* [PATCHv5 00/11] CONFIG_DEBUG_VIRTUAL for arm64
@ 2016-12-06 23:50 Laura Abbott
2016-12-06 23:50 ` [PATCHv5 01/11] lib/Kconfig.debug: Add ARCH_HAS_DEBUG_VIRTUAL Laura Abbott
` (12 more replies)
0 siblings, 13 replies; 35+ messages in thread
From: Laura Abbott @ 2016-12-06 23:50 UTC (permalink / raw)
To: Mark Rutland, Ard Biesheuvel, Will Deacon, Catalin Marinas
Cc: Laura Abbott, Thomas Gleixner, Ingo Molnar, H. Peter Anvin, x86,
linux-kernel, linux-mm, Andrew Morton, Marek Szyprowski,
Joonsoo Kim, linux-arm-kernel, Christoffer Dall, Marc Zyngier,
Lorenzo Pieralisi, xen-devel, Boris Ostrovsky, David Vrabel,
Juergen Gross, Eric Biederman, kexec, Alexander Potapenko,
Dmitry Vyukov, kasan-dev, Andrey Ryabinin, Kees Cook
Hi,
This is v5 of the series to add CONFIG_DEBUG_VIRTUAL for arm64. This mostly
contains minor fixups including adding a few extra headers around and splitting
things out into a few more sub-patches.
With a few more acks I think this should be ready to go. More testing is
always appreciated though.
Thanks,
Laura
Laura Abbott (11):
lib/Kconfig.debug: Add ARCH_HAS_DEBUG_VIRTUAL
mm/cma: Cleanup highmem check
arm64: Move some macros under #ifndef __ASSEMBLY__
arm64: Add cast for virt_to_pfn
mm: Introduce lm_alias
arm64: Use __pa_symbol for kernel symbols
drivers: firmware: psci: Use __pa_symbol for kernel symbol
kexec: Switch to __pa_symbol
mm/kasan: Switch to using __pa_symbol and lm_alias
mm/usercopy: Switch to using lm_alias
arm64: Add support for CONFIG_DEBUG_VIRTUAL
arch/arm64/Kconfig | 1 +
arch/arm64/include/asm/kvm_mmu.h | 4 +-
arch/arm64/include/asm/memory.h | 66 +++++++++++++++++++++----------
arch/arm64/include/asm/mmu_context.h | 6 +--
arch/arm64/include/asm/pgtable.h | 2 +-
arch/arm64/kernel/acpi_parking_protocol.c | 3 +-
arch/arm64/kernel/cpu-reset.h | 2 +-
arch/arm64/kernel/cpufeature.c | 3 +-
arch/arm64/kernel/hibernate.c | 20 +++-------
arch/arm64/kernel/insn.c | 2 +-
arch/arm64/kernel/psci.c | 3 +-
arch/arm64/kernel/setup.c | 9 +++--
arch/arm64/kernel/smp_spin_table.c | 3 +-
arch/arm64/kernel/vdso.c | 8 +++-
arch/arm64/mm/Makefile | 2 +
arch/arm64/mm/init.c | 12 +++---
arch/arm64/mm/kasan_init.c | 22 +++++++----
arch/arm64/mm/mmu.c | 33 ++++++++++------
arch/arm64/mm/physaddr.c | 30 ++++++++++++++
arch/x86/Kconfig | 1 +
drivers/firmware/psci.c | 2 +-
include/linux/mm.h | 4 ++
kernel/kexec_core.c | 2 +-
lib/Kconfig.debug | 5 ++-
mm/cma.c | 15 +++----
mm/kasan/kasan_init.c | 15 +++----
mm/usercopy.c | 4 +-
27 files changed, 180 insertions(+), 99 deletions(-)
create mode 100644 arch/arm64/mm/physaddr.c
--
2.7.4
^ permalink raw reply [flat|nested] 35+ messages in thread
* [PATCHv5 01/11] lib/Kconfig.debug: Add ARCH_HAS_DEBUG_VIRTUAL
2016-12-06 23:50 [PATCHv5 00/11] CONFIG_DEBUG_VIRTUAL for arm64 Laura Abbott
@ 2016-12-06 23:50 ` Laura Abbott
2016-12-06 23:50 ` [PATCHv5 02/11] mm/cma: Cleanup highmem check Laura Abbott
` (11 subsequent siblings)
12 siblings, 0 replies; 35+ messages in thread
From: Laura Abbott @ 2016-12-06 23:50 UTC (permalink / raw)
To: Thomas Gleixner, Ingo Molnar, H. Peter Anvin, Mark Rutland,
Ard Biesheuvel, Will Deacon, Catalin Marinas
Cc: Laura Abbott, x86, linux-kernel, linux-mm, Andrew Morton,
Marek Szyprowski, Joonsoo Kim, linux-arm-kernel
DEBUG_VIRTUAL currently depends on DEBUG_KERNEL && X86. arm64 is getting
the same support. Rather than add a list of architectures, switch this
to ARCH_HAS_DEBUG_VIRTUAL and let architectures select it as
appropriate.
Acked-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Suggested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Laura Abbott <labbott@redhat.com>
---
v5: No changes
---
arch/x86/Kconfig | 1 +
lib/Kconfig.debug | 5 ++++-
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index bada636..f533321 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -23,6 +23,7 @@ config X86
select ARCH_CLOCKSOURCE_DATA
select ARCH_DISCARD_MEMBLOCK
select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI
+ select ARCH_HAS_DEBUG_VIRTUAL
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_HAS_ELF_RANDOMIZE
select ARCH_HAS_FAST_MULTIPLIER
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index a6c8db1..be65e04 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -603,9 +603,12 @@ config DEBUG_VM_PGFLAGS
If unsure, say N.
+config ARCH_HAS_DEBUG_VIRTUAL
+ bool
+
config DEBUG_VIRTUAL
bool "Debug VM translations"
- depends on DEBUG_KERNEL && X86
+ depends on DEBUG_KERNEL && ARCH_HAS_DEBUG_VIRTUAL
help
Enable some costly sanity checks in virtual to page code. This can
catch mistakes with virt_to_page() and friends.
--
2.7.4
^ permalink raw reply related [flat|nested] 35+ messages in thread
* [PATCHv5 02/11] mm/cma: Cleanup highmem check
2016-12-06 23:50 [PATCHv5 00/11] CONFIG_DEBUG_VIRTUAL for arm64 Laura Abbott
2016-12-06 23:50 ` [PATCHv5 01/11] lib/Kconfig.debug: Add ARCH_HAS_DEBUG_VIRTUAL Laura Abbott
@ 2016-12-06 23:50 ` Laura Abbott
2016-12-06 23:50 ` [PATCHv5 03/11] arm64: Move some macros under #ifndef __ASSEMBLY__ Laura Abbott
` (10 subsequent siblings)
12 siblings, 0 replies; 35+ messages in thread
From: Laura Abbott @ 2016-12-06 23:50 UTC (permalink / raw)
To: Marek Szyprowski, Joonsoo Kim, Mark Rutland, Ard Biesheuvel,
Will Deacon, Catalin Marinas
Cc: Laura Abbott, Thomas Gleixner, Ingo Molnar, H. Peter Anvin, x86,
linux-kernel, linux-mm, Andrew Morton, linux-arm-kernel
6b101e2a3ce4 ("mm/CMA: fix boot regression due to physical address of
high_memory") added checks to use __pa_nodebug on x86 since
CONFIG_DEBUG_VIRTUAL complains about high_memory not being linearlly
mapped. arm64 is now getting support for CONFIG_DEBUG_VIRTUAL as well.
Rather than add an explosion of arches to the #ifdef, switch to an
alternate method to calculate the physical start of highmem using
the page before highmem starts. This avoids the need for the #ifdef and
extra __pa_nodebug calls.
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Laura Abbott <labbott@redhat.com>
---
v5: No changes
---
mm/cma.c | 15 +++++----------
1 file changed, 5 insertions(+), 10 deletions(-)
diff --git a/mm/cma.c b/mm/cma.c
index c960459..94b3460 100644
--- a/mm/cma.c
+++ b/mm/cma.c
@@ -235,18 +235,13 @@ int __init cma_declare_contiguous(phys_addr_t base,
phys_addr_t highmem_start;
int ret = 0;
-#ifdef CONFIG_X86
/*
- * high_memory isn't direct mapped memory so retrieving its physical
- * address isn't appropriate. But it would be useful to check the
- * physical address of the highmem boundary so it's justifiable to get
- * the physical address from it. On x86 there is a validation check for
- * this case, so the following workaround is needed to avoid it.
+ * We can't use __pa(high_memory) directly, since high_memory
+ * isn't a valid direct map VA, and DEBUG_VIRTUAL will (validly)
+ * complain. Find the boundary by adding one to the last valid
+ * address.
*/
- highmem_start = __pa_nodebug(high_memory);
-#else
- highmem_start = __pa(high_memory);
-#endif
+ highmem_start = __pa(high_memory - 1) + 1;
pr_debug("%s(size %pa, base %pa, limit %pa alignment %pa)\n",
__func__, &size, &base, &limit, &alignment);
--
2.7.4
^ permalink raw reply related [flat|nested] 35+ messages in thread
* [PATCHv5 03/11] arm64: Move some macros under #ifndef __ASSEMBLY__
2016-12-06 23:50 [PATCHv5 00/11] CONFIG_DEBUG_VIRTUAL for arm64 Laura Abbott
2016-12-06 23:50 ` [PATCHv5 01/11] lib/Kconfig.debug: Add ARCH_HAS_DEBUG_VIRTUAL Laura Abbott
2016-12-06 23:50 ` [PATCHv5 02/11] mm/cma: Cleanup highmem check Laura Abbott
@ 2016-12-06 23:50 ` Laura Abbott
2016-12-06 23:50 ` [PATCHv5 04/11] arm64: Add cast for virt_to_pfn Laura Abbott
` (9 subsequent siblings)
12 siblings, 0 replies; 35+ messages in thread
From: Laura Abbott @ 2016-12-06 23:50 UTC (permalink / raw)
To: Mark Rutland, Ard Biesheuvel, Will Deacon, Catalin Marinas
Cc: Laura Abbott, Thomas Gleixner, Ingo Molnar, H. Peter Anvin, x86,
linux-kernel, linux-mm, Andrew Morton, Marek Szyprowski,
Joonsoo Kim, linux-arm-kernel
Several macros for various x_to_y exist outside the bounds of an
__ASSEMBLY__ guard. Move them in preparation for support for
CONFIG_DEBUG_VIRTUAL.
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Laura Abbott <labbott@redhat.com>
---
v5: No changes
---
arch/arm64/include/asm/memory.h | 38 +++++++++++++++++++-------------------
1 file changed, 19 insertions(+), 19 deletions(-)
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index b71086d..b4d2b32 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -102,25 +102,6 @@
#endif
/*
- * Physical vs virtual RAM address space conversion. These are
- * private definitions which should NOT be used outside memory.h
- * files. Use virt_to_phys/phys_to_virt/__pa/__va instead.
- */
-#define __virt_to_phys(x) ({ \
- phys_addr_t __x = (phys_addr_t)(x); \
- __x & BIT(VA_BITS - 1) ? (__x & ~PAGE_OFFSET) + PHYS_OFFSET : \
- (__x - kimage_voffset); })
-
-#define __phys_to_virt(x) ((unsigned long)((x) - PHYS_OFFSET) | PAGE_OFFSET)
-#define __phys_to_kimg(x) ((unsigned long)((x) + kimage_voffset))
-
-/*
- * Convert a page to/from a physical address
- */
-#define page_to_phys(page) (__pfn_to_phys(page_to_pfn(page)))
-#define phys_to_page(phys) (pfn_to_page(__phys_to_pfn(phys)))
-
-/*
* Memory types available.
*/
#define MT_DEVICE_nGnRnE 0
@@ -182,6 +163,25 @@ extern u64 kimage_voffset;
#define PHYS_PFN_OFFSET (PHYS_OFFSET >> PAGE_SHIFT)
/*
+ * Physical vs virtual RAM address space conversion. These are
+ * private definitions which should NOT be used outside memory.h
+ * files. Use virt_to_phys/phys_to_virt/__pa/__va instead.
+ */
+#define __virt_to_phys(x) ({ \
+ phys_addr_t __x = (phys_addr_t)(x); \
+ __x & BIT(VA_BITS - 1) ? (__x & ~PAGE_OFFSET) + PHYS_OFFSET : \
+ (__x - kimage_voffset); })
+
+#define __phys_to_virt(x) ((unsigned long)((x) - PHYS_OFFSET) | PAGE_OFFSET)
+#define __phys_to_kimg(x) ((unsigned long)((x) + kimage_voffset))
+
+/*
+ * Convert a page to/from a physical address
+ */
+#define page_to_phys(page) (__pfn_to_phys(page_to_pfn(page)))
+#define phys_to_page(phys) (pfn_to_page(__phys_to_pfn(phys)))
+
+/*
* Note: Drivers should NOT use these. They are the wrong
* translation for translating DMA addresses. Use the driver
* DMA support - see dma-mapping.h.
--
2.7.4
^ permalink raw reply related [flat|nested] 35+ messages in thread
* [PATCHv5 04/11] arm64: Add cast for virt_to_pfn
2016-12-06 23:50 [PATCHv5 00/11] CONFIG_DEBUG_VIRTUAL for arm64 Laura Abbott
` (2 preceding siblings ...)
2016-12-06 23:50 ` [PATCHv5 03/11] arm64: Move some macros under #ifndef __ASSEMBLY__ Laura Abbott
@ 2016-12-06 23:50 ` Laura Abbott
2016-12-06 23:50 ` [PATCHv5 05/11] mm: Introduce lm_alias Laura Abbott
` (8 subsequent siblings)
12 siblings, 0 replies; 35+ messages in thread
From: Laura Abbott @ 2016-12-06 23:50 UTC (permalink / raw)
To: Mark Rutland, Ard Biesheuvel, Will Deacon, Catalin Marinas
Cc: Laura Abbott, Thomas Gleixner, Ingo Molnar, H. Peter Anvin, x86,
linux-kernel, linux-mm, Andrew Morton, Marek Szyprowski,
Joonsoo Kim, linux-arm-kernel
virt_to_pfn lacks a cast at the top level. Don't rely on __virt_to_phys
and explicitly cast to unsigned long.
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Laura Abbott <labbott@redhat.com>
---
v5: No changes
---
arch/arm64/include/asm/memory.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index b4d2b32..d773e2c 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -204,7 +204,7 @@ static inline void *phys_to_virt(phys_addr_t x)
#define __pa(x) __virt_to_phys((unsigned long)(x))
#define __va(x) ((void *)__phys_to_virt((phys_addr_t)(x)))
#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
-#define virt_to_pfn(x) __phys_to_pfn(__virt_to_phys(x))
+#define virt_to_pfn(x) __phys_to_pfn(__virt_to_phys((unsigned long)(x)))
/*
* virt_to_page(k) convert a _valid_ virtual address to struct page *
--
2.7.4
^ permalink raw reply related [flat|nested] 35+ messages in thread
* [PATCHv5 05/11] mm: Introduce lm_alias
2016-12-06 23:50 [PATCHv5 00/11] CONFIG_DEBUG_VIRTUAL for arm64 Laura Abbott
` (3 preceding siblings ...)
2016-12-06 23:50 ` [PATCHv5 04/11] arm64: Add cast for virt_to_pfn Laura Abbott
@ 2016-12-06 23:50 ` Laura Abbott
2016-12-06 23:50 ` [PATCHv5 06/11] arm64: Use __pa_symbol for kernel symbols Laura Abbott
` (7 subsequent siblings)
12 siblings, 0 replies; 35+ messages in thread
From: Laura Abbott @ 2016-12-06 23:50 UTC (permalink / raw)
To: Mark Rutland, Ard Biesheuvel, Will Deacon, Catalin Marinas,
Christoffer Dall, Marc Zyngier, Lorenzo Pieralisi
Cc: Laura Abbott, Thomas Gleixner, Ingo Molnar, H. Peter Anvin, x86,
linux-kernel, linux-mm, Andrew Morton, Marek Szyprowski,
Joonsoo Kim, linux-arm-kernel
Certain architectures may have the kernel image mapped separately to
alias the linear map. Introduce a macro lm_alias to translate a kernel
image symbol into its linear alias. This is used in part with work to
add CONFIG_DEBUG_VIRTUAL support for arm64.
Signed-off-by: Laura Abbott <labbott@redhat.com>
---
v5: Split off from the arm64 conversion to __pa_symbol
---
include/linux/mm.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index a92c8d7..88556b8 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -76,6 +76,10 @@ extern int mmap_rnd_compat_bits __read_mostly;
#define page_to_virt(x) __va(PFN_PHYS(page_to_pfn(x)))
#endif
+#ifndef lm_alias
+#define lm_alias(x) __va(__pa_symbol(x))
+#endif
+
/*
* To prevent common memory management code establishing
* a zero page mapping on a read fault.
--
2.7.4
^ permalink raw reply related [flat|nested] 35+ messages in thread
* [PATCHv5 06/11] arm64: Use __pa_symbol for kernel symbols
2016-12-06 23:50 [PATCHv5 00/11] CONFIG_DEBUG_VIRTUAL for arm64 Laura Abbott
` (4 preceding siblings ...)
2016-12-06 23:50 ` [PATCHv5 05/11] mm: Introduce lm_alias Laura Abbott
@ 2016-12-06 23:50 ` Laura Abbott
2016-12-13 12:31 ` Mark Rutland
2016-12-06 23:50 ` [PATCHv5 07/11] drivers: firmware: psci: Use __pa_symbol for kernel symbol Laura Abbott
` (6 subsequent siblings)
12 siblings, 1 reply; 35+ messages in thread
From: Laura Abbott @ 2016-12-06 23:50 UTC (permalink / raw)
To: Mark Rutland, Ard Biesheuvel, Will Deacon, Catalin Marinas,
Christoffer Dall, Marc Zyngier, Lorenzo Pieralisi
Cc: Laura Abbott, Thomas Gleixner, Ingo Molnar, H. Peter Anvin, x86,
linux-kernel, linux-mm, Andrew Morton, Marek Szyprowski,
Joonsoo Kim, linux-arm-kernel
__pa_symbol is technically the marcro that should be used for kernel
symbols. Switch to this as a pre-requisite for DEBUG_VIRTUAL which
will do bounds checking.
Tested-by: James Morse <james.morse@arm.com>
Signed-off-by: Laura Abbott <labbott@redhat.com>
---
v5: #include <linux/mm.h> more places, drop arm64 specific lm_alias, correct
hibernation support from James Morse
---
arch/arm64/include/asm/kvm_mmu.h | 4 ++--
arch/arm64/include/asm/memory.h | 1 +
arch/arm64/include/asm/mmu_context.h | 6 +++---
arch/arm64/include/asm/pgtable.h | 2 +-
arch/arm64/kernel/acpi_parking_protocol.c | 3 ++-
arch/arm64/kernel/cpu-reset.h | 2 +-
arch/arm64/kernel/cpufeature.c | 3 ++-
arch/arm64/kernel/hibernate.c | 20 +++++--------------
arch/arm64/kernel/insn.c | 2 +-
arch/arm64/kernel/psci.c | 3 ++-
arch/arm64/kernel/setup.c | 9 +++++----
arch/arm64/kernel/smp_spin_table.c | 3 ++-
arch/arm64/kernel/vdso.c | 8 ++++++--
arch/arm64/mm/init.c | 12 ++++++-----
arch/arm64/mm/kasan_init.c | 22 ++++++++++++++-------
arch/arm64/mm/mmu.c | 33 ++++++++++++++++++++-----------
16 files changed, 76 insertions(+), 57 deletions(-)
diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index 6f72fe8..55772c1 100644
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h
@@ -47,7 +47,7 @@
* If the page is in the bottom half, we have to use the top half. If
* the page is in the top half, we have to use the bottom half:
*
- * T = __virt_to_phys(__hyp_idmap_text_start)
+ * T = __pa_symbol(__hyp_idmap_text_start)
* if (T & BIT(VA_BITS - 1))
* HYP_VA_MIN = 0 //idmap in upper half
* else
@@ -271,7 +271,7 @@ static inline void __kvm_flush_dcache_pud(pud_t pud)
kvm_flush_dcache_to_poc(page_address(page), PUD_SIZE);
}
-#define kvm_virt_to_phys(x) __virt_to_phys((unsigned long)(x))
+#define kvm_virt_to_phys(x) __pa_symbol(x)
void kvm_set_way_flush(struct kvm_vcpu *vcpu);
void kvm_toggle_cache(struct kvm_vcpu *vcpu, bool was_enabled);
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index d773e2c..041bce28 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -205,6 +205,7 @@ static inline void *phys_to_virt(phys_addr_t x)
#define __va(x) ((void *)__phys_to_virt((phys_addr_t)(x)))
#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
#define virt_to_pfn(x) __phys_to_pfn(__virt_to_phys((unsigned long)(x)))
+#define sym_to_pfn(x) __phys_to_pfn(__pa_symbol(x))
/*
* virt_to_page(k) convert a _valid_ virtual address to struct page *
diff --git a/arch/arm64/include/asm/mmu_context.h b/arch/arm64/include/asm/mmu_context.h
index a501853..ea0f969 100644
--- a/arch/arm64/include/asm/mmu_context.h
+++ b/arch/arm64/include/asm/mmu_context.h
@@ -44,7 +44,7 @@ static inline void contextidr_thread_switch(struct task_struct *next)
*/
static inline void cpu_set_reserved_ttbr0(void)
{
- unsigned long ttbr = virt_to_phys(empty_zero_page);
+ unsigned long ttbr = __pa_symbol(empty_zero_page);
write_sysreg(ttbr, ttbr0_el1);
isb();
@@ -113,7 +113,7 @@ static inline void cpu_install_idmap(void)
local_flush_tlb_all();
cpu_set_idmap_tcr_t0sz();
- cpu_switch_mm(idmap_pg_dir, &init_mm);
+ cpu_switch_mm(lm_alias(idmap_pg_dir), &init_mm);
}
/*
@@ -128,7 +128,7 @@ static inline void cpu_replace_ttbr1(pgd_t *pgd)
phys_addr_t pgd_phys = virt_to_phys(pgd);
- replace_phys = (void *)virt_to_phys(idmap_cpu_replace_ttbr1);
+ replace_phys = (void *)__pa_symbol(idmap_cpu_replace_ttbr1);
cpu_install_idmap();
replace_phys(pgd_phys);
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index ffbb9a5..090134c 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -52,7 +52,7 @@ extern void __pgd_error(const char *file, int line, unsigned long val);
* for zero-mapped memory areas etc..
*/
extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
-#define ZERO_PAGE(vaddr) pfn_to_page(PHYS_PFN(__pa(empty_zero_page)))
+#define ZERO_PAGE(vaddr) phys_to_page(__pa_symbol(empty_zero_page))
#define pte_ERROR(pte) __pte_error(__FILE__, __LINE__, pte_val(pte))
diff --git a/arch/arm64/kernel/acpi_parking_protocol.c b/arch/arm64/kernel/acpi_parking_protocol.c
index a32b401..ca880ce 100644
--- a/arch/arm64/kernel/acpi_parking_protocol.c
+++ b/arch/arm64/kernel/acpi_parking_protocol.c
@@ -18,6 +18,7 @@
*/
#include <linux/acpi.h>
#include <linux/types.h>
+#include <linux/mm.h>
#include <asm/cpu_ops.h>
@@ -109,7 +110,7 @@ static int acpi_parking_protocol_cpu_boot(unsigned int cpu)
* that read this address need to convert this address to the
* Boot-Loader's endianness before jumping.
*/
- writeq_relaxed(__pa(secondary_entry), &mailbox->entry_point);
+ writeq_relaxed(__pa_symbol(secondary_entry), &mailbox->entry_point);
writel_relaxed(cpu_entry->gic_cpu_id, &mailbox->cpu_id);
arch_send_wakeup_ipi_mask(cpumask_of(cpu));
diff --git a/arch/arm64/kernel/cpu-reset.h b/arch/arm64/kernel/cpu-reset.h
index d4e9ecb..6c2b1b4 100644
--- a/arch/arm64/kernel/cpu-reset.h
+++ b/arch/arm64/kernel/cpu-reset.h
@@ -24,7 +24,7 @@ static inline void __noreturn cpu_soft_restart(unsigned long el2_switch,
el2_switch = el2_switch && !is_kernel_in_hyp_mode() &&
is_hyp_mode_available();
- restart = (void *)virt_to_phys(__cpu_soft_restart);
+ restart = (void *)__pa_symbol(__cpu_soft_restart);
cpu_install_idmap();
restart(el2_switch, entry, arg0, arg1, arg2);
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index c02504e..26b54aa 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -23,6 +23,7 @@
#include <linux/sort.h>
#include <linux/stop_machine.h>
#include <linux/types.h>
+#include <linux/mm.h>
#include <asm/cpu.h>
#include <asm/cpufeature.h>
#include <asm/cpu_ops.h>
@@ -736,7 +737,7 @@ static bool runs_at_el2(const struct arm64_cpu_capabilities *entry, int __unused
static bool hyp_offset_low(const struct arm64_cpu_capabilities *entry,
int __unused)
{
- phys_addr_t idmap_addr = virt_to_phys(__hyp_idmap_text_start);
+ phys_addr_t idmap_addr = __pa_symbol(__hyp_idmap_text_start);
/*
* Activate the lower HYP offset only if:
diff --git a/arch/arm64/kernel/hibernate.c b/arch/arm64/kernel/hibernate.c
index d55a7b0..8bed26a 100644
--- a/arch/arm64/kernel/hibernate.c
+++ b/arch/arm64/kernel/hibernate.c
@@ -50,9 +50,6 @@
*/
extern int in_suspend;
-/* Find a symbols alias in the linear map */
-#define LMADDR(x) phys_to_virt(virt_to_phys(x))
-
/* Do we need to reset el2? */
#define el2_reset_needed() (is_hyp_mode_available() && !is_kernel_in_hyp_mode())
@@ -102,8 +99,8 @@ static inline void arch_hdr_invariants(struct arch_hibernate_hdr_invariants *i)
int pfn_is_nosave(unsigned long pfn)
{
- unsigned long nosave_begin_pfn = virt_to_pfn(&__nosave_begin);
- unsigned long nosave_end_pfn = virt_to_pfn(&__nosave_end - 1);
+ unsigned long nosave_begin_pfn = sym_to_pfn(&__nosave_begin);
+ unsigned long nosave_end_pfn = sym_to_pfn(&__nosave_end - 1);
return (pfn >= nosave_begin_pfn) && (pfn <= nosave_end_pfn);
}
@@ -125,12 +122,12 @@ int arch_hibernation_header_save(void *addr, unsigned int max_size)
return -EOVERFLOW;
arch_hdr_invariants(&hdr->invariants);
- hdr->ttbr1_el1 = virt_to_phys(swapper_pg_dir);
+ hdr->ttbr1_el1 = __pa_symbol(swapper_pg_dir);
hdr->reenter_kernel = _cpu_resume;
/* We can't use __hyp_get_vectors() because kvm may still be loaded */
if (el2_reset_needed())
- hdr->__hyp_stub_vectors = virt_to_phys(__hyp_stub_vectors);
+ hdr->__hyp_stub_vectors = __pa_symbol(__hyp_stub_vectors);
else
hdr->__hyp_stub_vectors = 0;
@@ -460,7 +457,6 @@ int swsusp_arch_resume(void)
void *zero_page;
size_t exit_size;
pgd_t *tmp_pg_dir;
- void *lm_restore_pblist;
phys_addr_t phys_hibernate_exit;
void __noreturn (*hibernate_exit)(phys_addr_t, phys_addr_t, void *,
void *, phys_addr_t, phys_addr_t);
@@ -481,12 +477,6 @@ int swsusp_arch_resume(void)
goto out;
/*
- * Since we only copied the linear map, we need to find restore_pblist's
- * linear map address.
- */
- lm_restore_pblist = LMADDR(restore_pblist);
-
- /*
* We need a zero page that is zero before & after resume in order to
* to break before make on the ttbr1 page tables.
*/
@@ -537,7 +527,7 @@ int swsusp_arch_resume(void)
}
hibernate_exit(virt_to_phys(tmp_pg_dir), resume_hdr.ttbr1_el1,
- resume_hdr.reenter_kernel, lm_restore_pblist,
+ resume_hdr.reenter_kernel, restore_pblist,
resume_hdr.__hyp_stub_vectors, virt_to_phys(zero_page));
out:
diff --git a/arch/arm64/kernel/insn.c b/arch/arm64/kernel/insn.c
index 6f2ac4f..f607b38 100644
--- a/arch/arm64/kernel/insn.c
+++ b/arch/arm64/kernel/insn.c
@@ -97,7 +97,7 @@ static void __kprobes *patch_map(void *addr, int fixmap)
if (module && IS_ENABLED(CONFIG_DEBUG_SET_MODULE_RONX))
page = vmalloc_to_page(addr);
else if (!module)
- page = pfn_to_page(PHYS_PFN(__pa(addr)));
+ page = phys_to_page(__pa_symbol(addr));
else
return addr;
diff --git a/arch/arm64/kernel/psci.c b/arch/arm64/kernel/psci.c
index 42816be..e8edbf1 100644
--- a/arch/arm64/kernel/psci.c
+++ b/arch/arm64/kernel/psci.c
@@ -20,6 +20,7 @@
#include <linux/smp.h>
#include <linux/delay.h>
#include <linux/psci.h>
+#include <linux/mm.h>
#include <uapi/linux/psci.h>
@@ -45,7 +46,7 @@ static int __init cpu_psci_cpu_prepare(unsigned int cpu)
static int cpu_psci_cpu_boot(unsigned int cpu)
{
- int err = psci_ops.cpu_on(cpu_logical_map(cpu), __pa(secondary_entry));
+ int err = psci_ops.cpu_on(cpu_logical_map(cpu), __pa_symbol(secondary_entry));
if (err)
pr_err("failed to boot CPU%d (%d)\n", cpu, err);
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index f534f49..bcedfa0 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -42,6 +42,7 @@
#include <linux/of_fdt.h>
#include <linux/efi.h>
#include <linux/psci.h>
+#include <linux/mm.h>
#include <asm/acpi.h>
#include <asm/fixmap.h>
@@ -199,10 +200,10 @@ static void __init request_standard_resources(void)
struct memblock_region *region;
struct resource *res;
- kernel_code.start = virt_to_phys(_text);
- kernel_code.end = virt_to_phys(__init_begin - 1);
- kernel_data.start = virt_to_phys(_sdata);
- kernel_data.end = virt_to_phys(_end - 1);
+ kernel_code.start = __pa_symbol(_text);
+ kernel_code.end = __pa_symbol(__init_begin - 1);
+ kernel_data.start = __pa_symbol(_sdata);
+ kernel_data.end = __pa_symbol(_end - 1);
for_each_memblock(memory, region) {
res = alloc_bootmem_low(sizeof(*res));
diff --git a/arch/arm64/kernel/smp_spin_table.c b/arch/arm64/kernel/smp_spin_table.c
index 9a00eee..9303465 100644
--- a/arch/arm64/kernel/smp_spin_table.c
+++ b/arch/arm64/kernel/smp_spin_table.c
@@ -21,6 +21,7 @@
#include <linux/of.h>
#include <linux/smp.h>
#include <linux/types.h>
+#include <linux/mm.h>
#include <asm/cacheflush.h>
#include <asm/cpu_ops.h>
@@ -98,7 +99,7 @@ static int smp_spin_table_cpu_prepare(unsigned int cpu)
* boot-loader's endianess before jumping. This is mandated by
* the boot protocol.
*/
- writeq_relaxed(__pa(secondary_holding_pen), release_addr);
+ writeq_relaxed(__pa_symbol(secondary_holding_pen), release_addr);
__flush_dcache_area((__force void *)release_addr,
sizeof(*release_addr));
diff --git a/arch/arm64/kernel/vdso.c b/arch/arm64/kernel/vdso.c
index a2c2478..41b6e31 100644
--- a/arch/arm64/kernel/vdso.c
+++ b/arch/arm64/kernel/vdso.c
@@ -123,6 +123,7 @@ static int __init vdso_init(void)
{
int i;
struct page **vdso_pagelist;
+ unsigned long pfn;
if (memcmp(&vdso_start, "\177ELF", 4)) {
pr_err("vDSO is not a valid ELF object!\n");
@@ -140,11 +141,14 @@ static int __init vdso_init(void)
return -ENOMEM;
/* Grab the vDSO data page. */
- vdso_pagelist[0] = pfn_to_page(PHYS_PFN(__pa(vdso_data)));
+ vdso_pagelist[0] = phys_to_page(__pa_symbol(vdso_data));
+
/* Grab the vDSO code pages. */
+ pfn = sym_to_pfn(&vdso_start);
+
for (i = 0; i < vdso_pages; i++)
- vdso_pagelist[i + 1] = pfn_to_page(PHYS_PFN(__pa(&vdso_start)) + i);
+ vdso_pagelist[i + 1] = pfn_to_page(pfn + i);
vdso_spec[0].pages = &vdso_pagelist[0];
vdso_spec[1].pages = &vdso_pagelist[1];
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 212c4d1..8af2ad6 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -36,6 +36,7 @@
#include <linux/efi.h>
#include <linux/swiotlb.h>
#include <linux/vmalloc.h>
+#include <linux/mm.h>
#include <asm/boot.h>
#include <asm/fixmap.h>
@@ -209,8 +210,8 @@ void __init arm64_memblock_init(void)
* linear mapping. Take care not to clip the kernel which may be
* high in memory.
*/
- memblock_remove(max_t(u64, memstart_addr + linear_region_size, __pa(_end)),
- ULLONG_MAX);
+ memblock_remove(max_t(u64, memstart_addr + linear_region_size,
+ __pa_symbol(_end)), ULLONG_MAX);
if (memstart_addr + linear_region_size < memblock_end_of_DRAM()) {
/* ensure that memstart_addr remains sufficiently aligned */
memstart_addr = round_up(memblock_end_of_DRAM() - linear_region_size,
@@ -225,7 +226,7 @@ void __init arm64_memblock_init(void)
*/
if (memory_limit != (phys_addr_t)ULLONG_MAX) {
memblock_mem_limit_remove_map(memory_limit);
- memblock_add(__pa(_text), (u64)(_end - _text));
+ memblock_add(__pa_symbol(_text), (u64)(_end - _text));
}
if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && initrd_start) {
@@ -278,7 +279,7 @@ void __init arm64_memblock_init(void)
* Register the kernel text, kernel data, initrd, and initial
* pagetables with memblock.
*/
- memblock_reserve(__pa(_text), _end - _text);
+ memblock_reserve(__pa_symbol(_text), _end - _text);
#ifdef CONFIG_BLK_DEV_INITRD
if (initrd_start) {
memblock_reserve(initrd_start, initrd_end - initrd_start);
@@ -483,7 +484,8 @@ void __init mem_init(void)
void free_initmem(void)
{
- free_reserved_area(__va(__pa(__init_begin)), __va(__pa(__init_end)),
+ free_reserved_area(lm_alias(__init_begin),
+ lm_alias(__init_end),
0, "unused kernel");
/*
* Unmap the __init region but leave the VM area in place. This
diff --git a/arch/arm64/mm/kasan_init.c b/arch/arm64/mm/kasan_init.c
index 757009d..201d918 100644
--- a/arch/arm64/mm/kasan_init.c
+++ b/arch/arm64/mm/kasan_init.c
@@ -15,6 +15,7 @@
#include <linux/kernel.h>
#include <linux/memblock.h>
#include <linux/start_kernel.h>
+#include <linux/mm.h>
#include <asm/mmu_context.h>
#include <asm/kernel-pgtable.h>
@@ -26,6 +27,13 @@
static pgd_t tmp_pg_dir[PTRS_PER_PGD] __initdata __aligned(PGD_SIZE);
+/*
+ * The p*d_populate functions call virt_to_phys implicitly so they can't be used
+ * directly on kernel symbols (bm_p*d). All the early functions are called too
+ * early to use lm_alias so __p*d_populate functions must be used to populate
+ * with the physical address from __pa_symbol.
+ */
+
static void __init kasan_early_pte_populate(pmd_t *pmd, unsigned long addr,
unsigned long end)
{
@@ -33,12 +41,12 @@ static void __init kasan_early_pte_populate(pmd_t *pmd, unsigned long addr,
unsigned long next;
if (pmd_none(*pmd))
- pmd_populate_kernel(&init_mm, pmd, kasan_zero_pte);
+ __pmd_populate(pmd, __pa_symbol(kasan_zero_pte), PMD_TYPE_TABLE);
pte = pte_offset_kimg(pmd, addr);
do {
next = addr + PAGE_SIZE;
- set_pte(pte, pfn_pte(virt_to_pfn(kasan_zero_page),
+ set_pte(pte, pfn_pte(sym_to_pfn(kasan_zero_page),
PAGE_KERNEL));
} while (pte++, addr = next, addr != end && pte_none(*pte));
}
@@ -51,7 +59,7 @@ static void __init kasan_early_pmd_populate(pud_t *pud,
unsigned long next;
if (pud_none(*pud))
- pud_populate(&init_mm, pud, kasan_zero_pmd);
+ __pud_populate(pud, __pa_symbol(kasan_zero_pmd), PMD_TYPE_TABLE);
pmd = pmd_offset_kimg(pud, addr);
do {
@@ -68,7 +76,7 @@ static void __init kasan_early_pud_populate(pgd_t *pgd,
unsigned long next;
if (pgd_none(*pgd))
- pgd_populate(&init_mm, pgd, kasan_zero_pud);
+ __pgd_populate(pgd, __pa_symbol(kasan_zero_pud), PUD_TYPE_TABLE);
pud = pud_offset_kimg(pgd, addr);
do {
@@ -148,7 +156,7 @@ void __init kasan_init(void)
*/
memcpy(tmp_pg_dir, swapper_pg_dir, sizeof(tmp_pg_dir));
dsb(ishst);
- cpu_replace_ttbr1(tmp_pg_dir);
+ cpu_replace_ttbr1(lm_alias(tmp_pg_dir));
clear_pgds(KASAN_SHADOW_START, KASAN_SHADOW_END);
@@ -199,10 +207,10 @@ void __init kasan_init(void)
*/
for (i = 0; i < PTRS_PER_PTE; i++)
set_pte(&kasan_zero_pte[i],
- pfn_pte(virt_to_pfn(kasan_zero_page), PAGE_KERNEL_RO));
+ pfn_pte(sym_to_pfn(kasan_zero_page), PAGE_KERNEL_RO));
memset(kasan_zero_page, 0, PAGE_SIZE);
- cpu_replace_ttbr1(swapper_pg_dir);
+ cpu_replace_ttbr1(lm_alias(swapper_pg_dir));
/* At this point kasan is fully initialized. Enable error messages */
init_task.kasan_depth = 0;
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 05615a3..33ecaff 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -30,6 +30,7 @@
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/stop_machine.h>
+#include <linux/mm.h>
#include <asm/barrier.h>
#include <asm/cputype.h>
@@ -319,8 +320,8 @@ static void create_mapping_late(phys_addr_t phys, unsigned long virt,
static void __init __map_memblock(pgd_t *pgd, phys_addr_t start, phys_addr_t end)
{
- unsigned long kernel_start = __pa(_text);
- unsigned long kernel_end = __pa(__init_begin);
+ unsigned long kernel_start = __pa_symbol(_text);
+ unsigned long kernel_end = __pa_symbol(__init_begin);
/*
* Take care not to create a writable alias for the
@@ -387,21 +388,21 @@ void mark_rodata_ro(void)
unsigned long section_size;
section_size = (unsigned long)_etext - (unsigned long)_text;
- create_mapping_late(__pa(_text), (unsigned long)_text,
+ create_mapping_late(__pa_symbol(_text), (unsigned long)_text,
section_size, PAGE_KERNEL_ROX);
/*
* mark .rodata as read only. Use __init_begin rather than __end_rodata
* to cover NOTES and EXCEPTION_TABLE.
