From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
To: benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au
Cc: linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Subject: [PATCH V2 24/29] powerpc/mm: Hash linux abstractions for early init routines
Date: Mon, 8 Feb 2016 14:50:36 +0530 [thread overview]
Message-ID: <1454923241-6681-25-git-send-email-aneesh.kumar@linux.vnet.ibm.com> (raw)
In-Reply-To: <1454923241-6681-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/book3s/32/mmu-hash.h | 6 +-
arch/powerpc/include/asm/book3s/64/mmu-hash.h | 61 +-----------------
arch/powerpc/include/asm/book3s/64/mmu.h | 92 +++++++++++++++++++++++++++
arch/powerpc/include/asm/mmu.h | 25 ++++----
arch/powerpc/mm/hash_utils_64.c | 6 +-
5 files changed, 115 insertions(+), 75 deletions(-)
create mode 100644 arch/powerpc/include/asm/book3s/64/mmu.h
diff --git a/arch/powerpc/include/asm/book3s/32/mmu-hash.h b/arch/powerpc/include/asm/book3s/32/mmu-hash.h
index 16f513e5cbd7..b82e063494dd 100644
--- a/arch/powerpc/include/asm/book3s/32/mmu-hash.h
+++ b/arch/powerpc/include/asm/book3s/32/mmu-hash.h
@@ -1,5 +1,5 @@
-#ifndef _ASM_POWERPC_MMU_HASH32_H_
-#define _ASM_POWERPC_MMU_HASH32_H_
+#ifndef _ASM_POWERPC_BOOK3S_32_MMU_HASH_H_
+#define _ASM_POWERPC_BOOK3S_32_MMU_HASH_H_
/*
* 32-bit hash table MMU support
*/
@@ -90,4 +90,4 @@ typedef struct {
#define mmu_virtual_psize MMU_PAGE_4K
#define mmu_linear_psize MMU_PAGE_256M
-#endif /* _ASM_POWERPC_MMU_HASH32_H_ */
+#endif /* _ASM_POWERPC_BOOK3S_32_MMU_HASH_H_ */
diff --git a/arch/powerpc/include/asm/book3s/64/mmu-hash.h b/arch/powerpc/include/asm/book3s/64/mmu-hash.h
index 95ee27564804..ee929cb1a150 100644
--- a/arch/powerpc/include/asm/book3s/64/mmu-hash.h
+++ b/arch/powerpc/include/asm/book3s/64/mmu-hash.h
@@ -1,5 +1,5 @@
-#ifndef _ASM_POWERPC_MMU_HASH64_H_
-#define _ASM_POWERPC_MMU_HASH64_H_
+#ifndef _ASM_POWERPC_BOOK3S_64_MMU_HASH_H_
+#define _ASM_POWERPC_BOOK3S_64_MMU_HASH_H_
/*
* PowerPC64 memory management structures
*
@@ -126,24 +126,6 @@ extern struct hash_pte *htab_address;
extern unsigned long htab_size_bytes;
extern unsigned long htab_hash_mask;
-/*
- * Page size definition
- *
- * shift : is the "PAGE_SHIFT" value for that page size
- * sllp : is a bit mask with the value of SLB L || LP to be or'ed
- * directly to a slbmte "vsid" value
- * penc : is the HPTE encoding mask for the "LP" field:
- *
- */
-struct mmu_psize_def
-{
- unsigned int shift; /* number of bits */
- int penc[MMU_PAGE_COUNT]; /* HPTE encoding */
- unsigned int tlbiel; /* tlbiel supported for that page size */
- unsigned long avpnm; /* bits to mask out in AVPN in the HPTE */
- unsigned long sllp; /* SLB L||LP (exact mask to use in slbmte) */
-};
-extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
static inline int shift_to_mmu_psize(unsigned int shift)
{
@@ -209,11 +191,6 @@ static inline int segment_shift(int ssize)
/*
* The current system page and segment sizes
*/
-extern int mmu_linear_psize;
-extern int mmu_virtual_psize;
-extern int mmu_vmalloc_psize;
-extern int mmu_vmemmap_psize;
-extern int mmu_io_psize;
extern int mmu_kernel_ssize;
extern int mmu_highuser_ssize;
extern u16 mmu_slb_size;
@@ -511,38 +488,6 @@ static inline void subpage_prot_free(struct mm_struct *mm) {}
static inline void subpage_prot_init_new_context(struct mm_struct *mm) { }
#endif /* CONFIG_PPC_SUBPAGE_PROT */
-typedef unsigned long mm_context_id_t;
-struct spinlock;
-
-typedef struct {
- mm_context_id_t id;
- u16 user_psize; /* page size index */
-
