diff options
Diffstat (limited to 'arch/powerpc')
121 files changed, 351 insertions, 453 deletions
diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/include/asm/book3s/32/pgtable.h index 0d4bccb4b9f2..ab3995a6fc14 100644 --- a/arch/powerpc/include/asm/book3s/32/pgtable.h +++ b/arch/powerpc/include/asm/book3s/32/pgtable.h @@ -2,7 +2,6 @@ #ifndef _ASM_POWERPC_BOOK3S_32_PGTABLE_H #define _ASM_POWERPC_BOOK3S_32_PGTABLE_H -#define __ARCH_USE_5LEVEL_HACK #include <asm-generic/pgtable-nopmd.h> #include <asm/book3s/32/hash.h> @@ -113,6 +112,9 @@ static inline bool pte_user(pte_t pte) #define PMD_TABLE_SIZE 0 #define PUD_TABLE_SIZE 0 #define PGD_TABLE_SIZE (sizeof(pgd_t) << PGD_INDEX_SIZE) + +/* Bits to mask out from a PMD to get to the PTE page */ +#define PMD_MASKED_BITS (PTE_TABLE_SIZE - 1) #endif /* __ASSEMBLY__ */ #define PTRS_PER_PTE (1 << PTE_INDEX_SIZE) @@ -349,26 +351,9 @@ static inline void __ptep_set_access_flags(struct vm_area_struct *vma, #define __HAVE_ARCH_PTE_SAME #define pte_same(A,B) (((pte_val(A) ^ pte_val(B)) & ~_PAGE_HASHPTE) == 0) -#define pmd_page_vaddr(pmd) \ - ((unsigned long)__va(pmd_val(pmd) & ~(PTE_TABLE_SIZE - 1))) #define pmd_page(pmd) \ pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT) -/* to find an entry in a kernel page-table-directory */ -#define pgd_offset_k(address) pgd_offset(&init_mm, address) - -/* to find an entry in a page-table-directory */ -#define pgd_index(address) ((address) >> PGDIR_SHIFT) -#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address)) - -/* Find an entry in the third-level page table.. */ -#define pte_index(address) \ - (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) -#define pte_offset_kernel(dir, addr) \ - ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(addr)) -#define pte_offset_map(dir, addr) pte_offset_kernel((dir), (addr)) -static inline void pte_unmap(pte_t *pte) { } - /* * Encode and decode a swap entry. * Note that the bits we use in a PTE for representing a swap entry diff --git a/arch/powerpc/include/asm/book3s/64/hash.h b/arch/powerpc/include/asm/book3s/64/hash.h index 6fc4520092c7..73ad038ed10b 100644 --- a/arch/powerpc/include/asm/book3s/64/hash.h +++ b/arch/powerpc/include/asm/book3s/64/hash.h @@ -134,9 +134,9 @@ static inline int get_region_id(unsigned long ea) #define hash__pmd_bad(pmd) (pmd_val(pmd) & H_PMD_BAD_BITS) #define hash__pud_bad(pud) (pud_val(pud) & H_PUD_BAD_BITS) -static inline int hash__pgd_bad(pgd_t pgd) +static inline int hash__p4d_bad(p4d_t p4d) { - return (pgd_val(pgd) == 0); + return (p4d_val(p4d) == 0); } #ifdef CONFIG_STRICT_KERNEL_RWX extern void hash__mark_rodata_ro(void); diff --git a/arch/powerpc/include/asm/book3s/64/pgalloc.h b/arch/powerpc/include/asm/book3s/64/pgalloc.h index a41e91bd0580..69c5b051734f 100644 --- a/arch/powerpc/include/asm/book3s/64/pgalloc.h +++ b/arch/powerpc/include/asm/book3s/64/pgalloc.h @@ -85,9 +85,9 @@ 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) +static inline void p4d_populate(struct mm_struct *mm, p4d_t *pgd, pud_t *pud) { - *pgd = __pgd(__pgtable_ptr_val(pud) | PGD_VAL_BITS); + *pgd = __p4d(__pgtable_ptr_val(pud) | PGD_VAL_BITS); } static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h index 83b605806d9c..27a884624304 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h @@ -2,7 +2,7 @@ #ifndef _ASM_POWERPC_BOOK3S_64_PGTABLE_H_ #define _ASM_POWERPC_BOOK3S_64_PGTABLE_H_ -#include <asm-generic/5level-fixup.h> +#include <asm-generic/pgtable-nop4d.h> #ifndef __ASSEMBLY__ #include <linux/mmdebug.h> @@ -251,7 +251,7 @@ extern unsigned long __pmd_frag_size_shift; /* Bits to mask out from a PUD to get to the PMD page */ #define PUD_MASKED_BITS 0xc0000000000000ffUL /* Bits to mask out from a PGD to get to the PUD page */ -#define PGD_MASKED_BITS 0xc0000000000000ffUL +#define P4D_MASKED_BITS 0xc0000000000000ffUL /* * Used as an indicator for rcu callback functions @@ -954,81 +954,59 @@ static inline bool pud_access_permitted(pud_t pud, bool write) return pte_access_permitted(pud_pte(pud), write); } -#define pgd_write(pgd) pte_write(pgd_pte(pgd)) +#define __p4d_raw(x) ((p4d_t) { __pgd_raw(x) }) +static inline __be64 p4d_raw(p4d_t x) +{ + return pgd_raw(x.pgd); +} + +#define p4d_write(p4d) pte_write(p4d_pte(p4d)) -static inline void pgd_clear(pgd_t *pgdp) +static inline void p4d_clear(p4d_t *p4dp) { - *pgdp = __pgd(0); + *p4dp = __p4d(0); } -static inline int pgd_none(pgd_t pgd) +static inline int p4d_none(p4d_t p4d) { - return !pgd_raw(pgd); + return !p4d_raw(p4d); } -static inline int pgd_present(pgd_t pgd) +static inline int p4d_present(p4d_t p4d) { - return !!(pgd_raw(pgd) & cpu_to_be64(_PAGE_PRESENT)); + return !!(p4d_raw(p4d) & cpu_to_be64(_PAGE_PRESENT)); } -static inline pte_t pgd_pte(pgd_t pgd) +static inline pte_t p4d_pte(p4d_t p4d) { - return __pte_raw(pgd_raw(pgd)); + return __pte_raw(p4d_raw(p4d)); } -static inline pgd_t pte_pgd(pte_t pte) +static inline p4d_t pte_p4d(pte_t pte) { - return __pgd_raw(pte_raw(pte)); + return __p4d_raw(pte_raw(pte)); } -static inline int pgd_bad(pgd_t pgd) +static inline int p4d_bad(p4d_t p4d) { if (radix_enabled()) - return radix__pgd_bad(pgd); - return hash__pgd_bad(pgd); + return radix__p4d_bad(p4d); + return hash__p4d_bad(p4d); } -#define pgd_access_permitted pgd_access_permitted -static inline bool pgd_access_permitted(pgd_t pgd, bool write) +#define p4d_access_permitted p4d_access_permitted +static inline bool p4d_access_permitted(p4d_t p4d, bool write) { - return pte_access_permitted(pgd_pte(pgd), write); + return pte_access_permitted(p4d_pte(p4d), write); } -extern struct page *pgd_page(pgd_t pgd); +extern struct page *p4d_page(p4d_t p4d); /* Pointers in the page table tree are physical addresses */ #define __pgtable_ptr_val(ptr) __pa(ptr) -#define pmd_page_vaddr(pmd) __va(pmd_val(pmd) & ~PMD_MASKED_BITS) #define pud_page_vaddr(pud) __va(pud_val(pud) & ~PUD_MASKED_BITS) -#define pgd_page_vaddr(pgd) __va(pgd_val(pgd) & ~PGD_MASKED_BITS) - -#define pgd_index(address) (((address) >> (PGDIR_SHIFT)) & (PTRS_PER_PGD - 1)) -#define pud_index(address) (((address) >> (PUD_SHIFT)) & (PTRS_PER_PUD - 1)) -#define pmd_index(address) (((address) >> (PMD_SHIFT)) & (PTRS_PER_PMD - 1)) -#define pte_index(address) (((address) >> (PAGE_SHIFT)) & (PTRS_PER_PTE - 1)) - -/* - * Find an entry in a page-table-directory. We combine the address region - * (the high order N bits) and the pgd portion of the address. - */ - -#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address)) - -#define pud_offset(pgdp, addr) \ - (((pud_t *) pgd_page_vaddr(*(pgdp))) + pud_index(addr)) -#define pmd_offset(pudp,addr) \ - (((pmd_t *) pud_page_vaddr(*(pudp))) + pmd_index(addr)) -#define pte_offset_kernel(dir,addr) \ - (((pte_t *) pmd_page_vaddr(*(dir))) + pte_index(addr)) - -#define pte_offset_map(dir,addr) pte_offset_kernel((dir), (addr)) - -static inline void pte_unmap(pte_t *pte) { } - -/* to find an entry in a kernel page-table-directory */ -/* This now only contains the vmalloc pages */ -#define pgd_offset_k(address) pgd_offset(&init_mm, address) +#define p4d_page_vaddr(p4d) __va(p4d_val(p4d) & ~P4D_MASKED_BITS) #define pte_ERROR(e) \ pr_err("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e)) @@ -1376,11 +1354,11 @@ static inline bool pud_is_leaf(pud_t pud) return !!(pud_raw(pud) & cpu_to_be64(_PAGE_PTE)); } -#define pgd_is_leaf pgd_is_leaf -#define pgd_leaf pgd_is_leaf -static inline bool pgd_is_leaf(pgd_t pgd) +#define p4d_is_leaf p4d_is_leaf +#define p4d_leaf p4d_is_leaf +static inline bool p4d_is_leaf(p4d_t p4d) { - return !!(pgd_raw(pgd) & cpu_to_be64(_PAGE_PTE)); + return !!(p4d_raw(p4d) & cpu_to_be64(_PAGE_PTE)); } #endif /* __ASSEMBLY__ */ diff --git a/arch/powerpc/include/asm/book3s/64/radix.h b/arch/powerpc/include/asm/book3s/64/radix.h index 08c222d5b764..0cba794c4fb8 100644 --- a/arch/powerpc/include/asm/book3s/64/radix.h +++ b/arch/powerpc/include/asm/book3s/64/radix.h @@ -30,7 +30,7 @@ /* Don't have anything in the reserved bits and leaf bits */ #define RADIX_PMD_BAD_BITS 0x60000000000000e0UL #define RADIX_PUD_BAD_BITS 0x60000000000000e0UL -#define RADIX_PGD_BAD_BITS 0x60000000000000e0UL +#define RADIX_P4D_BAD_BITS 0x60000000000000e0UL #define RADIX_PMD_SHIFT (PAGE_SHIFT + RADIX_PTE_INDEX_SIZE) #define RADIX_PUD_SHIFT (RADIX_PMD_SHIFT + RADIX_PMD_INDEX_SIZE) @@ -227,9 +227,9 @@ static inline int radix__pud_bad(pud_t pud) } -static inline int radix__pgd_bad(pgd_t pgd) +static inline int radix__p4d_bad(p4d_t p4d) { - return !!(pgd_val(pgd) & RADIX_PGD_BAD_BITS); + return !!