*/
section_size = (unsigned long)__init_begin - (unsigned long)__start_rodata;
- create_mapping_late(__pa(__start_rodata), (unsigned long)__start_rodata,
+ create_mapping_late(__pa_symbol(__start_rodata), (unsigned long)__start_rodata,
section_size, PAGE_KERNEL_RO);
}
static void __init map_kernel_segment(pgd_t *pgd, void *va_start, void *va_end,
pgprot_t prot, struct vm_struct *vma)
{
- phys_addr_t pa_start = __pa(va_start);
+ phys_addr_t pa_start = __pa_symbol(va_start);
unsigned long size = va_end - va_start;
BUG_ON(!PAGE_ALIGNED(pa_start));
@@ -449,7 +450,7 @@ static void __init map_kernel(pgd_t *pgd)
*/
BUG_ON(!IS_ENABLED(CONFIG_ARM64_16K_PAGES));
set_pud(pud_set_fixmap_offset(pgd, FIXADDR_START),
- __pud(__pa(bm_pmd) | PUD_TYPE_TABLE));
+ __pud(__pa_symbol(bm_pmd) | PUD_TYPE_TABLE));
pud_clear_fixmap();
} else {
BUG();
@@ -480,7 +481,7 @@ void __init paging_init(void)
*/
cpu_replace_ttbr1(__va(pgd_phys));
memcpy(swapper_pg_dir, pgd, PAGE_SIZE);
- cpu_replace_ttbr1(swapper_pg_dir);
+ cpu_replace_ttbr1(lm_alias(swapper_pg_dir));
pgd_clear_fixmap();
memblock_free(pgd_phys, PAGE_SIZE);
@@ -489,7 +490,7 @@ void __init paging_init(void)
* We only reuse the PGD from the swapper_pg_dir, not the pud + pmd
* allocated with it.
*/
- memblock_free(__pa(swapper_pg_dir) + PAGE_SIZE,
+ memblock_free(__pa_symbol(swapper_pg_dir) + PAGE_SIZE,
SWAPPER_DIR_SIZE - PAGE_SIZE);
}
@@ -600,6 +601,12 @@ static inline pte_t * fixmap_pte(unsigned long addr)
return &bm_pte[pte_index(addr)];
}
+/*
+ * The p*d_populate functions call virt_to_phys implicitly so they can't be used
+ * directly on kernel symbols (bm_p*d). This function is called too early to use
+ * lm_alias so __p*d_populate functions must be used to populate with the
+ * physical address from __pa_symbol.
+ */
void __init early_fixmap_init(void)
{
pgd_t *pgd;
@@ -609,7 +616,7 @@ void __init early_fixmap_init(void)
pgd = pgd_offset_k(addr);
if (CONFIG_PGTABLE_LEVELS > 3 &&
- !(pgd_none(*pgd) || pgd_page_paddr(*pgd) == __pa(bm_pud))) {
+ !(pgd_none(*pgd) || pgd_page_paddr(*pgd) == __pa_symbol(bm_pud))) {
/*
* We only end up here if the kernel mapping and the fixmap
* share the top level pgd entry, which should only happen on
@@ -618,12 +625,14 @@ void __init early_fixmap_init(void)
BUG_ON(!IS_ENABLED(CONFIG_ARM64_16K_PAGES));
pud = pud_offset_kimg(pgd, addr);
} else {
- pgd_populate(&init_mm, pgd, bm_pud);
+ if (pgd_none(*pgd))
+ __pgd_populate(pgd, __pa_symbol(bm_pud), PUD_TYPE_TABLE);
pud = fixmap_pud(addr);
}
- pud_populate(&init_mm, pud, bm_pmd);
+ if (pud_none(*pud))
+ __pud_populate(pud, __pa_symbol(bm_pmd), PMD_TYPE_TABLE);
pmd = fixmap_pmd(addr);
- pmd_populate_kernel(&init_mm, pmd, bm_pte);
+ __pmd_populate(pmd, __pa_symbol(bm_pte), PMD_TYPE_TABLE);
/*
* The boot-ioremap range spans multiple pmds, for which
--
2.7.4
^ permalink raw reply related [flat|nested] 35+ messages in thread
* [PATCHv5 07/11] drivers: firmware: psci: Use __pa_symbol for kernel symbol
2016-12-06 23:50 [PATCHv5 00/11] CONFIG_DEBUG_VIRTUAL for arm64 Laura Abbott
` (5 preceding siblings ...)
2016-12-06 23:50 ` [PATCHv5 06/11] arm64: Use __pa_symbol for kernel symbols Laura Abbott
@ 2016-12-06 23:50 ` Laura Abbott
2016-12-06 23:50 ` [PATCHv5 08/11] kexec: Switch to __pa_symbol Laura Abbott
` (5 subsequent siblings)
12 siblings, 0 replies; 35+ messages in thread
From: Laura Abbott @ 2016-12-06 23:50 UTC (permalink / raw)
To: Mark Rutland, Ard Biesheuvel, Will Deacon, Catalin Marinas,
Lorenzo Pieralisi
Cc: Laura Abbott, Thomas Gleixner, Ingo Molnar, H. Peter Anvin, x86,
linux-kernel, linux-mm, Andrew Morton, Marek Szyprowski,
Joonsoo Kim, Christoffer Dall, Marc Zyngier, linux-arm-kernel
__pa_symbol is technically the macro that should be used for kernel
symbols. Switch to this as a pre-requisite for DEBUG_VIRTUAL which
will do bounds checking.
Signed-off-by: Laura Abbott <labbott@redhat.com>
---
v5: Split off from arm64 __pa_symbol conversion
---
drivers/firmware/psci.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/firmware/psci.c b/drivers/firmware/psci.c
index 8263429..9defbe2 100644
--- a/drivers/firmware/psci.c
+++ b/drivers/firmware/psci.c
@@ -383,7 +383,7 @@ static int psci_suspend_finisher(unsigned long index)
u32 *state = __this_cpu_read(psci_power_state);
return psci_ops.cpu_suspend(state[index - 1],
- virt_to_phys(cpu_resume));
+ __pa_symbol(cpu_resume));
}
int psci_cpu_suspend_enter(unsigned long index)
--
2.7.4
^ permalink raw reply related [flat|nested] 35+ messages in thread
* [PATCHv5 08/11] kexec: Switch to __pa_symbol
2016-12-06 23:50 [PATCHv5 00/11] CONFIG_DEBUG_VIRTUAL for arm64 Laura Abbott
` (6 preceding siblings ...)
2016-12-06 23:50 ` [PATCHv5 07/11] drivers: firmware: psci: Use __pa_symbol for kernel symbol Laura Abbott
@ 2016-12-06 23:50 ` Laura Abbott
2016-12-06 23:50 ` [PATCHv5 09/11] mm/kasan: Switch to using __pa_symbol and lm_alias Laura Abbott
` (4 subsequent siblings)
12 siblings, 0 replies; 35+ messages in thread
From: Laura Abbott @ 2016-12-06 23:50 UTC (permalink / raw)
To: Mark Rutland, Ard Biesheuvel, Will Deacon, Catalin Marinas,
Eric Biederman
Cc: Laura Abbott, Thomas Gleixner, Ingo Molnar, H. Peter Anvin, x86,
linux-kernel, linux-mm, Andrew Morton, Marek Szyprowski,
Joonsoo Kim, linux-arm-kernel, kexec
__pa_symbol is the correct api to get the physical address of kernel
symbols. Switch to it to allow for better debug checking.
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Laura Abbott <labbott@redhat.com>
---
v5: No changes, just acks
---
kernel/kexec_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c
index 5616755..e1b625e 100644
--- a/kernel/kexec_core.c
+++ b/kernel/kexec_core.c
@@ -1397,7 +1397,7 @@ void __weak arch_crash_save_vmcoreinfo(void)
phys_addr_t __weak paddr_vmcoreinfo_note(void)
{
- return __pa((unsigned long)(char *)&vmcoreinfo_note);
+ return __pa_symbol((unsigned long)(char *)&vmcoreinfo_note);
}
static int __init crash_save_vmcoreinfo_init(void)
--
2.7.4
^ permalink raw reply related [flat|nested] 35+ messages in thread
* [PATCHv5 09/11] mm/kasan: Switch to using __pa_symbol and lm_alias
2016-12-06 23:50 [PATCHv5 00/11] CONFIG_DEBUG_VIRTUAL for arm64 Laura Abbott
` (7 preceding siblings ...)
2016-12-06 23:50 ` [PATCHv5 08/11] kexec: Switch to __pa_symbol Laura Abbott
@ 2016-12-06 23:50 ` Laura Abbott
2016-12-13 12:31 ` Mark Rutland
2016-12-06 23:50 ` [PATCHv5 10/11] mm/usercopy: Switch to using lm_alias Laura Abbott
` (3 subsequent siblings)
12 siblings, 1 reply; 35+ messages in thread
From: Laura Abbott @ 2016-12-06 23:50 UTC (permalink / raw)
To: Mark Rutland, Ard Biesheuvel, Will Deacon, Catalin Marinas,
Andrey Ryabinin
Cc: Laura Abbott, Thomas Gleixner, Ingo Molnar, H. Peter Anvin, x86,
linux-kernel, linux-mm, Andrew Morton, Marek Szyprowski,
Joonsoo Kim, linux-arm-kernel, Alexander Potapenko,
Dmitry Vyukov, kasan-dev
__pa_symbol is the correct API to find the physical address of symbols.
Switch to it to allow for debugging APIs to work correctly. Other
functions such as p*d_populate may call __pa internally. Ensure that the
address passed is in the linear region by calling lm_alias.
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Laura Abbott <labbott@redhat.com>
---
v5: Add missing lm_alias call
---
mm/kasan/kasan_init.c | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff --git a/mm/kasan/kasan_init.c b/mm/kasan/kasan_init.c
index 3f9a41c..922f459 100644
--- a/mm/kasan/kasan_init.c
+++ b/mm/kasan/kasan_init.c
@@ -16,6 +16,7 @@
#include <linux/kernel.h>
#include <linux/memblock.h>
#include <linux/pfn.h>
+#include <linux/mm.h>
#include <asm/page.h>
#include <asm/pgalloc.h>
@@ -49,7 +50,7 @@ static void __init zero_pte_populate(pmd_t *pmd, unsigned long addr,
pte_t *pte = pte_offset_kernel(pmd, addr);
pte_t zero_pte;
- zero_pte = pfn_pte(PFN_DOWN(__pa(kasan_zero_page)), PAGE_KERNEL);
+ zero_pte = pfn_pte(PFN_DOWN(__pa_symbol(kasan_zero_page)), PAGE_KERNEL);
zero_pte = pte_wrprotect(zero_pte);
while (addr + PAGE_SIZE <= end) {
@@ -69,7 +70,7 @@ static void __init zero_pmd_populate(pud_t *pud, unsigned long addr,
next = pmd_addr_end(addr, end);
if (IS_ALIGNED(addr, PMD_SIZE) && end - addr >= PMD_SIZE) {
- pmd_populate_kernel(&init_mm, pmd, kasan_zero_pte);
+ pmd_populate_kernel(&init_mm, pmd, lm_alias(kasan_zero_pte));
continue;
}
@@ -92,9 +93,9 @@ static void __init zero_pud_populate(pgd_t *pgd, unsigned long addr,
if (IS_ALIGNED(addr, PUD_SIZE) && end - addr >= PUD_SIZE) {
pmd_t *pmd;
- pud_populate(&init_mm, pud, kasan_zero_pmd);
+ pud_populate(&init_mm, pud, lm_alias(kasan_zero_pmd));
pmd = pmd_offset(pud, addr);
- pmd_populate_kernel(&init_mm, pmd, kasan_zero_pte);
+ pmd_populate_kernel(&init_mm, pmd, lm_alias(kasan_zero_pte));
continue;
}
@@ -135,11 +136,11 @@ void __init kasan_populate_zero_shadow(const void *shadow_start,
* puds,pmds, so pgd_populate(), pud_populate()
* is noops.
*/
- pgd_populate(&init_mm, pgd, kasan_zero_pud);
+ pgd_populate(&init_mm, pgd, lm_alias(kasan_zero_pud));
pud = pud_offset(pgd, addr);
- pud_populate(&init_mm, pud, kasan_zero_pmd);
+ pud_populate(&init_mm, pud, lm_alias(kasan_zero_pmd));
pmd = pmd_offset(pud, addr);
- pmd_populate_kernel(&init_mm, pmd, kasan_zero_pte);
+ pmd_populate_kernel(&init_mm, pmd, lm_alias(kasan_zero_pte));
continue;
}
--
2.7.4
^ permalink raw reply related [flat|nested] 35+ messages in thread
* [PATCHv5 10/11] mm/usercopy: Switch to using lm_alias
2016-12-06 23:50 [PATCHv5 00/11] CONFIG_DEBUG_VIRTUAL for arm64 Laura Abbott
` (8 preceding siblings ...)
2016-12-06 23:50 ` [PATCHv5 09/11] mm/kasan: Switch to using __pa_symbol and lm_alias Laura Abbott
@ 2016-12-06 23:50 ` Laura Abbott
2016-12-06 23:50 ` [PATCHv5 11/11] arm64: Add support for CONFIG_DEBUG_VIRTUAL Laura Abbott
` (2 subsequent siblings)
12 siblings, 0 replies; 35+ messages in thread
From: Laura Abbott @ 2016-12-06 23:50 UTC (permalink / raw)
To: Mark Rutland, Ard Biesheuvel, Will Deacon, Catalin Marinas, Kees Cook
Cc: Laura Abbott, Thomas Gleixner, Ingo Molnar, H. Peter Anvin, x86,
linux-kernel, linux-mm, Andrew Morton, Marek Szyprowski,
Joonsoo Kim, linux-arm-kernel
The usercopy checking code currently calls __va(__pa(...)) to check for
aliases on symbols. Switch to using lm_alias instead.
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Laura Abbott <labbott@redhat.com>
---
v5: No changes, just acks
---
mm/usercopy.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/usercopy.c b/mm/usercopy.c
index 3c8da0a..8345299 100644
--- a/mm/usercopy.c
+++ b/mm/usercopy.c
@@ -108,13 +108,13 @@ static inline const char *check_kernel_text_object(const void *ptr,
* __pa() is not just the reverse of __va(). This can be detected
* and checked:
*/
- textlow_linear = (unsigned long)__va(__pa(textlow));
+ textlow_linear = (unsigned long)lm_alias(textlow);
/* No different mapping: we're done. */
if (textlow_linear == textlow)
return NULL;
/* Check the secondary mapping... */
- texthigh_linear = (unsigned long)__va(__pa(texthigh));
+ texthigh_linear = (unsigned long)lm_alias(texthigh);
if (overlaps(ptr, n, textlow_linear, texthigh_linear))
return "<linear kernel text>";
--
2.7.4
^ permalink raw reply related [flat|nested] 35+ messages in thread
* [PATCHv5 11/11] arm64: Add support for CONFIG_DEBUG_VIRTUAL
2016-12-06 23:50 [PATCHv5 00/11] CONFIG_DEBUG_VIRTUAL for arm64 Laura Abbott
` (9 preceding siblings ...)
2016-12-06 23:50 ` [PATCHv5 10/11] mm/usercopy: Switch to using lm_alias Laura Abbott
@ 2016-12-06 23:50 ` Laura Abbott
2016-12-08 18:59 ` [PATCH v2 0/4] ARM: " Florian Fainelli
2016-12-13 13:50 ` [PATCHv5 00/11] CONFIG_DEBUG_VIRTUAL for arm64 Mark Rutland
12 siblings, 0 replies; 35+ messages in thread
From: Laura Abbott @ 2016-12-06 23:50 UTC (permalink / raw)
To: Mark Rutland, Ard Biesheuvel, Will Deacon, Catalin Marinas
Cc: Laura Abbott, Thomas Gleixner, Ingo Molnar, H. Peter Anvin, x86,
linux-kernel, linux-mm, Andrew Morton, Marek Szyprowski,
Joonsoo Kim, linux-arm-kernel
x86 has an option CONFIG_DEBUG_VIRTUAL to do additional checks
on virt_to_phys calls. The goal is to catch users who are calling
virt_to_phys on non-linear addresses immediately. This inclues callers
using virt_to_phys on image addresses instead of __pa_symbol. As features
such as CONFIG_VMAP_STACK get enabled for arm64, this becomes increasingly
important. Add checks to catch bad virt_to_phys usage.
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Laura Abbott <labbott@redhat.com>
---
v5: Tweak warning output slightly, acks
---
arch/arm64/Kconfig | 1 +
arch/arm64/include/asm/memory.h | 31 ++++++++++++++++++++++++++++---
arch/arm64/mm/Makefile | 2 ++
arch/arm64/mm/physaddr.c | 30 ++++++++++++++++++++++++++++++
4 files changed, 61 insertions(+), 3 deletions(-)
create mode 100644 arch/arm64/mm/physaddr.c
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 969ef88..83b95bc 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -6,6 +6,7 @@ config ARM64
select ACPI_MCFG if ACPI
select ACPI_SPCR_TABLE if ACPI
select ARCH_CLOCKSOURCE_DATA
+ select ARCH_HAS_DEBUG_VIRTUAL
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI
select ARCH_HAS_ELF_RANDOMIZE
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index 041bce28..a405665 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -167,10 +167,33 @@ extern u64 kimage_voffset;
* private definitions which should NOT be used outside memory.h
* files. Use virt_to_phys/phys_to_virt/__pa/__va instead.
*/
-#define __virt_to_phys(x) ({ \
+
+
+/*
+ * The linear kernel range starts in the middle of the virtual adddress
+ * space. Testing the top bit for the start of the region is a
+ * sufficient check.
+ */
+#define __is_lm_address(addr) (!!((addr) & BIT(VA_BITS - 1)))
+
+#define __lm_to_phys(addr) (((addr) & ~PAGE_OFFSET) + PHYS_OFFSET)
+#define __kimg_to_phys(addr) ((addr) - kimage_voffset)
+
+#define __virt_to_phys_nodebug(x) ({ \
phys_addr_t __x = (phys_addr_t)(x); \
- __x & BIT(VA_BITS - 1) ? (__x & ~PAGE_OFFSET) + PHYS_OFFSET : \
- (__x - kimage_voffset); })
+ __is_lm_address(__x) ? __lm_to_phys(__x) : \
+ __kimg_to_phys(__x); \
+})
+
+#define __pa_symbol_nodebug(x) __kimg_to_phys((phys_addr_t)(x))
+
+#ifdef CONFIG_DEBUG_VIRTUAL
+extern phys_addr_t __virt_to_phys(unsigned long x);
+extern phys_addr_t __phys_addr_symbol(unsigned long x);
+#else
+#define __virt_to_phys(x) __virt_to_phys_nodebug(x)
+#define __phys_addr_symbol(x) __pa_symbol_nodebug(x)
+#endif
#define __phys_to_virt(x) ((unsigned long)((x) - PHYS_OFFSET) | PAGE_OFFSET)
#define __phys_to_kimg(x) ((unsigned long)((x) + kimage_voffset))
@@ -202,6 +225,8 @@ static inline void *phys_to_virt(phys_addr_t x)
* Drivers should NOT use these either.
*/
#define __pa(x) __virt_to_phys((unsigned long)(x))
+#define __pa_symbol(x) __phys_addr_symbol(RELOC_HIDE((unsigned long)(x), 0))
+#define __pa_nodebug(x) __virt_to_phys_nodebug((unsigned long)(x))
#define __va(x) ((void *)__phys_to_virt((phys_addr_t)(x)))
#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
#define virt_to_pfn(x) __phys_to_pfn(__virt_to_phys((unsigned long)(x)))
diff --git a/arch/arm64/mm/Makefile b/arch/arm64/mm/Makefile
index 54bb209..38d3811 100644
--- a/arch/arm64/mm/Makefile
+++ b/arch/arm64/mm/Makefile
@@ -5,6 +5,8 @@ obj-y := dma-mapping.o extable.o fault.o init.o \
obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
obj-$(CONFIG_ARM64_PTDUMP) += dump.o
obj-$(CONFIG_NUMA) += numa.o
+obj-$(CONFIG_DEBUG_VIRTUAL) += physaddr.o
+KASAN_SANITIZE_physaddr.o += n
obj-$(CONFIG_KASAN) += kasan_init.o
KASAN_SANITIZE_kasan_init.o := n
diff --git a/arch/arm64/mm/physaddr.c b/arch/arm64/mm/physaddr.c
new file mode 100644
index 0000000..91371da
--- /dev/null
+++ b/arch/arm64/mm/physaddr.c
@@ -0,0 +1,30 @@
+#include <linux/bug.h>
+#include <linux/export.h>
+#include <linux/types.h>
+#include <linux/mmdebug.h>
+#include <linux/mm.h>
+
+#include <asm/memory.h>
+
+phys_addr_t __virt_to_phys(unsigned long x)
+{
+ WARN(!__is_lm_address(x),
+ "virt_to_phys used for non-linear address: %pK (%pS)\n",
+ (void *)x,
+ (void *)x);
+
+ return __virt_to_phys_nodebug(x);
+}
+EXPORT_SYMBOL(__virt_to_phys);
+
+phys_addr_t __phys_addr_symbol(unsigned long x)
+{
+ /*
+ * This is bounds checking against the kernel image only.
+ * __pa_symbol should only be used on kernel symbol addresses.
+ */
+ VIRTUAL_BUG_ON(x < (unsigned long) KERNEL_START ||
+ x > (unsigned long) KERNEL_END);
+ return __pa_symbol_nodebug(x);
+}
+EXPORT_SYMBOL(__phys_addr_symbol);
--
2.7.4
^ permalink raw reply related [flat|nested] 35+ messages in thread
* [PATCH v2 0/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL
2016-12-06 23:50 [PATCHv5 00/11] CONFIG_DEBUG_VIRTUAL for arm64 Laura Abbott
` (10 preceding siblings ...)
2016-12-06 23:50 ` [PATCHv5 11/11] arm64: Add support for CONFIG_DEBUG_VIRTUAL Laura Abbott
@ 2016-12-08 18:59 ` Florian Fainelli
2016-12-08 18:59 ` [PATCH v2 1/4] mtd: lart: Rename partition defines to be prefixed with PART_ Florian Fainelli
` (4 more replies)
2016-12-13 13:50 ` [PATCHv5 00/11] CONFIG_DEBUG_VIRTUAL for arm64 Mark Rutland
12 siblings, 5 replies; 35+ messages in thread
From: Florian Fainelli @ 2016-12-08 18:59 UTC (permalink / raw)
To: linux-arm-kernel
Cc: Florian Fainelli, linux, nicolas.pitre, panand, chris.brandt,
arnd, jonathan.austin, pawel.moll, vladimir.murzin, mark.rutland,
ard.biesheuvel, keescook, matt, labbott, kirill.shutemov, ben,
js07.lee, stefan, linux-kernel
This patch series builds on top of Laura's [PATCHv5 00/10] CONFIG_DEBUG_VIRTUAL
for arm64 to add support for CONFIG_DEBUG_VIRTUAL for ARM.
This was tested on a Brahma B15 platform (ARMv7 + HIGHMEM + LPAE).
Note that the treewide changes would involve a huge CC list, which
is why it has been purposely trimmed to just focusing on the DEBUG_VIRTUAL
aspect.
Changes in v2:
- Modified MTD LART driver not to create symbol conflicts with
KERNEL_START
- Fixed patch that defines and uses KERNEL_START/END
- Fixed __pa_symbol()'s definition
- Inline __pa_symbol() check wihtin the VIRTUAL_BUG_ON statement
- Simplified check for virtual addresses
- Added a tree-wide patch changing SMP/PM implementations to use
__pa_symbol(), build tested against multi_v{5,7}_defconfig
Thanks!
Florian Fainelli (4):
mtd: lart: Rename partition defines to be prefixed with PART_
ARM: Define KERNEL_START and KERNEL_END
ARM: Add support for CONFIG_DEBUG_VIRTUAL
ARM: treewide: Replace uses of virt_to_phys with __pa_symbol
arch/arm/Kconfig | 1 +
arch/arm/boot/compressed/piggy.xzkern | Bin 0 -> 2998584 bytes
arch/arm/common/mcpm_entry.c | 12 +++----
arch/arm/include/asm/memory.h | 23 ++++++++++++--
arch/arm/mach-alpine/platsmp.c | 2 +-
arch/arm/mach-axxia/platsmp.c | 2 +-
arch/arm/mach-bcm/bcm63xx_smp.c | 2 +-
arch/arm/mach-bcm/platsmp-brcmstb.c | 2 +-
arch/arm/mach-bcm/platsmp.c | 4 +--
arch/arm/mach-berlin/platsmp.c | 2 +-
arch/arm/mach-exynos/firmware.c | 4 +--
arch/arm/mach-exynos/mcpm-exynos.c | 2 +-
arch/arm/mach-exynos/platsmp.c | 4 +--
arch/arm/mach-exynos/pm.c | 6 ++--
arch/arm/mach-exynos/suspend.c | 6 ++--
arch/arm/mach-hisi/platmcpm.c | 2 +-
arch/arm/mach-hisi/platsmp.c | 6 ++--
arch/arm/mach-imx/platsmp.c | 2 +-
arch/arm/mach-imx/pm-imx6.c | 2 +-
arch/arm/mach-imx/src.c | 2 +-
arch/arm/mach-mediatek/platsmp.c | 2 +-
arch/arm/mach-mvebu/pm.c | 2 +-
arch/arm/mach-mvebu/pmsu.c | 2 +-
arch/arm/mach-mvebu/system-controller.c | 2 +-
arch/arm/mach-omap2/control.c | 8 ++---
arch/arm/mach-omap2/omap-mpuss-lowpower.c | 8 ++---
arch/arm/mach-omap2/omap-smp.c | 4 +--
arch/arm/mach-prima2/platsmp.c | 2 +-
arch/arm/mach-prima2/pm.c | 2 +-
arch/arm/mach-pxa/palmz72.c | 2 +-
arch/arm/mach-pxa/pxa25x.c | 2 +-
arch/arm/mach-pxa/pxa27x.c | 2 +-
arch/arm/mach-pxa/pxa3xx.c | 2 +-
arch/arm/mach-realview/platsmp-dt.c | 2 +-
arch/arm/mach-rockchip/platsmp.c | 4 +--
arch/arm/mach-rockchip/pm.c | 2 +-
arch/arm/mach-s3c24xx/mach-jive.c | 2 +-
arch/arm/mach-s3c24xx/pm-s3c2410.c | 2 +-
arch/arm/mach-s3c24xx/pm-s3c2416.c | 2 +-
arch/arm/mach-s3c64xx/pm.c | 2 +-
arch/arm/mach-s5pv210/pm.c | 2 +-
arch/arm/mach-sa1100/pm.c | 2 +-
arch/arm/mach-shmobile/platsmp-apmu.c | 6 ++--
arch/arm/mach-shmobile/platsmp-scu.c | 4 +--
arch/arm/mach-socfpga/platsmp.c | 4 +--
arch/arm/mach-spear/platsmp.c | 2 +-
arch/arm/mach-sti/platsmp.c | 2 +-
arch/arm/mach-sunxi/platsmp.c | 4 +--
arch/arm/mach-tango/platsmp.c | 2 +-
arch/arm/mach-tango/pm.c | 2 +-
arch/arm/mach-tegra/reset.c | 4 +--
arch/arm/mach-ux500/platsmp.c | 2 +-
arch/arm/mach-vexpress/dcscb.c | 2 +-
arch/arm/mach-vexpress/platsmp.c | 2 +-
arch/arm/mach-vexpress/tc2_pm.c | 4 +--
arch/arm/mach-zx/platsmp.c | 4 +--
arch/arm/mach-zynq/platsmp.c | 2 +-
arch/arm/mm/Makefile | 1 +
arch/arm/mm/init.c | 7 ++--
arch/arm/mm/mmu.c | 6 +---
arch/arm/mm/physaddr.c | 51 ++++++++++++++++++++++++++++++
drivers/mtd/devices/lart.c | 24 +++++++-------
62 files changed, 173 insertions(+), 108 deletions(-)
create mode 100644 arch/arm/boot/compressed/piggy.xzkern
create mode 100644 arch/arm/mm/physaddr.c
--
2.9.3
^ permalink raw reply [flat|nested] 35+ messages in thread
* [PATCH v2 1/4] mtd: lart: Rename partition defines to be prefixed with PART_
2016-12-08 18:59 ` [PATCH v2 0/4] ARM: " Florian Fainelli
@ 2016-12-08 18:59 ` Florian Fainelli
2016-12-08 18:59 ` [PATCH v2 2/4] ARM: Define KERNEL_START and KERNEL_END Florian Fainelli
` (3 subsequent siblings)
4 siblings, 0 replies; 35+ messages in thread
From: Florian Fainelli @ 2016-12-08 18:59 UTC (permalink / raw)
To: linux-arm-kernel
Cc: Florian Fainelli, linux, nicolas.pitre, panand, chris.brandt,
arnd, jonathan.austin, pawel.moll, vladimir.murzin, mark.rutland,
ard.biesheuvel, keescook, matt, labbott, kirill.shutemov, ben,
js07.lee, stefan, linux-kernel
In preparation for defining KERNEL_START on ARM, rename KERNEL_START to
PART_KERNEL_START, and to be consistent, do this for all
partition-related constants.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
drivers/mtd/devices/lart.c | 24 ++++++++++++------------
1 file changed, 12 insertions(+), 12 deletions(-)
diff --git a/drivers/mtd/devices/lart.c b/drivers/mtd/devices/lart.c
index 82bd00af5cc3..268aae45b514 100644
--- a/drivers/mtd/devices/lart.c
+++ b/drivers/mtd/devices/lart.c
@@ -75,18 +75,18 @@ static char module_name[] = "lart";
/* blob */
#define NUM_BLOB_BLOCKS FLASH_NUMBLOCKS_16m_PARAM
-#define BLOB_START 0x00000000
-#define BLOB_LEN (NUM_BLOB_BLOCKS * FLASH_BLOCKSIZE_PARAM)
+#define PART_BLOB_START 0x00000000
+#define PART_BLOB_LEN (NUM_BLOB_BLOCKS * FLASH_BLOCKSIZE_PARAM)
/* kernel */
#define NUM_KERNEL_BLOCKS 7
-#define KERNEL_START (BLOB_START + BLOB_LEN)
-#define KERNEL_LEN (NUM_KERNEL_BLOCKS * FLASH_BLOCKSIZE_MAIN)
+#define PART_KERNEL_START (PART_BLOB_START + PART_BLOB_LEN)
+#define PART_KERNEL_LEN (NUM_KERNEL_BLOCKS * FLASH_BLOCKSIZE_MAIN)
/* initial ramdisk */
#define NUM_INITRD_BLOCKS 24
-#define INITRD_START (KERNEL_START + KERNEL_LEN)
-#define INITRD_LEN (NUM_INITRD_BLOCKS * FLASH_BLOCKSIZE_MAIN)
+#define PART_INITRD_START (PART_KERNEL_START + PART_KERNEL_LEN)
+#define PART_INITRD_LEN (NUM_INITRD_BLOCKS * FLASH_BLOCKSIZE_MAIN)
/*
* See section 4.0 in "3 Volt Fast Boot Block Flash Memory" Intel Datasheet
@@ -587,20 +587,20 @@ static struct mtd_partition lart_partitions[] = {
/* blob */
{
.name = "blob",
- .offset = BLOB_START,
- .size = BLOB_LEN,
+ .offset = PART_BLOB_START,
+ .size = PART_BLOB_LEN,
},
/* kernel */
{
.name = "kernel",
- .offset = KERNEL_START, /* MTDPART_OFS_APPEND */
- .size = KERNEL_LEN,
+ .offset = PART_KERNEL_START, /* MTDPART_OFS_APPEND */
+ .size = PART_KERNEL_LEN,
},
/* initial ramdisk / file system */
{
.name = "file system",
- .offset = INITRD_START, /* MTDPART_OFS_APPEND */
- .size = INITRD_LEN, /* MTDPART_SIZ_FULL */
+ .offset = PART_INITRD_START, /* MTDPART_OFS_APPEND */
+ .size = PART_INITRD_LEN, /* MTDPART_SIZ_FULL */
}
};
#define NUM_PARTITIONS ARRAY_SIZE(lart_partitions)
--
2.9.3
^ permalink raw reply related [flat|nested] 35+ messages in thread
* [PATCH v2 2/4] ARM: Define KERNEL_START and KERNEL_END
2016-12-08 18:59 ` [PATCH v2 0/4] ARM: " Florian Fainelli
2016-12-08 18:59 ` [PATCH v2 1/4] mtd: lart: Rename partition defines to be prefixed with PART_ Florian Fainelli
@ 2016-12-08 18:59 ` Florian Fainelli
2016-12-08 18:59 ` [PATCH v2 3/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Florian Fainelli
` (2 subsequent siblings)
4 siblings, 0 replies; 35+ messages in thread
From: Florian Fainelli @ 2016-12-08 18:59 UTC (permalink / raw)
To: linux-arm-kernel
Cc: Florian Fainelli, linux, nicolas.pitre, panand, chris.brandt,
arnd, jonathan.austin, pawel.moll, vladimir.murzin, mark.rutland,
ard.biesheuvel, keescook, matt, labbott, kirill.shutemov, ben,
js07.lee, stefan, linux-kernel
In preparation for adding CONFIG_DEBUG_VIRTUAL support, define a set of
common constants: KERNEL_START and KERNEL_END which abstract
CONFIG_XIP_KERNEL vs. !CONFIG_XIP_KERNEL. Update the code where
relevant.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
arch/arm/include/asm/memory.h | 7 +++++++
arch/arm/mm/init.c | 7 ++-----
arch/arm/mm/mmu.c | 6 +-----
3 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index 76cbd9c674df..bee7511c5098 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -111,6 +111,13 @@
#endif /* !CONFIG_MMU */
+#ifdef CONFIG_XIP_KERNEL
+#define KERNEL_START _sdata
+#else
+#define KERNEL_START _stext
+#endif
+#define KERNEL_END _end
+
/*
* We fix the TCM memories max 32 KiB ITCM resp DTCM at these
* locations
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 370581aeb871..c87d0d5b65f2 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -230,11 +230,8 @@ phys_addr_t __init arm_memblock_steal(phys_addr_t size, phys_addr_t align)
void __init arm_memblock_init(const struct machine_desc *mdesc)
{
/* Register the kernel text, kernel data and initrd with memblock. */
-#ifdef CONFIG_XIP_KERNEL
- memblock_reserve(__pa(_sdata), _end - _sdata);
-#else
- memblock_reserve(__pa(_stext), _end - _stext);
-#endif
+ memblock_reserve(__pa(KERNEL_START), _end - KERNEL_START);
+
#ifdef CONFIG_BLK_DEV_INITRD
/* FDT scan will populate initrd_start */
if (initrd_start && !phys_initrd_size) {
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 4001dd15818d..f0fd1a2db036 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -1437,11 +1437,7 @@ static void __init kmap_init(void)
static void __init map_lowmem(void)
{
struct memblock_region *reg;
-#ifdef CONFIG_XIP_KERNEL
- phys_addr_t kernel_x_start = round_down(__pa(_sdata), SECTION_SIZE);
-#else
- phys_addr_t kernel_x_start = round_down(__pa(_stext), SECTION_SIZE);
-#endif
+ phys_addr_t kernel_x_start = round_down(__pa(KERNEL_START), SECTION_SIZE);
phys_addr_t kernel_x_end = round_up(__pa(__init_end), SECTION_SIZE);
/* Map all the lowmem memory banks. */
--
2.9.3
^ permalink raw reply related [flat|nested] 35+ messages in thread
* [PATCH v2 3/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL
2016-12-08 18:59 ` [PATCH v2 0/4] ARM: " Florian Fainelli
2016-12-08 18:59 ` [PATCH v2 1/4] mtd: lart: Rename partition defines to be prefixed with PART_ Florian Fainelli
2016-12-08 18:59 ` [PATCH v2 2/4] ARM: Define KERNEL_START and KERNEL_END Florian Fainelli
@ 2016-12-08 18:59 ` Florian Fainelli
2016-12-08 18:59 ` [PATCH v2 4/4] ARM: treewide: Replace uses of virt_to_phys with __pa_symbol Florian Fainelli
2016-12-09 23:36 ` [PATCH v3 0/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Florian Fainelli
4 siblings, 0 replies; 35+ messages in thread
From: Florian Fainelli @ 2016-12-08 18:59 UTC (permalink / raw)
To: linux-arm-kernel
Cc: Florian Fainelli, linux, nicolas.pitre, panand, chris.brandt,
arnd, jonathan.austin, pawel.moll, vladimir.murzin, mark.rutland,
ard.biesheuvel, keescook, matt, labbott, kirill.shutemov, ben,
js07.lee, stefan, linux-kernel
x86 has an option: CONFIG_DEBUG_VIRTUAL to do additional checks on
virt_to_phys calls. The goal is to catch users who are calling
virt_to_phys on non-linear addresses immediately. This includes caller
using __virt_to_phys() on image addresses instead of __pa_symbol(). This
is a generally useful debug feature to spot bad code (particulary in
drivers).
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
arch/arm/Kconfig | 1 +
arch/arm/include/asm/memory.h | 16 ++++++++++++--
arch/arm/mm/Makefile | 1 +
arch/arm/mm/physaddr.c | 51 +++++++++++++++++++++++++++++++++++++++++++
4 files changed, 67 insertions(+), 2 deletions(-)
create mode 100644 arch/arm/mm/physaddr.c
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index b5d529fdffab..5e66173c5787 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -2,6 +2,7 @@ config ARM
bool
default y
select ARCH_CLOCKSOURCE_DATA
+ select ARCH_HAS_DEBUG_VIRTUAL
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_HAS_ELF_RANDOMIZE
select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index bee7511c5098..d90300193adf 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -213,7 +213,7 @@ extern const void *__pv_table_begin, *__pv_table_end;
: "r" (x), "I" (__PV_BITS_31_24) \
: "cc")
-static inline phys_addr_t __virt_to_phys(unsigned long x)
+static inline phys_addr_t __virt_to_phys_nodebug(unsigned long x)
{
phys_addr_t t;
@@ -245,7 +245,7 @@ static inline unsigned long __phys_to_virt(phys_addr_t x)
#define PHYS_OFFSET PLAT_PHYS_OFFSET
#define PHYS_PFN_OFFSET ((unsigned long)(PHYS_OFFSET >> PAGE_SHIFT))
-static inline phys_addr_t __virt_to_phys(unsigned long x)
+static inline phys_addr_t __virt_to_phys_nodebug(unsigned long x)
{
return (phys_addr_t)x - PAGE_OFFSET + PHYS_OFFSET;
}
@@ -261,6 +261,16 @@ static inline unsigned long __phys_to_virt(phys_addr_t x)
((((unsigned long)(kaddr) - PAGE_OFFSET) >> PAGE_SHIFT) + \
PHYS_PFN_OFFSET)
+#define __pa_symbol_nodebug(x) __virt_to_phys_nodebug((x))
+
+#ifdef CONFIG_DEBUG_VIRTUAL
+extern phys_addr_t __virt_to_phys(unsigned long x);
+extern phys_addr_t __phys_addr_symbol(unsigned long x);
+#else
+#define __virt_to_phys(x) __virt_to_phys_nodebug(x)
+#define __phys_addr_symbol(x) __pa_symbol_nodebug(x)
+#endif
+
/*
* These are *only* valid on the kernel direct mapped RAM memory.
* Note: Drivers should NOT use these. They are the wrong
@@ -283,9 +293,11 @@ static inline void *phys_to_virt(phys_addr_t x)
* Drivers should NOT use these either.
*/
#define __pa(x) __virt_to_phys((unsigned long)(x))
+#define __pa_symbol(x) __phys_addr_symbol(RELOC_HIDE((unsigned long)(x), 0))
#define __va(x) ((void *)__phys_to_virt((phys_addr_t)(x)))
#define pfn_to_kaddr(pfn) __va((phys_addr_t)(pfn) << PAGE_SHIFT)
+
extern long long arch_phys_to_idmap_offset;
/*
diff --git a/arch/arm/mm/Makefile b/arch/arm/mm/Makefile
index e8698241ece9..b3dea80715b4 100644
--- a/arch/arm/mm/Makefile
+++ b/arch/arm/mm/Makefile
@@ -14,6 +14,7 @@ endif
obj-$(CONFIG_ARM_PTDUMP) += dump.o
obj-$(CONFIG_MODULES) += proc-syms.o
+obj-$(CONFIG_DEBUG_VIRTUAL) += physaddr.o
obj-$(CONFIG_ALIGNMENT_TRAP) += alignment.o
obj-$(CONFIG_HIGHMEM) += highmem.o
diff --git a/arch/arm/mm/physaddr.c b/arch/arm/mm/physaddr.c
new file mode 100644
index 000000000000..0288760306ce
--- /dev/null
+++ b/arch/arm/mm/physaddr.c
@@ -0,0 +1,51 @@
+#include <linux/bug.h>
+#include <linux/export.h>
+#include <linux/types.h>
+#include <linux/mmdebug.h>
+#include <linux/mm.h>
+
+#include <asm/sections.h>
+#include <asm/memory.h>
+#include <asm/fixmap.h>
+#include <asm/dma.h>
+
+#include "mm.h"
+
+static inline bool __virt_addr_valid(unsigned long x)
+{
+ /* high_memory does not get immediately defined, and there
+ * are early callers of __pa() against PAGE_OFFSET, just catch
+ * these here, then do normal checks, with the exception of
+ * MAX_DMA_ADDRESS.