-#ifdef CONFIG_PPC_MM_SLICES
- u64 low_slices_psize; /* SLB page size encodings */
- unsigned char high_slices_psize[SLICE_ARRAY_SIZE];
-#else
- u16 sllp; /* SLB page size encoding */
-#endif
- unsigned long vdso_base;
-#ifdef CONFIG_PPC_SUBPAGE_PROT
- struct subpage_prot_table spt;
-#endif /* CONFIG_PPC_SUBPAGE_PROT */
-#ifdef CONFIG_PPC_ICSWX
- struct spinlock *cop_lockp; /* guard acop and cop_pid */
- unsigned long acop; /* mask of enabled coprocessor types */
- unsigned int cop_pid; /* pid value used with coprocessors */
-#endif /* CONFIG_PPC_ICSWX */
-#ifdef CONFIG_PPC_64K_PAGES
- /* for 4K PTE fragment support */
- void *pte_frag;
-#endif
-#ifdef CONFIG_SPAPR_TCE_IOMMU
- struct list_head iommu_group_mem_list;
-#endif
-} mm_context_t;
-
-
#if 0
/*
* The code below is equivalent to this function for arguments
@@ -609,4 +554,4 @@ static inline unsigned long get_kernel_vsid(unsigned long ea, int ssize)
}
#endif /* __ASSEMBLY__ */
-#endif /* _ASM_POWERPC_MMU_HASH64_H_ */
+#endif /* _ASM_POWERPC_BOOK3S_64_MMU_HASH_H_ */
diff --git a/arch/powerpc/include/asm/book3s/64/mmu.h b/arch/powerpc/include/asm/book3s/64/mmu.h
new file mode 100644
index 000000000000..44a47bc81fb2
--- /dev/null
+++ b/arch/powerpc/include/asm/book3s/64/mmu.h
@@ -0,0 +1,92 @@
+#ifndef _ASM_POWERPC_BOOK3S_64_MMU_H_
+#define _ASM_POWERPC_BOOK3S_64_MMU_H_
+
+#ifndef __ASSEMBLY__
+/*
+ * Page size definition
+ *
+ * shift : is the "PAGE_SHIFT" value for that page size
+ * sllp : is a bit mask with the value of SLB L || LP to be or'ed
+ * directly to a slbmte "vsid" value
+ * penc : is the HPTE encoding mask for the "LP" field:
+ *
+ */
+struct mmu_psize_def {
+ unsigned int shift; /* number of bits */
+ int penc[MMU_PAGE_COUNT]; /* HPTE encoding */
+ unsigned int tlbiel; /* tlbiel supported for that page size */
+ unsigned long avpnm; /* bits to mask out in AVPN in the HPTE */
+ unsigned long sllp; /* SLB L||LP (exact mask to use in slbmte) */
+};
+extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
+#endif /* __ASSEMBLY__ */
+
+#ifdef CONFIG_PPC_STD_MMU_64
+/* 64-bit classic hash table MMU */
+#include <asm/book3s/64/mmu-hash.h>
+#endif
+
+#ifndef __ASSEMBLY__
+
+typedef unsigned long mm_context_id_t;
+struct spinlock;
+
+typedef struct {
+ mm_context_id_t id;
+ u16 user_psize; /* page size index */
+
+#ifdef CONFIG_PPC_MM_SLICES
+ u64 low_slices_psize; /* SLB page size encodings */
+ unsigned char high_slices_psize[SLICE_ARRAY_SIZE];
+#else
+ u16 sllp; /* SLB page size encoding */
+#endif
+ unsigned long vdso_base;
+#ifdef CONFIG_PPC_SUBPAGE_PROT
+ struct subpage_prot_table spt;
+#endif /* CONFIG_PPC_SUBPAGE_PROT */
+#ifdef CONFIG_PPC_ICSWX
+ struct spinlock *cop_lockp; /* guard acop and cop_pid */
+ unsigned long acop; /* mask of enabled coprocessor types */
+ unsigned int cop_pid; /* pid value used with coprocessors */
+#endif /* CONFIG_PPC_ICSWX */
+#ifdef CONFIG_PPC_64K_PAGES
+ /* for 4K PTE fragment support */
+ void *pte_frag;
+#endif
+#ifdef CONFIG_SPAPR_TCE_IOMMU
+ struct list_head iommu_group_mem_list;
+#endif
+} mm_context_t;
+
+/*
+ * The current system page and segment sizes
+ */
+extern int mmu_linear_psize;
+extern int mmu_virtual_psize;
+extern int mmu_vmalloc_psize;
+extern int mmu_vmemmap_psize;
+extern int mmu_io_psize;
+
+/* MMU initialization */
+extern void hlearly_init_mmu(void);
+static inline void early_init_mmu(void)
+{
+ return hlearly_init_mmu();
+}
+extern void hlearly_init_mmu_secondary(void);
+static inline void early_init_mmu_secondary(void)
+{
+ return hlearly_init_mmu_secondary();
