From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
To: benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
Michael Neuling <mikey@neuling.org>
Cc: linuxppc-dev@lists.ozlabs.org,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Subject: [RFC PATCH V1 12/33] powerpc/mm: Move hash64 specific defintions to seperate header
Date: Tue, 12 Jan 2016 12:45:47 +0530 [thread overview]
Message-ID: <1452582968-22669-13-git-send-email-aneesh.kumar@linux.vnet.ibm.com> (raw)
In-Reply-To: <1452582968-22669-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com>
Also split pgalloc 64k and 4k headers
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
---
.../include/asm/book3s/64/pgalloc-hash-4k.h | 92 ++++++++++
.../include/asm/book3s/64/pgalloc-hash-64k.h | 51 ++++++
arch/powerpc/include/asm/book3s/64/pgalloc-hash.h | 59 ++++++
arch/powerpc/include/asm/book3s/64/pgalloc.h | 199 +--------------------
4 files changed, 210 insertions(+), 191 deletions(-)
create mode 100644 arch/powerpc/include/asm/book3s/64/pgalloc-hash-4k.h
create mode 100644 arch/powerpc/include/asm/book3s/64/pgalloc-hash-64k.h
create mode 100644 arch/powerpc/include/asm/book3s/64/pgalloc-hash.h
diff --git a/arch/powerpc/include/asm/book3s/64/pgalloc-hash-4k.h b/arch/powerpc/include/asm/book3s/64/pgalloc-hash-4k.h
new file mode 100644
index 000000000000..d1d67e585ad4
--- /dev/null
+++ b/arch/powerpc/include/asm/book3s/64/pgalloc-hash-4k.h
@@ -0,0 +1,92 @@
+#ifndef _ASM_POWERPC_BOOK3S_64_PGALLOC_HASH_4K_H
+#define _ASM_POWERPC_BOOK3S_64_PGALLOC_HASH_4K_H
+
+static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
+ pgtable_t pte_page)
+{
+ pmd_set(pmd, (unsigned long)page_address(pte_page));
+}
+
+static inline pgtable_t pmd_pgtable(pmd_t pmd)
+{
+ return pmd_page(pmd);
+}
+
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
+ unsigned long address)
+{
+ return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO);
+}
+
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
+ unsigned long address)
+{
+ struct page *page;
+ pte_t *pte;
+
+ pte = pte_alloc_one_kernel(mm, address);
+ if (!pte)
+ return NULL;
+ page = virt_to_page(pte);
+ if (!pgtable_page_ctor(page)) {
+ __free_page(page);
+ return NULL;
+ }
+ return page;
+}
+
+static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
+{
+ free_page((unsigned long)pte);
+}
+
+static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage)
+{
+ pgtable_page_dtor(ptepage);
+ __free_page(ptepage);
+}
+
+static inline void pgtable_free(void *table, unsigned index_size)
+{
+ if (!index_size)
+ free_page((unsigned long)table);
+ else {
+ BUG_ON(index_size > MAX_PGTABLE_INDEX_SIZE);
+ kmem_cache_free(PGT_CACHE(index_size), table);
+ }
+}
+
+#ifdef CONFIG_SMP
+static inline void pgtable_free_tlb(struct mmu_gather *tlb,
+ void *table, int shift)
+{
+ unsigned long pgf = (unsigned long)table;
+ BUG_ON(shift > MAX_PGTABLE_INDEX_SIZE);
+ pgf |= shift;
+ tlb_remove_table(tlb, (void *)pgf);
+}
+
+static inline void __tlb_remove_table(void *_table)
+{
+ void *table = (void *)((unsigned long)_table & ~MAX_PGTABLE_INDEX_SIZE);
+ unsigned shift = (unsigned long)_table & MAX_PGTABLE_INDEX_SIZE;
+
+ pgtable_free(table, shift);
+}
+#else /* !CONFIG_SMP */
+static inline void pgtable_free_tlb(struct mmu_gather *tlb,
+ void *table, int shift)
+{
+ pgtable_free(table, shift);
+}
+#endif /* CONFIG_SMP */
+
+static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table,