+ */
+ if ((x >= PAGE_OFFSET && !high_memory) ||
+ (x >= PAGE_OFFSET &&
+ high_memory && x < (unsigned long)high_memory) ||
+ x == MAX_DMA_ADDRESS)
+ return true;
+
+ return false;
+}
+
+phys_addr_t __virt_to_phys(unsigned long x)
+{
+ WARN(!__virt_addr_valid(x),
+ "virt_to_phys used for non-linear address: %pK (%pS)\n",
+ (void *)x,
+ (void *)x);
+
+ return __virt_to_phys_nodebug(x);
+}
+EXPORT_SYMBOL(__virt_to_phys);
+
+phys_addr_t __phys_addr_symbol(unsigned long x)
+{
+ /* This is bounds checking against the kernel image only.
+ * __pa_symbol should only be used on kernel symbol addresses.
+ */
+ VIRTUAL_BUG_ON(x < (unsigned long)KERNEL_START ||
+ x > (unsigned long)KERNEL_END);
+
+ return __pa_symbol_nodebug(x);
+}
+EXPORT_SYMBOL(__phys_addr_symbol);
--
2.9.3
^ permalink raw reply related [flat|nested] 35+ messages in thread
* [PATCH v2 4/4] ARM: treewide: Replace uses of virt_to_phys with __pa_symbol
2016-12-08 18:59 ` [PATCH v2 0/4] ARM: " Florian Fainelli
` (2 preceding siblings ...)
2016-12-08 18:59 ` [PATCH v2 3/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Florian Fainelli
@ 2016-12-08 18:59 ` Florian Fainelli
2016-12-08 21:49 ` kbuild test robot
2016-12-09 23:36 ` [PATCH v3 0/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Florian Fainelli
4 siblings, 1 reply; 35+ messages in thread
From: Florian Fainelli @ 2016-12-08 18:59 UTC (permalink / raw)
To: linux-arm-kernel
Cc: Florian Fainelli, linux, nicolas.pitre, panand, chris.brandt,
arnd, jonathan.austin, pawel.moll, vladimir.murzin, mark.rutland,
ard.biesheuvel, keescook, matt, labbott, kirill.shutemov, ben,
js07.lee, stefan, linux-kernel
All low-level PM/SMP code using virt_to_phys() should actually use
__pa_symbol() against kernel symbols. Update code where relevant to move
away from virt_to_phys().
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
arch/arm/common/mcpm_entry.c | 12 ++++++------
arch/arm/mach-alpine/platsmp.c | 2 +-
arch/arm/mach-axxia/platsmp.c | 2 +-
arch/arm/mach-bcm/bcm63xx_smp.c | 2 +-
arch/arm/mach-bcm/platsmp-brcmstb.c | 2 +-
arch/arm/mach-bcm/platsmp.c | 4 ++--
arch/arm/mach-berlin/platsmp.c | 2 +-
arch/arm/mach-exynos/firmware.c | 4 ++--
arch/arm/mach-exynos/mcpm-exynos.c | 2 +-
arch/arm/mach-exynos/platsmp.c | 4 ++--
arch/arm/mach-exynos/pm.c | 6 +++---
arch/arm/mach-exynos/suspend.c | 6 +++---
arch/arm/mach-hisi/platmcpm.c | 2 +-
arch/arm/mach-hisi/platsmp.c | 6 +++---
arch/arm/mach-imx/platsmp.c | 2 +-
arch/arm/mach-imx/pm-imx6.c | 2 +-
arch/arm/mach-imx/src.c | 2 +-
arch/arm/mach-mediatek/platsmp.c | 2 +-
arch/arm/mach-mvebu/pm.c | 2 +-
arch/arm/mach-mvebu/pmsu.c | 2 +-
arch/arm/mach-mvebu/system-controller.c | 2 +-
arch/arm/mach-omap2/control.c | 8 ++++----
arch/arm/mach-omap2/omap-mpuss-lowpower.c | 8 ++++----
arch/arm/mach-omap2/omap-smp.c | 4 ++--
arch/arm/mach-prima2/platsmp.c | 2 +-
arch/arm/mach-prima2/pm.c | 2 +-
arch/arm/mach-pxa/palmz72.c | 2 +-
arch/arm/mach-pxa/pxa25x.c | 2 +-
arch/arm/mach-pxa/pxa27x.c | 2 +-
arch/arm/mach-pxa/pxa3xx.c | 2 +-
arch/arm/mach-realview/platsmp-dt.c | 2 +-
arch/arm/mach-rockchip/platsmp.c | 4 ++--
arch/arm/mach-rockchip/pm.c | 2 +-
arch/arm/mach-s3c24xx/mach-jive.c | 2 +-
arch/arm/mach-s3c24xx/pm-s3c2410.c | 2 +-
arch/arm/mach-s3c24xx/pm-s3c2416.c | 2 +-
arch/arm/mach-s3c64xx/pm.c | 2 +-
arch/arm/mach-s5pv210/pm.c | 2 +-
arch/arm/mach-sa1100/pm.c | 2 +-
arch/arm/mach-shmobile/platsmp-apmu.c | 6 +++---
arch/arm/mach-shmobile/platsmp-scu.c | 4 ++--
arch/arm/mach-socfpga/platsmp.c | 4 ++--
arch/arm/mach-spear/platsmp.c | 2 +-
arch/arm/mach-sti/platsmp.c | 2 +-
arch/arm/mach-sunxi/platsmp.c | 4 ++--
arch/arm/mach-tango/platsmp.c | 2 +-
arch/arm/mach-tango/pm.c | 2 +-
arch/arm/mach-tegra/reset.c | 4 ++--
arch/arm/mach-ux500/platsmp.c | 2 +-
arch/arm/mach-vexpress/dcscb.c | 2 +-
arch/arm/mach-vexpress/platsmp.c | 2 +-
arch/arm/mach-vexpress/tc2_pm.c | 4 ++--
arch/arm/mach-zx/platsmp.c | 4 ++--
arch/arm/mach-zynq/platsmp.c | 2 +-
54 files changed, 84 insertions(+), 84 deletions(-)
diff --git a/arch/arm/common/mcpm_entry.c b/arch/arm/common/mcpm_entry.c
index a923524d1040..cf062472e07b 100644
--- a/arch/arm/common/mcpm_entry.c
+++ b/arch/arm/common/mcpm_entry.c
@@ -144,7 +144,7 @@ extern unsigned long mcpm_entry_vectors[MAX_NR_CLUSTERS][MAX_CPUS_PER_CLUSTER];
void mcpm_set_entry_vector(unsigned cpu, unsigned cluster, void *ptr)
{
- unsigned long val = ptr ? virt_to_phys(ptr) : 0;
+ unsigned long val = ptr ? __pa_symbol(ptr) : 0;
mcpm_entry_vectors[cluster][cpu] = val;
sync_cache_w(&mcpm_entry_vectors[cluster][cpu]);
}
@@ -299,8 +299,8 @@ void mcpm_cpu_power_down(void)
* the kernel as if the power_up method just had deasserted reset
* on the CPU.
*/
- phys_reset = (phys_reset_t)(unsigned long)virt_to_phys(cpu_reset);
- phys_reset(virt_to_phys(mcpm_entry_point));
+ phys_reset = (phys_reset_t)(unsigned long)__pa_symbol(cpu_reset);
+ phys_reset(__pa_symbol(mcpm_entry_point));
/* should never get here */
BUG();
@@ -388,8 +388,8 @@ static int __init nocache_trampoline(unsigned long _arg)
__mcpm_outbound_leave_critical(cluster, CLUSTER_DOWN);
__mcpm_cpu_down(cpu, cluster);
- phys_reset = (phys_reset_t)(unsigned long)virt_to_phys(cpu_reset);
- phys_reset(virt_to_phys(mcpm_entry_point));
+ phys_reset = (phys_reset_t)(unsigned long)__pa_symbol(cpu_reset);
+ phys_reset(__pa_symbol(mcpm_entry_point));
BUG();
}
@@ -449,7 +449,7 @@ int __init mcpm_sync_init(
sync_cache_w(&mcpm_sync);
if (power_up_setup) {
- mcpm_power_up_setup_phys = virt_to_phys(power_up_setup);
+ mcpm_power_up_setup_phys = __pa_symbol(power_up_setup);
sync_cache_w(&mcpm_power_up_setup_phys);
}
diff --git a/arch/arm/mach-alpine/platsmp.c b/arch/arm/mach-alpine/platsmp.c
index dd77ea25e7ca..6dc6d491f88a 100644
--- a/arch/arm/mach-alpine/platsmp.c
+++ b/arch/arm/mach-alpine/platsmp.c
@@ -27,7 +27,7 @@ static int alpine_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
phys_addr_t addr;
- addr = virt_to_phys(secondary_startup);
+ addr = __pa_symbol(secondary_startup);
if (addr > (phys_addr_t)(uint32_t)(-1)) {
pr_err("FAIL: resume address over 32bit (%pa)", &addr);
diff --git a/arch/arm/mach-axxia/platsmp.c b/arch/arm/mach-axxia/platsmp.c
index ffbd71d45008..502e3df69f69 100644
--- a/arch/arm/mach-axxia/platsmp.c
+++ b/arch/arm/mach-axxia/platsmp.c
@@ -25,7 +25,7 @@
static void write_release_addr(u32 release_phys)
{
u32 *virt = (u32 *) phys_to_virt(release_phys);
- writel_relaxed(virt_to_phys(secondary_startup), virt);
+ writel_relaxed(__pa_symbol(secondary_startup), virt);
/* Make sure this store is visible to other CPUs */
smp_wmb();
__cpuc_flush_dcache_area(virt, sizeof(u32));
diff --git a/arch/arm/mach-bcm/bcm63xx_smp.c b/arch/arm/mach-bcm/bcm63xx_smp.c
index 9b6727ed68cd..f5fb10b4376f 100644
--- a/arch/arm/mach-bcm/bcm63xx_smp.c
+++ b/arch/arm/mach-bcm/bcm63xx_smp.c
@@ -135,7 +135,7 @@ static int bcm63138_smp_boot_secondary(unsigned int cpu,
}
/* Write the secondary init routine to the BootLUT reset vector */
- val = virt_to_phys(secondary_startup);
+ val = __pa_symbol(secondary_startup);
writel_relaxed(val, bootlut_base + BOOTLUT_RESET_VECT);
/* Power up the core, will jump straight to its reset vector when we
diff --git a/arch/arm/mach-bcm/platsmp-brcmstb.c b/arch/arm/mach-bcm/platsmp-brcmstb.c
index 40dc8448445e..12379960e982 100644
--- a/arch/arm/mach-bcm/platsmp-brcmstb.c
+++ b/arch/arm/mach-bcm/platsmp-brcmstb.c
@@ -151,7 +151,7 @@ static void brcmstb_cpu_boot(u32 cpu)
* Set the reset vector to point to the secondary_startup
* routine
*/
- cpu_set_boot_addr(cpu, virt_to_phys(secondary_startup));
+ cpu_set_boot_addr(cpu, __pa_symbol(secondary_startup));
/* Unhalt the cpu */
cpu_rst_cfg_set(cpu, 0);
diff --git a/arch/arm/mach-bcm/platsmp.c b/arch/arm/mach-bcm/platsmp.c
index 3ac3a9bc663c..582886d0d02f 100644
--- a/arch/arm/mach-bcm/platsmp.c
+++ b/arch/arm/mach-bcm/platsmp.c
@@ -116,7 +116,7 @@ static int nsp_write_lut(unsigned int cpu)
return -ENOMEM;
}
- secondary_startup_phy = virt_to_phys(secondary_startup);
+ secondary_startup_phy = __pa_symbol(secondary_startup);
BUG_ON(secondary_startup_phy > (phys_addr_t)U32_MAX);
writel_relaxed(secondary_startup_phy, sku_rom_lut);
@@ -189,7 +189,7 @@ static int kona_boot_secondary(unsigned int cpu, struct task_struct *idle)
* Secondary cores will start in secondary_startup(),
* defined in "arch/arm/kernel/head.S"
*/
- boot_func = virt_to_phys(secondary_startup);
+ boot_func = __pa_symbol(secondary_startup);
BUG_ON(boot_func & BOOT_ADDR_CPUID_MASK);
BUG_ON(boot_func > (phys_addr_t)U32_MAX);
diff --git a/arch/arm/mach-berlin/platsmp.c b/arch/arm/mach-berlin/platsmp.c
index 93f90688db18..1167b0ed92c8 100644
--- a/arch/arm/mach-berlin/platsmp.c
+++ b/arch/arm/mach-berlin/platsmp.c
@@ -92,7 +92,7 @@ static void __init berlin_smp_prepare_cpus(unsigned int max_cpus)
* Write the secondary startup address into the SW reset address
* vector. This is used by boot_inst.
*/
- writel(virt_to_phys(secondary_startup), vectors_base + SW_RESET_ADDR);
+ writel(__pa_symbol(secondary_startup), vectors_base + SW_RESET_ADDR);
iounmap(vectors_base);
unmap_scu:
diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c
index fd6da5419b51..e81a78b125d9 100644
--- a/arch/arm/mach-exynos/firmware.c
+++ b/arch/arm/mach-exynos/firmware.c
@@ -41,7 +41,7 @@ static int exynos_do_idle(unsigned long mode)
case FW_DO_IDLE_AFTR:
if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9)
exynos_save_cp15();
- writel_relaxed(virt_to_phys(exynos_cpu_resume_ns),
+ writel_relaxed(__pa_symbol(exynos_cpu_resume_ns),
sysram_ns_base_addr + 0x24);
writel_relaxed(EXYNOS_AFTR_MAGIC, sysram_ns_base_addr + 0x20);
if (soc_is_exynos3250()) {
@@ -135,7 +135,7 @@ static int exynos_suspend(void)
exynos_save_cp15();
writel(EXYNOS_SLEEP_MAGIC, sysram_ns_base_addr + EXYNOS_BOOT_FLAG);
- writel(virt_to_phys(exynos_cpu_resume_ns),
+ writel(__pa_symbol(exynos_cpu_resume_ns),
sysram_ns_base_addr + EXYNOS_BOOT_ADDR);
return cpu_suspend(0, exynos_cpu_suspend);
diff --git a/arch/arm/mach-exynos/mcpm-exynos.c b/arch/arm/mach-exynos/mcpm-exynos.c
index f086bf615b29..214a9cfa92e9 100644
--- a/arch/arm/mach-exynos/mcpm-exynos.c
+++ b/arch/arm/mach-exynos/mcpm-exynos.c
@@ -221,7 +221,7 @@ static void exynos_mcpm_setup_entry_point(void)
*/
__raw_writel(0xe59f0000, ns_sram_base_addr); /* ldr r0, [pc, #0] */
__raw_writel(0xe12fff10, ns_sram_base_addr + 4); /* bx r0 */
- __raw_writel(virt_to_phys(mcpm_entry_point), ns_sram_base_addr + 8);
+ __raw_writel(__pa_symbol(mcpm_entry_point), ns_sram_base_addr + 8);
}
static struct syscore_ops exynos_mcpm_syscore_ops = {
diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c
index 98ffe1e62ad5..9f4949f7ed88 100644
--- a/arch/arm/mach-exynos/platsmp.c
+++ b/arch/arm/mach-exynos/platsmp.c
@@ -353,7 +353,7 @@ static int exynos_boot_secondary(unsigned int cpu, struct task_struct *idle)
smp_rmb();
- boot_addr = virt_to_phys(exynos4_secondary_startup);
+ boot_addr = __pa_symbol(exynos4_secondary_startup);
ret = exynos_set_boot_addr(core_id, boot_addr);
if (ret)
@@ -443,7 +443,7 @@ static void __init exynos_smp_prepare_cpus(unsigned int max_cpus)
mpidr = cpu_logical_map(i);
core_id = MPIDR_AFFINITY_LEVEL(mpidr, 0);
- boot_addr = virt_to_phys(exynos4_secondary_startup);
+ boot_addr = __pa_symbol(exynos4_secondary_startup);
ret = exynos_set_boot_addr(core_id, boot_addr);
if (ret)
diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c
index 487295f4a56b..1a7e5b5d08d8 100644
--- a/arch/arm/mach-exynos/pm.c
+++ b/arch/arm/mach-exynos/pm.c
@@ -132,7 +132,7 @@ static void exynos_set_wakeupmask(long mask)
static void exynos_cpu_set_boot_vector(long flags)
{
- writel_relaxed(virt_to_phys(exynos_cpu_resume),
+ writel_relaxed(__pa_symbol(exynos_cpu_resume),
exynos_boot_vector_addr());
writel_relaxed(flags, exynos_boot_vector_flag());
}
@@ -238,7 +238,7 @@ static int exynos_cpu0_enter_aftr(void)
abort:
if (cpu_online(1)) {
- unsigned long boot_addr = virt_to_phys(exynos_cpu_resume);
+ unsigned long boot_addr = __pa_symbol(exynos_cpu_resume);
/*
* Set the boot vector to something non-zero
@@ -330,7 +330,7 @@ static int exynos_cpu1_powerdown(void)
static void exynos_pre_enter_aftr(void)
{
- unsigned long boot_addr = virt_to_phys(exynos_cpu_resume);
+ unsigned long boot_addr = __pa_symbol(exynos_cpu_resume);
(void)exynos_set_boot_addr(1, boot_addr);
}
diff --git a/arch/arm/mach-exynos/suspend.c b/arch/arm/mach-exynos/suspend.c
index 06332f626565..97765be2cc12 100644
--- a/arch/arm/mach-exynos/suspend.c
+++ b/arch/arm/mach-exynos/suspend.c
@@ -344,7 +344,7 @@ static void exynos_pm_prepare(void)
exynos_pm_enter_sleep_mode();
/* ensure at least INFORM0 has the resume address */
- pmu_raw_writel(virt_to_phys(exynos_cpu_resume), S5P_INFORM0);
+ pmu_raw_writel(__pa_symbol(exynos_cpu_resume), S5P_INFORM0);
}
static void exynos3250_pm_prepare(void)
@@ -361,7 +361,7 @@ static void exynos3250_pm_prepare(void)
exynos_pm_enter_sleep_mode();
/* ensure at least INFORM0 has the resume address */
- pmu_raw_writel(virt_to_phys(exynos_cpu_resume), S5P_INFORM0);
+ pmu_raw_writel(__pa_symbol(exynos_cpu_resume), S5P_INFORM0);
}
static void exynos5420_pm_prepare(void)
@@ -386,7 +386,7 @@ static void exynos5420_pm_prepare(void)
/* ensure at least INFORM0 has the resume address */
if (IS_ENABLED(CONFIG_EXYNOS5420_MCPM))
- pmu_raw_writel(virt_to_phys(mcpm_entry_point), S5P_INFORM0);
+ pmu_raw_writel(__pa_symbol(mcpm_entry_point), S5P_INFORM0);
tmp = pmu_raw_readl(EXYNOS5_ARM_L2_OPTION);
tmp &= ~EXYNOS5_USE_RETENTION;
diff --git a/arch/arm/mach-hisi/platmcpm.c b/arch/arm/mach-hisi/platmcpm.c
index 4b653a8cb75c..a6c117622d67 100644
--- a/arch/arm/mach-hisi/platmcpm.c
+++ b/arch/arm/mach-hisi/platmcpm.c
@@ -327,7 +327,7 @@ static int __init hip04_smp_init(void)
*/
writel_relaxed(hip04_boot_method[0], relocation);
writel_relaxed(0xa5a5a5a5, relocation + 4); /* magic number */
- writel_relaxed(virt_to_phys(secondary_startup), relocation + 8);
+ writel_relaxed(__pa_symbol(secondary_startup), relocation + 8);
writel_relaxed(0, relocation + 12);
iounmap(relocation);
diff --git a/arch/arm/mach-hisi/platsmp.c b/arch/arm/mach-hisi/platsmp.c
index e1d67648d5d0..91bb02dec20f 100644
--- a/arch/arm/mach-hisi/platsmp.c
+++ b/arch/arm/mach-hisi/platsmp.c
@@ -28,7 +28,7 @@ void hi3xxx_set_cpu_jump(int cpu, void *jump_addr)
cpu = cpu_logical_map(cpu);
if (!cpu || !ctrl_base)
return;
- writel_relaxed(virt_to_phys(jump_addr), ctrl_base + ((cpu - 1) << 2));
+ writel_relaxed(__pa_symbol(jump_addr), ctrl_base + ((cpu - 1) << 2));
}
int hi3xxx_get_cpu_jump(int cpu)
@@ -118,7 +118,7 @@ static int hix5hd2_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
phys_addr_t jumpaddr;
- jumpaddr = virt_to_phys(secondary_startup);
+ jumpaddr = __pa_symbol(secondary_startup);
hix5hd2_set_scu_boot_addr(HIX5HD2_BOOT_ADDRESS, jumpaddr);
hix5hd2_set_cpu(cpu, true);
arch_send_wakeup_ipi_mask(cpumask_of(cpu));
@@ -156,7 +156,7 @@ static int hip01_boot_secondary(unsigned int cpu, struct task_struct *idle)
struct device_node *node;
- jumpaddr = virt_to_phys(secondary_startup);
+ jumpaddr = __pa_symbol(secondary_startup);
hip01_set_boot_addr(HIP01_BOOT_ADDRESS, jumpaddr);
node = of_find_compatible_node(NULL, NULL, "hisilicon,hip01-sysctrl");
diff --git a/arch/arm/mach-imx/platsmp.c b/arch/arm/mach-imx/platsmp.c
index 711dbbd5badd..c2d1b329fba1 100644
--- a/arch/arm/mach-imx/platsmp.c
+++ b/arch/arm/mach-imx/platsmp.c
@@ -117,7 +117,7 @@ static void __init ls1021a_smp_prepare_cpus(unsigned int max_cpus)
dcfg_base = of_iomap(np, 0);
BUG_ON(!dcfg_base);
- paddr = virt_to_phys(secondary_startup);
+ paddr = __pa_symbol(secondary_startup);
writel_relaxed(cpu_to_be32(paddr), dcfg_base + DCFG_CCSR_SCRATCHRW1);
iounmap(dcfg_base);
diff --git a/arch/arm/mach-imx/pm-imx6.c b/arch/arm/mach-imx/pm-imx6.c
index 1515e498d348..e61b1d1027e1 100644
--- a/arch/arm/mach-imx/pm-imx6.c
+++ b/arch/arm/mach-imx/pm-imx6.c
@@ -499,7 +499,7 @@ static int __init imx6q_suspend_init(const struct imx6_pm_socdata *socdata)
memset(suspend_ocram_base, 0, sizeof(*pm_info));
pm_info = suspend_ocram_base;
pm_info->pbase = ocram_pbase;
- pm_info->resume_addr = virt_to_phys(v7_cpu_resume);
+ pm_info->resume_addr = __pa_symbol(v7_cpu_resume);
pm_info->pm_info_size = sizeof(*pm_info);
/*
diff --git a/arch/arm/mach-imx/src.c b/arch/arm/mach-imx/src.c
index 70b083fe934a..495d85d0fe7e 100644
--- a/arch/arm/mach-imx/src.c
+++ b/arch/arm/mach-imx/src.c
@@ -99,7 +99,7 @@ void imx_enable_cpu(int cpu, bool enable)
void imx_set_cpu_jump(int cpu, void *jump_addr)
{
cpu = cpu_logical_map(cpu);
- writel_relaxed(virt_to_phys(jump_addr),
+ writel_relaxed(__pa_symbol(jump_addr),
src_base + SRC_GPR1 + cpu * 8);
}
diff --git a/arch/arm/mach-mediatek/platsmp.c b/arch/arm/mach-mediatek/platsmp.c
index b821e34474b6..726eb69bb655 100644
--- a/arch/arm/mach-mediatek/platsmp.c
+++ b/arch/arm/mach-mediatek/platsmp.c
@@ -122,7 +122,7 @@ static void __init __mtk_smp_prepare_cpus(unsigned int max_cpus, int trustzone)
* write the address of slave startup address into the system-wide
* jump register
*/
- writel_relaxed(virt_to_phys(secondary_startup_arm),
+ writel_relaxed(__pa_symbol(secondary_startup_arm),
mtk_smp_base + mtk_smp_info->jump_reg);
}
diff --git a/arch/arm/mach-mvebu/pm.c b/arch/arm/mach-mvebu/pm.c
index 2990c5269b18..c487be61d6d8 100644
--- a/arch/arm/mach-mvebu/pm.c
+++ b/arch/arm/mach-mvebu/pm.c
@@ -110,7 +110,7 @@ static void mvebu_pm_store_armadaxp_bootinfo(u32 *store_addr)
{
phys_addr_t resume_pc;
- resume_pc = virt_to_phys(armada_370_xp_cpu_resume);
+ resume_pc = __pa_symbol(armada_370_xp_cpu_resume);
/*
* The bootloader expects the first two words to be a magic
diff --git a/arch/arm/mach-mvebu/pmsu.c b/arch/arm/mach-mvebu/pmsu.c
index f39bd51bce18..27a78c80e5b1 100644
--- a/arch/arm/mach-mvebu/pmsu.c
+++ b/arch/arm/mach-mvebu/pmsu.c
@@ -112,7 +112,7 @@ static const struct of_device_id of_pmsu_table[] = {
void mvebu_pmsu_set_cpu_boot_addr(int hw_cpu, void *boot_addr)
{
- writel(virt_to_phys(boot_addr), pmsu_mp_base +
+ writel(__pa_symbol(boot_addr), pmsu_mp_base +
PMSU_BOOT_ADDR_REDIRECT_OFFSET(hw_cpu));
}
diff --git a/arch/arm/mach-mvebu/system-controller.c b/arch/arm/mach-mvebu/system-controller.c
index 76cbc82a7407..04d9ebe6a90a 100644
--- a/arch/arm/mach-mvebu/system-controller.c
+++ b/arch/arm/mach-mvebu/system-controller.c
@@ -153,7 +153,7 @@ void mvebu_system_controller_set_cpu_boot_addr(void *boot_addr)
if (of_machine_is_compatible("marvell,armada375"))
mvebu_armada375_smp_wa_init();
- writel(virt_to_phys(boot_addr), system_controller_base +
+ writel(__pa_symbol(boot_addr), system_controller_base +
mvebu_sc->resume_boot_addr);
}
#endif
diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c
index 1662071bb2cc..bd8089ff929f 100644
--- a/arch/arm/mach-omap2/control.c
+++ b/arch/arm/mach-omap2/control.c
@@ -315,15 +315,15 @@ void omap3_save_scratchpad_contents(void)
scratchpad_contents.boot_config_ptr = 0x0;
if (cpu_is_omap3630())
scratchpad_contents.public_restore_ptr =
- virt_to_phys(omap3_restore_3630);
+ __pa_symbol(omap3_restore_3630);
else if (omap_rev() != OMAP3430_REV_ES3_0 &&
omap_rev() != OMAP3430_REV_ES3_1 &&
omap_rev() != OMAP3430_REV_ES3_1_2)
scratchpad_contents.public_restore_ptr =
- virt_to_phys(omap3_restore);
+ __pa_symbol(omap3_restore);
else
scratchpad_contents.public_restore_ptr =
- virt_to_phys(omap3_restore_es3);
+ __pa_symbol(omap3_restore_es3);
if (omap_type() == OMAP2_DEVICE_TYPE_GP)
scratchpad_contents.secure_ram_restore_ptr = 0x0;
@@ -395,7 +395,7 @@ void omap3_save_scratchpad_contents(void)
sdrc_block_contents.flags = 0x0;
sdrc_block_contents.block_size = 0x0;
- arm_context_addr = virt_to_phys(omap3_arm_context);
+ arm_context_addr = __pa_symbol(omap3_arm_context);
/* Copy all the contents to the scratchpad location */
scratchpad_address = OMAP2_L4_IO_ADDRESS(OMAP343X_SCRATCHPAD);
diff --git a/arch/arm/mach-omap2/omap-mpuss-lowpower.c b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
index ad982465efd0..d1e03c03219e 100644
--- a/arch/arm/mach-omap2/omap-mpuss-lowpower.c
+++ b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
@@ -273,7 +273,7 @@ int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state)
cpu_clear_prev_logic_pwrst(cpu);
pwrdm_set_next_pwrst(pm_info->pwrdm, power_state);
pwrdm_set_logic_retst(pm_info->pwrdm, cpu_logic_state);
- set_cpu_wakeup_addr(cpu, virt_to_phys(omap_pm_ops.resume));
+ set_cpu_wakeup_addr(cpu, __pa_symbol(omap_pm_ops.resume));
omap_pm_ops.scu_prepare(cpu, power_state);
l2x0_pwrst_prepare(cpu, save_state);
@@ -325,7 +325,7 @@ int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state)
pwrdm_clear_all_prev_pwrst(pm_info->pwrdm);
pwrdm_set_next_pwrst(pm_info->pwrdm, power_state);
- set_cpu_wakeup_addr(cpu, virt_to_phys(omap_pm_ops.hotplug_restart));
+ set_cpu_wakeup_addr(cpu, __pa_symbol(omap_pm_ops.hotplug_restart));
omap_pm_ops.scu_prepare(cpu, power_state);
/*
@@ -459,9 +459,9 @@ void __init omap4_mpuss_early_init(void)
sar_base = omap4_get_sar_ram_base();
if (cpu_is_omap443x())
- startup_pa = virt_to_phys(omap4_secondary_startup);
+ startup_pa = __pa_symbol(omap4_secondary_startup);
else
- startup_pa = virt_to_phys(omap4460_secondary_startup);
+ startup_pa = __pa_symbol(omap4460_secondary_startup);
writel_relaxed(startup_pa, sar_base + CPU1_WAKEUP_NS_PA_ADDR_OFFSET);
}
diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c
index b4de3da6dffa..003353b0b794 100644
--- a/arch/arm/mach-omap2/omap-smp.c
+++ b/arch/arm/mach-omap2/omap-smp.c
@@ -316,9 +316,9 @@ static void __init omap4_smp_prepare_cpus(unsigned int max_cpus)
* A barrier is added to ensure that write buffer is drained
*/
if (omap_secure_apis_support())
- omap_auxcoreboot_addr(virt_to_phys(cfg.startup_addr));
+ omap_auxcoreboot_addr(__pa_symbol(cfg.startup_addr));
else
- writel_relaxed(virt_to_phys(cfg.startup_addr),
+ writel_relaxed(__pa_symbol(cfg.startup_addr),
base + OMAP_AUX_CORE_BOOT_1);
}
diff --git a/arch/arm/mach-prima2/platsmp.c b/arch/arm/mach-prima2/platsmp.c
index 0875b99add18..75ef5d4be554 100644
--- a/arch/arm/mach-prima2/platsmp.c
+++ b/arch/arm/mach-prima2/platsmp.c
@@ -65,7 +65,7 @@ static int sirfsoc_boot_secondary(unsigned int cpu, struct task_struct *idle)
* waiting for. This would wake up the secondary core from WFE
*/
#define SIRFSOC_CPU1_JUMPADDR_OFFSET 0x2bc
- __raw_writel(virt_to_phys(sirfsoc_secondary_startup),
+ __raw_writel(__pa_symbol(sirfsoc_secondary_startup),
clk_base + SIRFSOC_CPU1_JUMPADDR_OFFSET);
#define SIRFSOC_CPU1_WAKEMAGIC_OFFSET 0x2b8
diff --git a/arch/arm/mach-prima2/pm.c b/arch/arm/mach-prima2/pm.c
index 83e94c95e314..b0bcf1ff02dd 100644
--- a/arch/arm/mach-prima2/pm.c
+++ b/arch/arm/mach-prima2/pm.c
@@ -54,7 +54,7 @@ static void sirfsoc_set_sleep_mode(u32 mode)
static int sirfsoc_pre_suspend_power_off(void)
{
- u32 wakeup_entry = virt_to_phys(cpu_resume);
+ u32 wakeup_entry = __pa_symbol(cpu_resume);
sirfsoc_rtc_iobrg_writel(wakeup_entry, sirfsoc_pwrc_base +
SIRFSOC_PWRC_SCRATCH_PAD1);
diff --git a/arch/arm/mach-pxa/palmz72.c b/arch/arm/mach-pxa/palmz72.c
index 9c308de158c6..29630061e700 100644
--- a/arch/arm/mach-pxa/palmz72.c
+++ b/arch/arm/mach-pxa/palmz72.c
@@ -249,7 +249,7 @@ static int palmz72_pm_suspend(void)
store_ptr = *PALMZ72_SAVE_DWORD;
/* Setting PSPR to a proper value */
- PSPR = virt_to_phys(&palmz72_resume_info);
+ PSPR = __pa_symbol(&palmz72_resume_info);
return 0;
}
diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index 12b94357fbc1..d16ffcab0e45 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -85,7 +85,7 @@ static void pxa25x_cpu_pm_enter(suspend_state_t state)
static int pxa25x_cpu_pm_prepare(void)
{
/* set resume return address */
- PSPR = virt_to_phys(cpu_resume);
+ PSPR = __pa_symbol(cpu_resume);
return 0;
}
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index c0185c5c5a08..9b69be4e9fe3 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -168,7 +168,7 @@ static int pxa27x_cpu_pm_valid(suspend_state_t state)
static int pxa27x_cpu_pm_prepare(void)
{
/* set resume return address */
- PSPR = virt_to_phys(cpu_resume);
+ PSPR = __pa_symbol(cpu_resume);
return 0;
}
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index 87acc96388c7..0cc9f124c9ac 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -123,7 +123,7 @@ static void pxa3xx_cpu_pm_suspend(void)
PSPR = 0x5c014000;
/* overwrite with the resume address */
- *p = virt_to_phys(cpu_resume);
+ *p = __pa_symbol(cpu_resume);
cpu_suspend(0, pxa3xx_finish_suspend);
diff --git a/arch/arm/mach-realview/platsmp-dt.c b/arch/arm/mach-realview/platsmp-dt.c
index 70ca99eb52c6..2edd1715bd94 100644
--- a/arch/arm/mach-realview/platsmp-dt.c
+++ b/arch/arm/mach-realview/platsmp-dt.c
@@ -76,7 +76,7 @@ static void __init realview_smp_prepare_cpus(unsigned int max_cpus)
}
/* Put the boot address in this magic register */
regmap_write(map, REALVIEW_SYS_FLAGSSET_OFFSET,
- virt_to_phys(versatile_secondary_startup));
+ __pa_symbol((versatile_secondary_startup));)
}
static const struct smp_operations realview_dt_smp_ops __initconst = {
diff --git a/arch/arm/mach-rockchip/platsmp.c b/arch/arm/mach-rockchip/platsmp.c
index 4d827a069d49..3abafdbdd7f4 100644
--- a/arch/arm/mach-rockchip/platsmp.c
+++ b/arch/arm/mach-rockchip/platsmp.c
@@ -156,7 +156,7 @@ static int rockchip_boot_secondary(unsigned int cpu, struct task_struct *idle)
*/
mdelay(1); /* ensure the cpus other than cpu0 to startup */
- writel(virt_to_phys(secondary_startup), sram_base_addr + 8);
+ writel(__pa_symbol(secondary_startup), sram_base_addr + 8);
writel(0xDEADBEAF, sram_base_addr + 4);
dsb_sev();
}
@@ -195,7 +195,7 @@ static int __init rockchip_smp_prepare_sram(struct device_node *node)
}
/* set the boot function for the sram code */
- rockchip_boot_fn = virt_to_phys(secondary_startup);
+ rockchip_boot_fn = __pa_symbol(secondary_startup);
/* copy the trampoline to sram, that runs during startup of the core */
memcpy(sram_base_addr, &rockchip_secondary_trampoline, trampoline_sz);
diff --git a/arch/arm/mach-rockchip/pm.c b/arch/arm/mach-rockchip/pm.c
index bee8c8051929..0592534e0b88 100644
--- a/arch/arm/mach-rockchip/pm.c
+++ b/arch/arm/mach-rockchip/pm.c
@@ -62,7 +62,7 @@ static inline u32 rk3288_l2_config(void)
static void rk3288_config_bootdata(void)
{
rkpm_bootdata_cpusp = rk3288_bootram_phy + (SZ_4K - 8);
- rkpm_bootdata_cpu_code = virt_to_phys(cpu_resume);
+ rkpm_bootdata_cpu_code = __pa_symbol(cpu_resume);
rkpm_bootdata_l2ctlr_f = 1;
rkpm_bootdata_l2ctlr = rk3288_l2_config();
diff --git a/arch/arm/mach-s3c24xx/mach-jive.c b/arch/arm/mach-s3c24xx/mach-jive.c
index 7d99fe8f6157..4f2ffca88e6c 100644
--- a/arch/arm/mach-s3c24xx/mach-jive.c
+++ b/arch/arm/mach-s3c24xx/mach-jive.c
@@ -483,7 +483,7 @@ static int jive_pm_suspend(void)
* correct address to resume from. */
__raw_writel(0x2BED, S3C2412_INFORM0);
- __raw_writel(virt_to_phys(s3c_cpu_resume), S3C2412_INFORM1);
+ __raw_writel(__pa_symbol(s3c_cpu_resume), S3C2412_INFORM1);
return 0;
}
diff --git a/arch/arm/mach-s3c24xx/pm-s3c2410.c b/arch/arm/mach-s3c24xx/pm-s3c2410.c
index 20e481d8a33a..a4588daeddb0 100644
--- a/arch/arm/mach-s3c24xx/pm-s3c2410.c
+++ b/arch/arm/mach-s3c24xx/pm-s3c2410.c
@@ -45,7 +45,7 @@ static void s3c2410_pm_prepare(void)
{
/* ensure at least GSTATUS3 has the resume address */
- __raw_writel(virt_to_phys(s3c_cpu_resume), S3C2410_GSTATUS3);
+ __raw_writel(__pa_symbol(s3c_cpu_resume), S3C2410_GSTATUS3);
S3C_PMDBG("GSTATUS3 0x%08x\n", __raw_readl(S3C2410_GSTATUS3));
S3C_PMDBG("GSTATUS4 0x%08x\n", __raw_readl(S3C2410_GSTATUS4));
diff --git a/arch/arm/mach-s3c24xx/pm-s3c2416.c b/arch/arm/mach-s3c24xx/pm-s3c2416.c
index c0e328e37bd6..b5bbf0d5985c 100644
--- a/arch/arm/mach-s3c24xx/pm-s3c2416.c
+++ b/arch/arm/mach-s3c24xx/pm-s3c2416.c
@@ -48,7 +48,7 @@ static void s3c2416_pm_prepare(void)
* correct address to resume from.