(p4d_val(p4d) & RADIX_P4D_BAD_BITS); } #ifdef CONFIG_TRANSPARENT_HUGEPAGE diff --git a/arch/powerpc/include/asm/cacheflush.h b/arch/powerpc/include/asm/cacheflush.h index e92191b390f3..de600b915a3c 100644 --- a/arch/powerpc/include/asm/cacheflush.h +++ b/arch/powerpc/include/asm/cacheflush.h @@ -4,23 +4,9 @@ #ifndef _ASM_POWERPC_CACHEFLUSH_H #define _ASM_POWERPC_CACHEFLUSH_H -#ifdef __KERNEL__ - #include <linux/mm.h> #include <asm/cputable.h> -/* - * No cache flushing is required when address mappings are changed, - * because the caches on PowerPCs are physically addressed. - */ -#define flush_cache_all() do { } while (0) -#define flush_cache_mm(mm) do { } while (0) -#define flush_cache_dup_mm(mm) do { } while (0) -#define flush_cache_range(vma, start, end) do { } while (0) -#define flush_cache_page(vma, vmaddr, pfn) do { } while (0) -#define flush_icache_page(vma, page) do { } while (0) -#define flush_cache_vunmap(start, end) do { } while (0) - #ifdef CONFIG_PPC_BOOK3S_64 /* * Book3s has no ptesync after setting a pte, so without this ptesync it's @@ -33,20 +19,20 @@ static inline void flush_cache_vmap(unsigned long start, unsigned long end) { asm volatile("ptesync" ::: "memory"); } -#else -static inline void flush_cache_vmap(unsigned long start, unsigned long end) { } -#endif +#define flush_cache_vmap flush_cache_vmap +#endif /* CONFIG_PPC_BOOK3S_64 */ #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 extern void flush_dcache_page(struct page *page); -#define flush_dcache_mmap_lock(mapping) do { } while (0) -#define flush_dcache_mmap_unlock(mapping) do { } while (0) void flush_icache_range(unsigned long start, unsigned long stop); -extern void flush_icache_user_range(struct vm_area_struct *vma, - struct page *page, unsigned long addr, - int len); -extern void flush_dcache_icache_page(struct page *page); +#define flush_icache_range flush_icache_range + +void flush_icache_user_page(struct vm_area_struct *vma, struct page *page, + unsigned long addr, int len); +#define flush_icache_user_page flush_icache_user_page + +void flush_dcache_icache_page(struct page *page); void __flush_dcache_icache(void *page); /** @@ -111,14 +97,6 @@ static inline void invalidate_dcache_range(unsigned long start, mb(); /* sync */ } -#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ - do { \ - memcpy(dst, src, len); \ - flush_icache_user_range(vma, page, vaddr, len); \ - } while (0) -#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ - memcpy(dst, src, len) - -#endif /* __KERNEL__ */ +#include <asm-generic/cacheflush.h> #endif /* _ASM_POWERPC_CACHEFLUSH_H */ diff --git a/arch/powerpc/include/asm/fixmap.h b/arch/powerpc/include/asm/fixmap.h index 2ef155a3c821..e8063f37c7cd 100644 --- a/arch/powerpc/include/asm/fixmap.h +++ b/arch/powerpc/include/asm/fixmap.h @@ -16,8 +16,8 @@ #ifndef __ASSEMBLY__ #include <linux/sizes.h> +#include <linux/pgtable.h> #include <asm/page.h> -#include <asm/pgtable.h> #ifdef CONFIG_HIGHMEM #include <linux/threads.h> #include <asm/kmap_types.h> diff --git a/arch/powerpc/include/asm/io.h b/arch/powerpc/include/asm/io.h index 13f90dd03450..58635960403c 100644 --- a/arch/powerpc/include/asm/io.h +++ b/arch/powerpc/include/asm/io.h @@ -34,7 +34,6 @@ extern struct pci_dev *isa_bridge_pcidev; #include <asm/mmiowb.h> #include <asm/mmu.h> #include <asm/ppc_asm.h> -#include <asm/pgtable.h> #define SIO_CONFIG_RA 0x398 #define SIO_CONFIG_RD 0x399 diff --git a/arch/powerpc/include/asm/kup.h b/arch/powerpc/include/asm/kup.h index 92bcd1a26d73..ee03d1c63a82 100644 --- a/arch/powerpc/include/asm/kup.h +++ b/arch/powerpc/include/asm/kup.h @@ -37,7 +37,7 @@ #else /* !__ASSEMBLY__ */ -#include <asm/pgtable.h> +#include <linux/pgtable.h> void setup_kup(void); diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/include/asm/nohash/32/pgtable.h index 4315d40906a0..04f8ae361991 100644 --- a/arch/powerpc/include/asm/nohash/32/pgtable.h +++ b/arch/powerpc/include/asm/nohash/32/pgtable.h @@ -2,7 +2,6 @@ #ifndef _ASM_POWERPC_NOHASH_32_PGTABLE_H #define _ASM_POWERPC_NOHASH_32_PGTABLE_H -#define __ARCH_USE_5LEVEL_HACK #include <asm-generic/pgtable-nopmd.h> #ifndef __ASSEMBLY__ @@ -30,6 +29,8 @@ extern int icache_44x_need_flush; #define PMD_TABLE_SIZE 0 #define PUD_TABLE_SIZE 0 #define PGD_TABLE_SIZE (sizeof(pgd_t) << PGD_INDEX_SIZE) + +#define PMD_MASKED_BITS (PTE_TABLE_SIZE - 1) #endif /* __ASSEMBLY__ */ #define PTRS_PER_PTE (1 << PTE_INDEX_SIZE) @@ -348,8 +349,6 @@ static inline int pte_young(pte_t pte) * of the pte page. -- paulus */ #ifndef CONFIG_BOOKE -#define pmd_page_vaddr(pmd) \ - ((unsigned long)__va(pmd_val(pmd) & ~(PTE_TABLE_SIZE - 1))) #define pmd_page(pmd) \ pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT) #else @@ -359,22 +358,6 @@ static inline int pte_young(pte_t pte) pfn_to_page((__pa(pmd_val(pmd)) >> PAGE_SHIFT)) #endif -/* to find an entry in a kernel page-table-directory */ -#define pgd_offset_k(address) pgd_offset(&init_mm, address) - -/* to find an entry in a page-table-directory */ -#define pgd_index(address) ((address) >> PGDIR_SHIFT) -#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address)) - -/* Find an entry in the third-level page table.. */ -#define pte_index(address) \ - (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) -#define pte_offset_kernel(dir, addr) \ - (pmd_bad(*(dir)) ? NULL : (pte_t *)pmd_page_vaddr(*(dir)) + \ - pte_index(addr)) -#define pte_offset_map(dir, addr) pte_offset_kernel((dir), (addr)) -static inline void pte_unmap(pte_t *pte) { } - /* * Encode and decode a swap entry. * Note that the bits we use in a PTE for representing a swap entry diff --git a/arch/powerpc/include/asm/nohash/64/pgalloc.h b/arch/powerpc/include/asm/nohash/64/pgalloc.h index b9534a793293..668aee6017e7 100644 --- a/arch/powerpc/include/asm/nohash/64/pgalloc.h +++ b/arch/powerpc/include/asm/nohash/64/pgalloc.h @@ -15,7 +15,7 @@ struct vmemmap_backing { }; extern struct vmemmap_backing *vmemmap_list; -#define pgd_populate(MM, PGD, PUD) pgd_set(PGD, (unsigned long)PUD) +#define p4d_populate(MM, P4D, PUD) p4d_set(P4D, (unsigned long)PUD) static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) { diff --git a/arch/powerpc/include/asm/nohash/64/pgtable-4k.h b/arch/powerpc/include/asm/nohash/64/pgtable-4k.h index c40ec32b8194..fe2f4c9acd9e 100644 --- a/arch/powerpc/include/asm/nohash/64/pgtable-4k.h +++ b/arch/powerpc/include/asm/nohash/64/pgtable-4k.h @@ -2,7 +2,7 @@ #ifndef _ASM_POWERPC_NOHASH_64_PGTABLE_4K_H #define _ASM_POWERPC_NOHASH_64_PGTABLE_4K_H -#include <asm-generic/5level-fixup.h> +#include <asm-generic/pgtable-nop4d.h> /* * Entries per page directory level. The PTE level must use a 64b record @@ -45,43 +45,39 @@ #define PMD_MASKED_BITS 0 /* Bits to mask out from a PUD to get to the PMD page */ #define PUD_MASKED_BITS 0 -/* Bits to mask out from a PGD to get to the PUD page */ -#define PGD_MASKED_BITS 0 +/* Bits to mask out from a P4D to get to the PUD page */ +#define P4D_MASKED_BITS 0 /* * 4-level page tables related bits */ -#define pgd_none(pgd) (!pgd_val(pgd)) -#define pgd_bad(pgd) (pgd_val(pgd) == 0) -#define pgd_present(pgd) (pgd_val(pgd) != 0) -#define pgd_page_vaddr(pgd) (pgd_val(pgd) & ~PGD_MASKED_BITS) +#define p4d_none(p4d) (!p4d_val(p4d)) +#define p4d_bad(p4d) (p4d_val(p4d) == 0) +#define p4d_present(p4d) (p4d_val(p4d) != 0) +#define p4d_page_vaddr(p4d) (p4d_val(p4d) & ~P4D_MASKED_BITS) #ifndef __ASSEMBLY__ -static inline void pgd_clear(pgd_t *pgdp) +static inline void p4d_clear(p4d_t *p4dp) { - *pgdp = __pgd(0); + *p4dp = __p4d(0); } -static inline pte_t pgd_pte(pgd_t pgd) +static inline pte_t p4d_pte(p4d_t p4d) { - return __pte(pgd_val(pgd)); + return __pte(p4d_val(p4d)); } -static inline pgd_t pte_pgd(pte_t pte) +static inline p4d_t pte_p4d(pte_t pte) { - return __pgd(pte_val(pte)); + return __p4d(pte_val(pte)); } -extern struct page *pgd_page(pgd_t pgd); +extern struct page *p4d_page(p4d_t p4d); #endif /* !__ASSEMBLY__ */ -#define pud_offset(pgdp, addr) \ - (((pud_t *) pgd_page_vaddr(*(pgdp))) + \ - (((addr) >> PUD_SHIFT) & (PTRS_PER_PUD - 1))) - #define pud_ERROR(e) \ pr_err("%s:%d: bad pud %08lx.