+ unsigned long address)
+{
+ tlb_flush_pgtable(tlb, address);
+ pgtable_page_dtor(table);
+ pgtable_free_tlb(tlb, page_address(table), 0);
+}
+
+#endif /* _ASM_POWERPC_BOOK3S_64_PGALLOC_HASH_4K_H */
diff --git a/arch/powerpc/include/asm/book3s/64/pgalloc-hash-64k.h b/arch/powerpc/include/asm/book3s/64/pgalloc-hash-64k.h
new file mode 100644
index 000000000000..e2dab4f64316
--- /dev/null
+++ b/arch/powerpc/include/asm/book3s/64/pgalloc-hash-64k.h
@@ -0,0 +1,51 @@
+#ifndef _ASM_POWERPC_BOOK3S_64_PGALLOC_HASH_64K_H
+#define _ASM_POWERPC_BOOK3S_64_PGALLOC_HASH_64K_H
+
+extern pte_t *page_table_alloc(struct mm_struct *, unsigned long, int);
+extern void page_table_free(struct mm_struct *, unsigned long *, int);
+extern void pgtable_free_tlb(struct mmu_gather *tlb, void *table, int shift);
+#ifdef CONFIG_SMP
+extern void __tlb_remove_table(void *_table);
+#endif
+
+static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
+ pgtable_t pte_page)
+{
+ pmd_set(pmd, (unsigned long)pte_page);
+}
+
+static inline pgtable_t pmd_pgtable(pmd_t pmd)
+{
+ return (pgtable_t)pmd_page_vaddr(pmd);
+}
+
+static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
+ unsigned long address)
+{
+ return (pte_t *)page_table_alloc(mm, address, 1);
+}
+
+static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
+ unsigned long address)
+{
+ return (pgtable_t)page_table_alloc(mm, address, 0);
+}
+
+static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
+{
+ page_table_free(mm, (unsigned long *)pte, 1);
+}
+
+static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage)
+{
+ page_table_free(mm, (unsigned long *)ptepage, 0);
+}
+
+static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table,
+ unsigned long address)
+{
+ tlb_flush_pgtable(tlb, address);
+ pgtable_free_tlb(tlb, table, 0);
+}
+
+#endif /* _ASM_POWERPC_BOOK3S_64_PGALLOC_HASH_64K_H */
diff --git a/arch/powerpc/include/asm/book3s/64/pgalloc-hash.h b/arch/powerpc/include/asm/book3s/64/pgalloc-hash.h
new file mode 100644
index 000000000000..96f90c7e806f
--- /dev/null
+++ b/arch/powerpc/include/asm/book3s/64/pgalloc-hash.h
@@ -0,0 +1,59 @@
+#ifndef _ASM_POWERPC_BOOK3S_64_PGALLOC_HASH_H
+#define _ASM_POWERPC_BOOK3S_64_PGALLOC_HASH_H
+
+/*
+ * FIXME!!
+ * Between 4K and 64K pages, we differ in what is stored in pmd. ie.
+ * typedef pte_t *pgtable_t; -> 64K
+ * typedef struct page *pgtable_t; -> 4k
+ */
+#ifdef CONFIG_PPC_64K_PAGES
+#include <asm/book3s/64/pgalloc-hash-64k.h>
+#else
+#include <asm/book3s/64/pgalloc-hash-4k.h>
+#endif
+
+static inline pgd_t *pgd_alloc(struct mm_struct *mm)
+{
+ return kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE), GFP_KERNEL);
+}
+
+static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
+{
+ kmem_cache_free(PGT_CACHE(PGD_INDEX_SIZE), pgd);
+}
+
+static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
+{
+ return kmem_cache_alloc(PGT_CACHE(PUD_INDEX_SIZE),
+ GFP_KERNEL|__GFP_REPEAT);
+}
+
+static inline void pud_free(struct mm_struct *mm, pud_t *pud)
+{
+ kmem_cache_free(PGT_CACHE(PUD_INDEX_SIZE), pud);
+}
+
+static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
+{
+ return kmem_cache_alloc(PGT_CACHE(PMD_CACHE_INDEX),
+ GFP_KERNEL|__GFP_REPEAT);
+}
+
+static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
+{
+ kmem_cache_free(PGT_CACHE(PMD_CACHE_INDEX), pmd);
+}
+
+static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
+ unsigned long address)
+{
