kmaps() flush_cache_all()
Index: linux-2.6/arch/tile/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/tile/include/asm/highmem.h
+++ linux-2.6/arch/tile/include/asm/highmem.h
@@ -60,12 +60,12 @@ void *kmap_fix_kpte(struct page *page, i
/* This macro is used only in map_new_virtual() to map "page". */
#define kmap_prot page_to_kpgprot(page)
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
+void *__kmap_atomic(struct page *page);
+void __kunmap_atomic(void *kvaddr);
+void *kmap_atomic_pfn(unsigned long pfn);
+void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
struct page *kmap_atomic_to_page(void *ptr);
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot);
-void *kmap_atomic(struct page *page, enum km_type type);
+void *kmap_atomic_prot(struct page *page, pgprot_t prot);
void kmap_atomic_fix_kpte(struct page *page, int finished);
#define flush_cache_kmaps() do { } while (0)
Index: linux-2.6/arch/tile/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/tile/mm/highmem.c
+++ linux-2.6/arch/tile/mm/highmem.c
@@ -56,50 +56,6 @@ void kunmap(struct page *page)
}
EXPORT_SYMBOL(kunmap);
-static void debug_kmap_atomic_prot(enum km_type type)
-{
-#ifdef CONFIG_DEBUG_HIGHMEM
- static unsigned warn_count = 10;
-
- if (unlikely(warn_count == 0))
- return;
-
- if (unlikely(in_interrupt())) {
- if (in_irq()) {
- if (type != KM_IRQ0 && type != KM_IRQ1 &&
- type != KM_BIO_SRC_IRQ &&
- /* type != KM_BIO_DST_IRQ && */
- type != KM_BOUNCE_READ) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (!irqs_disabled()) { /* softirq */
- if (type != KM_IRQ0 && type != KM_IRQ1 &&
- type != KM_SOFTIRQ0 && type != KM_SOFTIRQ1 &&
- type != KM_SKB_SUNRPC_DATA &&
- type != KM_SKB_DATA_SOFTIRQ &&
- type != KM_BOUNCE_READ) {
- WARN_ON(1);
- warn_count--;
- }
- }
- }
-
- if (type == KM_IRQ0 || type == KM_IRQ1 || type == KM_BOUNCE_READ ||
- type == KM_BIO_SRC_IRQ /* || type == KM_BIO_DST_IRQ */) {
- if (!irqs_disabled()) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (type == KM_SOFTIRQ0 || type == KM_SOFTIRQ1) {
- if (irq_count() == 0 && !irqs_disabled()) {
- WARN_ON(1);
- warn_count--;
- }
- }
-#endif
-}
-
/*
* Describe a single atomic mapping of a page on a given cpu at a
* given address, and allow it to be linked into a list.
@@ -240,10 +196,10 @@ void kmap_atomic_fix_kpte(struct page *p
* When holding an atomic kmap is is not legal to sleep, so atomic
* kmaps are appropriate for short, tight code paths only.
*/
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot(struct page *page, pgprot_t prot)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
pte_t *pte;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
@@ -255,8 +211,7 @@ void *kmap_atomic_prot(struct page *page
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic_prot(type);
-
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
pte = kmap_get_pte(vaddr);
@@ -269,25 +224,31 @@ void *kmap_atomic_prot(struct page *page
}
EXPORT_SYMBOL(kmap_atomic_prot);
-void *kmap_atomic(struct page *page, enum km_type type)
+void *__kmap_atomic(struct page *page)
{
/* PAGE_NONE is a magic value that tells us to check immutability. */
return kmap_atomic_prot(page, type, PAGE_NONE);
}
-EXPORT_SYMBOL(kmap_atomic);
+EXPORT_SYMBOL(__kmap_atomic);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
- /*
- * Force other mappings to Oops if they try to access this pte without
- * first remapping it. Keeping stale mappings around is a bad idea.
- */
- if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx)) {
+ if (vaddr >= __fix_to_virt(FIX_KMAP_END) &&
+ vaddr <= __fix_to_virt(FIX_KMAP_BEGIN)) {
pte_t *pte = kmap_get_pte(vaddr);
pte_t pteval = *pte;
+ int idx, type;
+
+ type = kmap_atomic_idx_pop();
+ idx = type + KM_TYPE_NR*smp_processor_id();
+
+ /*
+ * Force other mappings to Oops if they try to access this pte
+ * without first remapping it. Keeping stale mappings around
+ * is a bad idea.
+ */
BUG_ON(!pte_present(pteval) && !pte_migrating(pteval));
kmap_atomic_unregister(pte_page(pteval), vaddr);
kpte_clear_flush(pte, vaddr);
@@ -300,19 +261,19 @@ void kunmap_atomic_notypecheck(void *kva
arch_flush_lazy_mmu_mode();
pagefault_enable();
}
-EXPORT_SYMBOL(kunmap_atomic_notypecheck);
+EXPORT_SYMBOL(__kunmap_atomic);
/*
* This API is supposed to allow us to map memory without a "struct page".
* Currently we don't support this, though this may change in the future.
*/
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
+void *kmap_atomic_pfn(unsigned long pfn)
{
- return kmap_atomic(pfn_to_page(pfn), type);
+ return kmap_atomic(pfn_to_page(pfn));
}
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
{
- return kmap_atomic_prot(pfn_to_page(pfn), type, prot);
+ return kmap_atomic_prot(pfn_to_page(pfn), prot);
}
struct page *kmap_atomic_to_page(void *ptr)
Index: linux-2.6/arch/x86/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/highmem.h
+++ linux-2.6/arch/x86/include/asm/highmem.h
@@ -59,11 +59,12 @@ extern void kunmap_high(struct page *pag
void *kmap(struct page *page);
void kunmap(struct page *page);
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot);
-void *kmap_atomic(struct page *page, enum km_type type);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
+
+void *kmap_atomic_prot(struct page *page, pgprot_t prot);
+void *__kmap_atomic(struct page *page);
+void __kunmap_atomic(void *kvaddr);
+void *kmap_atomic_pfn(unsigned long pfn);
+void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
struct page *kmap_atomic_to_page(void *ptr);
#define flush_cache_kmaps() do { } while (0)
Index: linux-2.6/arch/x86/kernel/crash_dump_32.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/crash_dump_32.c
+++ linux-2.6/arch/x86/kernel/crash_dump_32.c
@@ -61,7 +61,7 @@ ssize_t copy_oldmem_page(unsigned long p
if (!is_crashed_pfn_valid(pfn))
return -EFAULT;
- vaddr = kmap_atomic_pfn(pfn, KM_PTE0);
+ vaddr = kmap_atomic_pfn(pfn);
if (!userbuf) {
memcpy(buf, (vaddr + offset), csize);
Index: linux-2.6/arch/x86/include/asm/iomap.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/iomap.h
+++ linux-2.6/arch/x86/include/asm/iomap.h
@@ -27,10 +27,10 @@
#include <asm/tlbflush.h>
void __iomem *
-iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
+iomap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
void
-iounmap_atomic(void __iomem *kvaddr, enum km_type type);
+iounmap_atomic(void __iomem *kvaddr);
int
iomap_create_wc(resource_size_t base, unsigned long size, pgprot_t *prot);
Index: linux-2.6/drivers/gpu/drm/i915/i915_gem.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/i915/i915_gem.c
+++ linux-2.6/drivers/gpu/drm/i915/i915_gem.c
@@ -504,10 +504,10 @@ fast_user_write(struct io_mapping *mappi
char *vaddr_atomic;
unsigned long unwritten;
- vaddr_atomic = io_mapping_map_atomic_wc(mapping, page_base, KM_USER0);
+ vaddr_atomic = io_mapping_map_atomic_wc(mapping, page_base);
unwritten = __copy_from_user_inatomic_nocache(vaddr_atomic + page_offset,
user_data, length);
- io_mapping_unmap_atomic(vaddr_atomic, KM_USER0);
+ io_mapping_unmap_atomic(vaddr_atomic);
if (unwritten)
return -EFAULT;
return 0;
@@ -3327,8 +3327,7 @@ i915_gem_object_pin_and_relocate(struct
reloc_offset = obj_priv->gtt_offset + reloc->offset;
reloc_page = io_mapping_map_atomic_wc(dev_priv->mm.gtt_mapping,
(reloc_offset &
- ~(PAGE_SIZE - 1)),
- KM_USER0);
+ ~(PAGE_SIZE - 1)));
reloc_entry = (uint32_t __iomem *)(reloc_page +
(reloc_offset & (PAGE_SIZE - 1)));
reloc_val = target_obj_priv->gtt_offset + reloc->delta;
@@ -3339,7 +3338,7 @@ i915_gem_object_pin_and_relocate(struct
readl(reloc_entry), reloc_val);
#endif
writel(reloc_val, reloc_entry);
- io_mapping_unmap_atomic(reloc_page, KM_USER0);
+ io_mapping_unmap_atomic(reloc_page);
/* The updated presumed offset for this entry will be
* copied back out to the user.
Index: linux-2.6/drivers/gpu/drm/i915/i915_irq.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/i915/i915_irq.c
+++ linux-2.6/drivers/gpu/drm/i915/i915_irq.c
@@ -456,10 +456,9 @@ i915_error_object_create(struct drm_devi
local_irq_save(flags);
s = io_mapping_map_atomic_wc(dev_priv->mm.gtt_mapping,
- reloc_offset,
- KM_IRQ0);
+ reloc_offset);
memcpy_fromio(d, s, PAGE_SIZE);
- io_mapping_unmap_atomic(s, KM_IRQ0);
+ io_mapping_unmap_atomic(s);
local_irq_restore(flags);
dst->pages[page] = d;
Index: linux-2.6/drivers/gpu/drm/i915/intel_overlay.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/i915/intel_overlay.c
+++ linux-2.6/drivers/gpu/drm/i915/intel_overlay.c
@@ -185,8 +185,7 @@ static struct overlay_registers *intel_o
if (OVERLAY_NONPHYSICAL(overlay->dev)) {
regs = io_mapping_map_atomic_wc(dev_priv->mm.gtt_mapping,
- overlay->reg_bo->gtt_offset,
- KM_USER0);
+ overlay->reg_bo->gtt_offset);
if (!regs) {
DRM_ERROR("failed to map overlay regs in GTT\n");
@@ -201,7 +200,7 @@ static struct overlay_registers *intel_o
static void intel_overlay_unmap_regs_atomic(struct intel_overlay *overlay)
{
if (OVERLAY_NONPHYSICAL(overlay->dev))
- io_mapping_unmap_atomic(overlay->virt_addr, KM_USER0);
+ io_mapping_unmap_atomic(overlay->virt_addr);
overlay->virt_addr = NULL;
Index: linux-2.6/drivers/gpu/drm/ttm/ttm_bo_util.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ linux-2.6/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -170,7 +170,7 @@ static int ttm_copy_io_ttm_page(struct t
src = (void *)((unsigned long)src + (page << PAGE_SHIFT));
#ifdef CONFIG_X86
- dst = kmap_atomic_prot(d, KM_USER0, prot);
+ dst = kmap_atomic_prot(d, prot);
#else
if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
dst = vmap(&d, 1, 0, prot);
@@ -183,7 +183,7 @@ static int ttm_copy_io_ttm_page(struct t
memcpy_fromio(dst, src, PAGE_SIZE);
#ifdef CONFIG_X86
- kunmap_atomic(dst, KM_USER0);
+ kunmap_atomic(dst);
#else
if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
vunmap(dst);
@@ -206,7 +206,7 @@ static int ttm_copy_ttm_io_page(struct t
dst = (void *)((unsigned long)dst + (page << PAGE_SHIFT));
#ifdef CONFIG_X86
- src = kmap_atomic_prot(s, KM_USER0, prot);
+ src = kmap_atomic_prot(s, prot);
#else
if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
src = vmap(&s, 1, 0, prot);
@@ -219,7 +219,7 @@ static int ttm_copy_ttm_io_page(struct t
memcpy_toio(dst, src, PAGE_SIZE);
#ifdef CONFIG_X86
- kunmap_atomic(src, KM_USER0);
+ kunmap_atomic(src);
#else
if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
vunmap(src);
Index: linux-2.6/include/linux/io-mapping.h
===================================================================
--- linux-2.6.orig/include/linux/io-mapping.h
+++ linux-2.6/include/linux/io-mapping.h
@@ -81,8 +81,7 @@ io_mapping_free(struct io_mapping *mappi
/* Atomic map/unmap */
static inline void __iomem *
io_mapping_map_atomic_wc(struct io_mapping *mapping,
- unsigned long offset,
- int slot)
+ unsigned long offset)
{
resource_size_t phys_addr;
unsigned long pfn;
@@ -90,13 +89,13 @@ io_mapping_map_atomic_wc(struct io_mappi
BUG_ON(offset >= mapping->size);
phys_addr = mapping->base + offset;
pfn = (unsigned long) (phys_addr >> PAGE_SHIFT);
- return iomap_atomic_prot_pfn(pfn, slot, mapping->prot);
+ return iomap_atomic_prot_pfn(pfn, mapping->prot);
}
static inline void
-io_mapping_unmap_atomic(void __iomem *vaddr, int slot)
+io_mapping_unmap_atomic(void __iomem *vaddr)
{
- iounmap_atomic(vaddr, slot);
+ iounmap_atomic(vaddr);
}
static inline void __iomem *
@@ -137,14 +136,13 @@ io_mapping_free(struct io_mapping *mappi
/* Atomic map/unmap */
static inline void __iomem *
io_mapping_map_atomic_wc(struct io_mapping *mapping,
- unsigned long offset,
- int slot)
+ unsigned long offset)
{
return ((char __force __iomem *) mapping) + offset;
}
static inline void
-io_mapping_unmap_atomic(void __iomem *vaddr, int slot)
+io_mapping_unmap_atomic(void __iomem *vaddr)
{
}
Index: linux-2.6/usr/src/linux-2.6/drivers/gpu/drm/nouveau/nouveau_bios.c
===================================================================
--- linux-2.6.orig/usr/src/linux-2.6/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ /dev/null
@@ -1,6832 +0,0 @@
-/*
- * Copyright 2005-2006 Erik Waling
- * Copyright 2006 Stephane Marchesin
- * Copyright 2007-2009 Stuart Bennett
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
- * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include "drmP.h"
-#define NV_DEBUG_NOTRACE
-#include "nouveau_drv.h"
-#include "nouveau_hw.h"
-#include "nouveau_encoder.h"
-
-#include <linux/io-mapping.h>
-
-/* these defines are made up */
-#define NV_CIO_CRE_44_HEADA 0x0
-#define NV_CIO_CRE_44_HEADB 0x3
-#define FEATURE_MOBILE 0x10 /* also FEATURE_QUADRO for BMP */
-#define LEGACY_I2C_CRT 0x80
-#define LEGACY_I2C_PANEL 0x81
-#define LEGACY_I2C_TV 0x82
-
-#define EDID1_LEN 128
-
-#define BIOSLOG(sip, fmt, arg...) NV_DEBUG(sip->dev, fmt, ##arg)
-#define LOG_OLD_VALUE(x)
-
-#define ROM16(x) le16_to_cpu(*(uint16_t *)&(x))
-#define ROM32(x) le32_to_cpu(*(uint32_t *)&(x))
-
-struct init_exec {
- bool execute;
- bool repeat;
-};
-
-static bool nv_cksum(const uint8_t *data, unsigned int length)
-{
- /*
- * There's a few checksums in the BIOS, so here's a generic checking
- * function.
- */
- int i;
- uint8_t sum = 0;
-
- for (i = 0; i < length; i++)
- sum += data[i];
-
- if (sum)
- return true;
-
- return false;
-}
-
-static int
-score_vbios(struct drm_device *dev, const uint8_t *data, const bool writeable)
-{
- if (!(data[0] == 0x55 && data[1] == 0xAA)) {
- NV_TRACEWARN(dev, "... BIOS signature not found\n");
- return 0;
- }
-
- if (nv_cksum(data, data[2] * 512)) {
- NV_TRACEWARN(dev, "... BIOS checksum invalid\n");
- /* if a ro image is somewhat bad, it's probably all rubbish */
- return writeable ? 2 : 1;
- } else
- NV_TRACE(dev, "... appears to be valid\n");
-
- return 3;
-}
-
-static void load_vbios_prom(struct drm_device *dev, uint8_t *data)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- uint32_t pci_nv_20, save_pci_nv_20;
- int pcir_ptr;
- int i;
-
- if (dev_priv->card_type >= NV_50)
- pci_nv_20 = 0x88050;
- else
- pci_nv_20 = NV_PBUS_PCI_NV_20;
-
- /* enable ROM access */
- save_pci_nv_20 = nvReadMC(dev, pci_nv_20);
- nvWriteMC(dev, pci_nv_20,
- save_pci_nv_20 & ~NV_PBUS_PCI_NV_20_ROM_SHADOW_ENABLED);
-
- /* bail if no rom signature */
- if (nv_rd08(dev, NV_PROM_OFFSET) != 0x55 ||
- nv_rd08(dev, NV_PROM_OFFSET + 1) != 0xaa)
- goto out;
-
- /* additional check (see note below) - read PCI record header */
- pcir_ptr = nv_rd08(dev, NV_PROM_OFFSET + 0x18) |
- nv_rd08(dev, NV_PROM_OFFSET + 0x19) << 8;
- if (nv_rd08(dev, NV_PROM_OFFSET + pcir_ptr) != 'P' ||
- nv_rd08(dev, NV_PROM_OFFSET + pcir_ptr + 1) != 'C' ||
- nv_rd08(dev, NV_PROM_OFFSET + pcir_ptr + 2) != 'I' ||
- nv_rd08(dev, NV_PROM_OFFSET + pcir_ptr + 3) != 'R')
- goto out;
-
- /* on some 6600GT/6800LE prom reads are messed up. nvclock alleges a
- * a good read may be obtained by waiting or re-reading (cargocult: 5x)
- * each byte. we'll hope pramin has something usable instead
- */
- for (i = 0; i < NV_PROM_SIZE; i++)
- data[i] = nv_rd08(dev, NV_PROM_OFFSET + i);
-
-out:
- /* disable ROM access */
- nvWriteMC(dev, pci_nv_20,
- save_pci_nv_20 | NV_PBUS_PCI_NV_20_ROM_SHADOW_ENABLED);
-}
-
-static void load_vbios_pramin(struct drm_device *dev, uint8_t *data)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- uint32_t old_bar0_pramin = 0;
- int i;
-
- if (dev_priv->card_type >= NV_50) {
- uint32_t vbios_vram = (nv_rd32(dev, 0x619f04) & ~0xff) << 8;
-
- if (!vbios_vram)
- vbios_vram = (nv_rd32(dev, 0x1700) << 16) + 0xf0000;
-
- old_bar0_pramin = nv_rd32(dev, 0x1700);
- nv_wr32(dev, 0x1700, vbios_vram >> 16);
- }
-
- /* bail if no rom signature */
- if (nv_rd08(dev, NV_PRAMIN_OFFSET) != 0x55 ||
- nv_rd08(dev, NV_PRAMIN_OFFSET + 1) != 0xaa)
- goto out;
-
- for (i = 0; i < NV_PROM_SIZE; i++)
- data[i] = nv_rd08(dev, NV_PRAMIN_OFFSET + i);
-
-out:
- if (dev_priv->card_type >= NV_50)
- nv_wr32(dev, 0x1700, old_bar0_pramin);
-}
-
-static void load_vbios_pci(struct drm_device *dev, uint8_t *data)
-{
- void __iomem *rom = NULL;
- size_t rom_len;
- int ret;
-
- ret = pci_enable_rom(dev->pdev);
- if (ret)
- return;
-
- rom = pci_map_rom(dev->pdev, &rom_len);
- if (!rom)
- goto out;
- memcpy_fromio(data, rom, rom_len);
- pci_unmap_rom(dev->pdev, rom);
-
-out:
- pci_disable_rom(dev->pdev);
-}
-
-static void load_vbios_acpi(struct drm_device *dev, uint8_t *data)
-{
- int i;
- int ret;
- int size = 64 * 1024;
-
- if (!nouveau_acpi_rom_supported(dev->pdev))
- return;
-
- for (i = 0; i < (size / ROM_BIOS_PAGE); i++) {
- ret = nouveau_acpi_get_bios_chunk(data,
- (i * ROM_BIOS_PAGE),
- ROM_BIOS_PAGE);
- if (ret <= 0)
- break;
- }
- return;
-}
-
-struct methods {
- const char desc[8];
- void (*loadbios)(struct drm_device *, uint8_t *);
- const bool rw;
-};
-
-static struct methods shadow_methods[] = {
- { "PRAMIN", load_vbios_pramin, true },
- { "PROM", load_vbios_prom, false },
- { "PCIROM", load_vbios_pci, true },
- { "ACPI", load_vbios_acpi, true },
-};
-#define NUM_SHADOW_METHODS ARRAY_SIZE(shadow_methods)
-
-static bool NVShadowVBIOS(struct drm_device *dev, uint8_t *data)
-{
- struct methods *methods = shadow_methods;
- int testscore = 3;
- int scores[NUM_SHADOW_METHODS], i;
-
- if (nouveau_vbios) {
- for (i = 0; i < NUM_SHADOW_METHODS; i++)
- if (!strcasecmp(nouveau_vbios, methods[i].desc))
- break;
-
- if (i < NUM_SHADOW_METHODS) {
- NV_INFO(dev, "Attempting to use BIOS image from %s\n",
- methods[i].desc);
-
- methods[i].loadbios(dev, data);
- if (score_vbios(dev, data, methods[i].rw))
- return true;
- }
-
- NV_ERROR(dev, "VBIOS source \'%s\' invalid\n", nouveau_vbios);
- }
-
- for (i = 0; i < NUM_SHADOW_METHODS; i++) {
- NV_TRACE(dev, "Attempting to load BIOS image from %s\n",
- methods[i].desc);
- data[0] = data[1] = 0; /* avoid reuse of previous image */
- methods[i].loadbios(dev, data);
- scores[i] = score_vbios(dev, data, methods[i].rw);
- if (scores[i] == testscore)
- return true;
- }
-
- while (--testscore > 0) {
- for (i = 0; i < NUM_SHADOW_METHODS; i++) {
- if (scores[i] == testscore) {
- NV_TRACE(dev, "Using BIOS image from %s\n",
- methods[i].desc);
- methods[i].loadbios(dev, data);
- return true;
- }
- }
- }
-
- NV_ERROR(dev, "No valid BIOS image found\n");
- return false;
-}
-
-struct init_tbl_entry {
- char *name;
- uint8_t id;
- /* Return:
- * > 0: success, length of opcode
- * 0: success, but abort further parsing of table (INIT_DONE etc)
- * < 0: failure, table parsing will be aborted
- */
- int (*handler)(struct nvbios *, uint16_t, struct init_exec *);
-};
-
-struct bit_entry {
- uint8_t id[2];
- uint16_t length;
- uint16_t offset;
-};
-
-static int parse_init_table(struct nvbios *, unsigned int, struct init_exec *);
-
-#define MACRO_INDEX_SIZE 2
-#define MACRO_SIZE 8
-#define CONDITION_SIZE 12
-#define IO_FLAG_CONDITION_SIZE 9
-#define IO_CONDITION_SIZE 5
-#define MEM_INIT_SIZE 66
-
-static void still_alive(void)
-{
-#if 0
- sync();
- msleep(2);
-#endif
-}
-
-static uint32_t
-munge_reg(struct nvbios *bios, uint32_t reg)
-{
- struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
- struct dcb_entry *dcbent = bios->display.output;
-
- if (dev_priv->card_type < NV_50)
- return reg;
-
- if (reg & 0x40000000) {
- BUG_ON(!dcbent);
-
- reg += (ffs(dcbent->or) - 1) * 0x800;
- if ((reg & 0x20000000) && !(dcbent->sorconf.link & 1))
- reg += 0x00000080;
- }
-
- reg &= ~0x60000000;
- return reg;
-}
-
-static int
-valid_reg(struct nvbios *bios, uint32_t reg)
-{
- struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
- struct drm_device *dev = bios->dev;
-
- /* C51 has misaligned regs on purpose. Marvellous */
- if (reg & 0x2 ||
- (reg & 0x1 && dev_priv->vbios.chip_version != 0x51))
- NV_ERROR(dev, "======= misaligned reg 0x%08X =======\n", reg);
-
- /* warn on C51 regs that haven't been verified accessible in tracing */
- if (reg & 0x1 && dev_priv->vbios.chip_version == 0x51 &&
- reg != 0x130d && reg != 0x1311 && reg != 0x60081d)
- NV_WARN(dev, "=== C51 misaligned reg 0x%08X not verified ===\n",
- reg);
-
- if (reg >= (8*1024*1024)) {
- NV_ERROR(dev, "=== reg 0x%08x out of mapped bounds ===\n", reg);
- return 0;
- }
-
- return 1;
-}
-
-static bool
-valid_idx_port(struct nvbios *bios, uint16_t port)
-{
- struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
- struct drm_device *dev = bios->dev;
-
- /*
- * If adding more ports here, the read/write functions below will need
- * updating so that the correct mmio range (PRMCIO, PRMDIO, PRMVIO) is
- * used for the port in question
- */
- if (dev_priv->card_type < NV_50) {
- if (port == NV_CIO_CRX__COLOR)
- return true;
- if (port == NV_VIO_SRX)
- return true;
- } else {
- if (port == NV_CIO_CRX__COLOR)
- return true;
- }
-
- NV_ERROR(dev, "========== unknown indexed io port 0x%04X ==========\n",
- port);
-
- return false;
-}
-
-static bool
-valid_port(struct nvbios *bios, uint16_t port)
-{
- struct drm_device *dev = bios->dev;
-
- /*
- * If adding more ports here, the read/write functions below will need
- * updating so that the correct mmio range (PRMCIO, PRMDIO, PRMVIO) is
- * used for the port in question
- */
- if (port == NV_VIO_VSE2)
- return true;
-
- NV_ERROR(dev, "========== unknown io port 0x%04X ==========\n", port);
-
- return false;
-}
-
-static uint32_t
-bios_rd32(struct nvbios *bios, uint32_t reg)
-{
- uint32_t data;
-
- reg = munge_reg(bios, reg);
- if (!valid_reg(bios, reg))
- return 0;
-
- /*
- * C51 sometimes uses regs with bit0 set in the address. For these
- * cases there should exist a translation in a BIOS table to an IO
- * port address which the BIOS uses for accessing the reg
- *
- * These only seem to appear for the power control regs to a flat panel,
- * and the GPIO regs at 0x60081*. In C51 mmio traces the normal regs
- * for 0x1308 and 0x1310 are used - hence the mask below. An S3
- * suspend-resume mmio trace from a C51 will be required to see if this
- * is true for the power microcode in 0x14.., or whether the direct IO
- * port access method is needed
- */
- if (reg & 0x1)
- reg &= ~0x1;
-
- data = nv_rd32(bios->dev, reg);
-
- BIOSLOG(bios, " Read: Reg: 0x%08X, Data: 0x%08X\n", reg, data);
-
- return data;
-}
-
-static void
-bios_wr32(struct nvbios *bios, uint32_t reg, uint32_t data)
-{
- struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
-
- reg = munge_reg(bios, reg);
- if (!valid_reg(bios, reg))
- return;
-
- /* see note in bios_rd32 */
- if (reg & 0x1)
- reg &= 0xfffffffe;
-
- LOG_OLD_VALUE(bios_rd32(bios, reg));
- BIOSLOG(bios, " Write: Reg: 0x%08X, Data: 0x%08X\n", reg, data);
-
- if (dev_priv->vbios.execute) {
- still_alive();
- nv_wr32(bios->dev, reg, data);
- }
-}
-
-static uint8_t
-bios_idxprt_rd(struct nvbios *bios, uint16_t port, uint8_t index)
-{
- struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
- struct drm_device *dev = bios->dev;
- uint8_t data;
-
- if (!valid_idx_port(bios, port))
- return 0;
-
- if (dev_priv->card_type < NV_50) {
- if (port == NV_VIO_SRX)
- data = NVReadVgaSeq(dev, bios->state.crtchead, index);
- else /* assume NV_CIO_CRX__COLOR */
- data = NVReadVgaCrtc(dev, bios->state.crtchead, index);
- } else {
- uint32_t data32;
-
- data32 = bios_rd32(bios, NV50_PDISPLAY_VGACRTC(index & ~3));
- data = (data32 >> ((index & 3) << 3)) & 0xff;
- }
-
- BIOSLOG(bios, " Indexed IO read: Port: 0x%04X, Index: 0x%02X, "
- "Head: 0x%02X, Data: 0x%02X\n",
- port, index, bios->state.crtchead, data);
- return data;
-}
-
-static void
-bios_idxprt_wr(struct nvbios *bios, uint16_t port, uint8_t index, uint8_t data)
-{
- struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
- struct drm_device *dev = bios->dev;
-
- if (!valid_idx_port(bios, port))
- return;
-
- /*
- * The current head is maintained in the nvbios member state.crtchead.
- * We trap changes to CR44 and update the head variable and hence the
- * register set written.
- * As CR44 only exists on CRTC0, we update crtchead to head0 in advance
- * of the write, and to head1 after the write
- */
- if (port == NV_CIO_CRX__COLOR && index == NV_CIO_CRE_44 &&
- data != NV_CIO_CRE_44_HEADB)
- bios->state.crtchead = 0;
-
- LOG_OLD_VALUE(bios_idxprt_rd(bios, port, index));
- BIOSLOG(bios, " Indexed IO write: Port: 0x%04X, Index: 0x%02X, "
- "Head: 0x%02X, Data: 0x%02X\n",
- port, index, bios->state.crtchead, data);
-
- if (bios->execute && dev_priv->card_type < NV_50) {
- still_alive();
- if (port == NV_VIO_SRX)
- NVWriteVgaSeq(dev, bios->state.crtchead, index, data);
- else /* assume NV_CIO_CRX__COLOR */
- NVWriteVgaCrtc(dev, bios->state.crtchead, index, data);
- } else
- if (bios->execute) {
- uint32_t data32, shift = (index & 3) << 3;
-
- still_alive();
-
- data32 = bios_rd32(bios, NV50_PDISPLAY_VGACRTC(index & ~3));
- data32 &= ~(0xff << shift);
- data32 |= (data << shift);
- bios_wr32(bios, NV50_PDISPLAY_VGACRTC(index & ~3), data32);
- }
-
- if (port == NV_CIO_CRX__COLOR &&
- index == NV_CIO_CRE_44 && data == NV_CIO_CRE_44_HEADB)
- bios->state.crtchead = 1;
-}
-
-static uint8_t
-bios_port_rd(struct nvbios *bios, uint16_t port)
-{
- uint8_t data, head = bios->state.crtchead;
-
- if (!valid_port(bios, port))
- return 0;
-
- data = NVReadPRMVIO(bios->dev, head, NV_PRMVIO0_OFFSET + port);
-
- BIOSLOG(bios, " IO read: Port: 0x%04X, Head: 0x%02X, Data: 0x%02X\n",
- port, head, data);
-
- return data;
-}
-
-static void
-bios_port_wr(struct nvbios *bios, uint16_t port, uint8_t data)
-{
- int head = bios->state.crtchead;
-
- if (!valid_port(bios, port))
- return;
-
- LOG_OLD_VALUE(bios_port_rd(bios, port));
- BIOSLOG(bios, " IO write: Port: 0x%04X, Head: 0x%02X, Data: 0x%02X\n",
- port, head, data);
-
- if (!bios->execute)
- return;
-
- still_alive();
- NVWritePRMVIO(bios->dev, head, NV_PRMVIO0_OFFSET + port, data);
-}
-
-static bool
-io_flag_condition_met(struct nvbios *bios, uint16_t offset, uint8_t cond)
-{
- /*
- * The IO flag condition entry has 2 bytes for the CRTC port; 1 byte
- * for the CRTC index; 1 byte for the mask to apply to the value
- * retrieved from the CRTC; 1 byte for the shift right to apply to the
- * masked CRTC value; 2 bytes for the offset to the flag array, to
- * which the shifted value is added; 1 byte for the mask applied to the
- * value read from the flag array; and 1 byte for the value to compare
- * against the masked byte from the flag table.
- */
-
- uint16_t condptr = bios->io_flag_condition_tbl_ptr + cond * IO_FLAG_CONDITION_SIZE;
- uint16_t crtcport = ROM16(bios->data[condptr]);
- uint8_t crtcindex = bios->data[condptr + 2];
- uint8_t mask = bios->data[condptr + 3];
- uint8_t shift = bios->data[condptr + 4];
- uint16_t flagarray = ROM16(bios->data[condptr + 5]);
- uint8_t flagarraymask = bios->data[condptr + 7];
- uint8_t cmpval = bios->data[condptr + 8];
- uint8_t data;
-
- BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, "
- "Shift: 0x%02X, FlagArray: 0x%04X, FAMask: 0x%02X, "
- "Cmpval: 0x%02X\n",
- offset, crtcport, crtcindex, mask, shift, flagarray, flagarraymask, cmpval);
-
- data = bios_idxprt_rd(bios, crtcport, crtcindex);
-
- data = bios->data[flagarray + ((data & mask) >> shift)];
- data &= flagarraymask;
-
- BIOSLOG(bios, "0x%04X: Checking if 0x%02X equals 0x%02X\n",
- offset, data, cmpval);
-
- return (data == cmpval);
-}
-
-static bool
-bios_condition_met(struct nvbios *bios, uint16_t offset, uint8_t cond)
-{
- /*
- * The condition table entry has 4 bytes for the address of the
- * register to check, 4 bytes for a mask to apply to the register and
- * 4 for a test comparison value
- */
-
- uint16_t condptr = bios->condition_tbl_ptr + cond * CONDITION_SIZE;
- uint32_t reg = ROM32(bios->data[condptr]);
- uint32_t mask = ROM32(bios->data[condptr + 4]);
- uint32_t cmpval = ROM32(bios->data[condptr + 8]);
- uint32_t data;
-
- BIOSLOG(bios, "0x%04X: Cond: 0x%02X, Reg: 0x%08X, Mask: 0x%08X\n",
- offset, cond, reg, mask);
-
- data = bios_rd32(bios, reg) & mask;
-
- BIOSLOG(bios, "0x%04X: Checking if 0x%08X equals 0x%08X\n",
- offset, data, cmpval);
-
- return (data == cmpval);
-}
-
-static bool
-io_condition_met(struct nvbios *bios, uint16_t offset, uint8_t cond)
-{
- /*
- * The IO condition entry has 2 bytes for the IO port address; 1 byte
- * for the index to write to io_port; 1 byte for the mask to apply to
- * the byte read from io_port+1; and 1 byte for the value to compare
- * against the masked byte.
- */
-
- uint16_t condptr = bios->io_condition_tbl_ptr + cond * IO_CONDITION_SIZE;
- uint16_t io_port = ROM16(bios->data[condptr]);
- uint8_t port_index = bios->data[condptr + 2];
- uint8_t mask = bios->data[condptr + 3];
- uint8_t cmpval = bios->data[condptr + 4];
-
- uint8_t data = bios_idxprt_rd(bios, io_port, port_index) & mask;
-
- BIOSLOG(bios, "0x%04X: Checking if 0x%02X equals 0x%02X\n",
- offset, data, cmpval);
-
- return (data == cmpval);
-}
-
-static int
-nv50_pll_set(struct drm_device *dev, uint32_t reg, uint32_t clk)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- uint32_t reg0 = nv_rd32(dev, reg + 0);
- uint32_t reg1 = nv_rd32(dev, reg + 4);
- struct nouveau_pll_vals pll;
- struct pll_lims pll_limits;
- int ret;
-
- ret = get_pll_limits(dev, reg, &pll_limits);
- if (ret)
- return ret;
-
- clk = nouveau_calc_pll_mnp(dev, &pll_limits, clk, &pll);
- if (!clk)
- return -ERANGE;
-
- reg0 = (reg0 & 0xfff8ffff) | (pll.log2P << 16);
- reg1 = (reg1 & 0xffff0000) | (pll.N1 << 8) | pll.M1;
-
- if (dev_priv->vbios.execute) {
- still_alive();
- nv_wr32(dev, reg + 4, reg1);
- nv_wr32(dev, reg + 0, reg0);
- }
-
- return 0;
-}
-
-static int
-setPLL(struct nvbios *bios, uint32_t reg, uint32_t clk)
-{
- struct drm_device *dev = bios->dev;
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- /* clk in kHz */
- struct pll_lims pll_lim;
- struct nouveau_pll_vals pllvals;
- int ret;
-
- if (dev_priv->card_type >= NV_50)
- return nv50_pll_set(dev, reg, clk);
-
- /* high regs (such as in the mac g5 table) are not -= 4 */
- ret = get_pll_limits(dev, reg > 0x405c ? reg : reg - 4, &pll_lim);
- if (ret)
- return ret;
-
- clk = nouveau_calc_pll_mnp(dev, &pll_lim, clk, &pllvals);
- if (!clk)
- return -ERANGE;
-
- if (bios->execute) {
- still_alive();
- nouveau_hw_setpll(dev, reg, &pllvals);
- }
-
- return 0;
-}
-
-static int dcb_entry_idx_from_crtchead(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
-
- /*
- * For the results of this function to be correct, CR44 must have been
- * set (using bios_idxprt_wr to set crtchead), CR58 set for CR57 = 0,
- * and the DCB table parsed, before the script calling the function is
- * run. run_digital_op_script is example of how to do such setup
- */
-
- uint8_t dcb_entry = NVReadVgaCrtc5758(dev, bios->state.crtchead, 0);
-
- if (dcb_entry > bios->dcb.entries) {
- NV_ERROR(dev, "CR58 doesn't have a valid DCB entry currently "
- "(%02X)\n", dcb_entry);
- dcb_entry = 0x7f; /* unused / invalid marker */
- }
-
- return dcb_entry;
-}
-
-static int
-read_dcb_i2c_entry(struct drm_device *dev, int dcb_version, uint8_t *i2ctable, int index, struct dcb_i2c_entry *i2c)
-{
- uint8_t dcb_i2c_ver = dcb_version, headerlen = 0, entry_len = 4;
- int i2c_entries = DCB_MAX_NUM_I2C_ENTRIES;
- int recordoffset = 0, rdofs = 1, wrofs = 0;
- uint8_t port_type = 0;
-
- if (!i2ctable)
- return -EINVAL;
-
- if (dcb_version >= 0x30) {
- if (i2ctable[0] != dcb_version) /* necessary? */
- NV_WARN(dev,
- "DCB I2C table version mismatch (%02X vs %02X)\n",
- i2ctable[0], dcb_version);
- dcb_i2c_ver = i2ctable[0];
- headerlen = i2ctable[1];
- if (i2ctable[2] <= DCB_MAX_NUM_I2C_ENTRIES)
- i2c_entries = i2ctable[2];
- else
- NV_WARN(dev,
- "DCB I2C table has more entries than indexable "
- "(%d entries, max %d)\n", i2ctable[2],
- DCB_MAX_NUM_I2C_ENTRIES);
- entry_len = i2ctable[3];
- /* [4] is i2c_default_indices, read in parse_dcb_table() */
- }
- /*
- * It's your own fault if you call this function on a DCB 1.1 BIOS --
- * the test below is for DCB 1.2
- */
- if (dcb_version < 0x14) {
- recordoffset = 2;
- rdofs = 0;
- wrofs = 1;
- }
-
- if (index == 0xf)
- return 0;
- if (index >= i2c_entries) {
- NV_ERROR(dev, "DCB I2C index too big (%d >= %d)\n",
- index, i2ctable[2]);
- return -ENOENT;
- }
- if (i2ctable[headerlen + entry_len * index + 3] == 0xff) {
- NV_ERROR(dev, "DCB I2C entry invalid\n");
- return -EINVAL;
- }
-
- if (dcb_i2c_ver >= 0x30) {
- port_type = i2ctable[headerlen + recordoffset + 3 + entry_len * index];
-
- /*
- * Fixup for chips using same address offset for read and
- * write.
- */
- if (port_type == 4) /* seen on C51 */
- rdofs = wrofs = 1;
- if (port_type >= 5) /* G80+ */
- rdofs = wrofs = 0;
- }
-
- if (dcb_i2c_ver >= 0x40) {
- if (port_type != 5 && port_type != 6)
- NV_WARN(dev, "DCB I2C table has port type %d\n", port_type);
-
- i2c->entry = ROM32(i2ctable[headerlen + recordoffset + entry_len * index]);
- }
-
- i2c->port_type = port_type;
- i2c->read = i2ctable[headerlen + recordoffset + rdofs + entry_len * index];
- i2c->write = i2ctable[headerlen + recordoffset + wrofs + entry_len * index];
-
- return 0;
-}
-
-static struct nouveau_i2c_chan *
-init_i2c_device_find(struct drm_device *dev, int i2c_index)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct dcb_table *dcb = &dev_priv->vbios.dcb;
-
- if (i2c_index == 0xff) {
- /* note: dcb_entry_idx_from_crtchead needs pre-script set-up */
- int idx = dcb_entry_idx_from_crtchead(dev), shift = 0;
- int default_indices = dcb->i2c_default_indices;
-
- if (idx != 0x7f && dcb->entry[idx].i2c_upper_default)
- shift = 4;
-
- i2c_index = (default_indices >> shift) & 0xf;
- }
- if (i2c_index == 0x80) /* g80+ */
- i2c_index = dcb->i2c_default_indices & 0xf;
- else
- if (i2c_index == 0x81)
- i2c_index = (dcb->i2c_default_indices & 0xf0) >> 4;
-
- if (i2c_index >= DCB_MAX_NUM_I2C_ENTRIES) {
- NV_ERROR(dev, "invalid i2c_index 0x%x\n", i2c_index);
- return NULL;
- }
-
- /* Make sure i2c table entry has been parsed, it may not
- * have been if this is a bus not referenced by a DCB encoder
- */
- read_dcb_i2c_entry(dev, dcb->version, dcb->i2c_table,
- i2c_index, &dcb->i2c[i2c_index]);
-
- return nouveau_i2c_find(dev, i2c_index);
-}
-
-static uint32_t
-get_tmds_index_reg(struct drm_device *dev, uint8_t mlv)
-{
- /*
- * For mlv < 0x80, it is an index into a table of TMDS base addresses.
- * For mlv == 0x80 use the "or" value of the dcb_entry indexed by
- * CR58 for CR57 = 0 to index a table of offsets to the basic
- * 0x6808b0 address.
- * For mlv == 0x81 use the "or" value of the dcb_entry indexed by
- * CR58 for CR57 = 0 to index a table of offsets to the basic
- * 0x6808b0 address, and then flip the offset by 8.
- */
-
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- const int pramdac_offset[13] = {
- 0, 0, 0x8, 0, 0x2000, 0, 0, 0, 0x2008, 0, 0, 0, 0x2000 };
- const uint32_t pramdac_table[4] = {
- 0x6808b0, 0x6808b8, 0x6828b0, 0x6828b8 };
-
- if (mlv >= 0x80) {
- int dcb_entry, dacoffset;
-
- /* note: dcb_entry_idx_from_crtchead needs pre-script set-up */
- dcb_entry = dcb_entry_idx_from_crtchead(dev);
- if (dcb_entry == 0x7f)
- return 0;
- dacoffset = pramdac_offset[bios->dcb.entry[dcb_entry].or];
- if (mlv == 0x81)
- dacoffset ^= 8;
- return 0x6808b0 + dacoffset;
- } else {
- if (mlv >= ARRAY_SIZE(pramdac_table)) {
- NV_ERROR(dev, "Magic Lookup Value too big (%02X)\n",
- mlv);
- return 0;
- }
- return pramdac_table[mlv];
- }
-}
-
-static int
-init_io_restrict_prog(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_IO_RESTRICT_PROG opcode: 0x32 ('2')
- *
- * offset (8 bit): opcode
- * offset + 1 (16 bit): CRTC port
- * offset + 3 (8 bit): CRTC index
- * offset + 4 (8 bit): mask
- * offset + 5 (8 bit): shift
- * offset + 6 (8 bit): count
- * offset + 7 (32 bit): register
- * offset + 11 (32 bit): configuration 1
- * ...
- *
- * Starting at offset + 11 there are "count" 32 bit values.
- * To find out which value to use read index "CRTC index" on "CRTC
- * port", AND this value with "mask" and then bit shift right "shift"
- * bits. Read the appropriate value using this index and write to
- * "register"
- */
-
- uint16_t crtcport = ROM16(bios->data[offset + 1]);
- uint8_t crtcindex = bios->data[offset + 3];
- uint8_t mask = bios->data[offset + 4];
- uint8_t shift = bios->data[offset + 5];
- uint8_t count = bios->data[offset + 6];
- uint32_t reg = ROM32(bios->data[offset + 7]);
- uint8_t config;
- uint32_t configval;
- int len = 11 + count * 4;
-
- if (!iexec->execute)
- return len;
-
- BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, "
- "Shift: 0x%02X, Count: 0x%02X, Reg: 0x%08X\n",
- offset, crtcport, crtcindex, mask, shift, count, reg);
-
- config = (bios_idxprt_rd(bios, crtcport, crtcindex) & mask) >> shift;
- if (config > count) {
- NV_ERROR(bios->dev,
- "0x%04X: Config 0x%02X exceeds maximal bound 0x%02X\n",
- offset, config, count);
- return len;
- }
-
- configval = ROM32(bios->data[offset + 11 + config * 4]);
-
- BIOSLOG(bios, "0x%04X: Writing config %02X\n", offset, config);
-
- bios_wr32(bios, reg, configval);
-
- return len;
-}
-
-static int
-init_repeat(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_REPEAT opcode: 0x33 ('3')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): count
- *
- * Execute script following this opcode up to INIT_REPEAT_END
- * "count" times
- */
-
- uint8_t count = bios->data[offset + 1];
- uint8_t i;
-
- /* no iexec->execute check by design */
-
- BIOSLOG(bios, "0x%04X: Repeating following segment %d times\n",
- offset, count);
-
- iexec->repeat = true;
-
- /*
- * count - 1, as the script block will execute once when we leave this
- * opcode -- this is compatible with bios behaviour as:
- * a) the block is always executed at least once, even if count == 0
- * b) the bios interpreter skips to the op following INIT_END_REPEAT,
- * while we don't
- */
- for (i = 0; i < count - 1; i++)
- parse_init_table(bios, offset + 2, iexec);
-
- iexec->repeat = false;
-
- return 2;
-}
-
-static int
-init_io_restrict_pll(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_IO_RESTRICT_PLL opcode: 0x34 ('4')
- *
- * offset (8 bit): opcode
- * offset + 1 (16 bit): CRTC port
- * offset + 3 (8 bit): CRTC index
- * offset + 4 (8 bit): mask
- * offset + 5 (8 bit): shift
- * offset + 6 (8 bit): IO flag condition index
- * offset + 7 (8 bit): count
- * offset + 8 (32 bit): register
- * offset + 12 (16 bit): frequency 1
- * ...
- *
- * Starting at offset + 12 there are "count" 16 bit frequencies (10kHz).
- * Set PLL register "register" to coefficients for frequency n,
- * selected by reading index "CRTC index" of "CRTC port" ANDed with
- * "mask" and shifted right by "shift".
- *
- * If "IO flag condition index" > 0, and condition met, double
- * frequency before setting it.
- */
-
- uint16_t crtcport = ROM16(bios->data[offset + 1]);
- uint8_t crtcindex = bios->data[offset + 3];
- uint8_t mask = bios->data[offset + 4];
- uint8_t shift = bios->data[offset + 5];
- int8_t io_flag_condition_idx = bios->data[offset + 6];
- uint8_t count = bios->data[offset + 7];
- uint32_t reg = ROM32(bios->data[offset + 8]);
- uint8_t config;
- uint16_t freq;
- int len = 12 + count * 2;
-
- if (!iexec->execute)
- return len;
-
- BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, "
- "Shift: 0x%02X, IO Flag Condition: 0x%02X, "
- "Count: 0x%02X, Reg: 0x%08X\n",
- offset, crtcport, crtcindex, mask, shift,
- io_flag_condition_idx, count, reg);
-
- config = (bios_idxprt_rd(bios, crtcport, crtcindex) & mask) >> shift;
- if (config > count) {
- NV_ERROR(bios->dev,
- "0x%04X: Config 0x%02X exceeds maximal bound 0x%02X\n",
- offset, config, count);
- return len;
- }
-
- freq = ROM16(bios->data[offset + 12 + config * 2]);
-
- if (io_flag_condition_idx > 0) {
- if (io_flag_condition_met(bios, offset, io_flag_condition_idx)) {
- BIOSLOG(bios, "0x%04X: Condition fulfilled -- "
- "frequency doubled\n", offset);
- freq *= 2;
- } else
- BIOSLOG(bios, "0x%04X: Condition not fulfilled -- "
- "frequency unchanged\n", offset);
- }
-
- BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Config: 0x%02X, Freq: %d0kHz\n",
- offset, reg, config, freq);
-
- setPLL(bios, reg, freq * 10);
-
- return len;
-}
-
-static int
-init_end_repeat(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_END_REPEAT opcode: 0x36 ('6')
- *
- * offset (8 bit): opcode
- *
- * Marks the end of the block for INIT_REPEAT to repeat
- */
-
- /* no iexec->execute check by design */
-
- /*
- * iexec->repeat flag necessary to go past INIT_END_REPEAT opcode when
- * we're not in repeat mode
- */
- if (iexec->repeat)
- return 0;
-
- return 1;
-}
-
-static int
-init_copy(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_COPY opcode: 0x37 ('7')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): register
- * offset + 5 (8 bit): shift
- * offset + 6 (8 bit): srcmask
- * offset + 7 (16 bit): CRTC port
- * offset + 9 (8 bit): CRTC index
- * offset + 10 (8 bit): mask
- *
- * Read index "CRTC index" on "CRTC port", AND with "mask", OR with
- * (REGVAL("register") >> "shift" & "srcmask") and write-back to CRTC
- * port
- */
-
- uint32_t reg = ROM32(bios->data[offset + 1]);
- uint8_t shift = bios->data[offset + 5];
- uint8_t srcmask = bios->data[offset + 6];
- uint16_t crtcport = ROM16(bios->data[offset + 7]);
- uint8_t crtcindex = bios->data[offset + 9];
- uint8_t mask = bios->data[offset + 10];
- uint32_t data;
- uint8_t crtcdata;
-
- if (!iexec->execute)
- return 11;
-
- BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Shift: 0x%02X, SrcMask: 0x%02X, "
- "Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X\n",
- offset, reg, shift, srcmask, crtcport, crtcindex, mask);
-
- data = bios_rd32(bios, reg);
-
- if (shift < 0x80)
- data >>= shift;
- else
- data <<= (0x100 - shift);
-
- data &= srcmask;
-
- crtcdata = bios_idxprt_rd(bios, crtcport, crtcindex) & mask;
- crtcdata |= (uint8_t)data;
- bios_idxprt_wr(bios, crtcport, crtcindex, crtcdata);
-
- return 11;
-}
-
-static int
-init_not(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_NOT opcode: 0x38 ('8')
- *
- * offset (8 bit): opcode
- *
- * Invert the current execute / no-execute condition (i.e. "else")
- */
- if (iexec->execute)
- BIOSLOG(bios, "0x%04X: ------ Skipping following commands ------\n", offset);
- else
- BIOSLOG(bios, "0x%04X: ------ Executing following commands ------\n", offset);
-
- iexec->execute = !iexec->execute;
- return 1;
-}
-
-static int
-init_io_flag_condition(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_IO_FLAG_CONDITION opcode: 0x39 ('9')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): condition number
- *
- * Check condition "condition number" in the IO flag condition table.
- * If condition not met skip subsequent opcodes until condition is
- * inverted (INIT_NOT), or we hit INIT_RESUME
- */
-
- uint8_t cond = bios->data[offset + 1];
-
- if (!iexec->execute)
- return 2;
-
- if (io_flag_condition_met(bios, offset, cond))
- BIOSLOG(bios, "0x%04X: Condition fulfilled -- continuing to execute\n", offset);
- else {
- BIOSLOG(bios, "0x%04X: Condition not fulfilled -- skipping following commands\n", offset);
- iexec->execute = false;
- }
-
- return 2;
-}
-
-static int
-init_dp_condition(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_DP_CONDITION opcode: 0x3A ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): "sub" opcode
- * offset + 2 (8 bit): unknown
- *
- */
-
- struct bit_displayport_encoder_table *dpe = NULL;
- struct dcb_entry *dcb = bios->display.output;
- struct drm_device *dev = bios->dev;
- uint8_t cond = bios->data[offset + 1];
- int dummy;
-
- BIOSLOG(bios, "0x%04X: subop 0x%02X\n", offset, cond);
-
- if (!iexec->execute)
- return 3;
-
- dpe = nouveau_bios_dp_table(dev, dcb, &dummy);
- if (!dpe) {
- NV_ERROR(dev, "0x%04X: INIT_3A: no encoder table!!\n", offset);
- return 3;
- }
-
- switch (cond) {
- case 0:
- {
- struct dcb_connector_table_entry *ent =
- &bios->dcb.connector.entry[dcb->connector];
-
- if (ent->type != DCB_CONNECTOR_eDP)
- iexec->execute = false;
- }
- break;
- case 1:
- case 2:
- if (!(dpe->unknown & cond))
- iexec->execute = false;
- break;
- case 5:
- {
- struct nouveau_i2c_chan *auxch;
- int ret;
-
- auxch = nouveau_i2c_find(dev, bios->display.output->i2c_index);
- if (!auxch) {
- NV_ERROR(dev, "0x%04X: couldn't get auxch\n", offset);
- return 3;
- }
-
- ret = nouveau_dp_auxch(auxch, 9, 0xd, &cond, 1);
- if (ret) {
- NV_ERROR(dev, "0x%04X: auxch rd fail: %d\n", offset, ret);
- return 3;
- }
-
- if (cond & 1)
- iexec->execute = false;
- }
- break;
- default:
- NV_WARN(dev, "0x%04X: unknown INIT_3A op: %d\n", offset, cond);
- break;
- }
-
- if (iexec->execute)
- BIOSLOG(bios, "0x%04X: continuing to execute\n", offset);
- else
- BIOSLOG(bios, "0x%04X: skipping following commands\n", offset);
-
- return 3;
-}
-
-static int
-init_op_3b(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_3B opcode: 0x3B ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): crtc index
- *
- */
-
- uint8_t or = ffs(bios->display.output->or) - 1;
- uint8_t index = bios->data[offset + 1];
- uint8_t data;
-
- if (!iexec->execute)
- return 2;
-
- data = bios_idxprt_rd(bios, 0x3d4, index);
- bios_idxprt_wr(bios, 0x3d4, index, data & ~(1 << or));
- return 2;
-}
-
-static int
-init_op_3c(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_3C opcode: 0x3C ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): crtc index
- *
- */
-
- uint8_t or = ffs(bios->display.output->or) - 1;
- uint8_t index = bios->data[offset + 1];
- uint8_t data;
-
- if (!iexec->execute)
- return 2;
-
- data = bios_idxprt_rd(bios, 0x3d4, index);
- bios_idxprt_wr(bios, 0x3d4, index, data | (1 << or));
- return 2;
-}
-
-static int
-init_idx_addr_latched(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_INDEX_ADDRESS_LATCHED opcode: 0x49 ('I')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): control register
- * offset + 5 (32 bit): data register
- * offset + 9 (32 bit): mask
- * offset + 13 (32 bit): data
- * offset + 17 (8 bit): count
- * offset + 18 (8 bit): address 1
- * offset + 19 (8 bit): data 1
- * ...