\n", __FILE__, __LINE__, pud_val(e)) diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h b/arch/powerpc/include/asm/nohash/64/pgtable.h index 9a33b8bd842d..9dd9df567efb 100644 --- a/arch/powerpc/include/asm/nohash/64/pgtable.h +++ b/arch/powerpc/include/asm/nohash/64/pgtable.h @@ -175,35 +175,13 @@ static inline pud_t pte_pud(pte_t pte) return __pud(pte_val(pte)); } #define pud_write(pud) pte_write(pud_pte(pud)) -#define pgd_write(pgd) pte_write(pgd_pte(pgd)) +#define p4d_write(pgd) pte_write(p4d_pte(p4d)) -static inline void pgd_set(pgd_t *pgdp, unsigned long val) +static inline void p4d_set(p4d_t *p4dp, unsigned long val) { - *pgdp = __pgd(val); + *p4dp = __p4d(val); } -/* - * Find an entry in a page-table-directory. We combine the address region - * (the high order N bits) and the pgd portion of the address. - */ -#define pgd_index(address) (((address) >> (PGDIR_SHIFT)) & (PTRS_PER_PGD - 1)) - -#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address)) - -#define pmd_offset(pudp,addr) \ - (((pmd_t *) pud_page_vaddr(*(pudp))) + (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1))) - -#define pte_offset_kernel(dir,addr) \ - (((pte_t *) pmd_page_vaddr(*(dir))) + (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))) - -#define pte_offset_map(dir,addr) pte_offset_kernel((dir), (addr)) - -static inline void pte_unmap(pte_t *pte) { } - -/* to find an entry in a kernel page-table-directory */ -/* This now only contains the vmalloc pages */ -#define pgd_offset_k(address) pgd_offset(&init_mm, address) - /* Atomic PTE updates */ static inline unsigned long pte_update(struct mm_struct *mm, unsigned long addr, diff --git a/arch/powerpc/include/asm/nohash/pgtable.h b/arch/powerpc/include/asm/nohash/pgtable.h index 7fed9dc0f147..09adb1db357f 100644 --- a/arch/powerpc/include/asm/nohash/pgtable.h +++ b/arch/powerpc/include/asm/nohash/pgtable.h @@ -56,7 +56,7 @@ static inline bool pte_exec(pte_t pte) { return pte_val(pte) & _PAGE_EXEC; } #ifdef CONFIG_NUMA_BALANCING /* * These work without NUMA balancing but the kernel does not care. See the - * comment in include/asm-generic/pgtable.h . On powerpc, this will only + * comment in include/linux/pgtable.h . On powerpc, this will only * work for user pages and always return true for kernel pages. */ static inline int pte_protnone(pte_t pte) diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h index b1f1d5339735..1d58ac143cb4 100644 --- a/arch/powerpc/include/asm/pgtable.h +++ b/arch/powerpc/include/asm/pgtable.h @@ -41,25 +41,6 @@ struct mm_struct; #ifndef __ASSEMBLY__ -#ifdef CONFIG_PPC32 -static inline pmd_t *pmd_ptr(struct mm_struct *mm, unsigned long va) -{ - return pmd_offset(pud_offset(pgd_offset(mm, va), va), va); -} - -static inline pmd_t *pmd_ptr_k(unsigned long va) -{ - return pmd_offset(pud_offset(pgd_offset_k(va), va), va); -} - -static inline pte_t *virt_to_kpte(unsigned long vaddr) -{ - pmd_t *pmd = pmd_ptr_k(vaddr); - - return pmd_none(*pmd) ? NULL : pte_offset_kernel(pmd, vaddr); -} -#endif - #include <asm/tlbflush.h> /* Keep these as a macros to avoid include dependency mess */ @@ -76,6 +57,13 @@ static inline pgprot_t pte_pgprot(pte_t pte) return __pgprot(pte_flags); } +#ifndef pmd_page_vaddr +static inline unsigned long pmd_page_vaddr(pmd_t pmd) +{ + return ((unsigned long)__va(pmd_val(pmd) & ~PMD_MASKED_BITS)); +} +#define pmd_page_vaddr pmd_page_vaddr +#endif /* * ZERO_PAGE is a global shared page that is always zero: used * for zero-mapped memory areas etc.. @@ -96,8 +84,6 @@ extern unsigned long ioremap_bot; */ #define kern_addr_valid(addr) (1) -#include <asm-generic/pgtable.h> - #ifndef CONFIG_TRANSPARENT_HUGEPAGE #define pmd_large(pmd) 0 #endif @@ -158,9 +144,9 @@ static inline bool pud_is_leaf(pud_t pud) } #endif -#ifndef pgd_is_leaf -#define pgd_is_leaf pgd_is_leaf -static inline bool pgd_is_leaf(pgd_t pgd) +#ifndef p4d_is_leaf +#define p4d_is_leaf p4d_is_leaf +static inline bool p4d_is_leaf(p4d_t p4d) { return false; } diff --git a/arch/powerpc/include/asm/pkeys.h b/arch/powerpc/include/asm/pkeys.h index 20ebf153c871..2fe6cae14d10 100644 --- a/arch/powerpc/include/asm/pkeys.h +++ b/arch/powerpc/include/asm/pkeys.h @@ -101,7 +101,7 @@ static inline bool mm_pkey_is_allocated(struct mm_struct *mm, int pkey) /* * Returns a positive, 5-bit key on success, or -1 on failure. - * Relies on the mmap_sem to protect against concurrency in mm_pkey_alloc() and + * Relies on the mmap_lock to protect against concurrency in mm_pkey_alloc() and * mm_pkey_free(). */ static inline int mm_pkey_alloc(struct mm_struct *mm) diff --git a/arch/powerpc/include/asm/tlb.h b/arch/powerpc/include/asm/tlb.h index 7f3a8b902325..862985cf5180 100644 --- a/arch/powerpc/include/asm/tlb.h +++ b/arch/powerpc/include/asm/tlb.h @@ -10,7 +10,7 @@ #ifdef __KERNEL__ #ifndef __powerpc64__ -#include <asm/pgtable.h> +#include <linux/pgtable.h> #endif #include <asm/pgalloc.h> #ifndef __powerpc64__ diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index 9b9cde07e396..6657dc6b2336 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -30,7 +30,6 @@ #include <asm/io.h> #include <asm/page.h> -#include <asm/pgtable.h> #include <asm/processor.h> #include <asm/cputable.h> #include <asm/thread_info.h> diff --git a/arch/powerpc/kernel/btext.c b/arch/powerpc/kernel/btext.c index f57712a55815..02300edc6989 100644 --- a/arch/powerpc/kernel/btext.c +++ b/arch/powerpc/kernel/btext.c @@ -9,13 +9,13 @@ #include <linux/init.h> #include <linux/export.h> #include <linux/memblock.h> +#include <linux/pgtable.h> #include <asm/sections.h> #include <asm/prom.h> #include <asm/btext.h> #include <asm/page.h> #include <asm/mmu.h> -#include <asm/pgtable.h> #include <asm/io.h> #include <asm/processor.h> #include <asm/udbg.h> diff --git a/arch/powerpc/kernel/fpu.S b/arch/powerpc/kernel/fpu.S index 3235a8da6af7..8a43ae3023fe 100644 --- a/arch/powerpc/kernel/fpu.S +++ b/arch/powerpc/kernel/fpu.S @@ -12,7 +12,6 @@ #include <asm/reg.h> #include <asm/page.h> #include <asm/mmu.h> -#include <asm/pgtable.h> #include <asm/cputable.h> #include <asm/cache.h> #include <asm/thread_info.h> diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S index 97c887950c3c..c012c2749a34 100644 --- a/arch/powerpc/kernel/head_32.S +++ b/arch/powerpc/kernel/head_32.S @@ -17,10 +17,10 @@ */ #include <linux/init.h> +#include <linux/pgtable.h> #include <asm/reg.h> #include <asm/page.h> #include <asm/mmu.h> -#include <asm/pgtable.h> #include <asm/cputable.h> #include <asm/cache.h> #include <asm/thread_info.h> diff --git a/arch/powerpc/kernel/head_40x.S b/arch/powerpc/kernel/head_40x.S index 2cec543c38f0..24c5642e078f 100644 --- a/arch/powerpc/kernel/head_40x.S +++ b/arch/powerpc/kernel/head_40x.S @@ -26,10 +26,10 @@ */ #include <linux/init.h> +#include <linux/pgtable.h> #include <asm/processor.h> #include <asm/page.h> #include <asm/mmu.h> -#include <asm/pgtable.h> #include <asm/cputable.h> #include <asm/thread_info.h> #include <asm/ppc_asm.h> diff --git a/arch/powerpc/kernel/head_44x.S b/arch/powerpc/kernel/head_44x.S index 51dd01a27314..8e36718f3167 100644 --- a/arch/powerpc/kernel/head_44x.S +++ b/arch/powerpc/kernel/head_44x.S @@ -25,10 +25,10 @@ */ #include <linux/init.h> +#include <linux/pgtable.h> #include <asm/processor.h> #include <asm/page.h> #include <asm/mmu.h> -#include <asm/pgtable.h> #include <asm/cputable.h> #include <asm/thread_info.h> #include <asm/ppc_asm.h> diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S index 073a651787df..39fc4eadf2c5 100644 --- a/arch/powerpc/kernel/head_8xx.S +++ b/arch/powerpc/kernel/head_8xx.S @@ -16,11 +16,11 @@ #include <linux/init.h> #include <linux/magic.h> +#include <linux/pgtable.h> #include <asm/processor.h> #include <asm/page.h> #include <asm/mmu.h> #include <asm/cache.h> -#include <asm/pgtable.h> #include <asm/cputable.h> #include <asm/thread_info.h> #include <asm/ppc_asm.h> diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S index 840af004041e..586a6ac501e9 100644 --- a/arch/powerpc/kernel/head_fsl_booke.S +++ b/arch/powerpc/kernel/head_fsl_booke.S @@ -28,10 +28,10 @@ #include <linux/init.h> #include <linux/threads.h> +#include <linux/pgtable.h> #include <asm/processor.h> #include <asm/page.h> #include <asm/mmu.h> -#include <asm/pgtable.h> #include <asm/cputable.h> #include <asm/thread_info.h> #include <asm/ppc_asm.h> diff --git a/arch/powerpc/kernel/io-workarounds.c b/arch/powerpc/kernel/io-workarounds.c index 0276bc8c8969..51bbaae94ccc 100644 --- a/arch/powerpc/kernel/io-workarounds.c +++ b/arch/powerpc/kernel/io-workarounds.c @@ -10,10 +10,10 @@ #include <linux/kernel.h> #include <linux/sched/mm.h> /* for init_mm */ +#include <linux/pgtable.h> #include <asm/io.h> #include <asm/machdep.h> -#include <asm/pgtable.h> #include <asm/ppc-pci.h> #include <asm/io-workarounds.h> #include <asm/pte-walk.h> diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 112d150354b2..05b1cc0e009e 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -51,10 +51,10 @@ #include <linux/of.h> #include <linux/of_irq.h> #include <linux/vmalloc.h> +#include <linux/pgtable.h> #include <linux/uaccess.