+ return pgtable_free_tlb(tlb, pmd, PMD_CACHE_INDEX);
+}
+
+static inline void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pud,
+ unsigned long address)
+{
+ pgtable_free_tlb(tlb, pud, PUD_INDEX_SIZE);
+}
+#endif /* _ASM_POWERPC_BOOK3S_64_PGALLOC_HASH_H */
diff --git a/arch/powerpc/include/asm/book3s/64/pgalloc.h b/arch/powerpc/include/asm/book3s/64/pgalloc.h
index 23b0dd07f9ae..ff3c0e36fe3d 100644
--- a/arch/powerpc/include/asm/book3s/64/pgalloc.h
+++ b/arch/powerpc/include/asm/book3s/64/pgalloc.h
@@ -18,6 +18,11 @@ struct vmemmap_backing {
};
extern struct vmemmap_backing *vmemmap_list;
+static inline void check_pgt_cache(void)
+{
+
+}
+
/*
* Functions that deal with pagetables that could be at any level of
* the table need to be passed an "index_size" so they know how to
@@ -41,32 +46,11 @@ extern struct kmem_cache *pgtable_cache[];
pgtable_cache[(shift) - 1]; \
})
-static inline pgd_t *pgd_alloc(struct mm_struct *mm)
-{
- return kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE), GFP_KERNEL);
-}
-
-static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
-{
- kmem_cache_free(PGT_CACHE(PGD_INDEX_SIZE), pgd);
-}
-
static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
{
pgd_set(pgd, (unsigned long)pud);
}
-static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
-{
- return kmem_cache_alloc(PGT_CACHE(PUD_INDEX_SIZE),
- GFP_KERNEL|__GFP_REPEAT);
-}
-
-static inline void pud_free(struct mm_struct *mm, pud_t *pud)
-{
- kmem_cache_free(PGT_CACHE(PUD_INDEX_SIZE), pud);
-}
-
static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
{
pud_set(pud, (unsigned long)pmd);
@@ -78,175 +62,8 @@ static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
pmd_set(pmd, (unsigned long)pte);
}
-/*
- * FIXME!!
- * Between 4K and 64K pages, we differ in what is stored in pmd. ie.
- * typedef pte_t *pgtable_t; -> 64K
- * typedef struct page *pgtable_t; -> 4k
- */
-#ifndef CONFIG_PPC_64K_PAGES
-
-static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
- pgtable_t pte_page)
-{
- pmd_set(pmd, (unsigned long)page_address(pte_page));
-}
-
-static inline pgtable_t pmd_pgtable(pmd_t pmd)
-{
- return pmd_page(pmd);
-}
-
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
- unsigned long address)
-{
- return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO);
-}
-
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
- unsigned long address)
-{
- struct page *page;
- pte_t *pte;
-
- pte = pte_alloc_one_kernel(mm, address);
- if (!pte)
- return NULL;
- page = virt_to_page(pte);
- if (!pgtable_page_ctor(page)) {
- __free_page(page);
- return NULL;
- }
- return page;
-}
-
-static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
-{
- free_page((unsigned long)pte);
-}
-
-static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage)
-{
- pgtable_page_dtor(ptepage);
- __free_page(ptepage);
-}
-
-static inline void pgtable_free(void *table, unsigned index_size)
-{
- if (!index_size)
- free_page((unsigned long)table);
- else {
- BUG_ON(index_size > MAX_PGTABLE_INDEX_SIZE);
- kmem_cache_free(PGT_CACHE(index_size), table);
- }
-}
-
-#ifdef CONFIG_SMP
-static inline void pgtable_free_tlb(struct mmu_gather *tlb,
- void *table, int shift)
-{
- unsigned long pgf = (unsigned long)table;
- BUG_ON(shift > MAX_PGTABLE_INDEX_SIZE);
- pgf |= shift;
- tlb_remove_table(tlb, (void *)pgf);
-}
-
-static inline void __tlb_remove_table(void *_table)
-{
- void *table = (void *)((unsigned long)_table & ~MAX_PGTABLE_INDEX_SIZE);