*/
__raw_writel(0x2BED, S3C2412_INFORM0);
- __raw_writel(virt_to_phys(s3c_cpu_resume), S3C2412_INFORM1);
+ __raw_writel(__pa_symbol(s3c_cpu_resume), S3C2412_INFORM1);
}
static int s3c2416_pm_add(struct device *dev, struct subsys_interface *sif)
diff --git a/arch/arm/mach-s3c64xx/pm.c b/arch/arm/mach-s3c64xx/pm.c
index 59d91b83b03d..945a9d1e1a71 100644
--- a/arch/arm/mach-s3c64xx/pm.c
+++ b/arch/arm/mach-s3c64xx/pm.c
@@ -304,7 +304,7 @@ static void s3c64xx_pm_prepare(void)
wake_irqs, ARRAY_SIZE(wake_irqs));
/* store address of resume. */
- __raw_writel(virt_to_phys(s3c_cpu_resume), S3C64XX_INFORM0);
+ __raw_writel(__pa_symbol(s3c_cpu_resume), S3C64XX_INFORM0);
/* ensure previous wakeup state is cleared before sleeping */
__raw_writel(__raw_readl(S3C64XX_WAKEUP_STAT), S3C64XX_WAKEUP_STAT);
diff --git a/arch/arm/mach-s5pv210/pm.c b/arch/arm/mach-s5pv210/pm.c
index 21b4b13c5ab7..2d5f08015e34 100644
--- a/arch/arm/mach-s5pv210/pm.c
+++ b/arch/arm/mach-s5pv210/pm.c
@@ -69,7 +69,7 @@ static void s5pv210_pm_prepare(void)
__raw_writel(s5pv210_irqwake_intmask, S5P_WAKEUP_MASK);
/* ensure at least INFORM0 has the resume address */
- __raw_writel(virt_to_phys(s5pv210_cpu_resume), S5P_INFORM0);
+ __raw_writel(__pa_symbol(s5pv210_cpu_resume), S5P_INFORM0);
tmp = __raw_readl(S5P_SLEEP_CFG);
tmp &= ~(S5P_SLEEP_CFG_OSC_EN | S5P_SLEEP_CFG_USBOSC_EN);
diff --git a/arch/arm/mach-sa1100/pm.c b/arch/arm/mach-sa1100/pm.c
index 34853d5dfda2..9a7079f565bd 100644
--- a/arch/arm/mach-sa1100/pm.c
+++ b/arch/arm/mach-sa1100/pm.c
@@ -73,7 +73,7 @@ static int sa11x0_pm_enter(suspend_state_t state)
RCSR = RCSR_HWR | RCSR_SWR | RCSR_WDR | RCSR_SMR;
/* set resume return address */
- PSPR = virt_to_phys(cpu_resume);
+ PSPR = __pa_symbol(cpu_resume);
/* go zzz */
cpu_suspend(0, sa1100_finish_suspend);
diff --git a/arch/arm/mach-shmobile/platsmp-apmu.c b/arch/arm/mach-shmobile/platsmp-apmu.c
index 0c6bb458b7a4..71729b8d1900 100644
--- a/arch/arm/mach-shmobile/platsmp-apmu.c
+++ b/arch/arm/mach-shmobile/platsmp-apmu.c
@@ -171,7 +171,7 @@ static void apmu_parse_dt(void (*fn)(struct resource *res, int cpu, int bit))
static void __init shmobile_smp_apmu_setup_boot(void)
{
/* install boot code shared by all CPUs */
- shmobile_boot_fn = virt_to_phys(shmobile_smp_boot);
+ shmobile_boot_fn = __pa_symbol(shmobile_smp_boot);
}
void __init shmobile_smp_apmu_prepare_cpus(unsigned int max_cpus,
@@ -185,7 +185,7 @@ void __init shmobile_smp_apmu_prepare_cpus(unsigned int max_cpus,
int shmobile_smp_apmu_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
/* For this particular CPU register boot vector */
- shmobile_smp_hook(cpu, virt_to_phys(secondary_startup), 0);
+ shmobile_smp_hook(cpu, __pa_symbol(secondary_startup), 0);
return apmu_wrap(cpu, apmu_power_on);
}
@@ -301,7 +301,7 @@ int shmobile_smp_apmu_cpu_kill(unsigned int cpu)
#if defined(CONFIG_SUSPEND)
static int shmobile_smp_apmu_do_suspend(unsigned long cpu)
{
- shmobile_smp_hook(cpu, virt_to_phys(cpu_resume), 0);
+ shmobile_smp_hook(cpu, __pa_symbol(cpu_resume), 0);
shmobile_smp_apmu_cpu_shutdown(cpu);
cpu_do_idle(); /* WFI selects Core Standby */
return 1;
diff --git a/arch/arm/mach-shmobile/platsmp-scu.c b/arch/arm/mach-shmobile/platsmp-scu.c
index d1ecaf37d142..f1a1efde4beb 100644
--- a/arch/arm/mach-shmobile/platsmp-scu.c
+++ b/arch/arm/mach-shmobile/platsmp-scu.c
@@ -24,7 +24,7 @@ static void __iomem *shmobile_scu_base;
static int shmobile_scu_cpu_prepare(unsigned int cpu)
{
/* For this particular CPU register SCU SMP boot vector */
- shmobile_smp_hook(cpu, virt_to_phys(shmobile_boot_scu),
+ shmobile_smp_hook(cpu, __pa_symbol(shmobile_boot_scu),
shmobile_scu_base_phys);
return 0;
}
@@ -33,7 +33,7 @@ void __init shmobile_smp_scu_prepare_cpus(phys_addr_t scu_base_phys,
unsigned int max_cpus)
{
/* install boot code shared by all CPUs */
- shmobile_boot_fn = virt_to_phys(shmobile_smp_boot);
+ shmobile_boot_fn = __pa_symbol(shmobile_smp_boot);
/* enable SCU and cache coherency on booting CPU */
shmobile_scu_base_phys = scu_base_phys;
diff --git a/arch/arm/mach-socfpga/platsmp.c b/arch/arm/mach-socfpga/platsmp.c
index 07945748b571..0ee76772b507 100644
--- a/arch/arm/mach-socfpga/platsmp.c
+++ b/arch/arm/mach-socfpga/platsmp.c
@@ -40,7 +40,7 @@ static int socfpga_boot_secondary(unsigned int cpu, struct task_struct *idle)
memcpy(phys_to_virt(0), &secondary_trampoline, trampoline_size);
- writel(virt_to_phys(secondary_startup),
+ writel(__pa_symbol(secondary_startup),
sys_manager_base_addr + (socfpga_cpu1start_addr & 0x000000ff));
flush_cache_all();
@@ -63,7 +63,7 @@ static int socfpga_a10_boot_secondary(unsigned int cpu, struct task_struct *idle
SOCFPGA_A10_RSTMGR_MODMPURST);
memcpy(phys_to_virt(0), &secondary_trampoline, trampoline_size);
- writel(virt_to_phys(secondary_startup),
+ writel(__pa_symbol(secondary_startup),
sys_manager_base_addr + (socfpga_cpu1start_addr & 0x00000fff));
flush_cache_all();
diff --git a/arch/arm/mach-spear/platsmp.c b/arch/arm/mach-spear/platsmp.c
index 8d1e2d551786..39038a03836a 100644
--- a/arch/arm/mach-spear/platsmp.c
+++ b/arch/arm/mach-spear/platsmp.c
@@ -117,7 +117,7 @@ static void __init spear13xx_smp_prepare_cpus(unsigned int max_cpus)
* (presently it is in SRAM). The BootMonitor waits until it receives a
* soft interrupt, and then the secondary CPU branches to this address.
*/
- __raw_writel(virt_to_phys(spear13xx_secondary_startup), SYS_LOCATION);
+ __raw_writel(__pa_symbol(spear13xx_secondary_startup), SYS_LOCATION);
}
const struct smp_operations spear13xx_smp_ops __initconst = {
diff --git a/arch/arm/mach-sti/platsmp.c b/arch/arm/mach-sti/platsmp.c
index ea5a2277ee46..231f19e17436 100644
--- a/arch/arm/mach-sti/platsmp.c
+++ b/arch/arm/mach-sti/platsmp.c
@@ -103,7 +103,7 @@ static void __init sti_smp_prepare_cpus(unsigned int max_cpus)
u32 __iomem *cpu_strt_ptr;
u32 release_phys;
int cpu;
- unsigned long entry_pa = virt_to_phys(sti_secondary_startup);
+ unsigned long entry_pa = __pa_symbol(sti_secondary_startup);
np = of_find_compatible_node(NULL, NULL, "arm,cortex-a9-scu");
diff --git a/arch/arm/mach-sunxi/platsmp.c b/arch/arm/mach-sunxi/platsmp.c
index 6642267812c9..8fb5088464db 100644
--- a/arch/arm/mach-sunxi/platsmp.c
+++ b/arch/arm/mach-sunxi/platsmp.c
@@ -80,7 +80,7 @@ static int sun6i_smp_boot_secondary(unsigned int cpu,
spin_lock(&cpu_lock);
/* Set CPU boot address */
- writel(virt_to_phys(secondary_startup),
+ writel(__pa_symbol(secondary_startup),
cpucfg_membase + CPUCFG_PRIVATE0_REG);
/* Assert the CPU core in reset */
@@ -162,7 +162,7 @@ static int sun8i_smp_boot_secondary(unsigned int cpu,
spin_lock(&cpu_lock);
/* Set CPU boot address */
- writel(virt_to_phys(secondary_startup),
+ writel(__pa_symbol(secondary_startup),
cpucfg_membase + CPUCFG_PRIVATE0_REG);
/* Assert the CPU core in reset */
diff --git a/arch/arm/mach-tango/platsmp.c b/arch/arm/mach-tango/platsmp.c
index 98c62a4a8623..2f0c6c050fed 100644
--- a/arch/arm/mach-tango/platsmp.c
+++ b/arch/arm/mach-tango/platsmp.c
@@ -5,7 +5,7 @@
static int tango_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
- tango_set_aux_boot_addr(virt_to_phys(secondary_startup));
+ tango_set_aux_boot_addr(__pa_symbol(secondary_startup));
tango_start_aux_core(cpu);
return 0;
}
diff --git a/arch/arm/mach-tango/pm.c b/arch/arm/mach-tango/pm.c
index b05c6d6f99d0..406c0814eb6e 100644
--- a/arch/arm/mach-tango/pm.c
+++ b/arch/arm/mach-tango/pm.c
@@ -5,7 +5,7 @@
static int tango_pm_powerdown(unsigned long arg)
{
- tango_suspend(virt_to_phys(cpu_resume));
+ tango_suspend(__pa_symbol(cpu_resume));
return -EIO; /* tango_suspend has failed */
}
diff --git a/arch/arm/mach-tegra/reset.c b/arch/arm/mach-tegra/reset.c
index 6fd9db54887e..dc558892753c 100644
--- a/arch/arm/mach-tegra/reset.c
+++ b/arch/arm/mach-tegra/reset.c
@@ -94,14 +94,14 @@ void __init tegra_cpu_reset_handler_init(void)
__tegra_cpu_reset_handler_data[TEGRA_RESET_MASK_PRESENT] =
*((u32 *)cpu_possible_mask);
__tegra_cpu_reset_handler_data[TEGRA_RESET_STARTUP_SECONDARY] =
- virt_to_phys((void *)secondary_startup);
+ __pa_symbol((void *)secondary_startup);
#endif
#ifdef CONFIG_PM_SLEEP
__tegra_cpu_reset_handler_data[TEGRA_RESET_STARTUP_LP1] =
TEGRA_IRAM_LPx_RESUME_AREA;
__tegra_cpu_reset_handler_data[TEGRA_RESET_STARTUP_LP2] =
- virt_to_phys((void *)tegra_resume);
+ __pa_symbol((void *)tegra_resume);
#endif
tegra_cpu_reset_handler_enable();
diff --git a/arch/arm/mach-ux500/platsmp.c b/arch/arm/mach-ux500/platsmp.c
index 8f2f615ff958..8c8f26389067 100644
--- a/arch/arm/mach-ux500/platsmp.c
+++ b/arch/arm/mach-ux500/platsmp.c
@@ -54,7 +54,7 @@ static void wakeup_secondary(void)
* backup ram register at offset 0x1FF0, which is what boot rom code
* is waiting for. This will wake up the secondary core from WFE.
*/
- writel(virt_to_phys(secondary_startup),
+ writel(__pa_symbol(secondary_startup),
backupram + UX500_CPU1_JUMPADDR_OFFSET);
writel(0xA1FEED01,
backupram + UX500_CPU1_WAKEMAGIC_OFFSET);
diff --git a/arch/arm/mach-vexpress/dcscb.c b/arch/arm/mach-vexpress/dcscb.c
index 5cedcf572104..ee2a0faafaa1 100644
--- a/arch/arm/mach-vexpress/dcscb.c
+++ b/arch/arm/mach-vexpress/dcscb.c
@@ -166,7 +166,7 @@ static int __init dcscb_init(void)
* Future entries into the kernel can now go
* through the cluster entry vectors.
*/
- vexpress_flags_set(virt_to_phys(mcpm_entry_point));
+ vexpress_flags_set(__pa_symbol(mcpm_entry_point));
return 0;
}
diff --git a/arch/arm/mach-vexpress/platsmp.c b/arch/arm/mach-vexpress/platsmp.c
index 8b8d0724f6c6..575588633a36 100644
--- a/arch/arm/mach-vexpress/platsmp.c
+++ b/arch/arm/mach-vexpress/platsmp.c
@@ -61,7 +61,7 @@ static void __init vexpress_smp_dt_prepare_cpus(unsigned int max_cpus)
* until it receives a soft interrupt, and then the
* secondary CPU branches to this address.
*/
- vexpress_flags_set(virt_to_phys(versatile_secondary_startup));
+ vexpress_flags_set(__pa_symbol(versatile_secondary_startup));
}
const struct smp_operations vexpress_smp_dt_ops __initconst = {
diff --git a/arch/arm/mach-vexpress/tc2_pm.c b/arch/arm/mach-vexpress/tc2_pm.c
index 1aa4ccece69f..9b5f3c427086 100644
--- a/arch/arm/mach-vexpress/tc2_pm.c
+++ b/arch/arm/mach-vexpress/tc2_pm.c
@@ -54,7 +54,7 @@ static int tc2_pm_cpu_powerup(unsigned int cpu, unsigned int cluster)
if (cluster >= TC2_CLUSTERS || cpu >= tc2_nr_cpus[cluster])
return -EINVAL;
ve_spc_set_resume_addr(cluster, cpu,
- virt_to_phys(mcpm_entry_point));
+ __pa_symbol(mcpm_entry_point));
ve_spc_cpu_wakeup_irq(cluster, cpu, true);
return 0;
}
@@ -159,7 +159,7 @@ static int tc2_pm_wait_for_powerdown(unsigned int cpu, unsigned int cluster)
static void tc2_pm_cpu_suspend_prepare(unsigned int cpu, unsigned int cluster)
{
- ve_spc_set_resume_addr(cluster, cpu, virt_to_phys(mcpm_entry_point));
+ ve_spc_set_resume_addr(cluster, cpu, __pa_symbol(mcpm_entry_point));
}
static void tc2_pm_cpu_is_up(unsigned int cpu, unsigned int cluster)
diff --git a/arch/arm/mach-zx/platsmp.c b/arch/arm/mach-zx/platsmp.c
index 0297f92084e0..a316db478250 100644
--- a/arch/arm/mach-zx/platsmp.c
+++ b/arch/arm/mach-zx/platsmp.c
@@ -76,7 +76,7 @@ void __init zx_smp_prepare_cpus(unsigned int max_cpus)
* until it receives a soft interrupt, and then the
* secondary CPU branches to this address.
*/
- __raw_writel(virt_to_phys(zx_secondary_startup),
+ __raw_writel(__pa_symbol(zx_secondary_startup),
aonsysctrl_base + AON_SYS_CTRL_RESERVED1);
iounmap(aonsysctrl_base);
@@ -94,7 +94,7 @@ void __init zx_smp_prepare_cpus(unsigned int max_cpus)
/* Map the first 4 KB IRAM for suspend usage */
sys_iram = __arm_ioremap_exec(ZX_IRAM_BASE, PAGE_SIZE, false);
- zx_secondary_startup_pa = virt_to_phys(zx_secondary_startup);
+ zx_secondary_startup_pa = __pa_symbol((zx_secondary_startup);)
fncpy(sys_iram, &zx_resume_jump, zx_suspend_iram_sz);
}
diff --git a/arch/arm/mach-zynq/platsmp.c b/arch/arm/mach-zynq/platsmp.c
index 7cd9865bdeb7..caa6d5fe9078 100644
--- a/arch/arm/mach-zynq/platsmp.c
+++ b/arch/arm/mach-zynq/platsmp.c
@@ -89,7 +89,7 @@ EXPORT_SYMBOL(zynq_cpun_start);
static int zynq_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
- return zynq_cpun_start(virt_to_phys(secondary_startup), cpu);
+ return zynq_cpun_start(__pa_symbol(secondary_startup), cpu);
}
/*
--
2.9.3
^ permalink raw reply related [flat|nested] 35+ messages in thread
* Re: [PATCH v2 4/4] ARM: treewide: Replace uses of virt_to_phys with __pa_symbol
2016-12-08 18:59 ` [PATCH v2 4/4] ARM: treewide: Replace uses of virt_to_phys with __pa_symbol Florian Fainelli
@ 2016-12-08 21:49 ` kbuild test robot
0 siblings, 0 replies; 35+ messages in thread
From: kbuild test robot @ 2016-12-08 21:49 UTC (permalink / raw)
To: Florian Fainelli
Cc: kbuild-all, linux-arm-kernel, Florian Fainelli, linux,
nicolas.pitre, panand, chris.brandt, arnd, jonathan.austin,
pawel.moll, vladimir.murzin, mark.rutland, ard.biesheuvel,
keescook, matt, labbott, kirill.shutemov, ben, js07.lee, stefan,
linux-kernel
[-- Attachment #1: Type: text/plain, Size: 5470 bytes --]
Hi Florian,
[auto build test ERROR on linus/master]
[also build test ERROR on v4.9-rc8]
[cannot apply to arm-soc/for-next next-20161208]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Florian-Fainelli/ARM-Add-support-for-CONFIG_DEBUG_VIRTUAL/20161209-032753
config: arm-allmodconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=arm
All error/warnings (new ones prefixed by >>):
arch/arm/mach-realview/platsmp-dt.c: In function 'realview_smp_prepare_cpus':
>> arch/arm/mach-realview/platsmp-dt.c:79:50: error: expected ')' before ';' token
__pa_symbol((versatile_secondary_startup));)
^
>> arch/arm/mach-realview/platsmp-dt.c:80:1: error: expected ';' before '}' token
}
^
--
In file included from arch/arm/include/asm/delay.h:9:0,
from include/linux/delay.h:14,
from arch/arm/mach-zx/platsmp.c:10:
arch/arm/mach-zx/platsmp.c: In function 'zx_smp_prepare_cpus':
>> arch/arm/mach-zx/platsmp.c:97:62: error: expected ')' before ';' token
zx_secondary_startup_pa = __pa_symbol((zx_secondary_startup);)
^
arch/arm/include/asm/memory.h:264:56: note: in definition of macro '__pa_symbol_nodebug'
#define __pa_symbol_nodebug(x) __virt_to_phys_nodebug((x))
^
arch/arm/include/asm/memory.h:296:25: note: in expansion of macro '__phys_addr_symbol'
#define __pa_symbol(x) __phys_addr_symbol(RELOC_HIDE((unsigned long)(x), 0))
^~~~~~~~~~~~~~~~~~
>> arch/arm/include/asm/memory.h:296:44: note: in expansion of macro 'RELOC_HIDE'
#define __pa_symbol(x) __phys_addr_symbol(RELOC_HIDE((unsigned long)(x), 0))
^~~~~~~~~~
>> arch/arm/mach-zx/platsmp.c:97:28: note: in expansion of macro '__pa_symbol'
zx_secondary_startup_pa = __pa_symbol((zx_secondary_startup);)
^~~~~~~~~~~
>> arch/arm/mach-zx/platsmp.c:97:62: error: expected ')' before ';' token
zx_secondary_startup_pa = __pa_symbol((zx_secondary_startup);)
^
arch/arm/include/asm/memory.h:264:56: note: in definition of macro '__pa_symbol_nodebug'
#define __pa_symbol_nodebug(x) __virt_to_phys_nodebug((x))
^
arch/arm/include/asm/memory.h:296:25: note: in expansion of macro '__phys_addr_symbol'
#define __pa_symbol(x) __phys_addr_symbol(RELOC_HIDE((unsigned long)(x), 0))
^~~~~~~~~~~~~~~~~~
>> arch/arm/include/asm/memory.h:296:44: note: in expansion of macro 'RELOC_HIDE'
#define __pa_symbol(x) __phys_addr_symbol(RELOC_HIDE((unsigned long)(x), 0))
^~~~~~~~~~
>> arch/arm/mach-zx/platsmp.c:97:28: note: in expansion of macro '__pa_symbol'
zx_secondary_startup_pa = __pa_symbol((zx_secondary_startup);)
^~~~~~~~~~~
In file included from arch/arm/mach-zx/platsmp.c:21:0:
>> arch/arm/include/asm/fncpy.h:71:39: error: expected expression before '{' token
#define fncpy(dest_buf, funcp, size) ({ \
^
>> arch/arm/mach-zx/platsmp.c:98:2: note: in expansion of macro 'fncpy'
fncpy(sys_iram, &zx_resume_jump, zx_suspend_iram_sz);
^~~~~
In file included from arch/arm/include/asm/delay.h:9:0,
from include/linux/delay.h:14,
from arch/arm/mach-zx/platsmp.c:10:
>> arch/arm/include/asm/memory.h:264:32: error: called object is not a function or function pointer
#define __pa_symbol_nodebug(x) __virt_to_phys_nodebug((x))
^
arch/arm/include/asm/memory.h:271:31: note: in expansion of macro '__pa_symbol_nodebug'
#define __phys_addr_symbol(x) __pa_symbol_nodebug(x)
^~~~~~~~~~~~~~~~~~~
arch/arm/include/asm/memory.h:296:25: note: in expansion of macro '__phys_addr_symbol'
#define __pa_symbol(x) __phys_addr_symbol(RELOC_HIDE((unsigned long)(x), 0))
^~~~~~~~~~~~~~~~~~
>> arch/arm/mach-zx/platsmp.c:97:28: note: in expansion of macro '__pa_symbol'
zx_secondary_startup_pa = __pa_symbol((zx_secondary_startup);)
^~~~~~~~~~~
vim +79 arch/arm/mach-realview/platsmp-dt.c
73 if (IS_ERR(map)) {
74 pr_err("PLATSMP: No syscon regmap\n");
75 return;
76 }
77 /* Put the boot address in this magic register */
78 regmap_write(map, REALVIEW_SYS_FLAGSSET_OFFSET,
> 79 __pa_symbol((versatile_secondary_startup));)
> 80 }
81
82 static const struct smp_operations realview_dt_smp_ops __initconst = {
83 .smp_prepare_cpus = realview_smp_prepare_cpus,
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 59402 bytes --]
^ permalink raw reply [flat|nested] 35+ messages in thread
* [PATCH v3 0/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL
2016-12-08 18:59 ` [PATCH v2 0/4] ARM: " Florian Fainelli
` (3 preceding siblings ...)
2016-12-08 18:59 ` [PATCH v2 4/4] ARM: treewide: Replace uses of virt_to_phys with __pa_symbol Florian Fainelli
@ 2016-12-09 23:36 ` Florian Fainelli
2016-12-09 23:36 ` [PATCH v3 1/4] mtd: lart: Rename partition defines to be prefixed with PART_ Florian Fainelli
` (5 more replies)
4 siblings, 6 replies; 35+ messages in thread
From: Florian Fainelli @ 2016-12-09 23:36 UTC (permalink / raw)
To: linux-arm-kernel
Cc: Florian Fainelli, linux, nicolas.pitre, panand, chris.brandt,
arnd, jonathan.austin, pawel.moll, vladimir.murzin, mark.rutland,
ard.biesheuvel, keescook, matt, labbott, kirill.shutemov, ben,
js07.lee, stefan, linux-kernel, linux-mtd, cyrille.pitchen,
richard, boris.brezillon, computersforpeace, dwmw2
This patch series builds on top of Laura's [PATCHv5 00/10] CONFIG_DEBUG_VIRTUAL
for arm64 to add support for CONFIG_DEBUG_VIRTUAL for ARM.
This was tested on a Brahma B15 platform (ARMv7 + HIGHMEM + LPAE).
Note that the treewide changes would involve a huge CC list, which
is why it has been purposely trimmed to just focusing on the DEBUG_VIRTUAL
aspect.
Changes in v3:
- fix build failures reported by Kbuild test robot
Changes in v2:
- Modified MTD LART driver not to create symbol conflicts with
KERNEL_START
- Fixed patch that defines and uses KERNEL_START/END
- Fixed __pa_symbol()'s definition
- Inline __pa_symbol() check wihtin the VIRTUAL_BUG_ON statement
- Simplified check for virtual addresses
- Added a tree-wide patch changing SMP/PM implementations to use
__pa_symbol(), build tested against multi_v{5,7}_defconfig
Thanks!
Florian Fainelli (4):
mtd: lart: Rename partition defines to be prefixed with PART_
ARM: Define KERNEL_START and KERNEL_END
ARM: Add support for CONFIG_DEBUG_VIRTUAL
ARM: treewide: Replace uses of virt_to_phys with __pa_symbol
arch/arm/Kconfig | 1 +
arch/arm/boot/compressed/piggy.xzkern | Bin 0 -> 2998584 bytes
arch/arm/common/mcpm_entry.c | 12 +++----
arch/arm/include/asm/memory.h | 23 ++++++++++++--
arch/arm/mach-alpine/platsmp.c | 2 +-
arch/arm/mach-axxia/platsmp.c | 2 +-
arch/arm/mach-bcm/bcm63xx_smp.c | 2 +-
arch/arm/mach-bcm/platsmp-brcmstb.c | 2 +-
arch/arm/mach-bcm/platsmp.c | 4 +--
arch/arm/mach-berlin/platsmp.c | 2 +-
arch/arm/mach-exynos/firmware.c | 4 +--
arch/arm/mach-exynos/mcpm-exynos.c | 2 +-
arch/arm/mach-exynos/platsmp.c | 4 +--
arch/arm/mach-exynos/pm.c | 6 ++--
arch/arm/mach-exynos/suspend.c | 6 ++--
arch/arm/mach-hisi/platmcpm.c | 2 +-
arch/arm/mach-hisi/platsmp.c | 6 ++--
arch/arm/mach-imx/platsmp.c | 2 +-
arch/arm/mach-imx/pm-imx6.c | 2 +-
arch/arm/mach-imx/src.c | 2 +-
arch/arm/mach-mediatek/platsmp.c | 2 +-
arch/arm/mach-mvebu/pm.c | 2 +-
arch/arm/mach-mvebu/pmsu.c | 2 +-
arch/arm/mach-mvebu/system-controller.c | 2 +-
arch/arm/mach-omap2/control.c | 8 ++---
arch/arm/mach-omap2/omap-mpuss-lowpower.c | 8 ++---
arch/arm/mach-omap2/omap-smp.c | 4 +--
arch/arm/mach-prima2/platsmp.c | 2 +-
arch/arm/mach-prima2/pm.c | 2 +-
arch/arm/mach-pxa/palmz72.c | 2 +-
arch/arm/mach-pxa/pxa25x.c | 2 +-
arch/arm/mach-pxa/pxa27x.c | 2 +-
arch/arm/mach-pxa/pxa3xx.c | 2 +-
arch/arm/mach-realview/platsmp-dt.c | 2 +-
arch/arm/mach-rockchip/platsmp.c | 4 +--
arch/arm/mach-rockchip/pm.c | 2 +-
arch/arm/mach-s3c24xx/mach-jive.c | 2 +-
arch/arm/mach-s3c24xx/pm-s3c2410.c | 2 +-
arch/arm/mach-s3c24xx/pm-s3c2416.c | 2 +-
arch/arm/mach-s3c64xx/pm.c | 2 +-
arch/arm/mach-s5pv210/pm.c | 2 +-
arch/arm/mach-sa1100/pm.c | 2 +-
arch/arm/mach-shmobile/platsmp-apmu.c | 6 ++--
arch/arm/mach-shmobile/platsmp-scu.c | 4 +--
arch/arm/mach-socfpga/platsmp.c | 4 +--
arch/arm/mach-spear/platsmp.c | 2 +-
arch/arm/mach-sti/platsmp.c | 2 +-
arch/arm/mach-sunxi/platsmp.c | 4 +--
arch/arm/mach-tango/platsmp.c | 2 +-
arch/arm/mach-tango/pm.c | 2 +-
arch/arm/mach-tegra/reset.c | 4 +--
arch/arm/mach-ux500/platsmp.c | 2 +-
arch/arm/mach-vexpress/dcscb.c | 2 +-
arch/arm/mach-vexpress/platsmp.c | 2 +-
arch/arm/mach-vexpress/tc2_pm.c | 4 +--
arch/arm/mach-zx/platsmp.c | 4 +--
arch/arm/mach-zynq/platsmp.c | 2 +-
arch/arm/mm/Makefile | 1 +
arch/arm/mm/init.c | 7 ++--
arch/arm/mm/mmu.c | 6 +---
arch/arm/mm/physaddr.c | 51 ++++++++++++++++++++++++++++++
drivers/mtd/devices/lart.c | 24 +++++++-------
62 files changed, 173 insertions(+), 108 deletions(-)
create mode 100644 arch/arm/boot/compressed/piggy.xzkern
create mode 100644 arch/arm/mm/physaddr.c
--
2.9.3
^ permalink raw reply [flat|nested] 35+ messages in thread
* [PATCH v3 1/4] mtd: lart: Rename partition defines to be prefixed with PART_
2016-12-09 23:36 ` [PATCH v3 0/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Florian Fainelli
@ 2016-12-09 23:36 ` Florian Fainelli
2016-12-14 7:08 ` Boris Brezillon
2016-12-09 23:36 ` [PATCH v3 2/4] ARM: Define KERNEL_START and KERNEL_END Florian Fainelli
` (4 subsequent siblings)
5 siblings, 1 reply; 35+ messages in thread
From: Florian Fainelli @ 2016-12-09 23:36 UTC (permalink / raw)
To: linux-arm-kernel
Cc: Florian Fainelli, linux, nicolas.pitre, panand, chris.brandt,
arnd, jonathan.austin, pawel.moll, vladimir.murzin, mark.rutland,
ard.biesheuvel, keescook, matt, labbott, kirill.shutemov, ben,
js07.lee, stefan, linux-kernel, linux-mtd, cyrille.pitchen,
richard, boris.brezillon, computersforpeace, dwmw2
In preparation for defining KERNEL_START on ARM, rename KERNEL_START to
PART_KERNEL_START, and to be consistent, do this for all
partition-related constants.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
drivers/mtd/devices/lart.c | 24 ++++++++++++------------
1 file changed, 12 insertions(+), 12 deletions(-)
diff --git a/drivers/mtd/devices/lart.c b/drivers/mtd/devices/lart.c
index 82bd00af5cc3..268aae45b514 100644
--- a/drivers/mtd/devices/lart.c
+++ b/drivers/mtd/devices/lart.c
@@ -75,18 +75,18 @@ static char module_name[] = "lart";
/* blob */
#define NUM_BLOB_BLOCKS FLASH_NUMBLOCKS_16m_PARAM
-#define BLOB_START 0x00000000
-#define BLOB_LEN (NUM_BLOB_BLOCKS * FLASH_BLOCKSIZE_PARAM)
+#define PART_BLOB_START 0x00000000
+#define PART_BLOB_LEN (NUM_BLOB_BLOCKS * FLASH_BLOCKSIZE_PARAM)
/* kernel */
#define NUM_KERNEL_BLOCKS 7
-#define KERNEL_START (BLOB_START + BLOB_LEN)
-#define KERNEL_LEN (NUM_KERNEL_BLOCKS * FLASH_BLOCKSIZE_MAIN)
+#define PART_KERNEL_START (PART_BLOB_START + PART_BLOB_LEN)
+#define PART_KERNEL_LEN (NUM_KERNEL_BLOCKS * FLASH_BLOCKSIZE_MAIN)
/* initial ramdisk */
#define NUM_INITRD_BLOCKS 24
-#define INITRD_START (KERNEL_START + KERNEL_LEN)
-#define INITRD_LEN (NUM_INITRD_BLOCKS * FLASH_BLOCKSIZE_MAIN)
+#define PART_INITRD_START (PART_KERNEL_START + PART_KERNEL_LEN)
+#define PART_INITRD_LEN (NUM_INITRD_BLOCKS * FLASH_BLOCKSIZE_MAIN)
/*
* See section 4.0 in "3 Volt Fast Boot Block Flash Memory" Intel Datasheet
@@ -587,20 +587,20 @@ static struct mtd_partition lart_partitions[] = {
/* blob */
{
.name = "blob",
- .offset = BLOB_START,
- .size = BLOB_LEN,
+ .offset = PART_BLOB_START,
+ .size = PART_BLOB_LEN,
},
/* kernel */
{
.name = "kernel",
- .offset = KERNEL_START, /* MTDPART_OFS_APPEND */
- .size = KERNEL_LEN,
+ .offset = PART_KERNEL_START, /* MTDPART_OFS_APPEND */
+ .size = PART_KERNEL_LEN,
},
/* initial ramdisk / file system */
{
.name = "file system",
- .offset = INITRD_START, /* MTDPART_OFS_APPEND */
- .size = INITRD_LEN, /* MTDPART_SIZ_FULL */
+ .offset = PART_INITRD_START, /* MTDPART_OFS_APPEND */
+ .size = PART_INITRD_LEN, /* MTDPART_SIZ_FULL */
}
};
#define NUM_PARTITIONS ARRAY_SIZE(lart_partitions)
--
2.9.3
^ permalink raw reply related [flat|nested] 35+ messages in thread
* [PATCH v3 2/4] ARM: Define KERNEL_START and KERNEL_END
2016-12-09 23:36 ` [PATCH v3 0/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Florian Fainelli
2016-12-09 23:36 ` [PATCH v3 1/4] mtd: lart: Rename partition defines to be prefixed with PART_ Florian Fainelli
@ 2016-12-09 23:36 ` Florian Fainelli
2016-12-09 23:36 ` [PATCH v3 3/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Florian Fainelli
` (3 subsequent siblings)
5 siblings, 0 replies; 35+ messages in thread
From: Florian Fainelli @ 2016-12-09 23:36 UTC (permalink / raw)
To: linux-arm-kernel
Cc: Florian Fainelli, linux, nicolas.pitre, panand, chris.brandt,
arnd, jonathan.austin, pawel.moll, vladimir.murzin, mark.rutland,
ard.biesheuvel, keescook, matt, labbott, kirill.shutemov, ben,
js07.lee, stefan, linux-kernel, linux-mtd, cyrille.pitchen,
richard, boris.brezillon, computersforpeace, dwmw2
In preparation for adding CONFIG_DEBUG_VIRTUAL support, define a set of
common constants: KERNEL_START and KERNEL_END which abstract
CONFIG_XIP_KERNEL vs. !CONFIG_XIP_KERNEL. Update the code where
relevant.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
arch/arm/include/asm/memory.h | 7 +++++++
arch/arm/mm/init.c | 7 ++-----
arch/arm/mm/mmu.c | 6 +-----
3 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index 76cbd9c674df..bee7511c5098 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -111,6 +111,13 @@
#endif /* !CONFIG_MMU */
+#ifdef CONFIG_XIP_KERNEL
+#define KERNEL_START _sdata
+#else
+#define KERNEL_START _stext
+#endif
+#define KERNEL_END _end
+
/*
* We fix the TCM memories max 32 KiB ITCM resp DTCM at these
* locations
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 370581aeb871..c87d0d5b65f2 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -230,11 +230,8 @@ phys_addr_t __init arm_memblock_steal(phys_addr_t size, phys_addr_t align)
void __init arm_memblock_init(const struct machine_desc *mdesc)
{
/* Register the kernel text, kernel data and initrd with memblock. */
-#ifdef CONFIG_XIP_KERNEL
- memblock_reserve(__pa(_sdata), _end - _sdata);
-#else
- memblock_reserve(__pa(_stext), _end - _stext);
-#endif
+ memblock_reserve(__pa(KERNEL_START), _end - KERNEL_START);
+
#ifdef CONFIG_BLK_DEV_INITRD
/* FDT scan will populate initrd_start */
if (initrd_start && !phys_initrd_size) {
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 4001dd15818d..f0fd1a2db036 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -1437,11 +1437,7 @@ static void __init kmap_init(void)
static void __init map_lowmem(void)
{
struct memblock_region *reg;
-#ifdef CONFIG_XIP_KERNEL
- phys_addr_t kernel_x_start = round_down(__pa(_sdata), SECTION_SIZE);
-#else
- phys_addr_t kernel_x_start = round_down(__pa(_stext), SECTION_SIZE);
-#endif
+ phys_addr_t kernel_x_start = round_down(__pa(KERNEL_START), SECTION_SIZE);
phys_addr_t kernel_x_end = round_up(__pa(__init_end), SECTION_SIZE);
/* Map all the lowmem memory banks. */
--
2.9.3
^ permalink raw reply related [flat|nested] 35+ messages in thread
* [PATCH v3 3/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL
2016-12-09 23:36 ` [PATCH v3 0/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Florian Fainelli
2016-12-09 23:36 ` [PATCH v3 1/4] mtd: lart: Rename partition defines to be prefixed with PART_ Florian Fainelli
2016-12-09 23:36 ` [PATCH v3 2/4] ARM: Define KERNEL_START and KERNEL_END Florian Fainelli
@ 2016-12-09 23:36 ` Florian Fainelli
2016-12-22 2:40 ` Laura Abbott
2016-12-09 23:36 ` [PATCH v3 4/4] ARM: treewide: Replace uses of virt_to_phys with __pa_symbol Florian Fainelli
` (2 subsequent siblings)
5 siblings, 1 reply; 35+ messages in thread
From: Florian Fainelli @ 2016-12-09 23:36 UTC (permalink / raw)
To: linux-arm-kernel
Cc: Florian Fainelli, linux, nicolas.pitre, panand, chris.brandt,
arnd, jonathan.austin, pawel.moll, vladimir.murzin, mark.rutland,
ard.biesheuvel, keescook, matt, labbott, kirill.shutemov, ben,
js07.lee, stefan, linux-kernel, linux-mtd, cyrille.pitchen,
richard, boris.brezillon, computersforpeace, dwmw2
x86 has an option: CONFIG_DEBUG_VIRTUAL to do additional checks on
virt_to_phys calls. The goal is to catch users who are calling
virt_to_phys on non-linear addresses immediately. This includes caller
using __virt_to_phys() on image addresses instead of __pa_symbol(). This
is a generally useful debug feature to spot bad code (particulary in
drivers).
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
arch/arm/Kconfig | 1 +
arch/arm/include/asm/memory.h | 16 ++++++++++++--
arch/arm/mm/Makefile | 1 +
arch/arm/mm/physaddr.c | 51 +++++++++++++++++++++++++++++++++++++++++++
4 files changed, 67 insertions(+), 2 deletions(-)
create mode 100644 arch/arm/mm/physaddr.c
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index b5d529fdffab..5e66173c5787 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -2,6 +2,7 @@ config ARM
bool
default y
select ARCH_CLOCKSOURCE_DATA
+ select ARCH_HAS_DEBUG_VIRTUAL
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_HAS_ELF_RANDOMIZE
select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index bee7511c5098..d90300193adf 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -213,7 +213,7 @@ extern const void *__pv_table_begin, *__pv_table_end;
: "r" (x), "I" (__PV_BITS_31_24) \
: "cc")
-static inline phys_addr_t __virt_to_phys(unsigned long x)
+static inline phys_addr_t __virt_to_phys_nodebug(unsigned long x)
{
phys_addr_t t;
@@ -245,7 +245,7 @@ static inline unsigned long __phys_to_virt(phys_addr_t x)
#define PHYS_OFFSET PLAT_PHYS_OFFSET
#define PHYS_PFN_OFFSET ((unsigned long)(PHYS_OFFSET >> PAGE_SHIFT))
-static inline phys_addr_t __virt_to_phys(unsigned long x)
+static inline phys_addr_t __virt_to_phys_nodebug(unsigned long x)
{
return (phys_addr_t)x - PAGE_OFFSET + PHYS_OFFSET;
}
@@ -261,6 +261,16 @@ static inline unsigned long __phys_to_virt(phys_addr_t x)
((((unsigned long)(kaddr) - PAGE_OFFSET) >> PAGE_SHIFT) + \
PHYS_PFN_OFFSET)
+#define __pa_symbol_nodebug(x) __virt_to_phys_nodebug((x))
+
+#ifdef CONFIG_DEBUG_VIRTUAL
+extern phys_addr_t __virt_to_phys(unsigned long x);
+extern phys_addr_t __phys_addr_symbol(unsigned long x);
+#else
+#define __virt_to_phys(x) __virt_to_phys_nodebug(x)
+#define __phys_addr_symbol(x) __pa_symbol_nodebug(x)
+#endif
+
/*
* These are *only* valid on the kernel direct mapped RAM memory.
* Note: Drivers should NOT use these. They are the wrong
@@ -283,9 +293,11 @@ static inline void *phys_to_virt(phys_addr_t x)
* Drivers should NOT use these either.
*/
#define __pa(x) __virt_to_phys((unsigned long)(x))
+#define __pa_symbol(x) __phys_addr_symbol(RELOC_HIDE((unsigned long)(x), 0))
#define __va(x) ((void *)__phys_to_virt((phys_addr_t)(x)))
#define pfn_to_kaddr(pfn) __va((phys_addr_t)(pfn) << PAGE_SHIFT)
+
extern long long arch_phys_to_idmap_offset;
/*
diff --git a/arch/arm/mm/Makefile b/arch/arm/mm/Makefile
index e8698241ece9..b3dea80715b4 100644
--- a/arch/arm/mm/Makefile
+++ b/arch/arm/mm/Makefile
@@ -14,6 +14,7 @@ endif
obj-$(CONFIG_ARM_PTDUMP) += dump.o
obj-$(CONFIG_MODULES) += proc-syms.o
+obj-$(CONFIG_DEBUG_VIRTUAL) += physaddr.o
obj-$(CONFIG_ALIGNMENT_TRAP) += alignment.o
obj-$(CONFIG_HIGHMEM) += highmem.o
diff --git a/arch/arm/mm/physaddr.c b/arch/arm/mm/physaddr.c
new file mode 100644
index 000000000000..0288760306ce
--- /dev/null
+++ b/arch/arm/mm/physaddr.c
@@ -0,0 +1,51 @@
+#include <linux/bug.h>
+#include <linux/export.h>
+#include <linux/types.h>
+#include <linux/mmdebug.h>
+#include <linux/mm.h>
+
+#include <asm/sections.h>
+#include <asm/memory.h>
+#include <asm/fixmap.h>
+#include <asm/dma.h>
+
+#include "mm.h"
+
+static inline bool __virt_addr_valid(unsigned long x)
+{
+ /* high_memory does not get immediately defined, and there
+ * are early callers of __pa() against PAGE_OFFSET, just catch
+ * these here, then do normal checks, with the exception of
+ * MAX_DMA_ADDRESS.