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/irq.h> #include <asm/cache.h> #include <asm/prom.h> diff --git a/arch/powerpc/kernel/mce_power.c b/arch/powerpc/kernel/mce_power.c index c32af49a5138..c3b522bff9b4 100644 --- a/arch/powerpc/kernel/mce_power.c +++ b/arch/powerpc/kernel/mce_power.c @@ -12,10 +12,10 @@ #include <linux/types.h> #include <linux/ptrace.h> #include <linux/extable.h> +#include <linux/pgtable.h> #include <asm/mmu.h> #include <asm/mce.h> #include <asm/machdep.h> -#include <asm/pgtable.h> #include <asm/pte-walk.h> #include <asm/sstep.h> #include <asm/exception-64s.h> diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c index 3f91ccaa9c74..12e81832280d 100644 --- a/arch/powerpc/kernel/paca.c +++ b/arch/powerpc/kernel/paca.c @@ -8,11 +8,11 @@ #include <linux/memblock.h> #include <linux/sched/task.h> #include <linux/numa.h> +#include <linux/pgtable.h> #include <asm/lppaca.h> #include <asm/paca.h> #include <asm/sections.h> -#include <asm/pgtable.h> #include <asm/kexec.h> #include <asm/svm.h> #include <asm/ultravisor.h> diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 048d64c4e115..7bb7faf84490 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -41,7 +41,6 @@ #include <linux/pkeys.h> #include <linux/seq_buf.h> -#include <asm/pgtable.h> #include <asm/io.h> #include <asm/processor.h> #include <asm/mmu.h> @@ -1456,7 +1455,7 @@ void show_regs(struct pt_regs * regs) printk("NIP ["REG"] %pS\n", regs->nip, (void *)regs->nip); printk("LR ["REG"] %pS\n", regs->link, (void *)regs->link); #endif - show_stack(current, (unsigned long *) regs->gpr[1]); + show_stack(current, (unsigned long *) regs->gpr[1], KERN_DEFAULT); if (!user_mode(regs)) show_instructions(regs); } @@ -2063,7 +2062,8 @@ unsigned long get_wchan(struct task_struct *p) static int kstack_depth_to_print = CONFIG_PRINT_STACK_DEPTH; -void show_stack(struct task_struct *tsk, unsigned long *stack) +void show_stack(struct task_struct *tsk, unsigned long *stack, + const char *loglvl) { unsigned long sp, ip, lr, newsp; int count = 0; @@ -2088,7 +2088,7 @@ void show_stack(struct task_struct *tsk, unsigned long *stack) } lr = 0; - printk("Call Trace:\n"); + printk("%sCall Trace:\n", loglvl); do { if (!validate_sp(sp, tsk, STACK_FRAME_OVERHEAD)) break; @@ -2097,7 +2097,8 @@ void show_stack(struct task_struct *tsk, unsigned long *stack) newsp = stack[0]; ip = stack[STACK_FRAME_LR_SAVE]; if (!firstframe || ip != lr) { - printk("["REG"] ["REG"] %pS", sp, ip, (void *)ip); + printk("%s["REG"] ["REG"] %pS", + loglvl, sp, ip, (void *)ip); #ifdef CONFIG_FUNCTION_GRAPH_TRACER ret_addr = ftrace_graph_ret_addr(current, &ftrace_idx, ip, stack); @@ -2119,8 +2120,9 @@ void show_stack(struct task_struct *tsk, unsigned long *stack) struct pt_regs *regs = (struct pt_regs *) (sp + STACK_FRAME_OVERHEAD); lr = regs->link; - printk("--- interrupt: %lx at %pS\n LR = %pS\n", - regs->trap, (void *)regs->nip, (void *)lr); + printk("%s--- interrupt: %lx at %pS\n LR = %pS\n", + loglvl, regs->trap, + (void *)regs->nip, (void *)lr); firstframe = 1; } diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index 1dcf0e214a22..5cf1362adbab 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -30,6 +30,7 @@ #include <linux/of_fdt.h> #include <linux/libfdt.h> #include <linux/cpu.h> +#include <linux/pgtable.h> #include <asm/prom.h> #include <asm/rtas.h> @@ -41,7 +42,6 @@ #include <asm/smp.h> #include <asm/mmu.h> #include <asm/paca.h> -#include <asm/pgtable.h> #include <asm/powernv.h> #include <asm/iommu.h> #include <asm/btext.h> diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index e3a9fde51c4f..c40a5bba1ee9 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -26,6 +26,7 @@ #include <linux/delay.h> #include <linux/initrd.h> #include <linux/bitops.h> +#include <linux/pgtable.h> #include <asm/prom.h> #include <asm/rtas.h> #include <asm/page.h> @@ -34,7 +35,6 @@ #include <asm/io.h> #include <asm/smp.h> #include <asm/mmu.h> -#include <asm/pgtable.h> #include <asm/iommu.h> #include <asm/btext.h> #include <asm/sections.h> diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c index ae5e43eaca48..781c1869902e 100644 --- a/arch/powerpc/kernel/rtas_pci.c +++ b/arch/powerpc/kernel/rtas_pci.c @@ -13,9 +13,9 @@ #include <linux/pci.h> #include <linux/string.h> #include <linux/init.h> +#include <linux/pgtable.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/irq.h> #include <asm/prom.h> #include <asm/machdep.h> diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index f9c0d888ce8a..8e8fb43855d7 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -31,13 +31,13 @@ #include <linux/memblock.h> #include <linux/of_platform.h> #include <linux/hugetlb.h> +#include <linux/pgtable.h> #include <asm/debugfs.h> #include <asm/io.h> #include <asm/paca.h> #include <asm/prom.h> #include <asm/processor.h> #include <asm/vdso_datapage.h> -#include <asm/pgtable.h> #include <asm/smp.h> #include <asm/elf.h> #include <asm/machdep.h> diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c index 15f0a7c84944..5d7268071ba1 100644 --- a/arch/powerpc/kernel/setup_32.c +++ b/arch/powerpc/kernel/setup_32.c @@ -19,11 +19,11 @@ #include <linux/memblock.h> #include <linux/export.h> #include <linux/nvram.h> +#include <linux/pgtable.h> #include <asm/io.h> #include <asm/prom.h> #include <asm/processor.h> -#include <asm/pgtable.h> #include <asm/setup.h> #include <asm/smp.h> #include <asm/elf.h> diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index bb47555d48a2..0ba1ed77dc68 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -30,13 +30,13 @@ #include <linux/lockdep.h> #include <linux/memory.h> #include <linux/nmi.h> +#include <linux/pgtable.h> #include <asm/debugfs.h> #include <asm/io.h> #include <asm/kdump.h> #include <asm/prom.h> #include <asm/processor.h> -#include <asm/pgtable.h> #include <asm/smp.h> #include <asm/elf.h> #include <asm/machdep.h> diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c index ae3da7440b2f..1415c16ab628 100644 --- a/arch/powerpc/kernel/signal_32.c +++ b/arch/powerpc/kernel/signal_32.c @@ -47,7 +47,6 @@ #include <asm/unistd.h> #else #include <asm/ucontext.h> -#include <asm/pgtable.h> #endif #include "signal.h" diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c index 77061915897f..55e5f76554da 100644 --- a/arch/powerpc/kernel/signal_64.c +++ b/arch/powerpc/kernel/signal_64.c @@ -25,7 +25,6 @@ #include <asm/sigcontext.h> #include <asm/ucontext.h> #include <linux/uaccess.h> -#include <asm/pgtable.h> #include <asm/unistd.h> #include <asm/cacheflush.h> #include <asm/syscalls.h> diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 6d2a3a3666f0..e88606b31cf6 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -33,6 +33,7 @@ #include <linux/processor.h> #include <linux/random.h> #include <linux/stackprotector.h> +#include <linux/pgtable.h> #include <asm/ptrace.h> #include <linux/atomic.h> @@ -41,7 +42,6 @@ #include <asm/kvm_ppc.h> #include <asm/dbell.h> #include <asm/page.h> -#include <asm/pgtable.h> #include <asm/prom.h> #include <asm/smp.h> #include <asm/time.h> diff --git a/arch/powerpc/kernel/stacktrace.c b/arch/powerpc/kernel/stacktrace.c index c477b8585a29..b6440657ef92 100644 --- a/arch/powerpc/kernel/stacktrace.c +++ b/arch/powerpc/kernel/stacktrace.c @@ -260,7 +260,7 @@ static void raise_backtrace_ipi(cpumask_t *mask) pr_cont(" current pointer corrupt? (%px)\n", p->__current); pr_warn("Back trace of paca->saved_r1 (0x%016llx) (possibly stale):\n", p->saved_r1); - show_stack(p->__current, (unsigned long *)p->saved_r1); + show_stack(p->__current, (unsigned long *)p->saved_r1, KERN_WARNING); } } diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl index 4dda0f1ce513..72fb9dd88e16 100644 --- a/arch/powerpc/kernel/syscalls/syscall.tbl +++ b/arch/powerpc/kernel/syscalls/syscall.tbl @@ -531,3 +531,4 @@ 440 common watch_mount sys_watch_mount 441 common watch_sb sys_watch_sb 442 common fsinfo sys_fsinfo +443 common process_madvise sys_process_madvise compat_sys_process_madvise diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 3e2fe03312b0..ec16e6a255de 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -39,7 +39,6 @@ #include <linux/kmsg_dump.h> #include <asm/emulated_ops.h> -#include <asm/pgtable.h> #include <linux/uaccess.h> #include <asm/debugfs.h> #include <asm/io.h> diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c index f38f26e844b6..e0f4ba45b6cc 100644 --- a/arch/powerpc/kernel/vdso.c +++ b/arch/powerpc/kernel/vdso.c @@ -18,7 +18,6 @@ #include <linux/security.h> #include <linux/memblock.h> -#include <asm/pgtable.h> #include <asm/processor.h> #include <asm/mmu.h> #include <asm/mmu_context.h> @@ -171,7 +170,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) * and end up putting it elsewhere. * Add enough to the size so that the result can be aligned. */ - if (down_write_killable(&mm->mmap_sem)) + if (mmap_write_lock_killable(mm)) return -EINTR; vdso_base = get_unmapped_area(NULL, vdso_base, (vdso_pages << PAGE_SHIFT) + @@ -211,11 +210,11 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) goto fail_mmapsem; } - up_write(&mm->mmap_sem); + mmap_write_unlock(mm); return 0; fail_mmapsem: - up_write(&mm->mmap_sem); + mmap_write_unlock(mm); return rc; } diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c index 18aed9775a3c..ddfc4c90ebb6 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_hv.c +++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c @@ -581,7 +581,7 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu, * We always ask for write permission since the common case * is that the page is writable. */ - if (__get_user_pages_fast(hva, 1, 1, &page) == 1) { + if (get_user_page_fast_only(hva, FOLL_WRITE, &page)) { write_ok = true; } else { /* Call KVM generic code to do the slow-path check */ diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c index 271f1c3d8443..5d4c087b9d4f 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_radix.c +++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c @@ -11,12 +11,12 @@ #include <linux/anon_inodes.h> #include <linux/file.h> #include <linux/debugfs.h> +#include <linux/pgtable.h> #include <asm/kvm_ppc.h> #include <asm/kvm_book3s.h> #include <asm/page.h> #include <asm/mmu.h> -#include <asm/pgtable.h> #include <asm/pgalloc.h> #include <asm/pte-walk.h> #include <asm/ultravisor.h> @@ -499,13 +499,14 @@ void kvmppc_free_pgtable_radix(struct kvm *kvm, pgd_t *pgd, unsigned int lpid) unsigned long ig; for (ig = 0; ig < PTRS_PER_PGD; ++ig, ++pgd) { + p4d_t *p4d = p4d_offset(pgd, 0); pud_t *pud; - if (!pgd_present(*pgd)) + if (!p4d_present(*p4d)) continue; - pud = pud_offset(pgd, 0); + pud = pud_offset(p4d, 0); kvmppc_unmap_free_pud(kvm, pud, lpid); - pgd_clear(pgd); + p4d_clear(p4d); } } @@ -566,6 +567,7 @@ int kvmppc_create_pte(struct kvm *kvm, pgd_t *pgtable, pte_t pte, unsigned long *rmapp, struct rmap_nested **n_rmap) { pgd_t *pgd; + p4d_t *p4d; pud_t *pud, *new_pud = NULL; pmd_t *pmd, *new_pmd = NULL; pte_t *ptep, *new_ptep = NULL; @@ -573,9 +575,11 @@ int kvmppc_create_pte(struct kvm *kvm, pgd_t *pgtable, pte_t pte, /* Traverse the guest's 2nd-level tree, allocate new levels needed */ pgd = pgtable + pgd_index(gpa); + p4d = p4d_offset(pgd, gpa); + pud = NULL; - if (pgd_present(*pgd)) - pud = pud_offset(pgd, gpa); + if (p4d_present(*p4d)) + pud = pud_offset(p4d, gpa); else new_pud = pud_alloc_one(kvm->mm, gpa); @@ -596,13 +600,13 @@ int kvmppc_create_pte(struct kvm *kvm, pgd_t *pgtable, pte_t pte, /* Now traverse again under the lock and change the tree */ ret = -ENOMEM; - if (pgd_none(*pgd)) { + if (p4d_none(*p4d)) { if (!new_pud) goto out_unlock; - pgd_populate(kvm->mm, pgd, new_pud); + p4d_populate(kvm->mm, p4d, new_pud); new_pud = NULL; } - pud = pud_offset(pgd, gpa); + pud = pud_offset(p4d, gpa); if (pud_is_leaf(*pud)) { unsigned long hgpa = gpa & PUD_MASK; @@ -791,7 +795,7 @@ int kvmppc_book3s_instantiate_page(struct kvm_vcpu *vcpu, * is that the page is writable. */ hva = gfn_to_hva_memslot(memslot, gfn); - if (!kvm_ro && __get_user_pages_fast(hva, 1, 1, &page) == 1) { + if (!kvm_ro && get_user_page_fast_only(hva, FOLL_WRITE, &page)) { upgrade_write = true; } else { unsigned long pfn; @@ -1220,7 +1224,8 @@ static ssize_t debugfs_radix_read(struct file *file, char __user *buf, unsigned long gpa; pgd_t *pgt; struct kvm_nested_guest *nested; - pgd_t pgd, *pgdp; + pgd_t *pgdp; + p4d_t p4d, *p4dp; pud_t pud, *pudp; pmd_t pmd, *pmdp; pte_t *ptep; @@ -1293,13 +1298,14 @@ static ssize_t debugfs_radix_read(struct file *file, char __user *buf, } pgdp = pgt + pgd_index(gpa); - pgd = READ_ONCE(*pgdp); - if (!(pgd_val(pgd) & _PAGE_PRESENT)) { - gpa = (gpa & PGDIR_MASK) + PGDIR_SIZE; + p4dp = p4d_offset(pgdp, gpa); + p4d = READ_ONCE(*p4dp); + if (!(p4d_val(p4d) & _PAGE_PRESENT)) { + gpa = (gpa & P4D_MASK) + P4D_SIZE; continue; } - pudp = pud_offset(&pgd, gpa); + pudp = pud_offset(&p4d, gpa); pud = READ_ONCE(*pudp); if (!(pud_val(pud) & _PAGE_PRESENT)) { gpa = (gpa & PUD_MASK) + PUD_SIZE; diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 058ab7fdf288..7698e0556755 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -4624,14 +4624,14 @@ static int kvmppc_hv_setup_htab_rma(struct kvm_vcpu *vcpu) /* Look up the VMA for the start of this memory slot */ hva = memslot->userspace_addr; - down_read(&kvm->mm->mmap_sem); + mmap_read_lock(kvm->mm); vma = find_vma(kvm->mm, hva); if (!vma || vma->vm_start > hva || (vma->vm_flags & VM_IO)) goto up_out; psize = vma_kernel_pagesize(vma); - up_read(&kvm->mm->mmap_sem); + mmap_read_unlock(kvm->mm); /* We can handle 4k, 64k or 16M pages in the VRMA */ if (psize >= 0x1000000) @@ -4664,7 +4664,7 @@ static int kvmppc_hv_setup_htab_rma(struct kvm_vcpu *vcpu) return err; up_out: - up_read(&kvm->mm->mmap_sem); + mmap_read_unlock(kvm->mm); goto out_srcu; } diff --git a/arch/powerpc/kvm/book3s_hv_nested.c b/arch/powerpc/kvm/book3s_hv_nested.c index 66c38ee37fd5..a221cae792dc 100644 --- a/arch/powerpc/kvm/book3s_hv_nested.c +++ b/arch/powerpc/kvm/book3s_hv_nested.c @@ -11,11 +11,11 @@ #include <linux/kernel.h> #include <linux/kvm_host.h> #include <linux/llist.h> +#include <linux/pgtable.h> #include <asm/kvm_ppc.h> #include <asm/kvm_book3s.h> #include <asm/mmu.h> -#include <asm/pgtable.h> #include <asm/pgalloc.h> #include <asm/pte-walk.h> #include <asm/reg.h> diff --git a/arch/powerpc/kvm/book3s_hv_rm_xics.c b/arch/powerpc/kvm/book3s_hv_rm_xics.c index 287d5911df0f..4d7e5610731a 100644 --- a/arch/powerpc/kvm/book3s_hv_rm_xics.c +++ b/arch/powerpc/kvm/book3s_hv_rm_xics.c @@ -8,6 +8,7 @@ #include <linux/kvm_host.h> #include <linux/err.h> #include <linux/kernel_stat.h> +#include <linux/pgtable.h> #include <asm/kvm_book3s.h> #include <asm/kvm_ppc.h> @@ -15,7 +16,6 @@ #include <asm/xics.h> #include <asm/synch.h> #include <asm/cputhreads.h> -#include <asm/pgtable.h> #include <asm/ppc-opcode.h> #include <asm/pnv-pci.h> #include <asm/opal.h> diff --git a/arch/powerpc/kvm/book3s_hv_rm_xive.c b/arch/powerpc/kvm/book3s_hv_rm_xive.c index 174d75e476fa..6f18632e30e9 100644 --- a/arch/powerpc/kvm/book3s_hv_rm_xive.c +++ b/arch/powerpc/kvm/book3s_hv_rm_xive.c @@ -3,6 +3,7 @@ #include <linux/kvm_host.h> #include <linux/err.h> #include <linux/kernel_stat.h> +#include <linux/pgtable.h> #include <asm/kvm_book3s.h> #include <asm/kvm_ppc.h> @@ -11,7 +12,6 @@ #include <asm/debug.h> #include <asm/synch.h> #include <asm/cputhreads.h> -#include <asm/pgtable.h> #include <asm/ppc-opcode.h> #include <asm/pnv-pci.h> #include <asm/opal.h> diff --git a/arch/powerpc/kvm/book3s_hv_uvmem.c b/arch/powerpc/kvm/book3s_hv_uvmem.c index 76d05c71fb1f..f91224ea034a 100644 --- a/arch/powerpc/kvm/book3s_hv_uvmem.c +++ b/arch/powerpc/kvm/book3s_hv_uvmem.c @@ -47,7 +47,7 @@ * Locking order * * 1. kvm->srcu - Protects KVM memslots - * 2. kvm->mm->mmap_sem - find_vma, migrate_vma_pages and helpers, ksm_madvise + * 2. kvm->mm->mmap_lock - find_vma, migrate_vma_pages and helpers, ksm_madvise * 3. kvm->arch.uvmem_lock - protects read/writes to uvmem slots thus acting * as sync-points for page-in/out */ @@ -402,13 +402,13 @@ kvmppc_svm_page_in(struct vm_area_struct *vma, unsigned long start, mig.dst = &dst_pfn; /* - * We come here with mmap_sem write lock held just for - * ksm_madvise(), otherwise we only need read mmap_sem. + * We come here with mmap_lock write lock held just for + * ksm_madvise(), otherwise we only need read mmap_lock. * Hence downgrade to read lock once ksm_madvise() is done. */ ret = ksm_madvise(vma, vma->vm_start, vma->vm_end, MADV_UNMERGEABLE, &vma->vm_flags); - downgrade_write(&kvm->mm->mmap_sem); + mmap_write_downgrade(kvm->mm); *downgrade = true; if (ret) return ret; @@ -525,7 +525,7 @@ kvmppc_h_svm_page_in(struct kvm *kvm, unsigned long gpa, ret = H_PARAMETER; srcu_idx = srcu_read_lock(&kvm->srcu); - down_write(&kvm->mm->mmap_sem); + mmap_write_lock(kvm->mm); start = gfn_to_hva(kvm, gfn); if (kvm_is_error_hva(start)) @@ -548,9 +548,9 @@ out_unlock: mutex_unlock(&kvm->arch.uvmem_lock); out: if (downgrade) - up_read(&kvm->mm->mmap_sem); + mmap_read_unlock(kvm->mm); else - up_write(&kvm->mm->mmap_sem); + mmap_write_unlock(kvm->mm); srcu_read_unlock(&kvm->srcu, srcu_idx); return ret; } @@ -703,7 +703,7 @@ kvmppc_h_svm_page_out(struct kvm *kvm, unsigned long gpa, ret = H_PARAMETER; srcu_idx = srcu_read_lock(&kvm->srcu); - down_read(&kvm->mm->mmap_sem); + mmap_read_lock(kvm->mm); start = gfn_to_hva(kvm, gfn); if (kvm_is_error_hva(start)) goto out; @@ -716,7 +716,7 @@ kvmppc_h_svm_page_out(struct kvm *kvm, unsigned long gpa, if (!kvmppc_svm_page_out(vma, start, end, page_shift, kvm, gpa)) ret = H_SUCCESS; out: - up_read(&kvm->mm->mmap_sem); + mmap_read_unlock(kvm->mm); srcu_read_unlock(&kvm->srcu, srcu_idx); return ret; } diff --git a/arch/powerpc/kvm/e500_mmu_host.c b/arch/powerpc/kvm/e500_mmu_host.c index df9989cf7ba3..d6c1069e9954 100644 --- a/arch/powerpc/kvm/e500_mmu_host.c +++ b/arch/powerpc/kvm/e500_mmu_host.c @@ -355,7 +355,7 @@ static inline int kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500, if (tlbsel == 1) { struct vm_area_struct *vma; - down_read(&kvm->mm->mmap_sem); + mmap_read_lock(kvm->mm); vma = find_vma(kvm->mm, hva); if (vma && hva >= vma->vm_start && @@ -441,7 +441,7 @@ static inline int kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500, tsize = max(BOOK3E_PAGESZ_4K, tsize & ~1); } - up_read(&kvm->mm->mmap_sem); + mmap_read_unlock(kvm->mm); } if (likely(!pfnmap)) { diff --git a/arch/powerpc/kvm/fpu.S b/arch/powerpc/kvm/fpu.S index 3dfae0cb6228..315c94946bad 100644 --- a/arch/powerpc/kvm/fpu.S +++ b/arch/powerpc/kvm/fpu.S @@ -5,10 +5,10 @@ * Copyright (C) 2010 Alexander Graf (agraf@suse.de) */ +#include <linux/pgtable.h> #include <asm/reg.h> #include <asm/page.h> #include <asm/mmu.h> -#include <asm/pgtable.h> #include <asm/cputable.h> #include <asm/cache.h> #include <asm/thread_info.h> diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c index 64cf621e5b00..5b3d743c32fd 100644 --- a/arch/powerpc/lib/code-patching.c +++ b/arch/powerpc/lib/code-patching.c @@ -12,7 +12,6 @@ #include <linux/slab.h> #include <linux/uaccess.h> -#include <asm/pgtable.h> #include <asm/tlbflush.h> #include <asm/page.h> #include <asm/code-patching.h> @@ -119,13 +118,18 @@ static inline int unmap_patch_area(unsigned long addr) pte_t *ptep; pmd_t *pmdp; pud_t *pudp; + p4d_t *p4dp; pgd_t *pgdp; pgdp = pgd_offset_k(addr); if (unlikely(!pgdp)) return -EINVAL; - pudp = pud_offset(pgdp, addr); + p4dp = p4d_offset(pgdp, addr); + if (unlikely(!p4dp)) + return -EINVAL; + + pudp = pud_offset(p4dp, addr); if (unlikely(!pudp)) return -EINVAL; diff --git a/arch/powerpc/mm/book3s32/hash_low.S b/arch/powerpc/mm/book3s32/hash_low.S index 877d880890fe..4328253eb23c 100644 --- a/arch/powerpc/mm/book3s32/hash_low.S +++ b/arch/powerpc/mm/book3s32/hash_low.S @@ -14,9 +14,9 @@ * hash table, so this file is not used on them.) */ +#include <linux/pgtable.h> #include <asm/reg.h> #include <asm/page.h> -#include <asm/pgtable.h> #include <asm/cputable.h> #include <asm/ppc_asm.h> #include <asm/thread_info.h> diff --git a/arch/powerpc/mm/book3s32/mmu.c b/arch/powerpc/mm/book3s32/mmu.c index 39ba53ca5bb5..afd8caf3f8f5 100644 --- a/arch/powerpc/mm/book3s32/mmu.c +++ b/arch/powerpc/mm/book3s32/mmu.c @@ -312,7 +312,7 @@ void hash_preload(struct mm_struct *mm, unsigned long ea) if (!Hash) return; - pmd = pmd_ptr(mm, ea); + pmd = pmd_off(mm, ea); if (!pmd_none(*pmd)) add_hash_page(mm->context.id, ea, pmd_val(*pmd)); } diff --git a/arch/powerpc/mm/book3s32/tlb.c b/arch/powerpc/mm/book3s32/tlb.c index dc9039a170aa..b6c7427daa6f 100644 --- a/arch/powerpc/mm/book3s32/tlb.c +++ b/arch/powerpc/mm/book3s32/tlb.c @@ -90,7 +90,7 @@ static void flush_range(struct mm_struct *mm, unsigned long start, if (start >= end) return; end = (end - 1) | ~PAGE_MASK; - pmd = pmd_ptr(mm, start); + pmd = pmd_off(mm, start); for (;;) { pmd_end = ((start + PGDIR_SIZE) & PGDIR_MASK) - 1; if (pmd_end > end) @@ -129,7 +129,7 @@ void flush_tlb_mm(struct mm_struct *mm) /* * It is safe to go down the mm's list of vmas when called - * from dup_mmap, holding mmap_sem. It would also be safe from + * from dup_mmap, holding mmap_lock. It would also be safe from * unmap_region or exit_mmap, but not from vmtruncate on SMP - * but it seems dup_mmap is the only SMP case which gets here. */ @@ -148,7 +148,7 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr) return; } mm = (vmaddr < TASK_SIZE)? vma->vm_mm: &init_mm; - pmd = pmd_ptr(mm, vmaddr); + pmd = pmd_off(mm, vmaddr); if (!pmd_none(*pmd)) flush_hash_pages(mm->context.id, vmaddr, pmd_val(*pmd), 1); } diff --git a/arch/powerpc/mm/book3s64/hash_hugetlbpage.c b/arch/powerpc/mm/book3s64/hash_hugetlbpage.c index eefa89c6117b..25acb9c5ee1b 100644 --- a/arch/powerpc/mm/book3s64/hash_hugetlbpage.c +++ b/arch/powerpc/mm/book3s64/hash_hugetlbpage.c @@ -10,7 +10,6 @@ #include <linux/mm.h> #include <linux/hugetlb.h> -#include <asm/pgtable.h> #include <asm/pgalloc.h> #include <asm/cacheflush.h> #include <asm/machdep.h> diff --git a/arch/powerpc/mm/book3s64/hash_native.c b/arch/powerpc/mm/book3s64/hash_native.c index d2d8237ea9d5..cf20e5229ce1 100644 --- a/arch/powerpc/mm/book3s64/hash_native.c +++ b/arch/powerpc/mm/book3s64/hash_native.c @@ -14,11 +14,11 @@ #include <linux/processor.h> #include <linux/threads.h> #include <linux/smp.h> +#include <linux/pgtable.h> #include <asm/machdep.h> #include <asm/mmu.h> #include <asm/mmu_context.h> -#include <asm/pgtable.h> #include <asm/trace.h> #include <asm/tlb.h> #include <asm/cputable.h> diff --git a/arch/powerpc/mm/book3s64/hash_pgtable.c b/arch/powerpc/mm/book3s64/hash_pgtable.c index 64ca375278dc..2a99167afbaf 100644 --- a/arch/powerpc/mm/book3s64/hash_pgtable.c +++ b/arch/powerpc/mm/book3s64/hash_pgtable.c @@ -10,7 +10,6 @@ #include <linux/mm.h> #include <asm/pgalloc.h> -#include <asm/pgtable.h> #include <asm/sections.h> #include <asm/mmu.h> #include <asm/tlb.h> @@ -148,6 +147,7 @@ void hash__vmemmap_remove_mapping(unsigned long start, int hash__map_kernel_page(unsigned long ea, unsigned long pa, pgprot_t prot) { pgd_t *pgdp; + p4d_t *p4dp; pud_t *pudp; pmd_t *pmdp; pte_t *ptep; @@ -155,7 +155,8 @@ int hash__map_kernel_page(unsigned long ea, unsigned long pa, pgprot_t prot) BUILD_BUG_ON(TASK_SIZE_USER64 > H_PGTABLE_RANGE); if (slab_is_available()) { pgdp = pgd_offset_k(ea); - pudp = pud_alloc(&init_mm, pgdp, ea); + p4dp = p4d_offset(pgdp, ea); + pudp = pud_alloc(&init_mm, p4dp, ea); if (!pudp) return -ENOMEM; pmdp = pmd_alloc(&init_mm, pudp, ea); @@ -236,7 +237,7 @@ pmd_t hash__pmdp_collapse_flush(struct vm_area_struct *vma, unsigned long addres * to hugepage, we first clear the pmd, then invalidate all * the PTE entries. The assumption here is that any low level * page fault will see a none pmd and take the slow path that - * will wait on mmap_sem. But we could very well be in a + * will wait on mmap_lock. But we could very well be in a * hash_page with local ptep pointer value. Such a hash page * can result in adding new HPTE entries for normal subpages. * That means we could be modifying the page content as we @@ -250,7 +251,7 @@ pmd_t hash__pmdp_collapse_flush(struct vm_area_struct *vma, unsigned long addres * Now invalidate the hpte entries in the range * covered by pmd. This make sure we take a * fault and will find the pmd as none, which will - * result in a major fault which takes mmap_sem and + * result in a major fault which takes mmap_lock and * hence wait for collapse to complete. Without this * the __collapse_huge_page_copy can result in copying * the old content. diff --git a/arch/powerpc/mm/book3s64/hash_utils.c b/arch/powerpc/mm/book3s64/hash_utils.c index 3d727f73a8db..51e3c15f7aff 100644 --- a/arch/powerpc/mm/book3s64/hash_utils.c +++ b/arch/powerpc/mm/book3s64/hash_utils.c @@ -35,10 +35,10 @@ #include <linux/pkeys.h> #include <linux/hugetlb.h> #include <linux/cpu.h> +#include <linux/pgtable.h> #include <asm/debugfs.h> #include <asm/processor.h> -#include <asm/pgtable.h> #include <asm/mmu.h> #include <asm/mmu_context.h> #include <asm/page.h> diff --git a/arch/powerpc/mm/book3s64/iommu_api.c b/arch/powerpc/mm/book3s64/iommu_api.c index fa05bbd1f682..563faa10bb66 100644 --- a/arch/powerpc/mm/book3s64/iommu_api.c +++ b/arch/powerpc/mm/book3s64/iommu_api.c @@ -96,7 +96,7 @@ static long mm_iommu_do_alloc(struct mm_struct *mm, unsigned long ua, goto unlock_exit; } - down_read(&mm->mmap_sem); + mmap_read_lock(mm); chunk = (1UL << (PAGE_SHIFT + MAX_ORDER - 1)) / sizeof(struct vm_area_struct *); chunk = min(chunk, entries); @@ -114,7 +114,7 @@ static long mm_iommu_do_alloc(struct mm_struct *mm, unsigned long ua, pinned += ret; break; } - up_read(&mm->mmap_sem); + mmap_read_unlock(mm); if (pinned != entries) { if (!ret) ret = -EFAULT; diff --git a/arch/powerpc/mm/book3s64/radix_hugetlbpage.c b/arch/powerpc/mm/book3s64/radix_hugetlbpage.c index cab06331c0c0..c812b401b66c 100644 --- a/arch/powerpc/mm/book3s64/radix_hugetlbpage.c +++ b/arch/powerpc/mm/book3s64/radix_hugetlbpage.c @@ -2,7 +2,6 @@ #include <linux/mm.h> #include <linux/hugetlb.h> #include <linux/security.h> -#include <asm/pgtable.h> #include <asm/pgalloc.h> #include <asm/cacheflush.h> #include <asm/machdep.h> diff --git a/arch/powerpc/mm/book3s64/radix_pgtable.c b/arch/powerpc/mm/book3s64/radix_pgtable.c index 408176086dd5..bb00e0cba119 100644 --- a/arch/powerpc/mm/book3s64/radix_pgtable.c +++ b/arch/powerpc/mm/book3s64/radix_pgtable.c @@ -17,7 +17,6 @@ #include <linux/string_helpers.h> #include <linux/stop_machine.h> -#include <asm/pgtable.h> #include <asm/pgalloc.h> #include <asm/mmu_context.h> #include <asm/dma.h> @@ -65,17 +64,19 @@ static int early_map_kernel_page(unsigned long ea, unsigned long pa, { unsigned long pfn = pa >> PAGE_SHIFT; pgd_t *pgdp; + p4d_t *p4dp; pud_t *pudp; pmd_t *pmdp; pte_t *ptep; pgdp = pgd_offset_k(ea); - if (pgd_none(*pgdp)) { + p4dp = p4d_offset(pgdp, ea); + if (p4d_none(*p4dp)) { pudp = early_alloc_pgtable(PUD_TABLE_SIZE, nid, region_start, region_end); - pgd_populate(&init_mm, pgdp, pudp); + p4d_populate(&init_mm, p4dp, pudp); } - pudp = pud_offset(pgdp, ea); + pudp = pud_offset(p4dp, ea); if (map_page_size == PUD_SIZE) { ptep = (pte_t *)pudp; goto set_the_pte; @@ -115,6 +116,7 @@ static int __map_kernel_page(unsigned long ea, unsigned long pa, { unsigned long pfn = pa >> PAGE_SHIFT; pgd_t *pgdp; + p4d_t *p4dp; pud_t *pudp; pmd_t *pmdp; pte_t *ptep; @@ -137,7 +139,8 @@ static int __map_kernel_page(unsigned long ea, unsigned long pa, * boot. */ pgdp = pgd_offset_k(ea); - pudp = pud_alloc(&init_mm, pgdp, ea); + p4dp = p4d_offset(pgdp, ea); + pudp = pud_alloc(&init_mm, p4dp, ea); if (!pudp) return -ENOMEM; if (map_page_size == PUD_SIZE) { @@ -174,6 +177,7 @@ void radix__change_memory_range(unsigned long start, unsigned long end, { unsigned long