- *
- * For each of "count" address and data pairs, write "data n" to
- * "data register", read the current value of "control register",
- * and write it back once ANDed with "mask", ORed with "data",
- * and ORed with "address n"
- */
-
- uint32_t controlreg = ROM32(bios->data[offset + 1]);
- uint32_t datareg = ROM32(bios->data[offset + 5]);
- uint32_t mask = ROM32(bios->data[offset + 9]);
- uint32_t data = ROM32(bios->data[offset + 13]);
- uint8_t count = bios->data[offset + 17];
- int len = 18 + count * 2;
- uint32_t value;
- int i;
-
- if (!iexec->execute)
- return len;
-
- BIOSLOG(bios, "0x%04X: ControlReg: 0x%08X, DataReg: 0x%08X, "
- "Mask: 0x%08X, Data: 0x%08X, Count: 0x%02X\n",
- offset, controlreg, datareg, mask, data, count);
-
- for (i = 0; i < count; i++) {
- uint8_t instaddress = bios->data[offset + 18 + i * 2];
- uint8_t instdata = bios->data[offset + 19 + i * 2];
-
- BIOSLOG(bios, "0x%04X: Address: 0x%02X, Data: 0x%02X\n",
- offset, instaddress, instdata);
-
- bios_wr32(bios, datareg, instdata);
- value = bios_rd32(bios, controlreg) & mask;
- value |= data;
- value |= instaddress;
- bios_wr32(bios, controlreg, value);
- }
-
- return len;
-}
-
-static int
-init_io_restrict_pll2(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_IO_RESTRICT_PLL2 opcode: 0x4A ('J')
- *
- * offset (8 bit): opcode
- * offset + 1 (16 bit): CRTC port
- * offset + 3 (8 bit): CRTC index
- * offset + 4 (8 bit): mask
- * offset + 5 (8 bit): shift
- * offset + 6 (8 bit): count
- * offset + 7 (32 bit): register
- * offset + 11 (32 bit): frequency 1
- * ...
- *
- * Starting at offset + 11 there are "count" 32 bit frequencies (kHz).
- * Set PLL register "register" to coefficients for frequency n,
- * selected by reading index "CRTC index" of "CRTC port" ANDed with
- * "mask" and shifted right by "shift".
- */
-
- uint16_t crtcport = ROM16(bios->data[offset + 1]);
- uint8_t crtcindex = bios->data[offset + 3];
- uint8_t mask = bios->data[offset + 4];
- uint8_t shift = bios->data[offset + 5];
- uint8_t count = bios->data[offset + 6];
- uint32_t reg = ROM32(bios->data[offset + 7]);
- int len = 11 + count * 4;
- uint8_t config;
- uint32_t freq;
-
- if (!iexec->execute)
- return len;
-
- BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, "
- "Shift: 0x%02X, Count: 0x%02X, Reg: 0x%08X\n",
- offset, crtcport, crtcindex, mask, shift, count, reg);
-
- if (!reg)
- return len;
-
- config = (bios_idxprt_rd(bios, crtcport, crtcindex) & mask) >> shift;
- if (config > count) {
- NV_ERROR(bios->dev,
- "0x%04X: Config 0x%02X exceeds maximal bound 0x%02X\n",
- offset, config, count);
- return len;
- }
-
- freq = ROM32(bios->data[offset + 11 + config * 4]);
-
- BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Config: 0x%02X, Freq: %dkHz\n",
- offset, reg, config, freq);
-
- setPLL(bios, reg, freq);
-
- return len;
-}
-
-static int
-init_pll2(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_PLL2 opcode: 0x4B ('K')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): register
- * offset + 5 (32 bit): freq
- *
- * Set PLL register "register" to coefficients for frequency "freq"
- */
-
- uint32_t reg = ROM32(bios->data[offset + 1]);
- uint32_t freq = ROM32(bios->data[offset + 5]);
-
- if (!iexec->execute)
- return 9;
-
- BIOSLOG(bios, "0x%04X: Reg: 0x%04X, Freq: %dkHz\n",
- offset, reg, freq);
-
- setPLL(bios, reg, freq);
- return 9;
-}
-
-static int
-init_i2c_byte(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_I2C_BYTE opcode: 0x4C ('L')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): DCB I2C table entry index
- * offset + 2 (8 bit): I2C slave address
- * offset + 3 (8 bit): count
- * offset + 4 (8 bit): I2C register 1
- * offset + 5 (8 bit): mask 1
- * offset + 6 (8 bit): data 1
- * ...
- *
- * For each of "count" registers given by "I2C register n" on the device
- * addressed by "I2C slave address" on the I2C bus given by
- * "DCB I2C table entry index", read the register, AND the result with
- * "mask n" and OR it with "data n" before writing it back to the device
- */
-
- struct drm_device *dev = bios->dev;
- uint8_t i2c_index = bios->data[offset + 1];
- uint8_t i2c_address = bios->data[offset + 2] >> 1;
- uint8_t count = bios->data[offset + 3];
- struct nouveau_i2c_chan *chan;
- int len = 4 + count * 3;
- int ret, i;
-
- if (!iexec->execute)
- return len;
-
- BIOSLOG(bios, "0x%04X: DCBI2CIndex: 0x%02X, I2CAddress: 0x%02X, "
- "Count: 0x%02X\n",
- offset, i2c_index, i2c_address, count);
-
- chan = init_i2c_device_find(dev, i2c_index);
- if (!chan) {
- NV_ERROR(dev, "0x%04X: i2c bus not found\n", offset);
- return len;
- }
-
- for (i = 0; i < count; i++) {
- uint8_t reg = bios->data[offset + 4 + i * 3];
- uint8_t mask = bios->data[offset + 5 + i * 3];
- uint8_t data = bios->data[offset + 6 + i * 3];
- union i2c_smbus_data val;
-
- ret = i2c_smbus_xfer(&chan->adapter, i2c_address, 0,
- I2C_SMBUS_READ, reg,
- I2C_SMBUS_BYTE_DATA, &val);
- if (ret < 0) {
- NV_ERROR(dev, "0x%04X: i2c rd fail: %d\n", offset, ret);
- return len;
- }
-
- BIOSLOG(bios, "0x%04X: I2CReg: 0x%02X, Value: 0x%02X, "
- "Mask: 0x%02X, Data: 0x%02X\n",
- offset, reg, val.byte, mask, data);
-
- if (!bios->execute)
- continue;
-
- val.byte &= mask;
- val.byte |= data;
- ret = i2c_smbus_xfer(&chan->adapter, i2c_address, 0,
- I2C_SMBUS_WRITE, reg,
- I2C_SMBUS_BYTE_DATA, &val);
- if (ret < 0) {
- NV_ERROR(dev, "0x%04X: i2c wr fail: %d\n", offset, ret);
- return len;
- }
- }
-
- return len;
-}
-
-static int
-init_zm_i2c_byte(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_ZM_I2C_BYTE opcode: 0x4D ('M')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): DCB I2C table entry index
- * offset + 2 (8 bit): I2C slave address
- * offset + 3 (8 bit): count
- * offset + 4 (8 bit): I2C register 1
- * offset + 5 (8 bit): data 1
- * ...
- *
- * For each of "count" registers given by "I2C register n" on the device
- * addressed by "I2C slave address" on the I2C bus given by
- * "DCB I2C table entry index", set the register to "data n"
- */
-
- struct drm_device *dev = bios->dev;
- uint8_t i2c_index = bios->data[offset + 1];
- uint8_t i2c_address = bios->data[offset + 2] >> 1;
- uint8_t count = bios->data[offset + 3];
- struct nouveau_i2c_chan *chan;
- int len = 4 + count * 2;
- int ret, i;
-
- if (!iexec->execute)
- return len;
-
- BIOSLOG(bios, "0x%04X: DCBI2CIndex: 0x%02X, I2CAddress: 0x%02X, "
- "Count: 0x%02X\n",
- offset, i2c_index, i2c_address, count);
-
- chan = init_i2c_device_find(dev, i2c_index);
- if (!chan) {
- NV_ERROR(dev, "0x%04X: i2c bus not found\n", offset);
- return len;
- }
-
- for (i = 0; i < count; i++) {
- uint8_t reg = bios->data[offset + 4 + i * 2];
- union i2c_smbus_data val;
-
- val.byte = bios->data[offset + 5 + i * 2];
-
- BIOSLOG(bios, "0x%04X: I2CReg: 0x%02X, Data: 0x%02X\n",
- offset, reg, val.byte);
-
- if (!bios->execute)
- continue;
-
- ret = i2c_smbus_xfer(&chan->adapter, i2c_address, 0,
- I2C_SMBUS_WRITE, reg,
- I2C_SMBUS_BYTE_DATA, &val);
- if (ret < 0) {
- NV_ERROR(dev, "0x%04X: i2c wr fail: %d\n", offset, ret);
- return len;
- }
- }
-
- return len;
-}
-
-static int
-init_zm_i2c(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_ZM_I2C opcode: 0x4E ('N')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): DCB I2C table entry index
- * offset + 2 (8 bit): I2C slave address
- * offset + 3 (8 bit): count
- * offset + 4 (8 bit): data 1
- * ...
- *
- * Send "count" bytes ("data n") to the device addressed by "I2C slave
- * address" on the I2C bus given by "DCB I2C table entry index"
- */
-
- struct drm_device *dev = bios->dev;
- uint8_t i2c_index = bios->data[offset + 1];
- uint8_t i2c_address = bios->data[offset + 2] >> 1;
- uint8_t count = bios->data[offset + 3];
- int len = 4 + count;
- struct nouveau_i2c_chan *chan;
- struct i2c_msg msg;
- uint8_t data[256];
- int ret, i;
-
- if (!iexec->execute)
- return len;
-
- BIOSLOG(bios, "0x%04X: DCBI2CIndex: 0x%02X, I2CAddress: 0x%02X, "
- "Count: 0x%02X\n",
- offset, i2c_index, i2c_address, count);
-
- chan = init_i2c_device_find(dev, i2c_index);
- if (!chan) {
- NV_ERROR(dev, "0x%04X: i2c bus not found\n", offset);
- return len;
- }
-
- for (i = 0; i < count; i++) {
- data[i] = bios->data[offset + 4 + i];
-
- BIOSLOG(bios, "0x%04X: Data: 0x%02X\n", offset, data[i]);
- }
-
- if (bios->execute) {
- msg.addr = i2c_address;
- msg.flags = 0;
- msg.len = count;
- msg.buf = data;
- ret = i2c_transfer(&chan->adapter, &msg, 1);
- if (ret != 1) {
- NV_ERROR(dev, "0x%04X: i2c wr fail: %d\n", offset, ret);
- return len;
- }
- }
-
- return len;
-}
-
-static int
-init_tmds(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_TMDS opcode: 0x4F ('O') (non-canon name)
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): magic lookup value
- * offset + 2 (8 bit): TMDS address
- * offset + 3 (8 bit): mask
- * offset + 4 (8 bit): data
- *
- * Read the data reg for TMDS address "TMDS address", AND it with mask
- * and OR it with data, then write it back
- * "magic lookup value" determines which TMDS base address register is
- * used -- see get_tmds_index_reg()
- */
-
- struct drm_device *dev = bios->dev;
- uint8_t mlv = bios->data[offset + 1];
- uint32_t tmdsaddr = bios->data[offset + 2];
- uint8_t mask = bios->data[offset + 3];
- uint8_t data = bios->data[offset + 4];
- uint32_t reg, value;
-
- if (!iexec->execute)
- return 5;
-
- BIOSLOG(bios, "0x%04X: MagicLookupValue: 0x%02X, TMDSAddr: 0x%02X, "
- "Mask: 0x%02X, Data: 0x%02X\n",
- offset, mlv, tmdsaddr, mask, data);
-
- reg = get_tmds_index_reg(bios->dev, mlv);
- if (!reg) {
- NV_ERROR(dev, "0x%04X: no tmds_index_reg\n", offset);
- return 5;
- }
-
- bios_wr32(bios, reg,
- tmdsaddr | NV_PRAMDAC_FP_TMDS_CONTROL_WRITE_DISABLE);
- value = (bios_rd32(bios, reg + 4) & mask) | data;
- bios_wr32(bios, reg + 4, value);
- bios_wr32(bios, reg, tmdsaddr);
-
- return 5;
-}
-
-static int
-init_zm_tmds_group(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_ZM_TMDS_GROUP opcode: 0x50 ('P') (non-canon name)
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): magic lookup value
- * offset + 2 (8 bit): count
- * offset + 3 (8 bit): addr 1
- * offset + 4 (8 bit): data 1
- * ...
- *
- * For each of "count" TMDS address and data pairs write "data n" to
- * "addr n". "magic lookup value" determines which TMDS base address
- * register is used -- see get_tmds_index_reg()
- */
-
- struct drm_device *dev = bios->dev;
- uint8_t mlv = bios->data[offset + 1];
- uint8_t count = bios->data[offset + 2];
- int len = 3 + count * 2;
- uint32_t reg;
- int i;
-
- if (!iexec->execute)
- return len;
-
- BIOSLOG(bios, "0x%04X: MagicLookupValue: 0x%02X, Count: 0x%02X\n",
- offset, mlv, count);
-
- reg = get_tmds_index_reg(bios->dev, mlv);
- if (!reg) {
- NV_ERROR(dev, "0x%04X: no tmds_index_reg\n", offset);
- return len;
- }
-
- for (i = 0; i < count; i++) {
- uint8_t tmdsaddr = bios->data[offset + 3 + i * 2];
- uint8_t tmdsdata = bios->data[offset + 4 + i * 2];
-
- bios_wr32(bios, reg + 4, tmdsdata);
- bios_wr32(bios, reg, tmdsaddr);
- }
-
- return len;
-}
-
-static int
-init_cr_idx_adr_latch(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_CR_INDEX_ADDRESS_LATCHED opcode: 0x51 ('Q')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): CRTC index1
- * offset + 2 (8 bit): CRTC index2
- * offset + 3 (8 bit): baseaddr
- * offset + 4 (8 bit): count
- * offset + 5 (8 bit): data 1
- * ...
- *
- * For each of "count" address and data pairs, write "baseaddr + n" to
- * "CRTC index1" and "data n" to "CRTC index2"
- * Once complete, restore initial value read from "CRTC index1"
- */
- uint8_t crtcindex1 = bios->data[offset + 1];
- uint8_t crtcindex2 = bios->data[offset + 2];
- uint8_t baseaddr = bios->data[offset + 3];
- uint8_t count = bios->data[offset + 4];
- int len = 5 + count;
- uint8_t oldaddr, data;
- int i;
-
- if (!iexec->execute)
- return len;
-
- BIOSLOG(bios, "0x%04X: Index1: 0x%02X, Index2: 0x%02X, "
- "BaseAddr: 0x%02X, Count: 0x%02X\n",
- offset, crtcindex1, crtcindex2, baseaddr, count);
-
- oldaddr = bios_idxprt_rd(bios, NV_CIO_CRX__COLOR, crtcindex1);
-
- for (i = 0; i < count; i++) {
- bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex1,
- baseaddr + i);
- data = bios->data[offset + 5 + i];
- bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex2, data);
- }
-
- bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex1, oldaddr);
-
- return len;
-}
-
-static int
-init_cr(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_CR opcode: 0x52 ('R')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): CRTC index
- * offset + 2 (8 bit): mask
- * offset + 3 (8 bit): data
- *
- * Assign the value of at "CRTC index" ANDed with mask and ORed with
- * data back to "CRTC index"
- */
-
- uint8_t crtcindex = bios->data[offset + 1];
- uint8_t mask = bios->data[offset + 2];
- uint8_t data = bios->data[offset + 3];
- uint8_t value;
-
- if (!iexec->execute)
- return 4;
-
- BIOSLOG(bios, "0x%04X: Index: 0x%02X, Mask: 0x%02X, Data: 0x%02X\n",
- offset, crtcindex, mask, data);
-
- value = bios_idxprt_rd(bios, NV_CIO_CRX__COLOR, crtcindex) & mask;
- value |= data;
- bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex, value);
-
- return 4;
-}
-
-static int
-init_zm_cr(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_ZM_CR opcode: 0x53 ('S')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): CRTC index
- * offset + 2 (8 bit): value
- *
- * Assign "value" to CRTC register with index "CRTC index".
- */
-
- uint8_t crtcindex = ROM32(bios->data[offset + 1]);
- uint8_t data = bios->data[offset + 2];
-
- if (!iexec->execute)
- return 3;
-
- bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, crtcindex, data);
-
- return 3;
-}
-
-static int
-init_zm_cr_group(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_ZM_CR_GROUP opcode: 0x54 ('T')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): count
- * offset + 2 (8 bit): CRTC index 1
- * offset + 3 (8 bit): value 1
- * ...
- *
- * For "count", assign "value n" to CRTC register with index
- * "CRTC index n".
- */
-
- uint8_t count = bios->data[offset + 1];
- int len = 2 + count * 2;
- int i;
-
- if (!iexec->execute)
- return len;
-
- for (i = 0; i < count; i++)
- init_zm_cr(bios, offset + 2 + 2 * i - 1, iexec);
-
- return len;
-}
-
-static int
-init_condition_time(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_CONDITION_TIME opcode: 0x56 ('V')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): condition number
- * offset + 2 (8 bit): retries / 50
- *
- * Check condition "condition number" in the condition table.
- * Bios code then sleeps for 2ms if the condition is not met, and
- * repeats up to "retries" times, but on one C51 this has proved
- * insufficient. In mmiotraces the driver sleeps for 20ms, so we do
- * this, and bail after "retries" times, or 2s, whichever is less.
- * If still not met after retries, clear execution flag for this table.
- */
-
- uint8_t cond = bios->data[offset + 1];
- uint16_t retries = bios->data[offset + 2] * 50;
- unsigned cnt;
-
- if (!iexec->execute)
- return 3;
-
- if (retries > 100)
- retries = 100;
-
- BIOSLOG(bios, "0x%04X: Condition: 0x%02X, Retries: 0x%02X\n",
- offset, cond, retries);
-
- if (!bios->execute) /* avoid 2s delays when "faking" execution */
- retries = 1;
-
- for (cnt = 0; cnt < retries; cnt++) {
- if (bios_condition_met(bios, offset, cond)) {
- BIOSLOG(bios, "0x%04X: Condition met, continuing\n",
- offset);
- break;
- } else {
- BIOSLOG(bios, "0x%04X: "
- "Condition not met, sleeping for 20ms\n",
- offset);
- msleep(20);
- }
- }
-
- if (!bios_condition_met(bios, offset, cond)) {
- NV_WARN(bios->dev,
- "0x%04X: Condition still not met after %dms, "
- "skipping following opcodes\n", offset, 20 * retries);
- iexec->execute = false;
- }
-
- return 3;
-}
-
-static int
-init_ltime(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_LTIME opcode: 0x57 ('V')
- *
- * offset (8 bit): opcode
- * offset + 1 (16 bit): time
- *
- * Sleep for "time" miliseconds.
- */
-
- unsigned time = ROM16(bios->data[offset + 1]);
-
- if (!iexec->execute)
- return 3;
-
- BIOSLOG(bios, "0x%04X: Sleeping for 0x%04X miliseconds\n",
- offset, time);
-
- msleep(time);
-
- return 3;
-}
-
-static int
-init_zm_reg_sequence(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_ZM_REG_SEQUENCE opcode: 0x58 ('X')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): base register
- * offset + 5 (8 bit): count
- * offset + 6 (32 bit): value 1
- * ...
- *
- * Starting at offset + 6 there are "count" 32 bit values.
- * For "count" iterations set "base register" + 4 * current_iteration
- * to "value current_iteration"
- */
-
- uint32_t basereg = ROM32(bios->data[offset + 1]);
- uint32_t count = bios->data[offset + 5];
- int len = 6 + count * 4;
- int i;
-
- if (!iexec->execute)
- return len;
-
- BIOSLOG(bios, "0x%04X: BaseReg: 0x%08X, Count: 0x%02X\n",
- offset, basereg, count);
-
- for (i = 0; i < count; i++) {
- uint32_t reg = basereg + i * 4;
- uint32_t data = ROM32(bios->data[offset + 6 + i * 4]);
-
- bios_wr32(bios, reg, data);
- }
-
- return len;
-}
-
-static int
-init_sub_direct(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_SUB_DIRECT opcode: 0x5B ('[')
- *
- * offset (8 bit): opcode
- * offset + 1 (16 bit): subroutine offset (in bios)
- *
- * Calls a subroutine that will execute commands until INIT_DONE
- * is found.
- */
-
- uint16_t sub_offset = ROM16(bios->data[offset + 1]);
-
- if (!iexec->execute)
- return 3;
-
- BIOSLOG(bios, "0x%04X: Executing subroutine at 0x%04X\n",
- offset, sub_offset);
-
- parse_init_table(bios, sub_offset, iexec);
-
- BIOSLOG(bios, "0x%04X: End of 0x%04X subroutine\n", offset, sub_offset);
-
- return 3;
-}
-
-static int
-init_i2c_if(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_I2C_IF opcode: 0x5E ('^')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): DCB I2C table entry index
- * offset + 2 (8 bit): I2C slave address
- * offset + 3 (8 bit): I2C register
- * offset + 4 (8 bit): mask
- * offset + 5 (8 bit): data
- *
- * Read the register given by "I2C register" on the device addressed
- * by "I2C slave address" on the I2C bus given by "DCB I2C table
- * entry index". Compare the result AND "mask" to "data".
- * If they're not equal, skip subsequent opcodes until condition is
- * inverted (INIT_NOT), or we hit INIT_RESUME
- */
-
- uint8_t i2c_index = bios->data[offset + 1];
- uint8_t i2c_address = bios->data[offset + 2] >> 1;
- uint8_t reg = bios->data[offset + 3];
- uint8_t mask = bios->data[offset + 4];
- uint8_t data = bios->data[offset + 5];
- struct nouveau_i2c_chan *chan;
- union i2c_smbus_data val;
- int ret;
-
- /* no execute check by design */
-
- BIOSLOG(bios, "0x%04X: DCBI2CIndex: 0x%02X, I2CAddress: 0x%02X\n",
- offset, i2c_index, i2c_address);
-
- chan = init_i2c_device_find(bios->dev, i2c_index);
- if (!chan)
- return -ENODEV;
-
- ret = i2c_smbus_xfer(&chan->adapter, i2c_address, 0,
- I2C_SMBUS_READ, reg,
- I2C_SMBUS_BYTE_DATA, &val);
- if (ret < 0) {
- BIOSLOG(bios, "0x%04X: I2CReg: 0x%02X, Value: [no device], "
- "Mask: 0x%02X, Data: 0x%02X\n",
- offset, reg, mask, data);
- iexec->execute = 0;
- return 6;
- }
-
- BIOSLOG(bios, "0x%04X: I2CReg: 0x%02X, Value: 0x%02X, "
- "Mask: 0x%02X, Data: 0x%02X\n",
- offset, reg, val.byte, mask, data);
-
- iexec->execute = ((val.byte & mask) == data);
-
- return 6;
-}
-
-static int
-init_copy_nv_reg(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_COPY_NV_REG opcode: 0x5F ('_')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): src reg
- * offset + 5 (8 bit): shift
- * offset + 6 (32 bit): src mask
- * offset + 10 (32 bit): xor
- * offset + 14 (32 bit): dst reg
- * offset + 18 (32 bit): dst mask
- *
- * Shift REGVAL("src reg") right by (signed) "shift", AND result with
- * "src mask", then XOR with "xor". Write this OR'd with
- * (REGVAL("dst reg") AND'd with "dst mask") to "dst reg"
- */
-
- uint32_t srcreg = *((uint32_t *)(&bios->data[offset + 1]));
- uint8_t shift = bios->data[offset + 5];
- uint32_t srcmask = *((uint32_t *)(&bios->data[offset + 6]));
- uint32_t xor = *((uint32_t *)(&bios->data[offset + 10]));
- uint32_t dstreg = *((uint32_t *)(&bios->data[offset + 14]));
- uint32_t dstmask = *((uint32_t *)(&bios->data[offset + 18]));
- uint32_t srcvalue, dstvalue;
-
- if (!iexec->execute)
- return 22;
-
- BIOSLOG(bios, "0x%04X: SrcReg: 0x%08X, Shift: 0x%02X, SrcMask: 0x%08X, "
- "Xor: 0x%08X, DstReg: 0x%08X, DstMask: 0x%08X\n",
- offset, srcreg, shift, srcmask, xor, dstreg, dstmask);
-
- srcvalue = bios_rd32(bios, srcreg);
-
- if (shift < 0x80)
- srcvalue >>= shift;
- else
- srcvalue <<= (0x100 - shift);
-
- srcvalue = (srcvalue & srcmask) ^ xor;
-
- dstvalue = bios_rd32(bios, dstreg) & dstmask;
-
- bios_wr32(bios, dstreg, dstvalue | srcvalue);
-
- return 22;
-}
-
-static int
-init_zm_index_io(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_ZM_INDEX_IO opcode: 0x62 ('b')
- *
- * offset (8 bit): opcode
- * offset + 1 (16 bit): CRTC port
- * offset + 3 (8 bit): CRTC index
- * offset + 4 (8 bit): data
- *
- * Write "data" to index "CRTC index" of "CRTC port"
- */
- uint16_t crtcport = ROM16(bios->data[offset + 1]);
- uint8_t crtcindex = bios->data[offset + 3];
- uint8_t data = bios->data[offset + 4];
-
- if (!iexec->execute)
- return 5;
-
- bios_idxprt_wr(bios, crtcport, crtcindex, data);
-
- return 5;
-}
-
-static inline void
-bios_md32(struct nvbios *bios, uint32_t reg,
- uint32_t mask, uint32_t val)
-{
- bios_wr32(bios, reg, (bios_rd32(bios, reg) & ~mask) | val);
-}
-
-static uint32_t
-peek_fb(struct drm_device *dev, struct io_mapping *fb,
- uint32_t off)
-{
- uint32_t val = 0;
-
- if (off < pci_resource_len(dev->pdev, 1)) {
- uint8_t __iomem *p =
- io_mapping_map_atomic_wc(fb, off & PAGE_MASK, KM_USER0);
-
- val = ioread32(p + (off & ~PAGE_MASK));
-
- io_mapping_unmap_atomic(p, KM_USER0);
- }
-
- return val;
-}
-
-static void
-poke_fb(struct drm_device *dev, struct io_mapping *fb,
- uint32_t off, uint32_t val)
-{
- if (off < pci_resource_len(dev->pdev, 1)) {
- uint8_t __iomem *p =
- io_mapping_map_atomic_wc(fb, off & PAGE_MASK, KM_USER0);
-
- iowrite32(val, p + (off & ~PAGE_MASK));
- wmb();
-
- io_mapping_unmap_atomic(p, KM_USER0);
- }
-}
-
-static inline bool
-read_back_fb(struct drm_device *dev, struct io_mapping *fb,
- uint32_t off, uint32_t val)
-{
- poke_fb(dev, fb, off, val);
- return val == peek_fb(dev, fb, off);
-}
-
-static int
-nv04_init_compute_mem(struct nvbios *bios)
-{
- struct drm_device *dev = bios->dev;
- uint32_t patt = 0xdeadbeef;
- struct io_mapping *fb;
- int i;
-
- /* Map the framebuffer aperture */
- fb = io_mapping_create_wc(pci_resource_start(dev->pdev, 1),
- pci_resource_len(dev->pdev, 1));
- if (!fb)
- return -ENOMEM;
-
- /* Sequencer and refresh off */
- NVWriteVgaSeq(dev, 0, 1, NVReadVgaSeq(dev, 0, 1) | 0x20);
- bios_md32(bios, NV04_PFB_DEBUG_0, 0, NV04_PFB_DEBUG_0_REFRESH_OFF);
-
- bios_md32(bios, NV04_PFB_BOOT_0, ~0,
- NV04_PFB_BOOT_0_RAM_AMOUNT_16MB |
- NV04_PFB_BOOT_0_RAM_WIDTH_128 |
- NV04_PFB_BOOT_0_RAM_TYPE_SGRAM_16MBIT);
-
- for (i = 0; i < 4; i++)
- poke_fb(dev, fb, 4 * i, patt);
-
- poke_fb(dev, fb, 0x400000, patt + 1);
-
- if (peek_fb(dev, fb, 0) == patt + 1) {
- bios_md32(bios, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_TYPE,
- NV04_PFB_BOOT_0_RAM_TYPE_SDRAM_16MBIT);
- bios_md32(bios, NV04_PFB_DEBUG_0,
- NV04_PFB_DEBUG_0_REFRESH_OFF, 0);
-
- for (i = 0; i < 4; i++)
- poke_fb(dev, fb, 4 * i, patt);
-
- if ((peek_fb(dev, fb, 0xc) & 0xffff) != (patt & 0xffff))
- bios_md32(bios, NV04_PFB_BOOT_0,
- NV04_PFB_BOOT_0_RAM_WIDTH_128 |
- NV04_PFB_BOOT_0_RAM_AMOUNT,
- NV04_PFB_BOOT_0_RAM_AMOUNT_8MB);
-
- } else if ((peek_fb(dev, fb, 0xc) & 0xffff0000) !=
- (patt & 0xffff0000)) {
- bios_md32(bios, NV04_PFB_BOOT_0,
- NV04_PFB_BOOT_0_RAM_WIDTH_128 |
- NV04_PFB_BOOT_0_RAM_AMOUNT,
- NV04_PFB_BOOT_0_RAM_AMOUNT_4MB);
-
- } else if (peek_fb(dev, fb, 0) != patt) {
- if (read_back_fb(dev, fb, 0x800000, patt))
- bios_md32(bios, NV04_PFB_BOOT_0,
- NV04_PFB_BOOT_0_RAM_AMOUNT,
- NV04_PFB_BOOT_0_RAM_AMOUNT_8MB);
- else
- bios_md32(bios, NV04_PFB_BOOT_0,
- NV04_PFB_BOOT_0_RAM_AMOUNT,
- NV04_PFB_BOOT_0_RAM_AMOUNT_4MB);
-
- bios_md32(bios, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_TYPE,
- NV04_PFB_BOOT_0_RAM_TYPE_SGRAM_8MBIT);
-
- } else if (!read_back_fb(dev, fb, 0x800000, patt)) {
- bios_md32(bios, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT,
- NV04_PFB_BOOT_0_RAM_AMOUNT_8MB);
-
- }
-
- /* Refresh on, sequencer on */
- bios_md32(bios, NV04_PFB_DEBUG_0, NV04_PFB_DEBUG_0_REFRESH_OFF, 0);
- NVWriteVgaSeq(dev, 0, 1, NVReadVgaSeq(dev, 0, 1) & ~0x20);
-
- io_mapping_free(fb);
- return 0;
-}
-
-static const uint8_t *
-nv05_memory_config(struct nvbios *bios)
-{
- /* Defaults for BIOSes lacking a memory config table */
- static const uint8_t default_config_tab[][2] = {
- { 0x24, 0x00 },
- { 0x28, 0x00 },
- { 0x24, 0x01 },
- { 0x1f, 0x00 },
- { 0x0f, 0x00 },
- { 0x17, 0x00 },
- { 0x06, 0x00 },
- { 0x00, 0x00 }
- };
- int i = (bios_rd32(bios, NV_PEXTDEV_BOOT_0) &
- NV_PEXTDEV_BOOT_0_RAMCFG) >> 2;
-
- if (bios->legacy.mem_init_tbl_ptr)
- return &bios->data[bios->legacy.mem_init_tbl_ptr + 2 * i];
- else
- return default_config_tab[i];
-}
-
-static int
-nv05_init_compute_mem(struct nvbios *bios)
-{
- struct drm_device *dev = bios->dev;
- const uint8_t *ramcfg = nv05_memory_config(bios);
- uint32_t patt = 0xdeadbeef;
- struct io_mapping *fb;
- int i, v;
-
- /* Map the framebuffer aperture */
- fb = io_mapping_create_wc(pci_resource_start(dev->pdev, 1),
- pci_resource_len(dev->pdev, 1));
- if (!fb)
- return -ENOMEM;
-
- /* Sequencer off */
- NVWriteVgaSeq(dev, 0, 1, NVReadVgaSeq(dev, 0, 1) | 0x20);
-
- if (bios_rd32(bios, NV04_PFB_BOOT_0) & NV04_PFB_BOOT_0_UMA_ENABLE)
- goto out;
-
- bios_md32(bios, NV04_PFB_DEBUG_0, NV04_PFB_DEBUG_0_REFRESH_OFF, 0);
-
- /* If present load the hardcoded scrambling table */
- if (bios->legacy.mem_init_tbl_ptr) {
- uint32_t *scramble_tab = (uint32_t *)&bios->data[
- bios->legacy.mem_init_tbl_ptr + 0x10];
-
- for (i = 0; i < 8; i++)
- bios_wr32(bios, NV04_PFB_SCRAMBLE(i),
- ROM32(scramble_tab[i]));
- }
-
- /* Set memory type/width/length defaults depending on the straps */
- bios_md32(bios, NV04_PFB_BOOT_0, 0x3f, ramcfg[0]);
-
- if (ramcfg[1] & 0x80)
- bios_md32(bios, NV04_PFB_CFG0, 0, NV04_PFB_CFG0_SCRAMBLE);
-
- bios_md32(bios, NV04_PFB_CFG1, 0x700001, (ramcfg[1] & 1) << 20);
- bios_md32(bios, NV04_PFB_CFG1, 0, 1);
-
- /* Probe memory bus width */
- for (i = 0; i < 4; i++)
- poke_fb(dev, fb, 4 * i, patt);
-
- if (peek_fb(dev, fb, 0xc) != patt)
- bios_md32(bios, NV04_PFB_BOOT_0,
- NV04_PFB_BOOT_0_RAM_WIDTH_128, 0);
-
- /* Probe memory length */
- v = bios_rd32(bios, NV04_PFB_BOOT_0) & NV04_PFB_BOOT_0_RAM_AMOUNT;
-
- if (v == NV04_PFB_BOOT_0_RAM_AMOUNT_32MB &&
- (!read_back_fb(dev, fb, 0x1000000, ++patt) ||
- !read_back_fb(dev, fb, 0, ++patt)))
- bios_md32(bios, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT,
- NV04_PFB_BOOT_0_RAM_AMOUNT_16MB);
-
- if (v == NV04_PFB_BOOT_0_RAM_AMOUNT_16MB &&
- !read_back_fb(dev, fb, 0x800000, ++patt))
- bios_md32(bios, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT,
- NV04_PFB_BOOT_0_RAM_AMOUNT_8MB);
-
- if (!read_back_fb(dev, fb, 0x400000, ++patt))
- bios_md32(bios, NV04_PFB_BOOT_0, NV04_PFB_BOOT_0_RAM_AMOUNT,
- NV04_PFB_BOOT_0_RAM_AMOUNT_4MB);
-
-out:
- /* Sequencer on */
- NVWriteVgaSeq(dev, 0, 1, NVReadVgaSeq(dev, 0, 1) & ~0x20);
-
- io_mapping_free(fb);
- return 0;
-}
-
-static int
-nv10_init_compute_mem(struct nvbios *bios)
-{
- struct drm_device *dev = bios->dev;
- struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
- const int mem_width[] = { 0x10, 0x00, 0x20 };
- const int mem_width_count = (dev_priv->chipset >= 0x17 ? 3 : 2);
- uint32_t patt = 0xdeadbeef;
- struct io_mapping *fb;
- int i, j, k;
-
- /* Map the framebuffer aperture */
- fb = io_mapping_create_wc(pci_resource_start(dev->pdev, 1),
- pci_resource_len(dev->pdev, 1));
- if (!fb)
- return -ENOMEM;
-
- bios_wr32(bios, NV10_PFB_REFCTRL, NV10_PFB_REFCTRL_VALID_1);
-
- /* Probe memory bus width */
- for (i = 0; i < mem_width_count; i++) {
- bios_md32(bios, NV04_PFB_CFG0, 0x30, mem_width[i]);
-
- for (j = 0; j < 4; j++) {
- for (k = 0; k < 4; k++)
- poke_fb(dev, fb, 0x1c, 0);
-
- poke_fb(dev, fb, 0x1c, patt);
- poke_fb(dev, fb, 0x3c, 0);
-
- if (peek_fb(dev, fb, 0x1c) == patt)
- goto mem_width_found;
- }
- }
-
-mem_width_found:
- patt <<= 1;
-
- /* Probe amount of installed memory */
- for (i = 0; i < 4; i++) {
- int off = bios_rd32(bios, NV04_PFB_FIFO_DATA) - 0x100000;
-
- poke_fb(dev, fb, off, patt);
- poke_fb(dev, fb, 0, 0);
-
- peek_fb(dev, fb, 0);
- peek_fb(dev, fb, 0);
- peek_fb(dev, fb, 0);
- peek_fb(dev, fb, 0);
-
- if (peek_fb(dev, fb, off) == patt)
- goto amount_found;
- }
-
- /* IC missing - disable the upper half memory space. */
- bios_md32(bios, NV04_PFB_CFG0, 0x1000, 0);
-
-amount_found:
- io_mapping_free(fb);
- return 0;
-}
-
-static int
-nv20_init_compute_mem(struct nvbios *bios)
-{
- struct drm_device *dev = bios->dev;
- struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
- uint32_t mask = (dev_priv->chipset >= 0x25 ? 0x300 : 0x900);
- uint32_t amount, off;
- struct io_mapping *fb;
-
- /* Map the framebuffer aperture */
- fb = io_mapping_create_wc(pci_resource_start(dev->pdev, 1),
- pci_resource_len(dev->pdev, 1));
- if (!fb)
- return -ENOMEM;
-
- bios_wr32(bios, NV10_PFB_REFCTRL, NV10_PFB_REFCTRL_VALID_1);
-
- /* Allow full addressing */
- bios_md32(bios, NV04_PFB_CFG0, 0, mask);
-
- amount = bios_rd32(bios, NV04_PFB_FIFO_DATA);
- for (off = amount; off > 0x2000000; off -= 0x2000000)
- poke_fb(dev, fb, off - 4, off);
-
- amount = bios_rd32(bios, NV04_PFB_FIFO_DATA);
- if (amount != peek_fb(dev, fb, amount - 4))
- /* IC missing - disable the upper half memory space. */
- bios_md32(bios, NV04_PFB_CFG0, mask, 0);
-
- io_mapping_free(fb);
- return 0;
-}
-
-static int
-init_compute_mem(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_COMPUTE_MEM opcode: 0x63 ('c')
- *
- * offset (8 bit): opcode
- *
- * This opcode is meant to set the PFB memory config registers
- * appropriately so that we can correctly calculate how much VRAM it
- * has (on nv10 and better chipsets the amount of installed VRAM is
- * subsequently reported in NV_PFB_CSTATUS (0x10020C)).
- *
- * The implementation of this opcode in general consists of several
- * parts:
- *
- * 1) Determination of memory type and density. Only necessary for
- * really old chipsets, the memory type reported by the strap bits
- * (0x101000) is assumed to be accurate on nv05 and newer.
- *
- * 2) Determination of the memory bus width. Usually done by a cunning
- * combination of writes to offsets 0x1c and 0x3c in the fb, and
- * seeing whether the written values are read back correctly.
- *
- * Only necessary on nv0x-nv1x and nv34, on the other cards we can
- * trust the straps.
- *
- * 3) Determination of how many of the card's RAM pads have ICs
- * attached, usually done by a cunning combination of writes to an
- * offset slightly less than the maximum memory reported by
- * NV_PFB_CSTATUS, then seeing if the test pattern can be read back.
- *
- * This appears to be a NOP on IGPs and NV4x or newer chipsets, both io
- * logs of the VBIOS and kmmio traces of the binary driver POSTing the
- * card show nothing being done for this opcode. Why is it still listed
- * in the table?!
- */
-
- /* no iexec->execute check by design */
-
- struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
- int ret;
-
- if (dev_priv->chipset >= 0x40 ||
- dev_priv->chipset == 0x1a ||
- dev_priv->chipset == 0x1f)
- ret = 0;
- else if (dev_priv->chipset >= 0x20 &&
- dev_priv->chipset != 0x34)
- ret = nv20_init_compute_mem(bios);
- else if (dev_priv->chipset >= 0x10)
- ret = nv10_init_compute_mem(bios);
- else if (dev_priv->chipset >= 0x5)
- ret = nv05_init_compute_mem(bios);
- else
- ret = nv04_init_compute_mem(bios);
-
- if (ret)
- return ret;
-
- return 1;
-}
-
-static int
-init_reset(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_RESET opcode: 0x65 ('e')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): register
- * offset + 5 (32 bit): value1
- * offset + 9 (32 bit): value2
- *
- * Assign "value1" to "register", then assign "value2" to "register"
- */
-
- uint32_t reg = ROM32(bios->data[offset + 1]);
- uint32_t value1 = ROM32(bios->data[offset + 5]);
- uint32_t value2 = ROM32(bios->data[offset + 9]);
- uint32_t pci_nv_19, pci_nv_20;
-
- /* no iexec->execute check by design */
-
- pci_nv_19 = bios_rd32(bios, NV_PBUS_PCI_NV_19);
- bios_wr32(bios, NV_PBUS_PCI_NV_19, pci_nv_19 & ~0xf00);
-
- bios_wr32(bios, reg, value1);
-
- udelay(10);
-
- bios_wr32(bios, reg, value2);
- bios_wr32(bios, NV_PBUS_PCI_NV_19, pci_nv_19);
-
- pci_nv_20 = bios_rd32(bios, NV_PBUS_PCI_NV_20);
- pci_nv_20 &= ~NV_PBUS_PCI_NV_20_ROM_SHADOW_ENABLED; /* 0xfffffffe */
- bios_wr32(bios, NV_PBUS_PCI_NV_20, pci_nv_20);
-
- return 13;
-}
-
-static int
-init_configure_mem(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_CONFIGURE_MEM opcode: 0x66 ('f')
- *
- * offset (8 bit): opcode
- *
- * Equivalent to INIT_DONE on bios version 3 or greater.
- * For early bios versions, sets up the memory registers, using values
- * taken from the memory init table
- */
-
- /* no iexec->execute check by design */
-
- uint16_t meminitoffs = bios->legacy.mem_init_tbl_ptr + MEM_INIT_SIZE * (bios_idxprt_rd(bios, NV_CIO_CRX__COLOR, NV_CIO_CRE_SCRATCH4__INDEX) >> 4);
- uint16_t seqtbloffs = bios->legacy.sdr_seq_tbl_ptr, meminitdata = meminitoffs + 6;
- uint32_t reg, data;
-
- if (bios->major_version > 2)
- return 0;
-
- bios_idxprt_wr(bios, NV_VIO_SRX, NV_VIO_SR_CLOCK_INDEX, bios_idxprt_rd(
- bios, NV_VIO_SRX, NV_VIO_SR_CLOCK_INDEX) | 0x20);
-
- if (bios->data[meminitoffs] & 1)
- seqtbloffs = bios->legacy.ddr_seq_tbl_ptr;
-
- for (reg = ROM32(bios->data[seqtbloffs]);
- reg != 0xffffffff;
- reg = ROM32(bios->data[seqtbloffs += 4])) {
-
- switch (reg) {
- case NV04_PFB_PRE:
- data = NV04_PFB_PRE_CMD_PRECHARGE;
- break;
- case NV04_PFB_PAD:
- data = NV04_PFB_PAD_CKE_NORMAL;
- break;
- case NV04_PFB_REF:
- data = NV04_PFB_REF_CMD_REFRESH;
- break;
- default:
- data = ROM32(bios->data[meminitdata]);
- meminitdata += 4;
- if (data == 0xffffffff)
- continue;
- }
-
- bios_wr32(bios, reg, data);
- }
-
- return 1;
-}
-
-static int
-init_configure_clk(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_CONFIGURE_CLK opcode: 0x67 ('g')
- *
- * offset (8 bit): opcode
- *
- * Equivalent to INIT_DONE on bios version 3 or greater.
- * For early bios versions, sets up the NVClk and MClk PLLs, using
- * values taken from the memory init table
- */
-
- /* no iexec->execute check by design */
-
- uint16_t meminitoffs = bios->legacy.mem_init_tbl_ptr + MEM_INIT_SIZE * (bios_idxprt_rd(bios, NV_CIO_CRX__COLOR, NV_CIO_CRE_SCRATCH4__INDEX) >> 4);
- int clock;
-
- if (bios->major_version > 2)
- return 0;
-
- clock = ROM16(bios->data[meminitoffs + 4]) * 10;
- setPLL(bios, NV_PRAMDAC_NVPLL_COEFF, clock);
-
- clock = ROM16(bios->data[meminitoffs + 2]) * 10;
- if (bios->data[meminitoffs] & 1) /* DDR */
- clock *= 2;
- setPLL(bios, NV_PRAMDAC_MPLL_COEFF, clock);
-
- return 1;
-}
-
-static int
-init_configure_preinit(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_CONFIGURE_PREINIT opcode: 0x68 ('h')
- *
- * offset (8 bit): opcode
- *
- * Equivalent to INIT_DONE on bios version 3 or greater.
- * For early bios versions, does early init, loading ram and crystal
- * configuration from straps into CR3C
- */
-
- /* no iexec->execute check by design */
-
- uint32_t straps = bios_rd32(bios, NV_PEXTDEV_BOOT_0);
- uint8_t cr3c = ((straps << 2) & 0xf0) | (straps & 0x40) >> 6;
-
- if (bios->major_version > 2)
- return 0;
-
- bios_idxprt_wr(bios, NV_CIO_CRX__COLOR,
- NV_CIO_CRE_SCRATCH4__INDEX, cr3c);
-
- return 1;
-}
-
-static int
-init_io(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_IO opcode: 0x69 ('i')
- *
- * offset (8 bit): opcode
- * offset + 1 (16 bit): CRTC port
- * offset + 3 (8 bit): mask
- * offset + 4 (8 bit): data
- *
- * Assign ((IOVAL("crtc port") & "mask") | "data") to "crtc port"
- */
-
- struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
- uint16_t crtcport = ROM16(bios->data[offset + 1]);
- uint8_t mask = bios->data[offset + 3];
- uint8_t data = bios->data[offset + 4];
-
- if (!iexec->execute)
- return 5;
-
- BIOSLOG(bios, "0x%04X: Port: 0x%04X, Mask: 0x%02X, Data: 0x%02X\n",
- offset, crtcport, mask, data);
-
- /*
- * I have no idea what this does, but NVIDIA do this magic sequence
- * in the places where this INIT_IO happens..
- */
- if (dev_priv->card_type >= NV_50 && crtcport == 0x3c3 && data == 1) {
- int i;
-
- bios_wr32(bios, 0x614100, (bios_rd32(
- bios, 0x614100) & 0x0fffffff) | 0x00800000);
-
- bios_wr32(bios, 0x00e18c, bios_rd32(
- bios, 0x00e18c) | 0x00020000);
-
- bios_wr32(bios, 0x614900, (bios_rd32(
- bios, 0x614900) & 0x0fffffff) | 0x00800000);
-
- bios_wr32(bios, 0x000200, bios_rd32(
- bios, 0x000200) & ~0x40000000);
-
- mdelay(10);
-
- bios_wr32(bios, 0x00e18c, bios_rd32(
- bios, 0x00e18c) & ~0x00020000);
-
- bios_wr32(bios, 0x000200, bios_rd32(
- bios, 0x000200) | 0x40000000);
-
- bios_wr32(bios, 0x614100, 0x00800018);
- bios_wr32(bios, 0x614900, 0x00800018);
-
- mdelay(10);
-
- bios_wr32(bios, 0x614100, 0x10000018);
- bios_wr32(bios, 0x614900, 0x10000018);
-
- for (i = 0; i < 3; i++)
- bios_wr32(bios, 0x614280 + (i*0x800), bios_rd32(
- bios, 0x614280 + (i*0x800)) & 0xf0f0f0f0);
-
- for (i = 0; i < 2; i++)
- bios_wr32(bios, 0x614300 + (i*0x800), bios_rd32(
- bios, 0x614300 + (i*0x800)) & 0xfffff0f0);
-
- for (i = 0; i < 3; i++)
- bios_wr32(bios, 0x614380 + (i*0x800), bios_rd32(
- bios, 0x614380 + (i*0x800)) & 0xfffff0f0);
-
- for (i = 0; i < 2; i++)
- bios_wr32(bios, 0x614200 + (i*0x800), bios_rd32(
- bios, 0x614200 + (i*0x800)) & 0xfffffff0);
-
- for (i = 0; i < 2; i++)
- bios_wr32(bios, 0x614108 + (i*0x800), bios_rd32(
- bios, 0x614108 + (i*0x800)) & 0x0fffffff);
- return 5;
- }
-
- bios_port_wr(bios, crtcport, (bios_port_rd(bios, crtcport) & mask) |
- data);
- return 5;
-}
-
-static int
-init_sub(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_SUB opcode: 0x6B ('k')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): script number
- *
- * Execute script number "script number", as a subroutine
- */
-
- uint8_t sub = bios->data[offset + 1];
-
- if (!iexec->execute)
- return 2;
-
- BIOSLOG(bios, "0x%04X: Calling script %d\n", offset, sub);
-
- parse_init_table(bios,
- ROM16(bios->data[bios->init_script_tbls_ptr + sub * 2]),
- iexec);
-
- BIOSLOG(bios, "0x%04X: End of script %d\n", offset, sub);
-
- return 2;
-}
-
-static int
-init_ram_condition(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_RAM_CONDITION opcode: 0x6D ('m')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): mask
- * offset + 2 (8 bit): cmpval
- *
- * Test if (NV04_PFB_BOOT_0 & "mask") equals "cmpval".
- * If condition not met skip subsequent opcodes until condition is
- * inverted (INIT_NOT), or we hit INIT_RESUME
- */
-
- uint8_t mask = bios->data[offset + 1];
- uint8_t cmpval = bios->data[offset + 2];
- uint8_t data;
-
- if (!iexec->execute)
- return 3;
-
- data = bios_rd32(bios, NV04_PFB_BOOT_0) & mask;
-
- BIOSLOG(bios, "0x%04X: Checking if 0x%08X equals 0x%08X\n",
- offset, data, cmpval);
-
- if (data == cmpval)
- BIOSLOG(bios, "0x%04X: Condition fulfilled -- continuing to execute\n", offset);
- else {
- BIOSLOG(bios, "0x%04X: Condition not fulfilled -- skipping following commands\n", offset);
- iexec->execute = false;
- }
-
- return 3;
-}
-
-static int
-init_nv_reg(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_NV_REG opcode: 0x6E ('n')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): register
- * offset + 5 (32 bit): mask
- * offset + 9 (32 bit): data
- *
- * Assign ((REGVAL("register") & "mask") | "data") to "register"
- */
-
- uint32_t reg = ROM32(bios->data[offset + 1]);
- uint32_t mask = ROM32(bios->data[offset + 5]);
- uint32_t data = ROM32(bios->data[offset + 9]);
-
- if (!iexec->execute)
- return 13;
-
- BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Mask: 0x%08X, Data: 0x%08X\n",
- offset, reg, mask, data);
-
- bios_wr32(bios, reg, (bios_rd32(bios, reg) & mask) | data);
-
- return 13;
-}
-
-static int
-init_macro(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_MACRO opcode: 0x6F ('o')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): macro number
- *
- * Look up macro index "macro number" in the macro index table.
- * The macro index table entry has 1 byte for the index in the macro
- * table, and 1 byte for the number of times to repeat the macro.
- * The macro table entry has 4 bytes for the register address and
- * 4 bytes for the value to write to that register
- */
-
- uint8_t macro_index_tbl_idx = bios->data[offset + 1];
- uint16_t tmp = bios->macro_index_tbl_ptr + (macro_index_tbl_idx * MACRO_INDEX_SIZE);
- uint8_t macro_tbl_idx = bios->data[tmp];
- uint8_t count = bios->data[tmp + 1];
- uint32_t reg, data;
- int i;
-
- if (!iexec->execute)
- return 2;
-
- BIOSLOG(bios, "0x%04X: Macro: 0x%02X, MacroTableIndex: 0x%02X, "
- "Count: 0x%02X\n",
- offset, macro_index_tbl_idx, macro_tbl_idx, count);
-
- for (i = 0; i < count; i++) {
- uint16_t macroentryptr = bios->macro_tbl_ptr + (macro_tbl_idx + i) * MACRO_SIZE;
-
- reg = ROM32(bios->data[macroentryptr]);
- data = ROM32(bios->data[macroentryptr + 4]);
-
- bios_wr32(bios, reg, data);
- }
-
- return 2;
-}
-
-static int
-init_done(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_DONE opcode: 0x71 ('q')
- *
- * offset (8 bit): opcode
- *
- * End the current script
- */
-
- /* mild retval abuse to stop parsing this table */
- return 0;
-}
-
-static int
-init_resume(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_RESUME opcode: 0x72 ('r')
- *
- * offset (8 bit): opcode
- *
- * End the current execute / no-execute condition
- */
-
- if (iexec->execute)
- return 1;
-
- iexec->execute = true;
- BIOSLOG(bios, "0x%04X: ---- Executing following commands ----\n", offset);
-
- return 1;
-}
-
-static int
-init_time(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_TIME opcode: 0x74 ('t')
- *
- * offset (8 bit): opcode
- * offset + 1 (16 bit): time
- *
- * Sleep for "time" microseconds.
- */
-
- unsigned time = ROM16(bios->data[offset + 1]);
-
- if (!iexec->execute)
- return 3;
-
- BIOSLOG(bios, "0x%04X: Sleeping for 0x%04X microseconds\n",
- offset, time);
-
- if (time < 1000)
- udelay(time);
- else
- msleep((time + 900) / 1000);
-
- return 3;
-}
-
-static int
-init_condition(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_CONDITION opcode: 0x75 ('u')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): condition number
- *
- * Check condition "condition number" in the condition table.
- * If condition not met skip subsequent opcodes until condition is
- * inverted (INIT_NOT), or we hit INIT_RESUME
- */
-
- uint8_t cond = bios->data[offset + 1];
-
- if (!iexec->execute)
- return 2;
-
- BIOSLOG(bios, "0x%04X: Condition: 0x%02X\n", offset, cond);
-
- if (bios_condition_met(bios, offset, cond))
- BIOSLOG(bios, "0x%04X: Condition fulfilled -- continuing to execute\n", offset);
- else {
- BIOSLOG(bios, "0x%04X: Condition not fulfilled -- skipping following commands\n", offset);
- iexec->execute = false;
- }
-
- return 2;
-}
-
-static int
-init_io_condition(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_IO_CONDITION opcode: 0x76
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): condition number
- *
- * Check condition "condition number" in the io condition table.