+ */
+ if ((x >= PAGE_OFFSET && !high_memory) ||
+ (x >= PAGE_OFFSET &&
+ high_memory && x < (unsigned long)high_memory) ||
+ x == MAX_DMA_ADDRESS)
+ return true;
+
+ return false;
+}
+
+phys_addr_t __virt_to_phys(unsigned long x)
+{
+ WARN(!__virt_addr_valid(x),
+ "virt_to_phys used for non-linear address: %pK (%pS)\n",
+ (void *)x,
+ (void *)x);
+
+ return __virt_to_phys_nodebug(x);
+}
+EXPORT_SYMBOL(__virt_to_phys);
+
+phys_addr_t __phys_addr_symbol(unsigned long x)
+{
+ /* This is bounds checking against the kernel image only.
+ * __pa_symbol should only be used on kernel symbol addresses.
+ */
+ VIRTUAL_BUG_ON(x < (unsigned long)KERNEL_START ||
+ x > (unsigned long)KERNEL_END);
+
+ return __pa_symbol_nodebug(x);
+}
+EXPORT_SYMBOL(__phys_addr_symbol);
--
2.9.3
^ permalink raw reply related [flat|nested] 35+ messages in thread
* [PATCH v3 4/4] ARM: treewide: Replace uses of virt_to_phys with __pa_symbol
2016-12-09 23:36 ` [PATCH v3 0/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Florian Fainelli
` (2 preceding siblings ...)
2016-12-09 23:36 ` [PATCH v3 3/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Florian Fainelli
@ 2016-12-09 23:36 ` Florian Fainelli
2016-12-13 20:29 ` [PATCH v3 0/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Florian Fainelli
2016-12-26 20:38 ` [PATCH v4 " Florian Fainelli
5 siblings, 0 replies; 35+ messages in thread
From: Florian Fainelli @ 2016-12-09 23:36 UTC (permalink / raw)
To: linux-arm-kernel
Cc: Florian Fainelli, linux, nicolas.pitre, panand, chris.brandt,
arnd, jonathan.austin, pawel.moll, vladimir.murzin, mark.rutland,
ard.biesheuvel, keescook, matt, labbott, kirill.shutemov, ben,
js07.lee, stefan, linux-kernel, linux-mtd, cyrille.pitchen,
richard, boris.brezillon, computersforpeace, dwmw2
All low-level PM/SMP code using virt_to_phys() should actually use
__pa_symbol() against kernel symbols. Update code where relevant to move
away from virt_to_phys().
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
arch/arm/common/mcpm_entry.c | 12 ++++++------
arch/arm/mach-alpine/platsmp.c | 2 +-
arch/arm/mach-axxia/platsmp.c | 2 +-
arch/arm/mach-bcm/bcm63xx_smp.c | 2 +-
arch/arm/mach-bcm/platsmp-brcmstb.c | 2 +-
arch/arm/mach-bcm/platsmp.c | 4 ++--
arch/arm/mach-berlin/platsmp.c | 2 +-
arch/arm/mach-exynos/firmware.c | 4 ++--
arch/arm/mach-exynos/mcpm-exynos.c | 2 +-
arch/arm/mach-exynos/platsmp.c | 4 ++--
arch/arm/mach-exynos/pm.c | 6 +++---
arch/arm/mach-exynos/suspend.c | 6 +++---
arch/arm/mach-hisi/platmcpm.c | 2 +-
arch/arm/mach-hisi/platsmp.c | 6 +++---
arch/arm/mach-imx/platsmp.c | 2 +-
arch/arm/mach-imx/pm-imx6.c | 2 +-
arch/arm/mach-imx/src.c | 2 +-
arch/arm/mach-mediatek/platsmp.c | 2 +-
arch/arm/mach-mvebu/pm.c | 2 +-
arch/arm/mach-mvebu/pmsu.c | 2 +-
arch/arm/mach-mvebu/system-controller.c | 2 +-
arch/arm/mach-omap2/control.c | 8 ++++----
arch/arm/mach-omap2/omap-mpuss-lowpower.c | 8 ++++----
arch/arm/mach-omap2/omap-smp.c | 4 ++--
arch/arm/mach-prima2/platsmp.c | 2 +-
arch/arm/mach-prima2/pm.c | 2 +-
arch/arm/mach-pxa/palmz72.c | 2 +-
arch/arm/mach-pxa/pxa25x.c | 2 +-
arch/arm/mach-pxa/pxa27x.c | 2 +-
arch/arm/mach-pxa/pxa3xx.c | 2 +-
arch/arm/mach-realview/platsmp-dt.c | 2 +-
arch/arm/mach-rockchip/platsmp.c | 4 ++--
arch/arm/mach-rockchip/pm.c | 2 +-
arch/arm/mach-s3c24xx/mach-jive.c | 2 +-
arch/arm/mach-s3c24xx/pm-s3c2410.c | 2 +-
arch/arm/mach-s3c24xx/pm-s3c2416.c | 2 +-
arch/arm/mach-s3c64xx/pm.c | 2 +-
arch/arm/mach-s5pv210/pm.c | 2 +-
arch/arm/mach-sa1100/pm.c | 2 +-
arch/arm/mach-shmobile/platsmp-apmu.c | 6 +++---
arch/arm/mach-shmobile/platsmp-scu.c | 4 ++--
arch/arm/mach-socfpga/platsmp.c | 4 ++--
arch/arm/mach-spear/platsmp.c | 2 +-
arch/arm/mach-sti/platsmp.c | 2 +-
arch/arm/mach-sunxi/platsmp.c | 4 ++--
arch/arm/mach-tango/platsmp.c | 2 +-
arch/arm/mach-tango/pm.c | 2 +-
arch/arm/mach-tegra/reset.c | 4 ++--
arch/arm/mach-ux500/platsmp.c | 2 +-
arch/arm/mach-vexpress/dcscb.c | 2 +-
arch/arm/mach-vexpress/platsmp.c | 2 +-
arch/arm/mach-vexpress/tc2_pm.c | 4 ++--
arch/arm/mach-zx/platsmp.c | 4 ++--
arch/arm/mach-zynq/platsmp.c | 2 +-
54 files changed, 84 insertions(+), 84 deletions(-)
diff --git a/arch/arm/common/mcpm_entry.c b/arch/arm/common/mcpm_entry.c
index a923524d1040..cf062472e07b 100644
--- a/arch/arm/common/mcpm_entry.c
+++ b/arch/arm/common/mcpm_entry.c
@@ -144,7 +144,7 @@ extern unsigned long mcpm_entry_vectors[MAX_NR_CLUSTERS][MAX_CPUS_PER_CLUSTER];
void mcpm_set_entry_vector(unsigned cpu, unsigned cluster, void *ptr)
{
- unsigned long val = ptr ? virt_to_phys(ptr) : 0;
+ unsigned long val = ptr ? __pa_symbol(ptr) : 0;
mcpm_entry_vectors[cluster][cpu] = val;
sync_cache_w(&mcpm_entry_vectors[cluster][cpu]);
}
@@ -299,8 +299,8 @@ void mcpm_cpu_power_down(void)
* the kernel as if the power_up method just had deasserted reset
* on the CPU.
*/
- phys_reset = (phys_reset_t)(unsigned long)virt_to_phys(cpu_reset);
- phys_reset(virt_to_phys(mcpm_entry_point));
+ phys_reset = (phys_reset_t)(unsigned long)__pa_symbol(cpu_reset);
+ phys_reset(__pa_symbol(mcpm_entry_point));
/* should never get here */
BUG();
@@ -388,8 +388,8 @@ static int __init nocache_trampoline(unsigned long _arg)
__mcpm_outbound_leave_critical(cluster, CLUSTER_DOWN);
__mcpm_cpu_down(cpu, cluster);
- phys_reset = (phys_reset_t)(unsigned long)virt_to_phys(cpu_reset);
- phys_reset(virt_to_phys(mcpm_entry_point));
+ phys_reset = (phys_reset_t)(unsigned long)__pa_symbol(cpu_reset);
+ phys_reset(__pa_symbol(mcpm_entry_point));
BUG();
}
@@ -449,7 +449,7 @@ int __init mcpm_sync_init(
sync_cache_w(&mcpm_sync);
if (power_up_setup) {
- mcpm_power_up_setup_phys = virt_to_phys(power_up_setup);
+ mcpm_power_up_setup_phys = __pa_symbol(power_up_setup);
sync_cache_w(&mcpm_power_up_setup_phys);
}
diff --git a/arch/arm/mach-alpine/platsmp.c b/arch/arm/mach-alpine/platsmp.c
index dd77ea25e7ca..6dc6d491f88a 100644
--- a/arch/arm/mach-alpine/platsmp.c
+++ b/arch/arm/mach-alpine/platsmp.c
@@ -27,7 +27,7 @@ static int alpine_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
phys_addr_t addr;
- addr = virt_to_phys(secondary_startup);
+ addr = __pa_symbol(secondary_startup);
if (addr > (phys_addr_t)(uint32_t)(-1)) {
pr_err("FAIL: resume address over 32bit (%pa)", &addr);
diff --git a/arch/arm/mach-axxia/platsmp.c b/arch/arm/mach-axxia/platsmp.c
index ffbd71d45008..502e3df69f69 100644
--- a/arch/arm/mach-axxia/platsmp.c
+++ b/arch/arm/mach-axxia/platsmp.c
@@ -25,7 +25,7 @@
static void write_release_addr(u32 release_phys)
{
u32 *virt = (u32 *) phys_to_virt(release_phys);
- writel_relaxed(virt_to_phys(secondary_startup), virt);
+ writel_relaxed(__pa_symbol(secondary_startup), virt);
/* Make sure this store is visible to other CPUs */
smp_wmb();
__cpuc_flush_dcache_area(virt, sizeof(u32));
diff --git a/arch/arm/mach-bcm/bcm63xx_smp.c b/arch/arm/mach-bcm/bcm63xx_smp.c
index 9b6727ed68cd..f5fb10b4376f 100644
--- a/arch/arm/mach-bcm/bcm63xx_smp.c
+++ b/arch/arm/mach-bcm/bcm63xx_smp.c
@@ -135,7 +135,7 @@ static int bcm63138_smp_boot_secondary(unsigned int cpu,
}
/* Write the secondary init routine to the BootLUT reset vector */
- val = virt_to_phys(secondary_startup);
+ val = __pa_symbol(secondary_startup);
writel_relaxed(val, bootlut_base + BOOTLUT_RESET_VECT);
/* Power up the core, will jump straight to its reset vector when we
diff --git a/arch/arm/mach-bcm/platsmp-brcmstb.c b/arch/arm/mach-bcm/platsmp-brcmstb.c
index 40dc8448445e..12379960e982 100644
--- a/arch/arm/mach-bcm/platsmp-brcmstb.c
+++ b/arch/arm/mach-bcm/platsmp-brcmstb.c
@@ -151,7 +151,7 @@ static void brcmstb_cpu_boot(u32 cpu)
* Set the reset vector to point to the secondary_startup
* routine
*/
- cpu_set_boot_addr(cpu, virt_to_phys(secondary_startup));
+ cpu_set_boot_addr(cpu, __pa_symbol(secondary_startup));
/* Unhalt the cpu */
cpu_rst_cfg_set(cpu, 0);
diff --git a/arch/arm/mach-bcm/platsmp.c b/arch/arm/mach-bcm/platsmp.c
index 3ac3a9bc663c..582886d0d02f 100644
--- a/arch/arm/mach-bcm/platsmp.c
+++ b/arch/arm/mach-bcm/platsmp.c
@@ -116,7 +116,7 @@ static int nsp_write_lut(unsigned int cpu)
return -ENOMEM;
}
- secondary_startup_phy = virt_to_phys(secondary_startup);
+ secondary_startup_phy = __pa_symbol(secondary_startup);
BUG_ON(secondary_startup_phy > (phys_addr_t)U32_MAX);
writel_relaxed(secondary_startup_phy, sku_rom_lut);
@@ -189,7 +189,7 @@ static int kona_boot_secondary(unsigned int cpu, struct task_struct *idle)
* Secondary cores will start in secondary_startup(),
* defined in "arch/arm/kernel/head.S"
*/
- boot_func = virt_to_phys(secondary_startup);
+ boot_func = __pa_symbol(secondary_startup);
BUG_ON(boot_func & BOOT_ADDR_CPUID_MASK);
BUG_ON(boot_func > (phys_addr_t)U32_MAX);
diff --git a/arch/arm/mach-berlin/platsmp.c b/arch/arm/mach-berlin/platsmp.c
index 93f90688db18..1167b0ed92c8 100644
--- a/arch/arm/mach-berlin/platsmp.c
+++ b/arch/arm/mach-berlin/platsmp.c
@@ -92,7 +92,7 @@ static void __init berlin_smp_prepare_cpus(unsigned int max_cpus)
* Write the secondary startup address into the SW reset address
* vector. This is used by boot_inst.
*/
- writel(virt_to_phys(secondary_startup), vectors_base + SW_RESET_ADDR);
+ writel(__pa_symbol(secondary_startup), vectors_base + SW_RESET_ADDR);
iounmap(vectors_base);
unmap_scu:
diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c
index fd6da5419b51..e81a78b125d9 100644
--- a/arch/arm/mach-exynos/firmware.c
+++ b/arch/arm/mach-exynos/firmware.c
@@ -41,7 +41,7 @@ static int exynos_do_idle(unsigned long mode)
case FW_DO_IDLE_AFTR:
if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9)
exynos_save_cp15();
- writel_relaxed(virt_to_phys(exynos_cpu_resume_ns),
+ writel_relaxed(__pa_symbol(exynos_cpu_resume_ns),
sysram_ns_base_addr + 0x24);
writel_relaxed(EXYNOS_AFTR_MAGIC, sysram_ns_base_addr + 0x20);
if (soc_is_exynos3250()) {
@@ -135,7 +135,7 @@ static int exynos_suspend(void)
exynos_save_cp15();
writel(EXYNOS_SLEEP_MAGIC, sysram_ns_base_addr + EXYNOS_BOOT_FLAG);
- writel(virt_to_phys(exynos_cpu_resume_ns),
+ writel(__pa_symbol(exynos_cpu_resume_ns),
sysram_ns_base_addr + EXYNOS_BOOT_ADDR);
return cpu_suspend(0, exynos_cpu_suspend);
diff --git a/arch/arm/mach-exynos/mcpm-exynos.c b/arch/arm/mach-exynos/mcpm-exynos.c
index f086bf615b29..214a9cfa92e9 100644
--- a/arch/arm/mach-exynos/mcpm-exynos.c
+++ b/arch/arm/mach-exynos/mcpm-exynos.c
@@ -221,7 +221,7 @@ static void exynos_mcpm_setup_entry_point(void)
*/
__raw_writel(0xe59f0000, ns_sram_base_addr); /* ldr r0, [pc, #0] */
__raw_writel(0xe12fff10, ns_sram_base_addr + 4); /* bx r0 */
- __raw_writel(virt_to_phys(mcpm_entry_point), ns_sram_base_addr + 8);
+ __raw_writel(__pa_symbol(mcpm_entry_point), ns_sram_base_addr + 8);
}
static struct syscore_ops exynos_mcpm_syscore_ops = {
diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c
index 98ffe1e62ad5..9f4949f7ed88 100644
--- a/arch/arm/mach-exynos/platsmp.c
+++ b/arch/arm/mach-exynos/platsmp.c
@@ -353,7 +353,7 @@ static int exynos_boot_secondary(unsigned int cpu, struct task_struct *idle)
smp_rmb();
- boot_addr = virt_to_phys(exynos4_secondary_startup);
+ boot_addr = __pa_symbol(exynos4_secondary_startup);
ret = exynos_set_boot_addr(core_id, boot_addr);
if (ret)
@@ -443,7 +443,7 @@ static void __init exynos_smp_prepare_cpus(unsigned int max_cpus)
mpidr = cpu_logical_map(i);
core_id = MPIDR_AFFINITY_LEVEL(mpidr, 0);
- boot_addr = virt_to_phys(exynos4_secondary_startup);
+ boot_addr = __pa_symbol(exynos4_secondary_startup);
ret = exynos_set_boot_addr(core_id, boot_addr);
if (ret)
diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c
index 487295f4a56b..1a7e5b5d08d8 100644
--- a/arch/arm/mach-exynos/pm.c
+++ b/arch/arm/mach-exynos/pm.c
@@ -132,7 +132,7 @@ static void exynos_set_wakeupmask(long mask)
static void exynos_cpu_set_boot_vector(long flags)
{
- writel_relaxed(virt_to_phys(exynos_cpu_resume),
+ writel_relaxed(__pa_symbol(exynos_cpu_resume),
exynos_boot_vector_addr());
writel_relaxed(flags, exynos_boot_vector_flag());
}
@@ -238,7 +238,7 @@ static int exynos_cpu0_enter_aftr(void)
abort:
if (cpu_online(1)) {
- unsigned long boot_addr = virt_to_phys(exynos_cpu_resume);
+ unsigned long boot_addr = __pa_symbol(exynos_cpu_resume);
/*
* Set the boot vector to something non-zero
@@ -330,7 +330,7 @@ static int exynos_cpu1_powerdown(void)
static void exynos_pre_enter_aftr(void)
{
- unsigned long boot_addr = virt_to_phys(exynos_cpu_resume);
+ unsigned long boot_addr = __pa_symbol(exynos_cpu_resume);
(void)exynos_set_boot_addr(1, boot_addr);
}
diff --git a/arch/arm/mach-exynos/suspend.c b/arch/arm/mach-exynos/suspend.c
index 06332f626565..97765be2cc12 100644
--- a/arch/arm/mach-exynos/suspend.c
+++ b/arch/arm/mach-exynos/suspend.c
@@ -344,7 +344,7 @@ static void exynos_pm_prepare(void)
exynos_pm_enter_sleep_mode();
/* ensure at least INFORM0 has the resume address */
- pmu_raw_writel(virt_to_phys(exynos_cpu_resume), S5P_INFORM0);
+ pmu_raw_writel(__pa_symbol(exynos_cpu_resume), S5P_INFORM0);
}
static void exynos3250_pm_prepare(void)
@@ -361,7 +361,7 @@ static void exynos3250_pm_prepare(void)
exynos_pm_enter_sleep_mode();
/* ensure at least INFORM0 has the resume address */
- pmu_raw_writel(virt_to_phys(exynos_cpu_resume), S5P_INFORM0);
+ pmu_raw_writel(__pa_symbol(exynos_cpu_resume), S5P_INFORM0);
}
static void exynos5420_pm_prepare(void)
@@ -386,7 +386,7 @@ static void exynos5420_pm_prepare(void)
/* ensure at least INFORM0 has the resume address */
if (IS_ENABLED(CONFIG_EXYNOS5420_MCPM))
- pmu_raw_writel(virt_to_phys(mcpm_entry_point), S5P_INFORM0);
+ pmu_raw_writel(__pa_symbol(mcpm_entry_point), S5P_INFORM0);
tmp = pmu_raw_readl(EXYNOS5_ARM_L2_OPTION);
tmp &= ~EXYNOS5_USE_RETENTION;
diff --git a/arch/arm/mach-hisi/platmcpm.c b/arch/arm/mach-hisi/platmcpm.c
index 4b653a8cb75c..a6c117622d67 100644
--- a/arch/arm/mach-hisi/platmcpm.c
+++ b/arch/arm/mach-hisi/platmcpm.c
@@ -327,7 +327,7 @@ static int __init hip04_smp_init(void)
*/
writel_relaxed(hip04_boot_method[0], relocation);
writel_relaxed(0xa5a5a5a5, relocation + 4); /* magic number */
- writel_relaxed(virt_to_phys(secondary_startup), relocation + 8);
+ writel_relaxed(__pa_symbol(secondary_startup), relocation + 8);
writel_relaxed(0, relocation + 12);
iounmap(relocation);
diff --git a/arch/arm/mach-hisi/platsmp.c b/arch/arm/mach-hisi/platsmp.c
index e1d67648d5d0..91bb02dec20f 100644
--- a/arch/arm/mach-hisi/platsmp.c
+++ b/arch/arm/mach-hisi/platsmp.c
@@ -28,7 +28,7 @@ void hi3xxx_set_cpu_jump(int cpu, void *jump_addr)
cpu = cpu_logical_map(cpu);
if (!cpu || !ctrl_base)
return;
- writel_relaxed(virt_to_phys(jump_addr), ctrl_base + ((cpu - 1) << 2));
+ writel_relaxed(__pa_symbol(jump_addr), ctrl_base + ((cpu - 1) << 2));
}
int hi3xxx_get_cpu_jump(int cpu)
@@ -118,7 +118,7 @@ static int hix5hd2_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
phys_addr_t jumpaddr;
- jumpaddr = virt_to_phys(secondary_startup);
+ jumpaddr = __pa_symbol(secondary_startup);
hix5hd2_set_scu_boot_addr(HIX5HD2_BOOT_ADDRESS, jumpaddr);
hix5hd2_set_cpu(cpu, true);
arch_send_wakeup_ipi_mask(cpumask_of(cpu));
@@ -156,7 +156,7 @@ static int hip01_boot_secondary(unsigned int cpu, struct task_struct *idle)
struct device_node *node;
- jumpaddr = virt_to_phys(secondary_startup);
+ jumpaddr = __pa_symbol(secondary_startup);
hip01_set_boot_addr(HIP01_BOOT_ADDRESS, jumpaddr);
node = of_find_compatible_node(NULL, NULL, "hisilicon,hip01-sysctrl");
diff --git a/arch/arm/mach-imx/platsmp.c b/arch/arm/mach-imx/platsmp.c
index 711dbbd5badd..c2d1b329fba1 100644
--- a/arch/arm/mach-imx/platsmp.c
+++ b/arch/arm/mach-imx/platsmp.c
@@ -117,7 +117,7 @@ static void __init ls1021a_smp_prepare_cpus(unsigned int max_cpus)
dcfg_base = of_iomap(np, 0);
BUG_ON(!dcfg_base);
- paddr = virt_to_phys(secondary_startup);
+ paddr = __pa_symbol(secondary_startup);
writel_relaxed(cpu_to_be32(paddr), dcfg_base + DCFG_CCSR_SCRATCHRW1);
iounmap(dcfg_base);
diff --git a/arch/arm/mach-imx/pm-imx6.c b/arch/arm/mach-imx/pm-imx6.c
index 1515e498d348..e61b1d1027e1 100644
--- a/arch/arm/mach-imx/pm-imx6.c
+++ b/arch/arm/mach-imx/pm-imx6.c
@@ -499,7 +499,7 @@ static int __init imx6q_suspend_init(const struct imx6_pm_socdata *socdata)
memset(suspend_ocram_base, 0, sizeof(*pm_info));
pm_info = suspend_ocram_base;
pm_info->pbase = ocram_pbase;
- pm_info->resume_addr = virt_to_phys(v7_cpu_resume);
+ pm_info->resume_addr = __pa_symbol(v7_cpu_resume);
pm_info->pm_info_size = sizeof(*pm_info);
/*
diff --git a/arch/arm/mach-imx/src.c b/arch/arm/mach-imx/src.c
index 70b083fe934a..495d85d0fe7e 100644
--- a/arch/arm/mach-imx/src.c
+++ b/arch/arm/mach-imx/src.c
@@ -99,7 +99,7 @@ void imx_enable_cpu(int cpu, bool enable)
void imx_set_cpu_jump(int cpu, void *jump_addr)
{
cpu = cpu_logical_map(cpu);
- writel_relaxed(virt_to_phys(jump_addr),
+ writel_relaxed(__pa_symbol(jump_addr),
src_base + SRC_GPR1 + cpu * 8);
}
diff --git a/arch/arm/mach-mediatek/platsmp.c b/arch/arm/mach-mediatek/platsmp.c
index b821e34474b6..726eb69bb655 100644
--- a/arch/arm/mach-mediatek/platsmp.c
+++ b/arch/arm/mach-mediatek/platsmp.c
@@ -122,7 +122,7 @@ static void __init __mtk_smp_prepare_cpus(unsigned int max_cpus, int trustzone)
* write the address of slave startup address into the system-wide
* jump register
*/
- writel_relaxed(virt_to_phys(secondary_startup_arm),
+ writel_relaxed(__pa_symbol(secondary_startup_arm),
mtk_smp_base + mtk_smp_info->jump_reg);
}
diff --git a/arch/arm/mach-mvebu/pm.c b/arch/arm/mach-mvebu/pm.c
index 2990c5269b18..c487be61d6d8 100644
--- a/arch/arm/mach-mvebu/pm.c
+++ b/arch/arm/mach-mvebu/pm.c
@@ -110,7 +110,7 @@ static void mvebu_pm_store_armadaxp_bootinfo(u32 *store_addr)
{
phys_addr_t resume_pc;
- resume_pc = virt_to_phys(armada_370_xp_cpu_resume);
+ resume_pc = __pa_symbol(armada_370_xp_cpu_resume);
/*
* The bootloader expects the first two words to be a magic
diff --git a/arch/arm/mach-mvebu/pmsu.c b/arch/arm/mach-mvebu/pmsu.c
index f39bd51bce18..27a78c80e5b1 100644
--- a/arch/arm/mach-mvebu/pmsu.c
+++ b/arch/arm/mach-mvebu/pmsu.c
@@ -112,7 +112,7 @@ static const struct of_device_id of_pmsu_table[] = {
void mvebu_pmsu_set_cpu_boot_addr(int hw_cpu, void *boot_addr)
{
- writel(virt_to_phys(boot_addr), pmsu_mp_base +
+ writel(__pa_symbol(boot_addr), pmsu_mp_base +
PMSU_BOOT_ADDR_REDIRECT_OFFSET(hw_cpu));
}
diff --git a/arch/arm/mach-mvebu/system-controller.c b/arch/arm/mach-mvebu/system-controller.c
index 76cbc82a7407..04d9ebe6a90a 100644
--- a/arch/arm/mach-mvebu/system-controller.c
+++ b/arch/arm/mach-mvebu/system-controller.c
@@ -153,7 +153,7 @@ void mvebu_system_controller_set_cpu_boot_addr(void *boot_addr)
if (of_machine_is_compatible("marvell,armada375"))
mvebu_armada375_smp_wa_init();
- writel(virt_to_phys(boot_addr), system_controller_base +
+ writel(__pa_symbol(boot_addr), system_controller_base +
mvebu_sc->resume_boot_addr);
}
#endif
diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c
index 1662071bb2cc..bd8089ff929f 100644
--- a/arch/arm/mach-omap2/control.c
+++ b/arch/arm/mach-omap2/control.c
@@ -315,15 +315,15 @@ void omap3_save_scratchpad_contents(void)
scratchpad_contents.boot_config_ptr = 0x0;
if (cpu_is_omap3630())
scratchpad_contents.public_restore_ptr =
- virt_to_phys(omap3_restore_3630);
+ __pa_symbol(omap3_restore_3630);
else if (omap_rev() != OMAP3430_REV_ES3_0 &&
omap_rev() != OMAP3430_REV_ES3_1 &&
omap_rev() != OMAP3430_REV_ES3_1_2)
scratchpad_contents.public_restore_ptr =
- virt_to_phys(omap3_restore);
+ __pa_symbol(omap3_restore);
else
scratchpad_contents.public_restore_ptr =
- virt_to_phys(omap3_restore_es3);
+ __pa_symbol(omap3_restore_es3);
if (omap_type() == OMAP2_DEVICE_TYPE_GP)
scratchpad_contents.secure_ram_restore_ptr = 0x0;
@@ -395,7 +395,7 @@ void omap3_save_scratchpad_contents(void)
sdrc_block_contents.flags = 0x0;
sdrc_block_contents.block_size = 0x0;
- arm_context_addr = virt_to_phys(omap3_arm_context);
+ arm_context_addr = __pa_symbol(omap3_arm_context);
/* Copy all the contents to the scratchpad location */
scratchpad_address = OMAP2_L4_IO_ADDRESS(OMAP343X_SCRATCHPAD);
diff --git a/arch/arm/mach-omap2/omap-mpuss-lowpower.c b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
index ad982465efd0..d1e03c03219e 100644
--- a/arch/arm/mach-omap2/omap-mpuss-lowpower.c
+++ b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
@@ -273,7 +273,7 @@ int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state)
cpu_clear_prev_logic_pwrst(cpu);
pwrdm_set_next_pwrst(pm_info->pwrdm, power_state);
pwrdm_set_logic_retst(pm_info->pwrdm, cpu_logic_state);
- set_cpu_wakeup_addr(cpu, virt_to_phys(omap_pm_ops.resume));
+ set_cpu_wakeup_addr(cpu, __pa_symbol(omap_pm_ops.resume));
omap_pm_ops.scu_prepare(cpu, power_state);
l2x0_pwrst_prepare(cpu, save_state);
@@ -325,7 +325,7 @@ int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state)
pwrdm_clear_all_prev_pwrst(pm_info->pwrdm);
pwrdm_set_next_pwrst(pm_info->pwrdm, power_state);
- set_cpu_wakeup_addr(cpu, virt_to_phys(omap_pm_ops.hotplug_restart));
+ set_cpu_wakeup_addr(cpu, __pa_symbol(omap_pm_ops.hotplug_restart));
omap_pm_ops.scu_prepare(cpu, power_state);
/*
@@ -459,9 +459,9 @@ void __init omap4_mpuss_early_init(void)
sar_base = omap4_get_sar_ram_base();
if (cpu_is_omap443x())
- startup_pa = virt_to_phys(omap4_secondary_startup);
+ startup_pa = __pa_symbol(omap4_secondary_startup);
else
- startup_pa = virt_to_phys(omap4460_secondary_startup);
+ startup_pa = __pa_symbol(omap4460_secondary_startup);
writel_relaxed(startup_pa, sar_base + CPU1_WAKEUP_NS_PA_ADDR_OFFSET);
}
diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c
index b4de3da6dffa..003353b0b794 100644
--- a/arch/arm/mach-omap2/omap-smp.c
+++ b/arch/arm/mach-omap2/omap-smp.c
@@ -316,9 +316,9 @@ static void __init omap4_smp_prepare_cpus(unsigned int max_cpus)
* A barrier is added to ensure that write buffer is drained
*/
if (omap_secure_apis_support())
- omap_auxcoreboot_addr(virt_to_phys(cfg.startup_addr));
+ omap_auxcoreboot_addr(__pa_symbol(cfg.startup_addr));
else
- writel_relaxed(virt_to_phys(cfg.startup_addr),
+ writel_relaxed(__pa_symbol(cfg.startup_addr),
base + OMAP_AUX_CORE_BOOT_1);
}
diff --git a/arch/arm/mach-prima2/platsmp.c b/arch/arm/mach-prima2/platsmp.c
index 0875b99add18..75ef5d4be554 100644
--- a/arch/arm/mach-prima2/platsmp.c
+++ b/arch/arm/mach-prima2/platsmp.c
@@ -65,7 +65,7 @@ static int sirfsoc_boot_secondary(unsigned int cpu, struct task_struct *idle)
* waiting for. This would wake up the secondary core from WFE
*/
#define SIRFSOC_CPU1_JUMPADDR_OFFSET 0x2bc
- __raw_writel(virt_to_phys(sirfsoc_secondary_startup),
+ __raw_writel(__pa_symbol(sirfsoc_secondary_startup),
clk_base + SIRFSOC_CPU1_JUMPADDR_OFFSET);
#define SIRFSOC_CPU1_WAKEMAGIC_OFFSET 0x2b8
diff --git a/arch/arm/mach-prima2/pm.c b/arch/arm/mach-prima2/pm.c
index 83e94c95e314..b0bcf1ff02dd 100644
--- a/arch/arm/mach-prima2/pm.c
+++ b/arch/arm/mach-prima2/pm.c
@@ -54,7 +54,7 @@ static void sirfsoc_set_sleep_mode(u32 mode)
static int sirfsoc_pre_suspend_power_off(void)
{
- u32 wakeup_entry = virt_to_phys(cpu_resume);
+ u32 wakeup_entry = __pa_symbol(cpu_resume);
sirfsoc_rtc_iobrg_writel(wakeup_entry, sirfsoc_pwrc_base +
SIRFSOC_PWRC_SCRATCH_PAD1);
diff --git a/arch/arm/mach-pxa/palmz72.c b/arch/arm/mach-pxa/palmz72.c
index 9c308de158c6..29630061e700 100644
--- a/arch/arm/mach-pxa/palmz72.c
+++ b/arch/arm/mach-pxa/palmz72.c
@@ -249,7 +249,7 @@ static int palmz72_pm_suspend(void)
store_ptr = *PALMZ72_SAVE_DWORD;
/* Setting PSPR to a proper value */
- PSPR = virt_to_phys(&palmz72_resume_info);
+ PSPR = __pa_symbol(&palmz72_resume_info);
return 0;
}
diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index 12b94357fbc1..d16ffcab0e45 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -85,7 +85,7 @@ static void pxa25x_cpu_pm_enter(suspend_state_t state)
static int pxa25x_cpu_pm_prepare(void)
{
/* set resume return address */
- PSPR = virt_to_phys(cpu_resume);
+ PSPR = __pa_symbol(cpu_resume);
return 0;
}
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index c0185c5c5a08..9b69be4e9fe3 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -168,7 +168,7 @@ static int pxa27x_cpu_pm_valid(suspend_state_t state)
static int pxa27x_cpu_pm_prepare(void)
{
/* set resume return address */
- PSPR = virt_to_phys(cpu_resume);
+ PSPR = __pa_symbol(cpu_resume);
return 0;
}
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index 87acc96388c7..0cc9f124c9ac 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -123,7 +123,7 @@ static void pxa3xx_cpu_pm_suspend(void)
PSPR = 0x5c014000;
/* overwrite with the resume address */
- *p = virt_to_phys(cpu_resume);
+ *p = __pa_symbol(cpu_resume);
cpu_suspend(0, pxa3xx_finish_suspend);
diff --git a/arch/arm/mach-realview/platsmp-dt.c b/arch/arm/mach-realview/platsmp-dt.c
index 70ca99eb52c6..c242423bf8db 100644
--- a/arch/arm/mach-realview/platsmp-dt.c
+++ b/arch/arm/mach-realview/platsmp-dt.c
@@ -76,7 +76,7 @@ static void __init realview_smp_prepare_cpus(unsigned int max_cpus)
}
/* Put the boot address in this magic register */
regmap_write(map, REALVIEW_SYS_FLAGSSET_OFFSET,
- virt_to_phys(versatile_secondary_startup));
+ __pa_symbol(versatile_secondary_startup));
}
static const struct smp_operations realview_dt_smp_ops __initconst = {
diff --git a/arch/arm/mach-rockchip/platsmp.c b/arch/arm/mach-rockchip/platsmp.c
index 4d827a069d49..3abafdbdd7f4 100644
--- a/arch/arm/mach-rockchip/platsmp.c
+++ b/arch/arm/mach-rockchip/platsmp.c
@@ -156,7 +156,7 @@ static int rockchip_boot_secondary(unsigned int cpu, struct task_struct *idle)
*/
mdelay(1); /* ensure the cpus other than cpu0 to startup */
- writel(virt_to_phys(secondary_startup), sram_base_addr + 8);
+ writel(__pa_symbol(secondary_startup), sram_base_addr + 8);
writel(0xDEADBEAF, sram_base_addr + 4);
dsb_sev();
}
@@ -195,7 +195,7 @@ static int __init rockchip_smp_prepare_sram(struct device_node *node)
}
/* set the boot function for the sram code */
- rockchip_boot_fn = virt_to_phys(secondary_startup);
+ rockchip_boot_fn = __pa_symbol(secondary_startup);
/* copy the trampoline to sram, that runs during startup of the core */
memcpy(sram_base_addr, &rockchip_secondary_trampoline, trampoline_sz);
diff --git a/arch/arm/mach-rockchip/pm.c b/arch/arm/mach-rockchip/pm.c
index bee8c8051929..0592534e0b88 100644
--- a/arch/arm/mach-rockchip/pm.c
+++ b/arch/arm/mach-rockchip/pm.c
@@ -62,7 +62,7 @@ static inline u32 rk3288_l2_config(void)
static void rk3288_config_bootdata(void)
{
rkpm_bootdata_cpusp = rk3288_bootram_phy + (SZ_4K - 8);
- rkpm_bootdata_cpu_code = virt_to_phys(cpu_resume);
+ rkpm_bootdata_cpu_code = __pa_symbol(cpu_resume);
rkpm_bootdata_l2ctlr_f = 1;
rkpm_bootdata_l2ctlr = rk3288_l2_config();
diff --git a/arch/arm/mach-s3c24xx/mach-jive.c b/arch/arm/mach-s3c24xx/mach-jive.c
index 7d99fe8f6157..4f2ffca88e6c 100644
--- a/arch/arm/mach-s3c24xx/mach-jive.c
+++ b/arch/arm/mach-s3c24xx/mach-jive.c
@@ -483,7 +483,7 @@ static int jive_pm_suspend(void)
* correct address to resume from. */
__raw_writel(0x2BED, S3C2412_INFORM0);
- __raw_writel(virt_to_phys(s3c_cpu_resume), S3C2412_INFORM1);
+ __raw_writel(__pa_symbol(s3c_cpu_resume), S3C2412_INFORM1);
return 0;
}
diff --git a/arch/arm/mach-s3c24xx/pm-s3c2410.c b/arch/arm/mach-s3c24xx/pm-s3c2410.c
index 20e481d8a33a..a4588daeddb0 100644
--- a/arch/arm/mach-s3c24xx/pm-s3c2410.c
+++ b/arch/arm/mach-s3c24xx/pm-s3c2410.c
@@ -45,7 +45,7 @@ static void s3c2410_pm_prepare(void)
{
/* ensure at least GSTATUS3 has the resume address */
- __raw_writel(virt_to_phys(s3c_cpu_resume), S3C2410_GSTATUS3);
+ __raw_writel(__pa_symbol(s3c_cpu_resume), S3C2410_GSTATUS3);
S3C_PMDBG("GSTATUS3 0x%08x\n", __raw_readl(S3C2410_GSTATUS3));
S3C_PMDBG("GSTATUS4 0x%08x\n", __raw_readl(S3C2410_GSTATUS4));
diff --git a/arch/arm/mach-s3c24xx/pm-s3c2416.c b/arch/arm/mach-s3c24xx/pm-s3c2416.c
index c0e328e37bd6..b5bbf0d5985c 100644
--- a/arch/arm/mach-s3c24xx/pm-s3c2416.c
+++ b/arch/arm/mach-s3c24xx/pm-s3c2416.c
@@ -48,7 +48,7 @@ static void s3c2416_pm_prepare(void)
* correct address to resume from.