+}
+
+extern void hlsetup_initial_memory_limit(phys_addr_t first_memblock_base,
+ phys_addr_t first_memblock_size);
+static inline void setup_initial_memory_limit(phys_addr_t first_memblock_base,
+ phys_addr_t first_memblock_size)
+{
+ return hlsetup_initial_memory_limit(first_memblock_base,
+ first_memblock_size);
+}
+#endif /* __ASSEMBLY__ */
+#endif /* _ASM_POWERPC_BOOK3S_64_MMU_H_ */
diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
index 18a1b7dbf5fb..e4117df50156 100644
--- a/arch/powerpc/include/asm/mmu.h
+++ b/arch/powerpc/include/asm/mmu.h
@@ -121,13 +121,6 @@ static inline void mmu_clear_feature(unsigned long feature)
extern unsigned int __start___mmu_ftr_fixup, __stop___mmu_ftr_fixup;
-/* MMU initialization */
-extern void early_init_mmu(void);
-extern void early_init_mmu_secondary(void);
-
-extern void setup_initial_memory_limit(phys_addr_t first_memblock_base,
- phys_addr_t first_memblock_size);
-
#ifdef CONFIG_PPC64
/* This is our real memory area size on ppc64 server, on embedded, we
* make it match the size our of bolted TLB area
@@ -180,10 +173,20 @@ static inline void assert_pte_locked(struct mm_struct *mm, unsigned long addr)
#define MMU_PAGE_COUNT 15
-#if defined(CONFIG_PPC_STD_MMU_64)
-/* 64-bit classic hash table MMU */
-#include <asm/book3s/64/mmu-hash.h>
-#elif defined(CONFIG_PPC_STD_MMU_32)
+#ifdef CONFIG_PPC_BOOK3S_64
+#include <asm/book3s/64/mmu.h>
+#else /* CONFIG_PPC_BOOK3S_64 */
+
+#ifndef __ASSEMBLY__
+/* MMU initialization */
+extern void early_init_mmu(void);
+extern void early_init_mmu_secondary(void);
+extern void setup_initial_memory_limit(phys_addr_t first_memblock_base,
+ phys_addr_t first_memblock_size);
+#endif /* __ASSEMBLY__ */
+#endif
+
+#if defined(CONFIG_PPC_STD_MMU_32)
/* 32-bit classic hash table MMU */
#include <asm/book3s/32/mmu-hash.h>
#elif defined(CONFIG_40x)
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index aec47cf45db2..aac47ca6a618 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -798,7 +798,7 @@ static void __init htab_initialize(void)
#undef KB
#undef MB
-void __init early_init_mmu(void)
+void __init hlearly_init_mmu(void)
{
/*
* initialize global variables
@@ -842,7 +842,7 @@ void __init early_init_mmu(void)
}
#ifdef CONFIG_SMP
-void early_init_mmu_secondary(void)
+void hlearly_init_mmu_secondary(void)
{
/* Initialize hash table for that CPU */
if (!firmware_has_feature(FW_FEATURE_LPAR))
@@ -1576,7 +1576,7 @@ void __kernel_map_pages(struct page *page, int numpages, int enable)
}
#endif /* CONFIG_DEBUG_PAGEALLOC */
-void setup_initial_memory_limit(phys_addr_t first_memblock_base,
+void hlsetup_initial_memory_limit(phys_addr_t first_memblock_base,
phys_addr_t first_memblock_size)
{
/* We don't currently support the first MEMBLOCK not mapping 0
--
2.5.0
next prev parent reply other threads:[~2016-02-08 9:21 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-08 9:20 [PATCH V2 00/29] Book3s abstraction in preparation for new MMU model Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 01/29] powerpc/mm: add _PAGE_HASHPTE similar to 4K hash Aneesh Kumar K.V
2016-02-12 2:49 ` Paul Mackerras
2016-02-13 5:08 ` Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 02/29] powerpc/mm: Split pgtable types to separate header Aneesh Kumar K.V
2016-02-12 2:52 ` Paul Mackerras
2016-02-13 5:12 ` Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 03/29] powerpc/mm: Switch book3s 64 with 64K page size to 4 level page table Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 04/29] powerpc/mm: Copy pgalloc (part 1) Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 05/29] powerpc/mm: Copy pgalloc (part 2) Aneesh Kumar K.V