- * If condition not met skip subsequent opcodes until condition is
- * inverted (INIT_NOT), or we hit INIT_RESUME
- */
-
- uint8_t cond = bios->data[offset + 1];
-
- if (!iexec->execute)
- return 2;
-
- BIOSLOG(bios, "0x%04X: IO condition: 0x%02X\n", offset, cond);
-
- if (io_condition_met(bios, offset, cond))
- BIOSLOG(bios, "0x%04X: Condition fulfilled -- continuing to execute\n", offset);
- else {
- BIOSLOG(bios, "0x%04X: Condition not fulfilled -- skipping following commands\n", offset);
- iexec->execute = false;
- }
-
- return 2;
-}
-
-static int
-init_index_io(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_INDEX_IO opcode: 0x78 ('x')
- *
- * offset (8 bit): opcode
- * offset + 1 (16 bit): CRTC port
- * offset + 3 (8 bit): CRTC index
- * offset + 4 (8 bit): mask
- * offset + 5 (8 bit): data
- *
- * Read value at index "CRTC index" on "CRTC port", AND with "mask",
- * OR with "data", write-back
- */
-
- uint16_t crtcport = ROM16(bios->data[offset + 1]);
- uint8_t crtcindex = bios->data[offset + 3];
- uint8_t mask = bios->data[offset + 4];
- uint8_t data = bios->data[offset + 5];
- uint8_t value;
-
- if (!iexec->execute)
- return 6;
-
- BIOSLOG(bios, "0x%04X: Port: 0x%04X, Index: 0x%02X, Mask: 0x%02X, "
- "Data: 0x%02X\n",
- offset, crtcport, crtcindex, mask, data);
-
- value = (bios_idxprt_rd(bios, crtcport, crtcindex) & mask) | data;
- bios_idxprt_wr(bios, crtcport, crtcindex, value);
-
- return 6;
-}
-
-static int
-init_pll(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_PLL opcode: 0x79 ('y')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): register
- * offset + 5 (16 bit): freq
- *
- * Set PLL register "register" to coefficients for frequency (10kHz)
- * "freq"
- */
-
- uint32_t reg = ROM32(bios->data[offset + 1]);
- uint16_t freq = ROM16(bios->data[offset + 5]);
-
- if (!iexec->execute)
- return 7;
-
- BIOSLOG(bios, "0x%04X: Reg: 0x%08X, Freq: %d0kHz\n", offset, reg, freq);
-
- setPLL(bios, reg, freq * 10);
-
- return 7;
-}
-
-static int
-init_zm_reg(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_ZM_REG opcode: 0x7A ('z')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): register
- * offset + 5 (32 bit): value
- *
- * Assign "value" to "register"
- */
-
- uint32_t reg = ROM32(bios->data[offset + 1]);
- uint32_t value = ROM32(bios->data[offset + 5]);
-
- if (!iexec->execute)
- return 9;
-
- if (reg == 0x000200)
- value |= 1;
-
- bios_wr32(bios, reg, value);
-
- return 9;
-}
-
-static int
-init_ram_restrict_pll(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_RAM_RESTRICT_PLL opcode: 0x87 ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): PLL type
- * offset + 2 (32 bit): frequency 0
- *
- * Uses the RAMCFG strap of PEXTDEV_BOOT as an index into the table at
- * ram_restrict_table_ptr. The value read from there is used to select
- * a frequency from the table starting at 'frequency 0' to be
- * programmed into the PLL corresponding to 'type'.
- *
- * The PLL limits table on cards using this opcode has a mapping of
- * 'type' to the relevant registers.
- */
-
- struct drm_device *dev = bios->dev;
- uint32_t strap = (bios_rd32(bios, NV_PEXTDEV_BOOT_0) & 0x0000003c) >> 2;
- uint8_t index = bios->data[bios->ram_restrict_tbl_ptr + strap];
- uint8_t type = bios->data[offset + 1];
- uint32_t freq = ROM32(bios->data[offset + 2 + (index * 4)]);
- uint8_t *pll_limits = &bios->data[bios->pll_limit_tbl_ptr], *entry;
- int len = 2 + bios->ram_restrict_group_count * 4;
- int i;
-
- if (!iexec->execute)
- return len;
-
- if (!bios->pll_limit_tbl_ptr || (pll_limits[0] & 0xf0) != 0x30) {
- NV_ERROR(dev, "PLL limits table not version 3.x\n");
- return len; /* deliberate, allow default clocks to remain */
- }
-
- entry = pll_limits + pll_limits[1];
- for (i = 0; i < pll_limits[3]; i++, entry += pll_limits[2]) {
- if (entry[0] == type) {
- uint32_t reg = ROM32(entry[3]);
-
- BIOSLOG(bios, "0x%04X: "
- "Type %02x Reg 0x%08x Freq %dKHz\n",
- offset, type, reg, freq);
-
- setPLL(bios, reg, freq);
- return len;
- }
- }
-
- NV_ERROR(dev, "PLL type 0x%02x not found in PLL limits table", type);
- return len;
-}
-
-static int
-init_8c(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_8C opcode: 0x8C ('')
- *
- * NOP so far....
- *
- */
-
- return 1;
-}
-
-static int
-init_8d(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_8D opcode: 0x8D ('')
- *
- * NOP so far....
- *
- */
-
- return 1;
-}
-
-static int
-init_gpio(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_GPIO opcode: 0x8E ('')
- *
- * offset (8 bit): opcode
- *
- * Loop over all entries in the DCB GPIO table, and initialise
- * each GPIO according to various values listed in each entry
- */
-
- struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
- struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
- const uint32_t nv50_gpio_ctl[2] = { 0xe100, 0xe28c };
- int i;
-
- if (dev_priv->card_type < NV_50) {
- NV_ERROR(bios->dev, "INIT_GPIO on unsupported chipset\n");
- return 1;
- }
-
- if (!iexec->execute)
- return 1;
-
- for (i = 0; i < bios->dcb.gpio.entries; i++) {
- struct dcb_gpio_entry *gpio = &bios->dcb.gpio.entry[i];
- uint32_t r, s, v;
-
- BIOSLOG(bios, "0x%04X: Entry: 0x%08X\n", offset, gpio->entry);
-
- BIOSLOG(bios, "0x%04X: set gpio 0x%02x, state %d\n",
- offset, gpio->tag, gpio->state_default);
- if (bios->execute)
- pgpio->set(bios->dev, gpio->tag, gpio->state_default);
-
- /* The NVIDIA binary driver doesn't appear to actually do
- * any of this, my VBIOS does however.
- */
- /* Not a clue, needs de-magicing */
- r = nv50_gpio_ctl[gpio->line >> 4];
- s = (gpio->line & 0x0f);
- v = bios_rd32(bios, r) & ~(0x00010001 << s);
- switch ((gpio->entry & 0x06000000) >> 25) {
- case 1:
- v |= (0x00000001 << s);
- break;
- case 2:
- v |= (0x00010000 << s);
- break;
- default:
- break;
- }
- bios_wr32(bios, r, v);
- }
-
- return 1;
-}
-
-static int
-init_ram_restrict_zm_reg_group(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_RAM_RESTRICT_ZM_REG_GROUP opcode: 0x8F ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): reg
- * offset + 5 (8 bit): regincrement
- * offset + 6 (8 bit): count
- * offset + 7 (32 bit): value 1,1
- * ...
- *
- * Use the RAMCFG strap of PEXTDEV_BOOT as an index into the table at
- * ram_restrict_table_ptr. The value read from here is 'n', and
- * "value 1,n" gets written to "reg". This repeats "count" times and on
- * each iteration 'm', "reg" increases by "regincrement" and
- * "value m,n" is used. The extent of n is limited by a number read
- * from the 'M' BIT table, herein called "blocklen"
- */
-
- uint32_t reg = ROM32(bios->data[offset + 1]);
- uint8_t regincrement = bios->data[offset + 5];
- uint8_t count = bios->data[offset + 6];
- uint32_t strap_ramcfg, data;
- /* previously set by 'M' BIT table */
- uint16_t blocklen = bios->ram_restrict_group_count * 4;
- int len = 7 + count * blocklen;
- uint8_t index;
- int i;
-
- /* critical! to know the length of the opcode */;
- if (!blocklen) {
- NV_ERROR(bios->dev,
- "0x%04X: Zero block length - has the M table "
- "been parsed?\n", offset);
- return -EINVAL;
- }
-
- if (!iexec->execute)
- return len;
-
- strap_ramcfg = (bios_rd32(bios, NV_PEXTDEV_BOOT_0) >> 2) & 0xf;
- index = bios->data[bios->ram_restrict_tbl_ptr + strap_ramcfg];
-
- BIOSLOG(bios, "0x%04X: Reg: 0x%08X, RegIncrement: 0x%02X, "
- "Count: 0x%02X, StrapRamCfg: 0x%02X, Index: 0x%02X\n",
- offset, reg, regincrement, count, strap_ramcfg, index);
-
- for (i = 0; i < count; i++) {
- data = ROM32(bios->data[offset + 7 + index * 4 + blocklen * i]);
-
- bios_wr32(bios, reg, data);
-
- reg += regincrement;
- }
-
- return len;
-}
-
-static int
-init_copy_zm_reg(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_COPY_ZM_REG opcode: 0x90 ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): src reg
- * offset + 5 (32 bit): dst reg
- *
- * Put contents of "src reg" into "dst reg"
- */
-
- uint32_t srcreg = ROM32(bios->data[offset + 1]);
- uint32_t dstreg = ROM32(bios->data[offset + 5]);
-
- if (!iexec->execute)
- return 9;
-
- bios_wr32(bios, dstreg, bios_rd32(bios, srcreg));
-
- return 9;
-}
-
-static int
-init_zm_reg_group_addr_latched(struct nvbios *bios, uint16_t offset,
- struct init_exec *iexec)
-{
- /*
- * INIT_ZM_REG_GROUP_ADDRESS_LATCHED opcode: 0x91 ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): dst reg
- * offset + 5 (8 bit): count
- * offset + 6 (32 bit): data 1
- * ...
- *
- * For each of "count" values write "data n" to "dst reg"
- */
-
- uint32_t reg = ROM32(bios->data[offset + 1]);
- uint8_t count = bios->data[offset + 5];
- int len = 6 + count * 4;
- int i;
-
- if (!iexec->execute)
- return len;
-
- for (i = 0; i < count; i++) {
- uint32_t data = ROM32(bios->data[offset + 6 + 4 * i]);
- bios_wr32(bios, reg, data);
- }
-
- return len;
-}
-
-static int
-init_reserved(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_RESERVED opcode: 0x92 ('')
- *
- * offset (8 bit): opcode
- *
- * Seemingly does nothing
- */
-
- return 1;
-}
-
-static int
-init_96(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_96 opcode: 0x96 ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): sreg
- * offset + 5 (8 bit): sshift
- * offset + 6 (8 bit): smask
- * offset + 7 (8 bit): index
- * offset + 8 (32 bit): reg
- * offset + 12 (32 bit): mask
- * offset + 16 (8 bit): shift
- *
- */
-
- uint16_t xlatptr = bios->init96_tbl_ptr + (bios->data[offset + 7] * 2);
- uint32_t reg = ROM32(bios->data[offset + 8]);
- uint32_t mask = ROM32(bios->data[offset + 12]);
- uint32_t val;
-
- val = bios_rd32(bios, ROM32(bios->data[offset + 1]));
- if (bios->data[offset + 5] < 0x80)
- val >>= bios->data[offset + 5];
- else
- val <<= (0x100 - bios->data[offset + 5]);
- val &= bios->data[offset + 6];
-
- val = bios->data[ROM16(bios->data[xlatptr]) + val];
- val <<= bios->data[offset + 16];
-
- if (!iexec->execute)
- return 17;
-
- bios_wr32(bios, reg, (bios_rd32(bios, reg) & mask) | val);
- return 17;
-}
-
-static int
-init_97(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_97 opcode: 0x97 ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): register
- * offset + 5 (32 bit): mask
- * offset + 9 (32 bit): value
- *
- * Adds "value" to "register" preserving the fields specified
- * by "mask"
- */
-
- uint32_t reg = ROM32(bios->data[offset + 1]);
- uint32_t mask = ROM32(bios->data[offset + 5]);
- uint32_t add = ROM32(bios->data[offset + 9]);
- uint32_t val;
-
- val = bios_rd32(bios, reg);
- val = (val & mask) | ((val + add) & ~mask);
-
- if (!iexec->execute)
- return 13;
-
- bios_wr32(bios, reg, val);
- return 13;
-}
-
-static int
-init_auxch(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_AUXCH opcode: 0x98 ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): address
- * offset + 5 (8 bit): count
- * offset + 6 (8 bit): mask 0
- * offset + 7 (8 bit): data 0
- * ...
- *
- */
-
- struct drm_device *dev = bios->dev;
- struct nouveau_i2c_chan *auxch;
- uint32_t addr = ROM32(bios->data[offset + 1]);
- uint8_t count = bios->data[offset + 5];
- int len = 6 + count * 2;
- int ret, i;
-
- if (!bios->display.output) {
- NV_ERROR(dev, "INIT_AUXCH: no active output\n");
- return len;
- }
-
- auxch = init_i2c_device_find(dev, bios->display.output->i2c_index);
- if (!auxch) {
- NV_ERROR(dev, "INIT_AUXCH: couldn't get auxch %d\n",
- bios->display.output->i2c_index);
- return len;
- }
-
- if (!iexec->execute)
- return len;
-
- offset += 6;
- for (i = 0; i < count; i++, offset += 2) {
- uint8_t data;
-
- ret = nouveau_dp_auxch(auxch, 9, addr, &data, 1);
- if (ret) {
- NV_ERROR(dev, "INIT_AUXCH: rd auxch fail %d\n", ret);
- return len;
- }
-
- data &= bios->data[offset + 0];
- data |= bios->data[offset + 1];
-
- ret = nouveau_dp_auxch(auxch, 8, addr, &data, 1);
- if (ret) {
- NV_ERROR(dev, "INIT_AUXCH: wr auxch fail %d\n", ret);
- return len;
- }
- }
-
- return len;
-}
-
-static int
-init_zm_auxch(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_ZM_AUXCH opcode: 0x99 ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (32 bit): address
- * offset + 5 (8 bit): count
- * offset + 6 (8 bit): data 0
- * ...
- *
- */
-
- struct drm_device *dev = bios->dev;
- struct nouveau_i2c_chan *auxch;
- uint32_t addr = ROM32(bios->data[offset + 1]);
- uint8_t count = bios->data[offset + 5];
- int len = 6 + count;
- int ret, i;
-
- if (!bios->display.output) {
- NV_ERROR(dev, "INIT_ZM_AUXCH: no active output\n");
- return len;
- }
-
- auxch = init_i2c_device_find(dev, bios->display.output->i2c_index);
- if (!auxch) {
- NV_ERROR(dev, "INIT_ZM_AUXCH: couldn't get auxch %d\n",
- bios->display.output->i2c_index);
- return len;
- }
-
- if (!iexec->execute)
- return len;
-
- offset += 6;
- for (i = 0; i < count; i++, offset++) {
- ret = nouveau_dp_auxch(auxch, 8, addr, &bios->data[offset], 1);
- if (ret) {
- NV_ERROR(dev, "INIT_ZM_AUXCH: wr auxch fail %d\n", ret);
- return len;
- }
- }
-
- return len;
-}
-
-static int
-init_i2c_long_if(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
-{
- /*
- * INIT_I2C_LONG_IF opcode: 0x9A ('')
- *
- * offset (8 bit): opcode
- * offset + 1 (8 bit): DCB I2C table entry index
- * offset + 2 (8 bit): I2C slave address
- * offset + 3 (16 bit): I2C register
- * offset + 5 (8 bit): mask
- * offset + 6 (8 bit): data
- *
- * Read the register given by "I2C register" on the device addressed
- * by "I2C slave address" on the I2C bus given by "DCB I2C table
- * entry index". Compare the result AND "mask" to "data".
- * If they're not equal, skip subsequent opcodes until condition is
- * inverted (INIT_NOT), or we hit INIT_RESUME
- */
-
- uint8_t i2c_index = bios->data[offset + 1];
- uint8_t i2c_address = bios->data[offset + 2] >> 1;
- uint8_t reglo = bios->data[offset + 3];
- uint8_t reghi = bios->data[offset + 4];
- uint8_t mask = bios->data[offset + 5];
- uint8_t data = bios->data[offset + 6];
- struct nouveau_i2c_chan *chan;
- uint8_t buf0[2] = { reghi, reglo };
- uint8_t buf1[1];
- struct i2c_msg msg[2] = {
- { i2c_address, 0, 1, buf0 },
- { i2c_address, I2C_M_RD, 1, buf1 },
- };
- int ret;
-
- /* no execute check by design */
-
- BIOSLOG(bios, "0x%04X: DCBI2CIndex: 0x%02X, I2CAddress: 0x%02X\n",
- offset, i2c_index, i2c_address);
-
- chan = init_i2c_device_find(bios->dev, i2c_index);
- if (!chan)
- return -ENODEV;
-
-
- ret = i2c_transfer(&chan->adapter, msg, 2);
- if (ret < 0) {
- BIOSLOG(bios, "0x%04X: I2CReg: 0x%02X:0x%02X, Value: [no device], "
- "Mask: 0x%02X, Data: 0x%02X\n",
- offset, reghi, reglo, mask, data);
- iexec->execute = 0;
- return 7;
- }
-
- BIOSLOG(bios, "0x%04X: I2CReg: 0x%02X:0x%02X, Value: 0x%02X, "
- "Mask: 0x%02X, Data: 0x%02X\n",
- offset, reghi, reglo, buf1[0], mask, data);
-
- iexec->execute = ((buf1[0] & mask) == data);
-
- return 7;
-}
-
-static struct init_tbl_entry itbl_entry[] = {
- /* command name , id , length , offset , mult , command handler */
- /* INIT_PROG (0x31, 15, 10, 4) removed due to no example of use */
- { "INIT_IO_RESTRICT_PROG" , 0x32, init_io_restrict_prog },
- { "INIT_REPEAT" , 0x33, init_repeat },
- { "INIT_IO_RESTRICT_PLL" , 0x34, init_io_restrict_pll },
- { "INIT_END_REPEAT" , 0x36, init_end_repeat },
- { "INIT_COPY" , 0x37, init_copy },
- { "INIT_NOT" , 0x38, init_not },
- { "INIT_IO_FLAG_CONDITION" , 0x39, init_io_flag_condition },
- { "INIT_DP_CONDITION" , 0x3A, init_dp_condition },
- { "INIT_OP_3B" , 0x3B, init_op_3b },
- { "INIT_OP_3C" , 0x3C, init_op_3c },
- { "INIT_INDEX_ADDRESS_LATCHED" , 0x49, init_idx_addr_latched },
- { "INIT_IO_RESTRICT_PLL2" , 0x4A, init_io_restrict_pll2 },
- { "INIT_PLL2" , 0x4B, init_pll2 },
- { "INIT_I2C_BYTE" , 0x4C, init_i2c_byte },
- { "INIT_ZM_I2C_BYTE" , 0x4D, init_zm_i2c_byte },
- { "INIT_ZM_I2C" , 0x4E, init_zm_i2c },
- { "INIT_TMDS" , 0x4F, init_tmds },
- { "INIT_ZM_TMDS_GROUP" , 0x50, init_zm_tmds_group },
- { "INIT_CR_INDEX_ADDRESS_LATCHED" , 0x51, init_cr_idx_adr_latch },
- { "INIT_CR" , 0x52, init_cr },
- { "INIT_ZM_CR" , 0x53, init_zm_cr },
- { "INIT_ZM_CR_GROUP" , 0x54, init_zm_cr_group },
- { "INIT_CONDITION_TIME" , 0x56, init_condition_time },
- { "INIT_LTIME" , 0x57, init_ltime },
- { "INIT_ZM_REG_SEQUENCE" , 0x58, init_zm_reg_sequence },
- /* INIT_INDIRECT_REG (0x5A, 7, 0, 0) removed due to no example of use */
- { "INIT_SUB_DIRECT" , 0x5B, init_sub_direct },
- { "INIT_I2C_IF" , 0x5E, init_i2c_if },
- { "INIT_COPY_NV_REG" , 0x5F, init_copy_nv_reg },
- { "INIT_ZM_INDEX_IO" , 0x62, init_zm_index_io },
- { "INIT_COMPUTE_MEM" , 0x63, init_compute_mem },
- { "INIT_RESET" , 0x65, init_reset },
- { "INIT_CONFIGURE_MEM" , 0x66, init_configure_mem },
- { "INIT_CONFIGURE_CLK" , 0x67, init_configure_clk },
- { "INIT_CONFIGURE_PREINIT" , 0x68, init_configure_preinit },
- { "INIT_IO" , 0x69, init_io },
- { "INIT_SUB" , 0x6B, init_sub },
- { "INIT_RAM_CONDITION" , 0x6D, init_ram_condition },
- { "INIT_NV_REG" , 0x6E, init_nv_reg },
- { "INIT_MACRO" , 0x6F, init_macro },
- { "INIT_DONE" , 0x71, init_done },
- { "INIT_RESUME" , 0x72, init_resume },
- /* INIT_RAM_CONDITION2 (0x73, 9, 0, 0) removed due to no example of use */
- { "INIT_TIME" , 0x74, init_time },
- { "INIT_CONDITION" , 0x75, init_condition },
- { "INIT_IO_CONDITION" , 0x76, init_io_condition },
- { "INIT_INDEX_IO" , 0x78, init_index_io },
- { "INIT_PLL" , 0x79, init_pll },
- { "INIT_ZM_REG" , 0x7A, init_zm_reg },
- { "INIT_RAM_RESTRICT_PLL" , 0x87, init_ram_restrict_pll },
- { "INIT_8C" , 0x8C, init_8c },
- { "INIT_8D" , 0x8D, init_8d },
- { "INIT_GPIO" , 0x8E, init_gpio },
- { "INIT_RAM_RESTRICT_ZM_REG_GROUP" , 0x8F, init_ram_restrict_zm_reg_group },
- { "INIT_COPY_ZM_REG" , 0x90, init_copy_zm_reg },
- { "INIT_ZM_REG_GROUP_ADDRESS_LATCHED" , 0x91, init_zm_reg_group_addr_latched },
- { "INIT_RESERVED" , 0x92, init_reserved },
- { "INIT_96" , 0x96, init_96 },
- { "INIT_97" , 0x97, init_97 },
- { "INIT_AUXCH" , 0x98, init_auxch },
- { "INIT_ZM_AUXCH" , 0x99, init_zm_auxch },
- { "INIT_I2C_LONG_IF" , 0x9A, init_i2c_long_if },
- { NULL , 0 , NULL }
-};
-
-#define MAX_TABLE_OPS 1000
-
-static int
-parse_init_table(struct nvbios *bios, unsigned int offset,
- struct init_exec *iexec)
-{
- /*
- * Parses all commands in an init table.
- *
- * We start out executing all commands found in the init table. Some
- * opcodes may change the status of iexec->execute to SKIP, which will
- * cause the following opcodes to perform no operation until the value
- * is changed back to EXECUTE.
- */
-
- int count = 0, i, ret;
- uint8_t id;
-
- /*
- * Loop until INIT_DONE causes us to break out of the loop
- * (or until offset > bios length just in case... )
- * (and no more than MAX_TABLE_OPS iterations, just in case... )
- */
- while ((offset < bios->length) && (count++ < MAX_TABLE_OPS)) {
- id = bios->data[offset];
-
- /* Find matching id in itbl_entry */
- for (i = 0; itbl_entry[i].name && (itbl_entry[i].id != id); i++)
- ;
-
- if (!itbl_entry[i].name) {
- NV_ERROR(bios->dev,
- "0x%04X: Init table command not found: "
- "0x%02X\n", offset, id);
- return -ENOENT;
- }
-
- BIOSLOG(bios, "0x%04X: [ (0x%02X) - %s ]\n", offset,
- itbl_entry[i].id, itbl_entry[i].name);
-
- /* execute eventual command handler */
- ret = (*itbl_entry[i].handler)(bios, offset, iexec);
- if (ret < 0) {
- NV_ERROR(bios->dev, "0x%04X: Failed parsing init "
- "table opcode: %s %d\n", offset,
- itbl_entry[i].name, ret);
- }
-
- if (ret <= 0)
- break;
-
- /*
- * Add the offset of the current command including all data
- * of that command. The offset will then be pointing on the
- * next op code.
- */
- offset += ret;
- }
-
- if (offset >= bios->length)
- NV_WARN(bios->dev,
- "Offset 0x%04X greater than known bios image length. "
- "Corrupt image?\n", offset);
- if (count >= MAX_TABLE_OPS)
- NV_WARN(bios->dev,
- "More than %d opcodes to a table is unlikely, "
- "is the bios image corrupt?\n", MAX_TABLE_OPS);
-
- return 0;
-}
-
-static void
-parse_init_tables(struct nvbios *bios)
-{
- /* Loops and calls parse_init_table() for each present table. */
-
- int i = 0;
- uint16_t table;
- struct init_exec iexec = {true, false};
-
- if (bios->old_style_init) {
- if (bios->init_script_tbls_ptr)
- parse_init_table(bios, bios->init_script_tbls_ptr, &iexec);
- if (bios->extra_init_script_tbl_ptr)
- parse_init_table(bios, bios->extra_init_script_tbl_ptr, &iexec);
-
- return;
- }
-
- while ((table = ROM16(bios->data[bios->init_script_tbls_ptr + i]))) {
- NV_INFO(bios->dev,
- "Parsing VBIOS init table %d at offset 0x%04X\n",
- i / 2, table);
- BIOSLOG(bios, "0x%04X: ------ Executing following commands ------\n", table);
-
- parse_init_table(bios, table, &iexec);
- i += 2;
- }
-}
-
-static uint16_t clkcmptable(struct nvbios *bios, uint16_t clktable, int pxclk)
-{
- int compare_record_len, i = 0;
- uint16_t compareclk, scriptptr = 0;
-
- if (bios->major_version < 5) /* pre BIT */
- compare_record_len = 3;
- else
- compare_record_len = 4;
-
- do {
- compareclk = ROM16(bios->data[clktable + compare_record_len * i]);
- if (pxclk >= compareclk * 10) {
- if (bios->major_version < 5) {
- uint8_t tmdssub = bios->data[clktable + 2 + compare_record_len * i];
- scriptptr = ROM16(bios->data[bios->init_script_tbls_ptr + tmdssub * 2]);
- } else
- scriptptr = ROM16(bios->data[clktable + 2 + compare_record_len * i]);
- break;
- }
- i++;
- } while (compareclk);
-
- return scriptptr;
-}
-
-static void
-run_digital_op_script(struct drm_device *dev, uint16_t scriptptr,
- struct dcb_entry *dcbent, int head, bool dl)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- struct init_exec iexec = {true, false};
-
- NV_TRACE(dev, "0x%04X: Parsing digital output script table\n",
- scriptptr);
- bios_idxprt_wr(bios, NV_CIO_CRX__COLOR, NV_CIO_CRE_44,
- head ? NV_CIO_CRE_44_HEADB : NV_CIO_CRE_44_HEADA);
- /* note: if dcb entries have been merged, index may be misleading */
- NVWriteVgaCrtc5758(dev, head, 0, dcbent->index);
- parse_init_table(bios, scriptptr, &iexec);
-
- nv04_dfp_bind_head(dev, dcbent, head, dl);
-}
-
-static int call_lvds_manufacturer_script(struct drm_device *dev, struct dcb_entry *dcbent, int head, enum LVDS_script script)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- uint8_t sub = bios->data[bios->fp.xlated_entry + script] + (bios->fp.link_c_increment && dcbent->or & OUTPUT_C ? 1 : 0);
- uint16_t scriptofs = ROM16(bios->data[bios->init_script_tbls_ptr + sub * 2]);
-
- if (!bios->fp.xlated_entry || !sub || !scriptofs)
- return -EINVAL;
-
- run_digital_op_script(dev, scriptofs, dcbent, head, bios->fp.dual_link);
-
- if (script == LVDS_PANEL_OFF) {
- /* off-on delay in ms */
- msleep(ROM16(bios->data[bios->fp.xlated_entry + 7]));
- }
-#ifdef __powerpc__
- /* Powerbook specific quirks */
- if (script == LVDS_RESET &&
- (dev->pci_device == 0x0179 || dev->pci_device == 0x0189 ||
- dev->pci_device == 0x0329))
- nv_write_tmds(dev, dcbent->or, 0, 0x02, 0x72);
-#endif
-
- return 0;
-}
-
-static int run_lvds_table(struct drm_device *dev, struct dcb_entry *dcbent, int head, enum LVDS_script script, int pxclk)
-{
- /*
- * The BIT LVDS table's header has the information to setup the
- * necessary registers. Following the standard 4 byte header are:
- * A bitmask byte and a dual-link transition pxclk value for use in
- * selecting the init script when not using straps; 4 script pointers
- * for panel power, selected by output and on/off; and 8 table pointers
- * for panel init, the needed one determined by output, and bits in the
- * conf byte. These tables are similar to the TMDS tables, consisting
- * of a list of pxclks and script pointers.
- */
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- unsigned int outputset = (dcbent->or == 4) ? 1 : 0;
- uint16_t scriptptr = 0, clktable;
-
- /*
- * For now we assume version 3.0 table - g80 support will need some
- * changes
- */
-
- switch (script) {
- case LVDS_INIT:
- return -ENOSYS;
- case LVDS_BACKLIGHT_ON:
- case LVDS_PANEL_ON:
- scriptptr = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 7 + outputset * 2]);
- break;
- case LVDS_BACKLIGHT_OFF:
- case LVDS_PANEL_OFF:
- scriptptr = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 11 + outputset * 2]);
- break;
- case LVDS_RESET:
- clktable = bios->fp.lvdsmanufacturerpointer + 15;
- if (dcbent->or == 4)
- clktable += 8;
-
- if (dcbent->lvdsconf.use_straps_for_mode) {
- if (bios->fp.dual_link)
- clktable += 4;
- if (bios->fp.if_is_24bit)
- clktable += 2;
- } else {
- /* using EDID */
- int cmpval_24bit = (dcbent->or == 4) ? 4 : 1;
-
- if (bios->fp.dual_link) {
- clktable += 4;
- cmpval_24bit <<= 1;
- }
-
- if (bios->fp.strapless_is_24bit & cmpval_24bit)
- clktable += 2;
- }
-
- clktable = ROM16(bios->data[clktable]);
- if (!clktable) {
- NV_ERROR(dev, "Pixel clock comparison table not found\n");
- return -ENOENT;
- }
- scriptptr = clkcmptable(bios, clktable, pxclk);
- }
-
- if (!scriptptr) {
- NV_ERROR(dev, "LVDS output init script not found\n");
- return -ENOENT;
- }
- run_digital_op_script(dev, scriptptr, dcbent, head, bios->fp.dual_link);
-
- return 0;
-}
-
-int call_lvds_script(struct drm_device *dev, struct dcb_entry *dcbent, int head, enum LVDS_script script, int pxclk)
-{
- /*
- * LVDS operations are multiplexed in an effort to present a single API
- * which works with two vastly differing underlying structures.
- * This acts as the demux
- */
-
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- uint8_t lvds_ver = bios->data[bios->fp.lvdsmanufacturerpointer];
- uint32_t sel_clk_binding, sel_clk;
- int ret;
-
- if (bios->fp.last_script_invoc == (script << 1 | head) || !lvds_ver ||
- (lvds_ver >= 0x30 && script == LVDS_INIT))
- return 0;
-
- if (!bios->fp.lvds_init_run) {
- bios->fp.lvds_init_run = true;
- call_lvds_script(dev, dcbent, head, LVDS_INIT, pxclk);
- }
-
- if (script == LVDS_PANEL_ON && bios->fp.reset_after_pclk_change)
- call_lvds_script(dev, dcbent, head, LVDS_RESET, pxclk);
- if (script == LVDS_RESET && bios->fp.power_off_for_reset)
- call_lvds_script(dev, dcbent, head, LVDS_PANEL_OFF, pxclk);
-
- NV_TRACE(dev, "Calling LVDS script %d:\n", script);
-
- /* don't let script change pll->head binding */
- sel_clk_binding = bios_rd32(bios, NV_PRAMDAC_SEL_CLK) & 0x50000;
-
- if (lvds_ver < 0x30)
- ret = call_lvds_manufacturer_script(dev, dcbent, head, script);
- else
- ret = run_lvds_table(dev, dcbent, head, script, pxclk);
-
- bios->fp.last_script_invoc = (script << 1 | head);
-
- sel_clk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK) & ~0x50000;
- NVWriteRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK, sel_clk | sel_clk_binding);
- /* some scripts set a value in NV_PBUS_POWERCTRL_2 and break video overlay */
- nvWriteMC(dev, NV_PBUS_POWERCTRL_2, 0);
-
- return ret;
-}
-
-struct lvdstableheader {
- uint8_t lvds_ver, headerlen, recordlen;
-};
-
-static int parse_lvds_manufacturer_table_header(struct drm_device *dev, struct nvbios *bios, struct lvdstableheader *lth)
-{
- /*
- * BMP version (0xa) LVDS table has a simple header of version and
- * record length. The BIT LVDS table has the typical BIT table header:
- * version byte, header length byte, record length byte, and a byte for
- * the maximum number of records that can be held in the table.
- */
-
- uint8_t lvds_ver, headerlen, recordlen;
-
- memset(lth, 0, sizeof(struct lvdstableheader));
-
- if (bios->fp.lvdsmanufacturerpointer == 0x0) {
- NV_ERROR(dev, "Pointer to LVDS manufacturer table invalid\n");
- return -EINVAL;
- }
-
- lvds_ver = bios->data[bios->fp.lvdsmanufacturerpointer];
-
- switch (lvds_ver) {
- case 0x0a: /* pre NV40 */
- headerlen = 2;
- recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1];
- break;
- case 0x30: /* NV4x */
- headerlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1];
- if (headerlen < 0x1f) {
- NV_ERROR(dev, "LVDS table header not understood\n");
- return -EINVAL;
- }
- recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 2];
- break;
- case 0x40: /* G80/G90 */
- headerlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1];
- if (headerlen < 0x7) {
- NV_ERROR(dev, "LVDS table header not understood\n");
- return -EINVAL;
- }
- recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 2];
- break;
- default:
- NV_ERROR(dev,
- "LVDS table revision %d.%d not currently supported\n",
- lvds_ver >> 4, lvds_ver & 0xf);
- return -ENOSYS;
- }
-
- lth->lvds_ver = lvds_ver;
- lth->headerlen = headerlen;
- lth->recordlen = recordlen;
-
- return 0;
-}
-
-static int
-get_fp_strap(struct drm_device *dev, struct nvbios *bios)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
-
- /*
- * The fp strap is normally dictated by the "User Strap" in
- * PEXTDEV_BOOT_0[20:16], but on BMP cards when bit 2 of the
- * Internal_Flags struct at 0x48 is set, the user strap gets overriden
- * by the PCI subsystem ID during POST, but not before the previous user
- * strap has been committed to CR58 for CR57=0xf on head A, which may be
- * read and used instead
- */
-
- if (bios->major_version < 5 && bios->data[0x48] & 0x4)
- return NVReadVgaCrtc5758(dev, 0, 0xf) & 0xf;
-
- if (dev_priv->card_type >= NV_50)
- return (bios_rd32(bios, NV_PEXTDEV_BOOT_0) >> 24) & 0xf;
- else
- return (bios_rd32(bios, NV_PEXTDEV_BOOT_0) >> 16) & 0xf;
-}
-
-static int parse_fp_mode_table(struct drm_device *dev, struct nvbios *bios)
-{
- uint8_t *fptable;
- uint8_t fptable_ver, headerlen = 0, recordlen, fpentries = 0xf, fpindex;
- int ret, ofs, fpstrapping;
- struct lvdstableheader lth;
-
- if (bios->fp.fptablepointer == 0x0) {
- /* Apple cards don't have the fp table; the laptops use DDC */
- /* The table is also missing on some x86 IGPs */
-#ifndef __powerpc__
- NV_ERROR(dev, "Pointer to flat panel table invalid\n");
-#endif
- bios->digital_min_front_porch = 0x4b;
- return 0;
- }
-
- fptable = &bios->data[bios->fp.fptablepointer];
- fptable_ver = fptable[0];
-
- switch (fptable_ver) {
- /*
- * BMP version 0x5.0x11 BIOSen have version 1 like tables, but no
- * version field, and miss one of the spread spectrum/PWM bytes.
- * This could affect early GF2Go parts (not seen any appropriate ROMs
- * though). Here we assume that a version of 0x05 matches this case
- * (combining with a BMP version check would be better), as the
- * common case for the panel type field is 0x0005, and that is in
- * fact what we are reading the first byte of.
- */
- case 0x05: /* some NV10, 11, 15, 16 */
- recordlen = 42;
- ofs = -1;
- break;
- case 0x10: /* some NV15/16, and NV11+ */
- recordlen = 44;
- ofs = 0;
- break;
- case 0x20: /* NV40+ */
- headerlen = fptable[1];
- recordlen = fptable[2];
- fpentries = fptable[3];
- /*
- * fptable[4] is the minimum
- * RAMDAC_FP_HCRTC -> RAMDAC_FP_HSYNC_START gap
- */
- bios->digital_min_front_porch = fptable[4];
- ofs = -7;
- break;
- default:
- NV_ERROR(dev,
- "FP table revision %d.%d not currently supported\n",
- fptable_ver >> 4, fptable_ver & 0xf);
- return -ENOSYS;
- }
-
- if (!bios->is_mobile) /* !mobile only needs digital_min_front_porch */
- return 0;
-
- ret = parse_lvds_manufacturer_table_header(dev, bios, <h);
- if (ret)
- return ret;
-
- if (lth.lvds_ver == 0x30 || lth.lvds_ver == 0x40) {
- bios->fp.fpxlatetableptr = bios->fp.lvdsmanufacturerpointer +
- lth.headerlen + 1;
- bios->fp.xlatwidth = lth.recordlen;
- }
- if (bios->fp.fpxlatetableptr == 0x0) {
- NV_ERROR(dev, "Pointer to flat panel xlat table invalid\n");
- return -EINVAL;
- }
-
- fpstrapping = get_fp_strap(dev, bios);
-
- fpindex = bios->data[bios->fp.fpxlatetableptr +
- fpstrapping * bios->fp.xlatwidth];
-
- if (fpindex > fpentries) {
- NV_ERROR(dev, "Bad flat panel table index\n");
- return -ENOENT;
- }
-
- /* nv4x cards need both a strap value and fpindex of 0xf to use DDC */
- if (lth.lvds_ver > 0x10)
- bios->fp_no_ddc = fpstrapping != 0xf || fpindex != 0xf;
-
- /*
- * If either the strap or xlated fpindex value are 0xf there is no
- * panel using a strap-derived bios mode present. this condition
- * includes, but is different from, the DDC panel indicator above
- */
- if (fpstrapping == 0xf || fpindex == 0xf)
- return 0;
-
- bios->fp.mode_ptr = bios->fp.fptablepointer + headerlen +
- recordlen * fpindex + ofs;
-
- NV_TRACE(dev, "BIOS FP mode: %dx%d (%dkHz pixel clock)\n",
- ROM16(bios->data[bios->fp.mode_ptr + 11]) + 1,
- ROM16(bios->data[bios->fp.mode_ptr + 25]) + 1,
- ROM16(bios->data[bios->fp.mode_ptr + 7]) * 10);
-
- return 0;
-}
-
-bool nouveau_bios_fp_mode(struct drm_device *dev, struct drm_display_mode *mode)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- uint8_t *mode_entry = &bios->data[bios->fp.mode_ptr];
-
- if (!mode) /* just checking whether we can produce a mode */
- return bios->fp.mode_ptr;
-
- memset(mode, 0, sizeof(struct drm_display_mode));
- /*
- * For version 1.0 (version in byte 0):
- * bytes 1-2 are "panel type", including bits on whether Colour/mono,
- * single/dual link, and type (TFT etc.)
- * bytes 3-6 are bits per colour in RGBX
- */
- mode->clock = ROM16(mode_entry[7]) * 10;
- /* bytes 9-10 is HActive */
- mode->hdisplay = ROM16(mode_entry[11]) + 1;
- /*
- * bytes 13-14 is HValid Start
- * bytes 15-16 is HValid End
- */
- mode->hsync_start = ROM16(mode_entry[17]) + 1;
- mode->hsync_end = ROM16(mode_entry[19]) + 1;
- mode->htotal = ROM16(mode_entry[21]) + 1;
- /* bytes 23-24, 27-30 similarly, but vertical */
- mode->vdisplay = ROM16(mode_entry[25]) + 1;
- mode->vsync_start = ROM16(mode_entry[31]) + 1;
- mode->vsync_end = ROM16(mode_entry[33]) + 1;
- mode->vtotal = ROM16(mode_entry[35]) + 1;
- mode->flags |= (mode_entry[37] & 0x10) ?
- DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
- mode->flags |= (mode_entry[37] & 0x1) ?
- DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
- /*
- * bytes 38-39 relate to spread spectrum settings
- * bytes 40-43 are something to do with PWM
- */
-
- mode->status = MODE_OK;
- mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
- drm_mode_set_name(mode);
- return bios->fp.mode_ptr;
-}
-
-int nouveau_bios_parse_lvds_table(struct drm_device *dev, int pxclk, bool *dl, bool *if_is_24bit)
-{
- /*
- * The LVDS table header is (mostly) described in
- * parse_lvds_manufacturer_table_header(): the BIT header additionally
- * contains the dual-link transition pxclk (in 10s kHz), at byte 5 - if
- * straps are not being used for the panel, this specifies the frequency
- * at which modes should be set up in the dual link style.
- *
- * Following the header, the BMP (ver 0xa) table has several records,
- * indexed by a separate xlat table, indexed in turn by the fp strap in
- * EXTDEV_BOOT. Each record had a config byte, followed by 6 script
- * numbers for use by INIT_SUB which controlled panel init and power,
- * and finally a dword of ms to sleep between power off and on
- * operations.
- *
- * In the BIT versions, the table following the header serves as an
- * integrated config and xlat table: the records in the table are
- * indexed by the FP strap nibble in EXTDEV_BOOT, and each record has
- * two bytes - the first as a config byte, the second for indexing the
- * fp mode table pointed to by the BIT 'D' table
- *
- * DDC is not used until after card init, so selecting the correct table
- * entry and setting the dual link flag for EDID equipped panels,
- * requiring tests against the native-mode pixel clock, cannot be done
- * until later, when this function should be called with non-zero pxclk
- */
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- int fpstrapping = get_fp_strap(dev, bios), lvdsmanufacturerindex = 0;
- struct lvdstableheader lth;
- uint16_t lvdsofs;
- int ret, chip_version = bios->chip_version;
-
- ret = parse_lvds_manufacturer_table_header(dev, bios, <h);
- if (ret)
- return ret;
-
- switch (lth.lvds_ver) {
- case 0x0a: /* pre NV40 */
- lvdsmanufacturerindex = bios->data[
- bios->fp.fpxlatemanufacturertableptr +
- fpstrapping];
-
- /* we're done if this isn't the EDID panel case */
- if (!pxclk)
- break;
-
- if (chip_version < 0x25) {
- /* nv17 behaviour
- *
- * It seems the old style lvds script pointer is reused
- * to select 18/24 bit colour depth for EDID panels.
- */
- lvdsmanufacturerindex =
- (bios->legacy.lvds_single_a_script_ptr & 1) ?
- 2 : 0;
- if (pxclk >= bios->fp.duallink_transition_clk)
- lvdsmanufacturerindex++;
- } else if (chip_version < 0x30) {
- /* nv28 behaviour (off-chip encoder)
- *
- * nv28 does a complex dance of first using byte 121 of
- * the EDID to choose the lvdsmanufacturerindex, then
- * later attempting to match the EDID manufacturer and
- * product IDs in a table (signature 'pidt' (panel id
- * table?)), setting an lvdsmanufacturerindex of 0 and
- * an fp strap of the match index (or 0xf if none)
- */
- lvdsmanufacturerindex = 0;
- } else {
- /* nv31, nv34 behaviour */
- lvdsmanufacturerindex = 0;
- if (pxclk >= bios->fp.duallink_transition_clk)
- lvdsmanufacturerindex = 2;
- if (pxclk >= 140000)
- lvdsmanufacturerindex = 3;
- }
-
- /*
- * nvidia set the high nibble of (cr57=f, cr58) to
- * lvdsmanufacturerindex in this case; we don't
- */
- break;
- case 0x30: /* NV4x */
- case 0x40: /* G80/G90 */
- lvdsmanufacturerindex = fpstrapping;
- break;
- default:
- NV_ERROR(dev, "LVDS table revision not currently supported\n");
- return -ENOSYS;
- }
-
- lvdsofs = bios->fp.xlated_entry = bios->fp.lvdsmanufacturerpointer + lth.headerlen + lth.recordlen * lvdsmanufacturerindex;
- switch (lth.lvds_ver) {
- case 0x0a:
- bios->fp.power_off_for_reset = bios->data[lvdsofs] & 1;
- bios->fp.reset_after_pclk_change = bios->data[lvdsofs] & 2;
- bios->fp.dual_link = bios->data[lvdsofs] & 4;
- bios->fp.link_c_increment = bios->data[lvdsofs] & 8;
- *if_is_24bit = bios->data[lvdsofs] & 16;
- break;
- case 0x30:
- case 0x40:
- /*
- * No sign of the "power off for reset" or "reset for panel
- * on" bits, but it's safer to assume we should
- */
- bios->fp.power_off_for_reset = true;
- bios->fp.reset_after_pclk_change = true;
-
- /*
- * It's ok lvdsofs is wrong for nv4x edid case; dual_link is
- * over-written, and if_is_24bit isn't used
- */
- bios->fp.dual_link = bios->data[lvdsofs] & 1;
- bios->fp.if_is_24bit = bios->data[lvdsofs] & 2;
- bios->fp.strapless_is_24bit = bios->data[bios->fp.lvdsmanufacturerpointer + 4];
- bios->fp.duallink_transition_clk = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 5]) * 10;
- break;
- }
-
- /* Dell Latitude D620 reports a too-high value for the dual-link
- * transition freq, causing us to program the panel incorrectly.
- *
- * It doesn't appear the VBIOS actually uses its transition freq
- * (90000kHz), instead it uses the "Number of LVDS channels" field
- * out of the panel ID structure (http://www.spwg.org/).
- *
- * For the moment, a quirk will do :)
- */
- if (nv_match_device(dev, 0x01d7, 0x1028, 0x01c2))
- bios->fp.duallink_transition_clk = 80000;
-
- /* set dual_link flag for EDID case */
- if (pxclk && (chip_version < 0x25 || chip_version > 0x28))
- bios->fp.dual_link = (pxclk >= bios->fp.duallink_transition_clk);
-
- *dl = bios->fp.dual_link;
-
- return 0;
-}
-
-static uint8_t *
-bios_output_config_match(struct drm_device *dev, struct dcb_entry *dcbent,
- uint16_t record, int record_len, int record_nr,
- bool match_link)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- uint32_t entry;
- uint16_t table;
- int i, v;
-
- switch (dcbent->type) {
- case OUTPUT_TMDS:
- case OUTPUT_LVDS:
- case OUTPUT_DP:
- break;
- default:
- match_link = false;
- break;
- }
-
- for (i = 0; i < record_nr; i++, record += record_len) {
- table = ROM16(bios->data[record]);
- if (!table)
- continue;
- entry = ROM32(bios->data[table]);
-
- if (match_link) {
- v = (entry & 0x00c00000) >> 22;
- if (!(v & dcbent->sorconf.link))
- continue;
- }
-
- v = (entry & 0x000f0000) >> 16;
- if (!(v & dcbent->or))
- continue;
-
- v = (entry & 0x000000f0) >> 4;
- if (v != dcbent->location)
- continue;
-
- v = (entry & 0x0000000f);
- if (v != dcbent->type)
- continue;
-
- return &bios->data[table];
- }
-
- return NULL;
-}
-
-void *
-nouveau_bios_dp_table(struct drm_device *dev, struct dcb_entry *dcbent,
- int *length)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- uint8_t *table;
-
- if (!bios->display.dp_table_ptr) {
- NV_ERROR(dev, "No pointer to DisplayPort table\n");
- return NULL;
- }
- table = &bios->data[bios->display.dp_table_ptr];
-
- if (table[0] != 0x20 && table[0] != 0x21) {
- NV_ERROR(dev, "DisplayPort table version 0x%02x unknown\n",
- table[0]);
- return NULL;
- }
-
- *length = table[4];
- return bios_output_config_match(dev, dcbent,
- bios->display.dp_table_ptr + table[1],
- table[2], table[3], table[0] >= 0x21);
-}
-
-int
-nouveau_bios_run_display_table(struct drm_device *dev, struct dcb_entry *dcbent,
- uint32_t sub, int pxclk)
-{
- /*
- * The display script table is located by the BIT 'U' table.
- *
- * It contains an array of pointers to various tables describing
- * a particular output type. The first 32-bits of the output
- * tables contains similar information to a DCB entry, and is
- * used to decide whether that particular table is suitable for
- * the output you want to access.
- *
- * The "record header length" field here seems to indicate the
- * offset of the first configuration entry in the output tables.
- * This is 10 on most cards I've seen, but 12 has been witnessed
- * on DP cards, and there's another script pointer within the
- * header.
- *
- * offset + 0 ( 8 bits): version
- * offset + 1 ( 8 bits): header length
- * offset + 2 ( 8 bits): record length
- * offset + 3 ( 8 bits): number of records
- * offset + 4 ( 8 bits): record header length
- * offset + 5 (16 bits): pointer to first output script table
- */
-
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- uint8_t *table = &bios->data[bios->display.script_table_ptr];
- uint8_t *otable = NULL;
- uint16_t script;
- int i = 0;
-
- if (!bios->display.script_table_ptr) {
- NV_ERROR(dev, "No pointer to output script table\n");
- return 1;
- }
-
- /*
- * Nothing useful has been in any of the pre-2.0 tables I've seen,
- * so until they are, we really don't need to care.
- */
- if (table[0] < 0x20)
- return 1;
-
- if (table[0] != 0x20 && table[0] != 0x21) {
- NV_ERROR(dev, "Output script table version 0x%02x unknown\n",
- table[0]);
- return 1;
- }
-
- /*
- * The output script tables describing a particular output type
- * look as follows:
- *
- * offset + 0 (32 bits): output this table matches (hash of DCB)
- * offset + 4 ( 8 bits): unknown
- * offset + 5 ( 8 bits): number of configurations
- * offset + 6 (16 bits): pointer to some script
- * offset + 8 (16 bits): pointer to some script
- *
- * headerlen == 10
- * offset + 10 : configuration 0
- *
- * headerlen == 12
- * offset + 10 : pointer to some script
- * offset + 12 : configuration 0
- *
- * Each config entry is as follows:
- *
- * offset + 0 (16 bits): unknown, assumed to be a match value
- * offset + 2 (16 bits): pointer to script table (clock set?)
- * offset + 4 (16 bits): pointer to script table (reset?)
- *
- * There doesn't appear to be a count value to say how many
- * entries exist in each script table, instead, a 0 value in
- * the first 16-bit word seems to indicate both the end of the
- * list and the default entry. The second 16-bit word in the
- * script tables is a pointer to the script to execute.
- */
-
- NV_DEBUG_KMS(dev, "Searching for output entry for %d %d %d\n",
- dcbent->type, dcbent->location, dcbent->or);
- otable = bios_output_config_match(dev, dcbent, table[1] +
- bios->display.script_table_ptr,
- table[2], table[3], table[0] >= 0x21);
- if (!otable) {
- NV_DEBUG_KMS(dev, "failed to match any output table\n");
- return 1;
- }
-
- if (pxclk < -2 || pxclk > 0) {
- /* Try to find matching script table entry */
- for (i = 0; i < otable[5]; i++) {
- if (ROM16(otable[table[4] + i*6]) == sub)
- break;
- }
-
- if (i == otable[5]) {
- NV_ERROR(dev, "Table 0x%04x not found for %d/%d, "
- "using first\n",
- sub, dcbent->type, dcbent->or);
- i = 0;
- }
- }
-
- if (pxclk == 0) {
- script = ROM16(otable[6]);
- if (!script) {
- NV_DEBUG_KMS(dev, "output script 0 not found\n");
- return 1;
- }
-
- NV_DEBUG_KMS(dev, "0x%04X: parsing output script 0\n", script);
- nouveau_bios_run_init_table(dev, script, dcbent);
- } else
- if (pxclk == -1) {
- script = ROM16(otable[8]);
- if (!script) {
- NV_DEBUG_KMS(dev, "output script 1 not found\n");
- return 1;
- }
-
- NV_DEBUG_KMS(dev, "0x%04X: parsing output script 1\n", script);
- nouveau_bios_run_init_table(dev, script, dcbent);
- } else
- if (pxclk == -2) {
- if (table[4] >= 12)
- script = ROM16(otable[10]);
- else
- script = 0;
- if (!script) {
- NV_DEBUG_KMS(dev, "output script 2 not found\n");
- return 1;
- }
-
- NV_DEBUG_KMS(dev, "0x%04X: parsing output script 2\n", script);
- nouveau_bios_run_init_table(dev, script, dcbent);
- } else
- if (pxclk > 0) {
- script = ROM16(otable[table[4] + i*6 + 2]);
- if (script)
- script = clkcmptable(bios, script, pxclk);
- if (!script) {
- NV_DEBUG_KMS(dev, "clock script 0 not found\n");
- return 1;
- }
-
- NV_DEBUG_KMS(dev, "0x%04X: parsing clock script 0\n", script);
- nouveau_bios_run_init_table(dev, script, dcbent);
- } else
- if (pxclk < 0) {
- script = ROM16(otable[table[4] + i*6 + 4]);
- if (script)
- script = clkcmptable(bios, script, -pxclk);
- if (!script) {
- NV_DEBUG_KMS(dev, "clock script 1 not found\n");
- return 1;
- }
-
- NV_DEBUG_KMS(dev, "0x%04X: parsing clock script 1\n", script);
- nouveau_bios_run_init_table(dev, script, dcbent);
- }
-
- return 0;
-}
-
-
-int run_tmds_table(struct drm_device *dev, struct dcb_entry *dcbent, int head, int pxclk)
-{
- /*
- * the pxclk parameter is in kHz
- *
- * This runs the TMDS regs setting code found on BIT bios cards
- *
- * For ffs(or) == 1 use the first table, for ffs(or) == 2 and
- * ffs(or) == 3, use the second.
- */
-
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- int cv = bios->chip_version;
- uint16_t clktable = 0, scriptptr;
- uint32_t sel_clk_binding, sel_clk;
-
- /* pre-nv17 off-chip tmds uses scripts, post nv17 doesn't */
- if (cv >= 0x17 && cv != 0x1a && cv != 0x20 &&
- dcbent->location != DCB_LOC_ON_CHIP)
- return 0;
-
- switch (ffs(dcbent->or)) {
- case 1:
- clktable = bios->tmds.output0_script_ptr;
- break;
- case 2:
- case 3:
- clktable = bios->tmds.output1_script_ptr;
- break;
- }
-
- if (!clktable) {
- NV_ERROR(dev, "Pixel clock comparison table not found\n");
- return -EINVAL;
- }
-
- scriptptr = clkcmptable(bios, clktable, pxclk);
-
- if (!scriptptr) {
- NV_ERROR(dev, "TMDS output init script not found\n");
- return -ENOENT;
- }
-
- /* don't let script change pll->head binding */
- sel_clk_binding = bios_rd32(bios, NV_PRAMDAC_SEL_CLK) & 0x50000;
- run_digital_op_script(dev, scriptptr, dcbent, head, pxclk >= 165000);
- sel_clk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK) & ~0x50000;
- NVWriteRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK, sel_clk | sel_clk_binding);
-
- return 0;
-}
-
-int get_pll_limits(struct drm_device *dev, uint32_t limit_match, struct pll_lims *pll_lim)
-{
- /*
- * PLL limits table
- *
- * Version 0x10: NV30, NV31
- * One byte header (version), one record of 24 bytes
- * Version 0x11: NV36 - Not implemented
- * Seems to have same record style as 0x10, but 3 records rather than 1
- * Version 0x20: Found on Geforce 6 cards
- * Trivial 4 byte BIT header. 31 (0x1f) byte record length
- * Version 0x21: Found on Geforce 7, 8 and some Geforce 6 cards
- * 5 byte header, fifth byte of unknown purpose. 35 (0x23) byte record
- * length in general, some (integrated) have an extra configuration byte
- * Version 0x30: Found on Geforce 8, separates the register mapping
- * from the limits tables.