*/
__raw_writel(0x2BED, S3C2412_INFORM0);
- __raw_writel(virt_to_phys(s3c_cpu_resume), S3C2412_INFORM1);
+ __raw_writel(__pa_symbol(s3c_cpu_resume), S3C2412_INFORM1);
}
static int s3c2416_pm_add(struct device *dev, struct subsys_interface *sif)
diff --git a/arch/arm/mach-s3c64xx/pm.c b/arch/arm/mach-s3c64xx/pm.c
index 59d91b83b03d..945a9d1e1a71 100644
--- a/arch/arm/mach-s3c64xx/pm.c
+++ b/arch/arm/mach-s3c64xx/pm.c
@@ -304,7 +304,7 @@ static void s3c64xx_pm_prepare(void)
wake_irqs, ARRAY_SIZE(wake_irqs));
/* store address of resume. */
- __raw_writel(virt_to_phys(s3c_cpu_resume), S3C64XX_INFORM0);
+ __raw_writel(__pa_symbol(s3c_cpu_resume), S3C64XX_INFORM0);
/* ensure previous wakeup state is cleared before sleeping */
__raw_writel(__raw_readl(S3C64XX_WAKEUP_STAT), S3C64XX_WAKEUP_STAT);
diff --git a/arch/arm/mach-s5pv210/pm.c b/arch/arm/mach-s5pv210/pm.c
index 21b4b13c5ab7..2d5f08015e34 100644
--- a/arch/arm/mach-s5pv210/pm.c
+++ b/arch/arm/mach-s5pv210/pm.c
@@ -69,7 +69,7 @@ static void s5pv210_pm_prepare(void)
__raw_writel(s5pv210_irqwake_intmask, S5P_WAKEUP_MASK);
/* ensure at least INFORM0 has the resume address */
- __raw_writel(virt_to_phys(s5pv210_cpu_resume), S5P_INFORM0);
+ __raw_writel(__pa_symbol(s5pv210_cpu_resume), S5P_INFORM0);
tmp = __raw_readl(S5P_SLEEP_CFG);
tmp &= ~(S5P_SLEEP_CFG_OSC_EN | S5P_SLEEP_CFG_USBOSC_EN);
diff --git a/arch/arm/mach-sa1100/pm.c b/arch/arm/mach-sa1100/pm.c
index 34853d5dfda2..9a7079f565bd 100644
--- a/arch/arm/mach-sa1100/pm.c
+++ b/arch/arm/mach-sa1100/pm.c
@@ -73,7 +73,7 @@ static int sa11x0_pm_enter(suspend_state_t state)
RCSR = RCSR_HWR | RCSR_SWR | RCSR_WDR | RCSR_SMR;
/* set resume return address */
- PSPR = virt_to_phys(cpu_resume);
+ PSPR = __pa_symbol(cpu_resume);
/* go zzz */
cpu_suspend(0, sa1100_finish_suspend);
diff --git a/arch/arm/mach-shmobile/platsmp-apmu.c b/arch/arm/mach-shmobile/platsmp-apmu.c
index 0c6bb458b7a4..71729b8d1900 100644
--- a/arch/arm/mach-shmobile/platsmp-apmu.c
+++ b/arch/arm/mach-shmobile/platsmp-apmu.c
@@ -171,7 +171,7 @@ static void apmu_parse_dt(void (*fn)(struct resource *res, int cpu, int bit))
static void __init shmobile_smp_apmu_setup_boot(void)
{
/* install boot code shared by all CPUs */
- shmobile_boot_fn = virt_to_phys(shmobile_smp_boot);
+ shmobile_boot_fn = __pa_symbol(shmobile_smp_boot);
}
void __init shmobile_smp_apmu_prepare_cpus(unsigned int max_cpus,
@@ -185,7 +185,7 @@ void __init shmobile_smp_apmu_prepare_cpus(unsigned int max_cpus,
int shmobile_smp_apmu_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
/* For this particular CPU register boot vector */
- shmobile_smp_hook(cpu, virt_to_phys(secondary_startup), 0);
+ shmobile_smp_hook(cpu, __pa_symbol(secondary_startup), 0);
return apmu_wrap(cpu, apmu_power_on);
}
@@ -301,7 +301,7 @@ int shmobile_smp_apmu_cpu_kill(unsigned int cpu)
#if defined(CONFIG_SUSPEND)
static int shmobile_smp_apmu_do_suspend(unsigned long cpu)
{
- shmobile_smp_hook(cpu, virt_to_phys(cpu_resume), 0);
+ shmobile_smp_hook(cpu, __pa_symbol(cpu_resume), 0);
shmobile_smp_apmu_cpu_shutdown(cpu);
cpu_do_idle(); /* WFI selects Core Standby */
return 1;
diff --git a/arch/arm/mach-shmobile/platsmp-scu.c b/arch/arm/mach-shmobile/platsmp-scu.c
index d1ecaf37d142..f1a1efde4beb 100644
--- a/arch/arm/mach-shmobile/platsmp-scu.c
+++ b/arch/arm/mach-shmobile/platsmp-scu.c
@@ -24,7 +24,7 @@ static void __iomem *shmobile_scu_base;
static int shmobile_scu_cpu_prepare(unsigned int cpu)
{
/* For this particular CPU register SCU SMP boot vector */
- shmobile_smp_hook(cpu, virt_to_phys(shmobile_boot_scu),
+ shmobile_smp_hook(cpu, __pa_symbol(shmobile_boot_scu),
shmobile_scu_base_phys);
return 0;
}
@@ -33,7 +33,7 @@ void __init shmobile_smp_scu_prepare_cpus(phys_addr_t scu_base_phys,
unsigned int max_cpus)
{
/* install boot code shared by all CPUs */
- shmobile_boot_fn = virt_to_phys(shmobile_smp_boot);
+ shmobile_boot_fn = __pa_symbol(shmobile_smp_boot);
/* enable SCU and cache coherency on booting CPU */
shmobile_scu_base_phys = scu_base_phys;
diff --git a/arch/arm/mach-socfpga/platsmp.c b/arch/arm/mach-socfpga/platsmp.c
index 07945748b571..0ee76772b507 100644
--- a/arch/arm/mach-socfpga/platsmp.c
+++ b/arch/arm/mach-socfpga/platsmp.c
@@ -40,7 +40,7 @@ static int socfpga_boot_secondary(unsigned int cpu, struct task_struct *idle)
memcpy(phys_to_virt(0), &secondary_trampoline, trampoline_size);
- writel(virt_to_phys(secondary_startup),
+ writel(__pa_symbol(secondary_startup),
sys_manager_base_addr + (socfpga_cpu1start_addr & 0x000000ff));
flush_cache_all();
@@ -63,7 +63,7 @@ static int socfpga_a10_boot_secondary(unsigned int cpu, struct task_struct *idle
SOCFPGA_A10_RSTMGR_MODMPURST);
memcpy(phys_to_virt(0), &secondary_trampoline, trampoline_size);
- writel(virt_to_phys(secondary_startup),
+ writel(__pa_symbol(secondary_startup),
sys_manager_base_addr + (socfpga_cpu1start_addr & 0x00000fff));
flush_cache_all();
diff --git a/arch/arm/mach-spear/platsmp.c b/arch/arm/mach-spear/platsmp.c
index 8d1e2d551786..39038a03836a 100644
--- a/arch/arm/mach-spear/platsmp.c
+++ b/arch/arm/mach-spear/platsmp.c
@@ -117,7 +117,7 @@ static void __init spear13xx_smp_prepare_cpus(unsigned int max_cpus)
* (presently it is in SRAM). The BootMonitor waits until it receives a
* soft interrupt, and then the secondary CPU branches to this address.
*/
- __raw_writel(virt_to_phys(spear13xx_secondary_startup), SYS_LOCATION);
+ __raw_writel(__pa_symbol(spear13xx_secondary_startup), SYS_LOCATION);
}
const struct smp_operations spear13xx_smp_ops __initconst = {
diff --git a/arch/arm/mach-sti/platsmp.c b/arch/arm/mach-sti/platsmp.c
index ea5a2277ee46..231f19e17436 100644
--- a/arch/arm/mach-sti/platsmp.c
+++ b/arch/arm/mach-sti/platsmp.c
@@ -103,7 +103,7 @@ static void __init sti_smp_prepare_cpus(unsigned int max_cpus)
u32 __iomem *cpu_strt_ptr;
u32 release_phys;
int cpu;
- unsigned long entry_pa = virt_to_phys(sti_secondary_startup);
+ unsigned long entry_pa = __pa_symbol(sti_secondary_startup);
np = of_find_compatible_node(NULL, NULL, "arm,cortex-a9-scu");
diff --git a/arch/arm/mach-sunxi/platsmp.c b/arch/arm/mach-sunxi/platsmp.c
index 6642267812c9..8fb5088464db 100644
--- a/arch/arm/mach-sunxi/platsmp.c
+++ b/arch/arm/mach-sunxi/platsmp.c
@@ -80,7 +80,7 @@ static int sun6i_smp_boot_secondary(unsigned int cpu,
spin_lock(&cpu_lock);
/* Set CPU boot address */
- writel(virt_to_phys(secondary_startup),
+ writel(__pa_symbol(secondary_startup),
cpucfg_membase + CPUCFG_PRIVATE0_REG);
/* Assert the CPU core in reset */
@@ -162,7 +162,7 @@ static int sun8i_smp_boot_secondary(unsigned int cpu,
spin_lock(&cpu_lock);
/* Set CPU boot address */
- writel(virt_to_phys(secondary_startup),
+ writel(__pa_symbol(secondary_startup),
cpucfg_membase + CPUCFG_PRIVATE0_REG);
/* Assert the CPU core in reset */
diff --git a/arch/arm/mach-tango/platsmp.c b/arch/arm/mach-tango/platsmp.c
index 98c62a4a8623..2f0c6c050fed 100644
--- a/arch/arm/mach-tango/platsmp.c
+++ b/arch/arm/mach-tango/platsmp.c
@@ -5,7 +5,7 @@
static int tango_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
- tango_set_aux_boot_addr(virt_to_phys(secondary_startup));
+ tango_set_aux_boot_addr(__pa_symbol(secondary_startup));
tango_start_aux_core(cpu);
return 0;
}
diff --git a/arch/arm/mach-tango/pm.c b/arch/arm/mach-tango/pm.c
index b05c6d6f99d0..406c0814eb6e 100644
--- a/arch/arm/mach-tango/pm.c
+++ b/arch/arm/mach-tango/pm.c
@@ -5,7 +5,7 @@
static int tango_pm_powerdown(unsigned long arg)
{
- tango_suspend(virt_to_phys(cpu_resume));
+ tango_suspend(__pa_symbol(cpu_resume));
return -EIO; /* tango_suspend has failed */
}
diff --git a/arch/arm/mach-tegra/reset.c b/arch/arm/mach-tegra/reset.c
index 6fd9db54887e..dc558892753c 100644
--- a/arch/arm/mach-tegra/reset.c
+++ b/arch/arm/mach-tegra/reset.c
@@ -94,14 +94,14 @@ void __init tegra_cpu_reset_handler_init(void)
__tegra_cpu_reset_handler_data[TEGRA_RESET_MASK_PRESENT] =
*((u32 *)cpu_possible_mask);
__tegra_cpu_reset_handler_data[TEGRA_RESET_STARTUP_SECONDARY] =
- virt_to_phys((void *)secondary_startup);
+ __pa_symbol((void *)secondary_startup);
#endif
#ifdef CONFIG_PM_SLEEP
__tegra_cpu_reset_handler_data[TEGRA_RESET_STARTUP_LP1] =
TEGRA_IRAM_LPx_RESUME_AREA;
__tegra_cpu_reset_handler_data[TEGRA_RESET_STARTUP_LP2] =
- virt_to_phys((void *)tegra_resume);
+ __pa_symbol((void *)tegra_resume);
#endif
tegra_cpu_reset_handler_enable();
diff --git a/arch/arm/mach-ux500/platsmp.c b/arch/arm/mach-ux500/platsmp.c
index 8f2f615ff958..8c8f26389067 100644
--- a/arch/arm/mach-ux500/platsmp.c
+++ b/arch/arm/mach-ux500/platsmp.c
@@ -54,7 +54,7 @@ static void wakeup_secondary(void)
* backup ram register at offset 0x1FF0, which is what boot rom code
* is waiting for. This will wake up the secondary core from WFE.
*/
- writel(virt_to_phys(secondary_startup),
+ writel(__pa_symbol(secondary_startup),
backupram + UX500_CPU1_JUMPADDR_OFFSET);
writel(0xA1FEED01,
backupram + UX500_CPU1_WAKEMAGIC_OFFSET);
diff --git a/arch/arm/mach-vexpress/dcscb.c b/arch/arm/mach-vexpress/dcscb.c
index 5cedcf572104..ee2a0faafaa1 100644
--- a/arch/arm/mach-vexpress/dcscb.c
+++ b/arch/arm/mach-vexpress/dcscb.c
@@ -166,7 +166,7 @@ static int __init dcscb_init(void)
* Future entries into the kernel can now go
* through the cluster entry vectors.
*/
- vexpress_flags_set(virt_to_phys(mcpm_entry_point));
+ vexpress_flags_set(__pa_symbol(mcpm_entry_point));
return 0;
}
diff --git a/arch/arm/mach-vexpress/platsmp.c b/arch/arm/mach-vexpress/platsmp.c
index 8b8d0724f6c6..575588633a36 100644
--- a/arch/arm/mach-vexpress/platsmp.c
+++ b/arch/arm/mach-vexpress/platsmp.c
@@ -61,7 +61,7 @@ static void __init vexpress_smp_dt_prepare_cpus(unsigned int max_cpus)
* until it receives a soft interrupt, and then the
* secondary CPU branches to this address.
*/
- vexpress_flags_set(virt_to_phys(versatile_secondary_startup));
+ vexpress_flags_set(__pa_symbol(versatile_secondary_startup));
}
const struct smp_operations vexpress_smp_dt_ops __initconst = {
diff --git a/arch/arm/mach-vexpress/tc2_pm.c b/arch/arm/mach-vexpress/tc2_pm.c
index 1aa4ccece69f..9b5f3c427086 100644
--- a/arch/arm/mach-vexpress/tc2_pm.c
+++ b/arch/arm/mach-vexpress/tc2_pm.c
@@ -54,7 +54,7 @@ static int tc2_pm_cpu_powerup(unsigned int cpu, unsigned int cluster)
if (cluster >= TC2_CLUSTERS || cpu >= tc2_nr_cpus[cluster])
return -EINVAL;
ve_spc_set_resume_addr(cluster, cpu,
- virt_to_phys(mcpm_entry_point));
+ __pa_symbol(mcpm_entry_point));
ve_spc_cpu_wakeup_irq(cluster, cpu, true);
return 0;
}
@@ -159,7 +159,7 @@ static int tc2_pm_wait_for_powerdown(unsigned int cpu, unsigned int cluster)
static void tc2_pm_cpu_suspend_prepare(unsigned int cpu, unsigned int cluster)
{
- ve_spc_set_resume_addr(cluster, cpu, virt_to_phys(mcpm_entry_point));
+ ve_spc_set_resume_addr(cluster, cpu, __pa_symbol(mcpm_entry_point));
}
static void tc2_pm_cpu_is_up(unsigned int cpu, unsigned int cluster)
diff --git a/arch/arm/mach-zx/platsmp.c b/arch/arm/mach-zx/platsmp.c
index 0297f92084e0..afb9a82dedc3 100644
--- a/arch/arm/mach-zx/platsmp.c
+++ b/arch/arm/mach-zx/platsmp.c
@@ -76,7 +76,7 @@ void __init zx_smp_prepare_cpus(unsigned int max_cpus)
* until it receives a soft interrupt, and then the
* secondary CPU branches to this address.
*/
- __raw_writel(virt_to_phys(zx_secondary_startup),
+ __raw_writel(__pa_symbol(zx_secondary_startup),
aonsysctrl_base + AON_SYS_CTRL_RESERVED1);
iounmap(aonsysctrl_base);
@@ -94,7 +94,7 @@ void __init zx_smp_prepare_cpus(unsigned int max_cpus)
/* Map the first 4 KB IRAM for suspend usage */
sys_iram = __arm_ioremap_exec(ZX_IRAM_BASE, PAGE_SIZE, false);
- zx_secondary_startup_pa = virt_to_phys(zx_secondary_startup);
+ zx_secondary_startup_pa = __pa_symbol(zx_secondary_startup);
fncpy(sys_iram, &zx_resume_jump, zx_suspend_iram_sz);
}
diff --git a/arch/arm/mach-zynq/platsmp.c b/arch/arm/mach-zynq/platsmp.c
index 7cd9865bdeb7..caa6d5fe9078 100644
--- a/arch/arm/mach-zynq/platsmp.c
+++ b/arch/arm/mach-zynq/platsmp.c
@@ -89,7 +89,7 @@ EXPORT_SYMBOL(zynq_cpun_start);
static int zynq_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
- return zynq_cpun_start(virt_to_phys(secondary_startup), cpu);
+ return zynq_cpun_start(__pa_symbol(secondary_startup), cpu);
}
/*
--
2.9.3
^ permalink raw reply related [flat|nested] 35+ messages in thread
* Re: [PATCHv5 06/11] arm64: Use __pa_symbol for kernel symbols
2016-12-06 23:50 ` [PATCHv5 06/11] arm64: Use __pa_symbol for kernel symbols Laura Abbott
@ 2016-12-13 12:31 ` Mark Rutland
0 siblings, 0 replies; 35+ messages in thread
From: Mark Rutland @ 2016-12-13 12:31 UTC (permalink / raw)
To: Laura Abbott
Cc: Ard Biesheuvel, Will Deacon, Catalin Marinas, Christoffer Dall,
Marc Zyngier, Lorenzo Pieralisi, Thomas Gleixner, Ingo Molnar,
H. Peter Anvin, x86, linux-kernel, linux-mm, Andrew Morton,
Marek Szyprowski, Joonsoo Kim, linux-arm-kernel
On Tue, Dec 06, 2016 at 03:50:52PM -0800, Laura Abbott wrote:
>
> __pa_symbol is technically the marcro that should be used for kernel
> symbols. Switch to this as a pre-requisite for DEBUG_VIRTUAL which
> will do bounds checking.
>
> Tested-by: James Morse <james.morse@arm.com>
> Signed-off-by: Laura Abbott <labbott@redhat.com>
This looks good to me; I have a (very minor) nit below, but either way:
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
> diff --git a/arch/arm64/kernel/acpi_parking_protocol.c b/arch/arm64/kernel/acpi_parking_protocol.c
> index a32b401..ca880ce 100644
> --- a/arch/arm64/kernel/acpi_parking_protocol.c
> +++ b/arch/arm64/kernel/acpi_parking_protocol.c
> @@ -18,6 +18,7 @@
> */
> #include <linux/acpi.h>
> #include <linux/types.h>
> +#include <linux/mm.h>
Nit: please keep includes alphabetically ordered, at least where they're
ordered today. Some files are already a mess, but it would be nice to
keep the well-ordered ones ordered.
Thanks,
Mark.
^ permalink raw reply [flat|nested] 35+ messages in thread
* Re: [PATCHv5 09/11] mm/kasan: Switch to using __pa_symbol and lm_alias
2016-12-06 23:50 ` [PATCHv5 09/11] mm/kasan: Switch to using __pa_symbol and lm_alias Laura Abbott
@ 2016-12-13 12:31 ` Mark Rutland
0 siblings, 0 replies; 35+ messages in thread
From: Mark Rutland @ 2016-12-13 12:31 UTC (permalink / raw)
To: Laura Abbott
Cc: Ard Biesheuvel, Will Deacon, Catalin Marinas, Andrey Ryabinin,
Thomas Gleixner, Ingo Molnar, H. Peter Anvin, x86, linux-kernel,
linux-mm, Andrew Morton, Marek Szyprowski, Joonsoo Kim,
linux-arm-kernel, Alexander Potapenko, Dmitry Vyukov, kasan-dev
On Tue, Dec 06, 2016 at 03:50:55PM -0800, Laura Abbott wrote:
>
> __pa_symbol is the correct API to find the physical address of symbols.
> Switch to it to allow for debugging APIs to work correctly. Other
> functions such as p*d_populate may call __pa internally. Ensure that the
> address passed is in the linear region by calling lm_alias.
>
> Reviewed-by: Mark Rutland <mark.rutland@arm.com>
> Tested-by: Mark Rutland <mark.rutland@arm.com>
> Signed-off-by: Laura Abbott <labbott@redhat.com>
> ---
> v5: Add missing lm_alias call
> ---
> mm/kasan/kasan_init.c | 15 ++++++++-------
> 1 file changed, 8 insertions(+), 7 deletions(-)
>
> diff --git a/mm/kasan/kasan_init.c b/mm/kasan/kasan_init.c
> index 3f9a41c..922f459 100644
> --- a/mm/kasan/kasan_init.c
> +++ b/mm/kasan/kasan_init.c
> @@ -16,6 +16,7 @@
> #include <linux/kernel.h>
> #include <linux/memblock.h>
> #include <linux/pfn.h>
> +#include <linux/mm.h>
Nit: include ordering.
Regardless, my tags above still stand!
Thanks,
Mark.
^ permalink raw reply [flat|nested] 35+ messages in thread
* Re: [PATCHv5 00/11] CONFIG_DEBUG_VIRTUAL for arm64
2016-12-06 23:50 [PATCHv5 00/11] CONFIG_DEBUG_VIRTUAL for arm64 Laura Abbott
` (11 preceding siblings ...)
2016-12-08 18:59 ` [PATCH v2 0/4] ARM: " Florian Fainelli
@ 2016-12-13 13:50 ` Mark Rutland
12 siblings, 0 replies; 35+ messages in thread
From: Mark Rutland @ 2016-12-13 13:50 UTC (permalink / raw)
To: Laura Abbott
Cc: Ard Biesheuvel, Will Deacon, Catalin Marinas, Thomas Gleixner,
Ingo Molnar, H. Peter Anvin, x86, linux-kernel, linux-mm,
Andrew Morton, Marek Szyprowski, Joonsoo Kim, linux-arm-kernel,
Christoffer Dall, Marc Zyngier, Lorenzo Pieralisi, xen-devel,
Boris Ostrovsky, David Vrabel, Juergen Gross, Eric Biederman,
kexec, Alexander Potapenko, Dmitry Vyukov, kasan-dev,
Andrey Ryabinin, Kees Cook
On Tue, Dec 06, 2016 at 03:50:46PM -0800, Laura Abbott wrote:
> Hi,
>
> This is v5 of the series to add CONFIG_DEBUG_VIRTUAL for arm64. This mostly
> contains minor fixups including adding a few extra headers around and splitting
> things out into a few more sub-patches.
>
> With a few more acks I think this should be ready to go. More testing is
> always appreciated though.
I've given the whole series a go with kasan, kexec, and hibernate (using
test_resume with the disk target), and everything looks happy. So FWIW,
for the series:
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Hopefully this can be queued soon for v4.11!
Thanks,
Mark.
^ permalink raw reply [flat|nested] 35+ messages in thread
* Re: [PATCH v3 0/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL
2016-12-09 23:36 ` [PATCH v3 0/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Florian Fainelli
` (3 preceding siblings ...)
2016-12-09 23:36 ` [PATCH v3 4/4] ARM: treewide: Replace uses of virt_to_phys with __pa_symbol Florian Fainelli
@ 2016-12-13 20:29 ` Florian Fainelli
2016-12-26 20:38 ` [PATCH v4 " Florian Fainelli
5 siblings, 0 replies; 35+ messages in thread
From: Florian Fainelli @ 2016-12-13 20:29 UTC (permalink / raw)
To: linux-arm-kernel
Cc: linux, nicolas.pitre, panand, chris.brandt, arnd,
jonathan.austin, pawel.moll, vladimir.murzin, mark.rutland,
ard.biesheuvel, keescook, matt, labbott, kirill.shutemov, ben,
js07.lee, stefan, linux-kernel, linux-mtd, cyrille.pitchen,
richard, boris.brezillon, computersforpeace, dwmw2
On 12/09/2016 03:36 PM, Florian Fainelli wrote:
> This patch series builds on top of Laura's [PATCHv5 00/10] CONFIG_DEBUG_VIRTUAL
> for arm64 to add support for CONFIG_DEBUG_VIRTUAL for ARM.
>
> This was tested on a Brahma B15 platform (ARMv7 + HIGHMEM + LPAE).
>
> Note that the treewide changes would involve a huge CC list, which
> is why it has been purposely trimmed to just focusing on the DEBUG_VIRTUAL
> aspect.
Any comments on this? How would you approach merging these patches?
Thank you!
>
> Changes in v3:
>
> - fix build failures reported by Kbuild test robot
>
> Changes in v2:
>
> - Modified MTD LART driver not to create symbol conflicts with
> KERNEL_START
> - Fixed patch that defines and uses KERNEL_START/END
> - Fixed __pa_symbol()'s definition
> - Inline __pa_symbol() check wihtin the VIRTUAL_BUG_ON statement
> - Simplified check for virtual addresses
> - Added a tree-wide patch changing SMP/PM implementations to use
> __pa_symbol(), build tested against multi_v{5,7}_defconfig
>
> Thanks!
>
> Florian Fainelli (4):
> mtd: lart: Rename partition defines to be prefixed with PART_
> ARM: Define KERNEL_START and KERNEL_END
> ARM: Add support for CONFIG_DEBUG_VIRTUAL
> ARM: treewide: Replace uses of virt_to_phys with __pa_symbol
>
> arch/arm/Kconfig | 1 +
> arch/arm/boot/compressed/piggy.xzkern | Bin 0 -> 2998584 bytes
> arch/arm/common/mcpm_entry.c | 12 +++----
> arch/arm/include/asm/memory.h | 23 ++++++++++++--
> arch/arm/mach-alpine/platsmp.c | 2 +-
> arch/arm/mach-axxia/platsmp.c | 2 +-
> arch/arm/mach-bcm/bcm63xx_smp.c | 2 +-
> arch/arm/mach-bcm/platsmp-brcmstb.c | 2 +-
> arch/arm/mach-bcm/platsmp.c | 4 +--
> arch/arm/mach-berlin/platsmp.c | 2 +-
> arch/arm/mach-exynos/firmware.c | 4 +--
> arch/arm/mach-exynos/mcpm-exynos.c | 2 +-
> arch/arm/mach-exynos/platsmp.c | 4 +--
> arch/arm/mach-exynos/pm.c | 6 ++--
> arch/arm/mach-exynos/suspend.c | 6 ++--
> arch/arm/mach-hisi/platmcpm.c | 2 +-
> arch/arm/mach-hisi/platsmp.c | 6 ++--
> arch/arm/mach-imx/platsmp.c | 2 +-
> arch/arm/mach-imx/pm-imx6.c | 2 +-
> arch/arm/mach-imx/src.c | 2 +-
> arch/arm/mach-mediatek/platsmp.c | 2 +-
> arch/arm/mach-mvebu/pm.c | 2 +-
> arch/arm/mach-mvebu/pmsu.c | 2 +-
> arch/arm/mach-mvebu/system-controller.c | 2 +-
> arch/arm/mach-omap2/control.c | 8 ++---
> arch/arm/mach-omap2/omap-mpuss-lowpower.c | 8 ++---
> arch/arm/mach-omap2/omap-smp.c | 4 +--
> arch/arm/mach-prima2/platsmp.c | 2 +-
> arch/arm/mach-prima2/pm.c | 2 +-
> arch/arm/mach-pxa/palmz72.c | 2 +-
> arch/arm/mach-pxa/pxa25x.c | 2 +-
> arch/arm/mach-pxa/pxa27x.c | 2 +-
> arch/arm/mach-pxa/pxa3xx.c | 2 +-
> arch/arm/mach-realview/platsmp-dt.c | 2 +-
> arch/arm/mach-rockchip/platsmp.c | 4 +--
> arch/arm/mach-rockchip/pm.c | 2 +-
> arch/arm/mach-s3c24xx/mach-jive.c | 2 +-
> arch/arm/mach-s3c24xx/pm-s3c2410.c | 2 +-
> arch/arm/mach-s3c24xx/pm-s3c2416.c | 2 +-
> arch/arm/mach-s3c64xx/pm.c | 2 +-
> arch/arm/mach-s5pv210/pm.c | 2 +-
> arch/arm/mach-sa1100/pm.c | 2 +-
> arch/arm/mach-shmobile/platsmp-apmu.c | 6 ++--
> arch/arm/mach-shmobile/platsmp-scu.c | 4 +--
> arch/arm/mach-socfpga/platsmp.c | 4 +--
> arch/arm/mach-spear/platsmp.c | 2 +-
> arch/arm/mach-sti/platsmp.c | 2 +-
> arch/arm/mach-sunxi/platsmp.c | 4 +--
> arch/arm/mach-tango/platsmp.c | 2 +-
> arch/arm/mach-tango/pm.c | 2 +-
> arch/arm/mach-tegra/reset.c | 4 +--
> arch/arm/mach-ux500/platsmp.c | 2 +-
> arch/arm/mach-vexpress/dcscb.c | 2 +-
> arch/arm/mach-vexpress/platsmp.c | 2 +-
> arch/arm/mach-vexpress/tc2_pm.c | 4 +--
> arch/arm/mach-zx/platsmp.c | 4 +--
> arch/arm/mach-zynq/platsmp.c | 2 +-
> arch/arm/mm/Makefile | 1 +
> arch/arm/mm/init.c | 7 ++--
> arch/arm/mm/mmu.c | 6 +---
> arch/arm/mm/physaddr.c | 51 ++++++++++++++++++++++++++++++
> drivers/mtd/devices/lart.c | 24 +++++++-------
> 62 files changed, 173 insertions(+), 108 deletions(-)
> create mode 100644 arch/arm/boot/compressed/piggy.xzkern
> create mode 100644 arch/arm/mm/physaddr.c
>
--
Florian
^ permalink raw reply [flat|nested] 35+ messages in thread
* Re: [PATCH v3 1/4] mtd: lart: Rename partition defines to be prefixed with PART_
2016-12-09 23:36 ` [PATCH v3 1/4] mtd: lart: Rename partition defines to be prefixed with PART_ Florian Fainelli
@ 2016-12-14 7:08 ` Boris Brezillon
0 siblings, 0 replies; 35+ messages in thread
From: Boris Brezillon @ 2016-12-14 7:08 UTC (permalink / raw)
To: Florian Fainelli
Cc: linux-arm-kernel, nicolas.pitre, mark.rutland, matt, stefan,
chris.brandt, linux-mtd, cyrille.pitchen, panand, pawel.moll,
richard, linux, ben, vladimir.murzin, keescook, arnd, labbott,
jonathan.austin, ard.biesheuvel, linux-kernel, computersforpeace,
dwmw2, kirill.shutemov, js07.lee
On Fri, 9 Dec 2016 15:36:25 -0800
Florian Fainelli <f.fainelli@gmail.com> wrote:
> In preparation for defining KERNEL_START on ARM, rename KERNEL_START to
> PART_KERNEL_START, and to be consistent, do this for all
> partition-related constants.
>
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
> ---
> drivers/mtd/devices/lart.c | 24 ++++++++++++------------
> 1 file changed, 12 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/mtd/devices/lart.c b/drivers/mtd/devices/lart.c
> index 82bd00af5cc3..268aae45b514 100644
> --- a/drivers/mtd/devices/lart.c
> +++ b/drivers/mtd/devices/lart.c
> @@ -75,18 +75,18 @@ static char module_name[] = "lart";
>
> /* blob */
> #define NUM_BLOB_BLOCKS FLASH_NUMBLOCKS_16m_PARAM
> -#define BLOB_START 0x00000000
> -#define BLOB_LEN (NUM_BLOB_BLOCKS * FLASH_BLOCKSIZE_PARAM)
> +#define PART_BLOB_START 0x00000000
> +#define PART_BLOB_LEN (NUM_BLOB_BLOCKS * FLASH_BLOCKSIZE_PARAM)
>
> /* kernel */
> #define NUM_KERNEL_BLOCKS 7
> -#define KERNEL_START (BLOB_START + BLOB_LEN)
> -#define KERNEL_LEN (NUM_KERNEL_BLOCKS * FLASH_BLOCKSIZE_MAIN)
> +#define PART_KERNEL_START (PART_BLOB_START + PART_BLOB_LEN)
> +#define PART_KERNEL_LEN (NUM_KERNEL_BLOCKS * FLASH_BLOCKSIZE_MAIN)
>
> /* initial ramdisk */
> #define NUM_INITRD_BLOCKS 24
> -#define INITRD_START (KERNEL_START + KERNEL_LEN)
> -#define INITRD_LEN (NUM_INITRD_BLOCKS * FLASH_BLOCKSIZE_MAIN)
> +#define PART_INITRD_START (PART_KERNEL_START + PART_KERNEL_LEN)
> +#define PART_INITRD_LEN (NUM_INITRD_BLOCKS * FLASH_BLOCKSIZE_MAIN)
>
> /*
> * See section 4.0 in "3 Volt Fast Boot Block Flash Memory" Intel Datasheet
> @@ -587,20 +587,20 @@ static struct mtd_partition lart_partitions[] = {
> /* blob */
> {
> .name = "blob",
> - .offset = BLOB_START,
> - .size = BLOB_LEN,
> + .offset = PART_BLOB_START,
> + .size = PART_BLOB_LEN,
> },
> /* kernel */
> {
> .name = "kernel",
> - .offset = KERNEL_START, /* MTDPART_OFS_APPEND */
> - .size = KERNEL_LEN,
> + .offset = PART_KERNEL_START, /* MTDPART_OFS_APPEND */
> + .size = PART_KERNEL_LEN,
> },
> /* initial ramdisk / file system */
> {
> .name = "file system",
> - .offset = INITRD_START, /* MTDPART_OFS_APPEND */
> - .size = INITRD_LEN, /* MTDPART_SIZ_FULL */
> + .offset = PART_INITRD_START, /* MTDPART_OFS_APPEND */
> + .size = PART_INITRD_LEN, /* MTDPART_SIZ_FULL */
> }
> };
> #define NUM_PARTITIONS ARRAY_SIZE(lart_partitions)
^ permalink raw reply [flat|nested] 35+ messages in thread
* Re: [PATCH v3 3/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL
2016-12-09 23:36 ` [PATCH v3 3/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Florian Fainelli
@ 2016-12-22 2:40 ` Laura Abbott
0 siblings, 0 replies; 35+ messages in thread
From: Laura Abbott @ 2016-12-22 2:40 UTC (permalink / raw)
To: Florian Fainelli, linux-arm-kernel
Cc: linux, nicolas.pitre, panand, chris.brandt, arnd,
jonathan.austin, pawel.moll, vladimir.murzin, mark.rutland,
ard.biesheuvel, keescook, matt, kirill.shutemov, ben, js07.lee,
stefan, linux-kernel, linux-mtd, cyrille.pitchen, richard,
boris.brezillon, computersforpeace, dwmw2
On 12/09/2016 03:36 PM, Florian Fainelli wrote:
> x86 has an option: CONFIG_DEBUG_VIRTUAL to do additional checks on
> virt_to_phys calls. The goal is to catch users who are calling
> virt_to_phys on non-linear addresses immediately. This includes caller
> using __virt_to_phys() on image addresses instead of __pa_symbol(). This
> is a generally useful debug feature to spot bad code (particulary in
> drivers).
>
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> ---
> arch/arm/Kconfig | 1 +
> arch/arm/include/asm/memory.h | 16 ++++++++++++--
> arch/arm/mm/Makefile | 1 +
> arch/arm/mm/physaddr.c | 51 +++++++++++++++++++++++++++++++++++++++++++
> 4 files changed, 67 insertions(+), 2 deletions(-)
> create mode 100644 arch/arm/mm/physaddr.c
>
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index b5d529fdffab..5e66173c5787 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -2,6 +2,7 @@ config ARM
> bool
> default y
> select ARCH_CLOCKSOURCE_DATA
> + select ARCH_HAS_DEBUG_VIRTUAL
> select ARCH_HAS_DEVMEM_IS_ALLOWED
> select ARCH_HAS_ELF_RANDOMIZE
> select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
> diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
> index bee7511c5098..d90300193adf 100644
> --- a/arch/arm/include/asm/memory.h
> +++ b/arch/arm/include/asm/memory.h
> @@ -213,7 +213,7 @@ extern const void *__pv_table_begin, *__pv_table_end;
> : "r" (x), "I" (__PV_BITS_31_24) \
> : "cc")
>
> -static inline phys_addr_t __virt_to_phys(unsigned long x)
> +static inline phys_addr_t __virt_to_phys_nodebug(unsigned long x)
> {
> phys_addr_t t;
>
> @@ -245,7 +245,7 @@ static inline unsigned long __phys_to_virt(phys_addr_t x)
> #define PHYS_OFFSET PLAT_PHYS_OFFSET
> #define PHYS_PFN_OFFSET ((unsigned long)(PHYS_OFFSET >> PAGE_SHIFT))
>
> -static inline phys_addr_t __virt_to_phys(unsigned long x)
> +static inline phys_addr_t __virt_to_phys_nodebug(unsigned long x)
> {
> return (phys_addr_t)x - PAGE_OFFSET + PHYS_OFFSET;
> }
> @@ -261,6 +261,16 @@ static inline unsigned long __phys_to_virt(phys_addr_t x)
> ((((unsigned long)(kaddr) - PAGE_OFFSET) >> PAGE_SHIFT) + \
> PHYS_PFN_OFFSET)
>
> +#define __pa_symbol_nodebug(x) __virt_to_phys_nodebug((x))
> +
> +#ifdef CONFIG_DEBUG_VIRTUAL
> +extern phys_addr_t __virt_to_phys(unsigned long x);
> +extern phys_addr_t __phys_addr_symbol(unsigned long x);
> +#else
> +#define __virt_to_phys(x) __virt_to_phys_nodebug(x)
> +#define __phys_addr_symbol(x) __pa_symbol_nodebug(x)
> +#endif
> +
> /*
> * These are *only* valid on the kernel direct mapped RAM memory.
> * Note: Drivers should NOT use these. They are the wrong
> @@ -283,9 +293,11 @@ static inline void *phys_to_virt(phys_addr_t x)
> * Drivers should NOT use these either.
> */
> #define __pa(x) __virt_to_phys((unsigned long)(x))
> +#define __pa_symbol(x) __phys_addr_symbol(RELOC_HIDE((unsigned long)(x), 0))
> #define __va(x) ((void *)__phys_to_virt((phys_addr_t)(x)))
> #define pfn_to_kaddr(pfn) __va((phys_addr_t)(pfn) << PAGE_SHIFT)
>
> +
> extern long long arch_phys_to_idmap_offset;
>
> /*
> diff --git a/arch/arm/mm/Makefile b/arch/arm/mm/Makefile
> index e8698241ece9..b3dea80715b4 100644
> --- a/arch/arm/mm/Makefile
> +++ b/arch/arm/mm/Makefile
> @@ -14,6 +14,7 @@ endif
>
> obj-$(CONFIG_ARM_PTDUMP) += dump.o
> obj-$(CONFIG_MODULES) += proc-syms.o
> +obj-$(CONFIG_DEBUG_VIRTUAL) += physaddr.o
>
> obj-$(CONFIG_ALIGNMENT_TRAP) += alignment.o
> obj-$(CONFIG_HIGHMEM) += highmem.o
> diff --git a/arch/arm/mm/physaddr.c b/arch/arm/mm/physaddr.c
> new file mode 100644
> index 000000000000..0288760306ce
> --- /dev/null
> +++ b/arch/arm/mm/physaddr.c
> @@ -0,0 +1,51 @@
> +#include <linux/bug.h>
> +#include <linux/export.h>
> +#include <linux/types.h>
> +#include <linux/mmdebug.h>
> +#include <linux/mm.h>
> +
> +#include <asm/sections.h>
> +#include <asm/memory.h>
> +#include <asm/fixmap.h>
> +#include <asm/dma.h>
> +
> +#include "mm.h"
> +
> +static inline bool __virt_addr_valid(unsigned long x)
> +{
> + /* high_memory does not get immediately defined, and there
> + * are early callers of __pa() against PAGE_OFFSET, just catch
> + * these here, then do normal checks, with the exception of
> + * MAX_DMA_ADDRESS.
> + */
> + if ((x >= PAGE_OFFSET && !high_memory) ||
> + (x >= PAGE_OFFSET &&
> + high_memory && x < (unsigned long)high_memory) ||
> + x == MAX_DMA_ADDRESS)
> + return true;
This is difficult to read, it's easier to read if it's split out:
if (!high_memory && x >= PAGE_OFFSET)
return true;
if (high_memory && x >= PAGE_OFFSET && x < (unsigned long) high_memory)
return true;
if (x == MAX_DMA_ADDRESS)
return true;
I'm really not a fan of the check for MAX_DMA_ADDRESS. arm64 gets away
with this because it uses the asm-generic version of dma.h which sets
MAX_DMA_ADDRESS to PAGE_OFFSET. __pa(MAX_DMA_ADDRESS) is used a
bunch of places in the kernel as a lower limit for memblock
allocation. The implication seems to be that MAX_DMA_ADDRESS
corresponds to something that corresponds to a real physical address.
The existing code happens to work because it will simply retry the
allocation if without the lower bound.
I don't see a good way to fix this though. It doesn't look like
MAX_DMA_ADDRESS can be changed if it's actually going to be used
for DMA and there isn't a unified way to just get a physical address.
Thanks,
Laura
> +
> + return false;
> +}
> +
> +phys_addr_t __virt_to_phys(unsigned long x)
> +{
> + WARN(!__virt_addr_valid(x),
> + "virt_to_phys used for non-linear address: %pK (%pS)\n",
> + (void *)x,
> + (void *)x);
> +
> + return __virt_to_phys_nodebug(x);
> +}
> +EXPORT_SYMBOL(__virt_to_phys);
> +
> +phys_addr_t __phys_addr_symbol(unsigned long x)
> +{
> + /* This is bounds checking against the kernel image only.
> + * __pa_symbol should only be used on kernel symbol addresses.
> + */
> + VIRTUAL_BUG_ON(x < (unsigned long)KERNEL_START ||
> + x > (unsigned long)KERNEL_END);
> +
> + return __pa_symbol_nodebug(x);
> +}
> +EXPORT_SYMBOL(__phys_addr_symbol);
>
^ permalink raw reply [flat|nested] 35+ messages in thread
* [PATCH v4 0/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL
2016-12-09 23:36 ` [PATCH v3 0/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Florian Fainelli
` (4 preceding siblings ...)