- unsigned shift = (unsigned long)_table & MAX_PGTABLE_INDEX_SIZE;
-
- pgtable_free(table, shift);
-}
-#else /* !CONFIG_SMP */
-static inline void pgtable_free_tlb(struct mmu_gather *tlb,
- void *table, int shift)
-{
- pgtable_free(table, shift);
-}
-#endif /* CONFIG_SMP */
-
-static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table,
- unsigned long address)
-{
- tlb_flush_pgtable(tlb, address);
- pgtable_page_dtor(table);
- pgtable_free_tlb(tlb, page_address(table), 0);
-}
-
-#else /* if CONFIG_PPC_64K_PAGES */
-
-extern pte_t *page_table_alloc(struct mm_struct *, unsigned long, int);
-extern void page_table_free(struct mm_struct *, unsigned long *, int);
-extern void pgtable_free_tlb(struct mmu_gather *tlb, void *table, int shift);
-#ifdef CONFIG_SMP
-extern void __tlb_remove_table(void *_table);
+#ifdef CONFIG_PPC_STD_MMU_64
+#include <asm/book3s/64/pgalloc-hash.h>
#endif
-static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
- pgtable_t pte_page)
-{
- pmd_set(pmd, (unsigned long)pte_page);
-}
-
-static inline pgtable_t pmd_pgtable(pmd_t pmd)
-{
- return (pgtable_t)pmd_page_vaddr(pmd);
-}
-
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
- unsigned long address)
-{
- return (pte_t *)page_table_alloc(mm, address, 1);
-}
-
-static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
- unsigned long address)
-{
- return (pgtable_t)page_table_alloc(mm, address, 0);
-}
-
-static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
-{
- page_table_free(mm, (unsigned long *)pte, 1);
-}
-
-static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage)
-{
- page_table_free(mm, (unsigned long *)ptepage, 0);
-}
-
-static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table,
- unsigned long address)
-{
- tlb_flush_pgtable(tlb, address);
- pgtable_free_tlb(tlb, table, 0);
-}
-#endif /* CONFIG_PPC_64K_PAGES */
-
-static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
-{
- return kmem_cache_alloc(PGT_CACHE(PMD_CACHE_INDEX),
- GFP_KERNEL|__GFP_REPEAT);
-}
-
-static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
-{
- kmem_cache_free(PGT_CACHE(PMD_CACHE_INDEX), pmd);
-}
-
-static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
- unsigned long address)
-{
- return pgtable_free_tlb(tlb, pmd, PMD_CACHE_INDEX);
-}
-
-static inline void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pud,
- unsigned long address)
-{
- pgtable_free_tlb(tlb, pud, PUD_INDEX_SIZE);
-}
-
-#define check_pgt_cache() do { } while (0)
-
-#endif /* _ASM_POWERPC_BOOK3S_64_PGALLOC_H */
+#endif /* __ASM_POWERPC_BOOK3S_64_PGALLOC_H */
--
2.5.0
next prev parent reply other threads:[~2016-01-12 7:17 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-12 7:15 [RFC PATCH V1 00/33] Book3s abstraction in preparation for new MMU model Aneesh Kumar K.V
2016-01-12 7:15 ` [RFC PATCH V1 01/33] powerpc/mm: add _PAGE_HASHPTE similar to 4K hash Aneesh Kumar K.V
2016-01-13 2:48 ` Balbir Singh
2016-01-13 6:02 ` Aneesh Kumar K.V
2016-01-12 7:15 ` [RFC PATCH V1 02/33] powerpc/mm: Split pgtable types to separate header Aneesh Kumar K.V
2016-01-12 7:15 ` [RFC PATCH V1 03/33] powerpc/mm: Switch book3s 64 with 64K page size to 4 level page table Aneesh Kumar K.V
2016-01-13 8:52 ` Balbir Singh
2016-01-15 0:25 ` Balbir Singh
2016-01-18 7:32 ` Aneesh Kumar K.V
2016-01-12 7:15 ` [RFC PATCH V1 04/33] powerpc/mm: Copy pgalloc (part 1) Aneesh Kumar K.V