- */
-
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- int cv = bios->chip_version, pllindex = 0;
- uint8_t pll_lim_ver = 0, headerlen = 0, recordlen = 0, entries = 0;
- uint32_t crystal_strap_mask, crystal_straps;
-
- if (!bios->pll_limit_tbl_ptr) {
- if (cv == 0x30 || cv == 0x31 || cv == 0x35 || cv == 0x36 ||
- cv >= 0x40) {
- NV_ERROR(dev, "Pointer to PLL limits table invalid\n");
- return -EINVAL;
- }
- } else
- pll_lim_ver = bios->data[bios->pll_limit_tbl_ptr];
-
- crystal_strap_mask = 1 << 6;
- /* open coded dev->twoHeads test */
- if (cv > 0x10 && cv != 0x15 && cv != 0x1a && cv != 0x20)
- crystal_strap_mask |= 1 << 22;
- crystal_straps = nvReadEXTDEV(dev, NV_PEXTDEV_BOOT_0) &
- crystal_strap_mask;
-
- switch (pll_lim_ver) {
- /*
- * We use version 0 to indicate a pre limit table bios (single stage
- * pll) and load the hard coded limits instead.
- */
- case 0:
- break;
- case 0x10:
- case 0x11:
- /*
- * Strictly v0x11 has 3 entries, but the last two don't seem
- * to get used.
- */
- headerlen = 1;
- recordlen = 0x18;
- entries = 1;
- pllindex = 0;
- break;
- case 0x20:
- case 0x21:
- case 0x30:
- case 0x40:
- headerlen = bios->data[bios->pll_limit_tbl_ptr + 1];
- recordlen = bios->data[bios->pll_limit_tbl_ptr + 2];
- entries = bios->data[bios->pll_limit_tbl_ptr + 3];
- break;
- default:
- NV_ERROR(dev, "PLL limits table revision 0x%X not currently "
- "supported\n", pll_lim_ver);
- return -ENOSYS;
- }
-
- /* initialize all members to zero */
- memset(pll_lim, 0, sizeof(struct pll_lims));
-
- if (pll_lim_ver == 0x10 || pll_lim_ver == 0x11) {
- uint8_t *pll_rec = &bios->data[bios->pll_limit_tbl_ptr + headerlen + recordlen * pllindex];
-
- pll_lim->vco1.minfreq = ROM32(pll_rec[0]);
- pll_lim->vco1.maxfreq = ROM32(pll_rec[4]);
- pll_lim->vco2.minfreq = ROM32(pll_rec[8]);
- pll_lim->vco2.maxfreq = ROM32(pll_rec[12]);
- pll_lim->vco1.min_inputfreq = ROM32(pll_rec[16]);
- pll_lim->vco2.min_inputfreq = ROM32(pll_rec[20]);
- pll_lim->vco1.max_inputfreq = pll_lim->vco2.max_inputfreq = INT_MAX;
-
- /* these values taken from nv30/31/36 */
- pll_lim->vco1.min_n = 0x1;
- if (cv == 0x36)
- pll_lim->vco1.min_n = 0x5;
- pll_lim->vco1.max_n = 0xff;
- pll_lim->vco1.min_m = 0x1;
- pll_lim->vco1.max_m = 0xd;
- pll_lim->vco2.min_n = 0x4;
- /*
- * On nv30, 31, 36 (i.e. all cards with two stage PLLs with this
- * table version (apart from nv35)), N2 is compared to
- * maxN2 (0x46) and 10 * maxM2 (0x4), so set maxN2 to 0x28 and
- * save a comparison
- */
- pll_lim->vco2.max_n = 0x28;
- if (cv == 0x30 || cv == 0x35)
- /* only 5 bits available for N2 on nv30/35 */
- pll_lim->vco2.max_n = 0x1f;
- pll_lim->vco2.min_m = 0x1;
- pll_lim->vco2.max_m = 0x4;
- pll_lim->max_log2p = 0x7;
- pll_lim->max_usable_log2p = 0x6;
- } else if (pll_lim_ver == 0x20 || pll_lim_ver == 0x21) {
- uint16_t plloffs = bios->pll_limit_tbl_ptr + headerlen;
- uint32_t reg = 0; /* default match */
- uint8_t *pll_rec;
- int i;
-
- /*
- * First entry is default match, if nothing better. warn if
- * reg field nonzero
- */
- if (ROM32(bios->data[plloffs]))
- NV_WARN(dev, "Default PLL limit entry has non-zero "
- "register field\n");
-
- if (limit_match > MAX_PLL_TYPES)
- /* we've been passed a reg as the match */
- reg = limit_match;
- else /* limit match is a pll type */
- for (i = 1; i < entries && !reg; i++) {
- uint32_t cmpreg = ROM32(bios->data[plloffs + recordlen * i]);
-
- if (limit_match == NVPLL &&
- (cmpreg == NV_PRAMDAC_NVPLL_COEFF || cmpreg == 0x4000))
- reg = cmpreg;
- if (limit_match == MPLL &&
- (cmpreg == NV_PRAMDAC_MPLL_COEFF || cmpreg == 0x4020))
- reg = cmpreg;
- if (limit_match == VPLL1 &&
- (cmpreg == NV_PRAMDAC_VPLL_COEFF || cmpreg == 0x4010))
- reg = cmpreg;
- if (limit_match == VPLL2 &&
- (cmpreg == NV_RAMDAC_VPLL2 || cmpreg == 0x4018))
- reg = cmpreg;
- }
-
- for (i = 1; i < entries; i++)
- if (ROM32(bios->data[plloffs + recordlen * i]) == reg) {
- pllindex = i;
- break;
- }
-
- pll_rec = &bios->data[plloffs + recordlen * pllindex];
-
- BIOSLOG(bios, "Loading PLL limits for reg 0x%08x\n",
- pllindex ? reg : 0);
-
- /*
- * Frequencies are stored in tables in MHz, kHz are more
- * useful, so we convert.
- */
-
- /* What output frequencies can each VCO generate? */
- pll_lim->vco1.minfreq = ROM16(pll_rec[4]) * 1000;
- pll_lim->vco1.maxfreq = ROM16(pll_rec[6]) * 1000;
- pll_lim->vco2.minfreq = ROM16(pll_rec[8]) * 1000;
- pll_lim->vco2.maxfreq = ROM16(pll_rec[10]) * 1000;
-
- /* What input frequencies they accept (past the m-divider)? */
- pll_lim->vco1.min_inputfreq = ROM16(pll_rec[12]) * 1000;
- pll_lim->vco2.min_inputfreq = ROM16(pll_rec[14]) * 1000;
- pll_lim->vco1.max_inputfreq = ROM16(pll_rec[16]) * 1000;
- pll_lim->vco2.max_inputfreq = ROM16(pll_rec[18]) * 1000;
-
- /* What values are accepted as multiplier and divider? */
- pll_lim->vco1.min_n = pll_rec[20];
- pll_lim->vco1.max_n = pll_rec[21];
- pll_lim->vco1.min_m = pll_rec[22];
- pll_lim->vco1.max_m = pll_rec[23];
- pll_lim->vco2.min_n = pll_rec[24];
- pll_lim->vco2.max_n = pll_rec[25];
- pll_lim->vco2.min_m = pll_rec[26];
- pll_lim->vco2.max_m = pll_rec[27];
-
- pll_lim->max_usable_log2p = pll_lim->max_log2p = pll_rec[29];
- if (pll_lim->max_log2p > 0x7)
- /* pll decoding in nv_hw.c assumes never > 7 */
- NV_WARN(dev, "Max log2 P value greater than 7 (%d)\n",
- pll_lim->max_log2p);
- if (cv < 0x60)
- pll_lim->max_usable_log2p = 0x6;
- pll_lim->log2p_bias = pll_rec[30];
-
- if (recordlen > 0x22)
- pll_lim->refclk = ROM32(pll_rec[31]);
-
- if (recordlen > 0x23 && pll_rec[35])
- NV_WARN(dev,
- "Bits set in PLL configuration byte (%x)\n",
- pll_rec[35]);
-
- /* C51 special not seen elsewhere */
- if (cv == 0x51 && !pll_lim->refclk) {
- uint32_t sel_clk = bios_rd32(bios, NV_PRAMDAC_SEL_CLK);
-
- if (((limit_match == NV_PRAMDAC_VPLL_COEFF || limit_match == VPLL1) && sel_clk & 0x20) ||
- ((limit_match == NV_RAMDAC_VPLL2 || limit_match == VPLL2) && sel_clk & 0x80)) {
- if (bios_idxprt_rd(bios, NV_CIO_CRX__COLOR, NV_CIO_CRE_CHIP_ID_INDEX) < 0xa3)
- pll_lim->refclk = 200000;
- else
- pll_lim->refclk = 25000;
- }
- }
- } else if (pll_lim_ver == 0x30) { /* ver 0x30 */
- uint8_t *entry = &bios->data[bios->pll_limit_tbl_ptr + headerlen];
- uint8_t *record = NULL;
- int i;
-
- BIOSLOG(bios, "Loading PLL limits for register 0x%08x\n",
- limit_match);
-
- for (i = 0; i < entries; i++, entry += recordlen) {
- if (ROM32(entry[3]) == limit_match) {
- record = &bios->data[ROM16(entry[1])];
- break;
- }
- }
-
- if (!record) {
- NV_ERROR(dev, "Register 0x%08x not found in PLL "
- "limits table", limit_match);
- return -ENOENT;
- }
-
- pll_lim->vco1.minfreq = ROM16(record[0]) * 1000;
- pll_lim->vco1.maxfreq = ROM16(record[2]) * 1000;
- pll_lim->vco2.minfreq = ROM16(record[4]) * 1000;
- pll_lim->vco2.maxfreq = ROM16(record[6]) * 1000;
- pll_lim->vco1.min_inputfreq = ROM16(record[8]) * 1000;
- pll_lim->vco2.min_inputfreq = ROM16(record[10]) * 1000;
- pll_lim->vco1.max_inputfreq = ROM16(record[12]) * 1000;
- pll_lim->vco2.max_inputfreq = ROM16(record[14]) * 1000;
- pll_lim->vco1.min_n = record[16];
- pll_lim->vco1.max_n = record[17];
- pll_lim->vco1.min_m = record[18];
- pll_lim->vco1.max_m = record[19];
- pll_lim->vco2.min_n = record[20];
- pll_lim->vco2.max_n = record[21];
- pll_lim->vco2.min_m = record[22];
- pll_lim->vco2.max_m = record[23];
- pll_lim->max_usable_log2p = pll_lim->max_log2p = record[25];
- pll_lim->log2p_bias = record[27];
- pll_lim->refclk = ROM32(record[28]);
- } else if (pll_lim_ver) { /* ver 0x40 */
- uint8_t *entry = &bios->data[bios->pll_limit_tbl_ptr + headerlen];
- uint8_t *record = NULL;
- int i;
-
- BIOSLOG(bios, "Loading PLL limits for register 0x%08x\n",
- limit_match);
-
- for (i = 0; i < entries; i++, entry += recordlen) {
- if (ROM32(entry[3]) == limit_match) {
- record = &bios->data[ROM16(entry[1])];
- break;
- }
- }
-
- if (!record) {
- NV_ERROR(dev, "Register 0x%08x not found in PLL "
- "limits table", limit_match);
- return -ENOENT;
- }
-
- pll_lim->vco1.minfreq = ROM16(record[0]) * 1000;
- pll_lim->vco1.maxfreq = ROM16(record[2]) * 1000;
- pll_lim->vco1.min_inputfreq = ROM16(record[4]) * 1000;
- pll_lim->vco1.max_inputfreq = ROM16(record[6]) * 1000;
- pll_lim->vco1.min_m = record[8];
- pll_lim->vco1.max_m = record[9];
- pll_lim->vco1.min_n = record[10];
- pll_lim->vco1.max_n = record[11];
- pll_lim->min_p = record[12];
- pll_lim->max_p = record[13];
- /* where did this go to?? */
- if ((entry[0] & 0xf0) == 0x80)
- pll_lim->refclk = 27000;
- else
- pll_lim->refclk = 100000;
- }
-
- /*
- * By now any valid limit table ought to have set a max frequency for
- * vco1, so if it's zero it's either a pre limit table bios, or one
- * with an empty limit table (seen on nv18)
- */
- if (!pll_lim->vco1.maxfreq) {
- pll_lim->vco1.minfreq = bios->fminvco;
- pll_lim->vco1.maxfreq = bios->fmaxvco;
- pll_lim->vco1.min_inputfreq = 0;
- pll_lim->vco1.max_inputfreq = INT_MAX;
- pll_lim->vco1.min_n = 0x1;
- pll_lim->vco1.max_n = 0xff;
- pll_lim->vco1.min_m = 0x1;
- if (crystal_straps == 0) {
- /* nv05 does this, nv11 doesn't, nv10 unknown */
- if (cv < 0x11)
- pll_lim->vco1.min_m = 0x7;
- pll_lim->vco1.max_m = 0xd;
- } else {
- if (cv < 0x11)
- pll_lim->vco1.min_m = 0x8;
- pll_lim->vco1.max_m = 0xe;
- }
- if (cv < 0x17 || cv == 0x1a || cv == 0x20)
- pll_lim->max_log2p = 4;
- else
- pll_lim->max_log2p = 5;
- pll_lim->max_usable_log2p = pll_lim->max_log2p;
- }
-
- if (!pll_lim->refclk)
- switch (crystal_straps) {
- case 0:
- pll_lim->refclk = 13500;
- break;
- case (1 << 6):
- pll_lim->refclk = 14318;
- break;
- case (1 << 22):
- pll_lim->refclk = 27000;
- break;
- case (1 << 22 | 1 << 6):
- pll_lim->refclk = 25000;
- break;
- }
-
- NV_DEBUG(dev, "pll.vco1.minfreq: %d\n", pll_lim->vco1.minfreq);
- NV_DEBUG(dev, "pll.vco1.maxfreq: %d\n", pll_lim->vco1.maxfreq);
- NV_DEBUG(dev, "pll.vco1.min_inputfreq: %d\n", pll_lim->vco1.min_inputfreq);
- NV_DEBUG(dev, "pll.vco1.max_inputfreq: %d\n", pll_lim->vco1.max_inputfreq);
- NV_DEBUG(dev, "pll.vco1.min_n: %d\n", pll_lim->vco1.min_n);
- NV_DEBUG(dev, "pll.vco1.max_n: %d\n", pll_lim->vco1.max_n);
- NV_DEBUG(dev, "pll.vco1.min_m: %d\n", pll_lim->vco1.min_m);
- NV_DEBUG(dev, "pll.vco1.max_m: %d\n", pll_lim->vco1.max_m);
- if (pll_lim->vco2.maxfreq) {
- NV_DEBUG(dev, "pll.vco2.minfreq: %d\n", pll_lim->vco2.minfreq);
- NV_DEBUG(dev, "pll.vco2.maxfreq: %d\n", pll_lim->vco2.maxfreq);
- NV_DEBUG(dev, "pll.vco2.min_inputfreq: %d\n", pll_lim->vco2.min_inputfreq);
- NV_DEBUG(dev, "pll.vco2.max_inputfreq: %d\n", pll_lim->vco2.max_inputfreq);
- NV_DEBUG(dev, "pll.vco2.min_n: %d\n", pll_lim->vco2.min_n);
- NV_DEBUG(dev, "pll.vco2.max_n: %d\n", pll_lim->vco2.max_n);
- NV_DEBUG(dev, "pll.vco2.min_m: %d\n", pll_lim->vco2.min_m);
- NV_DEBUG(dev, "pll.vco2.max_m: %d\n", pll_lim->vco2.max_m);
- }
- if (!pll_lim->max_p) {
- NV_DEBUG(dev, "pll.max_log2p: %d\n", pll_lim->max_log2p);
- NV_DEBUG(dev, "pll.log2p_bias: %d\n", pll_lim->log2p_bias);
- } else {
- NV_DEBUG(dev, "pll.min_p: %d\n", pll_lim->min_p);
- NV_DEBUG(dev, "pll.max_p: %d\n", pll_lim->max_p);
- }
- NV_DEBUG(dev, "pll.refclk: %d\n", pll_lim->refclk);
-
- return 0;
-}
-
-static void parse_bios_version(struct drm_device *dev, struct nvbios *bios, uint16_t offset)
-{
- /*
- * offset + 0 (8 bits): Micro version
- * offset + 1 (8 bits): Minor version
- * offset + 2 (8 bits): Chip version
- * offset + 3 (8 bits): Major version
- */
-
- bios->major_version = bios->data[offset + 3];
- bios->chip_version = bios->data[offset + 2];
- NV_TRACE(dev, "Bios version %02x.%02x.%02x.%02x\n",
- bios->data[offset + 3], bios->data[offset + 2],
- bios->data[offset + 1], bios->data[offset]);
-}
-
-static void parse_script_table_pointers(struct nvbios *bios, uint16_t offset)
-{
- /*
- * Parses the init table segment for pointers used in script execution.
- *
- * offset + 0 (16 bits): init script tables pointer
- * offset + 2 (16 bits): macro index table pointer
- * offset + 4 (16 bits): macro table pointer
- * offset + 6 (16 bits): condition table pointer
- * offset + 8 (16 bits): io condition table pointer
- * offset + 10 (16 bits): io flag condition table pointer
- * offset + 12 (16 bits): init function table pointer
- */
-
- bios->init_script_tbls_ptr = ROM16(bios->data[offset]);
- bios->macro_index_tbl_ptr = ROM16(bios->data[offset + 2]);
- bios->macro_tbl_ptr = ROM16(bios->data[offset + 4]);
- bios->condition_tbl_ptr = ROM16(bios->data[offset + 6]);
- bios->io_condition_tbl_ptr = ROM16(bios->data[offset + 8]);
- bios->io_flag_condition_tbl_ptr = ROM16(bios->data[offset + 10]);
- bios->init_function_tbl_ptr = ROM16(bios->data[offset + 12]);
-}
-
-static int parse_bit_A_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
-{
- /*
- * Parses the load detect values for g80 cards.
- *
- * offset + 0 (16 bits): loadval table pointer
- */
-
- uint16_t load_table_ptr;
- uint8_t version, headerlen, entrylen, num_entries;
-
- if (bitentry->length != 3) {
- NV_ERROR(dev, "Do not understand BIT A table\n");
- return -EINVAL;
- }
-
- load_table_ptr = ROM16(bios->data[bitentry->offset]);
-
- if (load_table_ptr == 0x0) {
- NV_ERROR(dev, "Pointer to BIT loadval table invalid\n");
- return -EINVAL;
- }
-
- version = bios->data[load_table_ptr];
-
- if (version != 0x10) {
- NV_ERROR(dev, "BIT loadval table version %d.%d not supported\n",
- version >> 4, version & 0xF);
- return -ENOSYS;
- }
-
- headerlen = bios->data[load_table_ptr + 1];
- entrylen = bios->data[load_table_ptr + 2];
- num_entries = bios->data[load_table_ptr + 3];
-
- if (headerlen != 4 || entrylen != 4 || num_entries != 2) {
- NV_ERROR(dev, "Do not understand BIT loadval table\n");
- return -EINVAL;
- }
-
- /* First entry is normal dac, 2nd tv-out perhaps? */
- bios->dactestval = ROM32(bios->data[load_table_ptr + headerlen]) & 0x3ff;
-
- return 0;
-}
-
-static int parse_bit_C_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
-{
- /*
- * offset + 8 (16 bits): PLL limits table pointer
- *
- * There's more in here, but that's unknown.
- */
-
- if (bitentry->length < 10) {
- NV_ERROR(dev, "Do not understand BIT C table\n");
- return -EINVAL;
- }
-
- bios->pll_limit_tbl_ptr = ROM16(bios->data[bitentry->offset + 8]);
-
- return 0;
-}
-
-static int parse_bit_display_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
-{
- /*
- * Parses the flat panel table segment that the bit entry points to.
- * Starting at bitentry->offset:
- *
- * offset + 0 (16 bits): ??? table pointer - seems to have 18 byte
- * records beginning with a freq.
- * offset + 2 (16 bits): mode table pointer
- */
-
- if (bitentry->length != 4) {
- NV_ERROR(dev, "Do not understand BIT display table\n");
- return -EINVAL;
- }
-
- bios->fp.fptablepointer = ROM16(bios->data[bitentry->offset + 2]);
-
- return 0;
-}
-
-static int parse_bit_init_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
-{
- /*
- * Parses the init table segment that the bit entry points to.
- *
- * See parse_script_table_pointers for layout
- */
-
- if (bitentry->length < 14) {
- NV_ERROR(dev, "Do not understand init table\n");
- return -EINVAL;
- }
-
- parse_script_table_pointers(bios, bitentry->offset);
-
- if (bitentry->length >= 16)
- bios->some_script_ptr = ROM16(bios->data[bitentry->offset + 14]);
- if (bitentry->length >= 18)
- bios->init96_tbl_ptr = ROM16(bios->data[bitentry->offset + 16]);
-
- return 0;
-}
-
-static int parse_bit_i_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
-{
- /*
- * BIT 'i' (info?) table
- *
- * offset + 0 (32 bits): BIOS version dword (as in B table)
- * offset + 5 (8 bits): BIOS feature byte (same as for BMP?)
- * offset + 13 (16 bits): pointer to table containing DAC load
- * detection comparison values
- *
- * There's other things in the table, purpose unknown
- */
-
- uint16_t daccmpoffset;
- uint8_t dacver, dacheaderlen;
-
- if (bitentry->length < 6) {
- NV_ERROR(dev, "BIT i table too short for needed information\n");
- return -EINVAL;
- }
-
- parse_bios_version(dev, bios, bitentry->offset);
-
- /*
- * bit 4 seems to indicate a mobile bios (doesn't suffer from BMP's
- * Quadro identity crisis), other bits possibly as for BMP feature byte
- */
- bios->feature_byte = bios->data[bitentry->offset + 5];
- bios->is_mobile = bios->feature_byte & FEATURE_MOBILE;
-
- if (bitentry->length < 15) {
- NV_WARN(dev, "BIT i table not long enough for DAC load "
- "detection comparison table\n");
- return -EINVAL;
- }
-
- daccmpoffset = ROM16(bios->data[bitentry->offset + 13]);
-
- /* doesn't exist on g80 */
- if (!daccmpoffset)
- return 0;
-
- /*
- * The first value in the table, following the header, is the
- * comparison value, the second entry is a comparison value for
- * TV load detection.
- */
-
- dacver = bios->data[daccmpoffset];
- dacheaderlen = bios->data[daccmpoffset + 1];
-
- if (dacver != 0x00 && dacver != 0x10) {
- NV_WARN(dev, "DAC load detection comparison table version "
- "%d.%d not known\n", dacver >> 4, dacver & 0xf);
- return -ENOSYS;
- }
-
- bios->dactestval = ROM32(bios->data[daccmpoffset + dacheaderlen]);
- bios->tvdactestval = ROM32(bios->data[daccmpoffset + dacheaderlen + 4]);
-
- return 0;
-}
-
-static int parse_bit_lvds_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
-{
- /*
- * Parses the LVDS table segment that the bit entry points to.
- * Starting at bitentry->offset:
- *
- * offset + 0 (16 bits): LVDS strap xlate table pointer
- */
-
- if (bitentry->length != 2) {
- NV_ERROR(dev, "Do not understand BIT LVDS table\n");
- return -EINVAL;
- }
-
- /*
- * No idea if it's still called the LVDS manufacturer table, but
- * the concept's close enough.
- */
- bios->fp.lvdsmanufacturerpointer = ROM16(bios->data[bitentry->offset]);
-
- return 0;
-}
-
-static int
-parse_bit_M_tbl_entry(struct drm_device *dev, struct nvbios *bios,
- struct bit_entry *bitentry)
-{
- /*
- * offset + 2 (8 bits): number of options in an
- * INIT_RAM_RESTRICT_ZM_REG_GROUP opcode option set
- * offset + 3 (16 bits): pointer to strap xlate table for RAM
- * restrict option selection
- *
- * There's a bunch of bits in this table other than the RAM restrict
- * stuff that we don't use - their use currently unknown
- */
-
- /*
- * Older bios versions don't have a sufficiently long table for
- * what we want
- */
- if (bitentry->length < 0x5)
- return 0;
-
- if (bitentry->id[1] < 2) {
- bios->ram_restrict_group_count = bios->data[bitentry->offset + 2];
- bios->ram_restrict_tbl_ptr = ROM16(bios->data[bitentry->offset + 3]);
- } else {
- bios->ram_restrict_group_count = bios->data[bitentry->offset + 0];
- bios->ram_restrict_tbl_ptr = ROM16(bios->data[bitentry->offset + 1]);
- }
-
- return 0;
-}
-
-static int parse_bit_tmds_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
-{
- /*
- * Parses the pointer to the TMDS table
- *
- * Starting at bitentry->offset:
- *
- * offset + 0 (16 bits): TMDS table pointer
- *
- * The TMDS table is typically found just before the DCB table, with a
- * characteristic signature of 0x11,0x13 (1.1 being version, 0x13 being
- * length?)
- *
- * At offset +7 is a pointer to a script, which I don't know how to
- * run yet.
- * At offset +9 is a pointer to another script, likewise
- * Offset +11 has a pointer to a table where the first word is a pxclk
- * frequency and the second word a pointer to a script, which should be
- * run if the comparison pxclk frequency is less than the pxclk desired.
- * This repeats for decreasing comparison frequencies
- * Offset +13 has a pointer to a similar table
- * The selection of table (and possibly +7/+9 script) is dictated by
- * "or" from the DCB.
- */
-
- uint16_t tmdstableptr, script1, script2;
-
- if (bitentry->length != 2) {
- NV_ERROR(dev, "Do not understand BIT TMDS table\n");
- return -EINVAL;
- }
-
- tmdstableptr = ROM16(bios->data[bitentry->offset]);
- if (!tmdstableptr) {
- NV_ERROR(dev, "Pointer to TMDS table invalid\n");
- return -EINVAL;
- }
-
- NV_INFO(dev, "TMDS table version %d.%d\n",
- bios->data[tmdstableptr] >> 4, bios->data[tmdstableptr] & 0xf);
-
- /* nv50+ has v2.0, but we don't parse it atm */
- if (bios->data[tmdstableptr] != 0x11)
- return -ENOSYS;
-
- /*
- * These two scripts are odd: they don't seem to get run even when
- * they are not stubbed.
- */
- script1 = ROM16(bios->data[tmdstableptr + 7]);
- script2 = ROM16(bios->data[tmdstableptr + 9]);
- if (bios->data[script1] != 'q' || bios->data[script2] != 'q')
- NV_WARN(dev, "TMDS table script pointers not stubbed\n");
-
- bios->tmds.output0_script_ptr = ROM16(bios->data[tmdstableptr + 11]);
- bios->tmds.output1_script_ptr = ROM16(bios->data[tmdstableptr + 13]);
-
- return 0;
-}
-
-static int
-parse_bit_U_tbl_entry(struct drm_device *dev, struct nvbios *bios,
- struct bit_entry *bitentry)
-{
- /*
- * Parses the pointer to the G80 output script tables
- *
- * Starting at bitentry->offset:
- *
- * offset + 0 (16 bits): output script table pointer
- */
-
- uint16_t outputscripttableptr;
-
- if (bitentry->length != 3) {
- NV_ERROR(dev, "Do not understand BIT U table\n");
- return -EINVAL;
- }
-
- outputscripttableptr = ROM16(bios->data[bitentry->offset]);
- bios->display.script_table_ptr = outputscripttableptr;
- return 0;
-}
-
-static int
-parse_bit_displayport_tbl_entry(struct drm_device *dev, struct nvbios *bios,
- struct bit_entry *bitentry)
-{
- bios->display.dp_table_ptr = ROM16(bios->data[bitentry->offset]);
- return 0;
-}
-
-struct bit_table {
- const char id;
- int (* const parse_fn)(struct drm_device *, struct nvbios *, struct bit_entry *);
-};
-
-#define BIT_TABLE(id, funcid) ((struct bit_table){ id, parse_bit_##funcid##_tbl_entry })
-
-static int
-parse_bit_table(struct nvbios *bios, const uint16_t bitoffset,
- struct bit_table *table)
-{
- struct drm_device *dev = bios->dev;
- uint8_t maxentries = bios->data[bitoffset + 4];
- int i, offset;
- struct bit_entry bitentry;
-
- for (i = 0, offset = bitoffset + 6; i < maxentries; i++, offset += 6) {
- bitentry.id[0] = bios->data[offset];
-
- if (bitentry.id[0] != table->id)
- continue;
-
- bitentry.id[1] = bios->data[offset + 1];
- bitentry.length = ROM16(bios->data[offset + 2]);
- bitentry.offset = ROM16(bios->data[offset + 4]);
-
- return table->parse_fn(dev, bios, &bitentry);
- }
-
- NV_INFO(dev, "BIT table '%c' not found\n", table->id);
- return -ENOSYS;
-}
-
-static int
-parse_bit_structure(struct nvbios *bios, const uint16_t bitoffset)
-{
- int ret;
-
- /*
- * The only restriction on parsing order currently is having 'i' first
- * for use of bios->*_version or bios->feature_byte while parsing;
- * functions shouldn't be actually *doing* anything apart from pulling
- * data from the image into the bios struct, thus no interdependencies
- */
- ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('i', i));
- if (ret) /* info? */
- return ret;
- if (bios->major_version >= 0x60) /* g80+ */
- parse_bit_table(bios, bitoffset, &BIT_TABLE('A', A));
- ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('C', C));
- if (ret)
- return ret;
- parse_bit_table(bios, bitoffset, &BIT_TABLE('D', display));
- ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('I', init));
- if (ret)
- return ret;
- parse_bit_table(bios, bitoffset, &BIT_TABLE('M', M)); /* memory? */
- parse_bit_table(bios, bitoffset, &BIT_TABLE('L', lvds));
- parse_bit_table(bios, bitoffset, &BIT_TABLE('T', tmds));
- parse_bit_table(bios, bitoffset, &BIT_TABLE('U', U));
- parse_bit_table(bios, bitoffset, &BIT_TABLE('d', displayport));
-
- return 0;
-}
-
-static int parse_bmp_structure(struct drm_device *dev, struct nvbios *bios, unsigned int offset)
-{
- /*
- * Parses the BMP structure for useful things, but does not act on them
- *
- * offset + 5: BMP major version
- * offset + 6: BMP minor version
- * offset + 9: BMP feature byte
- * offset + 10: BCD encoded BIOS version
- *
- * offset + 18: init script table pointer (for bios versions < 5.10h)
- * offset + 20: extra init script table pointer (for bios
- * versions < 5.10h)
- *
- * offset + 24: memory init table pointer (used on early bios versions)
- * offset + 26: SDR memory sequencing setup data table
- * offset + 28: DDR memory sequencing setup data table
- *
- * offset + 54: index of I2C CRTC pair to use for CRT output
- * offset + 55: index of I2C CRTC pair to use for TV output
- * offset + 56: index of I2C CRTC pair to use for flat panel output
- * offset + 58: write CRTC index for I2C pair 0
- * offset + 59: read CRTC index for I2C pair 0
- * offset + 60: write CRTC index for I2C pair 1
- * offset + 61: read CRTC index for I2C pair 1
- *
- * offset + 67: maximum internal PLL frequency (single stage PLL)
- * offset + 71: minimum internal PLL frequency (single stage PLL)
- *
- * offset + 75: script table pointers, as described in
- * parse_script_table_pointers
- *
- * offset + 89: TMDS single link output A table pointer
- * offset + 91: TMDS single link output B table pointer
- * offset + 95: LVDS single link output A table pointer
- * offset + 105: flat panel timings table pointer
- * offset + 107: flat panel strapping translation table pointer
- * offset + 117: LVDS manufacturer panel config table pointer
- * offset + 119: LVDS manufacturer strapping translation table pointer
- *
- * offset + 142: PLL limits table pointer
- *
- * offset + 156: minimum pixel clock for LVDS dual link
- */
-
- uint8_t *bmp = &bios->data[offset], bmp_version_major, bmp_version_minor;
- uint16_t bmplength;
- uint16_t legacy_scripts_offset, legacy_i2c_offset;
-
- /* load needed defaults in case we can't parse this info */
- bios->dcb.i2c[0].write = NV_CIO_CRE_DDC_WR__INDEX;
- bios->dcb.i2c[0].read = NV_CIO_CRE_DDC_STATUS__INDEX;
- bios->dcb.i2c[1].write = NV_CIO_CRE_DDC0_WR__INDEX;
- bios->dcb.i2c[1].read = NV_CIO_CRE_DDC0_STATUS__INDEX;
- bios->digital_min_front_porch = 0x4b;
- bios->fmaxvco = 256000;
- bios->fminvco = 128000;
- bios->fp.duallink_transition_clk = 90000;
-
- bmp_version_major = bmp[5];
- bmp_version_minor = bmp[6];
-
- NV_TRACE(dev, "BMP version %d.%d\n",
- bmp_version_major, bmp_version_minor);
-
- /*
- * Make sure that 0x36 is blank and can't be mistaken for a DCB
- * pointer on early versions
- */
- if (bmp_version_major < 5)
- *(uint16_t *)&bios->data[0x36] = 0;
-
- /*
- * Seems that the minor version was 1 for all major versions prior
- * to 5. Version 6 could theoretically exist, but I suspect BIT
- * happened instead.
- */
- if ((bmp_version_major < 5 && bmp_version_minor != 1) || bmp_version_major > 5) {
- NV_ERROR(dev, "You have an unsupported BMP version. "
- "Please send in your bios\n");
- return -ENOSYS;
- }
-
- if (bmp_version_major == 0)
- /* nothing that's currently useful in this version */
- return 0;
- else if (bmp_version_major == 1)
- bmplength = 44; /* exact for 1.01 */
- else if (bmp_version_major == 2)
- bmplength = 48; /* exact for 2.01 */
- else if (bmp_version_major == 3)
- bmplength = 54;
- /* guessed - mem init tables added in this version */
- else if (bmp_version_major == 4 || bmp_version_minor < 0x1)
- /* don't know if 5.0 exists... */
- bmplength = 62;
- /* guessed - BMP I2C indices added in version 4*/
- else if (bmp_version_minor < 0x6)
- bmplength = 67; /* exact for 5.01 */
- else if (bmp_version_minor < 0x10)
- bmplength = 75; /* exact for 5.06 */
- else if (bmp_version_minor == 0x10)
- bmplength = 89; /* exact for 5.10h */
- else if (bmp_version_minor < 0x14)
- bmplength = 118; /* exact for 5.11h */
- else if (bmp_version_minor < 0x24)
- /*
- * Not sure of version where pll limits came in;
- * certainly exist by 0x24 though.
- */
- /* length not exact: this is long enough to get lvds members */
- bmplength = 123;
- else if (bmp_version_minor < 0x27)
- /*
- * Length not exact: this is long enough to get pll limit
- * member
- */
- bmplength = 144;
- else
- /*
- * Length not exact: this is long enough to get dual link
- * transition clock.
- */
- bmplength = 158;
-
- /* checksum */
- if (nv_cksum(bmp, 8)) {
- NV_ERROR(dev, "Bad BMP checksum\n");
- return -EINVAL;
- }
-
- /*
- * Bit 4 seems to indicate either a mobile bios or a quadro card --
- * mobile behaviour consistent (nv11+), quadro only seen nv18gl-nv36gl
- * (not nv10gl), bit 5 that the flat panel tables are present, and
- * bit 6 a tv bios.
- */
- bios->feature_byte = bmp[9];
-
- parse_bios_version(dev, bios, offset + 10);
-
- if (bmp_version_major < 5 || bmp_version_minor < 0x10)
- bios->old_style_init = true;
- legacy_scripts_offset = 18;
- if (bmp_version_major < 2)
- legacy_scripts_offset -= 4;
- bios->init_script_tbls_ptr = ROM16(bmp[legacy_scripts_offset]);
- bios->extra_init_script_tbl_ptr = ROM16(bmp[legacy_scripts_offset + 2]);
-
- if (bmp_version_major > 2) { /* appears in BMP 3 */
- bios->legacy.mem_init_tbl_ptr = ROM16(bmp[24]);
- bios->legacy.sdr_seq_tbl_ptr = ROM16(bmp[26]);
- bios->legacy.ddr_seq_tbl_ptr = ROM16(bmp[28]);
- }
-
- legacy_i2c_offset = 0x48; /* BMP version 2 & 3 */
- if (bmplength > 61)
- legacy_i2c_offset = offset + 54;
- bios->legacy.i2c_indices.crt = bios->data[legacy_i2c_offset];
- bios->legacy.i2c_indices.tv = bios->data[legacy_i2c_offset + 1];
- bios->legacy.i2c_indices.panel = bios->data[legacy_i2c_offset + 2];
- if (bios->data[legacy_i2c_offset + 4])
- bios->dcb.i2c[0].write = bios->data[legacy_i2c_offset + 4];
- if (bios->data[legacy_i2c_offset + 5])
- bios->dcb.i2c[0].read = bios->data[legacy_i2c_offset + 5];
- if (bios->data[legacy_i2c_offset + 6])
- bios->dcb.i2c[1].write = bios->data[legacy_i2c_offset + 6];
- if (bios->data[legacy_i2c_offset + 7])
- bios->dcb.i2c[1].read = bios->data[legacy_i2c_offset + 7];
-
- if (bmplength > 74) {
- bios->fmaxvco = ROM32(bmp[67]);
- bios->fminvco = ROM32(bmp[71]);
- }
- if (bmplength > 88)
- parse_script_table_pointers(bios, offset + 75);
- if (bmplength > 94) {
- bios->tmds.output0_script_ptr = ROM16(bmp[89]);
- bios->tmds.output1_script_ptr = ROM16(bmp[91]);
- /*
- * Never observed in use with lvds scripts, but is reused for
- * 18/24 bit panel interface default for EDID equipped panels
- * (if_is_24bit not set directly to avoid any oscillation).
- */
- bios->legacy.lvds_single_a_script_ptr = ROM16(bmp[95]);
- }
- if (bmplength > 108) {
- bios->fp.fptablepointer = ROM16(bmp[105]);
- bios->fp.fpxlatetableptr = ROM16(bmp[107]);
- bios->fp.xlatwidth = 1;
- }
- if (bmplength > 120) {
- bios->fp.lvdsmanufacturerpointer = ROM16(bmp[117]);
- bios->fp.fpxlatemanufacturertableptr = ROM16(bmp[119]);
- }
- if (bmplength > 143)
- bios->pll_limit_tbl_ptr = ROM16(bmp[142]);
-
- if (bmplength > 157)
- bios->fp.duallink_transition_clk = ROM16(bmp[156]) * 10;
-
- return 0;
-}
-
-static uint16_t findstr(uint8_t *data, int n, const uint8_t *str, int len)
-{
- int i, j;
-
- for (i = 0; i <= (n - len); i++) {
- for (j = 0; j < len; j++)
- if (data[i + j] != str[j])
- break;
- if (j == len)
- return i;
- }
-
- return 0;
-}
-
-static struct dcb_gpio_entry *
-new_gpio_entry(struct nvbios *bios)
-{
- struct dcb_gpio_table *gpio = &bios->dcb.gpio;
-
- return &gpio->entry[gpio->entries++];
-}
-
-struct dcb_gpio_entry *
-nouveau_bios_gpio_entry(struct drm_device *dev, enum dcb_gpio_tag tag)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- int i;
-
- for (i = 0; i < bios->dcb.gpio.entries; i++) {
- if (bios->dcb.gpio.entry[i].tag != tag)
- continue;
-
- return &bios->dcb.gpio.entry[i];
- }
-
- return NULL;
-}
-
-static void
-parse_dcb30_gpio_entry(struct nvbios *bios, uint16_t offset)
-{
- struct dcb_gpio_entry *gpio;
- uint16_t ent = ROM16(bios->data[offset]);
- uint8_t line = ent & 0x1f,
- tag = ent >> 5 & 0x3f,
- flags = ent >> 11 & 0x1f;
-
- if (tag == 0x3f)
- return;
-
- gpio = new_gpio_entry(bios);
-
- gpio->tag = tag;
- gpio->line = line;
- gpio->invert = flags != 4;
- gpio->entry = ent;
-}
-
-static void
-parse_dcb40_gpio_entry(struct nvbios *bios, uint16_t offset)
-{
- uint32_t entry = ROM32(bios->data[offset]);
- struct dcb_gpio_entry *gpio;
-
- if ((entry & 0x0000ff00) == 0x0000ff00)
- return;
-
- gpio = new_gpio_entry(bios);
- gpio->tag = (entry & 0x0000ff00) >> 8;
- gpio->line = (entry & 0x0000001f) >> 0;
- gpio->state_default = (entry & 0x01000000) >> 24;
- gpio->state[0] = (entry & 0x18000000) >> 27;
- gpio->state[1] = (entry & 0x60000000) >> 29;
- gpio->entry = entry;
-}
-
-static void
-parse_dcb_gpio_table(struct nvbios *bios)
-{
- struct drm_device *dev = bios->dev;
- uint16_t gpio_table_ptr = bios->dcb.gpio_table_ptr;
- uint8_t *gpio_table = &bios->data[gpio_table_ptr];
- int header_len = gpio_table[1],
- entries = gpio_table[2],
- entry_len = gpio_table[3];
- void (*parse_entry)(struct nvbios *, uint16_t) = NULL;
- int i;
-
- if (bios->dcb.version >= 0x40) {
- if (gpio_table_ptr && entry_len != 4) {
- NV_WARN(dev, "Invalid DCB GPIO table entry length.\n");
- return;
- }
-
- parse_entry = parse_dcb40_gpio_entry;
-
- } else if (bios->dcb.version >= 0x30) {
- if (gpio_table_ptr && entry_len != 2) {
- NV_WARN(dev, "Invalid DCB GPIO table entry length.\n");
- return;
- }
-
- parse_entry = parse_dcb30_gpio_entry;
-
- } else if (bios->dcb.version >= 0x22) {
- /*
- * DCBs older than v3.0 don't really have a GPIO
- * table, instead they keep some GPIO info at fixed
- * locations.
- */
- uint16_t dcbptr = ROM16(bios->data[0x36]);
- uint8_t *tvdac_gpio = &bios->data[dcbptr - 5];
-
- if (tvdac_gpio[0] & 1) {
- struct dcb_gpio_entry *gpio = new_gpio_entry(bios);
-
- gpio->tag = DCB_GPIO_TVDAC0;
- gpio->line = tvdac_gpio[1] >> 4;
- gpio->invert = tvdac_gpio[0] & 2;
- }
- } else {
- /*
- * No systematic way to store GPIO info on pre-v2.2
- * DCBs, try to match the PCI device IDs.
- */
-
- /* Apple iMac G4 NV18 */
- if (nv_match_device(dev, 0x0189, 0x10de, 0x0010)) {
- struct dcb_gpio_entry *gpio = new_gpio_entry(bios);
-
- gpio->tag = DCB_GPIO_TVDAC0;
- gpio->line = 4;
- }
-
- }
-
- if (!gpio_table_ptr)
- return;
-
- if (entries > DCB_MAX_NUM_GPIO_ENTRIES) {
- NV_WARN(dev, "Too many entries in the DCB GPIO table.\n");
- entries = DCB_MAX_NUM_GPIO_ENTRIES;
- }
-
- for (i = 0; i < entries; i++)
- parse_entry(bios, gpio_table_ptr + header_len + entry_len * i);
-}
-
-struct dcb_connector_table_entry *
-nouveau_bios_connector_entry(struct drm_device *dev, int index)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- struct dcb_connector_table_entry *cte;
-
- if (index >= bios->dcb.connector.entries)
- return NULL;
-
- cte = &bios->dcb.connector.entry[index];
- if (cte->type == 0xff)
- return NULL;
-
- return cte;
-}
-
-static enum dcb_connector_type
-divine_connector_type(struct nvbios *bios, int index)
-{
- struct dcb_table *dcb = &bios->dcb;
- unsigned encoders = 0, type = DCB_CONNECTOR_NONE;
- int i;
-
- for (i = 0; i < dcb->entries; i++) {
- if (dcb->entry[i].connector == index)
- encoders |= (1 << dcb->entry[i].type);
- }
-
- if (encoders & (1 << OUTPUT_DP)) {
- if (encoders & (1 << OUTPUT_TMDS))
- type = DCB_CONNECTOR_DP;
- else
- type = DCB_CONNECTOR_eDP;
- } else
- if (encoders & (1 << OUTPUT_TMDS)) {
- if (encoders & (1 << OUTPUT_ANALOG))
- type = DCB_CONNECTOR_DVI_I;
- else
- type = DCB_CONNECTOR_DVI_D;
- } else
- if (encoders & (1 << OUTPUT_ANALOG)) {
- type = DCB_CONNECTOR_VGA;
- } else
- if (encoders & (1 << OUTPUT_LVDS)) {
- type = DCB_CONNECTOR_LVDS;
- } else
- if (encoders & (1 << OUTPUT_TV)) {
- type = DCB_CONNECTOR_TV_0;
- }
-
- return type;
-}
-
-static void
-apply_dcb_connector_quirks(struct nvbios *bios, int idx)
-{
- struct dcb_connector_table_entry *cte = &bios->dcb.connector.entry[idx];
- struct drm_device *dev = bios->dev;
-
- /* Gigabyte NX85T */
- if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
- if (cte->type == DCB_CONNECTOR_HDMI_1)
- cte->type = DCB_CONNECTOR_DVI_I;
- }
-}
-
-static void
-parse_dcb_connector_table(struct nvbios *bios)
-{
- struct drm_device *dev = bios->dev;
- struct dcb_connector_table *ct = &bios->dcb.connector;
- struct dcb_connector_table_entry *cte;
- uint8_t *conntab = &bios->data[bios->dcb.connector_table_ptr];
- uint8_t *entry;
- int i;
-
- if (!bios->dcb.connector_table_ptr) {
- NV_DEBUG_KMS(dev, "No DCB connector table present\n");
- return;
- }
-
- NV_INFO(dev, "DCB connector table: VHER 0x%02x %d %d %d\n",
- conntab[0], conntab[1], conntab[2], conntab[3]);
- if ((conntab[0] != 0x30 && conntab[0] != 0x40) ||
- (conntab[3] != 2 && conntab[3] != 4)) {
- NV_ERROR(dev, " Unknown! Please report.\n");
- return;
- }
-
- ct->entries = conntab[2];
-
- entry = conntab + conntab[1];
- cte = &ct->entry[0];
- for (i = 0; i < conntab[2]; i++, entry += conntab[3], cte++) {
- cte->index = i;
- if (conntab[3] == 2)
- cte->entry = ROM16(entry[0]);
- else
- cte->entry = ROM32(entry[0]);
-
- cte->type = (cte->entry & 0x000000ff) >> 0;
- cte->index2 = (cte->entry & 0x00000f00) >> 8;
- switch (cte->entry & 0x00033000) {
- case 0x00001000:
- cte->gpio_tag = 0x07;
- break;
- case 0x00002000:
- cte->gpio_tag = 0x08;
- break;
- case 0x00010000:
- cte->gpio_tag = 0x51;
- break;
- case 0x00020000:
- cte->gpio_tag = 0x52;
- break;
- default:
- cte->gpio_tag = 0xff;
- break;
- }
-
- if (cte->type == 0xff)
- continue;
-
- apply_dcb_connector_quirks(bios, i);
-
- NV_INFO(dev, " %d: 0x%08x: type 0x%02x idx %d tag 0x%02x\n",
- i, cte->entry, cte->type, cte->index, cte->gpio_tag);
-
- /* check for known types, fallback to guessing the type
- * from attached encoders if we hit an unknown.
- */
- switch (cte->type) {
- case DCB_CONNECTOR_VGA:
- case DCB_CONNECTOR_TV_0:
- case DCB_CONNECTOR_TV_1:
- case DCB_CONNECTOR_TV_3:
- case DCB_CONNECTOR_DVI_I:
- case DCB_CONNECTOR_DVI_D:
- case DCB_CONNECTOR_LVDS:
- case DCB_CONNECTOR_DP:
- case DCB_CONNECTOR_eDP:
- case DCB_CONNECTOR_HDMI_0:
- case DCB_CONNECTOR_HDMI_1:
- break;
- default:
- cte->type = divine_connector_type(bios, cte->index);
- NV_WARN(dev, "unknown type, using 0x%02x\n", cte->type);
- break;
- }
-
- if (nouveau_override_conntype) {
- int type = divine_connector_type(bios, cte->index);
- if (type != cte->type)
- NV_WARN(dev, " -> type 0x%02x\n", cte->type);
- }
-
- }
-}
-
-static struct dcb_entry *new_dcb_entry(struct dcb_table *dcb)
-{
- struct dcb_entry *entry = &dcb->entry[dcb->entries];
-
- memset(entry, 0, sizeof(struct dcb_entry));
- entry->index = dcb->entries++;
-
- return entry;
-}
-
-static void fabricate_vga_output(struct dcb_table *dcb, int i2c, int heads)
-{
- struct dcb_entry *entry = new_dcb_entry(dcb);
-
- entry->type = 0;
- entry->i2c_index = i2c;
- entry->heads = heads;
- entry->location = DCB_LOC_ON_CHIP;
- entry->or = 1;
-}
-
-static void fabricate_dvi_i_output(struct dcb_table *dcb, bool twoHeads)
-{
- struct dcb_entry *entry = new_dcb_entry(dcb);
-
- entry->type = 2;
- entry->i2c_index = LEGACY_I2C_PANEL;
- entry->heads = twoHeads ? 3 : 1;
- entry->location = !DCB_LOC_ON_CHIP; /* ie OFF CHIP */
- entry->or = 1; /* means |0x10 gets set on CRE_LCD__INDEX */
- entry->duallink_possible = false; /* SiI164 and co. are single link */
-
-#if 0
- /*
- * For dvi-a either crtc probably works, but my card appears to only
- * support dvi-d. "nvidia" still attempts to program it for dvi-a,
- * doing the full fp output setup (program 0x6808.. fp dimension regs,
- * setting 0x680848 to 0x10000111 to enable, maybe setting 0x680880);
- * the monitor picks up the mode res ok and lights up, but no pixel
- * data appears, so the board manufacturer probably connected up the
- * sync lines, but missed the video traces / components
- *
- * with this introduction, dvi-a left as an exercise for the reader.
- */
- fabricate_vga_output(dcb, LEGACY_I2C_PANEL, entry->heads);
-#endif
-}
-
-static void fabricate_tv_output(struct dcb_table *dcb, bool twoHeads)
-{
- struct dcb_entry *entry = new_dcb_entry(dcb);
-
- entry->type = 1;
- entry->i2c_index = LEGACY_I2C_TV;
- entry->heads = twoHeads ? 3 : 1;
- entry->location = !DCB_LOC_ON_CHIP; /* ie OFF CHIP */
-}
-
-static bool
-parse_dcb20_entry(struct drm_device *dev, struct dcb_table *dcb,
- uint32_t conn, uint32_t conf, struct dcb_entry *entry)
-{
- entry->type = conn & 0xf;
- entry->i2c_index = (conn >> 4) & 0xf;
- entry->heads = (conn >> 8) & 0xf;
- if (dcb->version >= 0x40)
- entry->connector = (conn >> 12) & 0xf;
- entry->bus = (conn >> 16) & 0xf;
- entry->location = (conn >> 20) & 0x3;
- entry->or = (conn >> 24) & 0xf;
-
- switch (entry->type) {
- case OUTPUT_ANALOG:
- /*
- * Although the rest of a CRT conf dword is usually
- * zeros, mac biosen have stuff there so we must mask
- */
- entry->crtconf.maxfreq = (dcb->version < 0x30) ?
- (conf & 0xffff) * 10 :
- (conf & 0xff) * 10000;
- break;
- case OUTPUT_LVDS:
- {
- uint32_t mask;
- if (conf & 0x1)
- entry->lvdsconf.use_straps_for_mode = true;
- if (dcb->version < 0x22) {
- mask = ~0xd;
- /*
- * The laptop in bug 14567 lies and claims to not use
- * straps when it does, so assume all DCB 2.0 laptops
- * use straps, until a broken EDID using one is produced
- */
- entry->lvdsconf.use_straps_for_mode = true;
- /*
- * Both 0x4 and 0x8 show up in v2.0 tables; assume they
- * mean the same thing (probably wrong, but might work)
- */
- if (conf & 0x4 || conf & 0x8)
- entry->lvdsconf.use_power_scripts = true;
- } else {
- mask = ~0x7;
- if (conf & 0x2)
- entry->lvdsconf.use_acpi_for_edid = true;
- if (conf & 0x4)
- entry->lvdsconf.use_power_scripts = true;
- entry->lvdsconf.sor.link = (conf & 0x00000030) >> 4;
- }
- if (conf & mask) {
- /*
- * Until we even try to use these on G8x, it's
- * useless reporting unknown bits. They all are.
- */
- if (dcb->version >= 0x40)
- break;
-
- NV_ERROR(dev, "Unknown LVDS configuration bits, "
- "please report\n");
- }
- break;
- }
- case OUTPUT_TV:
- {
- if (dcb->version >= 0x30)
- entry->tvconf.has_component_output = conf & (0x8 << 4);
- else
- entry->tvconf.has_component_output = false;
-
- break;
- }
- case OUTPUT_DP:
- entry->dpconf.sor.link = (conf & 0x00000030) >> 4;
- entry->dpconf.link_bw = (conf & 0x00e00000) >> 21;
- switch ((conf & 0x0f000000) >> 24) {
- case 0xf:
- entry->dpconf.link_nr = 4;
- break;
- case 0x3:
- entry->dpconf.link_nr = 2;
- break;
- default:
- entry->dpconf.link_nr = 1;
- break;
- }
- break;
- case OUTPUT_TMDS:
- if (dcb->version >= 0x40)
- entry->tmdsconf.sor.link = (conf & 0x00000030) >> 4;
- else if (dcb->version >= 0x30)
- entry->tmdsconf.slave_addr = (conf & 0x00000700) >> 8;
- else if (dcb->version >= 0x22)
- entry->tmdsconf.slave_addr = (conf & 0x00000070) >> 4;
-
- break;
- case OUTPUT_EOL:
- /* weird g80 mobile type that "nv" treats as a terminator */
- dcb->entries--;
- return false;
- default:
- break;
- }
-
- if (dcb->version < 0x40) {
- /* Normal entries consist of a single bit, but dual link has
- * the next most significant bit set too
- */
- entry->duallink_possible =
- ((1 << (ffs(entry->or) - 1)) * 3 == entry->or);
- } else {
- entry->duallink_possible = (entry->sorconf.link == 3);
- }
-
- /* unsure what DCB version introduces this, 3.0? */
- if (conf & 0x100000)
- entry->i2c_upper_default = true;
-
- return true;
-}
-
-static bool
-parse_dcb15_entry(struct drm_device *dev, struct dcb_table *dcb,
- uint32_t conn, uint32_t conf, struct dcb_entry *entry)
-{
- switch (conn & 0x0000000f) {
- case 0:
- entry->type = OUTPUT_ANALOG;
- break;
- case 1:
- entry->type = OUTPUT_TV;
- break;
- case 2:
- case 4:
- if (conn & 0x10)
- entry->type = OUTPUT_LVDS;
- else
- entry->type = OUTPUT_TMDS;
- break;
- case 3:
- entry->type = OUTPUT_LVDS;
- break;
- default:
- NV_ERROR(dev, "Unknown DCB type %d\n", conn & 0x0000000f);
- return false;
- }
-
- entry->i2c_index = (conn & 0x0003c000) >> 14;
- entry->heads = ((conn & 0x001c0000) >> 18) + 1;
- entry->or = entry->heads; /* same as heads, hopefully safe enough */
- entry->location = (conn & 0x01e00000) >> 21;
- entry->bus = (conn & 0x0e000000) >> 25;
- entry->duallink_possible = false;
-
- switch (entry->type) {
- case OUTPUT_ANALOG:
- entry->crtconf.maxfreq = (conf & 0xffff) * 10;
- break;
- case OUTPUT_TV:
- entry->tvconf.has_component_output = false;
- break;
- case OUTPUT_LVDS:
- if ((conn & 0x00003f00) != 0x10)
- entry->lvdsconf.use_straps_for_mode = true;
- entry->lvdsconf.use_power_scripts = true;
- break;
- default:
- break;
- }
-
- return true;
-}
-
-static bool parse_dcb_entry(struct drm_device *dev, struct dcb_table *dcb,
- uint32_t conn, uint32_t conf)
-{
- struct dcb_entry *entry = new_dcb_entry(dcb);
- bool ret;
-
- if (dcb->version >= 0x20)
- ret = parse_dcb20_entry(dev, dcb, conn, conf, entry);
- else
- ret = parse_dcb15_entry(dev, dcb, conn, conf, entry);
- if (!ret)
- return ret;
-
- read_dcb_i2c_entry(dev, dcb->version, dcb->i2c_table,
- entry->i2c_index, &dcb->i2c[entry->i2c_index]);
-
- return true;
-}
-
-static
-void merge_like_dcb_entries(struct drm_device *dev, struct dcb_table *dcb)
-{
- /*
- * DCB v2.0 lists each output combination separately.