idx; pgd_t *pgdp; + p4d_t *p4dp; pud_t *pudp; pmd_t *pmdp; pte_t *ptep; @@ -186,7 +190,8 @@ void radix__change_memory_range(unsigned long start, unsigned long end, for (idx = start; idx < end; idx += PAGE_SIZE) { pgdp = pgd_offset_k(idx); - pudp = pud_alloc(&init_mm, pgdp, idx); + p4dp = p4d_offset(pgdp, idx); + pudp = pud_alloc(&init_mm, p4dp, idx); if (!pudp) continue; if (pud_is_leaf(*pudp)) { @@ -850,6 +855,7 @@ static void __meminit remove_pagetable(unsigned long start, unsigned long end) unsigned long addr, next; pud_t *pud_base; pgd_t *pgd; + p4d_t *p4d; spin_lock(&init_mm.page_table_lock); @@ -857,15 +863,16 @@ static void __meminit remove_pagetable(unsigned long start, unsigned long end) next = pgd_addr_end(addr, end); pgd = pgd_offset_k(addr); - if (!pgd_present(*pgd)) + p4d = p4d_offset(pgd, addr); + if (!p4d_present(*p4d)) continue; - if (pgd_is_leaf(*pgd)) { - split_kernel_mapping(addr, end, PGDIR_SIZE, (pte_t *)pgd); + if (p4d_is_leaf(*p4d)) { + split_kernel_mapping(addr, end, P4D_SIZE, (pte_t *)p4d); continue; } - pud_base = (pud_t *)pgd_page_vaddr(*pgd); + pud_base = (pud_t *)p4d_page_vaddr(*p4d); remove_pud_table(pud_base, addr, next); } diff --git a/arch/powerpc/mm/book3s64/slb.c b/arch/powerpc/mm/book3s64/slb.c index 716204aee3da..8c4ca4d62848 100644 --- a/arch/powerpc/mm/book3s64/slb.c +++ b/arch/powerpc/mm/book3s64/slb.c @@ -10,7 +10,6 @@ */ #include <asm/asm-prototypes.h> -#include <asm/pgtable.h> #include <asm/mmu.h> #include <asm/mmu_context.h> #include <asm/paca.h> @@ -21,6 +20,7 @@ #include <linux/compiler.h> #include <linux/context_tracking.h> #include <linux/mm_types.h> +#include <linux/pgtable.h> #include <asm/udbg.h> #include <asm/code-patching.h> diff --git a/arch/powerpc/mm/book3s64/subpage_prot.c b/arch/powerpc/mm/book3s64/subpage_prot.c index 2ef24a53f4c9..60c6ea16a972 100644 --- a/arch/powerpc/mm/book3s64/subpage_prot.c +++ b/arch/powerpc/mm/book3s64/subpage_prot.c @@ -11,7 +11,7 @@ #include <linux/hugetlb.h> #include <linux/syscalls.h> -#include <asm/pgtable.h> +#include <linux/pgtable.h> #include <linux/uaccess.h> /* @@ -54,15 +54,17 @@ static void hpte_flush_range(struct mm_struct *mm, unsigned long addr, int npages) { pgd_t *pgd; + p4d_t *p4d; pud_t *pud; pmd_t *pmd; pte_t *pte; spinlock_t *ptl; pgd = pgd_offset(mm, addr); - if (pgd_none(*pgd)) + p4d = p4d_offset(pgd, addr); + if (p4d_none(*p4d)) return; - pud = pud_offset(pgd, addr); + pud = pud_offset(p4d, addr); if (pud_none(*pud)) return; pmd = pmd_offset(pud, addr); @@ -92,7 +94,7 @@ static void subpage_prot_clear(unsigned long addr, unsigned long len) size_t nw; unsigned long next, limit; - down_write(&mm->mmap_sem); + mmap_write_lock(mm); spt = mm_ctx_subpage_prot(&mm->context); if (!spt) @@ -127,7 +129,7 @@ static void subpage_prot_clear(unsigned long addr, unsigned long len) } err_out: - up_write(&mm->mmap_sem); + mmap_write_unlock(mm); } #ifdef CONFIG_TRANSPARENT_HUGEPAGE @@ -217,13 +219,13 @@ SYSCALL_DEFINE3(subpage_prot, unsigned long, addr, if (!access_ok(map, (len >> PAGE_SHIFT) * sizeof(u32))) return -EFAULT; - down_write(&mm->mmap_sem); + mmap_write_lock(mm); spt = mm_ctx_subpage_prot(&mm->context); if (!spt) { /* * Allocate subpage prot table if not already done. - * Do this with mmap_sem held + * Do this with mmap_lock held */ spt = kzalloc(sizeof(struct subpage_prot_table), GFP_KERNEL); if (!spt) { @@ -267,11 +269,11 @@ SYSCALL_DEFINE3(subpage_prot, unsigned long, addr, if (addr + (nw << PAGE_SHIFT) > next) nw = (next - addr) >> PAGE_SHIFT; - up_write(&mm->mmap_sem); + mmap_write_unlock(mm); if (__copy_from_user(spp, map, nw * sizeof(u32))) return -EFAULT; map += nw; - down_write(&mm->mmap_sem); + mmap_write_lock(mm); /* now flush any existing HPTEs for the range */ hpte_flush_range(mm, addr, nw); @@ -280,6 +282,6 @@ SYSCALL_DEFINE3(subpage_prot, unsigned long, addr, spt->maxaddr = limit; err = 0; out: - up_write(&mm->mmap_sem); + mmap_write_unlock(mm); return err; } diff --git a/arch/powerpc/mm/copro_fault.c b/arch/powerpc/mm/copro_fault.c index beb060b96632..b83abbead4a2 100644 --- a/arch/powerpc/mm/copro_fault.c +++ b/arch/powerpc/mm/copro_fault.c @@ -33,7 +33,7 @@ int copro_handle_mm_fault(struct mm_struct *mm, unsigned long ea, if (mm->pgd == NULL) return -EFAULT; - down_read(&mm->mmap_sem); + mmap_read_lock(mm); ret = -EFAULT; vma = find_vma(mm, ea); if (!vma) @@ -82,7 +82,7 @@ int copro_handle_mm_fault(struct mm_struct *mm, unsigned long ea, current->min_flt++; out_unlock: - up_read(&mm->mmap_sem); + mmap_read_unlock(mm); return ret; } EXPORT_SYMBOL_GPL(copro_handle_mm_fault); diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c index 2393ed9d84bb..641fc5f3d7dd 100644 --- a/arch/powerpc/mm/fault.c +++ b/arch/powerpc/mm/fault.c @@ -35,7 +35,6 @@ #include <asm/firmware.h> #include <asm/page.h> -#include <asm/pgtable.h> #include <asm/mmu.h> #include <asm/mmu_context.h> #include <asm/siginfo.h> @@ -109,7 +108,7 @@ static int __bad_area(struct pt_regs *regs, unsigned long address, int si_code) * Something tried to access memory that isn't in our memory map.. * Fix it, but check if it's kernel or user first.. */ - up_read(&mm->mmap_sem); + mmap_read_unlock(mm); return __bad_area_nosemaphore(regs, address, si_code); } @@ -139,13 +138,13 @@ static noinline int bad_access_pkey(struct pt_regs *regs, unsigned long address, * 2. T1 : set AMR to deny access to pkey=4, touches, page * 3. T1 : faults... * 4. T2: mprotect_key(foo, PAGE_SIZE, pkey=5); - * 5. T1 : enters fault handler, takes mmap_sem, etc... + * 5. T1 : enters fault handler, takes mmap_lock, etc... * 6. T1 : reaches here, sees vma_pkey(vma)=5, when we really * faulted on a pte with its pkey=4. */ pkey = vma_pkey(vma); - up_read(&mm->mmap_sem); + mmap_read_unlock(mm); /* * If we are in kernel mode, bail out with a SEGV, this will @@ -526,9 +525,9 @@ static int __do_page_fault(struct pt_regs *regs, unsigned long address, perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address); /* - * We want to do this outside mmap_sem, because reading code around nip + * We want to do this outside mmap_lock, because reading code around nip * can result in fault, which will cause a deadlock when called with - * mmap_sem held + * mmap_lock held */ if (is_user) flags |= FAULT_FLAG_USER; @@ -540,7 +539,7 @@ static int __do_page_fault(struct pt_regs *regs, unsigned long address, /* When running in the kernel we expect faults to occur only to * addresses in user space. All other faults represent errors in the * kernel and should generate an OOPS. Unfortunately, in the case of an - * erroneous fault occurring in a code path which already holds mmap_sem + * erroneous fault occurring in a code path which already holds mmap_lock * we will deadlock attempting to validate the fault against the * address space. Luckily the kernel only validly references user * space from well defined areas of code, which are listed in the @@ -552,12 +551,12 @@ static int __do_page_fault(struct pt_regs *regs, unsigned long address, * source. If this is invalid we can skip the address space check, * thus avoiding the deadlock. */ - if (unlikely(!down_read_trylock(&mm->mmap_sem))) { + if (unlikely(!mmap_read_trylock(mm))) { if (!is_user && !search_exception_tables(regs->nip)) return bad_area_nosemaphore(regs, address); retry: - down_read(&mm->mmap_sem); + mmap_read_lock(mm); } else { /* * The above down_read_trylock() might have succeeded in @@ -581,7 +580,7 @@ retry: if (!must_retry) return bad_area(regs, address); - up_read(&mm->mmap_sem); + mmap_read_unlock(mm); if (fault_in_pages_readable((const char __user *)regs->nip, sizeof(unsigned int))) return bad_area_nosemaphore(regs, address); @@ -616,7 +615,7 @@ good_area: return user_mode(regs) ? 