2016-01-12 7:15 ` [RFC PATCH V1 05/33] powerpc/mm: Copy pgalloc (part 2) Aneesh Kumar K.V
2016-01-12 7:15 ` [RFC PATCH V1 06/33] powerpc/mm: Copy pgalloc (part 3) Aneesh Kumar K.V
2016-01-12 7:15 ` [RFC PATCH V1 07/33] mm: arch hook for vm_get_page_prot Aneesh Kumar K.V
2016-01-12 7:15 ` [RFC PATCH V1 08/33] mm: Some arch may want to use HPAGE_PMD related values as variables Aneesh Kumar K.V
2016-01-12 7:15 ` [RFC PATCH V1 09/33] powerpc/mm: Hugetlbfs is book3s_64 and fsl_book3e (32 or 64) Aneesh Kumar K.V
2016-01-12 7:15 ` [RFC PATCH V1 10/33] powerpc/mm: free_hugepd_range split to hash and nonhash Aneesh Kumar K.V
2016-01-12 7:15 ` [RFC PATCH V1 11/33] powerpc/mm: Use helper instead of opencoding Aneesh Kumar K.V
2016-01-12 7:15 ` Aneesh Kumar K.V [this message]
2016-01-12 7:15 ` [RFC PATCH V1 13/33] powerpc/mm: Move swap related definition ot hash64 header Aneesh Kumar K.V
2016-01-12 7:15 ` [RFC PATCH V1 14/33] powerpc/mm: Use helper for finding pte bits mapping I/O area Aneesh Kumar K.V
2016-01-12 7:42 ` Denis Kirjanov
2016-01-13 3:57 ` Benjamin Herrenschmidt
2016-01-13 6:07 ` Aneesh Kumar K.V
2016-01-13 7:18 ` Benjamin Herrenschmidt
2016-01-12 7:15 ` [RFC PATCH V1 15/33] powerpc/mm: Use helper for finding pte filter mask for gup Aneesh Kumar K.V
2016-01-13 8:13 ` Denis Kirjanov
2016-01-12 7:15 ` [RFC PATCH V1 16/33] powerpc/mm: Move hash page table related functions to pgtable-hash64.c Aneesh Kumar K.V
2016-01-12 7:15 ` [RFC PATCH V1 17/33] mm: Change pmd_huge_pte type in mm_struct Aneesh Kumar K.V
2016-01-12 7:15 ` [RFC PATCH V1 18/33] powerpc/mm: Add helper for update page flags during ioremap Aneesh Kumar K.V
2016-01-12 7:45 ` Denis Kirjanov
2016-01-12 7:15 ` [RFC PATCH V1 19/33] powerpc/mm: Rename hash specific page table bits (_PAGE* -> H_PAGE*) Aneesh Kumar K.V
2016-01-12 7:15 ` [RFC PATCH V1 20/33] powerpc/mm: Use flush_tlb_page in ptep_clear_flush_young Aneesh Kumar K.V
2016-01-12 7:15 ` [RFC PATCH V1 21/33] powerpc/mm: THP is only available on hash64 as of now Aneesh Kumar K.V
2016-01-12 7:15 ` [RFC PATCH V1 22/33] powerpc/mm: Use generic version of pmdp_clear_flush_young Aneesh Kumar K.V
2016-01-12 7:15 ` [RFC PATCH V1 23/33] powerpc/mm: Create a new headers for tlbflush for hash64 Aneesh Kumar K.V
2016-01-12 7:15 ` [RFC PATCH V1 24/33] powerpc/mm: Hash linux abstraction for page table accessors Aneesh Kumar K.V
2016-01-12 7:16 ` [RFC PATCH V1 25/33] powerpc/mm: Hash linux abstraction for functions in pgtable-hash.c Aneesh Kumar K.V
2016-01-12 7:16 ` [RFC PATCH V1 26/33] powerpc/mm: Hash linux abstraction for mmu context handling code Aneesh Kumar K.V
2016-01-12 7:16 ` [RFC PATCH V1 27/33] powerpc/mm: Move hash related mmu-*.h headers to book3s/ Aneesh Kumar K.V
2016-01-12 7:16 ` [RFC PATCH V1 28/33] powerpc/mm: Hash linux abstractions for early init routines Aneesh Kumar K.V
2016-01-12 7:16 ` [RFC PATCH V1 29/33] powerpc/mm: Hash linux abstraction for THP Aneesh Kumar K.V
2016-01-12 7:16 ` [RFC PATCH V1 30/33] powerpc/mm: Hash linux abstraction for HugeTLB Aneesh Kumar K.V
2016-01-12 7:16 ` [RFC PATCH V1 31/33] powerpc/mm: Hash linux abstraction for page table allocator Aneesh Kumar K.V
2016-01-12 7:16 ` [RFC PATCH V1 32/33] powerpc/mm: Hash linux abstraction for tlbflush routines Aneesh Kumar K.V
2016-01-12 7:16 ` [RFC PATCH V1 33/33] powerpc/mm: Hash linux abstraction for pte swap encoding Aneesh Kumar K.V
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