- * Here we merge compatible entries to have fewer outputs, with
- * more options
- */
-
- int i, newentries = 0;
-
- for (i = 0; i < dcb->entries; i++) {
- struct dcb_entry *ient = &dcb->entry[i];
- int j;
-
- for (j = i + 1; j < dcb->entries; j++) {
- struct dcb_entry *jent = &dcb->entry[j];
-
- if (jent->type == 100) /* already merged entry */
- continue;
-
- /* merge heads field when all other fields the same */
- if (jent->i2c_index == ient->i2c_index &&
- jent->type == ient->type &&
- jent->location == ient->location &&
- jent->or == ient->or) {
- NV_TRACE(dev, "Merging DCB entries %d and %d\n",
- i, j);
- ient->heads |= jent->heads;
- jent->type = 100; /* dummy value */
- }
- }
- }
-
- /* Compact entries merged into others out of dcb */
- for (i = 0; i < dcb->entries; i++) {
- if (dcb->entry[i].type == 100)
- continue;
-
- if (newentries != i) {
- dcb->entry[newentries] = dcb->entry[i];
- dcb->entry[newentries].index = newentries;
- }
- newentries++;
- }
-
- dcb->entries = newentries;
-}
-
-static bool
-apply_dcb_encoder_quirks(struct drm_device *dev, int idx, u32 *conn, u32 *conf)
-{
- /* Dell Precision M6300
- * DCB entry 2: 02025312 00000010
- * DCB entry 3: 02026312 00000020
- *
- * Identical, except apparently a different connector on a
- * different SOR link. Not a clue how we're supposed to know
- * which one is in use if it even shares an i2c line...
- *
- * Ignore the connector on the second SOR link to prevent
- * nasty problems until this is sorted (assuming it's not a
- * VBIOS bug).
- */
- if (nv_match_device(dev, 0x040d, 0x1028, 0x019b)) {
- if (*conn == 0x02026312 && *conf == 0x00000020)
- return false;
- }
-
- return true;
-}
-
-static int
-parse_dcb_table(struct drm_device *dev, struct nvbios *bios, bool twoHeads)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct dcb_table *dcb = &bios->dcb;
- uint16_t dcbptr = 0, i2ctabptr = 0;
- uint8_t *dcbtable;
- uint8_t headerlen = 0x4, entries = DCB_MAX_NUM_ENTRIES;
- bool configblock = true;
- int recordlength = 8, confofs = 4;
- int i;
-
- /* get the offset from 0x36 */
- if (dev_priv->card_type > NV_04) {
- dcbptr = ROM16(bios->data[0x36]);
- if (dcbptr == 0x0000)
- NV_WARN(dev, "No output data (DCB) found in BIOS\n");
- }
-
- /* this situation likely means a really old card, pre DCB */
- if (dcbptr == 0x0) {
- NV_INFO(dev, "Assuming a CRT output exists\n");
- fabricate_vga_output(dcb, LEGACY_I2C_CRT, 1);
-
- if (nv04_tv_identify(dev, bios->legacy.i2c_indices.tv) >= 0)
- fabricate_tv_output(dcb, twoHeads);
-
- return 0;
- }
-
- dcbtable = &bios->data[dcbptr];
-
- /* get DCB version */
- dcb->version = dcbtable[0];
- NV_TRACE(dev, "Found Display Configuration Block version %d.%d\n",
- dcb->version >> 4, dcb->version & 0xf);
-
- if (dcb->version >= 0x20) { /* NV17+ */
- uint32_t sig;
-
- if (dcb->version >= 0x30) { /* NV40+ */
- headerlen = dcbtable[1];
- entries = dcbtable[2];
- recordlength = dcbtable[3];
- i2ctabptr = ROM16(dcbtable[4]);
- sig = ROM32(dcbtable[6]);
- dcb->gpio_table_ptr = ROM16(dcbtable[10]);
- dcb->connector_table_ptr = ROM16(dcbtable[20]);
- } else {
- i2ctabptr = ROM16(dcbtable[2]);
- sig = ROM32(dcbtable[4]);
- headerlen = 8;
- }
-
- if (sig != 0x4edcbdcb) {
- NV_ERROR(dev, "Bad Display Configuration Block "
- "signature (%08X)\n", sig);
- return -EINVAL;
- }
- } else if (dcb->version >= 0x15) { /* some NV11 and NV20 */
- char sig[8] = { 0 };
-
- strncpy(sig, (char *)&dcbtable[-7], 7);
- i2ctabptr = ROM16(dcbtable[2]);
- recordlength = 10;
- confofs = 6;
-
- if (strcmp(sig, "DEV_REC")) {
- NV_ERROR(dev, "Bad Display Configuration Block "
- "signature (%s)\n", sig);
- return -EINVAL;
- }
- } else {
- /*
- * v1.4 (some NV15/16, NV11+) seems the same as v1.5, but always
- * has the same single (crt) entry, even when tv-out present, so
- * the conclusion is this version cannot really be used.
- * v1.2 tables (some NV6/10, and NV15+) normally have the same
- * 5 entries, which are not specific to the card and so no use.
- * v1.2 does have an I2C table that read_dcb_i2c_table can
- * handle, but cards exist (nv11 in #14821) with a bad i2c table
- * pointer, so use the indices parsed in parse_bmp_structure.
- * v1.1 (NV5+, maybe some NV4) is entirely unhelpful
- */
- NV_TRACEWARN(dev, "No useful information in BIOS output table; "
- "adding all possible outputs\n");
- fabricate_vga_output(dcb, LEGACY_I2C_CRT, 1);
-
- /*
- * Attempt to detect TV before DVI because the test
- * for the former is more accurate and it rules the
- * latter out.
- */
- if (nv04_tv_identify(dev,
- bios->legacy.i2c_indices.tv) >= 0)
- fabricate_tv_output(dcb, twoHeads);
-
- else if (bios->tmds.output0_script_ptr ||
- bios->tmds.output1_script_ptr)
- fabricate_dvi_i_output(dcb, twoHeads);
-
- return 0;
- }
-
- if (!i2ctabptr)
- NV_WARN(dev, "No pointer to DCB I2C port table\n");
- else {
- dcb->i2c_table = &bios->data[i2ctabptr];
- if (dcb->version >= 0x30)
- dcb->i2c_default_indices = dcb->i2c_table[4];
-
- /*
- * Parse the "management" I2C bus, used for hardware
- * monitoring and some external TMDS transmitters.
- */
- if (dcb->version >= 0x22) {
- int idx = (dcb->version >= 0x40 ?
- dcb->i2c_default_indices & 0xf :
- 2);
-
- read_dcb_i2c_entry(dev, dcb->version, dcb->i2c_table,
- idx, &dcb->i2c[idx]);
- }
- }
-
- if (entries > DCB_MAX_NUM_ENTRIES)
- entries = DCB_MAX_NUM_ENTRIES;
-
- for (i = 0; i < entries; i++) {
- uint32_t connection, config = 0;
-
- connection = ROM32(dcbtable[headerlen + recordlength * i]);
- if (configblock)
- config = ROM32(dcbtable[headerlen + confofs + recordlength * i]);
-
- /* seen on an NV11 with DCB v1.5 */
- if (connection == 0x00000000)
- break;
-
- /* seen on an NV17 with DCB v2.0 */
- if (connection == 0xffffffff)
- break;
-
- if ((connection & 0x0000000f) == 0x0000000f)
- continue;
-
- if (!apply_dcb_encoder_quirks(dev, i, &connection, &config))
- continue;
-
- NV_TRACEWARN(dev, "Raw DCB entry %d: %08x %08x\n",
- dcb->entries, connection, config);
-
- if (!parse_dcb_entry(dev, dcb, connection, config))
- break;
- }
-
- /*
- * apart for v2.1+ not being known for requiring merging, this
- * guarantees dcbent->index is the index of the entry in the rom image
- */
- if (dcb->version < 0x21)
- merge_like_dcb_entries(dev, dcb);
-
- if (!dcb->entries)
- return -ENXIO;
-
- parse_dcb_gpio_table(bios);
- parse_dcb_connector_table(bios);
- return 0;
-}
-
-static void
-fixup_legacy_connector(struct nvbios *bios)
-{
- struct dcb_table *dcb = &bios->dcb;
- int i, i2c, i2c_conn[DCB_MAX_NUM_I2C_ENTRIES] = { };
-
- /*
- * DCB 3.0 also has the table in most cases, but there are some cards
- * where the table is filled with stub entries, and the DCB entriy
- * indices are all 0. We don't need the connector indices on pre-G80
- * chips (yet?) so limit the use to DCB 4.0 and above.
- */
- if (dcb->version >= 0x40)
- return;
-
- dcb->connector.entries = 0;
-
- /*
- * No known connector info before v3.0, so make it up. the rule here
- * is: anything on the same i2c bus is considered to be on the same
- * connector. any output without an associated i2c bus is assigned
- * its own unique connector index.
- */
- for (i = 0; i < dcb->entries; i++) {
- /*
- * Ignore the I2C index for on-chip TV-out, as there
- * are cards with bogus values (nv31m in bug 23212),
- * and it's otherwise useless.
- */
- if (dcb->entry[i].type == OUTPUT_TV &&
- dcb->entry[i].location == DCB_LOC_ON_CHIP)
- dcb->entry[i].i2c_index = 0xf;
- i2c = dcb->entry[i].i2c_index;
-
- if (i2c_conn[i2c]) {
- dcb->entry[i].connector = i2c_conn[i2c] - 1;
- continue;
- }
-
- dcb->entry[i].connector = dcb->connector.entries++;
- if (i2c != 0xf)
- i2c_conn[i2c] = dcb->connector.entries;
- }
-
- /* Fake the connector table as well as just connector indices */
- for (i = 0; i < dcb->connector.entries; i++) {
- dcb->connector.entry[i].index = i;
- dcb->connector.entry[i].type = divine_connector_type(bios, i);
- dcb->connector.entry[i].gpio_tag = 0xff;
- }
-}
-
-static void
-fixup_legacy_i2c(struct nvbios *bios)
-{
- struct dcb_table *dcb = &bios->dcb;
- int i;
-
- for (i = 0; i < dcb->entries; i++) {
- if (dcb->entry[i].i2c_index == LEGACY_I2C_CRT)
- dcb->entry[i].i2c_index = bios->legacy.i2c_indices.crt;
- if (dcb->entry[i].i2c_index == LEGACY_I2C_PANEL)
- dcb->entry[i].i2c_index = bios->legacy.i2c_indices.panel;
- if (dcb->entry[i].i2c_index == LEGACY_I2C_TV)
- dcb->entry[i].i2c_index = bios->legacy.i2c_indices.tv;
- }
-}
-
-static int load_nv17_hwsq_ucode_entry(struct drm_device *dev, struct nvbios *bios, uint16_t hwsq_offset, int entry)
-{
- /*
- * The header following the "HWSQ" signature has the number of entries,
- * and the entry size
- *
- * An entry consists of a dword to write to the sequencer control reg
- * (0x00001304), followed by the ucode bytes, written sequentially,
- * starting at reg 0x00001400
- */
-
- uint8_t bytes_to_write;
- uint16_t hwsq_entry_offset;
- int i;
-
- if (bios->data[hwsq_offset] <= entry) {
- NV_ERROR(dev, "Too few entries in HW sequencer table for "
- "requested entry\n");
- return -ENOENT;
- }
-
- bytes_to_write = bios->data[hwsq_offset + 1];
-
- if (bytes_to_write != 36) {
- NV_ERROR(dev, "Unknown HW sequencer entry size\n");
- return -EINVAL;
- }
-
- NV_TRACE(dev, "Loading NV17 power sequencing microcode\n");
-
- hwsq_entry_offset = hwsq_offset + 2 + entry * bytes_to_write;
-
- /* set sequencer control */
- bios_wr32(bios, 0x00001304, ROM32(bios->data[hwsq_entry_offset]));
- bytes_to_write -= 4;
-
- /* write ucode */
- for (i = 0; i < bytes_to_write; i += 4)
- bios_wr32(bios, 0x00001400 + i, ROM32(bios->data[hwsq_entry_offset + i + 4]));
-
- /* twiddle NV_PBUS_DEBUG_4 */
- bios_wr32(bios, NV_PBUS_DEBUG_4, bios_rd32(bios, NV_PBUS_DEBUG_4) | 0x18);
-
- return 0;
-}
-
-static int load_nv17_hw_sequencer_ucode(struct drm_device *dev,
- struct nvbios *bios)
-{
- /*
- * BMP based cards, from NV17, need a microcode loading to correctly
- * control the GPIO etc for LVDS panels
- *
- * BIT based cards seem to do this directly in the init scripts
- *
- * The microcode entries are found by the "HWSQ" signature.
- */
-
- const uint8_t hwsq_signature[] = { 'H', 'W', 'S', 'Q' };
- const int sz = sizeof(hwsq_signature);
- int hwsq_offset;
-
- hwsq_offset = findstr(bios->data, bios->length, hwsq_signature, sz);
- if (!hwsq_offset)
- return 0;
-
- /* always use entry 0? */
- return load_nv17_hwsq_ucode_entry(dev, bios, hwsq_offset + sz, 0);
-}
-
-uint8_t *nouveau_bios_embedded_edid(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- const uint8_t edid_sig[] = {
- 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00 };
- uint16_t offset = 0;
- uint16_t newoffset;
- int searchlen = NV_PROM_SIZE;
-
- if (bios->fp.edid)
- return bios->fp.edid;
-
- while (searchlen) {
- newoffset = findstr(&bios->data[offset], searchlen,
- edid_sig, 8);
- if (!newoffset)
- return NULL;
- offset += newoffset;
- if (!nv_cksum(&bios->data[offset], EDID1_LEN))
- break;
-
- searchlen -= offset;
- offset++;
- }
-
- NV_TRACE(dev, "Found EDID in BIOS\n");
-
- return bios->fp.edid = &bios->data[offset];
-}
-
-void
-nouveau_bios_run_init_table(struct drm_device *dev, uint16_t table,
- struct dcb_entry *dcbent)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- struct init_exec iexec = { true, false };
-
- mutex_lock(&bios->lock);
- bios->display.output = dcbent;
- parse_init_table(bios, table, &iexec);
- bios->display.output = NULL;
- mutex_unlock(&bios->lock);
-}
-
-static bool NVInitVBIOS(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
-
- memset(bios, 0, sizeof(struct nvbios));
- mutex_init(&bios->lock);
- bios->dev = dev;
-
- if (!NVShadowVBIOS(dev, bios->data))
- return false;
-
- bios->length = NV_PROM_SIZE;
- return true;
-}
-
-static int nouveau_parse_vbios_struct(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- const uint8_t bit_signature[] = { 0xff, 0xb8, 'B', 'I', 'T' };
- const uint8_t bmp_signature[] = { 0xff, 0x7f, 'N', 'V', 0x0 };
- int offset;
-
- offset = findstr(bios->data, bios->length,
- bit_signature, sizeof(bit_signature));
- if (offset) {
- NV_TRACE(dev, "BIT BIOS found\n");
- return parse_bit_structure(bios, offset + 6);
- }
-
- offset = findstr(bios->data, bios->length,
- bmp_signature, sizeof(bmp_signature));
- if (offset) {
- NV_TRACE(dev, "BMP BIOS found\n");
- return parse_bmp_structure(dev, bios, offset);
- }
-
- NV_ERROR(dev, "No known BIOS signature found\n");
- return -ENODEV;
-}
-
-int
-nouveau_run_vbios_init(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- int i, ret = 0;
-
- /* Reset the BIOS head to 0. */
- bios->state.crtchead = 0;
-
- if (bios->major_version < 5) /* BMP only */
- load_nv17_hw_sequencer_ucode(dev, bios);
-
- if (bios->execute) {
- bios->fp.last_script_invoc = 0;
- bios->fp.lvds_init_run = false;
- }
-
- parse_init_tables(bios);
-
- /*
- * Runs some additional script seen on G8x VBIOSen. The VBIOS'
- * parser will run this right after the init tables, the binary
- * driver appears to run it at some point later.
- */
- if (bios->some_script_ptr) {
- struct init_exec iexec = {true, false};
-
- NV_INFO(dev, "Parsing VBIOS init table at offset 0x%04X\n",
- bios->some_script_ptr);
- parse_init_table(bios, bios->some_script_ptr, &iexec);
- }
-
- if (dev_priv->card_type >= NV_50) {
- for (i = 0; i < bios->dcb.entries; i++) {
- nouveau_bios_run_display_table(dev,
- &bios->dcb.entry[i],
- 0, 0);
- }
- }
-
- return ret;
-}
-
-static void
-nouveau_bios_i2c_devices_takedown(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- struct dcb_i2c_entry *entry;
- int i;
-
- entry = &bios->dcb.i2c[0];
- for (i = 0; i < DCB_MAX_NUM_I2C_ENTRIES; i++, entry++)
- nouveau_i2c_fini(dev, entry);
-}
-
-static bool
-nouveau_bios_posted(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- unsigned htotal;
-
- if (dev_priv->chipset >= NV_50) {
- if (NVReadVgaCrtc(dev, 0, 0x00) == 0 &&
- NVReadVgaCrtc(dev, 0, 0x1a) == 0)
- return false;
- return true;
- }
-
- htotal = NVReadVgaCrtc(dev, 0, 0x06);
- htotal |= (NVReadVgaCrtc(dev, 0, 0x07) & 0x01) << 8;
- htotal |= (NVReadVgaCrtc(dev, 0, 0x07) & 0x20) << 4;
- htotal |= (NVReadVgaCrtc(dev, 0, 0x25) & 0x01) << 10;
- htotal |= (NVReadVgaCrtc(dev, 0, 0x41) & 0x01) << 11;
-
- return (htotal != 0);
-}
-
-int
-nouveau_bios_init(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nvbios *bios = &dev_priv->vbios;
- int ret;
-
- if (!NVInitVBIOS(dev))
- return -ENODEV;
-
- ret = nouveau_parse_vbios_struct(dev);
- if (ret)
- return ret;
-
- ret = parse_dcb_table(dev, bios, nv_two_heads(dev));
- if (ret)
- return ret;
-
- fixup_legacy_i2c(bios);
- fixup_legacy_connector(bios);
-
- if (!bios->major_version) /* we don't run version 0 bios */
- return 0;
-
- /* init script execution disabled */
- bios->execute = false;
-
- /* ... unless card isn't POSTed already */
- if (!nouveau_bios_posted(dev)) {
- NV_INFO(dev, "Adaptor not initialised, "
- "running VBIOS init tables.\n");
- bios->execute = true;
- }
-
- ret = nouveau_run_vbios_init(dev);
- if (ret)
- return ret;
-
- /* feature_byte on BMP is poor, but init always sets CR4B */
- if (bios->major_version < 5)
- bios->is_mobile = NVReadVgaCrtc(dev, 0, NV_CIO_CRE_4B) & 0x40;
-
- /* all BIT systems need p_f_m_t for digital_min_front_porch */
- if (bios->is_mobile || bios->major_version >= 5)
- ret = parse_fp_mode_table(dev, bios);
-
- /* allow subsequent scripts to execute */
- bios->execute = true;
-
- return 0;
-}
-
-void
-nouveau_bios_takedown(struct drm_device *dev)
-{
- nouveau_bios_i2c_devices_takedown(dev);
-}
Index: linux-2.6/drivers/gpu/drm/nouveau/nouveau_bios.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ linux-2.6/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -2167,11 +2167,11 @@ peek_fb(struct drm_device *dev, struct i
if (off < pci_resource_len(dev->pdev, 1)) {
uint8_t __iomem *p =
- io_mapping_map_atomic_wc(fb, off & PAGE_MASK, KM_USER0);
+ io_mapping_map_atomic_wc(fb, off & PAGE_MASK);
val = ioread32(p + (off & ~PAGE_MASK));
- io_mapping_unmap_atomic(p, KM_USER0);
+ io_mapping_unmap_atomic(p);
}
return val;
@@ -2183,12 +2183,12 @@ poke_fb(struct drm_device *dev, struct i
{
if (off < pci_resource_len(dev->pdev, 1)) {
uint8_t __iomem *p =
- io_mapping_map_atomic_wc(fb, off & PAGE_MASK, KM_USER0);
+ io_mapping_map_atomic_wc(fb, off & PAGE_MASK);
iowrite32(val, p + (off & ~PAGE_MASK));
wmb();
- io_mapping_unmap_atomic(p, KM_USER0);
+ io_mapping_unmap_atomic(p);
}
}
--
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^ permalink raw reply [flat|nested] 24+ messages in thread
* [PATCH 3/5] mm: Remove pte_*map_nested()
2010-09-18 15:53 ` Peter Zijlstra
@ 2010-09-18 15:53 ` Peter Zijlstra
-1 siblings, 0 replies; 24+ messages in thread
From: Peter Zijlstra @ 2010-09-18 15:53 UTC (permalink / raw)
To: Linus Torvalds
Cc: Andrew Morton, Ingo Molnar, Thomas Gleixner, H. Peter Anvin,
Russell King, David Howells, Ralf Baechle, David Miller,
Chris Metcalf, Paul Mackerras, Benjamin Herrenschmidt,
Hugh Dickins, linux-kernel, linux-mm, linux-arch, Peter Zijlstra
[-- Attachment #1: kmap-pte_nest.patch --]
[-- Type: text/plain, Size: 25395 bytes --]
Since we no longer need to provide KM_type, the whole pte_*map_nested()
API is now redundant, remove it.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
---
arch/alpha/include/asm/pgtable.h | 2 --
arch/arm/include/asm/pgtable.h | 14 ++++++--------
arch/arm/mm/fault-armv.c | 4 ++--
arch/arm/mm/pgd.c | 4 ++--
arch/avr32/include/asm/pgtable.h | 2 --
arch/cris/include/asm/pgtable.h | 2 --
arch/frv/include/asm/pgtable.h | 9 ++-------
arch/ia64/include/asm/pgtable.h | 2 --
arch/m32r/include/asm/pgtable.h | 2 --
arch/m68k/include/asm/motorola_pgtable.h | 2 --
arch/m68k/include/asm/sun3_pgtable.h | 2 --
arch/microblaze/include/asm/pgtable.h | 7 ++-----
arch/mips/include/asm/pgtable-32.h | 3 ---
arch/mips/include/asm/pgtable-64.h | 3 ---
arch/mn10300/include/asm/pgtable.h | 2 --
arch/parisc/include/asm/pgtable.h | 2 --
arch/powerpc/include/asm/pgtable-ppc32.h | 8 ++------
arch/powerpc/include/asm/pgtable-ppc64.h | 2 --
arch/s390/include/asm/pgtable.h | 2 --
arch/score/include/asm/pgtable.h | 3 ---
arch/sh/include/asm/pgtable_32.h | 3 ---
arch/sh/include/asm/pgtable_64.h | 2 --
arch/sparc/include/asm/pgtable_32.h | 3 ---
arch/sparc/include/asm/pgtable_64.h | 2 --
arch/tile/include/asm/pgtable.h | 5 -----
arch/um/include/asm/pgtable.h | 2 --
arch/x86/include/asm/pgtable_32.h | 14 ++------------
arch/x86/include/asm/pgtable_64.h | 2 --
arch/xtensa/include/asm/pgtable.h | 3 ---
mm/memory.c | 4 ++--
mm/mremap.c | 4 ++--
31 files changed, 22 insertions(+), 99 deletions(-)
Index: linux-2.6/arch/alpha/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/alpha/include/asm/pgtable.h
+++ linux-2.6/arch/alpha/include/asm/pgtable.h
@@ -318,9 +318,7 @@ extern inline pte_t * pte_offset_kernel(
}
#define pte_offset_map(dir,addr) pte_offset_kernel((dir),(addr))
-#define pte_offset_map_nested(dir,addr) pte_offset_kernel((dir),(addr))
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
extern pgd_t swapper_pg_dir[1024];
Index: linux-2.6/arch/arm/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/arm/include/asm/pgtable.h
+++ linux-2.6/arch/arm/include/asm/pgtable.h
@@ -263,17 +263,15 @@ extern struct page *empty_zero_page;
#define pte_page(pte) (pfn_to_page(pte_pfn(pte)))
#define pte_offset_kernel(dir,addr) (pmd_page_vaddr(*(dir)) + __pte_index(addr))
-#define pte_offset_map(dir,addr) (__pte_map(dir, KM_PTE0) + __pte_index(addr))
-#define pte_offset_map_nested(dir,addr) (__pte_map(dir, KM_PTE1) + __pte_index(addr))
-#define pte_unmap(pte) __pte_unmap(pte, KM_PTE0)
-#define pte_unmap_nested(pte) __pte_unmap(pte, KM_PTE1)
+#define pte_offset_map(dir,addr) (__pte_map(dir) + __pte_index(addr))
+#define pte_unmap(pte) __pte_unmap(pte)
#ifndef CONFIG_HIGHPTE
-#define __pte_map(dir,km) pmd_page_vaddr(*(dir))
-#define __pte_unmap(pte,km) do { } while (0)
+#define __pte_map(dir) pmd_page_vaddr(*(dir))
+#define __pte_unmap(pte) do { } while (0)
#else
-#define __pte_map(dir,km) ((pte_t *)kmap_atomic(pmd_page(*(dir)), km) + PTRS_PER_PTE)
-#define __pte_unmap(pte,km) kunmap_atomic((pte - PTRS_PER_PTE), km)
+#define __pte_map(dir) ((pte_t *)kmap_atomic(pmd_page(*(dir))) + PTRS_PER_PTE)
+#define __pte_unmap(pte) kunmap_atomic((pte - PTRS_PER_PTE))
#endif
#define set_pte_ext(ptep,pte,ext) cpu_set_pte_ext(ptep,pte,ext)
Index: linux-2.6/arch/arm/mm/fault-armv.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/fault-armv.c
+++ linux-2.6/arch/arm/mm/fault-armv.c
@@ -88,13 +88,13 @@ static int adjust_pte(struct vm_area_str
* open-code the spin-locking.
*/
ptl = pte_lockptr(vma->vm_mm, pmd);
- pte = pte_offset_map_nested(pmd, address);
+ pte = pte_offset_map(pmd, address);
spin_lock(ptl);
ret = do_adjust_pte(vma, address, pfn, pte);
spin_unlock(ptl);
- pte_unmap_nested(pte);
+ pte_unmap(pte);
return ret;
}
Index: linux-2.6/arch/arm/mm/pgd.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/pgd.c
+++ linux-2.6/arch/arm/mm/pgd.c
@@ -57,9 +57,9 @@ pgd_t *get_pgd_slow(struct mm_struct *mm
goto no_pte;
init_pmd = pmd_offset(init_pgd, 0);
- init_pte = pte_offset_map_nested(init_pmd, 0);
+ init_pte = pte_offset_map(init_pmd, 0);
set_pte_ext(new_pte, *init_pte, 0);
- pte_unmap_nested(init_pte);
+ pte_unmap(init_pte);
pte_unmap(new_pte);
}
Index: linux-2.6/arch/avr32/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/avr32/include/asm/pgtable.h
+++ linux-2.6/arch/avr32/include/asm/pgtable.h
@@ -319,9 +319,7 @@ static inline pte_t pte_modify(pte_t pte
#define pte_offset_kernel(dir, address) \
((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address))
#define pte_offset_map(dir, address) pte_offset_kernel(dir, address)
-#define pte_offset_map_nested(dir, address) pte_offset_kernel(dir, address)
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
struct vm_area_struct;
extern void update_mmu_cache(struct vm_area_struct * vma,
Index: linux-2.6/arch/cris/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/cris/include/asm/pgtable.h
+++ linux-2.6/arch/cris/include/asm/pgtable.h
@@ -248,10 +248,8 @@ static inline pgd_t * pgd_offset(const s
((pte_t *) pmd_page_vaddr(*(dir)) + __pte_offset(address))
#define pte_offset_map(dir, address) \
((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
-#define pte_offset_map_nested(dir, address) pte_offset_map(dir, address)
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
#define pte_pfn(x) ((unsigned long)(__va((x).pte)) >> PAGE_SHIFT)
#define pfn_pte(pfn, prot) __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
Index: linux-2.6/arch/frv/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/frv/include/asm/pgtable.h
+++ linux-2.6/arch/frv/include/asm/pgtable.h
@@ -451,17 +451,12 @@ static inline pte_t pte_modify(pte_t pte
#if defined(CONFIG_HIGHPTE)
#define pte_offset_map(dir, address) \
- ((pte_t *)kmap_atomic(pmd_page(*(dir)),KM_PTE0) + pte_index(address))
-#define pte_offset_map_nested(dir, address) \
- ((pte_t *)kmap_atomic(pmd_page(*(dir)),KM_PTE1) + pte_index(address))
-#define pte_unmap(pte) kunmap_atomic(pte, KM_PTE0)
-#define pte_unmap_nested(pte) kunmap_atomic((pte), KM_PTE1)
+ ((pte_t *)kmap_atomic(pmd_page(*(dir))) + pte_index(address))
+#define pte_unmap(pte) kunmap_atomic(pte)
#else
#define pte_offset_map(dir, address) \
((pte_t *)page_address(pmd_page(*(dir))) + pte_index(address))
-#define pte_offset_map_nested(dir, address) pte_offset_map((dir), (address))
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
#endif
/*
Index: linux-2.6/arch/ia64/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/ia64/include/asm/pgtable.h
+++ linux-2.6/arch/ia64/include/asm/pgtable.h
@@ -406,9 +406,7 @@ pgd_offset (const struct mm_struct *mm,
#define pte_index(addr) (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
#define pte_offset_kernel(dir,addr) ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(addr))
#define pte_offset_map(dir,addr) pte_offset_kernel(dir, addr)
-#define pte_offset_map_nested(dir,addr) pte_offset_map(dir, addr)
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
/* atomic versions of the some PTE manipulations: */
Index: linux-2.6/arch/m32r/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/m32r/include/asm/pgtable.h
+++ linux-2.6/arch/m32r/include/asm/pgtable.h
@@ -332,9 +332,7 @@ static inline void pmd_set(pmd_t * pmdp,
((pte_t *)pmd_page_vaddr(*(dir)) + pte_index(address))
#define pte_offset_map(dir, address) \
((pte_t *)page_address(pmd_page(*(dir))) + pte_index(address))
-#define pte_offset_map_nested(dir, address) pte_offset_map(dir, address)
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
/* Encode and de-code a swap entry */
#define __swp_type(x) (((x).val >> 2) & 0x1f)
Index: linux-2.6/arch/m68k/include/asm/motorola_pgtable.h
===================================================================
--- linux-2.6.orig/arch/m68k/include/asm/motorola_pgtable.h
+++ linux-2.6/arch/m68k/include/asm/motorola_pgtable.h
@@ -221,9 +221,7 @@ static inline pte_t *pte_offset_kernel(p
}
#define pte_offset_map(pmdp,address) ((pte_t *)__pmd_page(*pmdp) + (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)))
-#define pte_offset_map_nested(pmdp, address) pte_offset_map(pmdp, address)
#define pte_unmap(pte) ((void)0)
-#define pte_unmap_nested(pte) ((void)0)
/*
* Allocate and free page tables. The xxx_kernel() versions are
Index: linux-2.6/arch/m68k/include/asm/sun3_pgtable.h
===================================================================
--- linux-2.6.orig/arch/m68k/include/asm/sun3_pgtable.h
+++ linux-2.6/arch/m68k/include/asm/sun3_pgtable.h
@@ -219,9 +219,7 @@ static inline pte_t pgoff_to_pte(unsigne
#define pte_offset_kernel(pmd, address) ((pte_t *) __pmd_page(*pmd) + pte_index(address))
/* FIXME: should we bother with kmap() here? */
#define pte_offset_map(pmd, address) ((pte_t *)kmap(pmd_page(*pmd)) + pte_index(address))
-#define pte_offset_map_nested(pmd, address) pte_offset_map(pmd, address)
#define pte_unmap(pte) kunmap(pte)
-#define pte_unmap_nested(pte) kunmap(pte)
/* Macros to (de)construct the fake PTEs representing swap pages. */
#define __swp_type(x) ((x).val & 0x7F)
Index: linux-2.6/arch/microblaze/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/microblaze/include/asm/pgtable.h
+++ linux-2.6/arch/microblaze/include/asm/pgtable.h
@@ -497,12 +497,9 @@ static inline pmd_t *pmd_offset(pgd_t *d
#define pte_offset_kernel(dir, addr) \
((pte_t *) pmd_page_kernel(*(dir)) + pte_index(addr))
#define pte_offset_map(dir, addr) \
- ((pte_t *) kmap_atomic(pmd_page(*(dir)), KM_PTE0) + pte_index(addr))
-#define pte_offset_map_nested(dir, addr) \
- ((pte_t *) kmap_atomic(pmd_page(*(dir)), KM_PTE1) + pte_index(addr))
+ ((pte_t *) kmap_atomic(pmd_page(*(dir))) + pte_index(addr))
-#define pte_unmap(pte) kunmap_atomic(pte, KM_PTE0)
-#define pte_unmap_nested(pte) kunmap_atomic(pte, KM_PTE1)
+#define pte_unmap(pte) kunmap_atomic(pte)
/* Encode and decode a nonlinear file mapping entry */
#define PTE_FILE_MAX_BITS 29
Index: linux-2.6/arch/mips/include/asm/pgtable-32.h
===================================================================
--- linux-2.6.orig/arch/mips/include/asm/pgtable-32.h
+++ linux-2.6/arch/mips/include/asm/pgtable-32.h
@@ -154,10 +154,7 @@ pfn_pte(unsigned long pfn, pgprot_t prot
#define pte_offset_map(dir, address) \
((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
-#define pte_offset_map_nested(dir, address) \
- ((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
#define pte_unmap(pte) ((void)(pte))
-#define pte_unmap_nested(pte) ((void)(pte))
#if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
Index: linux-2.6/arch/mips/include/asm/pgtable-64.h
===================================================================
--- linux-2.6.orig/arch/mips/include/asm/pgtable-64.h
+++ linux-2.6/arch/mips/include/asm/pgtable-64.h
@@ -257,10 +257,7 @@ static inline pmd_t *pmd_offset(pud_t *
((pte_t *) pmd_page_vaddr(*(dir)) + __pte_offset(address))
#define pte_offset_map(dir, address) \
((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
-#define pte_offset_map_nested(dir, address) \
- ((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
#define pte_unmap(pte) ((void)(pte))
-#define pte_unmap_nested(pte) ((void)(pte))
/*
* Initialize a new pgd / pmd table with invalid pointers.
Index: linux-2.6/arch/mn10300/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/mn10300/include/asm/pgtable.h
+++ linux-2.6/arch/mn10300/include/asm/pgtable.h
@@ -457,9 +457,7 @@ static inline int set_kernel_exec(unsign
#define pte_offset_map(dir, address) \
((pte_t *) page_address(pmd_page(*(dir))) + pte_index(address))
-#define pte_offset_map_nested(dir, address) pte_offset_map(dir, address)
#define pte_unmap(pte) do {} while (0)
-#define pte_unmap_nested(pte) do {} while (0)
/*
* The MN10300 has external MMU info in the form of a TLB: this is adapted from
Index: linux-2.6/arch/parisc/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/parisc/include/asm/pgtable.h
+++ linux-2.6/arch/parisc/include/asm/pgtable.h
@@ -397,9 +397,7 @@ static inline pte_t pte_modify(pte_t pte
#define pte_offset_kernel(pmd, address) \
((pte_t *) pmd_page_vaddr(*(pmd)) + pte_index(address))
#define pte_offset_map(pmd, address) pte_offset_kernel(pmd, address)
-#define pte_offset_map_nested(pmd, address) pte_offset_kernel(pmd, address)
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
#define pte_unmap(pte) do { } while (0)
#define pte_unmap_nested(pte) do { } while (0)
Index: linux-2.6/arch/powerpc/include/asm/pgtable-ppc32.h
===================================================================
--- linux-2.6.orig/arch/powerpc/include/asm/pgtable-ppc32.h
+++ linux-2.6/arch/powerpc/include/asm/pgtable-ppc32.h
@@ -308,12 +308,8 @@ static inline void __ptep_set_access_fla
#define pte_offset_kernel(dir, addr) \
((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(addr))
#define pte_offset_map(dir, addr) \
- ((pte_t *) kmap_atomic(pmd_page(*(dir)), KM_PTE0) + pte_index(addr))
-#define pte_offset_map_nested(dir, addr) \
- ((pte_t *) kmap_atomic(pmd_page(*(dir)), KM_PTE1) + pte_index(addr))
-
-#define pte_unmap(pte) kunmap_atomic(pte, KM_PTE0)
-#define pte_unmap_nested(pte) kunmap_atomic(pte, KM_PTE1)
+ ((pte_t *) kmap_atomic(pmd_page(*(dir))) + pte_index(addr))
+#define pte_unmap(pte) kunmap_atomic(pte)
/*
* Encode and decode a swap entry.
Index: linux-2.6/arch/powerpc/include/asm/pgtable-ppc64.h
===================================================================
--- linux-2.6.orig/arch/powerpc/include/asm/pgtable-ppc64.h
+++ linux-2.6/arch/powerpc/include/asm/pgtable-ppc64.h
@@ -193,9 +193,7 @@
(((pte_t *) pmd_page_vaddr(*(dir))) + (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)))
#define pte_offset_map(dir,addr) pte_offset_kernel((dir), (addr))
-#define pte_offset_map_nested(dir,addr) pte_offset_kernel((dir), (addr))
#define pte_unmap(pte) do { } while(0)
-#define pte_unmap_nested(pte) do { } while(0)
/* to find an entry in a kernel page-table-directory */
/* This now only contains the vmalloc pages */
Index: linux-2.6/arch/s390/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/s390/include/asm/pgtable.h
+++ linux-2.6/arch/s390/include/asm/pgtable.h
@@ -1048,9 +1048,7 @@ static inline pmd_t *pmd_offset(pud_t *p
#define pte_offset(pmd, addr) ((pte_t *) pmd_deref(*(pmd)) + pte_index(addr))
#define pte_offset_kernel(pmd, address) pte_offset(pmd,address)
#define pte_offset_map(pmd, address) pte_offset_kernel(pmd, address)
-#define pte_offset_map_nested(pmd, address) pte_offset_kernel(pmd, address)
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
/*
* 31 bit swap entry format:
Index: linux-2.6/arch/score/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/score/include/asm/pgtable.h
+++ linux-2.6/arch/score/include/asm/pgtable.h
@@ -88,10 +88,7 @@ static inline void pmd_clear(pmd_t *pmdp
#define pte_offset_map(dir, address) \
((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
-#define pte_offset_map_nested(dir, address) \
- ((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
#define pte_unmap(pte) ((void)(pte))
-#define pte_unmap_nested(pte) ((void)(pte))
/*
* Bits 9(_PAGE_PRESENT) and 10(_PAGE_FILE)are taken,
Index: linux-2.6/arch/sh/include/asm/pgtable_32.h
===================================================================
--- linux-2.6.orig/arch/sh/include/asm/pgtable_32.h
+++ linux-2.6/arch/sh/include/asm/pgtable_32.h
@@ -429,10 +429,7 @@ static inline pte_t pte_modify(pte_t pte
#define pte_offset_kernel(dir, address) \
((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address))
#define pte_offset_map(dir, address) pte_offset_kernel(dir, address)
-#define pte_offset_map_nested(dir, address) pte_offset_kernel(dir, address)
-
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
#ifdef CONFIG_X2TLB
#define pte_ERROR(e) \
Index: linux-2.6/arch/sh/include/asm/pgtable_64.h
===================================================================
--- linux-2.6.orig/arch/sh/include/asm/pgtable_64.h
+++ linux-2.6/arch/sh/include/asm/pgtable_64.h
@@ -84,9 +84,7 @@ static __inline__ void set_pte(pte_t *pt
((pte_t *) ((pmd_val(*(dir))) & PAGE_MASK) + pte_index((addr)))
#define pte_offset_map(dir,addr) pte_offset_kernel(dir, addr)
-#define pte_offset_map_nested(dir,addr) pte_offset_kernel(dir, addr)
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
#ifndef __ASSEMBLY__
#define IOBASE_VADDR 0xff000000
Index: linux-2.6/arch/sparc/include/asm/pgtable_32.h
===================================================================
--- linux-2.6.orig/arch/sparc/include/asm/pgtable_32.h
+++ linux-2.6/arch/sparc/include/asm/pgtable_32.h
@@ -304,10 +304,7 @@ BTFIXUPDEF_CALL(pte_t *, pte_offset_kern
* and sun4c is guaranteed to have no highmem anyway.
*/
#define pte_offset_map(d, a) pte_offset_kernel(d,a)
-#define pte_offset_map_nested(d, a) pte_offset_kernel(d,a)
-
#define pte_unmap(pte) do{}while(0)
-#define pte_unmap_nested(pte) do{}while(0)
/* Certain architectures need to do special things when pte's
* within a page table are directly modified. Thus, the following
Index: linux-2.6/arch/sparc/include/asm/pgtable_64.h
===================================================================
--- linux-2.6.orig/arch/sparc/include/asm/pgtable_64.h
+++ linux-2.6/arch/sparc/include/asm/pgtable_64.h
@@ -652,9 +652,7 @@ static inline int pte_special(pte_t pte)
((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)))
#define pte_offset_kernel pte_index
#define pte_offset_map pte_index
-#define pte_offset_map_nested pte_index
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
/* Actual page table PTE updates. */
extern void tlb_batch_add(struct mm_struct *mm, unsigned long vaddr, pte_t *ptep, pte_t orig);
Index: linux-2.6/arch/um/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/um/include/asm/pgtable.h
+++ linux-2.6/arch/um/include/asm/pgtable.h
@@ -338,9 +338,7 @@ static inline pte_t pte_modify(pte_t pte
((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address))
#define pte_offset_map(dir, address) \
((pte_t *)page_address(pmd_page(*(dir))) + pte_index(address))
-#define pte_offset_map_nested(dir, address) pte_offset_map(dir, address)
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
struct mm_struct;
extern pte_t *virt_to_pte(struct mm_struct *mm, unsigned long addr);
Index: linux-2.6/arch/x86/include/asm/pgtable_32.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/pgtable_32.h
+++ linux-2.6/arch/x86/include/asm/pgtable_32.h
@@ -49,24 +49,14 @@ extern void set_pmd_pfn(unsigned long, u
#endif
#if defined(CONFIG_HIGHPTE)
-#define __KM_PTE \
- (in_nmi() ? KM_NMI_PTE : \
- in_irq() ? KM_IRQ_PTE : \
- KM_PTE0)
#define pte_offset_map(dir, address) \
- ((pte_t *)kmap_atomic(pmd_page(*(dir)), __KM_PTE) + \
+ ((pte_t *)kmap_atomic(pmd_page(*(dir))) + \
pte_index((address)))
-#define pte_offset_map_nested(dir, address) \
- ((pte_t *)kmap_atomic(pmd_page(*(dir)), KM_PTE1) + \
- pte_index((address)))
-#define pte_unmap(pte) kunmap_atomic((pte), __KM_PTE)
-#define pte_unmap_nested(pte) kunmap_atomic((pte), KM_PTE1)
+#define pte_unmap(pte) kunmap_atomic((pte))
#else
#define pte_offset_map(dir, address) \
((pte_t *)page_address(pmd_page(*(dir))) + pte_index((address)))
-#define pte_offset_map_nested(dir, address) pte_offset_map((dir), (address))
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
#endif
/* Clear a kernel PTE and flush it from the TLB */
Index: linux-2.6/arch/x86/include/asm/pgtable_64.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/pgtable_64.h
+++ linux-2.6/arch/x86/include/asm/pgtable_64.h
@@ -127,9 +127,7 @@ static inline int pgd_large(pgd_t pgd) {
/* x86-64 always has all page tables mapped. */
#define pte_offset_map(dir, address) pte_offset_kernel((dir), (address))
-#define pte_offset_map_nested(dir, address) pte_offset_kernel((dir), (address))
#define pte_unmap(pte) ((void)(pte))/* NOP */
-#define pte_unmap_nested(pte) ((void)(pte)) /* NOP */
#define update_mmu_cache(vma, address, ptep) do { } while (0)
Index: linux-2.6/arch/xtensa/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/xtensa/include/asm/pgtable.h
+++ linux-2.6/arch/xtensa/include/asm/pgtable.h
@@ -324,10 +324,7 @@ ptep_set_wrprotect(struct mm_struct *mm,
#define pte_offset_kernel(dir,addr) \
((pte_t*) pmd_page_vaddr(*(dir)) + pte_index(addr))
#define pte_offset_map(dir,addr) pte_offset_kernel((dir),(addr))
-#define pte_offset_map_nested(dir,addr) pte_offset_kernel((dir),(addr))
-
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
/*
Index: linux-2.6/mm/memory.c
===================================================================
--- linux-2.6.orig/mm/memory.c
+++ linux-2.6/mm/memory.c
@@ -736,7 +736,7 @@ static int copy_pte_range(struct mm_stru
dst_pte = pte_alloc_map_lock(dst_mm, dst_pmd, addr, &dst_ptl);
if (!dst_pte)
return -ENOMEM;
- src_pte = pte_offset_map_nested(src_pmd, addr);
+ src_pte = pte_offset_map(src_pmd, addr);
src_ptl = pte_lockptr(src_mm, src_pmd);
spin_lock_nested(src_ptl, SINGLE_DEPTH_NESTING);
orig_src_pte = src_pte;
@@ -767,7 +767,7 @@ static int copy_pte_range(struct mm_stru
arch_leave_lazy_mmu_mode();
spin_unlock(src_ptl);
- pte_unmap_nested(orig_src_pte);
+ pte_unmap(orig_src_pte);
add_mm_rss_vec(dst_mm, rss);
pte_unmap_unlock(orig_dst_pte, dst_ptl);
cond_resched();
Index: linux-2.6/mm/mremap.c
===================================================================
--- linux-2.6.orig/mm/mremap.c
+++ linux-2.6/mm/mremap.c
@@ -101,7 +101,7 @@ static void move_ptes(struct vm_area_str
* pte locks because exclusive mmap_sem prevents deadlock.
*/
old_pte = pte_offset_map_lock(mm, old_pmd, old_addr, &old_ptl);
- new_pte = pte_offset_map_nested(new_pmd, new_addr);
+ new_pte = pte_offset_map(new_pmd, new_addr);
new_ptl = pte_lockptr(mm, new_pmd);
if (new_ptl != old_ptl)
spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
@@ -119,7 +119,7 @@ static void move_ptes(struct vm_area_str
arch_leave_lazy_mmu_mode();
if (new_ptl != old_ptl)
spin_unlock(new_ptl);
- pte_unmap_nested(new_pte - 1);
+ pte_unmap(new_pte - 1);
pte_unmap_unlock(old_pte - 1, old_ptl);
if (mapping)
spin_unlock(&mapping->i_mmap_lock);
Index: linux-2.6/arch/tile/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/tile/include/asm/pgtable.h
+++ linux-2.6/arch/tile/include/asm/pgtable.h
@@ -347,15 +347,10 @@ static inline pte_t pte_modify(pte_t pte
extern pte_t *_pte_offset_map(pmd_t *, unsigned long address, enum km_type);
#define pte_offset_map(dir, address) \
_pte_offset_map(dir, address, KM_PTE0)
-#define pte_offset_map_nested(dir, address) \
- _pte_offset_map(dir, address, KM_PTE1)
#define pte_unmap(pte) kunmap_atomic(pte, KM_PTE0)
-#define pte_unmap_nested(pte) kunmap_atomic(pte, KM_PTE1)
#else
#define pte_offset_map(dir, address) pte_offset_kernel(dir, address)
-#define pte_offset_map_nested(dir, address) pte_offset_map(dir, address)
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
#endif
/* Clear a non-executable kernel PTE and flush it from the TLB. */
^ permalink raw reply [flat|nested] 24+ messages in thread
* [PATCH 3/5] mm: Remove pte_*map_nested()
@ 2010-09-18 15:53 ` Peter Zijlstra
0 siblings, 0 replies; 24+ messages in thread
From: Peter Zijlstra @ 2010-09-18 15:53 UTC (permalink / raw)
To: Linus Torvalds
Cc: Andrew Morton, Ingo Molnar, Thomas Gleixner, H. Peter Anvin,
Russell King, David Howells, Ralf Baechle, David Miller,
Chris Metcalf, Paul Mackerras, Benjamin Herrenschmidt,
Hugh Dickins, linux-kernel, linux-mm, linux-arch, Peter Zijlstra
[-- Attachment #1: kmap-pte_nest.patch --]
[-- Type: text/plain, Size: 25620 bytes --]
Since we no longer need to provide KM_type, the whole pte_*map_nested()
API is now redundant, remove it.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
---
arch/alpha/include/asm/pgtable.h | 2 --
arch/arm/include/asm/pgtable.h | 14 ++++++--------
arch/arm/mm/fault-armv.c | 4 ++--
arch/arm/mm/pgd.c | 4 ++--
arch/avr32/include/asm/pgtable.h | 2 --
arch/cris/include/asm/pgtable.h | 2 --
arch/frv/include/asm/pgtable.h | 9 ++-------
arch/ia64/include/asm/pgtable.h | 2 --
arch/m32r/include/asm/pgtable.h | 2 --
arch/m68k/include/asm/motorola_pgtable.h | 2 --
arch/m68k/include/asm/sun3_pgtable.h | 2 --
arch/microblaze/include/asm/pgtable.h | 7 ++-----
arch/mips/include/asm/pgtable-32.h | 3 ---
arch/mips/include/asm/pgtable-64.h | 3 ---
arch/mn10300/include/asm/pgtable.h | 2 --
arch/parisc/include/asm/pgtable.h | 2 --
arch/powerpc/include/asm/pgtable-ppc32.h | 8 ++------
arch/powerpc/include/asm/pgtable-ppc64.h | 2 --
arch/s390/include/asm/pgtable.h | 2 --
arch/score/include/asm/pgtable.h | 3 ---
arch/sh/include/asm/pgtable_32.h | 3 ---
arch/sh/include/asm/pgtable_64.h | 2 --
arch/sparc/include/asm/pgtable_32.h | 3 ---
arch/sparc/include/asm/pgtable_64.h | 2 --
arch/tile/include/asm/pgtable.h | 5 -----
arch/um/include/asm/pgtable.h | 2 --
arch/x86/include/asm/pgtable_32.h | 14 ++------------
arch/x86/include/asm/pgtable_64.h | 2 --
arch/xtensa/include/asm/pgtable.h | 3 ---
mm/memory.c | 4 ++--
mm/mremap.c | 4 ++--
31 files changed, 22 insertions(+), 99 deletions(-)
Index: linux-2.6/arch/alpha/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/alpha/include/asm/pgtable.h
+++ linux-2.6/arch/alpha/include/asm/pgtable.h
@@ -318,9 +318,7 @@ extern inline pte_t * pte_offset_kernel(
}
#define pte_offset_map(dir,addr) pte_offset_kernel((dir),(addr))
-#define pte_offset_map_nested(dir,addr) pte_offset_kernel((dir),(addr))
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
extern pgd_t swapper_pg_dir[1024];
Index: linux-2.6/arch/arm/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/arm/include/asm/pgtable.h
+++ linux-2.6/arch/arm/include/asm/pgtable.h
@@ -263,17 +263,15 @@ extern struct page *empty_zero_page;
#define pte_page(pte) (pfn_to_page(pte_pfn(pte)))
#define pte_offset_kernel(dir,addr) (pmd_page_vaddr(*(dir)) + __pte_index(addr))
-#define pte_offset_map(dir,addr) (__pte_map(dir, KM_PTE0) + __pte_index(addr))
-#define pte_offset_map_nested(dir,addr) (__pte_map(dir, KM_PTE1) + __pte_index(addr))
-#define pte_unmap(pte) __pte_unmap(pte, KM_PTE0)
-#define pte_unmap_nested(pte) __pte_unmap(pte, KM_PTE1)
+#define pte_offset_map(dir,addr) (__pte_map(dir) + __pte_index(addr))
+#define pte_unmap(pte) __pte_unmap(pte)
#ifndef CONFIG_HIGHPTE
-#define __pte_map(dir,km) pmd_page_vaddr(*(dir))
-#define __pte_unmap(pte,km) do { } while (0)
+#define __pte_map(dir) pmd_page_vaddr(*(dir))
+#define __pte_unmap(pte) do { } while (0)
#else
-#define __pte_map(dir,km) ((pte_t *)kmap_atomic(pmd_page(*(dir)), km) + PTRS_PER_PTE)
-#define __pte_unmap(pte,km) kunmap_atomic((pte - PTRS_PER_PTE), km)
+#define __pte_map(dir) ((pte_t *)kmap_atomic(pmd_page(*(dir))) + PTRS_PER_PTE)
+#define __pte_unmap(pte) kunmap_atomic((pte - PTRS_PER_PTE))
#endif
#define set_pte_ext(ptep,pte,ext) cpu_set_pte_ext(ptep,pte,ext)
Index: linux-2.6/arch/arm/mm/fault-armv.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/fault-armv.c
+++ linux-2.6/arch/arm/mm/fault-armv.c
@@ -88,13 +88,13 @@ static int adjust_pte(struct vm_area_str
* open-code the spin-locking.