2016-02-12 3:53 ` Paul Mackerras
2016-02-15 5:25 ` Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 06/29] powerpc/mm: Copy pgalloc (part 3) Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 07/29] mm: Make vm_get_page_prot arch specific Aneesh Kumar K.V
2016-02-15 3:21 ` Paul Mackerras
2016-02-15 4:40 ` Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 08/29] mm: Some arch may want to use HPAGE_PMD related values as variables Aneesh Kumar K.V
2016-02-15 4:11 ` Paul Mackerras
2016-02-16 8:12 ` Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 09/29] powerpc/mm: Hugetlbfs is book3s_64 and fsl_book3e (32 or 64) Aneesh Kumar K.V
2016-02-15 5:01 ` Paul Mackerras
2016-02-16 8:20 ` Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 10/29] powerpc/mm: free_hugepd_range split to hash and nonhash Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 11/29] powerpc/mm: Use helper instead of opencoding Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 12/29] powerpc/mm: Move hash64 specific defintions to seperate header Aneesh Kumar K.V
2016-02-15 5:24 ` Paul Mackerras
2016-02-16 8:25 ` Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 13/29] powerpc/mm: Move swap related definition ot hash64 header Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 14/29] powerpc/mm: Move hash page table related functions to pgtable-hash64.c Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 15/29] powerpc/mm: Rename hash specific page table bits (_PAGE* -> H_PAGE*) Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 16/29] powerpc/mm: Use flush_tlb_page in ptep_clear_flush_young Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 17/29] powerpc/mm: THP is only available on hash64 as of now Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 18/29] powerpc/mm: Use generic version of pmdp_clear_flush_young Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 19/29] powerpc/mm: Create a new headers for tlbflush for hash64 Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 20/29] powerpc/mm: Hash linux abstraction for page table accessors Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 21/29] powerpc/mm: Hash linux abstraction for functions in pgtable-hash.c Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 22/29] powerpc/mm: Hash linux abstraction for mmu context handling code Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 23/29] powerpc/mm: Move hash related mmu-*.h headers to book3s/ Aneesh Kumar K.V
2016-02-08 9:20 ` Aneesh Kumar K.V [this message]
2016-02-08 9:20 ` [PATCH V2 25/29] powerpc/mm: Hash linux abstraction for THP Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 26/29] powerpc/mm: Hash linux abstraction for HugeTLB Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 27/29] powerpc/mm: Hash linux abstraction for page table allocator Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 28/29] powerpc/mm: Hash linux abstraction for tlbflush routines Aneesh Kumar K.V
2016-02-08 9:20 ` [PATCH V2 29/29] powerpc/mm: Hash linux abstraction for pte swap encoding Aneesh Kumar K.V
2016-02-09 13:22 ` [PATCH V2 00/29] Book3s abstraction in preparation for new MMU model Aneesh Kumar K.V
2016-02-23 1:59 ` Scott Wood
2016-02-23 2:17 ` Aneesh Kumar K.V
2016-02-12 4:14 ` Paul Mackerras
2016-02-13 5:15 ` Aneesh Kumar K.V
2016-02-13 8:39 ` Denis Kirjanov
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