2016-12-13 20:29 ` [PATCH v3 0/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Florian Fainelli
@ 2016-12-26 20:38 ` Florian Fainelli
2016-12-26 20:38 ` [PATCH v4 1/4] mtd: lart: Rename partition defines to be prefixed with PART_ Florian Fainelli
` (4 more replies)
5 siblings, 5 replies; 35+ messages in thread
From: Florian Fainelli @ 2016-12-26 20:38 UTC (permalink / raw)
To: linux-arm-kernel
Cc: Florian Fainelli, linux, nicolas.pitre, panand, chris.brandt,
arnd, jonathan.austin, pawel.moll, vladimir.murzin, mark.rutland,
ard.biesheuvel, keescook, matt, labbott, kirill.shutemov, ben,
js07.lee, stefan, linux-kernel, linux-mtd, cyrille.pitchen,
richard, boris.brezillon, computersforpeace, dwmw2
Hi all,
This patch series builds on top of Laura's [PATCHv5 00/10] CONFIG_DEBUG_VIRTUAL
for arm64 to add support for CONFIG_DEBUG_VIRTUAL for ARM.
This was tested on a Brahma B15 platform (ARMv7 + HIGHMEM + LPAE).
Note that the treewide changes would involve a huge CC list, which
is why it has been purposely trimmed to just focusing on the DEBUG_VIRTUAL
aspect.
Changes in v4:
- added Boris' ack for the first patch
- reworked the virtual address check based on Laura's suggestion to
make the code more readable
Changes in v3:
- fix build failures reported by Kbuild test robot
Changes in v2:
- Modified MTD LART driver not to create symbol conflicts with
KERNEL_START
- Fixed patch that defines and uses KERNEL_START/END
- Fixed __pa_symbol()'s definition
- Inline __pa_symbol() check wihtin the VIRTUAL_BUG_ON statement
- Simplified check for virtual addresses
- Added a tree-wide patch changing SMP/PM implementations to use
__pa_symbol(), build tested against multi_v{5,7}_defconfig
Florian Fainelli (4):
mtd: lart: Rename partition defines to be prefixed with PART_
ARM: Define KERNEL_START and KERNEL_END
ARM: Add support for CONFIG_DEBUG_VIRTUAL
ARM: treewide: Replace uses of virt_to_phys with __pa_symbol
arch/arm/Kconfig | 1 +
arch/arm/common/mcpm_entry.c | 12 +++----
arch/arm/include/asm/memory.h | 23 +++++++++++--
arch/arm/mach-alpine/platsmp.c | 2 +-
arch/arm/mach-axxia/platsmp.c | 2 +-
arch/arm/mach-bcm/bcm63xx_smp.c | 2 +-
arch/arm/mach-bcm/platsmp-brcmstb.c | 2 +-
arch/arm/mach-bcm/platsmp.c | 4 +--
arch/arm/mach-berlin/platsmp.c | 2 +-
arch/arm/mach-exynos/firmware.c | 4 +--
arch/arm/mach-exynos/mcpm-exynos.c | 2 +-
arch/arm/mach-exynos/platsmp.c | 4 +--
arch/arm/mach-exynos/pm.c | 6 ++--
arch/arm/mach-exynos/suspend.c | 6 ++--
arch/arm/mach-hisi/platmcpm.c | 2 +-
arch/arm/mach-hisi/platsmp.c | 6 ++--
arch/arm/mach-imx/platsmp.c | 2 +-
arch/arm/mach-imx/pm-imx6.c | 2 +-
arch/arm/mach-imx/src.c | 2 +-
arch/arm/mach-mediatek/platsmp.c | 2 +-
arch/arm/mach-mvebu/pm.c | 2 +-
arch/arm/mach-mvebu/pmsu.c | 2 +-
arch/arm/mach-mvebu/system-controller.c | 2 +-
arch/arm/mach-omap2/control.c | 8 ++---
arch/arm/mach-omap2/omap-mpuss-lowpower.c | 8 ++---
arch/arm/mach-omap2/omap-smp.c | 4 +--
arch/arm/mach-prima2/platsmp.c | 2 +-
arch/arm/mach-prima2/pm.c | 2 +-
arch/arm/mach-pxa/palmz72.c | 2 +-
arch/arm/mach-pxa/pxa25x.c | 2 +-
arch/arm/mach-pxa/pxa27x.c | 2 +-
arch/arm/mach-pxa/pxa3xx.c | 2 +-
arch/arm/mach-realview/platsmp-dt.c | 2 +-
arch/arm/mach-rockchip/platsmp.c | 4 +--
arch/arm/mach-rockchip/pm.c | 2 +-
arch/arm/mach-s3c24xx/mach-jive.c | 2 +-
arch/arm/mach-s3c24xx/pm-s3c2410.c | 2 +-
arch/arm/mach-s3c24xx/pm-s3c2416.c | 2 +-
arch/arm/mach-s3c64xx/pm.c | 2 +-
arch/arm/mach-s5pv210/pm.c | 2 +-
arch/arm/mach-sa1100/pm.c | 2 +-
arch/arm/mach-shmobile/platsmp-apmu.c | 6 ++--
arch/arm/mach-shmobile/platsmp-scu.c | 4 +--
arch/arm/mach-socfpga/platsmp.c | 4 +--
arch/arm/mach-spear/platsmp.c | 2 +-
arch/arm/mach-sti/platsmp.c | 2 +-
arch/arm/mach-sunxi/platsmp.c | 4 +--
arch/arm/mach-tango/platsmp.c | 2 +-
arch/arm/mach-tango/pm.c | 2 +-
arch/arm/mach-tegra/reset.c | 4 +--
arch/arm/mach-ux500/platsmp.c | 2 +-
arch/arm/mach-vexpress/dcscb.c | 2 +-
arch/arm/mach-vexpress/platsmp.c | 2 +-
arch/arm/mach-vexpress/tc2_pm.c | 4 +--
arch/arm/mach-zx/platsmp.c | 4 +--
arch/arm/mach-zynq/platsmp.c | 2 +-
arch/arm/mm/Makefile | 1 +
arch/arm/mm/init.c | 7 ++--
arch/arm/mm/mmu.c | 6 +---
arch/arm/mm/physaddr.c | 55 +++++++++++++++++++++++++++++++
drivers/mtd/devices/lart.c | 24 +++++++-------
61 files changed, 177 insertions(+), 108 deletions(-)
create mode 100644 arch/arm/mm/physaddr.c
--
2.9.3
^ permalink raw reply [flat|nested] 35+ messages in thread
* [PATCH v4 1/4] mtd: lart: Rename partition defines to be prefixed with PART_
2016-12-26 20:38 ` [PATCH v4 " Florian Fainelli
@ 2016-12-26 20:38 ` Florian Fainelli
2016-12-26 20:38 ` [PATCH v4 2/4] ARM: Define KERNEL_START and KERNEL_END Florian Fainelli
` (3 subsequent siblings)
4 siblings, 0 replies; 35+ messages in thread
From: Florian Fainelli @ 2016-12-26 20:38 UTC (permalink / raw)
To: linux-arm-kernel
Cc: Florian Fainelli, linux, nicolas.pitre, panand, chris.brandt,
arnd, jonathan.austin, pawel.moll, vladimir.murzin, mark.rutland,
ard.biesheuvel, keescook, matt, labbott, kirill.shutemov, ben,
js07.lee, stefan, linux-kernel, linux-mtd, cyrille.pitchen,
richard, boris.brezillon, computersforpeace, dwmw2
In preparation for defining KERNEL_START on ARM, rename KERNEL_START to
PART_KERNEL_START, and to be consistent, do this for all
partition-related constants.
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
drivers/mtd/devices/lart.c | 24 ++++++++++++------------
1 file changed, 12 insertions(+), 12 deletions(-)
diff --git a/drivers/mtd/devices/lart.c b/drivers/mtd/devices/lart.c
index 82bd00af5cc3..268aae45b514 100644
--- a/drivers/mtd/devices/lart.c
+++ b/drivers/mtd/devices/lart.c
@@ -75,18 +75,18 @@ static char module_name[] = "lart";
/* blob */
#define NUM_BLOB_BLOCKS FLASH_NUMBLOCKS_16m_PARAM
-#define BLOB_START 0x00000000
-#define BLOB_LEN (NUM_BLOB_BLOCKS * FLASH_BLOCKSIZE_PARAM)
+#define PART_BLOB_START 0x00000000
+#define PART_BLOB_LEN (NUM_BLOB_BLOCKS * FLASH_BLOCKSIZE_PARAM)
/* kernel */
#define NUM_KERNEL_BLOCKS 7
-#define KERNEL_START (BLOB_START + BLOB_LEN)
-#define KERNEL_LEN (NUM_KERNEL_BLOCKS * FLASH_BLOCKSIZE_MAIN)
+#define PART_KERNEL_START (PART_BLOB_START + PART_BLOB_LEN)
+#define PART_KERNEL_LEN (NUM_KERNEL_BLOCKS * FLASH_BLOCKSIZE_MAIN)
/* initial ramdisk */
#define NUM_INITRD_BLOCKS 24
-#define INITRD_START (KERNEL_START + KERNEL_LEN)
-#define INITRD_LEN (NUM_INITRD_BLOCKS * FLASH_BLOCKSIZE_MAIN)
+#define PART_INITRD_START (PART_KERNEL_START + PART_KERNEL_LEN)
+#define PART_INITRD_LEN (NUM_INITRD_BLOCKS * FLASH_BLOCKSIZE_MAIN)
/*
* See section 4.0 in "3 Volt Fast Boot Block Flash Memory" Intel Datasheet
@@ -587,20 +587,20 @@ static struct mtd_partition lart_partitions[] = {
/* blob */
{
.name = "blob",
- .offset = BLOB_START,
- .size = BLOB_LEN,
+ .offset = PART_BLOB_START,
+ .size = PART_BLOB_LEN,
},
/* kernel */
{
.name = "kernel",
- .offset = KERNEL_START, /* MTDPART_OFS_APPEND */
- .size = KERNEL_LEN,
+ .offset = PART_KERNEL_START, /* MTDPART_OFS_APPEND */
+ .size = PART_KERNEL_LEN,
},
/* initial ramdisk / file system */
{
.name = "file system",
- .offset = INITRD_START, /* MTDPART_OFS_APPEND */
- .size = INITRD_LEN, /* MTDPART_SIZ_FULL */
+ .offset = PART_INITRD_START, /* MTDPART_OFS_APPEND */
+ .size = PART_INITRD_LEN, /* MTDPART_SIZ_FULL */
}
};
#define NUM_PARTITIONS ARRAY_SIZE(lart_partitions)
--
2.9.3
^ permalink raw reply related [flat|nested] 35+ messages in thread
* [PATCH v4 2/4] ARM: Define KERNEL_START and KERNEL_END
2016-12-26 20:38 ` [PATCH v4 " Florian Fainelli
2016-12-26 20:38 ` [PATCH v4 1/4] mtd: lart: Rename partition defines to be prefixed with PART_ Florian Fainelli
@ 2016-12-26 20:38 ` Florian Fainelli
2016-12-26 20:38 ` [PATCH v4 3/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Florian Fainelli
` (2 subsequent siblings)
4 siblings, 0 replies; 35+ messages in thread
From: Florian Fainelli @ 2016-12-26 20:38 UTC (permalink / raw)
To: linux-arm-kernel
Cc: Florian Fainelli, linux, nicolas.pitre, panand, chris.brandt,
arnd, jonathan.austin, pawel.moll, vladimir.murzin, mark.rutland,
ard.biesheuvel, keescook, matt, labbott, kirill.shutemov, ben,
js07.lee, stefan, linux-kernel, linux-mtd, cyrille.pitchen,
richard, boris.brezillon, computersforpeace, dwmw2
In preparation for adding CONFIG_DEBUG_VIRTUAL support, define a set of
common constants: KERNEL_START and KERNEL_END which abstract
CONFIG_XIP_KERNEL vs. !CONFIG_XIP_KERNEL. Update the code where
relevant.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
arch/arm/include/asm/memory.h | 7 +++++++
arch/arm/mm/init.c | 7 ++-----
arch/arm/mm/mmu.c | 6 +-----
3 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index 76cbd9c674df..bee7511c5098 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -111,6 +111,13 @@
#endif /* !CONFIG_MMU */
+#ifdef CONFIG_XIP_KERNEL
+#define KERNEL_START _sdata
+#else
+#define KERNEL_START _stext
+#endif
+#define KERNEL_END _end
+
/*
* We fix the TCM memories max 32 KiB ITCM resp DTCM at these
* locations
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 370581aeb871..c87d0d5b65f2 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -230,11 +230,8 @@ phys_addr_t __init arm_memblock_steal(phys_addr_t size, phys_addr_t align)
void __init arm_memblock_init(const struct machine_desc *mdesc)
{
/* Register the kernel text, kernel data and initrd with memblock. */
-#ifdef CONFIG_XIP_KERNEL
- memblock_reserve(__pa(_sdata), _end - _sdata);
-#else
- memblock_reserve(__pa(_stext), _end - _stext);
-#endif
+ memblock_reserve(__pa(KERNEL_START), _end - KERNEL_START);
+
#ifdef CONFIG_BLK_DEV_INITRD
/* FDT scan will populate initrd_start */
if (initrd_start && !phys_initrd_size) {
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 4001dd15818d..f0fd1a2db036 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -1437,11 +1437,7 @@ static void __init kmap_init(void)
static void __init map_lowmem(void)
{
struct memblock_region *reg;
-#ifdef CONFIG_XIP_KERNEL
- phys_addr_t kernel_x_start = round_down(__pa(_sdata), SECTION_SIZE);
-#else
- phys_addr_t kernel_x_start = round_down(__pa(_stext), SECTION_SIZE);
-#endif
+ phys_addr_t kernel_x_start = round_down(__pa(KERNEL_START), SECTION_SIZE);
phys_addr_t kernel_x_end = round_up(__pa(__init_end), SECTION_SIZE);
/* Map all the lowmem memory banks. */
--
2.9.3
^ permalink raw reply related [flat|nested] 35+ messages in thread
* [PATCH v4 3/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL
2016-12-26 20:38 ` [PATCH v4 " Florian Fainelli
2016-12-26 20:38 ` [PATCH v4 1/4] mtd: lart: Rename partition defines to be prefixed with PART_ Florian Fainelli
2016-12-26 20:38 ` [PATCH v4 2/4] ARM: Define KERNEL_START and KERNEL_END Florian Fainelli
@ 2016-12-26 20:38 ` Florian Fainelli
2016-12-26 20:38 ` [PATCH v4 4/4] ARM: treewide: Replace uses of virt_to_phys with __pa_symbol Florian Fainelli
2017-01-02 14:10 ` [PATCH v4 0/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Russell King - ARM Linux
4 siblings, 0 replies; 35+ messages in thread
From: Florian Fainelli @ 2016-12-26 20:38 UTC (permalink / raw)
To: linux-arm-kernel
Cc: Florian Fainelli, linux, nicolas.pitre, panand, chris.brandt,
arnd, jonathan.austin, pawel.moll, vladimir.murzin, mark.rutland,
ard.biesheuvel, keescook, matt, labbott, kirill.shutemov, ben,
js07.lee, stefan, linux-kernel, linux-mtd, cyrille.pitchen,
richard, boris.brezillon, computersforpeace, dwmw2
x86 has an option: CONFIG_DEBUG_VIRTUAL to do additional checks on
virt_to_phys calls. The goal is to catch users who are calling
virt_to_phys on non-linear addresses immediately. This includes caller
using __virt_to_phys() on image addresses instead of __pa_symbol(). This
is a generally useful debug feature to spot bad code (particulary in
drivers).
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
arch/arm/Kconfig | 1 +
arch/arm/include/asm/memory.h | 16 +++++++++++--
arch/arm/mm/Makefile | 1 +
arch/arm/mm/physaddr.c | 55 +++++++++++++++++++++++++++++++++++++++++++
4 files changed, 71 insertions(+), 2 deletions(-)
create mode 100644 arch/arm/mm/physaddr.c
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index b5d529fdffab..5e66173c5787 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -2,6 +2,7 @@ config ARM
bool
default y
select ARCH_CLOCKSOURCE_DATA
+ select ARCH_HAS_DEBUG_VIRTUAL
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_HAS_ELF_RANDOMIZE
select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index bee7511c5098..d90300193adf 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -213,7 +213,7 @@ extern const void *__pv_table_begin, *__pv_table_end;
: "r" (x), "I" (__PV_BITS_31_24) \
: "cc")
-static inline phys_addr_t __virt_to_phys(unsigned long x)
+static inline phys_addr_t __virt_to_phys_nodebug(unsigned long x)
{
phys_addr_t t;
@@ -245,7 +245,7 @@ static inline unsigned long __phys_to_virt(phys_addr_t x)
#define PHYS_OFFSET PLAT_PHYS_OFFSET
#define PHYS_PFN_OFFSET ((unsigned long)(PHYS_OFFSET >> PAGE_SHIFT))
-static inline phys_addr_t __virt_to_phys(unsigned long x)
+static inline phys_addr_t __virt_to_phys_nodebug(unsigned long x)
{
return (phys_addr_t)x - PAGE_OFFSET + PHYS_OFFSET;
}
@@ -261,6 +261,16 @@ static inline unsigned long __phys_to_virt(phys_addr_t x)
((((unsigned long)(kaddr) - PAGE_OFFSET) >> PAGE_SHIFT) + \
PHYS_PFN_OFFSET)
+#define __pa_symbol_nodebug(x) __virt_to_phys_nodebug((x))
+
+#ifdef CONFIG_DEBUG_VIRTUAL
+extern phys_addr_t __virt_to_phys(unsigned long x);
+extern phys_addr_t __phys_addr_symbol(unsigned long x);
+#else
+#define __virt_to_phys(x) __virt_to_phys_nodebug(x)
+#define __phys_addr_symbol(x) __pa_symbol_nodebug(x)
+#endif
+
/*
* These are *only* valid on the kernel direct mapped RAM memory.
* Note: Drivers should NOT use these. They are the wrong
@@ -283,9 +293,11 @@ static inline void *phys_to_virt(phys_addr_t x)
* Drivers should NOT use these either.
*/
#define __pa(x) __virt_to_phys((unsigned long)(x))
+#define __pa_symbol(x) __phys_addr_symbol(RELOC_HIDE((unsigned long)(x), 0))
#define __va(x) ((void *)__phys_to_virt((phys_addr_t)(x)))
#define pfn_to_kaddr(pfn) __va((phys_addr_t)(pfn) << PAGE_SHIFT)
+
extern long long arch_phys_to_idmap_offset;
/*
diff --git a/arch/arm/mm/Makefile b/arch/arm/mm/Makefile
index e8698241ece9..b3dea80715b4 100644
--- a/arch/arm/mm/Makefile
+++ b/arch/arm/mm/Makefile
@@ -14,6 +14,7 @@ endif
obj-$(CONFIG_ARM_PTDUMP) += dump.o
obj-$(CONFIG_MODULES) += proc-syms.o
+obj-$(CONFIG_DEBUG_VIRTUAL) += physaddr.o
obj-$(CONFIG_ALIGNMENT_TRAP) += alignment.o
obj-$(CONFIG_HIGHMEM) += highmem.o
diff --git a/arch/arm/mm/physaddr.c b/arch/arm/mm/physaddr.c
new file mode 100644
index 000000000000..f10bdcbcb155
--- /dev/null
+++ b/arch/arm/mm/physaddr.c
@@ -0,0 +1,55 @@
+#include <linux/bug.h>
+#include <linux/export.h>
+#include <linux/types.h>
+#include <linux/mmdebug.h>
+#include <linux/mm.h>
+
+#include <asm/sections.h>
+#include <asm/memory.h>
+#include <asm/fixmap.h>
+#include <asm/dma.h>
+
+#include "mm.h"
+
+static inline bool __virt_addr_valid(unsigned long x)
+{
+ /* high_memory does not get immediately defined, and there
+ * are early callers of __pa() against PAGE_OFFSET
+ */
+ if (!high_memory && x >= PAGE_OFFSET)
+ return true;
+
+ if (high_memory && x >= PAGE_OFFSET && x < (unsigned long)high_memory)
+ return true;
+
+ /* ARM uses the default per-CPU allocation routing which forces us to
+ * have an explicit check here to avoid a false positive
+ */
+ if (x == MAX_DMA_ADDRESS)
+ return true;
+
+ return false;
+}
+
+phys_addr_t __virt_to_phys(unsigned long x)
+{
+ WARN(!__virt_addr_valid(x),
+ "virt_to_phys used for non-linear address: %pK (%pS)\n",
+ (void *)x,
+ (void *)x);
+
+ return __virt_to_phys_nodebug(x);
+}
+EXPORT_SYMBOL(__virt_to_phys);
+
+phys_addr_t __phys_addr_symbol(unsigned long x)
+{
+ /* This is bounds checking against the kernel image only.
+ * __pa_symbol should only be used on kernel symbol addresses.
+ */
+ VIRTUAL_BUG_ON(x < (unsigned long)KERNEL_START ||
+ x > (unsigned long)KERNEL_END);
+
+ return __pa_symbol_nodebug(x);
+}
+EXPORT_SYMBOL(__phys_addr_symbol);
--
2.9.3
^ permalink raw reply related [flat|nested] 35+ messages in thread
* [PATCH v4 4/4] ARM: treewide: Replace uses of virt_to_phys with __pa_symbol
2016-12-26 20:38 ` [PATCH v4 " Florian Fainelli
` (2 preceding siblings ...)
2016-12-26 20:38 ` [PATCH v4 3/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Florian Fainelli
@ 2016-12-26 20:38 ` Florian Fainelli
2017-01-02 14:10 ` [PATCH v4 0/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Russell King - ARM Linux
4 siblings, 0 replies; 35+ messages in thread
From: Florian Fainelli @ 2016-12-26 20:38 UTC (permalink / raw)
To: linux-arm-kernel
Cc: Florian Fainelli, linux, nicolas.pitre, panand, chris.brandt,
arnd, jonathan.austin, pawel.moll, vladimir.murzin, mark.rutland,
ard.biesheuvel, keescook, matt, labbott, kirill.shutemov, ben,
js07.lee, stefan, linux-kernel, linux-mtd, cyrille.pitchen,
richard, boris.brezillon, computersforpeace, dwmw2
All low-level PM/SMP code using virt_to_phys() should actually use
__pa_symbol() against kernel symbols. Update code where relevant to move
away from virt_to_phys().
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
arch/arm/common/mcpm_entry.c | 12 ++++++------
arch/arm/mach-alpine/platsmp.c | 2 +-
arch/arm/mach-axxia/platsmp.c | 2 +-
arch/arm/mach-bcm/bcm63xx_smp.c | 2 +-
arch/arm/mach-bcm/platsmp-brcmstb.c | 2 +-
arch/arm/mach-bcm/platsmp.c | 4 ++--
arch/arm/mach-berlin/platsmp.c | 2 +-
arch/arm/mach-exynos/firmware.c | 4 ++--
arch/arm/mach-exynos/mcpm-exynos.c | 2 +-
arch/arm/mach-exynos/platsmp.c | 4 ++--
arch/arm/mach-exynos/pm.c | 6 +++---
arch/arm/mach-exynos/suspend.c | 6 +++---
arch/arm/mach-hisi/platmcpm.c | 2 +-
arch/arm/mach-hisi/platsmp.c | 6 +++---
arch/arm/mach-imx/platsmp.c | 2 +-
arch/arm/mach-imx/pm-imx6.c | 2 +-
arch/arm/mach-imx/src.c | 2 +-
arch/arm/mach-mediatek/platsmp.c | 2 +-
arch/arm/mach-mvebu/pm.c | 2 +-
arch/arm/mach-mvebu/pmsu.c | 2 +-
arch/arm/mach-mvebu/system-controller.c | 2 +-
arch/arm/mach-omap2/control.c | 8 ++++----
arch/arm/mach-omap2/omap-mpuss-lowpower.c | 8 ++++----
arch/arm/mach-omap2/omap-smp.c | 4 ++--
arch/arm/mach-prima2/platsmp.c | 2 +-
arch/arm/mach-prima2/pm.c | 2 +-
arch/arm/mach-pxa/palmz72.c | 2 +-
arch/arm/mach-pxa/pxa25x.c | 2 +-
arch/arm/mach-pxa/pxa27x.c | 2 +-
arch/arm/mach-pxa/pxa3xx.c | 2 +-
arch/arm/mach-realview/platsmp-dt.c | 2 +-
arch/arm/mach-rockchip/platsmp.c | 4 ++--
arch/arm/mach-rockchip/pm.c | 2 +-
arch/arm/mach-s3c24xx/mach-jive.c | 2 +-
arch/arm/mach-s3c24xx/pm-s3c2410.c | 2 +-
arch/arm/mach-s3c24xx/pm-s3c2416.c | 2 +-
arch/arm/mach-s3c64xx/pm.c | 2 +-
arch/arm/mach-s5pv210/pm.c | 2 +-
arch/arm/mach-sa1100/pm.c | 2 +-
arch/arm/mach-shmobile/platsmp-apmu.c | 6 +++---
arch/arm/mach-shmobile/platsmp-scu.c | 4 ++--
arch/arm/mach-socfpga/platsmp.c | 4 ++--
arch/arm/mach-spear/platsmp.c | 2 +-
arch/arm/mach-sti/platsmp.c | 2 +-
arch/arm/mach-sunxi/platsmp.c | 4 ++--
arch/arm/mach-tango/platsmp.c | 2 +-
arch/arm/mach-tango/pm.c | 2 +-
arch/arm/mach-tegra/reset.c | 4 ++--
arch/arm/mach-ux500/platsmp.c | 2 +-
arch/arm/mach-vexpress/dcscb.c | 2 +-
arch/arm/mach-vexpress/platsmp.c | 2 +-
arch/arm/mach-vexpress/tc2_pm.c | 4 ++--
arch/arm/mach-zx/platsmp.c | 4 ++--
arch/arm/mach-zynq/platsmp.c | 2 +-
54 files changed, 84 insertions(+), 84 deletions(-)
diff --git a/arch/arm/common/mcpm_entry.c b/arch/arm/common/mcpm_entry.c
index a923524d1040..cf062472e07b 100644
--- a/arch/arm/common/mcpm_entry.c
+++ b/arch/arm/common/mcpm_entry.c
@@ -144,7 +144,7 @@ extern unsigned long mcpm_entry_vectors[MAX_NR_CLUSTERS][MAX_CPUS_PER_CLUSTER];
void mcpm_set_entry_vector(unsigned cpu, unsigned cluster, void *ptr)
{
- unsigned long val = ptr ? virt_to_phys(ptr) : 0;
+ unsigned long val = ptr ? __pa_symbol(ptr) : 0;
mcpm_entry_vectors[cluster][cpu] = val;
sync_cache_w(&mcpm_entry_vectors[cluster][cpu]);
}
@@ -299,8 +299,8 @@ void mcpm_cpu_power_down(void)
* the kernel as if the power_up method just had deasserted reset
* on the CPU.
*/
- phys_reset = (phys_reset_t)(unsigned long)virt_to_phys(cpu_reset);
- phys_reset(virt_to_phys(mcpm_entry_point));
+ phys_reset = (phys_reset_t)(unsigned long)__pa_symbol(cpu_reset);
+ phys_reset(__pa_symbol(mcpm_entry_point));
/* should never get here */
BUG();
@@ -388,8 +388,8 @@ static int __init nocache_trampoline(unsigned long _arg)
__mcpm_outbound_leave_critical(cluster, CLUSTER_DOWN);
__mcpm_cpu_down(cpu, cluster);
- phys_reset = (phys_reset_t)(unsigned long)virt_to_phys(cpu_reset);
- phys_reset(virt_to_phys(mcpm_entry_point));
+ phys_reset = (phys_reset_t)(unsigned long)__pa_symbol(cpu_reset);
+ phys_reset(__pa_symbol(mcpm_entry_point));
BUG();
}
@@ -449,7 +449,7 @@ int __init mcpm_sync_init(
sync_cache_w(&mcpm_sync);
if (power_up_setup) {
- mcpm_power_up_setup_phys = virt_to_phys(power_up_setup);
+ mcpm_power_up_setup_phys = __pa_symbol(power_up_setup);
sync_cache_w(&mcpm_power_up_setup_phys);
}
diff --git a/arch/arm/mach-alpine/platsmp.c b/arch/arm/mach-alpine/platsmp.c
index dd77ea25e7ca..6dc6d491f88a 100644
--- a/arch/arm/mach-alpine/platsmp.c
+++ b/arch/arm/mach-alpine/platsmp.c
@@ -27,7 +27,7 @@ static int alpine_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
phys_addr_t addr;
- addr = virt_to_phys(secondary_startup);
+ addr = __pa_symbol(secondary_startup);
if (addr > (phys_addr_t)(uint32_t)(-1)) {
pr_err("FAIL: resume address over 32bit (%pa)", &addr);
diff --git a/arch/arm/mach-axxia/platsmp.c b/arch/arm/mach-axxia/platsmp.c
index ffbd71d45008..502e3df69f69 100644
--- a/arch/arm/mach-axxia/platsmp.c
+++ b/arch/arm/mach-axxia/platsmp.c
@@ -25,7 +25,7 @@
static void write_release_addr(u32 release_phys)
{
u32 *virt = (u32 *) phys_to_virt(release_phys);
- writel_relaxed(virt_to_phys(secondary_startup), virt);
+ writel_relaxed(__pa_symbol(secondary_startup), virt);
/* Make sure this store is visible to other CPUs */
smp_wmb();
__cpuc_flush_dcache_area(virt, sizeof(u32));
diff --git a/arch/arm/mach-bcm/bcm63xx_smp.c b/arch/arm/mach-bcm/bcm63xx_smp.c
index 9b6727ed68cd..f5fb10b4376f 100644
--- a/arch/arm/mach-bcm/bcm63xx_smp.c
+++ b/arch/arm/mach-bcm/bcm63xx_smp.c
@@ -135,7 +135,7 @@ static int bcm63138_smp_boot_secondary(unsigned int cpu,
}
/* Write the secondary init routine to the BootLUT reset vector */
- val = virt_to_phys(secondary_startup);
+ val = __pa_symbol(secondary_startup);
writel_relaxed(val, bootlut_base + BOOTLUT_RESET_VECT);
/* Power up the core, will jump straight to its reset vector when we
diff --git a/arch/arm/mach-bcm/platsmp-brcmstb.c b/arch/arm/mach-bcm/platsmp-brcmstb.c
index 40dc8448445e..12379960e982 100644
--- a/arch/arm/mach-bcm/platsmp-brcmstb.c
+++ b/arch/arm/mach-bcm/platsmp-brcmstb.c
@@ -151,7 +151,7 @@ static void brcmstb_cpu_boot(u32 cpu)
* Set the reset vector to point to the secondary_startup
* routine
*/
- cpu_set_boot_addr(cpu, virt_to_phys(secondary_startup));
+ cpu_set_boot_addr(cpu, __pa_symbol(secondary_startup));
/* Unhalt the cpu */
cpu_rst_cfg_set(cpu, 0);
diff --git a/arch/arm/mach-bcm/platsmp.c b/arch/arm/mach-bcm/platsmp.c
index 3ac3a9bc663c..582886d0d02f 100644
--- a/arch/arm/mach-bcm/platsmp.c
+++ b/arch/arm/mach-bcm/platsmp.c
@@ -116,7 +116,7 @@ static int nsp_write_lut(unsigned int cpu)
return -ENOMEM;
}
- secondary_startup_phy = virt_to_phys(secondary_startup);
+ secondary_startup_phy = __pa_symbol(secondary_startup);
BUG_ON(secondary_startup_phy > (phys_addr_t)U32_MAX);
writel_relaxed(secondary_startup_phy, sku_rom_lut);
@@ -189,7 +189,7 @@ static int kona_boot_secondary(unsigned int cpu, struct task_struct *idle)
* Secondary cores will start in secondary_startup(),
* defined in "arch/arm/kernel/head.S"
*/
- boot_func = virt_to_phys(secondary_startup);
+ boot_func = __pa_symbol(secondary_startup);
BUG_ON(boot_func & BOOT_ADDR_CPUID_MASK);
BUG_ON(boot_func > (phys_addr_t)U32_MAX);
diff --git a/arch/arm/mach-berlin/platsmp.c b/arch/arm/mach-berlin/platsmp.c
index 93f90688db18..1167b0ed92c8 100644
--- a/arch/arm/mach-berlin/platsmp.c
+++ b/arch/arm/mach-berlin/platsmp.c
@@ -92,7 +92,7 @@ static void __init berlin_smp_prepare_cpus(unsigned int max_cpus)
* Write the secondary startup address into the SW reset address
* vector. This is used by boot_inst.