*/
ptl = pte_lockptr(vma->vm_mm, pmd);
- pte = pte_offset_map_nested(pmd, address);
+ pte = pte_offset_map(pmd, address);
spin_lock(ptl);
ret = do_adjust_pte(vma, address, pfn, pte);
spin_unlock(ptl);
- pte_unmap_nested(pte);
+ pte_unmap(pte);
return ret;
}
Index: linux-2.6/arch/arm/mm/pgd.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/pgd.c
+++ linux-2.6/arch/arm/mm/pgd.c
@@ -57,9 +57,9 @@ pgd_t *get_pgd_slow(struct mm_struct *mm
goto no_pte;
init_pmd = pmd_offset(init_pgd, 0);
- init_pte = pte_offset_map_nested(init_pmd, 0);
+ init_pte = pte_offset_map(init_pmd, 0);
set_pte_ext(new_pte, *init_pte, 0);
- pte_unmap_nested(init_pte);
+ pte_unmap(init_pte);
pte_unmap(new_pte);
}
Index: linux-2.6/arch/avr32/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/avr32/include/asm/pgtable.h
+++ linux-2.6/arch/avr32/include/asm/pgtable.h
@@ -319,9 +319,7 @@ static inline pte_t pte_modify(pte_t pte
#define pte_offset_kernel(dir, address) \
((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address))
#define pte_offset_map(dir, address) pte_offset_kernel(dir, address)
-#define pte_offset_map_nested(dir, address) pte_offset_kernel(dir, address)
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
struct vm_area_struct;
extern void update_mmu_cache(struct vm_area_struct * vma,
Index: linux-2.6/arch/cris/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/cris/include/asm/pgtable.h
+++ linux-2.6/arch/cris/include/asm/pgtable.h
@@ -248,10 +248,8 @@ static inline pgd_t * pgd_offset(const s
((pte_t *) pmd_page_vaddr(*(dir)) + __pte_offset(address))
#define pte_offset_map(dir, address) \
((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
-#define pte_offset_map_nested(dir, address) pte_offset_map(dir, address)
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
#define pte_pfn(x) ((unsigned long)(__va((x).pte)) >> PAGE_SHIFT)
#define pfn_pte(pfn, prot) __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
Index: linux-2.6/arch/frv/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/frv/include/asm/pgtable.h
+++ linux-2.6/arch/frv/include/asm/pgtable.h
@@ -451,17 +451,12 @@ static inline pte_t pte_modify(pte_t pte
#if defined(CONFIG_HIGHPTE)
#define pte_offset_map(dir, address) \
- ((pte_t *)kmap_atomic(pmd_page(*(dir)),KM_PTE0) + pte_index(address))
-#define pte_offset_map_nested(dir, address) \
- ((pte_t *)kmap_atomic(pmd_page(*(dir)),KM_PTE1) + pte_index(address))
-#define pte_unmap(pte) kunmap_atomic(pte, KM_PTE0)
-#define pte_unmap_nested(pte) kunmap_atomic((pte), KM_PTE1)
+ ((pte_t *)kmap_atomic(pmd_page(*(dir))) + pte_index(address))
+#define pte_unmap(pte) kunmap_atomic(pte)
#else
#define pte_offset_map(dir, address) \
((pte_t *)page_address(pmd_page(*(dir))) + pte_index(address))
-#define pte_offset_map_nested(dir, address) pte_offset_map((dir), (address))
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
#endif
/*
Index: linux-2.6/arch/ia64/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/ia64/include/asm/pgtable.h
+++ linux-2.6/arch/ia64/include/asm/pgtable.h
@@ -406,9 +406,7 @@ pgd_offset (const struct mm_struct *mm,
#define pte_index(addr) (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
#define pte_offset_kernel(dir,addr) ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(addr))
#define pte_offset_map(dir,addr) pte_offset_kernel(dir, addr)
-#define pte_offset_map_nested(dir,addr) pte_offset_map(dir, addr)
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
/* atomic versions of the some PTE manipulations: */
Index: linux-2.6/arch/m32r/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/m32r/include/asm/pgtable.h
+++ linux-2.6/arch/m32r/include/asm/pgtable.h
@@ -332,9 +332,7 @@ static inline void pmd_set(pmd_t * pmdp,
((pte_t *)pmd_page_vaddr(*(dir)) + pte_index(address))
#define pte_offset_map(dir, address) \
((pte_t *)page_address(pmd_page(*(dir))) + pte_index(address))
-#define pte_offset_map_nested(dir, address) pte_offset_map(dir, address)
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
/* Encode and de-code a swap entry */
#define __swp_type(x) (((x).val >> 2) & 0x1f)
Index: linux-2.6/arch/m68k/include/asm/motorola_pgtable.h
===================================================================
--- linux-2.6.orig/arch/m68k/include/asm/motorola_pgtable.h
+++ linux-2.6/arch/m68k/include/asm/motorola_pgtable.h
@@ -221,9 +221,7 @@ static inline pte_t *pte_offset_kernel(p
}
#define pte_offset_map(pmdp,address) ((pte_t *)__pmd_page(*pmdp) + (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)))
-#define pte_offset_map_nested(pmdp, address) pte_offset_map(pmdp, address)
#define pte_unmap(pte) ((void)0)
-#define pte_unmap_nested(pte) ((void)0)
/*
* Allocate and free page tables. The xxx_kernel() versions are
Index: linux-2.6/arch/m68k/include/asm/sun3_pgtable.h
===================================================================
--- linux-2.6.orig/arch/m68k/include/asm/sun3_pgtable.h
+++ linux-2.6/arch/m68k/include/asm/sun3_pgtable.h
@@ -219,9 +219,7 @@ static inline pte_t pgoff_to_pte(unsigne
#define pte_offset_kernel(pmd, address) ((pte_t *) __pmd_page(*pmd) + pte_index(address))
/* FIXME: should we bother with kmap() here? */
#define pte_offset_map(pmd, address) ((pte_t *)kmap(pmd_page(*pmd)) + pte_index(address))
-#define pte_offset_map_nested(pmd, address) pte_offset_map(pmd, address)
#define pte_unmap(pte) kunmap(pte)
-#define pte_unmap_nested(pte) kunmap(pte)
/* Macros to (de)construct the fake PTEs representing swap pages. */
#define __swp_type(x) ((x).val & 0x7F)
Index: linux-2.6/arch/microblaze/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/microblaze/include/asm/pgtable.h
+++ linux-2.6/arch/microblaze/include/asm/pgtable.h
@@ -497,12 +497,9 @@ static inline pmd_t *pmd_offset(pgd_t *d
#define pte_offset_kernel(dir, addr) \
((pte_t *) pmd_page_kernel(*(dir)) + pte_index(addr))
#define pte_offset_map(dir, addr) \
- ((pte_t *) kmap_atomic(pmd_page(*(dir)), KM_PTE0) + pte_index(addr))
-#define pte_offset_map_nested(dir, addr) \
- ((pte_t *) kmap_atomic(pmd_page(*(dir)), KM_PTE1) + pte_index(addr))
+ ((pte_t *) kmap_atomic(pmd_page(*(dir))) + pte_index(addr))
-#define pte_unmap(pte) kunmap_atomic(pte, KM_PTE0)
-#define pte_unmap_nested(pte) kunmap_atomic(pte, KM_PTE1)
+#define pte_unmap(pte) kunmap_atomic(pte)
/* Encode and decode a nonlinear file mapping entry */
#define PTE_FILE_MAX_BITS 29
Index: linux-2.6/arch/mips/include/asm/pgtable-32.h
===================================================================
--- linux-2.6.orig/arch/mips/include/asm/pgtable-32.h
+++ linux-2.6/arch/mips/include/asm/pgtable-32.h
@@ -154,10 +154,7 @@ pfn_pte(unsigned long pfn, pgprot_t prot
#define pte_offset_map(dir, address) \
((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
-#define pte_offset_map_nested(dir, address) \
- ((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
#define pte_unmap(pte) ((void)(pte))
-#define pte_unmap_nested(pte) ((void)(pte))
#if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
Index: linux-2.6/arch/mips/include/asm/pgtable-64.h
===================================================================
--- linux-2.6.orig/arch/mips/include/asm/pgtable-64.h
+++ linux-2.6/arch/mips/include/asm/pgtable-64.h
@@ -257,10 +257,7 @@ static inline pmd_t *pmd_offset(pud_t *
((pte_t *) pmd_page_vaddr(*(dir)) + __pte_offset(address))
#define pte_offset_map(dir, address) \
((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
-#define pte_offset_map_nested(dir, address) \
- ((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
#define pte_unmap(pte) ((void)(pte))
-#define pte_unmap_nested(pte) ((void)(pte))
/*
* Initialize a new pgd / pmd table with invalid pointers.
Index: linux-2.6/arch/mn10300/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/mn10300/include/asm/pgtable.h
+++ linux-2.6/arch/mn10300/include/asm/pgtable.h
@@ -457,9 +457,7 @@ static inline int set_kernel_exec(unsign
#define pte_offset_map(dir, address) \
((pte_t *) page_address(pmd_page(*(dir))) + pte_index(address))
-#define pte_offset_map_nested(dir, address) pte_offset_map(dir, address)
#define pte_unmap(pte) do {} while (0)
-#define pte_unmap_nested(pte) do {} while (0)
/*
* The MN10300 has external MMU info in the form of a TLB: this is adapted from
Index: linux-2.6/arch/parisc/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/parisc/include/asm/pgtable.h
+++ linux-2.6/arch/parisc/include/asm/pgtable.h
@@ -397,9 +397,7 @@ static inline pte_t pte_modify(pte_t pte
#define pte_offset_kernel(pmd, address) \
((pte_t *) pmd_page_vaddr(*(pmd)) + pte_index(address))
#define pte_offset_map(pmd, address) pte_offset_kernel(pmd, address)
-#define pte_offset_map_nested(pmd, address) pte_offset_kernel(pmd, address)
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
#define pte_unmap(pte) do { } while (0)
#define pte_unmap_nested(pte) do { } while (0)
Index: linux-2.6/arch/powerpc/include/asm/pgtable-ppc32.h
===================================================================
--- linux-2.6.orig/arch/powerpc/include/asm/pgtable-ppc32.h
+++ linux-2.6/arch/powerpc/include/asm/pgtable-ppc32.h
@@ -308,12 +308,8 @@ static inline void __ptep_set_access_fla
#define pte_offset_kernel(dir, addr) \
((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(addr))
#define pte_offset_map(dir, addr) \
- ((pte_t *) kmap_atomic(pmd_page(*(dir)), KM_PTE0) + pte_index(addr))
-#define pte_offset_map_nested(dir, addr) \
- ((pte_t *) kmap_atomic(pmd_page(*(dir)), KM_PTE1) + pte_index(addr))
-
-#define pte_unmap(pte) kunmap_atomic(pte, KM_PTE0)
-#define pte_unmap_nested(pte) kunmap_atomic(pte, KM_PTE1)
+ ((pte_t *) kmap_atomic(pmd_page(*(dir))) + pte_index(addr))
+#define pte_unmap(pte) kunmap_atomic(pte)
/*
* Encode and decode a swap entry.
Index: linux-2.6/arch/powerpc/include/asm/pgtable-ppc64.h
===================================================================
--- linux-2.6.orig/arch/powerpc/include/asm/pgtable-ppc64.h
+++ linux-2.6/arch/powerpc/include/asm/pgtable-ppc64.h
@@ -193,9 +193,7 @@
(((pte_t *) pmd_page_vaddr(*(dir))) + (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)))
#define pte_offset_map(dir,addr) pte_offset_kernel((dir), (addr))
-#define pte_offset_map_nested(dir,addr) pte_offset_kernel((dir), (addr))
#define pte_unmap(pte) do { } while(0)
-#define pte_unmap_nested(pte) do { } while(0)
/* to find an entry in a kernel page-table-directory */
/* This now only contains the vmalloc pages */
Index: linux-2.6/arch/s390/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/s390/include/asm/pgtable.h
+++ linux-2.6/arch/s390/include/asm/pgtable.h
@@ -1048,9 +1048,7 @@ static inline pmd_t *pmd_offset(pud_t *p
#define pte_offset(pmd, addr) ((pte_t *) pmd_deref(*(pmd)) + pte_index(addr))
#define pte_offset_kernel(pmd, address) pte_offset(pmd,address)
#define pte_offset_map(pmd, address) pte_offset_kernel(pmd, address)
-#define pte_offset_map_nested(pmd, address) pte_offset_kernel(pmd, address)
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
/*
* 31 bit swap entry format:
Index: linux-2.6/arch/score/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/score/include/asm/pgtable.h
+++ linux-2.6/arch/score/include/asm/pgtable.h
@@ -88,10 +88,7 @@ static inline void pmd_clear(pmd_t *pmdp
#define pte_offset_map(dir, address) \
((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
-#define pte_offset_map_nested(dir, address) \
- ((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
#define pte_unmap(pte) ((void)(pte))
-#define pte_unmap_nested(pte) ((void)(pte))
/*
* Bits 9(_PAGE_PRESENT) and 10(_PAGE_FILE)are taken,
Index: linux-2.6/arch/sh/include/asm/pgtable_32.h
===================================================================
--- linux-2.6.orig/arch/sh/include/asm/pgtable_32.h
+++ linux-2.6/arch/sh/include/asm/pgtable_32.h
@@ -429,10 +429,7 @@ static inline pte_t pte_modify(pte_t pte
#define pte_offset_kernel(dir, address) \
((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address))
#define pte_offset_map(dir, address) pte_offset_kernel(dir, address)
-#define pte_offset_map_nested(dir, address) pte_offset_kernel(dir, address)
-
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
#ifdef CONFIG_X2TLB
#define pte_ERROR(e) \
Index: linux-2.6/arch/sh/include/asm/pgtable_64.h
===================================================================
--- linux-2.6.orig/arch/sh/include/asm/pgtable_64.h
+++ linux-2.6/arch/sh/include/asm/pgtable_64.h
@@ -84,9 +84,7 @@ static __inline__ void set_pte(pte_t *pt
((pte_t *) ((pmd_val(*(dir))) & PAGE_MASK) + pte_index((addr)))
#define pte_offset_map(dir,addr) pte_offset_kernel(dir, addr)
-#define pte_offset_map_nested(dir,addr) pte_offset_kernel(dir, addr)
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
#ifndef __ASSEMBLY__
#define IOBASE_VADDR 0xff000000
Index: linux-2.6/arch/sparc/include/asm/pgtable_32.h
===================================================================
--- linux-2.6.orig/arch/sparc/include/asm/pgtable_32.h
+++ linux-2.6/arch/sparc/include/asm/pgtable_32.h
@@ -304,10 +304,7 @@ BTFIXUPDEF_CALL(pte_t *, pte_offset_kern
* and sun4c is guaranteed to have no highmem anyway.
*/
#define pte_offset_map(d, a) pte_offset_kernel(d,a)
-#define pte_offset_map_nested(d, a) pte_offset_kernel(d,a)
-
#define pte_unmap(pte) do{}while(0)
-#define pte_unmap_nested(pte) do{}while(0)
/* Certain architectures need to do special things when pte's
* within a page table are directly modified. Thus, the following
Index: linux-2.6/arch/sparc/include/asm/pgtable_64.h
===================================================================
--- linux-2.6.orig/arch/sparc/include/asm/pgtable_64.h
+++ linux-2.6/arch/sparc/include/asm/pgtable_64.h
@@ -652,9 +652,7 @@ static inline int pte_special(pte_t pte)
((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)))
#define pte_offset_kernel pte_index
#define pte_offset_map pte_index
-#define pte_offset_map_nested pte_index
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
/* Actual page table PTE updates. */
extern void tlb_batch_add(struct mm_struct *mm, unsigned long vaddr, pte_t *ptep, pte_t orig);
Index: linux-2.6/arch/um/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/um/include/asm/pgtable.h
+++ linux-2.6/arch/um/include/asm/pgtable.h
@@ -338,9 +338,7 @@ static inline pte_t pte_modify(pte_t pte
((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address))
#define pte_offset_map(dir, address) \
((pte_t *)page_address(pmd_page(*(dir))) + pte_index(address))
-#define pte_offset_map_nested(dir, address) pte_offset_map(dir, address)
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
struct mm_struct;
extern pte_t *virt_to_pte(struct mm_struct *mm, unsigned long addr);
Index: linux-2.6/arch/x86/include/asm/pgtable_32.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/pgtable_32.h
+++ linux-2.6/arch/x86/include/asm/pgtable_32.h
@@ -49,24 +49,14 @@ extern void set_pmd_pfn(unsigned long, u
#endif
#if defined(CONFIG_HIGHPTE)
-#define __KM_PTE \
- (in_nmi() ? KM_NMI_PTE : \
- in_irq() ? KM_IRQ_PTE : \
- KM_PTE0)
#define pte_offset_map(dir, address) \
- ((pte_t *)kmap_atomic(pmd_page(*(dir)), __KM_PTE) + \
+ ((pte_t *)kmap_atomic(pmd_page(*(dir))) + \
pte_index((address)))
-#define pte_offset_map_nested(dir, address) \
- ((pte_t *)kmap_atomic(pmd_page(*(dir)), KM_PTE1) + \
- pte_index((address)))
-#define pte_unmap(pte) kunmap_atomic((pte), __KM_PTE)
-#define pte_unmap_nested(pte) kunmap_atomic((pte), KM_PTE1)
+#define pte_unmap(pte) kunmap_atomic((pte))
#else
#define pte_offset_map(dir, address) \
((pte_t *)page_address(pmd_page(*(dir))) + pte_index((address)))
-#define pte_offset_map_nested(dir, address) pte_offset_map((dir), (address))
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
#endif
/* Clear a kernel PTE and flush it from the TLB */
Index: linux-2.6/arch/x86/include/asm/pgtable_64.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/pgtable_64.h
+++ linux-2.6/arch/x86/include/asm/pgtable_64.h
@@ -127,9 +127,7 @@ static inline int pgd_large(pgd_t pgd) {
/* x86-64 always has all page tables mapped. */
#define pte_offset_map(dir, address) pte_offset_kernel((dir), (address))
-#define pte_offset_map_nested(dir, address) pte_offset_kernel((dir), (address))
#define pte_unmap(pte) ((void)(pte))/* NOP */
-#define pte_unmap_nested(pte) ((void)(pte)) /* NOP */
#define update_mmu_cache(vma, address, ptep) do { } while (0)
Index: linux-2.6/arch/xtensa/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/xtensa/include/asm/pgtable.h
+++ linux-2.6/arch/xtensa/include/asm/pgtable.h
@@ -324,10 +324,7 @@ ptep_set_wrprotect(struct mm_struct *mm,
#define pte_offset_kernel(dir,addr) \
((pte_t*) pmd_page_vaddr(*(dir)) + pte_index(addr))
#define pte_offset_map(dir,addr) pte_offset_kernel((dir),(addr))
-#define pte_offset_map_nested(dir,addr) pte_offset_kernel((dir),(addr))
-
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
/*
Index: linux-2.6/mm/memory.c
===================================================================
--- linux-2.6.orig/mm/memory.c
+++ linux-2.6/mm/memory.c
@@ -736,7 +736,7 @@ static int copy_pte_range(struct mm_stru
dst_pte = pte_alloc_map_lock(dst_mm, dst_pmd, addr, &dst_ptl);
if (!dst_pte)
return -ENOMEM;
- src_pte = pte_offset_map_nested(src_pmd, addr);
+ src_pte = pte_offset_map(src_pmd, addr);
src_ptl = pte_lockptr(src_mm, src_pmd);
spin_lock_nested(src_ptl, SINGLE_DEPTH_NESTING);
orig_src_pte = src_pte;
@@ -767,7 +767,7 @@ static int copy_pte_range(struct mm_stru
arch_leave_lazy_mmu_mode();
spin_unlock(src_ptl);
- pte_unmap_nested(orig_src_pte);
+ pte_unmap(orig_src_pte);
add_mm_rss_vec(dst_mm, rss);
pte_unmap_unlock(orig_dst_pte, dst_ptl);
cond_resched();
Index: linux-2.6/mm/mremap.c
===================================================================
--- linux-2.6.orig/mm/mremap.c
+++ linux-2.6/mm/mremap.c
@@ -101,7 +101,7 @@ static void move_ptes(struct vm_area_str
* pte locks because exclusive mmap_sem prevents deadlock.
*/
old_pte = pte_offset_map_lock(mm, old_pmd, old_addr, &old_ptl);
- new_pte = pte_offset_map_nested(new_pmd, new_addr);
+ new_pte = pte_offset_map(new_pmd, new_addr);
new_ptl = pte_lockptr(mm, new_pmd);
if (new_ptl != old_ptl)
spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
@@ -119,7 +119,7 @@ static void move_ptes(struct vm_area_str
arch_leave_lazy_mmu_mode();
if (new_ptl != old_ptl)
spin_unlock(new_ptl);
- pte_unmap_nested(new_pte - 1);
+ pte_unmap(new_pte - 1);
pte_unmap_unlock(old_pte - 1, old_ptl);
if (mapping)
spin_unlock(&mapping->i_mmap_lock);
Index: linux-2.6/arch/tile/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/tile/include/asm/pgtable.h
+++ linux-2.6/arch/tile/include/asm/pgtable.h
@@ -347,15 +347,10 @@ static inline pte_t pte_modify(pte_t pte
extern pte_t *_pte_offset_map(pmd_t *, unsigned long address, enum km_type);
#define pte_offset_map(dir, address) \
_pte_offset_map(dir, address, KM_PTE0)
-#define pte_offset_map_nested(dir, address) \
- _pte_offset_map(dir, address, KM_PTE1)
#define pte_unmap(pte) kunmap_atomic(pte, KM_PTE0)
-#define pte_unmap_nested(pte) kunmap_atomic(pte, KM_PTE1)
#else
#define pte_offset_map(dir, address) pte_offset_kernel(dir, address)
-#define pte_offset_map_nested(dir, address) pte_offset_map(dir, address)
#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
#endif
/* Clear a non-executable kernel PTE and flush it from the TLB. */
--
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^ permalink raw reply [flat|nested] 24+ messages in thread
* [PATCH 4/5] perf, x86: Fix up kmap_atomic type
2010-09-18 15:53 ` Peter Zijlstra
@ 2010-09-18 15:53 ` Peter Zijlstra
-1 siblings, 0 replies; 24+ messages in thread
From: Peter Zijlstra @ 2010-09-18 15:53 UTC (permalink / raw)
To: Linus Torvalds
Cc: Andrew Morton, Ingo Molnar, Thomas Gleixner, H. Peter Anvin,
Russell King, David Howells, Ralf Baechle, David Miller,
Chris Metcalf, Paul Mackerras, Benjamin Herrenschmidt,
Hugh Dickins, linux-kernel, linux-mm, linux-arch, Peter Zijlstra
[-- Attachment #1: kmap-x86-perf.patch --]
[-- Type: text/plain, Size: 1091 bytes --]
Now that the KM_type stuff is history, clean up the compiler warning.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
---
arch/x86/kernel/cpu/perf_event.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
Index: linux-2.6/arch/x86/kernel/cpu/perf_event.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/cpu/perf_event.c
+++ linux-2.6/arch/x86/kernel/cpu/perf_event.c
@@ -49,7 +49,6 @@ static unsigned long
copy_from_user_nmi(void *to, const void __user *from, unsigned long n)
{
unsigned long offset, addr = (unsigned long)from;
- int type = in_nmi() ? KM_NMI : KM_IRQ0;
unsigned long size, len = 0;
struct page *page;
void *map;
@@ -63,9 +62,9 @@ copy_from_user_nmi(void *to, const void
offset = addr & (PAGE_SIZE - 1);
size = min(PAGE_SIZE - offset, n - len);
- map = kmap_atomic(page, type);
+ map = kmap_atomic(page);
memcpy(to, map+offset, size);
- kunmap_atomic(map, type);
+ kunmap_atomic(map);
put_page(page);
len += size;
^ permalink raw reply [flat|nested] 24+ messages in thread
* [PATCH 4/5] perf, x86: Fix up kmap_atomic type
@ 2010-09-18 15:53 ` Peter Zijlstra
0 siblings, 0 replies; 24+ messages in thread
From: Peter Zijlstra @ 2010-09-18 15:53 UTC (permalink / raw)
To: Linus Torvalds
Cc: Andrew Morton, Ingo Molnar, Thomas Gleixner, H. Peter Anvin,
Russell King, David Howells, Ralf Baechle, David Miller,
Chris Metcalf, Paul Mackerras, Benjamin Herrenschmidt,
Hugh Dickins, linux-kernel, linux-mm, linux-arch, Peter Zijlstra
[-- Attachment #1: kmap-x86-perf.patch --]
[-- Type: text/plain, Size: 1316 bytes --]
Now that the KM_type stuff is history, clean up the compiler warning.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
---
arch/x86/kernel/cpu/perf_event.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
Index: linux-2.6/arch/x86/kernel/cpu/perf_event.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/cpu/perf_event.c
+++ linux-2.6/arch/x86/kernel/cpu/perf_event.c
@@ -49,7 +49,6 @@ static unsigned long
copy_from_user_nmi(void *to, const void __user *from, unsigned long n)
{
unsigned long offset, addr = (unsigned long)from;
- int type = in_nmi() ? KM_NMI : KM_IRQ0;
unsigned long size, len = 0;
struct page *page;
void *map;
@@ -63,9 +62,9 @@ copy_from_user_nmi(void *to, const void
offset = addr & (PAGE_SIZE - 1);
size = min(PAGE_SIZE - offset, n - len);
- map = kmap_atomic(page, type);
+ map = kmap_atomic(page);
memcpy(to, map+offset, size);
- kunmap_atomic(map, type);
+ kunmap_atomic(map);
put_page(page);
len += size;
--
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the body to majordomo@kvack.org. For more info on Linux MM,
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^ permalink raw reply [flat|nested] 24+ messages in thread
* [PATCH 5/5] mm: highmem documentation
2010-09-18 15:53 ` Peter Zijlstra
@ 2010-09-18 15:53 ` Peter Zijlstra
-1 siblings, 0 replies; 24+ messages in thread
From: Peter Zijlstra @ 2010-09-18 15:53 UTC (permalink / raw)
To: Linus Torvalds
Cc: Andrew Morton, Ingo Molnar, Thomas Gleixner, H. Peter Anvin,
Russell King, David Howells, Ralf Baechle, David Miller,
Chris Metcalf, Paul Mackerras, Benjamin Herrenschmidt,
Hugh Dickins, linux-kernel, linux-mm, linux-arch, Peter Zijlstra
[-- Attachment #1: kmap-doc.patch --]
[-- Type: text/plain, Size: 6517 bytes --]
Document outlining some of the highmem issues, started by me, edited by David.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
---
Documentation/vm/highmem.txt | 163 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 163 insertions(+)
Index: linux-2.6/Documentation/vm/highmem.txt
===================================================================
--- /dev/null
+++ linux-2.6/Documentation/vm/highmem.txt
@@ -0,0 +1,163 @@
+
+ ====================
+ HIGH MEMORY HANDLING
+ ====================
+
+By: Peter Zijlstra <a.p.zijlstra@chello.nl>
+
+Contents:
+
+ (*) What is high memory?
+
+ (*) Temporary virtual mappings.
+
+ (*) Using kmap_atomic.
+
+ (*) Cost of temporary mappings.
+
+ (*) i386 PAE.
+
+
+====================
+WHAT IS HIGH MEMORY?
+====================
+
+High memory (highmem) is used when the size of physical memory approaches or
+exceeds the maximum size of virtual memory. At that point it becomes
+impossible for the kernel to keep all of the available physical memory mapped
+at all times. This means the kernel needs to start using temporary mappings of
+the pieces of physical memory that it wants to access.
+
+The part of (physical) memory not covered by a permanent mapping is what we
+refer to as 'highmem'. There are various architecture dependent constraints on
+where exactly that border lies.
+
+In the i386 arch, for example, we choose to map the kernel into every process's
+VM space so that we don't have to pay the full TLB invalidation costs for
+kernel entry/exit. This means the available virtual memory space (4GiB on
+i386) has to be divided between user and kernel space.
+
+The traditional split for architectures using this approach is 3:1, 3GiB for
+userspace and the top 1GiB for kernel space:
+
+ +--------+ 0xffffffff
+ | Kernel |
+ +--------+ 0xc0000000
+ | |
+ | User |
+ | |
+ +--------+ 0x00000000
+
+This means that the kernel can at most map 1GiB of physical memory at any one
+time, but because we need virtual address space for other things - including
+temporary maps to access the rest of the physical memory - the actual direct
+map will typically be less (usually around ~896MiB).
+
+Other architectures that have mm context tagged TLBs can have separate kernel
+and user maps. Some hardware (like some ARMs), however, have limited virtual
+space when they use mm context tags.
+
+
+==========================
+TEMPORARY VIRTUAL MAPPINGS
+==========================
+
+The kernel contains several ways of creating temporary mappings:
+
+ (*) vmap(). This can be used to make a long duration mapping of multiple
+ physical pages into a contiguous virtual space. It needs global
+ synchronization to unmap.
+
+ (*) kmap(). This permits a short duration mapping of a single page. It needs
+ global synchronization, but is amortized somewhat. It is also prone to
+ deadlocks when using in a nested fashion, and so it is not recommended for
+ new code.
+
+ (*) kmap_atomic(). This permits a very short duration mapping of a single
+ page. Since the mapping is restricted to the CPU that issued it, it
+ performs well, but the issuing task is therefore required to stay on that
+ CPU until it has finished, lest some other task displace its mappings.
+
+ kmap_atomic() may also be used by interrupt contexts, since it is does not
+ sleep and the caller may not sleep until after kunmap_atomic() is called.
+
+ It may be assumed that k[un]map_atomic() won't fail.
+
+
+=================
+USING KMAP_ATOMIC
+=================
+
+When and where to use kmap_atomic() is straightforward. It is used when code
+wants to access the contents of a page that might be allocated from high memory
+(see __GFP_HIGHMEM), for example a page in the pagecache. The API has two
+functions, and they can be used in a manner similar to the following:
+
+ /* Find the page of interest. */
+ struct page *page = find_get_page(mapping, offset);
+
+ /* Gain access to the contents of that page. */
+ void *vaddr = kmap_atomic(page);
+
+ /* Do something to the contents of that page. */
+ memset(vaddr, 0, PAGE_SIZE);
+
+ /* Unmap that page. */
+ kunmap_atomic(vaddr);
+
+Note that the kunmap_atomic() call takes the result of the kmap_atomic() call
+not the argument.
+
+If you need to map two pages because you want to copy from one page to
+another you need to keep the kmap_atomic calls strictly nested, like:
+
+ vaddr1 = kmap_atomic(page1);
+ vaddr2 = kmap_atomic(page2);
+
+ memcpy(vaddr1, vaddr2, PAGE_SIZE);
+
+ kunmap_atomic(vaddr2);
+ kunmap_atomic(vaddr1);
+
+
+==========================
+COST OF TEMPORARY MAPPINGS
+==========================
+
+The cost of creating temporary mappings can be quite high. The arch has to
+manipulate the kernel's page tables, the data TLB and/or the MMU's registers.
+
+If CONFIG_HIGHMEM is not set, then the kernel will try and create a mapping
+simply with a bit of arithmetic that will convert the page struct address into
+a pointer to the page contents rather than juggling mappings about. In such a
+case, the unmap operation may be a null operation.
+
+If CONFIG_MMU is not set, then there can be no temporary mappings and no
+highmem. In such a case, the arithmetic approach will also be used.
+
+
+========
+i386 PAE
+========
+
+The i386 arch, under some circumstances, will permit you to stick up to 64GiB
+of RAM into your 32-bit machine. This has a number of consequences:
+
+ (*) Linux needs a page-frame structure for each page in the system and the
+ pageframes need to live in the permanent mapping, which means:
+
+ (*) you can have 896M/sizeof(struct page) page-frames at most; with struct
+ page being 32-bytes that would end up being something in the order of 112G
+ worth of pages; the kernel, however, needs to store more than just
+ page-frames in that memory...
+
+ (*) PAE makes your page tables larger - which slows the system down as more
+ data has to be accessed to traverse in TLB fills and the like. One
+ advantage is that PAE has more PTE bits and can provide advanced features
+ like NX and PAT.
+
+The general recommendation is that you don't use more than 8GiB on a 32-bit
+machine - although more might work for you and your workload, you're pretty
+much on your own - don't expect kernel developers to really care much if things
+come apart.
+
^ permalink raw reply [flat|nested] 24+ messages in thread
* [PATCH 5/5] mm: highmem documentation
@ 2010-09-18 15:53 ` Peter Zijlstra
0 siblings, 0 replies; 24+ messages in thread
From: Peter Zijlstra @ 2010-09-18 15:53 UTC (permalink / raw)
To: Linus Torvalds
Cc: Andrew Morton, Ingo Molnar, Thomas Gleixner, H. Peter Anvin,
Russell King, David Howells, Ralf Baechle, David Miller,
Chris Metcalf, Paul Mackerras, Benjamin Herrenschmidt,
Hugh Dickins, linux-kernel, linux-mm, linux-arch, Peter Zijlstra
[-- Attachment #1: kmap-doc.patch --]
[-- Type: text/plain, Size: 6742 bytes --]
Document outlining some of the highmem issues, started by me, edited by David.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
---
Documentation/vm/highmem.txt | 163 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 163 insertions(+)
Index: linux-2.6/Documentation/vm/highmem.txt
===================================================================
--- /dev/null
+++ linux-2.6/Documentation/vm/highmem.txt
@@ -0,0 +1,163 @@
+
+ ====================
+ HIGH MEMORY HANDLING
+ ====================
+
+By: Peter Zijlstra <a.p.zijlstra@chello.nl>
+
+Contents:
+
+ (*) What is high memory?
+
+ (*) Temporary virtual mappings.
+
+ (*) Using kmap_atomic.
+
+ (*) Cost of temporary mappings.
+
+ (*) i386 PAE.
+
+
+====================
+WHAT IS HIGH MEMORY?
+====================
+
+High memory (highmem) is used when the size of physical memory approaches or
+exceeds the maximum size of virtual memory. At that point it becomes
+impossible for the kernel to keep all of the available physical memory mapped
+at all times. This means the kernel needs to start using temporary mappings of
+the pieces of physical memory that it wants to access.
+
+The part of (physical) memory not covered by a permanent mapping is what we
+refer to as 'highmem'. There are various architecture dependent constraints on
+where exactly that border lies.
+
+In the i386 arch, for example, we choose to map the kernel into every process's
+VM space so that we don't have to pay the full TLB invalidation costs for
+kernel entry/exit. This means the available virtual memory space (4GiB on
+i386) has to be divided between user and kernel space.
+
+The traditional split for architectures using this approach is 3:1, 3GiB for
+userspace and the top 1GiB for kernel space:
+
+ +--------+ 0xffffffff
+ | Kernel |
+ +--------+ 0xc0000000
+ | |
+ | User |
+ | |
+ +--------+ 0x00000000
+
+This means that the kernel can at most map 1GiB of physical memory at any one
+time, but because we need virtual address space for other things - including
+temporary maps to access the rest of the physical memory - the actual direct
+map will typically be less (usually around ~896MiB).
+
+Other architectures that have mm context tagged TLBs can have separate kernel
+and user maps. Some hardware (like some ARMs), however, have limited virtual
+space when they use mm context tags.
+
+
+==========================
+TEMPORARY VIRTUAL MAPPINGS
+==========================
+
+The kernel contains several ways of creating temporary mappings:
+
+ (*) vmap(). This can be used to make a long duration mapping of multiple
+ physical pages into a contiguous virtual space. It needs global
+ synchronization to unmap.
+
+ (*) kmap(). This permits a short duration mapping of a single page. It needs
+ global synchronization, but is amortized somewhat. It is also prone to
+ deadlocks when using in a nested fashion, and so it is not recommended for
+ new code.
+
+ (*) kmap_atomic(). This permits a very short duration mapping of a single
+ page. Since the mapping is restricted to the CPU that issued it, it
+ performs well, but the issuing task is therefore required to stay on that
+ CPU until it has finished, lest some other task displace its mappings.
+
+ kmap_atomic() may also be used by interrupt contexts, since it is does not
+ sleep and the caller may not sleep until after kunmap_atomic() is called.
+
+ It may be assumed that k[un]map_atomic() won't fail.
+
+
+=================
+USING KMAP_ATOMIC
+=================
+
+When and where to use kmap_atomic() is straightforward. It is used when code
+wants to access the contents of a page that might be allocated from high memory
+(see __GFP_HIGHMEM), for example a page in the pagecache. The API has two
+functions, and they can be used in a manner similar to the following:
+
+ /* Find the page of interest. */
+ struct page *page = find_get_page(mapping, offset);
+
+ /* Gain access to the contents of that page. */
+ void *vaddr = kmap_atomic(page);
+
+ /* Do something to the contents of that page. */
+ memset(vaddr, 0, PAGE_SIZE);
+
+ /* Unmap that page. */
+ kunmap_atomic(vaddr);
+
+Note that the kunmap_atomic() call takes the result of the kmap_atomic() call
+not the argument.
+
+If you need to map two pages because you want to copy from one page to
+another you need to keep the kmap_atomic calls strictly nested, like:
+
+ vaddr1 = kmap_atomic(page1);
+ vaddr2 = kmap_atomic(page2);
+
+ memcpy(vaddr1, vaddr2, PAGE_SIZE);
+
+ kunmap_atomic(vaddr2);
+ kunmap_atomic(vaddr1);
+
+
+==========================
+COST OF TEMPORARY MAPPINGS
+==========================
+
+The cost of creating temporary mappings can be quite high. The arch has to
+manipulate the kernel's page tables, the data TLB and/or the MMU's registers.
+
+If CONFIG_HIGHMEM is not set, then the kernel will try and create a mapping
+simply with a bit of arithmetic that will convert the page struct address into
+a pointer to the page contents rather than juggling mappings about. In such a
+case, the unmap operation may be a null operation.
+
+If CONFIG_MMU is not set, then there can be no temporary mappings and no
+highmem. In such a case, the arithmetic approach will also be used.
+
+
+========
+i386 PAE
+========
+
+The i386 arch, under some circumstances, will permit you to stick up to 64GiB
+of RAM into your 32-bit machine. This has a number of consequences:
+
+ (*) Linux needs a page-frame structure for each page in the system and the
+ pageframes need to live in the permanent mapping, which means:
+
+ (*) you can have 896M/sizeof(struct page) page-frames at most; with struct
+ page being 32-bytes that would end up being something in the order of 112G
+ worth of pages; the kernel, however, needs to store more than just
+ page-frames in that memory...
+
+ (*) PAE makes your page tables larger - which slows the system down as more
+ data has to be accessed to traverse in TLB fills and the like. One
+ advantage is that PAE has more PTE bits and can provide advanced features
+ like NX and PAT.
+
+The general recommendation is that you don't use more than 8GiB on a 32-bit
+machine - although more might work for you and your workload, you're pretty
+much on your own - don't expect kernel developers to really care much if things
+come apart.
+
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH 2/5] mm: stack based kmap_atomic
2010-09-18 15:53 ` Peter Zijlstra
@ 2010-09-19 17:01 ` Linus Torvalds
-1 siblings, 0 replies; 24+ messages in thread
From: Linus Torvalds @ 2010-09-19 17:01 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Andrew Morton, Ingo Molnar, Thomas Gleixner, H. Peter Anvin,
Russell King, David Howells, Ralf Baechle, David Miller,
Chris Metcalf, Paul Mackerras, Benjamin Herrenschmidt,
Hugh Dickins, linux-kernel, linux-mm, linux-arch, Rik van Riel
On Sat, Sep 18, 2010 at 8:53 AM, Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
>
> usr/src/linux-2.6/drivers/gpu/drm/nouveau/nouveau_bios.c | 6832 ---------------
> 29 files changed, 361 insertions(+), 7195 deletions(-)
What's that odd 'usr/src/linux-2.6' file that you have and removed?
You're using some seriously broken SCM there.
Linus
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH 2/5] mm: stack based kmap_atomic
@ 2010-09-19 17:01 ` Linus Torvalds
0 siblings, 0 replies; 24+ messages in thread
From: Linus Torvalds @ 2010-09-19 17:01 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Andrew Morton, Ingo Molnar, Thomas Gleixner, H. Peter Anvin,
Russell King, David Howells, Ralf Baechle, David Miller,
Chris Metcalf, Paul Mackerras, Benjamin Herrenschmidt,
Hugh Dickins, linux-kernel, linux-mm, linux-arch, Rik van Riel
On Sat, Sep 18, 2010 at 8:53 AM, Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
>
> usr/src/linux-2.6/drivers/gpu/drm/nouveau/nouveau_bios.c | 6832 ---------------
> 29 files changed, 361 insertions(+), 7195 deletions(-)
What's that odd 'usr/src/linux-2.6' file that you have and removed?
You're using some seriously broken SCM there.
Linus
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH 2/5] mm: stack based kmap_atomic
2010-09-19 17:01 ` Linus Torvalds
@ 2010-09-20 9:31 ` Peter Zijlstra
-1 siblings, 0 replies; 24+ messages in thread
From: Peter Zijlstra @ 2010-09-20 9:31 UTC (permalink / raw)
To: Linus Torvalds
Cc: Andrew Morton, Ingo Molnar, Thomas Gleixner, H. Peter Anvin,
Russell King, David Howells, Ralf Baechle, David Miller,
Chris Metcalf, Paul Mackerras, Benjamin Herrenschmidt,
Hugh Dickins, linux-kernel, linux-mm, linux-arch, Rik van Riel
On Sun, 2010-09-19 at 10:01 -0700, Linus Torvalds wrote:
> On Sat, Sep 18, 2010 at 8:53 AM, Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
> >
> > usr/src/linux-2.6/drivers/gpu/drm/nouveau/nouveau_bios.c | 6832 ---------------
> > 29 files changed, 361 insertions(+), 7195 deletions(-)
>
> What's that odd 'usr/src/linux-2.6' file that you have and removed?
>
> You're using some seriously broken SCM there.
I use quilt, no idea what happened, let me have a peek.
It seems to include a full copy of that file to remove it.. I must have
done something terribly daft to make that happen.
Fixed up version below:
---
Subject: mm: stack based kmap_atomic
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Thu Oct 08 22:10:26 CEST 2009
Keep the current interface but ignore the KM_type and use a stack
based approach.
The advantage is that we get rid of crappy code like:
#define __KM_PTE \
(in_nmi() ? KM_NMI_PTE : \
in_irq() ? KM_IRQ_PTE : \
KM_PTE0)
and in general can stop worrying about what context we're in and what
kmap slots might be appropriate for that.
The down-side is that FRV kmap_atomic gets more expensive.
For now we use a CPP trick suggested by Andrew:
#define kmap_atomic(page, args...) __kmap_atomic(page)
to avoid having to touch all kmap_atomic users in a single patch.
[ not compiled on:
- nm10300: the arch doesn't actually build with highmem to begin with ]
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
---
arch/arm/include/asm/highmem.h | 6 +-
arch/arm/mm/highmem.c | 23 +++++---
arch/frv/include/asm/highmem.h | 25 +--------
arch/frv/mb93090-mb00/pci-dma.c | 4 -
arch/frv/mm/cache-page.c | 8 +--
arch/frv/mm/highmem.c | 51 +++++++++++++++++++
arch/mips/include/asm/highmem.h | 18 ++----
arch/mips/mm/highmem.c | 50 ++++++++++---------
arch/mn10300/include/asm/highmem.h | 42 ++++++++++------
arch/powerpc/include/asm/highmem.h | 9 +--
arch/powerpc/mm/highmem.c | 35 ++++++++-----
arch/sparc/include/asm/highmem.h | 4 -
arch/sparc/mm/highmem.c | 48 ++++++++++--------
arch/tile/include/asm/highmem.h | 10 +--
arch/tile/mm/highmem.c | 85 ++++++++-------------------------
arch/x86/include/asm/highmem.h | 11 ++--
arch/x86/include/asm/iomap.h | 4 -
arch/x86/kernel/crash_dump_32.c | 2
arch/x86/mm/highmem_32.c | 74 +++++++++++++++-------------
arch/x86/mm/iomap_32.c | 43 ++++++++++------
drivers/gpu/drm/i915/i915_gem.c | 9 +--
drivers/gpu/drm/i915/i915_irq.c | 5 -
drivers/gpu/drm/i915/intel_overlay.c | 5 -
drivers/gpu/drm/nouveau/nouveau_bios.c | 8 +--
drivers/gpu/drm/ttm/ttm_bo_util.c | 8 +--
include/linux/highmem.h | 61 +++++++++++++++--------
include/linux/io-mapping.h | 14 ++---
mm/highmem.c | 62 +-----------------------
28 files changed, 361 insertions(+), 363 deletions(-)
Index: linux-2.6/arch/arm/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/highmem.c
+++ linux-2.6/arch/arm/mm/highmem.c
@@ -36,18 +36,17 @@ void kunmap(struct page *page)
}
EXPORT_SYMBOL(kunmap);
-void *kmap_atomic(struct page *page, enum km_type type)
+void *__kmap_atomic(struct page *page)
{
unsigned int idx;
unsigned long vaddr;
void *kmap;
+ int type;
pagefault_disable();
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
-
#ifdef CONFIG_DEBUG_HIGHMEM
/*
* There is no cache coherency issue when non VIVT, so force the
@@ -61,6 +60,8 @@ void *kmap_atomic(struct page *page, enu
if (kmap)
return kmap;
+ type = kmap_atomic_idx_push();
+
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -80,14 +81,17 @@ void *kmap_atomic(struct page *page, enu
return (void *)vaddr;
}
-EXPORT_SYMBOL(kmap_atomic);
+EXPORT_SYMBOL(__kmap_atomic);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- unsigned int idx = type + KM_TYPE_NR * smp_processor_id();
+ int idx, type;
if (kvaddr >= (void *)FIXADDR_START) {
+ type = kmap_atomic_idx_pop();
+ idx = type + KM_TYPE_NR * smp_processor_id();
+
if (cache_is_vivt())
__cpuc_flush_dcache_area((void *)vaddr, PAGE_SIZE);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -103,15 +107,16 @@ void kunmap_atomic_notypecheck(void *kva
}
pagefault_enable();
}
-EXPORT_SYMBOL(kunmap_atomic_notypecheck);
+EXPORT_SYMBOL(__kunmap_atomic);
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
+void *kmap_atomic_pfn(unsigned long pfn)
{
- unsigned int idx;
unsigned long vaddr;
+ int idx, type;
pagefault_disable();
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
Index: linux-2.6/arch/frv/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/frv/include/asm/highmem.h
+++ linux-2.6/arch/frv/include/asm/highmem.h
@@ -112,12 +112,11 @@ extern struct page *kmap_atomic_to_page(
(void *) damlr; \
})
-static inline void *kmap_atomic(struct page *page, enum km_type type)
+static inline void *kmap_atomic_primary(struct page *page, enum km_type type)
{
unsigned long paddr;
pagefault_disable();
- debug_kmap_atomic(type);
paddr = page_to_phys(page);
switch (type) {
@@ -125,14 +124,6 @@ static inline void *kmap_atomic(struct p
case 1: return __kmap_atomic_primary(1, paddr, 3);
case 2: return __kmap_atomic_primary(2, paddr, 4);
case 3: return __kmap_atomic_primary(3, paddr, 5);
- case 4: return __kmap_atomic_primary(4, paddr, 6);
- case 5: return __kmap_atomic_primary(5, paddr, 7);
- case 6: return __kmap_atomic_primary(6, paddr, 8);
- case 7: return __kmap_atomic_primary(7, paddr, 9);
- case 8: return __kmap_atomic_primary(8, paddr, 10);
-
- case 9 ... 9 + NR_TLB_LINES - 1:
- return __kmap_atomic_secondary(type - 9, paddr);
default:
BUG();
@@ -152,22 +143,13 @@ do { \
asm volatile("tlbpr %0,gr0,#4,#1" : : "r"(vaddr) : "memory"); \
} while(0)
-static inline void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+static inline void kunmap_atomic_primary(void *kvaddr, enum km_type type)
{
switch (type) {
case 0: __kunmap_atomic_primary(0, 2); break;
case 1: __kunmap_atomic_primary(1, 3); break;
case 2: __kunmap_atomic_primary(2, 4); break;
case 3: __kunmap_atomic_primary(3, 5); break;
- case 4: __kunmap_atomic_primary(4, 6); break;
- case 5: __kunmap_atomic_primary(5, 7); break;
- case 6: __kunmap_atomic_primary(6, 8); break;
- case 7: __kunmap_atomic_primary(7, 9); break;
- case 8: __kunmap_atomic_primary(8, 10); break;
-
- case 9 ... 9 + NR_TLB_LINES - 1:
- __kunmap_atomic_secondary(type - 9, kvaddr);
- break;
default:
BUG();
@@ -175,6 +157,9 @@ static inline void kunmap_atomic_notypec
pagefault_enable();
}
+void *__kmap_atomic(struct page *page);
+void __kunmap_atomic(void *kvaddr);
+
#endif /* !__ASSEMBLY__ */
#endif /* __KERNEL__ */
Index: linux-2.6/arch/mips/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/mips/mm/highmem.c
+++ linux-2.6/arch/mips/mm/highmem.c
@@ -9,7 +9,7 @@ static pte_t *kmap_pte;
unsigned long highstart_pfn, highend_pfn;
-void *__kmap(struct page *page)
+void *kmap(struct page *page)
{
void *addr;
@@ -21,16 +21,16 @@ void *__kmap(struct page *page)
return addr;
}
-EXPORT_SYMBOL(__kmap);
+EXPORT_SYMBOL(kmap);
-void __kunmap(struct page *page)
+void kunmap(struct page *page)
{
BUG_ON(in_interrupt());
if (!PageHighMem(page))
return;
kunmap_high(page);
}
-EXPORT_SYMBOL(__kunmap);
+EXPORT_SYMBOL(kunmap);
/*
* kmap_atomic/kunmap_atomic is significantly faster than kmap/kunmap because
@@ -41,17 +41,17 @@ EXPORT_SYMBOL(__kunmap);
* kmaps are appropriate for short, tight code paths only.
*/
-void *__kmap_atomic(struct page *page, enum km_type type)
+void *__kmap_atomic(struct page *page)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
pagefault_disable();
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -64,43 +64,47 @@ void *__kmap_atomic(struct page *page, e
}
EXPORT_SYMBOL(__kmap_atomic);
-void __kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
-#ifdef CONFIG_DEBUG_HIGHMEM
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
+ int type;
if (vaddr < FIXADDR_START) { // FIXME
pagefault_enable();
return;
}
- BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
+ type = kmap_atomic_idx_pop();
+#ifdef CONFIG_DEBUG_HIGHMEM
+ {
+ int idx = type + KM_TYPE_NR * smp_processor_id();
- /*
- * force other mappings to Oops if they'll try to access
- * this pte without first remap it
- */
- pte_clear(&init_mm, vaddr, kmap_pte-idx);
- local_flush_tlb_one(vaddr);
-#endif
+ BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
+ /*
+ * force other mappings to Oops if they'll try to access
+ * this pte without first remap it
+ */
+ pte_clear(&init_mm, vaddr, kmap_pte-idx);
+ local_flush_tlb_one(vaddr);
+ }
+#endif
pagefault_enable();
}
-EXPORT_SYMBOL(__kunmap_atomic_notypecheck);
+EXPORT_SYMBOL(__kunmap_atomic);
/*
* This is the same as kmap_atomic() but can map memory that doesn't
* have a struct page associated with it.
*/
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
+void *kmap_atomic_pfn(unsigned long pfn)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
pagefault_disable();
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
set_pte(kmap_pte-idx, pfn_pte(pfn, PAGE_KERNEL));
@@ -109,7 +113,7 @@ void *kmap_atomic_pfn(unsigned long pfn,
return (void*) vaddr;
}
-struct page *__kmap_atomic_to_page(void *ptr)
+struct page *kmap_atomic_to_page(void *ptr)
{
unsigned long idx, vaddr = (unsigned long)ptr;
pte_t *pte;
Index: linux-2.6/arch/mn10300/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/mn10300/include/asm/highmem.h
+++ linux-2.6/arch/mn10300/include/asm/highmem.h
@@ -70,15 +70,16 @@ static inline void kunmap(struct page *p
* be used in IRQ contexts, so in some (very limited) cases we need
* it.
*/
-static inline unsigned long kmap_atomic(struct page *page, enum km_type type)
+static inline unsigned long __kmap_atomic(struct page *page)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
+ pagefault_disable();
if (page < highmem_start_page)
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#if HIGHMEM_DEBUG
@@ -91,26 +92,35 @@ static inline unsigned long kmap_atomic(
return vaddr;
}
-static inline void kunmap_atomic_notypecheck(unsigned long vaddr, enum km_type type)
+static inline void __kunmap_atomic(unsigned long vaddr)
{
-#if HIGHMEM_DEBUG
- enum fixed_addresses idx = type + KM_TYPE_NR * smp_processor_id();
+ int type;
- if (vaddr < FIXADDR_START) /* FIXME */
+ if (vaddr < FIXADDR_START) { /* FIXME */
+ pagefault_enable();
return;
+ }
- if (vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx))
- BUG();
+ type = kmap_atomic_idx_pop();
- /*
- * force other mappings to Oops if they'll try to access
- * this pte without first remap it
- */
- pte_clear(kmap_pte - idx);
- __flush_tlb_one(vaddr);
+#if HIGHMEM_DEBUG
+ {
+ unsigned int idx;
+ idx = type + KM_TYPE_NR * smp_processor_id();
+
+ if (vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx))
+ BUG();
+
+ /*
+ * force other mappings to Oops if they'll try to access
+ * this pte without first remap it
+ */
+ pte_clear(kmap_pte - idx);
+ __flush_tlb_one(vaddr);
+ }
#endif
+ pagefault_enable();
}
-
#endif /* __KERNEL__ */
#endif /* _ASM_HIGHMEM_H */
Index: linux-2.6/arch/powerpc/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/powerpc/mm/highmem.c
+++ linux-2.6/arch/powerpc/mm/highmem.c
@@ -29,17 +29,17 @@
* be used in IRQ contexts, so in some (very limited) cases we need
* it.
*/
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot(struct page *page, pgprot_t prot)
{
- unsigned int idx;
unsigned long vaddr;
+ int idx, type;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
pagefault_disable();
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -52,26 +52,33 @@ void *kmap_atomic_prot(struct page *page
}
EXPORT_SYMBOL(kmap_atomic_prot);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
-#ifdef CONFIG_DEBUG_HIGHMEM
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
+ int type;
if (vaddr < __fix_to_virt(FIX_KMAP_END)) {
pagefault_enable();
return;
}
- BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
+ type = kmap_atomic_idx_pop();
- /*
- * force other mappings to Oops if they'll try to access
- * this pte without first remap it
- */
- pte_clear(&init_mm, vaddr, kmap_pte-idx);
- local_flush_tlb_page(NULL, vaddr);
+#ifdef CONFIG_DEBUG_HIGHMEM
+ {
+ unsigned int idx;
+
+ idx = type + KM_TYPE_NR * smp_processor_id();
+ BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
+
+ /*
+ * force other mappings to Oops if they'll try to access
+ * this pte without first remap it
+ */
+ pte_clear(&init_mm, vaddr, kmap_pte-idx);
+ local_flush_tlb_page(NULL, vaddr);
+ }
#endif
pagefault_enable();
}
-EXPORT_SYMBOL(kunmap_atomic_notypecheck);
+EXPORT_SYMBOL(__kunmap_atomic);
Index: linux-2.6/arch/sparc/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/sparc/mm/highmem.c
+++ linux-2.6/arch/sparc/mm/highmem.c
@@ -29,17 +29,17 @@
#include <asm/tlbflush.h>
#include <asm/fixmap.h>
-void *kmap_atomic(struct page *page, enum km_type type)
+void *__kmap_atomic(struct page *page)
{
- unsigned long idx;
unsigned long vaddr;
+ long idx, type;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
pagefault_disable();
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
@@ -63,44 +63,50 @@ void *kmap_atomic(struct page *page, enu
return (void*) vaddr;
}
-EXPORT_SYMBOL(kmap_atomic);
+EXPORT_SYMBOL(__kmap_atomic);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
-#ifdef CONFIG_DEBUG_HIGHMEM
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- unsigned long idx = type + KM_TYPE_NR*smp_processor_id();
+ int type;
if (vaddr < FIXADDR_START) { // FIXME
pagefault_enable();
return;
}
- BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN+idx));
+ type = kmap_atomic_idx_pop();
-/* XXX Fix - Anton */
+#ifdef CONFIG_DEBUG_HIGHMEM
+ {
+ unsigned long idx;
+
+ idx = type + KM_TYPE_NR * smp_processor_id();
+ BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN+idx));
+
+ /* XXX Fix - Anton */
#if 0
- __flush_cache_one(vaddr);
+ __flush_cache_one(vaddr);
#else
- flush_cache_all();
+ flush_cache_all();
#endif
- /*
- * force other mappings to Oops if they'll try to access
- * this pte without first remap it
- */
- pte_clear(&init_mm, vaddr, kmap_pte-idx);
-/* XXX Fix - Anton */
+ /*
+ * force other mappings to Oops if they'll try to access
+ * this pte without first remap it
+ */
+ pte_clear(&init_mm, vaddr, kmap_pte-idx);
+ /* XXX Fix - Anton */
#if 0
- __flush_tlb_one(vaddr);
+ __flush_tlb_one(vaddr);
#else
- flush_tlb_all();
+ flush_tlb_all();
#endif
+ }
#endif
-
pagefault_enable();
}
-EXPORT_SYMBOL(kunmap_atomic_notypecheck);
+EXPORT_SYMBOL(__kunmap_atomic);
/* We may be fed a pagetable here by ptep_to_xxx and others. */
struct page *kmap_atomic_to_page(void *ptr)
Index: linux-2.6/arch/x86/mm/highmem_32.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/highmem_32.c
+++ linux-2.6/arch/x86/mm/highmem_32.c
@@ -9,6 +9,7 @@ void *kmap(struct page *page)
return page_address(page);
return kmap_high(page);
}
+EXPORT_SYMBOL(kmap);
void kunmap(struct page *page)
{
@@ -18,6 +19,7 @@ void kunmap(struct page *page)
return;
kunmap_high(page);
}
+EXPORT_SYMBOL(kunmap);
/*
* kmap_atomic/kunmap_atomic is significantly faster than kmap/kunmap because
@@ -27,10 +29,10 @@ void kunmap(struct page *page)
* However when holding an atomic kmap it is not legal to sleep, so atomic
* kmaps are appropriate for short, tight code paths only.
*/
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot(struct page *page, pgprot_t prot)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
pagefault_disable();
@@ -38,8 +40,7 @@ void *kmap_atomic_prot(struct page *page
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
-
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
BUG_ON(!pte_none(*(kmap_pte-idx)));
@@ -47,44 +48,57 @@ void *kmap_atomic_prot(struct page *page
return (void *)vaddr;
}
+EXPORT_SYMBOL(kmap_atomic_prot);
+
+void *__kmap_atomic(struct page *page)
+{
+ return kmap_atomic_prot(page, kmap_prot);
+}
+EXPORT_SYMBOL(__kmap_atomic);
-void *kmap_atomic(struct page *page, enum km_type type)
+/*
+ * This is the same as kmap_atomic() but can map memory that doesn't
+ * have a struct page associated with it.
+ */
+void *kmap_atomic_pfn(unsigned long pfn)
{
- return kmap_atomic_prot(page, type, kmap_prot);
+ return kmap_atomic_prot_pfn(pfn, kmap_prot);
}
+EXPORT_SYMBOL_GPL(kmap_atomic_pfn);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
- /*
- * Force other mappings to Oops if they'll try to access this pte
- * without first remap it. Keeping stale mappings around is a bad idea
- * also, in case the page changes cacheability attributes or becomes
- * a protected page in a hypervisor.
- */
- if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx))
+ if (vaddr >= __fix_to_virt(FIX_KMAP_END) &&
+ vaddr <= __fix_to_virt(FIX_KMAP_BEGIN)) {
+ int idx, type;
+
+ type = kmap_atomic_idx_pop();
+ idx = type + KM_TYPE_NR * smp_processor_id();
+
+#ifdef CONFIG_DEBUG_HIGHMEM
+ WARN_ON_ONCE(idx !=
+ ((vaddr - __fix_to_virt(FIX_KMAP_BEGIN)) >> PAGE_SHIFT));
+#endif
+ /*
+ * Force other mappings to Oops if they'll try to access this
+ * pte without first remap it. Keeping stale mappings around
+ * is a bad idea also, in case the page changes cacheability
+ * attributes or becomes a protected page in a hypervisor.
+ */
kpte_clear_flush(kmap_pte-idx, vaddr);
- else {
+ }
#ifdef CONFIG_DEBUG_HIGHMEM
+ else {
BUG_ON(vaddr < PAGE_OFFSET);
BUG_ON(vaddr >= (unsigned long)high_memory);
-#endif
}
+#endif
pagefault_enable();
}
-
-/*
- * This is the same as kmap_atomic() but can map memory that doesn't
- * have a struct page associated with it.
- */
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
-{
- return kmap_atomic_prot_pfn(pfn, type, kmap_prot);
-}
-EXPORT_SYMBOL_GPL(kmap_atomic_pfn); /* temporarily in use by i915 GEM until vmap */
+EXPORT_SYMBOL(__kunmap_atomic);
struct page *kmap_atomic_to_page(void *ptr)
{
@@ -98,12 +112,6 @@ struct page *kmap_atomic_to_page(void *p
pte = kmap_pte - (idx - FIX_KMAP_BEGIN);
return pte_page(*pte);
}
-
-EXPORT_SYMBOL(kmap);
-EXPORT_SYMBOL(kunmap);
-EXPORT_SYMBOL(kmap_atomic);
-EXPORT_SYMBOL(kunmap_atomic_notypecheck);
-EXPORT_SYMBOL(kmap_atomic_prot);
EXPORT_SYMBOL(kmap_atomic_to_page);
void __init set_highmem_pages_init(void)
Index: linux-2.6/include/linux/highmem.h
===================================================================
--- linux-2.6.orig/include/linux/highmem.h
+++ linux-2.6/include/linux/highmem.h
@@ -28,18 +28,6 @@ static inline void invalidate_kernel_vma
#include <asm/kmap_types.h>
-#ifdef CONFIG_DEBUG_HIGHMEM
-
-void debug_kmap_atomic(enum km_type type);
-
-#else
-
-static inline void debug_kmap_atomic(enum km_type type)
-{
-}
-
-#endif
-
#ifdef CONFIG_HIGHMEM
#include <asm/highmem.h>
@@ -49,6 +37,27 @@ extern unsigned long totalhigh_pages;
void kmap_flush_unused(void);
+DECLARE_PER_CPU(int, __kmap_atomic_idx);
+
+static inline int kmap_atomic_idx_push(void)
+{
+ int idx = __get_cpu_var(__kmap_atomic_idx)++;
+#ifdef CONFIG_DEBUG_HIGHMEM
+ WARN_ON_ONCE(in_irq() && !irqs_disabled());
+ BUG_ON(idx > KM_TYPE_NR);
+#endif
+ return idx;
+}
+
+static inline int kmap_atomic_idx_pop(void)
+{
+ int idx = --__get_cpu_var(__kmap_atomic_idx);
+#ifdef CONFIG_DEBUG_HIGHMEM
+ BUG_ON(idx < 0);
+#endif
+ return idx;
+}
+
#else /* CONFIG_HIGHMEM */
static inline unsigned int nr_free_highpages(void) { return 0; }
@@ -66,19 +75,19 @@ static inline void kunmap(struct page *p
{
}
-static inline void *kmap_atomic(struct page *page, enum km_type idx)
+static inline void *__kmap_atomic(struct page *page)
{
pagefault_disable();
return page_address(page);
}
-#define kmap_atomic_prot(page, idx, prot) kmap_atomic(page, idx)
+#define kmap_atomic_prot(page, prot) __kmap_atomic(page)
-static inline void kunmap_atomic_notypecheck(void *addr, enum km_type idx)
+static inline void __kunmap_atomic(void *addr)
{
pagefault_enable();
}
-#define kmap_atomic_pfn(pfn, idx) kmap_atomic(pfn_to_page(pfn), (idx))
+#define kmap_atomic_pfn(pfn) kmap_atomic(pfn_to_page(pfn))
#define kmap_atomic_to_page(ptr) virt_to_page(ptr)
#define kmap_flush_unused() do {} while(0)
@@ -86,12 +95,20 @@ static inline void kunmap_atomic_notypec
#endif /* CONFIG_HIGHMEM */
-/* Prevent people trying to call kunmap_atomic() as if it were kunmap() */
-/* kunmap_atomic() should get the return value of kmap_atomic, not the page. */
-#define kunmap_atomic(addr, idx) do { \
- BUILD_BUG_ON(__same_type((addr), struct page *)); \
- kunmap_atomic_notypecheck((addr), (idx)); \
- } while (0)
+/*
+ * Make both: kmap_atomic(page, idx) and kmap_atomic(page) work.
+ */
+#define kmap_atomic(page, args...) __kmap_atomic(page)
+
+/*
+ * Prevent people trying to call kunmap_atomic() as if it were kunmap()
+ * kunmap_atomic() should get the return value of kmap_atomic, not the page.
+ */
+#define kunmap_atomic(addr, args...) \
+do { \
+ BUILD_BUG_ON(__same_type((addr), struct page *)); \
+ __kunmap_atomic(addr); \
+} while (0)
/* when CONFIG_HIGHMEM is not set these will be plain clear/copy_page */
#ifndef clear_user_highpage
Index: linux-2.6/mm/highmem.c
===================================================================
--- linux-2.6.orig/mm/highmem.c
+++ linux-2.6/mm/highmem.c
@@ -42,6 +42,10 @@
unsigned long totalhigh_pages __read_mostly;
EXPORT_SYMBOL(totalhigh_pages);
+
+DEFINE_PER_CPU(int, __kmap_atomic_idx);
+EXPORT_PER_CPU_SYMBOL(__kmap_atomic_idx);
+
unsigned int nr_free_highpages (void)
{
pg_data_t *pgdat;
@@ -422,61 +426,3 @@ void __init page_address_init(void)
}
#endif /* defined(CONFIG_HIGHMEM) && !defined(WANT_PAGE_VIRTUAL) */
-
-#ifdef CONFIG_DEBUG_HIGHMEM
-
-void debug_kmap_atomic(enum km_type type)
-{
- static int warn_count = 10;
-
- if (unlikely(warn_count < 0))
- return;
-
- if (unlikely(in_interrupt())) {
- if (in_nmi()) {
- if (type != KM_NMI && type != KM_NMI_PTE) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (in_irq()) {
- if (type != KM_IRQ0 && type != KM_IRQ1 &&
- type != KM_BIO_SRC_IRQ && type != KM_BIO_DST_IRQ &&
- type != KM_BOUNCE_READ && type != KM_IRQ_PTE) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (!irqs_disabled()) { /* softirq */
- if (type != KM_IRQ0 && type != KM_IRQ1 &&
- type != KM_SOFTIRQ0 && type != KM_SOFTIRQ1 &&
- type != KM_SKB_SUNRPC_DATA &&
- type != KM_SKB_DATA_SOFTIRQ &&
- type != KM_BOUNCE_READ) {
- WARN_ON(1);
- warn_count--;
- }
- }
- }
-
- if (type == KM_IRQ0 || type == KM_IRQ1 || type == KM_BOUNCE_READ ||
- type == KM_BIO_SRC_IRQ || type == KM_BIO_DST_IRQ ||
- type == KM_IRQ_PTE || type == KM_NMI ||
- type == KM_NMI_PTE ) {
- if (!irqs_disabled()) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (type == KM_SOFTIRQ0 || type == KM_SOFTIRQ1) {
- if (irq_count() == 0 && !irqs_disabled()) {
- WARN_ON(1);
- warn_count--;
- }
- }
-#ifdef CONFIG_KGDB_KDB
- if (unlikely(type == KM_KDB && atomic_read(&kgdb_active) == -1)) {
- WARN_ON(1);
- warn_count--;
- }
-#endif /* CONFIG_KGDB_KDB */
-}
-
-#endif
Index: linux-2.6/arch/x86/mm/iomap_32.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/iomap_32.c
+++ linux-2.6/arch/x86/mm/iomap_32.c
@@ -48,21 +48,20 @@ int iomap_create_wc(resource_size_t base
}
EXPORT_SYMBOL_GPL(iomap_create_wc);
-void
-iomap_free(resource_size_t base, unsigned long size)
+void iomap_free(resource_size_t base, unsigned long size)
{
io_free_memtype(base, base + size);
}
EXPORT_SYMBOL_GPL(iomap_free);
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
pagefault_disable();
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
set_pte(kmap_pte - idx, pfn_pte(pfn, prot));
@@ -72,10 +71,10 @@ void *kmap_atomic_prot_pfn(unsigned long
}
/*
- * Map 'pfn' using fixed map 'type' and protections 'prot'
+ * Map 'pfn' using protections 'prot'
*/
void __iomem *
-iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
+iomap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
{
/*
* For non-PAT systems, promote PAGE_KERNEL_WC to PAGE_KERNEL_UC_MINUS.
@@ -86,24 +85,34 @@ iomap_atomic_prot_pfn(unsigned long pfn,
if (!pat_enabled && pgprot_val(prot) == pgprot_val(PAGE_KERNEL_WC))
prot = PAGE_KERNEL_UC_MINUS;
- return (void __force __iomem *) kmap_atomic_prot_pfn(pfn, type, prot);
+ return (void __force __iomem *) kmap_atomic_prot_pfn(pfn, prot);
}
EXPORT_SYMBOL_GPL(iomap_atomic_prot_pfn);
void
-iounmap_atomic(void __iomem *kvaddr, enum km_type type)
+iounmap_atomic(void __iomem *kvaddr)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
- /*
- * Force other mappings to Oops if they'll try to access this pte
- * without first remap it. Keeping stale mappings around is a bad idea
- * also, in case the page changes cacheability attributes or becomes
- * a protected page in a hypervisor.
- */
- if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx))
+ if (vaddr >= __fix_to_virt(FIX_KMAP_END) &&
+ vaddr <= __fix_to_virt(FIX_KMAP_BEGIN)) {
+ int idx, type;
+
+ type = kmap_atomic_idx_pop();
+ idx = type + KM_TYPE_NR * smp_processor_id();
+
+#ifdef CONFIG_DEBUG_HIGHMEM
+ WARN_ON_ONCE(idx !=
+ ((vaddr - __fix_to_virt(FIX_KMAP_BEGIN)) >> PAGE_SHIFT));
+#endif
+ /*
+ * Force other mappings to Oops if they'll try to access this
+ * pte without first remap it. Keeping stale mappings around
+ * is a bad idea also, in case the page changes cacheability
+ * attributes or becomes a protected page in a hypervisor.
+ */
kpte_clear_flush(kmap_pte-idx, vaddr);
+ }
pagefault_enable();
}
Index: linux-2.6/arch/frv/mb93090-mb00/pci-dma.c
===================================================================
--- linux-2.6.orig/arch/frv/mb93090-mb00/pci-dma.c
+++ linux-2.6/arch/frv/mb93090-mb00/pci-dma.c
@@ -61,14 +61,14 @@ int dma_map_sg(struct device *dev, struc
dampr2 = __get_DAMPR(2);
for (i = 0; i < nents; i++) {
- vaddr = kmap_atomic(sg_page(&sg[i]), __KM_CACHE);
+ vaddr = kmap_atomic_primary(sg_page(&sg[i]), __KM_CACHE);
frv_dcache_writeback((unsigned long) vaddr,
(unsigned long) vaddr + PAGE_SIZE);
}
- kunmap_atomic(vaddr, __KM_CACHE);
+ kunmap_atomic_primary(vaddr, __KM_CACHE);
if (dampr2) {
__set_DAMPR(2, dampr2);
__set_IAMPR(2, dampr2);
Index: linux-2.6/arch/frv/mm/cache-page.c
===================================================================
--- linux-2.6.orig/arch/frv/mm/cache-page.c
+++ linux-2.6/arch/frv/mm/cache-page.c
@@ -26,11 +26,11 @@ void flush_dcache_page(struct page *page
dampr2 = __get_DAMPR(2);
- vaddr = kmap_atomic(page, __KM_CACHE);
+ vaddr = kmap_atomic_primary(page, __KM_CACHE);
frv_dcache_writeback((unsigned long) vaddr, (unsigned long) vaddr + PAGE_SIZE);
- kunmap_atomic(vaddr, __KM_CACHE);
+ kunmap_atomic_primary(vaddr, __KM_CACHE);
if (dampr2) {
__set_DAMPR(2, dampr2);
@@ -54,12 +54,12 @@ void flush_icache_user_range(struct vm_a
dampr2 = __get_DAMPR(2);
- vaddr = kmap_atomic(page, __KM_CACHE);
+ vaddr = kmap_atomic_primary(page, __KM_CACHE);
start = (start & ~PAGE_MASK) | (unsigned long) vaddr;
frv_cache_wback_inv(start, start + len);
- kunmap_atomic(vaddr, __KM_CACHE);
+ kunmap_atomic_primary(vaddr, __KM_CACHE);
if (dampr2) {
__set_DAMPR(2, dampr2);
Index: linux-2.6/arch/frv/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/frv/mm/highmem.c
+++ linux-2.6/arch/frv/mm/highmem.c
@@ -36,3 +36,54 @@ struct page *kmap_atomic_to_page(void *p
{
return virt_to_page(ptr);
}
+
+void *__kmap_atomic(struct page *page)
+{
+ unsigned long paddr;
+ int type;
+
+ pagefault_disable();
+ type = kmap_atomic_idx_push();
+ paddr = page_to_phys(page);
+
+ switch (type) {
+ /*
+ * The first 4 primary maps are reserved for architecture code
+ */
+ case 0: return __kmap_atomic_primary(4, paddr, 6);
+ case 1: return __kmap_atomic_primary(5, paddr, 7);
+ case 2: return __kmap_atomic_primary(6, paddr, 8);
+ case 3: return __kmap_atomic_primary(7, paddr, 9);
+ case 4: return __kmap_atomic_primary(8, paddr, 10);
+
+ case 5 ... 5 + NR_TLB_LINES - 1:
+ return __kmap_atomic_secondary(type - 5, paddr);
+
+ default:
+ BUG();
+ return NULL;
+ }
+}
+EXPORT_SYMBOL(__kmap_atomic);
+
+void __kunmap_atomic(void *kvaddr)
+{
+ int type = kmap_atomic_idx_pop();
+ switch (type) {
+ case 0: __kunmap_atomic_primary(4, 6); break;
+ case 1: __kunmap_atomic_primary(5, 7); break;
+ case 2: __kunmap_atomic_primary(6, 8); break;
+ case 3: __kunmap_atomic_primary(7, 9); break;
+ case 4: __kunmap_atomic_primary(8, 10); break;
+
+ case 5 ... 5 + NR_TLB_LINES - 1:
+ __kunmap_atomic_secondary(type - 5, kvaddr);
+ break;
+
+ default:
+ BUG();
+ }
+ pagefault_enable();
+}
+EXPORT_SYMBOL(__kunmap_atomic);
+
Index: linux-2.6/arch/arm/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/arm/include/asm/highmem.h
+++ linux-2.6/arch/arm/include/asm/highmem.h
@@ -35,9 +35,9 @@ extern void kunmap_high_l1_vipt(struct p
#ifdef CONFIG_HIGHMEM
extern void *kmap(struct page *page);
extern void kunmap(struct page *page);
-extern void *kmap_atomic(struct page *page, enum km_type type);
-extern void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
-extern void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
+extern void *__kmap_atomic(struct page *page);
+extern void __kunmap_atomic(void *kvaddr);
+extern void *kmap_atomic_pfn(unsigned long pfn);
extern struct page *kmap_atomic_to_page(const void *ptr);
#endif
Index: linux-2.6/arch/mips/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/mips/include/asm/highmem.h
+++ linux-2.6/arch/mips/include/asm/highmem.h
@@ -45,18 +45,12 @@ extern pte_t *pkmap_page_table;
extern void * kmap_high(struct page *page);
extern void kunmap_high(struct page *page);
-extern void *__kmap(struct page *page);
-extern void __kunmap(struct page *page);
-extern void *__kmap_atomic(struct page *page, enum km_type type);
-extern void __kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
-extern void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
-extern struct page *__kmap_atomic_to_page(void *ptr);
-
-#define kmap __kmap
-#define kunmap __kunmap
-#define kmap_atomic __kmap_atomic
-#define kunmap_atomic_notypecheck __kunmap_atomic_notypecheck
-#define kmap_atomic_to_page __kmap_atomic_to_page
+extern void *kmap(struct page *page);
+extern void kunmap(struct page *page);
+extern void *__kmap_atomic(struct page *page);
+extern void __kunmap_atomic(void *kvaddr);
+extern void *kmap_atomic_pfn(unsigned long pfn);
+extern struct page *kmap_atomic_to_page(void *ptr);
#define flush_cache_kmaps() flush_cache_all()
Index: linux-2.6/arch/powerpc/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/powerpc/include/asm/highmem.h
+++ linux-2.6/arch/powerpc/include/asm/highmem.h
@@ -60,9 +60,8 @@ extern pte_t *pkmap_page_table;
extern void *kmap_high(struct page *page);
extern void kunmap_high(struct page *page);
-extern void *kmap_atomic_prot(struct page *page, enum km_type type,
- pgprot_t prot);
-extern void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
+extern void *kmap_atomic_prot(struct page *page, pgprot_t prot);
+extern void __kunmap_atomic(void *kvaddr);
static inline void *kmap(struct page *page)
{
@@ -80,9 +79,9 @@ static inline void kunmap(struct page *p
kunmap_high(page);
}
-static inline void *kmap_atomic(struct page *page, enum km_type type)
+static inline void *__kmap_atomic(struct page *page)
{
- return kmap_atomic_prot(page, type, kmap_prot);
+ return kmap_atomic_prot(page, kmap_prot);
}
static inline struct page *kmap_atomic_to_page(void *ptr)
Index: linux-2.6/arch/sparc/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/sparc/include/asm/highmem.h
+++ linux-2.6/arch/sparc/include/asm/highmem.h
@@ -70,8 +70,8 @@ static inline void kunmap(struct page *p
kunmap_high(page);
}
-extern void *kmap_atomic(struct page *page, enum km_type type);
-extern void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
+extern void *__kmap_atomic(struct page *page);
+extern void __kunmap_atomic(void *kvaddr);
extern struct page *kmap_atomic_to_page(void *vaddr);
#define flush_cache_kmaps() flush_cache_all()
Index: linux-2.6/arch/tile/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/tile/include/asm/highmem.h
+++ linux-2.6/arch/tile/include/asm/highmem.h
@@ -60,12 +60,12 @@ void *kmap_fix_kpte(struct page *page, i
/* This macro is used only in map_new_virtual() to map "page". */
#define kmap_prot page_to_kpgprot(page)
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
+void *__kmap_atomic(struct page *page);
+void __kunmap_atomic(void *kvaddr);
+void *kmap_atomic_pfn(unsigned long pfn);
+void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
struct page *kmap_atomic_to_page(void *ptr);
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot);
-void *kmap_atomic(struct page *page, enum km_type type);
+void *kmap_atomic_prot(struct page *page, pgprot_t prot);
void kmap_atomic_fix_kpte(struct page *page, int finished);
#define flush_cache_kmaps() do { } while (0)
Index: linux-2.6/arch/tile/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/tile/mm/highmem.c
+++ linux-2.6/arch/tile/mm/highmem.c
@@ -56,50 +56,6 @@ void kunmap(struct page *page)
}
EXPORT_SYMBOL(kunmap);
-static void debug_kmap_atomic_prot(enum km_type type)
-{
-#ifdef CONFIG_DEBUG_HIGHMEM
- static unsigned warn_count = 10;
-
- if (unlikely(warn_count == 0))
- return;
-
- if (unlikely(in_interrupt())) {
- if (in_irq()) {
- if (type != KM_IRQ0 && type != KM_IRQ1 &&
- type != KM_BIO_SRC_IRQ &&
- /* type != KM_BIO_DST_IRQ && */
- type != KM_BOUNCE_READ) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (!irqs_disabled()) { /* softirq */
- if (type != KM_IRQ0 && type != KM_IRQ1 &&
- type != KM_SOFTIRQ0 && type != KM_SOFTIRQ1 &&
- type != KM_SKB_SUNRPC_DATA &&
- type != KM_SKB_DATA_SOFTIRQ &&
- type != KM_BOUNCE_READ) {
- WARN_ON(1);
- warn_count--;
- }
- }
- }
-
- if (type == KM_IRQ0 || type == KM_IRQ1 || type == KM_BOUNCE_READ ||
- type == KM_BIO_SRC_IRQ /* || type == KM_BIO_DST_IRQ */) {
- if (!irqs_disabled()) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (type == KM_SOFTIRQ0 || type == KM_SOFTIRQ1) {
- if (irq_count() == 0 && !irqs_disabled()) {
- WARN_ON(1);
- warn_count--;
- }
- }
-#endif
-}
-
/*
* Describe a single atomic mapping of a page on a given cpu at a
* given address, and allow it to be linked into a list.
@@ -240,10 +196,10 @@ void kmap_atomic_fix_kpte(struct page *p
* When holding an atomic kmap is is not legal to sleep, so atomic
* kmaps are appropriate for short, tight code paths only.
*/
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot(struct page *page, pgprot_t prot)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
pte_t *pte;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
@@ -255,8 +211,7 @@ void *kmap_atomic_prot(struct page *page
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic_prot(type);
-
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
pte = kmap_get_pte(vaddr);
@@ -269,25 +224,31 @@ void *kmap_atomic_prot(struct page *page
}
EXPORT_SYMBOL(kmap_atomic_prot);
-void *kmap_atomic(struct page *page, enum km_type type)
+void *__kmap_atomic(struct page *page)
{
/* PAGE_NONE is a magic value that tells us to check immutability. */
return kmap_atomic_prot(page, type, PAGE_NONE);
}
-EXPORT_SYMBOL(kmap_atomic);
+EXPORT_SYMBOL(__kmap_atomic);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
- /*
- * Force other mappings to Oops if they try to access this pte without
- * first remapping it. Keeping stale mappings around is a bad idea.
- */
- if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx)) {
+ if (vaddr >= __fix_to_virt(FIX_KMAP_END) &&
+ vaddr <= __fix_to_virt(FIX_KMAP_BEGIN)) {
pte_t *pte = kmap_get_pte(vaddr);
pte_t pteval = *pte;
+ int idx, type;
+
+ type = kmap_atomic_idx_pop();
+ idx = type + KM_TYPE_NR*smp_processor_id();
+
+ /*
+ * Force other mappings to Oops if they try to access this pte
+ * without first remapping it. Keeping stale mappings around
+ * is a bad idea.
+ */
BUG_ON(!pte_present(pteval) && !pte_migrating(pteval));
kmap_atomic_unregister(pte_page(pteval), vaddr);
kpte_clear_flush(pte, vaddr);
@@ -300,19 +261,19 @@ void kunmap_atomic_notypecheck(void *kva
arch_flush_lazy_mmu_mode();
pagefault_enable();
}
-EXPORT_SYMBOL(kunmap_atomic_notypecheck);
+EXPORT_SYMBOL(__kunmap_atomic);
/*
* This API is supposed to allow us to map memory without a "struct page".
* Currently we don't support this, though this may change in the future.
*/
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
+void *kmap_atomic_pfn(unsigned long pfn)
{
- return kmap_atomic(pfn_to_page(pfn), type);
+ return kmap_atomic(pfn_to_page(pfn));
}
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
{
- return kmap_atomic_prot(pfn_to_page(pfn), type, prot);
+ return kmap_atomic_prot(pfn_to_page(pfn), prot);
}
struct page *kmap_atomic_to_page(void *ptr)
Index: linux-2.6/arch/x86/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/highmem.h
+++ linux-2.6/arch/x86/include/asm/highmem.h
@@ -59,11 +59,12 @@ extern void kunmap_high(struct page *pag
void *kmap(struct page *page);
void kunmap(struct page *page);
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot);
-void *kmap_atomic(struct page *page, enum km_type type);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
+
+void *kmap_atomic_prot(struct page *page, pgprot_t prot);
+void *__kmap_atomic(struct page *page);
+void __kunmap_atomic(void *kvaddr);
+void *kmap_atomic_pfn(unsigned long pfn);
+void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
struct page *kmap_atomic_to_page(void *ptr);
#define flush_cache_kmaps() do { } while (0)
Index: linux-2.6/arch/x86/kernel/crash_dump_32.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/crash_dump_32.c
+++ linux-2.6/arch/x86/kernel/crash_dump_32.c
@@ -61,7 +61,7 @@ ssize_t copy_oldmem_page(unsigned long p
if (!is_crashed_pfn_valid(pfn))
return -EFAULT;
- vaddr = kmap_atomic_pfn(pfn, KM_PTE0);
+ vaddr = kmap_atomic_pfn(pfn);
if (!userbuf) {
memcpy(buf, (vaddr + offset), csize);
Index: linux-2.6/arch/x86/include/asm/iomap.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/iomap.h
+++ linux-2.6/arch/x86/include/asm/iomap.h
@@ -27,10 +27,10 @@
#include <asm/tlbflush.h>
void __iomem *
-iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
+iomap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
void
-iounmap_atomic(void __iomem *kvaddr, enum km_type type);
+iounmap_atomic(void __iomem *kvaddr);
int
iomap_create_wc(resource_size_t base, unsigned long size, pgprot_t *prot);
Index: linux-2.6/drivers/gpu/drm/i915/i915_gem.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/i915/i915_gem.c
+++ linux-2.6/drivers/gpu/drm/i915/i915_gem.c
@@ -508,10 +508,10 @@ fast_user_write(struct io_mapping *mappi
char *vaddr_atomic;
unsigned long unwritten;
- vaddr_atomic = io_mapping_map_atomic_wc(mapping, page_base, KM_USER0);
+ vaddr_atomic = io_mapping_map_atomic_wc(mapping, page_base);
unwritten = __copy_from_user_inatomic_nocache(vaddr_atomic + page_offset,
user_data, length);
- io_mapping_unmap_atomic(vaddr_atomic, KM_USER0);
+ io_mapping_unmap_atomic(vaddr_atomic);
if (unwritten)
return -EFAULT;
return 0;
@@ -3331,8 +3331,7 @@ i915_gem_object_pin_and_relocate(struct
reloc_offset = obj_priv->gtt_offset + reloc->offset;
reloc_page = io_mapping_map_atomic_wc(dev_priv->mm.gtt_mapping,
(reloc_offset &
- ~(PAGE_SIZE - 1)),
- KM_USER0);
+ ~(PAGE_SIZE - 1)));
reloc_entry = (uint32_t __iomem *)(reloc_page +
(reloc_offset & (PAGE_SIZE - 1)));
reloc_val = target_obj_priv->gtt_offset + reloc->delta;
@@ -3343,7 +3342,7 @@ i915_gem_object_pin_and_relocate(struct
readl(reloc_entry), reloc_val);
#endif
writel(reloc_val, reloc_entry);
- io_mapping_unmap_atomic(reloc_page, KM_USER0);
+ io_mapping_unmap_atomic(reloc_page);
/* The updated presumed offset for this entry will be
* copied back out to the user.
Index: linux-2.6/drivers/gpu/drm/i915/i915_irq.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/i915/i915_irq.c
+++ linux-2.6/drivers/gpu/drm/i915/i915_irq.c
@@ -456,10 +456,9 @@ i915_error_object_create(struct drm_devi
local_irq_save(flags);
s = io_mapping_map_atomic_wc(dev_priv->mm.gtt_mapping,
- reloc_offset,
- KM_IRQ0);
+ reloc_offset);
memcpy_fromio(d, s, PAGE_SIZE);
- io_mapping_unmap_atomic(s, KM_IRQ0);
+ io_mapping_unmap_atomic(s);
local_irq_restore(flags);
dst->pages[page] = d;
Index: linux-2.6/drivers/gpu/drm/i915/intel_overlay.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/i915/intel_overlay.c
+++ linux-2.6/drivers/gpu/drm/i915/intel_overlay.c
@@ -187,8 +187,7 @@ static struct overlay_registers *intel_o
if (OVERLAY_NONPHYSICAL(overlay->dev)) {
regs = io_mapping_map_atomic_wc(dev_priv->mm.gtt_mapping,
- overlay->reg_bo->gtt_offset,
- KM_USER0);
+ overlay->reg_bo->gtt_offset);
if (!regs) {
DRM_ERROR("failed to map overlay regs in GTT\n");
@@ -203,7 +202,7 @@ static struct overlay_registers *intel_o
static void intel_overlay_unmap_regs_atomic(struct intel_overlay *overlay)
{
if (OVERLAY_NONPHYSICAL(overlay->dev))
- io_mapping_unmap_atomic(overlay->virt_addr, KM_USER0);
+ io_mapping_unmap_atomic(overlay->virt_addr);
overlay->virt_addr = NULL;
Index: linux-2.6/drivers/gpu/drm/ttm/ttm_bo_util.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ linux-2.6/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -170,7 +170,7 @@ static int ttm_copy_io_ttm_page(struct t
src = (void *)((unsigned long)src + (page << PAGE_SHIFT));
#ifdef CONFIG_X86
- dst = kmap_atomic_prot(d, KM_USER0, prot);
+ dst = kmap_atomic_prot(d, prot);
#else
if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
dst = vmap(&d, 1, 0, prot);
@@ -183,7 +183,7 @@ static int ttm_copy_io_ttm_page(struct t
memcpy_fromio(dst, src, PAGE_SIZE);
#ifdef CONFIG_X86
- kunmap_atomic(dst, KM_USER0);
+ kunmap_atomic(dst);
#else
if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
vunmap(dst);
@@ -206,7 +206,7 @@ static int ttm_copy_ttm_io_page(struct t
dst = (void *)((unsigned long)dst + (page << PAGE_SHIFT));
#ifdef CONFIG_X86
- src = kmap_atomic_prot(s, KM_USER0, prot);
+ src = kmap_atomic_prot(s, prot);
#else
if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
src = vmap(&s, 1, 0, prot);
@@ -219,7 +219,7 @@ static int ttm_copy_ttm_io_page(struct t
memcpy_toio(dst, src, PAGE_SIZE);
#ifdef CONFIG_X86
- kunmap_atomic(src, KM_USER0);
+ kunmap_atomic(src);
#else
if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
vunmap(src);
Index: linux-2.6/include/linux/io-mapping.h
===================================================================
--- linux-2.6.orig/include/linux/io-mapping.h
+++ linux-2.6/include/linux/io-mapping.h
@@ -81,8 +81,7 @@ io_mapping_free(struct io_mapping *mappi
/* Atomic map/unmap */
static inline void __iomem *
io_mapping_map_atomic_wc(struct io_mapping *mapping,
- unsigned long offset,
- int slot)
+ unsigned long offset)
{
resource_size_t phys_addr;
unsigned long pfn;
@@ -90,13 +89,13 @@ io_mapping_map_atomic_wc(struct io_mappi
BUG_ON(offset >= mapping->size);
phys_addr = mapping->base + offset;
pfn = (unsigned long) (phys_addr >> PAGE_SHIFT);
- return iomap_atomic_prot_pfn(pfn, slot, mapping->prot);
+ return iomap_atomic_prot_pfn(pfn, mapping->prot);
}
static inline void
-io_mapping_unmap_atomic(void __iomem *vaddr, int slot)
+io_mapping_unmap_atomic(void __iomem *vaddr)
{
- iounmap_atomic(vaddr, slot);
+ iounmap_atomic(vaddr);
}
static inline void __iomem *
@@ -137,14 +136,13 @@ io_mapping_free(struct io_mapping *mappi
/* Atomic map/unmap */
static inline void __iomem *
io_mapping_map_atomic_wc(struct io_mapping *mapping,
- unsigned long offset,
- int slot)
+ unsigned long offset)
{
return ((char __force __iomem *) mapping) + offset;
}
static inline void
-io_mapping_unmap_atomic(void __iomem *vaddr, int slot)
+io_mapping_unmap_atomic(void __iomem *vaddr)
{
}
Index: linux-2.6/drivers/gpu/drm/nouveau/nouveau_bios.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ linux-2.6/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -2167,11 +2167,11 @@ peek_fb(struct drm_device *dev, struct i
if (off < pci_resource_len(dev->pdev, 1)) {
uint8_t __iomem *p =
- io_mapping_map_atomic_wc(fb, off & PAGE_MASK, KM_USER0);
+ io_mapping_map_atomic_wc(fb, off & PAGE_MASK);
val = ioread32(p + (off & ~PAGE_MASK));
- io_mapping_unmap_atomic(p, KM_USER0);
+ io_mapping_unmap_atomic(p);
}
return val;
@@ -2183,12 +2183,12 @@ poke_fb(struct drm_device *dev, struct i
{
if (off < pci_resource_len(dev->pdev, 1)) {
uint8_t __iomem *p =
- io_mapping_map_atomic_wc(fb, off & PAGE_MASK, KM_USER0);
+ io_mapping_map_atomic_wc(fb, off & PAGE_MASK);
iowrite32(val, p + (off & ~PAGE_MASK));
wmb();
- io_mapping_unmap_atomic(p, KM_USER0);
+ io_mapping_unmap_atomic(p);
}
}
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH 2/5] mm: stack based kmap_atomic
@ 2010-09-20 9:31 ` Peter Zijlstra
0 siblings, 0 replies; 24+ messages in thread
From: Peter Zijlstra @ 2010-09-20 9:31 UTC (permalink / raw)
To: Linus Torvalds
Cc: Andrew Morton, Ingo Molnar, Thomas Gleixner, H. Peter Anvin,
Russell King, David Howells, Ralf Baechle, David Miller,
Chris Metcalf, Paul Mackerras, Benjamin Herrenschmidt,
Hugh Dickins, linux-kernel, linux-mm, linux-arch, Rik van Riel
On Sun, 2010-09-19 at 10:01 -0700, Linus Torvalds wrote:
> On Sat, Sep 18, 2010 at 8:53 AM, Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
> >
> > usr/src/linux-2.6/drivers/gpu/drm/nouveau/nouveau_bios.c | 6832 ---------------
> > 29 files changed, 361 insertions(+), 7195 deletions(-)
>
> What's that odd 'usr/src/linux-2.6' file that you have and removed?
>
> You're using some seriously broken SCM there.
I use quilt, no idea what happened, let me have a peek.
It seems to include a full copy of that file to remove it.. I must have
done something terribly daft to make that happen.
Fixed up version below:
---
Subject: mm: stack based kmap_atomic
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Thu Oct 08 22:10:26 CEST 2009
Keep the current interface but ignore the KM_type and use a stack
based approach.
The advantage is that we get rid of crappy code like:
#define __KM_PTE \
(in_nmi() ? KM_NMI_PTE : \
in_irq() ? KM_IRQ_PTE : \
KM_PTE0)
and in general can stop worrying about what context we're in and what
kmap slots might be appropriate for that.
The down-side is that FRV kmap_atomic gets more expensive.
For now we use a CPP trick suggested by Andrew:
#define kmap_atomic(page, args...) __kmap_atomic(page)
to avoid having to touch all kmap_atomic users in a single patch.
[ not compiled on:
- nm10300: the arch doesn't actually build with highmem to begin with ]
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
---
arch/arm/include/asm/highmem.h | 6 +-
arch/arm/mm/highmem.c | 23 +++++---
arch/frv/include/asm/highmem.h | 25 +--------
arch/frv/mb93090-mb00/pci-dma.c | 4 -
arch/frv/mm/cache-page.c | 8 +--
arch/frv/mm/highmem.c | 51 +++++++++++++++++++
arch/mips/include/asm/highmem.h | 18 ++----
arch/mips/mm/highmem.c | 50 ++++++++++---------
arch/mn10300/include/asm/highmem.h | 42 ++++++++++------
arch/powerpc/include/asm/highmem.h | 9 +--
arch/powerpc/mm/highmem.c | 35 ++++++++-----
arch/sparc/include/asm/highmem.h | 4 -
arch/sparc/mm/highmem.c | 48 ++++++++++--------
arch/tile/include/asm/highmem.h | 10 +--
arch/tile/mm/highmem.c | 85 ++++++++-------------------------
arch/x86/include/asm/highmem.h | 11 ++--
arch/x86/include/asm/iomap.h | 4 -
arch/x86/kernel/crash_dump_32.c | 2
arch/x86/mm/highmem_32.c | 74 +++++++++++++++-------------
arch/x86/mm/iomap_32.c | 43 ++++++++++------
drivers/gpu/drm/i915/i915_gem.c | 9 +--
drivers/gpu/drm/i915/i915_irq.c | 5 -
drivers/gpu/drm/i915/intel_overlay.c | 5 -
drivers/gpu/drm/nouveau/nouveau_bios.c | 8 +--
drivers/gpu/drm/ttm/ttm_bo_util.c | 8 +--
include/linux/highmem.h | 61 +++++++++++++++--------
include/linux/io-mapping.h | 14 ++---
mm/highmem.c | 62 +-----------------------
28 files changed, 361 insertions(+), 363 deletions(-)
Index: linux-2.6/arch/arm/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/highmem.c
+++ linux-2.6/arch/arm/mm/highmem.c
@@ -36,18 +36,17 @@ void kunmap(struct page *page)
}
EXPORT_SYMBOL(kunmap);
-void *kmap_atomic(struct page *page, enum km_type type)
+void *__kmap_atomic(struct page *page)
{
unsigned int idx;
unsigned long vaddr;
void *kmap;
+ int type;
pagefault_disable();
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
-
#ifdef CONFIG_DEBUG_HIGHMEM
/*
* There is no cache coherency issue when non VIVT, so force the
@@ -61,6 +60,8 @@ void *kmap_atomic(struct page *page, enu
if (kmap)
return kmap;
+ type = kmap_atomic_idx_push();
+
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -80,14 +81,17 @@ void *kmap_atomic(struct page *page, enu
return (void *)vaddr;
}
-EXPORT_SYMBOL(kmap_atomic);
+EXPORT_SYMBOL(__kmap_atomic);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- unsigned int idx = type + KM_TYPE_NR * smp_processor_id();
+ int idx, type;
if (kvaddr >= (void *)FIXADDR_START) {
+ type = kmap_atomic_idx_pop();
+ idx = type + KM_TYPE_NR * smp_processor_id();
+
if (cache_is_vivt())
__cpuc_flush_dcache_area((void *)vaddr, PAGE_SIZE);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -103,15 +107,16 @@ void kunmap_atomic_notypecheck(void *kva
}
pagefault_enable();
}
-EXPORT_SYMBOL(kunmap_atomic_notypecheck);
+EXPORT_SYMBOL(__kunmap_atomic);
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
+void *kmap_atomic_pfn(unsigned long pfn)
{
- unsigned int idx;
unsigned long vaddr;
+ int idx, type;
pagefault_disable();
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
Index: linux-2.6/arch/frv/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/frv/include/asm/highmem.h
+++ linux-2.6/arch/frv/include/asm/highmem.h
@@ -112,12 +112,11 @@ extern struct page *kmap_atomic_to_page(
(void *) damlr; \
})
-static inline void *kmap_atomic(struct page *page, enum km_type type)
+static inline void *kmap_atomic_primary(struct page *page, enum km_type type)
{
unsigned long paddr;
pagefault_disable();
- debug_kmap_atomic(type);
paddr = page_to_phys(page);
switch (type) {
@@ -125,14 +124,6 @@ static inline void *kmap_atomic(struct p
case 1: return __kmap_atomic_primary(1, paddr, 3);
case 2: return __kmap_atomic_primary(2, paddr, 4);
case 3: return __kmap_atomic_primary(3, paddr, 5);
- case 4: return __kmap_atomic_primary(4, paddr, 6);
- case 5: return __kmap_atomic_primary(5, paddr, 7);
- case 6: return __kmap_atomic_primary(6, paddr, 8);
- case 7: return __kmap_atomic_primary(7, paddr, 9);
- case 8: return __kmap_atomic_primary(8, paddr, 10);
-
- case 9 ... 9 + NR_TLB_LINES - 1:
- return __kmap_atomic_secondary(type - 9, paddr);
default:
BUG();
@@ -152,22 +143,13 @@ do { \
asm volatile("tlbpr %0,gr0,#4,#1" : : "r"(vaddr) : "memory"); \
} while(0)
-static inline void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+static inline void kunmap_atomic_primary(void *kvaddr, enum km_type type)
{
switch (type) {
case 0: __kunmap_atomic_primary(0, 2); break;
case 1: __kunmap_atomic_primary(1, 3); break;
case 2: __kunmap_atomic_primary(2, 4); break;
case 3: __kunmap_atomic_primary(3, 5); break;
- case 4: __kunmap_atomic_primary(4, 6); break;
- case 5: __kunmap_atomic_primary(5, 7); break;
- case 6: __kunmap_atomic_primary(6, 8); break;
- case 7: __kunmap_atomic_primary(7, 9); break;
- case 8: __kunmap_atomic_primary(8, 10); break;
-
- case 9 ... 9 + NR_TLB_LINES - 1:
- __kunmap_atomic_secondary(type - 9, kvaddr);
- break;
default:
BUG();
@@ -175,6 +157,9 @@ static inline void kunmap_atomic_notypec
pagefault_enable();
}
+void *__kmap_atomic(struct page *page);
+void __kunmap_atomic(void *kvaddr);
+
#endif /* !__ASSEMBLY__ */
#endif /* __KERNEL__ */
Index: linux-2.6/arch/mips/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/mips/mm/highmem.c
+++ linux-2.6/arch/mips/mm/highmem.c
@@ -9,7 +9,7 @@ static pte_t *kmap_pte;
unsigned long highstart_pfn, highend_pfn;
-void *__kmap(struct page *page)
+void *kmap(struct page *page)
{
void *addr;
@@ -21,16 +21,16 @@ void *__kmap(struct page *page)
return addr;
}
-EXPORT_SYMBOL(__kmap);
+EXPORT_SYMBOL(kmap);
-void __kunmap(struct page *page)
+void kunmap(struct page *page)
{
BUG_ON(in_interrupt());
if (!PageHighMem(page))
return;
kunmap_high(page);
}
-EXPORT_SYMBOL(__kunmap);
+EXPORT_SYMBOL(kunmap);
/*
* kmap_atomic/kunmap_atomic is significantly faster than kmap/kunmap because
@@ -41,17 +41,17 @@ EXPORT_SYMBOL(__kunmap);
* kmaps are appropriate for short, tight code paths only.
*/
-void *__kmap_atomic(struct page *page, enum km_type type)
+void *__kmap_atomic(struct page *page)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
pagefault_disable();
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -64,43 +64,47 @@ void *__kmap_atomic(struct page *page, e
}
EXPORT_SYMBOL(__kmap_atomic);
-void __kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
-#ifdef CONFIG_DEBUG_HIGHMEM
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
+ int type;
if (vaddr < FIXADDR_START) { // FIXME
pagefault_enable();
return;
}
- BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
+ type = kmap_atomic_idx_pop();
+#ifdef CONFIG_DEBUG_HIGHMEM
+ {
+ int idx = type + KM_TYPE_NR * smp_processor_id();
- /*
- * force other mappings to Oops if they'll try to access
- * this pte without first remap it
- */
- pte_clear(&init_mm, vaddr, kmap_pte-idx);
- local_flush_tlb_one(vaddr);
-#endif
+ BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
+ /*
+ * force other mappings to Oops if they'll try to access
+ * this pte without first remap it
+ */
+ pte_clear(&init_mm, vaddr, kmap_pte-idx);
+ local_flush_tlb_one(vaddr);
+ }
+#endif
pagefault_enable();
}
-EXPORT_SYMBOL(__kunmap_atomic_notypecheck);
+EXPORT_SYMBOL(__kunmap_atomic);
/*
* This is the same as kmap_atomic() but can map memory that doesn't
* have a struct page associated with it.
*/
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
+void *kmap_atomic_pfn(unsigned long pfn)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
pagefault_disable();
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
set_pte(kmap_pte-idx, pfn_pte(pfn, PAGE_KERNEL));
@@ -109,7 +113,7 @@ void *kmap_atomic_pfn(unsigned long pfn,
return (void*) vaddr;
}
-struct page *__kmap_atomic_to_page(void *ptr)
+struct page *kmap_atomic_to_page(void *ptr)
{
unsigned long idx, vaddr = (unsigned long)ptr;
pte_t *pte;
Index: linux-2.6/arch/mn10300/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/mn10300/include/asm/highmem.h
+++ linux-2.6/arch/mn10300/include/asm/highmem.h
@@ -70,15 +70,16 @@ static inline void kunmap(struct page *p
* be used in IRQ contexts, so in some (very limited) cases we need
* it.
*/
-static inline unsigned long kmap_atomic(struct page *page, enum km_type type)
+static inline unsigned long __kmap_atomic(struct page *page)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
+ pagefault_disable();
if (page < highmem_start_page)
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#if HIGHMEM_DEBUG
@@ -91,26 +92,35 @@ static inline unsigned long kmap_atomic(
return vaddr;
}
-static inline void kunmap_atomic_notypecheck(unsigned long vaddr, enum km_type type)
+static inline void __kunmap_atomic(unsigned long vaddr)
{
-#if HIGHMEM_DEBUG
- enum fixed_addresses idx = type + KM_TYPE_NR * smp_processor_id();
+ int type;
- if (vaddr < FIXADDR_START) /* FIXME */
+ if (vaddr < FIXADDR_START) { /* FIXME */
+ pagefault_enable();
return;
+ }
- if (vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx))
- BUG();
+ type = kmap_atomic_idx_pop();
- /*
- * force other mappings to Oops if they'll try to access
- * this pte without first remap it
- */
- pte_clear(kmap_pte - idx);
- __flush_tlb_one(vaddr);
+#if HIGHMEM_DEBUG
+ {
+ unsigned int idx;
+ idx = type + KM_TYPE_NR * smp_processor_id();
+
+ if (vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx))
+ BUG();
+
+ /*
+ * force other mappings to Oops if they'll try to access
+ * this pte without first remap it
+ */
+ pte_clear(kmap_pte - idx);
+ __flush_tlb_one(vaddr);
+ }
#endif
+ pagefault_enable();
}
-
#endif /* __KERNEL__ */
#endif /* _ASM_HIGHMEM_H */
Index: linux-2.6/arch/powerpc/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/powerpc/mm/highmem.c
+++ linux-2.6/arch/powerpc/mm/highmem.c
@@ -29,17 +29,17 @@
* be used in IRQ contexts, so in some (very limited) cases we need
* it.
*/
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot(struct page *page, pgprot_t prot)
{
- unsigned int idx;
unsigned long vaddr;
+ int idx, type;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
pagefault_disable();
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -52,26 +52,33 @@ void *kmap_atomic_prot(struct page *page
}
EXPORT_SYMBOL(kmap_atomic_prot);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
-#ifdef CONFIG_DEBUG_HIGHMEM
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
+ int type;
if (vaddr < __fix_to_virt(FIX_KMAP_END)) {
pagefault_enable();
return;
}
- BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
+ type = kmap_atomic_idx_pop();
- /*
- * force other mappings to Oops if they'll try to access
- * this pte without first remap it
- */
- pte_clear(&init_mm, vaddr, kmap_pte-idx);
- local_flush_tlb_page(NULL, vaddr);
+#ifdef CONFIG_DEBUG_HIGHMEM
+ {
+ unsigned int idx;
+
+ idx = type + KM_TYPE_NR * smp_processor_id();
+ BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
+
+ /*
+ * force other mappings to Oops if they'll try to access
+ * this pte without first remap it
+ */
+ pte_clear(&init_mm, vaddr, kmap_pte-idx);
+ local_flush_tlb_page(NULL, vaddr);
+ }
#endif
pagefault_enable();
}
-EXPORT_SYMBOL(kunmap_atomic_notypecheck);
+EXPORT_SYMBOL(__kunmap_atomic);
Index: linux-2.6/arch/sparc/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/sparc/mm/highmem.c
+++ linux-2.6/arch/sparc/mm/highmem.c
@@ -29,17 +29,17 @@
#include <asm/tlbflush.h>
#include <asm/fixmap.h>
-void *kmap_atomic(struct page *page, enum km_type type)
+void *__kmap_atomic(struct page *page)
{
- unsigned long idx;
unsigned long vaddr;
+ long idx, type;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
pagefault_disable();
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
@@ -63,44 +63,50 @@ void *kmap_atomic(struct page *page, enu
return (void*) vaddr;
}
-EXPORT_SYMBOL(kmap_atomic);
+EXPORT_SYMBOL(__kmap_atomic);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
-#ifdef CONFIG_DEBUG_HIGHMEM
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- unsigned long idx = type + KM_TYPE_NR*smp_processor_id();
+ int type;
if (vaddr < FIXADDR_START) { // FIXME
pagefault_enable();
return;
}
- BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN+idx));
+ type = kmap_atomic_idx_pop();
-/* XXX Fix - Anton */
+#ifdef CONFIG_DEBUG_HIGHMEM
+ {
+ unsigned long idx;
+
+ idx = type + KM_TYPE_NR * smp_processor_id();
+ BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN+idx));
+
+ /* XXX Fix - Anton */
#if 0
- __flush_cache_one(vaddr);
+ __flush_cache_one(vaddr);
#else
- flush_cache_all();
+ flush_cache_all();
#endif
- /*
- * force other mappings to Oops if they'll try to access
- * this pte without first remap it
- */
- pte_clear(&init_mm, vaddr, kmap_pte-idx);
-/* XXX Fix - Anton */
+ /*
+ * force other mappings to Oops if they'll try to access
+ * this pte without first remap it
+ */
+ pte_clear(&init_mm, vaddr, kmap_pte-idx);
+ /* XXX Fix - Anton */
#if 0
- __flush_tlb_one(vaddr);
+ __flush_tlb_one(vaddr);
#else
- flush_tlb_all();
+ flush_tlb_all();
#endif
+ }
#endif
-
pagefault_enable();
}
-EXPORT_SYMBOL(kunmap_atomic_notypecheck);
+EXPORT_SYMBOL(__kunmap_atomic);
/* We may be fed a pagetable here by ptep_to_xxx and others. */
struct page *kmap_atomic_to_page(void *ptr)
Index: linux-2.6/arch/x86/mm/highmem_32.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/highmem_32.c
+++ linux-2.6/arch/x86/mm/highmem_32.c
@@ -9,6 +9,7 @@ void *kmap(struct page *page)
return page_address(page);
return kmap_high(page);
}
+EXPORT_SYMBOL(kmap);
void kunmap(struct page *page)
{
@@ -18,6 +19,7 @@ void kunmap(struct page *page)
return;
kunmap_high(page);
}
+EXPORT_SYMBOL(kunmap);
/*
* kmap_atomic/kunmap_atomic is significantly faster than kmap/kunmap because
@@ -27,10 +29,10 @@ void kunmap(struct page *page)
* However when holding an atomic kmap it is not legal to sleep, so atomic
* kmaps are appropriate for short, tight code paths only.
*/
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot(struct page *page, pgprot_t prot)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
pagefault_disable();
@@ -38,8 +40,7 @@ void *kmap_atomic_prot(struct page *page
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
-
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
BUG_ON(!pte_none(*(kmap_pte-idx)));
@@ -47,44 +48,57 @@ void *kmap_atomic_prot(struct page *page
return (void *)vaddr;
}
+EXPORT_SYMBOL(kmap_atomic_prot);
+
+void *__kmap_atomic(struct page *page)
+{
+ return kmap_atomic_prot(page, kmap_prot);
+}
+EXPORT_SYMBOL(__kmap_atomic);
-void *kmap_atomic(struct page *page, enum km_type type)
+/*
+ * This is the same as kmap_atomic() but can map memory that doesn't
+ * have a struct page associated with it.
+ */
+void *kmap_atomic_pfn(unsigned long pfn)
{
- return kmap_atomic_prot(page, type, kmap_prot);
+ return kmap_atomic_prot_pfn(pfn, kmap_prot);
}
+EXPORT_SYMBOL_GPL(kmap_atomic_pfn);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
- /*
- * Force other mappings to Oops if they'll try to access this pte
- * without first remap it. Keeping stale mappings around is a bad idea
- * also, in case the page changes cacheability attributes or becomes
- * a protected page in a hypervisor.
- */
- if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx))
+ if (vaddr >= __fix_to_virt(FIX_KMAP_END) &&
+ vaddr <= __fix_to_virt(FIX_KMAP_BEGIN)) {
+ int idx, type;
+
+ type = kmap_atomic_idx_pop();
+ idx = type + KM_TYPE_NR * smp_processor_id();
+
+#ifdef CONFIG_DEBUG_HIGHMEM
+ WARN_ON_ONCE(idx !=
+ ((vaddr - __fix_to_virt(FIX_KMAP_BEGIN)) >> PAGE_SHIFT));
+#endif
+ /*
+ * Force other mappings to Oops if they'll try to access this
+ * pte without first remap it. Keeping stale mappings around
+ * is a bad idea also, in case the page changes cacheability
+ * attributes or becomes a protected page in a hypervisor.