*/
- writel(virt_to_phys(secondary_startup), vectors_base + SW_RESET_ADDR);
+ writel(__pa_symbol(secondary_startup), vectors_base + SW_RESET_ADDR);
iounmap(vectors_base);
unmap_scu:
diff --git a/arch/arm/mach-exynos/firmware.c b/arch/arm/mach-exynos/firmware.c
index fd6da5419b51..e81a78b125d9 100644
--- a/arch/arm/mach-exynos/firmware.c
+++ b/arch/arm/mach-exynos/firmware.c
@@ -41,7 +41,7 @@ static int exynos_do_idle(unsigned long mode)
case FW_DO_IDLE_AFTR:
if (read_cpuid_part() == ARM_CPU_PART_CORTEX_A9)
exynos_save_cp15();
- writel_relaxed(virt_to_phys(exynos_cpu_resume_ns),
+ writel_relaxed(__pa_symbol(exynos_cpu_resume_ns),
sysram_ns_base_addr + 0x24);
writel_relaxed(EXYNOS_AFTR_MAGIC, sysram_ns_base_addr + 0x20);
if (soc_is_exynos3250()) {
@@ -135,7 +135,7 @@ static int exynos_suspend(void)
exynos_save_cp15();
writel(EXYNOS_SLEEP_MAGIC, sysram_ns_base_addr + EXYNOS_BOOT_FLAG);
- writel(virt_to_phys(exynos_cpu_resume_ns),
+ writel(__pa_symbol(exynos_cpu_resume_ns),
sysram_ns_base_addr + EXYNOS_BOOT_ADDR);
return cpu_suspend(0, exynos_cpu_suspend);
diff --git a/arch/arm/mach-exynos/mcpm-exynos.c b/arch/arm/mach-exynos/mcpm-exynos.c
index f086bf615b29..214a9cfa92e9 100644
--- a/arch/arm/mach-exynos/mcpm-exynos.c
+++ b/arch/arm/mach-exynos/mcpm-exynos.c
@@ -221,7 +221,7 @@ static void exynos_mcpm_setup_entry_point(void)
*/
__raw_writel(0xe59f0000, ns_sram_base_addr); /* ldr r0, [pc, #0] */
__raw_writel(0xe12fff10, ns_sram_base_addr + 4); /* bx r0 */
- __raw_writel(virt_to_phys(mcpm_entry_point), ns_sram_base_addr + 8);
+ __raw_writel(__pa_symbol(mcpm_entry_point), ns_sram_base_addr + 8);
}
static struct syscore_ops exynos_mcpm_syscore_ops = {
diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c
index 98ffe1e62ad5..9f4949f7ed88 100644
--- a/arch/arm/mach-exynos/platsmp.c
+++ b/arch/arm/mach-exynos/platsmp.c
@@ -353,7 +353,7 @@ static int exynos_boot_secondary(unsigned int cpu, struct task_struct *idle)
smp_rmb();
- boot_addr = virt_to_phys(exynos4_secondary_startup);
+ boot_addr = __pa_symbol(exynos4_secondary_startup);
ret = exynos_set_boot_addr(core_id, boot_addr);
if (ret)
@@ -443,7 +443,7 @@ static void __init exynos_smp_prepare_cpus(unsigned int max_cpus)
mpidr = cpu_logical_map(i);
core_id = MPIDR_AFFINITY_LEVEL(mpidr, 0);
- boot_addr = virt_to_phys(exynos4_secondary_startup);
+ boot_addr = __pa_symbol(exynos4_secondary_startup);
ret = exynos_set_boot_addr(core_id, boot_addr);
if (ret)
diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c
index 487295f4a56b..1a7e5b5d08d8 100644
--- a/arch/arm/mach-exynos/pm.c
+++ b/arch/arm/mach-exynos/pm.c
@@ -132,7 +132,7 @@ static void exynos_set_wakeupmask(long mask)
static void exynos_cpu_set_boot_vector(long flags)
{
- writel_relaxed(virt_to_phys(exynos_cpu_resume),
+ writel_relaxed(__pa_symbol(exynos_cpu_resume),
exynos_boot_vector_addr());
writel_relaxed(flags, exynos_boot_vector_flag());
}
@@ -238,7 +238,7 @@ static int exynos_cpu0_enter_aftr(void)
abort:
if (cpu_online(1)) {
- unsigned long boot_addr = virt_to_phys(exynos_cpu_resume);
+ unsigned long boot_addr = __pa_symbol(exynos_cpu_resume);
/*
* Set the boot vector to something non-zero
@@ -330,7 +330,7 @@ static int exynos_cpu1_powerdown(void)
static void exynos_pre_enter_aftr(void)
{
- unsigned long boot_addr = virt_to_phys(exynos_cpu_resume);
+ unsigned long boot_addr = __pa_symbol(exynos_cpu_resume);
(void)exynos_set_boot_addr(1, boot_addr);
}
diff --git a/arch/arm/mach-exynos/suspend.c b/arch/arm/mach-exynos/suspend.c
index 06332f626565..97765be2cc12 100644
--- a/arch/arm/mach-exynos/suspend.c
+++ b/arch/arm/mach-exynos/suspend.c
@@ -344,7 +344,7 @@ static void exynos_pm_prepare(void)
exynos_pm_enter_sleep_mode();
/* ensure at least INFORM0 has the resume address */
- pmu_raw_writel(virt_to_phys(exynos_cpu_resume), S5P_INFORM0);
+ pmu_raw_writel(__pa_symbol(exynos_cpu_resume), S5P_INFORM0);
}
static void exynos3250_pm_prepare(void)
@@ -361,7 +361,7 @@ static void exynos3250_pm_prepare(void)
exynos_pm_enter_sleep_mode();
/* ensure at least INFORM0 has the resume address */
- pmu_raw_writel(virt_to_phys(exynos_cpu_resume), S5P_INFORM0);
+ pmu_raw_writel(__pa_symbol(exynos_cpu_resume), S5P_INFORM0);
}
static void exynos5420_pm_prepare(void)
@@ -386,7 +386,7 @@ static void exynos5420_pm_prepare(void)
/* ensure at least INFORM0 has the resume address */
if (IS_ENABLED(CONFIG_EXYNOS5420_MCPM))
- pmu_raw_writel(virt_to_phys(mcpm_entry_point), S5P_INFORM0);
+ pmu_raw_writel(__pa_symbol(mcpm_entry_point), S5P_INFORM0);
tmp = pmu_raw_readl(EXYNOS5_ARM_L2_OPTION);
tmp &= ~EXYNOS5_USE_RETENTION;
diff --git a/arch/arm/mach-hisi/platmcpm.c b/arch/arm/mach-hisi/platmcpm.c
index 4b653a8cb75c..a6c117622d67 100644
--- a/arch/arm/mach-hisi/platmcpm.c
+++ b/arch/arm/mach-hisi/platmcpm.c
@@ -327,7 +327,7 @@ static int __init hip04_smp_init(void)
*/
writel_relaxed(hip04_boot_method[0], relocation);
writel_relaxed(0xa5a5a5a5, relocation + 4); /* magic number */
- writel_relaxed(virt_to_phys(secondary_startup), relocation + 8);
+ writel_relaxed(__pa_symbol(secondary_startup), relocation + 8);
writel_relaxed(0, relocation + 12);
iounmap(relocation);
diff --git a/arch/arm/mach-hisi/platsmp.c b/arch/arm/mach-hisi/platsmp.c
index e1d67648d5d0..91bb02dec20f 100644
--- a/arch/arm/mach-hisi/platsmp.c
+++ b/arch/arm/mach-hisi/platsmp.c
@@ -28,7 +28,7 @@ void hi3xxx_set_cpu_jump(int cpu, void *jump_addr)
cpu = cpu_logical_map(cpu);
if (!cpu || !ctrl_base)
return;
- writel_relaxed(virt_to_phys(jump_addr), ctrl_base + ((cpu - 1) << 2));
+ writel_relaxed(__pa_symbol(jump_addr), ctrl_base + ((cpu - 1) << 2));
}
int hi3xxx_get_cpu_jump(int cpu)
@@ -118,7 +118,7 @@ static int hix5hd2_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
phys_addr_t jumpaddr;
- jumpaddr = virt_to_phys(secondary_startup);
+ jumpaddr = __pa_symbol(secondary_startup);
hix5hd2_set_scu_boot_addr(HIX5HD2_BOOT_ADDRESS, jumpaddr);
hix5hd2_set_cpu(cpu, true);
arch_send_wakeup_ipi_mask(cpumask_of(cpu));
@@ -156,7 +156,7 @@ static int hip01_boot_secondary(unsigned int cpu, struct task_struct *idle)
struct device_node *node;
- jumpaddr = virt_to_phys(secondary_startup);
+ jumpaddr = __pa_symbol(secondary_startup);
hip01_set_boot_addr(HIP01_BOOT_ADDRESS, jumpaddr);
node = of_find_compatible_node(NULL, NULL, "hisilicon,hip01-sysctrl");
diff --git a/arch/arm/mach-imx/platsmp.c b/arch/arm/mach-imx/platsmp.c
index 711dbbd5badd..c2d1b329fba1 100644
--- a/arch/arm/mach-imx/platsmp.c
+++ b/arch/arm/mach-imx/platsmp.c
@@ -117,7 +117,7 @@ static void __init ls1021a_smp_prepare_cpus(unsigned int max_cpus)
dcfg_base = of_iomap(np, 0);
BUG_ON(!dcfg_base);
- paddr = virt_to_phys(secondary_startup);
+ paddr = __pa_symbol(secondary_startup);
writel_relaxed(cpu_to_be32(paddr), dcfg_base + DCFG_CCSR_SCRATCHRW1);
iounmap(dcfg_base);
diff --git a/arch/arm/mach-imx/pm-imx6.c b/arch/arm/mach-imx/pm-imx6.c
index 1515e498d348..e61b1d1027e1 100644
--- a/arch/arm/mach-imx/pm-imx6.c
+++ b/arch/arm/mach-imx/pm-imx6.c
@@ -499,7 +499,7 @@ static int __init imx6q_suspend_init(const struct imx6_pm_socdata *socdata)
memset(suspend_ocram_base, 0, sizeof(*pm_info));
pm_info = suspend_ocram_base;
pm_info->pbase = ocram_pbase;
- pm_info->resume_addr = virt_to_phys(v7_cpu_resume);
+ pm_info->resume_addr = __pa_symbol(v7_cpu_resume);
pm_info->pm_info_size = sizeof(*pm_info);
/*
diff --git a/arch/arm/mach-imx/src.c b/arch/arm/mach-imx/src.c
index 70b083fe934a..495d85d0fe7e 100644
--- a/arch/arm/mach-imx/src.c
+++ b/arch/arm/mach-imx/src.c
@@ -99,7 +99,7 @@ void imx_enable_cpu(int cpu, bool enable)
void imx_set_cpu_jump(int cpu, void *jump_addr)
{
cpu = cpu_logical_map(cpu);
- writel_relaxed(virt_to_phys(jump_addr),
+ writel_relaxed(__pa_symbol(jump_addr),
src_base + SRC_GPR1 + cpu * 8);
}
diff --git a/arch/arm/mach-mediatek/platsmp.c b/arch/arm/mach-mediatek/platsmp.c
index b821e34474b6..726eb69bb655 100644
--- a/arch/arm/mach-mediatek/platsmp.c
+++ b/arch/arm/mach-mediatek/platsmp.c
@@ -122,7 +122,7 @@ static void __init __mtk_smp_prepare_cpus(unsigned int max_cpus, int trustzone)
* write the address of slave startup address into the system-wide
* jump register
*/
- writel_relaxed(virt_to_phys(secondary_startup_arm),
+ writel_relaxed(__pa_symbol(secondary_startup_arm),
mtk_smp_base + mtk_smp_info->jump_reg);
}
diff --git a/arch/arm/mach-mvebu/pm.c b/arch/arm/mach-mvebu/pm.c
index 2990c5269b18..c487be61d6d8 100644
--- a/arch/arm/mach-mvebu/pm.c
+++ b/arch/arm/mach-mvebu/pm.c
@@ -110,7 +110,7 @@ static void mvebu_pm_store_armadaxp_bootinfo(u32 *store_addr)
{
phys_addr_t resume_pc;
- resume_pc = virt_to_phys(armada_370_xp_cpu_resume);
+ resume_pc = __pa_symbol(armada_370_xp_cpu_resume);
/*
* The bootloader expects the first two words to be a magic
diff --git a/arch/arm/mach-mvebu/pmsu.c b/arch/arm/mach-mvebu/pmsu.c
index f39bd51bce18..27a78c80e5b1 100644
--- a/arch/arm/mach-mvebu/pmsu.c
+++ b/arch/arm/mach-mvebu/pmsu.c
@@ -112,7 +112,7 @@ static const struct of_device_id of_pmsu_table[] = {
void mvebu_pmsu_set_cpu_boot_addr(int hw_cpu, void *boot_addr)
{
- writel(virt_to_phys(boot_addr), pmsu_mp_base +
+ writel(__pa_symbol(boot_addr), pmsu_mp_base +
PMSU_BOOT_ADDR_REDIRECT_OFFSET(hw_cpu));
}
diff --git a/arch/arm/mach-mvebu/system-controller.c b/arch/arm/mach-mvebu/system-controller.c
index 76cbc82a7407..04d9ebe6a90a 100644
--- a/arch/arm/mach-mvebu/system-controller.c
+++ b/arch/arm/mach-mvebu/system-controller.c
@@ -153,7 +153,7 @@ void mvebu_system_controller_set_cpu_boot_addr(void *boot_addr)
if (of_machine_is_compatible("marvell,armada375"))
mvebu_armada375_smp_wa_init();
- writel(virt_to_phys(boot_addr), system_controller_base +
+ writel(__pa_symbol(boot_addr), system_controller_base +
mvebu_sc->resume_boot_addr);
}
#endif
diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c
index 1662071bb2cc..bd8089ff929f 100644
--- a/arch/arm/mach-omap2/control.c
+++ b/arch/arm/mach-omap2/control.c
@@ -315,15 +315,15 @@ void omap3_save_scratchpad_contents(void)
scratchpad_contents.boot_config_ptr = 0x0;
if (cpu_is_omap3630())
scratchpad_contents.public_restore_ptr =
- virt_to_phys(omap3_restore_3630);
+ __pa_symbol(omap3_restore_3630);
else if (omap_rev() != OMAP3430_REV_ES3_0 &&
omap_rev() != OMAP3430_REV_ES3_1 &&
omap_rev() != OMAP3430_REV_ES3_1_2)
scratchpad_contents.public_restore_ptr =
- virt_to_phys(omap3_restore);
+ __pa_symbol(omap3_restore);
else
scratchpad_contents.public_restore_ptr =
- virt_to_phys(omap3_restore_es3);
+ __pa_symbol(omap3_restore_es3);
if (omap_type() == OMAP2_DEVICE_TYPE_GP)
scratchpad_contents.secure_ram_restore_ptr = 0x0;
@@ -395,7 +395,7 @@ void omap3_save_scratchpad_contents(void)
sdrc_block_contents.flags = 0x0;
sdrc_block_contents.block_size = 0x0;
- arm_context_addr = virt_to_phys(omap3_arm_context);
+ arm_context_addr = __pa_symbol(omap3_arm_context);
/* Copy all the contents to the scratchpad location */
scratchpad_address = OMAP2_L4_IO_ADDRESS(OMAP343X_SCRATCHPAD);
diff --git a/arch/arm/mach-omap2/omap-mpuss-lowpower.c b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
index ad982465efd0..d1e03c03219e 100644
--- a/arch/arm/mach-omap2/omap-mpuss-lowpower.c
+++ b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
@@ -273,7 +273,7 @@ int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state)
cpu_clear_prev_logic_pwrst(cpu);
pwrdm_set_next_pwrst(pm_info->pwrdm, power_state);
pwrdm_set_logic_retst(pm_info->pwrdm, cpu_logic_state);
- set_cpu_wakeup_addr(cpu, virt_to_phys(omap_pm_ops.resume));
+ set_cpu_wakeup_addr(cpu, __pa_symbol(omap_pm_ops.resume));
omap_pm_ops.scu_prepare(cpu, power_state);
l2x0_pwrst_prepare(cpu, save_state);
@@ -325,7 +325,7 @@ int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state)
pwrdm_clear_all_prev_pwrst(pm_info->pwrdm);
pwrdm_set_next_pwrst(pm_info->pwrdm, power_state);
- set_cpu_wakeup_addr(cpu, virt_to_phys(omap_pm_ops.hotplug_restart));
+ set_cpu_wakeup_addr(cpu, __pa_symbol(omap_pm_ops.hotplug_restart));
omap_pm_ops.scu_prepare(cpu, power_state);
/*
@@ -459,9 +459,9 @@ void __init omap4_mpuss_early_init(void)
sar_base = omap4_get_sar_ram_base();
if (cpu_is_omap443x())
- startup_pa = virt_to_phys(omap4_secondary_startup);
+ startup_pa = __pa_symbol(omap4_secondary_startup);
else
- startup_pa = virt_to_phys(omap4460_secondary_startup);
+ startup_pa = __pa_symbol(omap4460_secondary_startup);
writel_relaxed(startup_pa, sar_base + CPU1_WAKEUP_NS_PA_ADDR_OFFSET);
}
diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c
index b4de3da6dffa..003353b0b794 100644
--- a/arch/arm/mach-omap2/omap-smp.c
+++ b/arch/arm/mach-omap2/omap-smp.c
@@ -316,9 +316,9 @@ static void __init omap4_smp_prepare_cpus(unsigned int max_cpus)
* A barrier is added to ensure that write buffer is drained
*/
if (omap_secure_apis_support())
- omap_auxcoreboot_addr(virt_to_phys(cfg.startup_addr));
+ omap_auxcoreboot_addr(__pa_symbol(cfg.startup_addr));
else
- writel_relaxed(virt_to_phys(cfg.startup_addr),
+ writel_relaxed(__pa_symbol(cfg.startup_addr),
base + OMAP_AUX_CORE_BOOT_1);
}
diff --git a/arch/arm/mach-prima2/platsmp.c b/arch/arm/mach-prima2/platsmp.c
index 0875b99add18..75ef5d4be554 100644
--- a/arch/arm/mach-prima2/platsmp.c
+++ b/arch/arm/mach-prima2/platsmp.c
@@ -65,7 +65,7 @@ static int sirfsoc_boot_secondary(unsigned int cpu, struct task_struct *idle)
* waiting for. This would wake up the secondary core from WFE
*/
#define SIRFSOC_CPU1_JUMPADDR_OFFSET 0x2bc
- __raw_writel(virt_to_phys(sirfsoc_secondary_startup),
+ __raw_writel(__pa_symbol(sirfsoc_secondary_startup),
clk_base + SIRFSOC_CPU1_JUMPADDR_OFFSET);
#define SIRFSOC_CPU1_WAKEMAGIC_OFFSET 0x2b8
diff --git a/arch/arm/mach-prima2/pm.c b/arch/arm/mach-prima2/pm.c
index 83e94c95e314..b0bcf1ff02dd 100644
--- a/arch/arm/mach-prima2/pm.c
+++ b/arch/arm/mach-prima2/pm.c
@@ -54,7 +54,7 @@ static void sirfsoc_set_sleep_mode(u32 mode)
static int sirfsoc_pre_suspend_power_off(void)
{
- u32 wakeup_entry = virt_to_phys(cpu_resume);
+ u32 wakeup_entry = __pa_symbol(cpu_resume);
sirfsoc_rtc_iobrg_writel(wakeup_entry, sirfsoc_pwrc_base +
SIRFSOC_PWRC_SCRATCH_PAD1);
diff --git a/arch/arm/mach-pxa/palmz72.c b/arch/arm/mach-pxa/palmz72.c
index 9c308de158c6..29630061e700 100644
--- a/arch/arm/mach-pxa/palmz72.c
+++ b/arch/arm/mach-pxa/palmz72.c
@@ -249,7 +249,7 @@ static int palmz72_pm_suspend(void)
store_ptr = *PALMZ72_SAVE_DWORD;
/* Setting PSPR to a proper value */
- PSPR = virt_to_phys(&palmz72_resume_info);
+ PSPR = __pa_symbol(&palmz72_resume_info);
return 0;
}
diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index 12b94357fbc1..d16ffcab0e45 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -85,7 +85,7 @@ static void pxa25x_cpu_pm_enter(suspend_state_t state)
static int pxa25x_cpu_pm_prepare(void)
{
/* set resume return address */
- PSPR = virt_to_phys(cpu_resume);
+ PSPR = __pa_symbol(cpu_resume);
return 0;
}
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index c0185c5c5a08..9b69be4e9fe3 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -168,7 +168,7 @@ static int pxa27x_cpu_pm_valid(suspend_state_t state)
static int pxa27x_cpu_pm_prepare(void)
{
/* set resume return address */
- PSPR = virt_to_phys(cpu_resume);
+ PSPR = __pa_symbol(cpu_resume);
return 0;
}
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index 87acc96388c7..0cc9f124c9ac 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -123,7 +123,7 @@ static void pxa3xx_cpu_pm_suspend(void)
PSPR = 0x5c014000;
/* overwrite with the resume address */
- *p = virt_to_phys(cpu_resume);
+ *p = __pa_symbol(cpu_resume);
cpu_suspend(0, pxa3xx_finish_suspend);
diff --git a/arch/arm/mach-realview/platsmp-dt.c b/arch/arm/mach-realview/platsmp-dt.c
index 70ca99eb52c6..c242423bf8db 100644
--- a/arch/arm/mach-realview/platsmp-dt.c
+++ b/arch/arm/mach-realview/platsmp-dt.c
@@ -76,7 +76,7 @@ static void __init realview_smp_prepare_cpus(unsigned int max_cpus)
}
/* Put the boot address in this magic register */
regmap_write(map, REALVIEW_SYS_FLAGSSET_OFFSET,
- virt_to_phys(versatile_secondary_startup));
+ __pa_symbol(versatile_secondary_startup));
}
static const struct smp_operations realview_dt_smp_ops __initconst = {
diff --git a/arch/arm/mach-rockchip/platsmp.c b/arch/arm/mach-rockchip/platsmp.c
index 4d827a069d49..3abafdbdd7f4 100644
--- a/arch/arm/mach-rockchip/platsmp.c
+++ b/arch/arm/mach-rockchip/platsmp.c
@@ -156,7 +156,7 @@ static int rockchip_boot_secondary(unsigned int cpu, struct task_struct *idle)
*/
mdelay(1); /* ensure the cpus other than cpu0 to startup */
- writel(virt_to_phys(secondary_startup), sram_base_addr + 8);
+ writel(__pa_symbol(secondary_startup), sram_base_addr + 8);
writel(0xDEADBEAF, sram_base_addr + 4);
dsb_sev();
}
@@ -195,7 +195,7 @@ static int __init rockchip_smp_prepare_sram(struct device_node *node)
}
/* set the boot function for the sram code */
- rockchip_boot_fn = virt_to_phys(secondary_startup);
+ rockchip_boot_fn = __pa_symbol(secondary_startup);
/* copy the trampoline to sram, that runs during startup of the core */
memcpy(sram_base_addr, &rockchip_secondary_trampoline, trampoline_sz);
diff --git a/arch/arm/mach-rockchip/pm.c b/arch/arm/mach-rockchip/pm.c
index bee8c8051929..0592534e0b88 100644
--- a/arch/arm/mach-rockchip/pm.c
+++ b/arch/arm/mach-rockchip/pm.c
@@ -62,7 +62,7 @@ static inline u32 rk3288_l2_config(void)
static void rk3288_config_bootdata(void)
{
rkpm_bootdata_cpusp = rk3288_bootram_phy + (SZ_4K - 8);
- rkpm_bootdata_cpu_code = virt_to_phys(cpu_resume);
+ rkpm_bootdata_cpu_code = __pa_symbol(cpu_resume);
rkpm_bootdata_l2ctlr_f = 1;
rkpm_bootdata_l2ctlr = rk3288_l2_config();
diff --git a/arch/arm/mach-s3c24xx/mach-jive.c b/arch/arm/mach-s3c24xx/mach-jive.c
index 7d99fe8f6157..4f2ffca88e6c 100644
--- a/arch/arm/mach-s3c24xx/mach-jive.c
+++ b/arch/arm/mach-s3c24xx/mach-jive.c
@@ -483,7 +483,7 @@ static int jive_pm_suspend(void)
* correct address to resume from. */
__raw_writel(0x2BED, S3C2412_INFORM0);
- __raw_writel(virt_to_phys(s3c_cpu_resume), S3C2412_INFORM1);
+ __raw_writel(__pa_symbol(s3c_cpu_resume), S3C2412_INFORM1);
return 0;
}
diff --git a/arch/arm/mach-s3c24xx/pm-s3c2410.c b/arch/arm/mach-s3c24xx/pm-s3c2410.c
index 20e481d8a33a..a4588daeddb0 100644
--- a/arch/arm/mach-s3c24xx/pm-s3c2410.c
+++ b/arch/arm/mach-s3c24xx/pm-s3c2410.c
@@ -45,7 +45,7 @@ static void s3c2410_pm_prepare(void)
{
/* ensure at least GSTATUS3 has the resume address */
- __raw_writel(virt_to_phys(s3c_cpu_resume), S3C2410_GSTATUS3);
+ __raw_writel(__pa_symbol(s3c_cpu_resume), S3C2410_GSTATUS3);
S3C_PMDBG("GSTATUS3 0x%08x\n", __raw_readl(S3C2410_GSTATUS3));
S3C_PMDBG("GSTATUS4 0x%08x\n", __raw_readl(S3C2410_GSTATUS4));
diff --git a/arch/arm/mach-s3c24xx/pm-s3c2416.c b/arch/arm/mach-s3c24xx/pm-s3c2416.c
index c0e328e37bd6..b5bbf0d5985c 100644
--- a/arch/arm/mach-s3c24xx/pm-s3c2416.c
+++ b/arch/arm/mach-s3c24xx/pm-s3c2416.c
@@ -48,7 +48,7 @@ static void s3c2416_pm_prepare(void)
* correct address to resume from.
*/
__raw_writel(0x2BED, S3C2412_INFORM0);
- __raw_writel(virt_to_phys(s3c_cpu_resume), S3C2412_INFORM1);
+ __raw_writel(__pa_symbol(s3c_cpu_resume), S3C2412_INFORM1);
}
static int s3c2416_pm_add(struct device *dev, struct subsys_interface *sif)
diff --git a/arch/arm/mach-s3c64xx/pm.c b/arch/arm/mach-s3c64xx/pm.c
index 59d91b83b03d..945a9d1e1a71 100644
--- a/arch/arm/mach-s3c64xx/pm.c
+++ b/arch/arm/mach-s3c64xx/pm.c
@@ -304,7 +304,7 @@ static void s3c64xx_pm_prepare(void)
wake_irqs, ARRAY_SIZE(wake_irqs));
/* store address of resume. */
- __raw_writel(virt_to_phys(s3c_cpu_resume), S3C64XX_INFORM0);
+ __raw_writel(__pa_symbol(s3c_cpu_resume), S3C64XX_INFORM0);
/* ensure previous wakeup state is cleared before sleeping */
__raw_writel(__raw_readl(S3C64XX_WAKEUP_STAT), S3C64XX_WAKEUP_STAT);
diff --git a/arch/arm/mach-s5pv210/pm.c b/arch/arm/mach-s5pv210/pm.c
index 21b4b13c5ab7..2d5f08015e34 100644
--- a/arch/arm/mach-s5pv210/pm.c
+++ b/arch/arm/mach-s5pv210/pm.c
@@ -69,7 +69,7 @@ static void s5pv210_pm_prepare(void)
__raw_writel(s5pv210_irqwake_intmask, S5P_WAKEUP_MASK);
/* ensure at least INFORM0 has the resume address */
- __raw_writel(virt_to_phys(s5pv210_cpu_resume), S5P_INFORM0);
+ __raw_writel(__pa_symbol(s5pv210_cpu_resume), S5P_INFORM0);
tmp = __raw_readl(S5P_SLEEP_CFG);
tmp &= ~(S5P_SLEEP_CFG_OSC_EN | S5P_SLEEP_CFG_USBOSC_EN);
diff --git a/arch/arm/mach-sa1100/pm.c b/arch/arm/mach-sa1100/pm.c
index 34853d5dfda2..9a7079f565bd 100644
--- a/arch/arm/mach-sa1100/pm.c
+++ b/arch/arm/mach-sa1100/pm.c
@@ -73,7 +73,7 @@ static int sa11x0_pm_enter(suspend_state_t state)
RCSR = RCSR_HWR | RCSR_SWR | RCSR_WDR | RCSR_SMR;
/* set resume return address */
- PSPR = virt_to_phys(cpu_resume);
+ PSPR = __pa_symbol(cpu_resume);
/* go zzz */
cpu_suspend(0, sa1100_finish_suspend);
diff --git a/arch/arm/mach-shmobile/platsmp-apmu.c b/arch/arm/mach-shmobile/platsmp-apmu.c
index 0c6bb458b7a4..71729b8d1900 100644
--- a/arch/arm/mach-shmobile/platsmp-apmu.c
+++ b/arch/arm/mach-shmobile/platsmp-apmu.c
@@ -171,7 +171,7 @@ static void apmu_parse_dt(void (*fn)(struct resource *res, int cpu, int bit))
static void __init shmobile_smp_apmu_setup_boot(void)
{
/* install boot code shared by all CPUs */
- shmobile_boot_fn = virt_to_phys(shmobile_smp_boot);
+ shmobile_boot_fn = __pa_symbol(shmobile_smp_boot);
}
void __init shmobile_smp_apmu_prepare_cpus(unsigned int max_cpus,
@@ -185,7 +185,7 @@ void __init shmobile_smp_apmu_prepare_cpus(unsigned int max_cpus,
int shmobile_smp_apmu_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
/* For this particular CPU register boot vector */
- shmobile_smp_hook(cpu, virt_to_phys(secondary_startup), 0);
+ shmobile_smp_hook(cpu, __pa_symbol(secondary_startup), 0);
return apmu_wrap(cpu, apmu_power_on);
}
@@ -301,7 +301,7 @@ int shmobile_smp_apmu_cpu_kill(unsigned int cpu)
#if defined(CONFIG_SUSPEND)
static int shmobile_smp_apmu_do_suspend(unsigned long cpu)
{
- shmobile_smp_hook(cpu, virt_to_phys(cpu_resume), 0);
+ shmobile_smp_hook(cpu, __pa_symbol(cpu_resume), 0);
shmobile_smp_apmu_cpu_shutdown(cpu);
cpu_do_idle(); /* WFI selects Core Standby */
return 1;
diff --git a/arch/arm/mach-shmobile/platsmp-scu.c b/arch/arm/mach-shmobile/platsmp-scu.c
index d1ecaf37d142..f1a1efde4beb 100644
--- a/arch/arm/mach-shmobile/platsmp-scu.c
+++ b/arch/arm/mach-shmobile/platsmp-scu.c
@@ -24,7 +24,7 @@ static void __iomem *shmobile_scu_base;
static int shmobile_scu_cpu_prepare(unsigned int cpu)
{
/* For this particular CPU register SCU SMP boot vector */
- shmobile_smp_hook(cpu, virt_to_phys(shmobile_boot_scu),
+ shmobile_smp_hook(cpu, __pa_symbol(shmobile_boot_scu),
shmobile_scu_base_phys);
return 0;
}
@@ -33,7 +33,7 @@ void __init shmobile_smp_scu_prepare_cpus(phys_addr_t scu_base_phys,
unsigned int max_cpus)
{
/* install boot code shared by all CPUs */
- shmobile_boot_fn = virt_to_phys(shmobile_smp_boot);
+ shmobile_boot_fn = __pa_symbol(shmobile_smp_boot);
/* enable SCU and cache coherency on booting CPU */
shmobile_scu_base_phys = scu_base_phys;
diff --git a/arch/arm/mach-socfpga/platsmp.c b/arch/arm/mach-socfpga/platsmp.c
index 07945748b571..0ee76772b507 100644
--- a/arch/arm/mach-socfpga/platsmp.c
+++ b/arch/arm/mach-socfpga/platsmp.c
@@ -40,7 +40,7 @@ static int socfpga_boot_secondary(unsigned int cpu, struct task_struct *idle)
memcpy(phys_to_virt(0), &secondary_trampoline, trampoline_size);
- writel(virt_to_phys(secondary_startup),
+ writel(__pa_symbol(secondary_startup),
sys_manager_base_addr + (socfpga_cpu1start_addr & 0x000000ff));
flush_cache_all();
@@ -63,7 +63,7 @@ static int socfpga_a10_boot_secondary(unsigned int cpu, struct task_struct *idle
SOCFPGA_A10_RSTMGR_MODMPURST);
memcpy(phys_to_virt(0), &secondary_trampoline, trampoline_size);
- writel(virt_to_phys(secondary_startup),
+ writel(__pa_symbol(secondary_startup),
sys_manager_base_addr + (socfpga_cpu1start_addr & 0x00000fff));
flush_cache_all();
diff --git a/arch/arm/mach-spear/platsmp.c b/arch/arm/mach-spear/platsmp.c
index 8d1e2d551786..39038a03836a 100644
--- a/arch/arm/mach-spear/platsmp.c
+++ b/arch/arm/mach-spear/platsmp.c
@@ -117,7 +117,7 @@ static void __init spear13xx_smp_prepare_cpus(unsigned int max_cpus)
* (presently it is in SRAM). The BootMonitor waits until it receives a
* soft interrupt, and then the secondary CPU branches to this address.
*/
- __raw_writel(virt_to_phys(spear13xx_secondary_startup), SYS_LOCATION);
+ __raw_writel(__pa_symbol(spear13xx_secondary_startup), SYS_LOCATION);
}
const struct smp_operations spear13xx_smp_ops __initconst = {
diff --git a/arch/arm/mach-sti/platsmp.c b/arch/arm/mach-sti/platsmp.c
index ea5a2277ee46..231f19e17436 100644
--- a/arch/arm/mach-sti/platsmp.c
+++ b/arch/arm/mach-sti/platsmp.c
@@ -103,7 +103,7 @@ static void __init sti_smp_prepare_cpus(unsigned int max_cpus)
u32 __iomem *cpu_strt_ptr;
u32 release_phys;
int cpu;
- unsigned long entry_pa = virt_to_phys(sti_secondary_startup);
+ unsigned long entry_pa = __pa_symbol(sti_secondary_startup);
np = of_find_compatible_node(NULL, NULL, "arm,cortex-a9-scu");
diff --git a/arch/arm/mach-sunxi/platsmp.c b/arch/arm/mach-sunxi/platsmp.c
index 6642267812c9..8fb5088464db 100644
--- a/arch/arm/mach-sunxi/platsmp.c
+++ b/arch/arm/mach-sunxi/platsmp.c
@@ -80,7 +80,7 @@ static int sun6i_smp_boot_secondary(unsigned int cpu,
spin_lock(&cpu_lock);
/* Set CPU boot address */
- writel(virt_to_phys(secondary_startup),
+ writel(__pa_symbol(secondary_startup),
cpucfg_membase + CPUCFG_PRIVATE0_REG);
/* Assert the CPU core in reset */
@@ -162,7 +162,7 @@ static int sun8i_smp_boot_secondary(unsigned int cpu,
spin_lock(&cpu_lock);
/* Set CPU boot address */
- writel(virt_to_phys(secondary_startup),
+ writel(__pa_symbol(secondary_startup),
cpucfg_membase + CPUCFG_PRIVATE0_REG);
/* Assert the CPU core in reset */
diff --git a/arch/arm/mach-tango/platsmp.c b/arch/arm/mach-tango/platsmp.c
index 98c62a4a8623..2f0c6c050fed 100644
--- a/arch/arm/mach-tango/platsmp.c
+++ b/arch/arm/mach-tango/platsmp.c
@@ -5,7 +5,7 @@
static int tango_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
- tango_set_aux_boot_addr(virt_to_phys(secondary_startup));
+ tango_set_aux_boot_addr(__pa_symbol(secondary_startup));
tango_start_aux_core(cpu);
return 0;
}
diff --git a/arch/arm/mach-tango/pm.c b/arch/arm/mach-tango/pm.c
index b05c6d6f99d0..406c0814eb6e 100644
--- a/arch/arm/mach-tango/pm.c
+++ b/arch/arm/mach-tango/pm.c
@@ -5,7 +5,7 @@
static int tango_pm_powerdown(unsigned long arg)
{
- tango_suspend(virt_to_phys(cpu_resume));
+ tango_suspend(__pa_symbol(cpu_resume));
return -EIO; /* tango_suspend has failed */
}
diff --git a/arch/arm/mach-tegra/reset.c b/arch/arm/mach-tegra/reset.c
index 6fd9db54887e..dc558892753c 100644
--- a/arch/arm/mach-tegra/reset.c
+++ b/arch/arm/mach-tegra/reset.c
@@ -94,14 +94,14 @@ void __init tegra_cpu_reset_handler_init(void)
__tegra_cpu_reset_handler_data[TEGRA_RESET_MASK_PRESENT] =
*((u32 *)cpu_possible_mask);
__tegra_cpu_reset_handler_data[TEGRA_RESET_STARTUP_SECONDARY] =
- virt_to_phys((void *)secondary_startup);
+ __pa_symbol((void *)secondary_startup);
#endif
#ifdef CONFIG_PM_SLEEP
__tegra_cpu_reset_handler_data[TEGRA_RESET_STARTUP_LP1] =
TEGRA_IRAM_LPx_RESUME_AREA;
__tegra_cpu_reset_handler_data[TEGRA_RESET_STARTUP_LP2] =
- virt_to_phys((void *)tegra_resume);
+ __pa_symbol((void *)tegra_resume);
#endif
tegra_cpu_reset_handler_enable();
diff --git a/arch/arm/mach-ux500/platsmp.c b/arch/arm/mach-ux500/platsmp.c
index 8f2f615ff958..8c8f26389067 100644
--- a/arch/arm/mach-ux500/platsmp.c
+++ b/arch/arm/mach-ux500/platsmp.c
@@ -54,7 +54,7 @@ static void wakeup_secondary(void)
* backup ram register at offset 0x1FF0, which is what boot rom code
* is waiting for. This will wake up the secondary core from WFE.
*/
- writel(virt_to_phys(secondary_startup),
+ writel(__pa_symbol(secondary_startup),
backupram + UX500_CPU1_JUMPADDR_OFFSET);
writel(0xA1FEED01,
backupram + UX500_CPU1_WAKEMAGIC_OFFSET);
diff --git a/arch/arm/mach-vexpress/dcscb.c b/arch/arm/mach-vexpress/dcscb.c
index 5cedcf572104..ee2a0faafaa1 100644
--- a/arch/arm/mach-vexpress/dcscb.c
+++ b/arch/arm/mach-vexpress/dcscb.c
@@ -166,7 +166,7 @@ static int __init dcscb_init(void)
* Future entries into the kernel can now go
* through the cluster entry vectors.
*/
- vexpress_flags_set(virt_to_phys(mcpm_entry_point));
+ vexpress_flags_set(__pa_symbol(mcpm_entry_point));
return 0;
}
diff --git a/arch/arm/mach-vexpress/platsmp.c b/arch/arm/mach-vexpress/platsmp.c
index 8b8d0724f6c6..575588633a36 100644
--- a/arch/arm/mach-vexpress/platsmp.c
+++ b/arch/arm/mach-vexpress/platsmp.c
@@ -61,7 +61,7 @@ static void __init vexpress_smp_dt_prepare_cpus(unsigned int max_cpus)
* until it receives a soft interrupt, and then the
* secondary CPU branches to this address.
*/
- vexpress_flags_set(virt_to_phys(versatile_secondary_startup));
+ vexpress_flags_set(__pa_symbol(versatile_secondary_startup));
}
const struct smp_operations vexpress_smp_dt_ops __initconst = {
diff --git a/arch/arm/mach-vexpress/tc2_pm.c b/arch/arm/mach-vexpress/tc2_pm.c
index 1aa4ccece69f..9b5f3c427086 100644
--- a/arch/arm/mach-vexpress/tc2_pm.c
+++ b/arch/arm/mach-vexpress/tc2_pm.c
@@ -54,7 +54,7 @@ static int tc2_pm_cpu_powerup(unsigned int cpu, unsigned int cluster)
if (cluster >= TC2_CLUSTERS || cpu >= tc2_nr_cpus[cluster])
return -EINVAL;
ve_spc_set_resume_addr(cluster, cpu,
- virt_to_phys(mcpm_entry_point));
+ __pa_symbol(mcpm_entry_point));
ve_spc_cpu_wakeup_irq(cluster, cpu, true);
return 0;
}
@@ -159,7 +159,7 @@ static int tc2_pm_wait_for_powerdown(unsigned int cpu, unsigned int cluster)
static void tc2_pm_cpu_suspend_prepare(unsigned int cpu, unsigned int cluster)
{
- ve_spc_set_resume_addr(cluster, cpu, virt_to_phys(mcpm_entry_point));
+ ve_spc_set_resume_addr(cluster, cpu, __pa_symbol(mcpm_entry_point));
}
static void tc2_pm_cpu_is_up(unsigned int cpu, unsigned int cluster)
diff --git a/arch/arm/mach-zx/platsmp.c b/arch/arm/mach-zx/platsmp.c
index 0297f92084e0..afb9a82dedc3 100644
--- a/arch/arm/mach-zx/platsmp.c
+++ b/arch/arm/mach-zx/platsmp.c
@@ -76,7 +76,7 @@ void __init zx_smp_prepare_cpus(unsigned int max_cpus)
* until it receives a soft interrupt, and then the
* secondary CPU branches to this address.
*/
- __raw_writel(virt_to_phys(zx_secondary_startup),
+ __raw_writel(__pa_symbol(zx_secondary_startup),
aonsysctrl_base + AON_SYS_CTRL_RESERVED1);
iounmap(aonsysctrl_base);
@@ -94,7 +94,7 @@ void __init zx_smp_prepare_cpus(unsigned int max_cpus)
/* Map the first 4 KB IRAM for suspend usage */
sys_iram = __arm_ioremap_exec(ZX_IRAM_BASE, PAGE_SIZE, false);
- zx_secondary_startup_pa = virt_to_phys(zx_secondary_startup);
+ zx_secondary_startup_pa = __pa_symbol(zx_secondary_startup);
fncpy(sys_iram, &zx_resume_jump, zx_suspend_iram_sz);
}
diff --git a/arch/arm/mach-zynq/platsmp.c b/arch/arm/mach-zynq/platsmp.c
index 7cd9865bdeb7..caa6d5fe9078 100644
--- a/arch/arm/mach-zynq/platsmp.c
+++ b/arch/arm/mach-zynq/platsmp.c
@@ -89,7 +89,7 @@ EXPORT_SYMBOL(zynq_cpun_start);
static int zynq_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
- return zynq_cpun_start(virt_to_phys(secondary_startup), cpu);
+ return zynq_cpun_start(__pa_symbol(secondary_startup), cpu);
}
/*
--
2.9.3
^ permalink raw reply related [flat|nested] 35+ messages in thread
* Re: [PATCH v4 0/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL
2016-12-26 20:38 ` [PATCH v4 " Florian Fainelli
` (3 preceding siblings ...)
2016-12-26 20:38 ` [PATCH v4 4/4] ARM: treewide: Replace uses of virt_to_phys with __pa_symbol Florian Fainelli
@ 2017-01-02 14:10 ` Russell King - ARM Linux
4 siblings, 0 replies; 35+ messages in thread
From: Russell King - ARM Linux @ 2017-01-02 14:10 UTC (permalink / raw)
To: Florian Fainelli
Cc: linux-arm-kernel, nicolas.pitre, panand, chris.brandt, arnd,
jonathan.austin, pawel.moll, vladimir.murzin, mark.rutland,
ard.biesheuvel, keescook, matt, labbott, kirill.shutemov, ben,
js07.lee, stefan, linux-kernel, linux-mtd, cyrille.pitchen,
richard, boris.brezillon, computersforpeace, dwmw2
On Mon, Dec 26, 2016 at 12:38:38PM -0800, Florian Fainelli wrote:
> Hi all,
>
> This patch series builds on top of Laura's [PATCHv5 00/10] CONFIG_DEBUG_VIRTUAL
> for arm64 to add support for CONFIG_DEBUG_VIRTUAL for ARM.
>
> This was tested on a Brahma B15 platform (ARMv7 + HIGHMEM + LPAE).
>
> Note that the treewide changes would involve a huge CC list, which
> is why it has been purposely trimmed to just focusing on the DEBUG_VIRTUAL
> aspect.
Nothing stands out from a quick read-through of these patches, so for the
core ARM and SA11x0 bits:
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Thanks.
--
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up
according to speedtest.net.
^ permalink raw reply [flat|nested] 35+ messages in thread
end of thread, other threads:[~2017-01-02 14:11 UTC | newest]
Thread overview: 35+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-12-06 23:50 [PATCHv5 00/11] CONFIG_DEBUG_VIRTUAL for arm64 Laura Abbott
2016-12-06 23:50 ` [PATCHv5 01/11] lib/Kconfig.debug: Add ARCH_HAS_DEBUG_VIRTUAL Laura Abbott
2016-12-06 23:50 ` [PATCHv5 02/11] mm/cma: Cleanup highmem check Laura Abbott
2016-12-06 23:50 ` [PATCHv5 03/11] arm64: Move some macros under #ifndef __ASSEMBLY__ Laura Abbott
2016-12-06 23:50 ` [PATCHv5 04/11] arm64: Add cast for virt_to_pfn Laura Abbott
2016-12-06 23:50 ` [PATCHv5 05/11] mm: Introduce lm_alias Laura Abbott
2016-12-06 23:50 ` [PATCHv5 06/11] arm64: Use __pa_symbol for kernel symbols Laura Abbott
2016-12-13 12:31 ` Mark Rutland
2016-12-06 23:50 ` [PATCHv5 07/11] drivers: firmware: psci: Use __pa_symbol for kernel symbol Laura Abbott
2016-12-06 23:50 ` [PATCHv5 08/11] kexec: Switch to __pa_symbol Laura Abbott
2016-12-06 23:50 ` [PATCHv5 09/11] mm/kasan: Switch to using __pa_symbol and lm_alias Laura Abbott
2016-12-13 12:31 ` Mark Rutland
2016-12-06 23:50 ` [PATCHv5 10/11] mm/usercopy: Switch to using lm_alias Laura Abbott
2016-12-06 23:50 ` [PATCHv5 11/11] arm64: Add support for CONFIG_DEBUG_VIRTUAL Laura Abbott
2016-12-08 18:59 ` [PATCH v2 0/4] ARM: " Florian Fainelli
2016-12-08 18:59 ` [PATCH v2 1/4] mtd: lart: Rename partition defines to be prefixed with PART_ Florian Fainelli
2016-12-08 18:59 ` [PATCH v2 2/4] ARM: Define KERNEL_START and KERNEL_END Florian Fainelli
2016-12-08 18:59 ` [PATCH v2 3/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Florian Fainelli
2016-12-08 18:59 ` [PATCH v2 4/4] ARM: treewide: Replace uses of virt_to_phys with __pa_symbol Florian Fainelli
2016-12-08 21:49 ` kbuild test robot
2016-12-09 23:36 ` [PATCH v3 0/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Florian Fainelli
2016-12-09 23:36 ` [PATCH v3 1/4] mtd: lart: Rename partition defines to be prefixed with PART_ Florian Fainelli
2016-12-14 7:08 ` Boris Brezillon
2016-12-09 23:36 ` [PATCH v3 2/4] ARM: Define KERNEL_START and KERNEL_END Florian Fainelli
2016-12-09 23:36 ` [PATCH v3 3/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Florian Fainelli
2016-12-22 2:40 ` Laura Abbott
2016-12-09 23:36 ` [PATCH v3 4/4] ARM: treewide: Replace uses of virt_to_phys with __pa_symbol Florian Fainelli
2016-12-13 20:29 ` [PATCH v3 0/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Florian Fainelli
2016-12-26 20:38 ` [PATCH v4 " Florian Fainelli
2016-12-26 20:38 ` [PATCH v4 1/4] mtd: lart: Rename partition defines to be prefixed with PART_ Florian Fainelli
2016-12-26 20:38 ` [PATCH v4 2/4] ARM: Define KERNEL_START and KERNEL_END Florian Fainelli
2016-12-26 20:38 ` [PATCH v4 3/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Florian Fainelli
2016-12-26 20:38 ` [PATCH v4 4/4] ARM: treewide: Replace uses of virt_to_phys with __pa_symbol Florian Fainelli
2017-01-02 14:10 ` [PATCH v4 0/4] ARM: Add support for CONFIG_DEBUG_VIRTUAL Russell King - ARM Linux
2016-12-13 13:50 ` [PATCHv5 00/11] CONFIG_DEBUG_VIRTUAL for arm64 Mark Rutland
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