+ */
kpte_clear_flush(kmap_pte-idx, vaddr);
- else {
+ }
#ifdef CONFIG_DEBUG_HIGHMEM
+ else {
BUG_ON(vaddr < PAGE_OFFSET);
BUG_ON(vaddr >= (unsigned long)high_memory);
-#endif
}
+#endif
pagefault_enable();
}
-
-/*
- * This is the same as kmap_atomic() but can map memory that doesn't
- * have a struct page associated with it.
- */
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
-{
- return kmap_atomic_prot_pfn(pfn, type, kmap_prot);
-}
-EXPORT_SYMBOL_GPL(kmap_atomic_pfn); /* temporarily in use by i915 GEM until vmap */
+EXPORT_SYMBOL(__kunmap_atomic);
struct page *kmap_atomic_to_page(void *ptr)
{
@@ -98,12 +112,6 @@ struct page *kmap_atomic_to_page(void *p
pte = kmap_pte - (idx - FIX_KMAP_BEGIN);
return pte_page(*pte);
}
-
-EXPORT_SYMBOL(kmap);
-EXPORT_SYMBOL(kunmap);
-EXPORT_SYMBOL(kmap_atomic);
-EXPORT_SYMBOL(kunmap_atomic_notypecheck);
-EXPORT_SYMBOL(kmap_atomic_prot);
EXPORT_SYMBOL(kmap_atomic_to_page);
void __init set_highmem_pages_init(void)
Index: linux-2.6/include/linux/highmem.h
===================================================================
--- linux-2.6.orig/include/linux/highmem.h
+++ linux-2.6/include/linux/highmem.h
@@ -28,18 +28,6 @@ static inline void invalidate_kernel_vma
#include <asm/kmap_types.h>
-#ifdef CONFIG_DEBUG_HIGHMEM
-
-void debug_kmap_atomic(enum km_type type);
-
-#else
-
-static inline void debug_kmap_atomic(enum km_type type)
-{
-}
-
-#endif
-
#ifdef CONFIG_HIGHMEM
#include <asm/highmem.h>
@@ -49,6 +37,27 @@ extern unsigned long totalhigh_pages;
void kmap_flush_unused(void);
+DECLARE_PER_CPU(int, __kmap_atomic_idx);
+
+static inline int kmap_atomic_idx_push(void)
+{
+ int idx = __get_cpu_var(__kmap_atomic_idx)++;
+#ifdef CONFIG_DEBUG_HIGHMEM
+ WARN_ON_ONCE(in_irq() && !irqs_disabled());
+ BUG_ON(idx > KM_TYPE_NR);
+#endif
+ return idx;
+}
+
+static inline int kmap_atomic_idx_pop(void)
+{
+ int idx = --__get_cpu_var(__kmap_atomic_idx);
+#ifdef CONFIG_DEBUG_HIGHMEM
+ BUG_ON(idx < 0);
+#endif
+ return idx;
+}
+
#else /* CONFIG_HIGHMEM */
static inline unsigned int nr_free_highpages(void) { return 0; }
@@ -66,19 +75,19 @@ static inline void kunmap(struct page *p
{
}
-static inline void *kmap_atomic(struct page *page, enum km_type idx)
+static inline void *__kmap_atomic(struct page *page)
{
pagefault_disable();
return page_address(page);
}
-#define kmap_atomic_prot(page, idx, prot) kmap_atomic(page, idx)
+#define kmap_atomic_prot(page, prot) __kmap_atomic(page)
-static inline void kunmap_atomic_notypecheck(void *addr, enum km_type idx)
+static inline void __kunmap_atomic(void *addr)
{
pagefault_enable();
}
-#define kmap_atomic_pfn(pfn, idx) kmap_atomic(pfn_to_page(pfn), (idx))
+#define kmap_atomic_pfn(pfn) kmap_atomic(pfn_to_page(pfn))
#define kmap_atomic_to_page(ptr) virt_to_page(ptr)
#define kmap_flush_unused() do {} while(0)
@@ -86,12 +95,20 @@ static inline void kunmap_atomic_notypec
#endif /* CONFIG_HIGHMEM */
-/* Prevent people trying to call kunmap_atomic() as if it were kunmap() */
-/* kunmap_atomic() should get the return value of kmap_atomic, not the page. */
-#define kunmap_atomic(addr, idx) do { \
- BUILD_BUG_ON(__same_type((addr), struct page *)); \
- kunmap_atomic_notypecheck((addr), (idx)); \
- } while (0)
+/*
+ * Make both: kmap_atomic(page, idx) and kmap_atomic(page) work.
+ */
+#define kmap_atomic(page, args...) __kmap_atomic(page)
+
+/*
+ * Prevent people trying to call kunmap_atomic() as if it were kunmap()
+ * kunmap_atomic() should get the return value of kmap_atomic, not the page.
+ */
+#define kunmap_atomic(addr, args...) \
+do { \
+ BUILD_BUG_ON(__same_type((addr), struct page *)); \
+ __kunmap_atomic(addr); \
+} while (0)
/* when CONFIG_HIGHMEM is not set these will be plain clear/copy_page */
#ifndef clear_user_highpage
Index: linux-2.6/mm/highmem.c
===================================================================
--- linux-2.6.orig/mm/highmem.c
+++ linux-2.6/mm/highmem.c
@@ -42,6 +42,10 @@
unsigned long totalhigh_pages __read_mostly;
EXPORT_SYMBOL(totalhigh_pages);
+
+DEFINE_PER_CPU(int, __kmap_atomic_idx);
+EXPORT_PER_CPU_SYMBOL(__kmap_atomic_idx);
+
unsigned int nr_free_highpages (void)
{
pg_data_t *pgdat;
@@ -422,61 +426,3 @@ void __init page_address_init(void)
}
#endif /* defined(CONFIG_HIGHMEM) && !defined(WANT_PAGE_VIRTUAL) */
-
-#ifdef CONFIG_DEBUG_HIGHMEM
-
-void debug_kmap_atomic(enum km_type type)
-{
- static int warn_count = 10;
-
- if (unlikely(warn_count < 0))
- return;
-
- if (unlikely(in_interrupt())) {
- if (in_nmi()) {
- if (type != KM_NMI && type != KM_NMI_PTE) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (in_irq()) {
- if (type != KM_IRQ0 && type != KM_IRQ1 &&
- type != KM_BIO_SRC_IRQ && type != KM_BIO_DST_IRQ &&
- type != KM_BOUNCE_READ && type != KM_IRQ_PTE) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (!irqs_disabled()) { /* softirq */
- if (type != KM_IRQ0 && type != KM_IRQ1 &&
- type != KM_SOFTIRQ0 && type != KM_SOFTIRQ1 &&
- type != KM_SKB_SUNRPC_DATA &&
- type != KM_SKB_DATA_SOFTIRQ &&
- type != KM_BOUNCE_READ) {
- WARN_ON(1);
- warn_count--;
- }
- }
- }
-
- if (type == KM_IRQ0 || type == KM_IRQ1 || type == KM_BOUNCE_READ ||
- type == KM_BIO_SRC_IRQ || type == KM_BIO_DST_IRQ ||
- type == KM_IRQ_PTE || type == KM_NMI ||
- type == KM_NMI_PTE ) {
- if (!irqs_disabled()) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (type == KM_SOFTIRQ0 || type == KM_SOFTIRQ1) {
- if (irq_count() == 0 && !irqs_disabled()) {
- WARN_ON(1);
- warn_count--;
- }
- }
-#ifdef CONFIG_KGDB_KDB
- if (unlikely(type == KM_KDB && atomic_read(&kgdb_active) == -1)) {
- WARN_ON(1);
- warn_count--;
- }
-#endif /* CONFIG_KGDB_KDB */
-}
-
-#endif
Index: linux-2.6/arch/x86/mm/iomap_32.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/iomap_32.c
+++ linux-2.6/arch/x86/mm/iomap_32.c
@@ -48,21 +48,20 @@ int iomap_create_wc(resource_size_t base
}
EXPORT_SYMBOL_GPL(iomap_create_wc);
-void
-iomap_free(resource_size_t base, unsigned long size)
+void iomap_free(resource_size_t base, unsigned long size)
{
io_free_memtype(base, base + size);
}
EXPORT_SYMBOL_GPL(iomap_free);
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
pagefault_disable();
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
set_pte(kmap_pte - idx, pfn_pte(pfn, prot));
@@ -72,10 +71,10 @@ void *kmap_atomic_prot_pfn(unsigned long
}
/*
- * Map 'pfn' using fixed map 'type' and protections 'prot'
+ * Map 'pfn' using protections 'prot'
*/
void __iomem *
-iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
+iomap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
{
/*
* For non-PAT systems, promote PAGE_KERNEL_WC to PAGE_KERNEL_UC_MINUS.
@@ -86,24 +85,34 @@ iomap_atomic_prot_pfn(unsigned long pfn,
if (!pat_enabled && pgprot_val(prot) == pgprot_val(PAGE_KERNEL_WC))
prot = PAGE_KERNEL_UC_MINUS;
- return (void __force __iomem *) kmap_atomic_prot_pfn(pfn, type, prot);
+ return (void __force __iomem *) kmap_atomic_prot_pfn(pfn, prot);
}
EXPORT_SYMBOL_GPL(iomap_atomic_prot_pfn);
void
-iounmap_atomic(void __iomem *kvaddr, enum km_type type)
+iounmap_atomic(void __iomem *kvaddr)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
- /*
- * Force other mappings to Oops if they'll try to access this pte
- * without first remap it. Keeping stale mappings around is a bad idea
- * also, in case the page changes cacheability attributes or becomes
- * a protected page in a hypervisor.
- */
- if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx))
+ if (vaddr >= __fix_to_virt(FIX_KMAP_END) &&
+ vaddr <= __fix_to_virt(FIX_KMAP_BEGIN)) {
+ int idx, type;
+
+ type = kmap_atomic_idx_pop();
+ idx = type + KM_TYPE_NR * smp_processor_id();
+
+#ifdef CONFIG_DEBUG_HIGHMEM
+ WARN_ON_ONCE(idx !=
+ ((vaddr - __fix_to_virt(FIX_KMAP_BEGIN)) >> PAGE_SHIFT));
+#endif
+ /*
+ * Force other mappings to Oops if they'll try to access this
+ * pte without first remap it. Keeping stale mappings around
+ * is a bad idea also, in case the page changes cacheability
+ * attributes or becomes a protected page in a hypervisor.
+ */
kpte_clear_flush(kmap_pte-idx, vaddr);
+ }
pagefault_enable();
}
Index: linux-2.6/arch/frv/mb93090-mb00/pci-dma.c
===================================================================
--- linux-2.6.orig/arch/frv/mb93090-mb00/pci-dma.c
+++ linux-2.6/arch/frv/mb93090-mb00/pci-dma.c
@@ -61,14 +61,14 @@ int dma_map_sg(struct device *dev, struc
dampr2 = __get_DAMPR(2);
for (i = 0; i < nents; i++) {
- vaddr = kmap_atomic(sg_page(&sg[i]), __KM_CACHE);
+ vaddr = kmap_atomic_primary(sg_page(&sg[i]), __KM_CACHE);
frv_dcache_writeback((unsigned long) vaddr,
(unsigned long) vaddr + PAGE_SIZE);
}
- kunmap_atomic(vaddr, __KM_CACHE);
+ kunmap_atomic_primary(vaddr, __KM_CACHE);
if (dampr2) {
__set_DAMPR(2, dampr2);
__set_IAMPR(2, dampr2);
Index: linux-2.6/arch/frv/mm/cache-page.c
===================================================================
--- linux-2.6.orig/arch/frv/mm/cache-page.c
+++ linux-2.6/arch/frv/mm/cache-page.c
@@ -26,11 +26,11 @@ void flush_dcache_page(struct page *page
dampr2 = __get_DAMPR(2);
- vaddr = kmap_atomic(page, __KM_CACHE);
+ vaddr = kmap_atomic_primary(page, __KM_CACHE);
frv_dcache_writeback((unsigned long) vaddr, (unsigned long) vaddr + PAGE_SIZE);
- kunmap_atomic(vaddr, __KM_CACHE);
+ kunmap_atomic_primary(vaddr, __KM_CACHE);
if (dampr2) {
__set_DAMPR(2, dampr2);
@@ -54,12 +54,12 @@ void flush_icache_user_range(struct vm_a
dampr2 = __get_DAMPR(2);
- vaddr = kmap_atomic(page, __KM_CACHE);
+ vaddr = kmap_atomic_primary(page, __KM_CACHE);
start = (start & ~PAGE_MASK) | (unsigned long) vaddr;
frv_cache_wback_inv(start, start + len);
- kunmap_atomic(vaddr, __KM_CACHE);
+ kunmap_atomic_primary(vaddr, __KM_CACHE);
if (dampr2) {
__set_DAMPR(2, dampr2);
Index: linux-2.6/arch/frv/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/frv/mm/highmem.c
+++ linux-2.6/arch/frv/mm/highmem.c
@@ -36,3 +36,54 @@ struct page *kmap_atomic_to_page(void *p
{
return virt_to_page(ptr);
}
+
+void *__kmap_atomic(struct page *page)
+{
+ unsigned long paddr;
+ int type;
+
+ pagefault_disable();
+ type = kmap_atomic_idx_push();
+ paddr = page_to_phys(page);
+
+ switch (type) {
+ /*
+ * The first 4 primary maps are reserved for architecture code
+ */
+ case 0: return __kmap_atomic_primary(4, paddr, 6);
+ case 1: return __kmap_atomic_primary(5, paddr, 7);
+ case 2: return __kmap_atomic_primary(6, paddr, 8);
+ case 3: return __kmap_atomic_primary(7, paddr, 9);
+ case 4: return __kmap_atomic_primary(8, paddr, 10);
+
+ case 5 ... 5 + NR_TLB_LINES - 1:
+ return __kmap_atomic_secondary(type - 5, paddr);
+
+ default:
+ BUG();
+ return NULL;
+ }
+}
+EXPORT_SYMBOL(__kmap_atomic);
+
+void __kunmap_atomic(void *kvaddr)
+{
+ int type = kmap_atomic_idx_pop();
+ switch (type) {
+ case 0: __kunmap_atomic_primary(4, 6); break;
+ case 1: __kunmap_atomic_primary(5, 7); break;
+ case 2: __kunmap_atomic_primary(6, 8); break;
+ case 3: __kunmap_atomic_primary(7, 9); break;
+ case 4: __kunmap_atomic_primary(8, 10); break;
+
+ case 5 ... 5 + NR_TLB_LINES - 1:
+ __kunmap_atomic_secondary(type - 5, kvaddr);
+ break;
+
+ default:
+ BUG();
+ }
+ pagefault_enable();
+}
+EXPORT_SYMBOL(__kunmap_atomic);
+
Index: linux-2.6/arch/arm/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/arm/include/asm/highmem.h
+++ linux-2.6/arch/arm/include/asm/highmem.h
@@ -35,9 +35,9 @@ extern void kunmap_high_l1_vipt(struct p
#ifdef CONFIG_HIGHMEM
extern void *kmap(struct page *page);
extern void kunmap(struct page *page);
-extern void *kmap_atomic(struct page *page, enum km_type type);
-extern void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
-extern void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
+extern void *__kmap_atomic(struct page *page);
+extern void __kunmap_atomic(void *kvaddr);
+extern void *kmap_atomic_pfn(unsigned long pfn);
extern struct page *kmap_atomic_to_page(const void *ptr);
#endif
Index: linux-2.6/arch/mips/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/mips/include/asm/highmem.h
+++ linux-2.6/arch/mips/include/asm/highmem.h
@@ -45,18 +45,12 @@ extern pte_t *pkmap_page_table;
extern void * kmap_high(struct page *page);
extern void kunmap_high(struct page *page);
-extern void *__kmap(struct page *page);
-extern void __kunmap(struct page *page);
-extern void *__kmap_atomic(struct page *page, enum km_type type);
-extern void __kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
-extern void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
-extern struct page *__kmap_atomic_to_page(void *ptr);
-
-#define kmap __kmap
-#define kunmap __kunmap
-#define kmap_atomic __kmap_atomic
-#define kunmap_atomic_notypecheck __kunmap_atomic_notypecheck
-#define kmap_atomic_to_page __kmap_atomic_to_page
+extern void *kmap(struct page *page);
+extern void kunmap(struct page *page);
+extern void *__kmap_atomic(struct page *page);
+extern void __kunmap_atomic(void *kvaddr);
+extern void *kmap_atomic_pfn(unsigned long pfn);
+extern struct page *kmap_atomic_to_page(void *ptr);
#define flush_cache_kmaps() flush_cache_all()
Index: linux-2.6/arch/powerpc/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/powerpc/include/asm/highmem.h
+++ linux-2.6/arch/powerpc/include/asm/highmem.h
@@ -60,9 +60,8 @@ extern pte_t *pkmap_page_table;
extern void *kmap_high(struct page *page);
extern void kunmap_high(struct page *page);
-extern void *kmap_atomic_prot(struct page *page, enum km_type type,
- pgprot_t prot);
-extern void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
+extern void *kmap_atomic_prot(struct page *page, pgprot_t prot);
+extern void __kunmap_atomic(void *kvaddr);
static inline void *kmap(struct page *page)
{
@@ -80,9 +79,9 @@ static inline void kunmap(struct page *p
kunmap_high(page);
}
-static inline void *kmap_atomic(struct page *page, enum km_type type)
+static inline void *__kmap_atomic(struct page *page)
{
- return kmap_atomic_prot(page, type, kmap_prot);
+ return kmap_atomic_prot(page, kmap_prot);
}
static inline struct page *kmap_atomic_to_page(void *ptr)
Index: linux-2.6/arch/sparc/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/sparc/include/asm/highmem.h
+++ linux-2.6/arch/sparc/include/asm/highmem.h
@@ -70,8 +70,8 @@ static inline void kunmap(struct page *p
kunmap_high(page);
}
-extern void *kmap_atomic(struct page *page, enum km_type type);
-extern void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
+extern void *__kmap_atomic(struct page *page);
+extern void __kunmap_atomic(void *kvaddr);
extern struct page *kmap_atomic_to_page(void *vaddr);
#define flush_cache_kmaps() flush_cache_all()
Index: linux-2.6/arch/tile/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/tile/include/asm/highmem.h
+++ linux-2.6/arch/tile/include/asm/highmem.h
@@ -60,12 +60,12 @@ void *kmap_fix_kpte(struct page *page, i
/* This macro is used only in map_new_virtual() to map "page". */
#define kmap_prot page_to_kpgprot(page)
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
+void *__kmap_atomic(struct page *page);
+void __kunmap_atomic(void *kvaddr);
+void *kmap_atomic_pfn(unsigned long pfn);
+void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
struct page *kmap_atomic_to_page(void *ptr);
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot);
-void *kmap_atomic(struct page *page, enum km_type type);
+void *kmap_atomic_prot(struct page *page, pgprot_t prot);
void kmap_atomic_fix_kpte(struct page *page, int finished);
#define flush_cache_kmaps() do { } while (0)
Index: linux-2.6/arch/tile/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/tile/mm/highmem.c
+++ linux-2.6/arch/tile/mm/highmem.c
@@ -56,50 +56,6 @@ void kunmap(struct page *page)
}
EXPORT_SYMBOL(kunmap);
-static void debug_kmap_atomic_prot(enum km_type type)
-{
-#ifdef CONFIG_DEBUG_HIGHMEM
- static unsigned warn_count = 10;
-
- if (unlikely(warn_count == 0))
- return;
-
- if (unlikely(in_interrupt())) {
- if (in_irq()) {
- if (type != KM_IRQ0 && type != KM_IRQ1 &&
- type != KM_BIO_SRC_IRQ &&
- /* type != KM_BIO_DST_IRQ && */
- type != KM_BOUNCE_READ) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (!irqs_disabled()) { /* softirq */
- if (type != KM_IRQ0 && type != KM_IRQ1 &&
- type != KM_SOFTIRQ0 && type != KM_SOFTIRQ1 &&
- type != KM_SKB_SUNRPC_DATA &&
- type != KM_SKB_DATA_SOFTIRQ &&
- type != KM_BOUNCE_READ) {
- WARN_ON(1);
- warn_count--;
- }
- }
- }
-
- if (type == KM_IRQ0 || type == KM_IRQ1 || type == KM_BOUNCE_READ ||
- type == KM_BIO_SRC_IRQ /* || type == KM_BIO_DST_IRQ */) {
- if (!irqs_disabled()) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (type == KM_SOFTIRQ0 || type == KM_SOFTIRQ1) {
- if (irq_count() == 0 && !irqs_disabled()) {
- WARN_ON(1);
- warn_count--;
- }
- }
-#endif
-}
-
/*
* Describe a single atomic mapping of a page on a given cpu at a
* given address, and allow it to be linked into a list.
@@ -240,10 +196,10 @@ void kmap_atomic_fix_kpte(struct page *p
* When holding an atomic kmap is is not legal to sleep, so atomic
* kmaps are appropriate for short, tight code paths only.
*/
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot(struct page *page, pgprot_t prot)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
pte_t *pte;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
@@ -255,8 +211,7 @@ void *kmap_atomic_prot(struct page *page
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic_prot(type);
-
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
pte = kmap_get_pte(vaddr);
@@ -269,25 +224,31 @@ void *kmap_atomic_prot(struct page *page
}
EXPORT_SYMBOL(kmap_atomic_prot);
-void *kmap_atomic(struct page *page, enum km_type type)
+void *__kmap_atomic(struct page *page)
{
/* PAGE_NONE is a magic value that tells us to check immutability. */
return kmap_atomic_prot(page, type, PAGE_NONE);
}
-EXPORT_SYMBOL(kmap_atomic);
+EXPORT_SYMBOL(__kmap_atomic);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
- /*
- * Force other mappings to Oops if they try to access this pte without
- * first remapping it. Keeping stale mappings around is a bad idea.
- */
- if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx)) {
+ if (vaddr >= __fix_to_virt(FIX_KMAP_END) &&
+ vaddr <= __fix_to_virt(FIX_KMAP_BEGIN)) {
pte_t *pte = kmap_get_pte(vaddr);
pte_t pteval = *pte;
+ int idx, type;
+
+ type = kmap_atomic_idx_pop();
+ idx = type + KM_TYPE_NR*smp_processor_id();
+
+ /*
+ * Force other mappings to Oops if they try to access this pte
+ * without first remapping it. Keeping stale mappings around
+ * is a bad idea.
+ */
BUG_ON(!pte_present(pteval) && !pte_migrating(pteval));
kmap_atomic_unregister(pte_page(pteval), vaddr);
kpte_clear_flush(pte, vaddr);
@@ -300,19 +261,19 @@ void kunmap_atomic_notypecheck(void *kva
arch_flush_lazy_mmu_mode();
pagefault_enable();
}
-EXPORT_SYMBOL(kunmap_atomic_notypecheck);
+EXPORT_SYMBOL(__kunmap_atomic);
/*
* This API is supposed to allow us to map memory without a "struct page".
* Currently we don't support this, though this may change in the future.
*/
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
+void *kmap_atomic_pfn(unsigned long pfn)
{
- return kmap_atomic(pfn_to_page(pfn), type);
+ return kmap_atomic(pfn_to_page(pfn));
}
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
{
- return kmap_atomic_prot(pfn_to_page(pfn), type, prot);
+ return kmap_atomic_prot(pfn_to_page(pfn), prot);
}
struct page *kmap_atomic_to_page(void *ptr)
Index: linux-2.6/arch/x86/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/highmem.h
+++ linux-2.6/arch/x86/include/asm/highmem.h
@@ -59,11 +59,12 @@ extern void kunmap_high(struct page *pag
void *kmap(struct page *page);
void kunmap(struct page *page);
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot);
-void *kmap_atomic(struct page *page, enum km_type type);
-void kunmap_atomic_notypecheck(void *kvaddr, enum km_type type);
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
+
+void *kmap_atomic_prot(struct page *page, pgprot_t prot);
+void *__kmap_atomic(struct page *page);
+void __kunmap_atomic(void *kvaddr);
+void *kmap_atomic_pfn(unsigned long pfn);
+void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
struct page *kmap_atomic_to_page(void *ptr);
#define flush_cache_kmaps() do { } while (0)
Index: linux-2.6/arch/x86/kernel/crash_dump_32.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/crash_dump_32.c
+++ linux-2.6/arch/x86/kernel/crash_dump_32.c
@@ -61,7 +61,7 @@ ssize_t copy_oldmem_page(unsigned long p
if (!is_crashed_pfn_valid(pfn))
return -EFAULT;
- vaddr = kmap_atomic_pfn(pfn, KM_PTE0);
+ vaddr = kmap_atomic_pfn(pfn);
if (!userbuf) {
memcpy(buf, (vaddr + offset), csize);
Index: linux-2.6/arch/x86/include/asm/iomap.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/iomap.h
+++ linux-2.6/arch/x86/include/asm/iomap.h
@@ -27,10 +27,10 @@
#include <asm/tlbflush.h>
void __iomem *
-iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
+iomap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
void
-iounmap_atomic(void __iomem *kvaddr, enum km_type type);
+iounmap_atomic(void __iomem *kvaddr);
int
iomap_create_wc(resource_size_t base, unsigned long size, pgprot_t *prot);
Index: linux-2.6/drivers/gpu/drm/i915/i915_gem.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/i915/i915_gem.c
+++ linux-2.6/drivers/gpu/drm/i915/i915_gem.c
@@ -508,10 +508,10 @@ fast_user_write(struct io_mapping *mappi
char *vaddr_atomic;
unsigned long unwritten;
- vaddr_atomic = io_mapping_map_atomic_wc(mapping, page_base, KM_USER0);
+ vaddr_atomic = io_mapping_map_atomic_wc(mapping, page_base);
unwritten = __copy_from_user_inatomic_nocache(vaddr_atomic + page_offset,
user_data, length);
- io_mapping_unmap_atomic(vaddr_atomic, KM_USER0);
+ io_mapping_unmap_atomic(vaddr_atomic);
if (unwritten)
return -EFAULT;
return 0;
@@ -3331,8 +3331,7 @@ i915_gem_object_pin_and_relocate(struct
reloc_offset = obj_priv->gtt_offset + reloc->offset;
reloc_page = io_mapping_map_atomic_wc(dev_priv->mm.gtt_mapping,
(reloc_offset &
- ~(PAGE_SIZE - 1)),
- KM_USER0);
+ ~(PAGE_SIZE - 1)));
reloc_entry = (uint32_t __iomem *)(reloc_page +
(reloc_offset & (PAGE_SIZE - 1)));
reloc_val = target_obj_priv->gtt_offset + reloc->delta;
@@ -3343,7 +3342,7 @@ i915_gem_object_pin_and_relocate(struct
readl(reloc_entry), reloc_val);
#endif
writel(reloc_val, reloc_entry);
- io_mapping_unmap_atomic(reloc_page, KM_USER0);
+ io_mapping_unmap_atomic(reloc_page);
/* The updated presumed offset for this entry will be
* copied back out to the user.
Index: linux-2.6/drivers/gpu/drm/i915/i915_irq.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/i915/i915_irq.c
+++ linux-2.6/drivers/gpu/drm/i915/i915_irq.c
@@ -456,10 +456,9 @@ i915_error_object_create(struct drm_devi
local_irq_save(flags);
s = io_mapping_map_atomic_wc(dev_priv->mm.gtt_mapping,
- reloc_offset,
- KM_IRQ0);
+ reloc_offset);
memcpy_fromio(d, s, PAGE_SIZE);
- io_mapping_unmap_atomic(s, KM_IRQ0);
+ io_mapping_unmap_atomic(s);
local_irq_restore(flags);
dst->pages[page] = d;
Index: linux-2.6/drivers/gpu/drm/i915/intel_overlay.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/i915/intel_overlay.c
+++ linux-2.6/drivers/gpu/drm/i915/intel_overlay.c
@@ -187,8 +187,7 @@ static struct overlay_registers *intel_o
if (OVERLAY_NONPHYSICAL(overlay->dev)) {
regs = io_mapping_map_atomic_wc(dev_priv->mm.gtt_mapping,
- overlay->reg_bo->gtt_offset,
- KM_USER0);
+ overlay->reg_bo->gtt_offset);
if (!regs) {
DRM_ERROR("failed to map overlay regs in GTT\n");
@@ -203,7 +202,7 @@ static struct overlay_registers *intel_o
static void intel_overlay_unmap_regs_atomic(struct intel_overlay *overlay)
{
if (OVERLAY_NONPHYSICAL(overlay->dev))
- io_mapping_unmap_atomic(overlay->virt_addr, KM_USER0);
+ io_mapping_unmap_atomic(overlay->virt_addr);
overlay->virt_addr = NULL;
Index: linux-2.6/drivers/gpu/drm/ttm/ttm_bo_util.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ linux-2.6/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -170,7 +170,7 @@ static int ttm_copy_io_ttm_page(struct t
src = (void *)((unsigned long)src + (page << PAGE_SHIFT));
#ifdef CONFIG_X86
- dst = kmap_atomic_prot(d, KM_USER0, prot);
+ dst = kmap_atomic_prot(d, prot);
#else
if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
dst = vmap(&d, 1, 0, prot);
@@ -183,7 +183,7 @@ static int ttm_copy_io_ttm_page(struct t
memcpy_fromio(dst, src, PAGE_SIZE);
#ifdef CONFIG_X86
- kunmap_atomic(dst, KM_USER0);
+ kunmap_atomic(dst);
#else
if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
vunmap(dst);
@@ -206,7 +206,7 @@ static int ttm_copy_ttm_io_page(struct t
dst = (void *)((unsigned long)dst + (page << PAGE_SHIFT));
#ifdef CONFIG_X86
- src = kmap_atomic_prot(s, KM_USER0, prot);
+ src = kmap_atomic_prot(s, prot);
#else
if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
src = vmap(&s, 1, 0, prot);
@@ -219,7 +219,7 @@ static int ttm_copy_ttm_io_page(struct t
memcpy_toio(dst, src, PAGE_SIZE);
#ifdef CONFIG_X86
- kunmap_atomic(src, KM_USER0);
+ kunmap_atomic(src);
#else
if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
vunmap(src);
Index: linux-2.6/include/linux/io-mapping.h
===================================================================
--- linux-2.6.orig/include/linux/io-mapping.h
+++ linux-2.6/include/linux/io-mapping.h
@@ -81,8 +81,7 @@ io_mapping_free(struct io_mapping *mappi
/* Atomic map/unmap */
static inline void __iomem *
io_mapping_map_atomic_wc(struct io_mapping *mapping,
- unsigned long offset,
- int slot)
+ unsigned long offset)
{
resource_size_t phys_addr;
unsigned long pfn;
@@ -90,13 +89,13 @@ io_mapping_map_atomic_wc(struct io_mappi
BUG_ON(offset >= mapping->size);
phys_addr = mapping->base + offset;
pfn = (unsigned long) (phys_addr >> PAGE_SHIFT);
- return iomap_atomic_prot_pfn(pfn, slot, mapping->prot);
+ return iomap_atomic_prot_pfn(pfn, mapping->prot);
}
static inline void
-io_mapping_unmap_atomic(void __iomem *vaddr, int slot)
+io_mapping_unmap_atomic(void __iomem *vaddr)
{
- iounmap_atomic(vaddr, slot);
+ iounmap_atomic(vaddr);
}
static inline void __iomem *
@@ -137,14 +136,13 @@ io_mapping_free(struct io_mapping *mappi
/* Atomic map/unmap */
static inline void __iomem *
io_mapping_map_atomic_wc(struct io_mapping *mapping,
- unsigned long offset,
- int slot)
+ unsigned long offset)
{
return ((char __force __iomem *) mapping) + offset;
}
static inline void
-io_mapping_unmap_atomic(void __iomem *vaddr, int slot)
+io_mapping_unmap_atomic(void __iomem *vaddr)
{
}
Index: linux-2.6/drivers/gpu/drm/nouveau/nouveau_bios.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ linux-2.6/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -2167,11 +2167,11 @@ peek_fb(struct drm_device *dev, struct i
if (off < pci_resource_len(dev->pdev, 1)) {
uint8_t __iomem *p =
- io_mapping_map_atomic_wc(fb, off & PAGE_MASK, KM_USER0);
+ io_mapping_map_atomic_wc(fb, off & PAGE_MASK);
val = ioread32(p + (off & ~PAGE_MASK));
- io_mapping_unmap_atomic(p, KM_USER0);
+ io_mapping_unmap_atomic(p);
}
return val;
@@ -2183,12 +2183,12 @@ poke_fb(struct drm_device *dev, struct i
{
if (off < pci_resource_len(dev->pdev, 1)) {
uint8_t __iomem *p =
- io_mapping_map_atomic_wc(fb, off & PAGE_MASK, KM_USER0);
+ io_mapping_map_atomic_wc(fb, off & PAGE_MASK);
iowrite32(val, p + (off & ~PAGE_MASK));
wmb();
- io_mapping_unmap_atomic(p, KM_USER0);
+ io_mapping_unmap_atomic(p);
}
}
--
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^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH 0/5] mm, highmem: kmap_atomic rework -v3
2010-09-18 15:53 ` Peter Zijlstra
(?)
@ 2010-10-27 10:27 ` Chris Wilson
-1 siblings, 0 replies; 24+ messages in thread
From: Chris Wilson @ 2010-10-27 10:27 UTC (permalink / raw)
To: Peter Zijlstra, Linus Torvalds
Cc: Andrew Morton, linux-kernel, linux-mm, linux-arch
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 858 bytes --]
On Sat, 18 Sep 2010 17:53:26 +0200, Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
> Next version of the kmap_atomic rework using Andrew's fancy CPP trickery to
> avoid having to convert the whole tree at once.
>
> This is compile tested for i386-allmodconfig, frv, mips-sb1250-swarm,
> powerpc-ppc6xx_defconfig, sparc32_defconfig, arm-omap3 (all with
> HIGHEM=y).
This break on x86, HIGHMEM=n:
arch/x86/mm/iomap_32.c: In function ‘kmap_atomic_prot_pfn’:
arch/x86/mm/iomap_32.c:64: error: implicit declaration of function
‘kmap_atomic_idx_push’
arch/x86/mm/iomap_32.c: In function ‘iounmap_atomic’:
arch/x86/mm/iomap_32.c:101: error: implicit declaration of function
‘kmap_atomic_idx_pop’
The use of the kmap idx there looks a little delicate so I'm not sure how
to fix this.
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH 0/5] mm, highmem: kmap_atomic rework -v3
@ 2010-10-27 10:27 ` Chris Wilson
0 siblings, 0 replies; 24+ messages in thread
From: Chris Wilson @ 2010-10-27 10:27 UTC (permalink / raw)
To: Peter Zijlstra, Linus Torvalds
Cc: Andrew Morton, linux-kernel, linux-mm, linux-arch
On Sat, 18 Sep 2010 17:53:26 +0200, Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
> Next version of the kmap_atomic rework using Andrew's fancy CPP trickery to
> avoid having to convert the whole tree at once.
>
> This is compile tested for i386-allmodconfig, frv, mips-sb1250-swarm,
> powerpc-ppc6xx_defconfig, sparc32_defconfig, arm-omap3 (all with
> HIGHEM=y).
This break on x86, HIGHMEM=n:
arch/x86/mm/iomap_32.c: In function ‘kmap_atomic_prot_pfn’:
arch/x86/mm/iomap_32.c:64: error: implicit declaration of function
‘kmap_atomic_idx_push’
arch/x86/mm/iomap_32.c: In function ‘iounmap_atomic’:
arch/x86/mm/iomap_32.c:101: error: implicit declaration of function
‘kmap_atomic_idx_pop’
The use of the kmap idx there looks a little delicate so I'm not sure how
to fix this.
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH 0/5] mm, highmem: kmap_atomic rework -v3
@ 2010-10-27 10:27 ` Chris Wilson
0 siblings, 0 replies; 24+ messages in thread
From: Chris Wilson @ 2010-10-27 10:27 UTC (permalink / raw)
To: Peter Zijlstra, Linus Torvalds
Cc: Andrew Morton, linux-kernel, linux-mm, linux-arch
On Sat, 18 Sep 2010 17:53:26 +0200, Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
> Next version of the kmap_atomic rework using Andrew's fancy CPP trickery to
> avoid having to convert the whole tree at once.
>
> This is compile tested for i386-allmodconfig, frv, mips-sb1250-swarm,
> powerpc-ppc6xx_defconfig, sparc32_defconfig, arm-omap3 (all with
> HIGHEM=y).
This break on x86, HIGHMEM=n:
arch/x86/mm/iomap_32.c: In function a??kmap_atomic_prot_pfna??:
arch/x86/mm/iomap_32.c:64: error: implicit declaration of function
a??kmap_atomic_idx_pusha??
arch/x86/mm/iomap_32.c: In function a??iounmap_atomica??:
arch/x86/mm/iomap_32.c:101: error: implicit declaration of function
a??kmap_atomic_idx_popa??
The use of the kmap idx there looks a little delicate so I'm not sure how
to fix this.
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
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^ permalink raw reply [flat|nested] 24+ messages in thread
* [PATCH] mm,x86: fix kmap_atomic_push vs ioremap_32.c
2010-10-27 10:27 ` Chris Wilson
(?)
@ 2010-10-27 10:33 ` Peter Zijlstra
-1 siblings, 0 replies; 24+ messages in thread
From: Peter Zijlstra @ 2010-10-27 10:33 UTC (permalink / raw)
To: Chris Wilson
Cc: Linus Torvalds, Andrew Morton, linux-kernel, linux-mm,
linux-arch, Christoph Hellwig
On Wed, 2010-10-27 at 11:27 +0100, Chris Wilson wrote:
> On Sat, 18 Sep 2010 17:53:26 +0200, Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
> > Next version of the kmap_atomic rework using Andrew's fancy CPP trickery to
> > avoid having to convert the whole tree at once.
> >
> > This is compile tested for i386-allmodconfig, frv, mips-sb1250-swarm,
> > powerpc-ppc6xx_defconfig, sparc32_defconfig, arm-omap3 (all with
> > HIGHEM=y).
>
> This break on x86, HIGHMEM=n:
>
> arch/x86/mm/iomap_32.c: In function ‘kmap_atomic_prot_pfn’:
> arch/x86/mm/iomap_32.c:64: error: implicit declaration of function
> ‘kmap_atomic_idx_push’
> arch/x86/mm/iomap_32.c: In function ‘iounmap_atomic’:
> arch/x86/mm/iomap_32.c:101: error: implicit declaration of function
> ‘kmap_atomic_idx_pop’
Christoph just complained about the same on IRC, the below seems to cure
things for i386-defconfig with CONFIG_HIGHMEM=n
---
Subject: mm,x86: fix kmap_atomic_push vs ioremap_32.c
It appears i386 uses kmap_atomic infrastructure regardless of
CONFIG_HIGHMEM which results in a compile error when highmem is
disabled.
Cure this by providing the needed few bits for both CONFIG_HIGHMEM and
CONFIG_X86_32.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
---
include/linux/highmem.h | 46 +++++++++++++++++++++++++---------------------
mm/highmem.c | 6 +++++-
2 files changed, 30 insertions(+), 22 deletions(-)
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 8a85ec1..102f76b 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -37,27 +37,6 @@ extern unsigned long totalhigh_pages;
void kmap_flush_unused(void);
-DECLARE_PER_CPU(int, __kmap_atomic_idx);
-
-static inline int kmap_atomic_idx_push(void)
-{
- int idx = __get_cpu_var(__kmap_atomic_idx)++;
-#ifdef CONFIG_DEBUG_HIGHMEM
- WARN_ON_ONCE(in_irq() && !irqs_disabled());
- BUG_ON(idx > KM_TYPE_NR);
-#endif
- return idx;
-}
-
-static inline int kmap_atomic_idx_pop(void)
-{
- int idx = --__get_cpu_var(__kmap_atomic_idx);
-#ifdef CONFIG_DEBUG_HIGHMEM
- BUG_ON(idx < 0);
-#endif
- return idx;
-}
-
#else /* CONFIG_HIGHMEM */
static inline unsigned int nr_free_highpages(void) { return 0; }
@@ -95,6 +74,31 @@ static inline void __kunmap_atomic(void *addr)
#endif /* CONFIG_HIGHMEM */
+#if defined(CONFIG_HIGHMEM) || defined(CONFIG_X86_32)
+
+DECLARE_PER_CPU(int, __kmap_atomic_idx);
+
+static inline int kmap_atomic_idx_push(void)
+{
+ int idx = __get_cpu_var(__kmap_atomic_idx)++;
+#ifdef CONFIG_DEBUG_HIGHMEM
+ WARN_ON_ONCE(in_irq() && !irqs_disabled());
+ BUG_ON(idx > KM_TYPE_NR);
+#endif
+ return idx;
+}
+
+static inline int kmap_atomic_idx_pop(void)
+{
+ int idx = --__get_cpu_var(__kmap_atomic_idx);
+#ifdef CONFIG_DEBUG_HIGHMEM
+ BUG_ON(idx < 0);
+#endif
+ return idx;
+}
+
+#endif
+
/*
* Make both: kmap_atomic(page, idx) and kmap_atomic(page) work.
*/
diff --git a/mm/highmem.c b/mm/highmem.c
index 781e754..693394d 100644
--- a/mm/highmem.c
+++ b/mm/highmem.c
@@ -29,6 +29,11 @@
#include <linux/kgdb.h>
#include <asm/tlbflush.h>
+
+#if defined(CONFIG_HIGHMEM) || defined(CONFIG_X86_32)
+DEFINE_PER_CPU(int, __kmap_atomic_idx);
+#endif
+
/*
* Virtual_count is not a pure "count".
* 0 means that it is not mapped, and has not been mapped
@@ -43,7 +48,6 @@ unsigned long totalhigh_pages __read_mostly;
EXPORT_SYMBOL(totalhigh_pages);
-DEFINE_PER_CPU(int, __kmap_atomic_idx);
EXPORT_PER_CPU_SYMBOL(__kmap_atomic_idx);
unsigned int nr_free_highpages (void)
^ permalink raw reply related [flat|nested] 24+ messages in thread
* [PATCH] mm,x86: fix kmap_atomic_push vs ioremap_32.c
@ 2010-10-27 10:33 ` Peter Zijlstra
0 siblings, 0 replies; 24+ messages in thread
From: Peter Zijlstra @ 2010-10-27 10:33 UTC (permalink / raw)
To: Chris Wilson
Cc: Linus Torvalds, Andrew Morton, linux-kernel, linux-mm,
linux-arch, Christoph Hellwig
On Wed, 2010-10-27 at 11:27 +0100, Chris Wilson wrote:
> On Sat, 18 Sep 2010 17:53:26 +0200, Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
> > Next version of the kmap_atomic rework using Andrew's fancy CPP trickery to
> > avoid having to convert the whole tree at once.
> >
> > This is compile tested for i386-allmodconfig, frv, mips-sb1250-swarm,
> > powerpc-ppc6xx_defconfig, sparc32_defconfig, arm-omap3 (all with
> > HIGHEM=y).
>
> This break on x86, HIGHMEM=n:
>
> arch/x86/mm/iomap_32.c: In function ‘kmap_atomic_prot_pfn’:
> arch/x86/mm/iomap_32.c:64: error: implicit declaration of function
> ‘kmap_atomic_idx_push’
> arch/x86/mm/iomap_32.c: In function ‘iounmap_atomic’:
> arch/x86/mm/iomap_32.c:101: error: implicit declaration of function
> ‘kmap_atomic_idx_pop’
Christoph just complained about the same on IRC, the below seems to cure
things for i386-defconfig with CONFIG_HIGHMEM=n
---
Subject: mm,x86: fix kmap_atomic_push vs ioremap_32.c
It appears i386 uses kmap_atomic infrastructure regardless of
CONFIG_HIGHMEM which results in a compile error when highmem is
disabled.
Cure this by providing the needed few bits for both CONFIG_HIGHMEM and
CONFIG_X86_32.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
---
include/linux/highmem.h | 46 +++++++++++++++++++++++++---------------------
mm/highmem.c | 6 +++++-
2 files changed, 30 insertions(+), 22 deletions(-)
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 8a85ec1..102f76b 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -37,27 +37,6 @@ extern unsigned long totalhigh_pages;
void kmap_flush_unused(void);
-DECLARE_PER_CPU(int, __kmap_atomic_idx);
-
-static inline int kmap_atomic_idx_push(void)
-{
- int idx = __get_cpu_var(__kmap_atomic_idx)++;
-#ifdef CONFIG_DEBUG_HIGHMEM
- WARN_ON_ONCE(in_irq() && !irqs_disabled());
- BUG_ON(idx > KM_TYPE_NR);
-#endif
- return idx;
-}
-
-static inline int kmap_atomic_idx_pop(void)
-{
- int idx = --__get_cpu_var(__kmap_atomic_idx);
-#ifdef CONFIG_DEBUG_HIGHMEM
- BUG_ON(idx < 0);
-#endif
- return idx;
-}
-
#else /* CONFIG_HIGHMEM */
static inline unsigned int nr_free_highpages(void) { return 0; }
@@ -95,6 +74,31 @@ static inline void __kunmap_atomic(void *addr)
#endif /* CONFIG_HIGHMEM */
+#if defined(CONFIG_HIGHMEM) || defined(CONFIG_X86_32)
+
+DECLARE_PER_CPU(int, __kmap_atomic_idx);
+
+static inline int kmap_atomic_idx_push(void)
+{
+ int idx = __get_cpu_var(__kmap_atomic_idx)++;
+#ifdef CONFIG_DEBUG_HIGHMEM
+ WARN_ON_ONCE(in_irq() && !irqs_disabled());
+ BUG_ON(idx > KM_TYPE_NR);
+#endif
+ return idx;
+}
+
+static inline int kmap_atomic_idx_pop(void)
+{
+ int idx = --__get_cpu_var(__kmap_atomic_idx);
+#ifdef CONFIG_DEBUG_HIGHMEM
+ BUG_ON(idx < 0);
+#endif
+ return idx;
+}
+
+#endif
+
/*
* Make both: kmap_atomic(page, idx) and kmap_atomic(page) work.
*/
diff --git a/mm/highmem.c b/mm/highmem.c
index 781e754..693394d 100644
--- a/mm/highmem.c
+++ b/mm/highmem.c
@@ -29,6 +29,11 @@
#include <linux/kgdb.h>
#include <asm/tlbflush.h>
+
+#if defined(CONFIG_HIGHMEM) || defined(CONFIG_X86_32)
+DEFINE_PER_CPU(int, __kmap_atomic_idx);
+#endif
+
/*
* Virtual_count is not a pure "count".
* 0 means that it is not mapped, and has not been mapped
@@ -43,7 +48,6 @@ unsigned long totalhigh_pages __read_mostly;
EXPORT_SYMBOL(totalhigh_pages);
-DEFINE_PER_CPU(int, __kmap_atomic_idx);
EXPORT_PER_CPU_SYMBOL(__kmap_atomic_idx);
unsigned int nr_free_highpages (void)
--
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^ permalink raw reply related [flat|nested] 24+ messages in thread
* [PATCH] mm,x86: fix kmap_atomic_push vs ioremap_32.c
@ 2010-10-27 10:33 ` Peter Zijlstra
0 siblings, 0 replies; 24+ messages in thread
From: Peter Zijlstra @ 2010-10-27 10:33 UTC (permalink / raw)
To: Chris Wilson
Cc: Linus Torvalds, Andrew Morton, linux-kernel, linux-mm,
linux-arch, Christoph Hellwig
On Wed, 2010-10-27 at 11:27 +0100, Chris Wilson wrote:
> On Sat, 18 Sep 2010 17:53:26 +0200, Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
> > Next version of the kmap_atomic rework using Andrew's fancy CPP trickery to
> > avoid having to convert the whole tree at once.
> >
> > This is compile tested for i386-allmodconfig, frv, mips-sb1250-swarm,
> > powerpc-ppc6xx_defconfig, sparc32_defconfig, arm-omap3 (all with
> > HIGHEM=y).
>
> This break on x86, HIGHMEM=n:
>
> arch/x86/mm/iomap_32.c: In function a??kmap_atomic_prot_pfna??:
> arch/x86/mm/iomap_32.c:64: error: implicit declaration of function
> a??kmap_atomic_idx_pusha??
> arch/x86/mm/iomap_32.c: In function a??iounmap_atomica??:
> arch/x86/mm/iomap_32.c:101: error: implicit declaration of function
> a??kmap_atomic_idx_popa??
Christoph just complained about the same on IRC, the below seems to cure
things for i386-defconfig with CONFIG_HIGHMEM=n
---
Subject: mm,x86: fix kmap_atomic_push vs ioremap_32.c
It appears i386 uses kmap_atomic infrastructure regardless of
CONFIG_HIGHMEM which results in a compile error when highmem is
disabled.
Cure this by providing the needed few bits for both CONFIG_HIGHMEM and
CONFIG_X86_32.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
---
include/linux/highmem.h | 46 +++++++++++++++++++++++++---------------------
mm/highmem.c | 6 +++++-
2 files changed, 30 insertions(+), 22 deletions(-)
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 8a85ec1..102f76b 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -37,27 +37,6 @@ extern unsigned long totalhigh_pages;
void kmap_flush_unused(void);
-DECLARE_PER_CPU(int, __kmap_atomic_idx);
-
-static inline int kmap_atomic_idx_push(void)
-{
- int idx = __get_cpu_var(__kmap_atomic_idx)++;
-#ifdef CONFIG_DEBUG_HIGHMEM
- WARN_ON_ONCE(in_irq() && !irqs_disabled());
- BUG_ON(idx > KM_TYPE_NR);
-#endif
- return idx;
-}
-
-static inline int kmap_atomic_idx_pop(void)
-{
- int idx = --__get_cpu_var(__kmap_atomic_idx);
-#ifdef CONFIG_DEBUG_HIGHMEM
- BUG_ON(idx < 0);
-#endif
- return idx;
-}
-
#else /* CONFIG_HIGHMEM */
static inline unsigned int nr_free_highpages(void) { return 0; }
@@ -95,6 +74,31 @@ static inline void __kunmap_atomic(void *addr)
#endif /* CONFIG_HIGHMEM */
+#if defined(CONFIG_HIGHMEM) || defined(CONFIG_X86_32)
+
+DECLARE_PER_CPU(int, __kmap_atomic_idx);
+
+static inline int kmap_atomic_idx_push(void)
+{
+ int idx = __get_cpu_var(__kmap_atomic_idx)++;
+#ifdef CONFIG_DEBUG_HIGHMEM
+ WARN_ON_ONCE(in_irq() && !irqs_disabled());
+ BUG_ON(idx > KM_TYPE_NR);
+#endif
+ return idx;
+}
+
+static inline int kmap_atomic_idx_pop(void)
+{
+ int idx = --__get_cpu_var(__kmap_atomic_idx);
+#ifdef CONFIG_DEBUG_HIGHMEM
+ BUG_ON(idx < 0);
+#endif
+ return idx;
+}
+
+#endif
+
/*
* Make both: kmap_atomic(page, idx) and kmap_atomic(page) work.
*/
diff --git a/mm/highmem.c b/mm/highmem.c
index 781e754..693394d 100644
--- a/mm/highmem.c
+++ b/mm/highmem.c
@@ -29,6 +29,11 @@
#include <linux/kgdb.h>
#include <asm/tlbflush.h>
+
+#if defined(CONFIG_HIGHMEM) || defined(CONFIG_X86_32)
+DEFINE_PER_CPU(int, __kmap_atomic_idx);
+#endif
+
/*
* Virtual_count is not a pure "count".
* 0 means that it is not mapped, and has not been mapped
@@ -43,7 +48,6 @@ unsigned long totalhigh_pages __read_mostly;
EXPORT_SYMBOL(totalhigh_pages);
-DEFINE_PER_CPU(int, __kmap_atomic_idx);
EXPORT_PER_CPU_SYMBOL(__kmap_atomic_idx);
unsigned int nr_free_highpages (void)
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
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^ permalink raw reply related [flat|nested] 24+ messages in thread
* Re: [PATCH] mm,x86: fix kmap_atomic_push vs ioremap_32.c
2010-10-27 10:33 ` Peter Zijlstra
@ 2010-10-27 11:15 ` Chris Wilson
-1 siblings, 0 replies; 24+ messages in thread
From: Chris Wilson @ 2010-10-27 11:15 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Linus Torvalds, Andrew Morton, linux-kernel, linux-mm,
linux-arch, Christoph Hellwig
On Wed, 27 Oct 2010 12:33:58 +0200, Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
> Christoph just complained about the same on IRC, the below seems to cure
> things for i386-defconfig with CONFIG_HIGHMEM=n
Compiles and boots on the misbehaving box.
Thanks,
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
^ permalink raw reply [flat|nested] 24+ messages in thread
* Re: [PATCH] mm,x86: fix kmap_atomic_push vs ioremap_32.c
@ 2010-10-27 11:15 ` Chris Wilson
0 siblings, 0 replies; 24+ messages in thread
From: Chris Wilson @ 2010-10-27 11:15 UTC (permalink / raw)
To: Peter Zijlstra
Cc: Linus Torvalds, Andrew Morton, linux-kernel, linux-mm,
linux-arch, Christoph Hellwig
On Wed, 27 Oct 2010 12:33:58 +0200, Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
> Christoph just complained about the same on IRC, the below seems to cure
> things for i386-defconfig with CONFIG_HIGHMEM=n
Compiles and boots on the misbehaving box.
Thanks,
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
^ permalink raw reply [flat|nested] 24+ messages in thread
end of thread, other threads:[~2010-10-27 11:15 UTC | newest]
Thread overview: 24+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2010-09-18 15:53 [PATCH 0/5] mm, highmem: kmap_atomic rework -v3 Peter Zijlstra
2010-09-18 15:53 ` Peter Zijlstra
2010-09-18 15:53 ` [PATCH 1/5] mm: strictly nested kmap_atomic Peter Zijlstra
2010-09-18 15:53 ` Peter Zijlstra
2010-09-18 15:53 ` [PATCH 2/5] mm: stack based kmap_atomic Peter Zijlstra
2010-09-18 15:53 ` Peter Zijlstra
2010-09-19 17:01 ` Linus Torvalds
2010-09-19 17:01 ` Linus Torvalds
2010-09-20 9:31 ` Peter Zijlstra
2010-09-20 9:31 ` Peter Zijlstra
2010-09-18 15:53 ` [PATCH 3/5] mm: Remove pte_*map_nested() Peter Zijlstra
2010-09-18 15:53 ` Peter Zijlstra
2010-09-18 15:53 ` [PATCH 4/5] perf, x86: Fix up kmap_atomic type Peter Zijlstra
2010-09-18 15:53 ` Peter Zijlstra
2010-09-18 15:53 ` [PATCH 5/5] mm: highmem documentation Peter Zijlstra
2010-09-18 15:53 ` Peter Zijlstra
2010-10-27 10:27 ` [PATCH 0/5] mm, highmem: kmap_atomic rework -v3 Chris Wilson
2010-10-27 10:27 ` Chris Wilson
2010-10-27 10:27 ` Chris Wilson
2010-10-27 10:33 ` [PATCH] mm,x86: fix kmap_atomic_push vs ioremap_32.c Peter Zijlstra
2010-10-27 10:33 ` Peter Zijlstra
2010-10-27 10:33 ` Peter Zijlstra
2010-10-27 11:15 ` Chris Wilson
2010-10-27 11:15 ` Chris Wilson
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