0 : SIGBUS; /* - * Handle the retry right now, the mmap_sem has been released in that + * Handle the retry right now, the mmap_lock has been released in that * case. */ if (unlikely(fault & VM_FAULT_RETRY)) { @@ -626,7 +625,7 @@ good_area: } } - up_read(¤t->mm->mmap_sem); + mmap_read_unlock(current->mm); if (unlikely(fault & VM_FAULT_ERROR)) return mm_fault_error(regs, address, fault); diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c index 3b11e01611af..75e8731df1e8 100644 --- a/arch/powerpc/mm/hugetlbpage.c +++ b/arch/powerpc/mm/hugetlbpage.c @@ -19,7 +19,6 @@ #include <linux/swap.h> #include <linux/swapops.h> #include <linux/kmemleak.h> -#include <asm/pgtable.h> #include <asm/pgalloc.h> #include <asm/tlb.h> #include <asm/setup.h> @@ -119,6 +118,7 @@ static int __hugepte_alloc(struct mm_struct *mm, hugepd_t *hpdp, pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr, unsigned long sz) { pgd_t *pg; + p4d_t *p4; pud_t *pu; pmd_t *pm; hugepd_t *hpdp = NULL; @@ -128,20 +128,21 @@ pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr, unsigned long sz addr &= ~(sz-1); pg = pgd_offset(mm, addr); + p4 = p4d_offset(pg, addr); #ifdef CONFIG_PPC_BOOK3S_64 if (pshift == PGDIR_SHIFT) /* 16GB huge page */ - return (pte_t *) pg; + return (pte_t *) p4; else if (pshift > PUD_SHIFT) { /* * We need to use hugepd table */ ptl = &mm->page_table_lock; - hpdp = (hugepd_t *)pg; + hpdp = (hugepd_t *)p4; } else { pdshift = PUD_SHIFT; - pu = pud_alloc(mm, pg, addr); + pu = pud_alloc(mm, p4, addr); if (!pu) return NULL; if (pshift == PUD_SHIFT) @@ -166,10 +167,10 @@ pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr, unsigned long sz #else if (pshift >= PGDIR_SHIFT) { ptl = &mm->page_table_lock; - hpdp = (hugepd_t *)pg; + hpdp = (hugepd_t *)p4; } else { pdshift = PUD_SHIFT; - pu = pud_alloc(mm, pg, addr); + pu = pud_alloc(mm, p4, addr); if (!pu) return NULL; if (pshift >= PUD_SHIFT) { @@ -390,7 +391,7 @@ static void hugetlb_free_pmd_range(struct mmu_gather *tlb, pud_t *pud, mm_dec_nr_pmds(tlb->mm); } -static void hugetlb_free_pud_range(struct mmu_gather *tlb, pgd_t *pgd, +static void hugetlb_free_pud_range(struct mmu_gather *tlb, p4d_t *p4d, unsigned long addr, unsigned long end, unsigned long floor, unsigned long ceiling) { @@ -400,7 +401,7 @@ static void hugetlb_free_pud_range(struct mmu_gather *tlb, pgd_t *pgd, start = addr; do { - pud = pud_offset(pgd, addr); + pud = pud_offset(p4d, addr); next = pud_addr_end(addr, end); if (!is_hugepd(__hugepd(pud_val(*pud)))) { if (pud_none_or_clear_bad(pud)) @@ -435,8 +436,8 @@ static void hugetlb_free_pud_range(struct mmu_gather *tlb, pgd_t *pgd, if (end - 1 > ceiling - 1) return; - pud = pud_offset(pgd, start); - pgd_clear(pgd); + pud = pud_offset(p4d, start); + p4d_clear(p4d); pud_free_tlb(tlb, pud, start); mm_dec_nr_puds(tlb->mm); } @@ -449,6 +450,7 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long floor, unsigned long ceiling) { pgd_t *pgd; + p4d_t *p4d; unsigned long next; /* @@ -471,10 +473,11 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb, do { next = pgd_addr_end(addr, end); pgd = pgd_offset(tlb->mm, addr); + p4d = p4d_offset(pgd, addr); if (!is_hugepd(__hugepd(pgd_val(*pgd)))) { - if (pgd_none_or_clear_bad(pgd)) + if (p4d_none_or_clear_bad(p4d)) continue; - hugetlb_free_pud_range(tlb, pgd, addr, next, floor, ceiling); + hugetlb_free_pud_range(tlb, p4d, addr, next, floor, ceiling); } else { unsigned long more; /* @@ -487,7 +490,7 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb, if (more > next) next = more; - free_hugepd_range(tlb, (hugepd_t *)pgd, PGDIR_SHIFT, + free_hugepd_range(tlb, (hugepd_t *)p4d, PGDIR_SHIFT, addr, next, floor, ceiling); } } while (addr = next, addr != end); diff --git a/arch/powerpc/mm/init-common.c b/arch/powerpc/mm/init-common.c index 42ef7a6e6098..8e0d792ac296 100644 --- a/arch/powerpc/mm/init-common.c +++ b/arch/powerpc/mm/init-common.c @@ -17,8 +17,8 @@ #undef DEBUG #include <linux/string.h> +#include <linux/pgtable.h> #include <asm/pgalloc.h> -#include <asm/pgtable.h> #include <asm/kup.h> phys_addr_t memstart_addr __ro_after_init = (phys_addr_t)~0ull; diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c index 872df48ae41b..cde693b699f3 100644 --- a/arch/powerpc/mm/init_32.c +++ b/arch/powerpc/mm/init_32.c @@ -32,7 +32,6 @@ #include <asm/pgalloc.h> #include <asm/prom.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/mmu.h> #include <asm/smp.h> #include <asm/machdep.h> diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c index c7ce4ec5060e..bc73abf0bc25 100644 --- a/arch/powerpc/mm/init_64.c +++ b/arch/powerpc/mm/init_64.c @@ -47,7 +47,6 @@ #include <asm/rtas.h> #include <asm/io.h> #include <asm/mmu_context.h> -#include <asm/pgtable.h> #include <asm/mmu.h> #include <linux/uaccess.h> #include <asm/smp.h> diff --git a/arch/powerpc/mm/kasan/kasan_init_32.c b/arch/powerpc/mm/kasan/kasan_init_32.c index cbcad369fcb2..58c3b51ecd57 100644 --- a/arch/powerpc/mm/kasan/kasan_init_32.c +++ b/arch/powerpc/mm/kasan/kasan_init_32.c @@ -36,7 +36,7 @@ static int __init kasan_init_shadow_page_tables(unsigned long k_start, unsigned unsigned long k_cur, k_next; pte_t *new = NULL; - pmd = pmd_ptr_k(k_start); + pmd = pmd_off_k(k_start); for (k_cur = k_start; k_cur != k_end; k_cur = k_next, pmd++) { k_next = pgd_addr_end(k_cur, k_end); @@ -78,7 +78,7 @@ static int __init kasan_init_region(void *start, size_t size) block = memblock_alloc(k_end - k_start, PAGE_SIZE); for (k_cur = k_start & PAGE_MASK; k_cur < k_end; k_cur += PAGE_SIZE) { - pmd_t *pmd = pmd_ptr_k(k_cur); + pmd_t *pmd = pmd_off_k(k_cur); void *va = block + k_cur - k_start; pte_t pte = pfn_pte(PHYS_PFN(__pa(va)), PAGE_KERNEL); @@ -102,7 +102,7 @@ static void __init kasan_remap_early_shadow_ro(void) kasan_populate_pte(kasan_early_shadow_pte, prot); for (k_cur = k_start & PAGE_MASK; k_cur != k_end; k_cur += PAGE_SIZE) { - pmd_t *pmd = pmd_ptr_k(k_cur); + pmd_t *pmd = pmd_off_k(k_cur); pte_t *ptep = pte_offset_kernel(pmd, k_cur); if ((pte_val(*ptep) & PTE_RPN_MASK) != pa) @@ -121,7 +121,7 @@ static void __init kasan_unmap_early_shadow_vmalloc(void) phys_addr_t pa = __pa(kasan_early_shadow_page); for (k_cur = k_start & PAGE_MASK; k_cur < k_end; k_cur += PAGE_SIZE) { - pmd_t *pmd = pmd_offset(pud_offset(pgd_offset_k(k_cur), k_cur), k_cur); + pmd_t *pmd = pmd_off_k(k_cur); pte_t *ptep = pte_offset_kernel(pmd, k_cur); if ((pte_val(*ptep) & PTE_RPN_MASK) != pa) @@ -196,7 +196,7 @@ void __init kasan_early_init(void) unsigned long addr = KASAN_SHADOW_START; unsigned long end = KASAN_SHADOW_END; unsigned long next; - pmd_t *pmd = pmd_ptr_k(addr); + pmd_t *pmd = pmd_off_k(addr); BUILD_BUG_ON(KASAN_SHADOW_START & ~PGDIR_MASK); diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 7cebb9c818d3..b0d1d7561aa8 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -37,7 +37,6 @@ #include <asm/prom.h> #include <asm/io.h> #include <asm/mmu_context.h> -#include <asm/pgtable.h> #include <asm/mmu.h> #include <asm/smp.h> #include <asm/machdep.h> @@ -575,7 +574,7 @@ void copy_user_page(void *vto, void *vfrom, unsigned long vaddr, flush_dcache_page(pg); } -void flush_icache_user_range(struct vm_area_struct *vma, struct page *page, +void flush_icache_user_page(struct vm_area_struct *vma, struct page *page, unsigned long addr, int len) { unsigned long maddr; @@ -584,7 +583,6 @@ void flush_icache_user_range(struct vm_area_struct *vma, struct page *page, flush_icache_range(maddr, maddr + len); kunmap(page); } -EXPORT_SYMBOL(flush_icache_user_range); /* * System memory should not be in /proc/iomem but various tools expect it diff --git a/arch/powerpc/mm/nohash/40x.c b/arch/powerpc/mm/nohash/40x.c index 82862723ab42..b980e496bdc7 100644 --- a/arch/powerpc/mm/nohash/40x.c +++ b/arch/powerpc/mm/nohash/40x.c @@ -36,7 +36,6 @@ #include <asm/prom.h> #include <asm/io.h> #include <asm/mmu_context.h> -#include <asm/pgtable.h> #include <asm/mmu.h> #include <linux/uaccess.h> #include <asm/smp.h> @@ -104,7 +103,7 @@ unsigned long __init mmu_mapin_ram(unsigned long base, unsigned long top) pmd_t *pmdp; unsigned long val = p | _PMD_SIZE_16M | _PAGE_EXEC | _PAGE_HWWRITE; - pmdp = pmd_ptr_k(v); + pmdp = pmd_off_k(v); *pmdp++ = __pmd(val); *pmdp++ = __pmd(val); *pmdp++ = __pmd(val); @@ -119,7 +118,7 @@ unsigned long __init mmu_mapin_ram(unsigned long base, unsigned long top) pmd_t *pmdp; unsigned long val = p | _PMD_SIZE_4M | _PAGE_EXEC | _PAGE_HWWRITE; - pmdp = pmd_ptr_k(v); + pmdp = pmd_off_k(v); *pmdp = __pmd(val); v += LARGE_PAGE_SIZE_4M; diff --git a/arch/powerpc/mm/nohash/book3e_pgtable.c b/arch/powerpc/mm/nohash/book3e_pgtable.c index 4637fdd469cf..77884e24281d 100644 --- a/arch/powerpc/mm/nohash/book3e_pgtable.c +++ b/arch/powerpc/mm/nohash/book3e_pgtable.c @@ -73,6 +73,7 @@ static void __init *early_alloc_pgtable(unsigned long size) int __ref map_kernel_page(unsigned long ea, unsigned long pa, pgprot_t prot) { pgd_t *pgdp; + p4d_t *p4dp; pud_t *pudp; pmd_t *pmdp; pte_t *ptep; @@ -80,7 +81,8 @@ int __ref map_kernel_page(unsigned long ea, unsigned long pa, pgprot_t prot) BUILD_BUG_ON(TASK_SIZE_USER64 > PGTABLE_RANGE); if (slab_is_available()) { pgdp = pgd_offset_k(ea); - pudp = pud_alloc(&init_mm, pgdp, ea); + p4dp = p4d_offset(pgdp, ea); + pudp = pud_alloc(&init_mm, p4dp, ea); if (!pudp) return -ENOMEM; pmdp = pmd_alloc(&init_mm, pudp, ea); @@ -91,13 +93,12 @@ int __ref map_kernel_page(unsigned long ea, unsigned long pa, pgprot_t prot) return -ENOMEM; } else { pgdp = pgd_offset_k(ea); -#ifndef __PAGETABLE_PUD_FOLDED - if (pgd_none(*pgdp)) { - pudp = early_alloc_pgtable(PUD_TABLE_SIZE); - pgd_populate(&init_mm, pgdp, pudp); + p4dp = p4d_offset(pgdp, ea); + if (p4d_none(*p4dp)) { + pmdp = early_alloc_pgtable(PMD_TABLE_SIZE); + p4d_populate(&init_mm, p4dp, pmdp); } -#endif /* !__PAGETABLE_PUD_FOLDED */ - pudp = pud_offset(pgdp, ea); + pudp = pud_offset(p4dp, ea); if (pud_none(*pudp)) { pmdp = early_alloc_pgtable(PMD_TABLE_SIZE); pud_populate(&init_mm, pudp, pmdp); diff --git a/arch/powerpc/mm/nohash/fsl_booke.c b/arch/powerpc/mm/nohash/fsl_booke.c index b4eb06ceb189..c06dfbb771f4 100644 --- a/arch/powerpc/mm/nohash/fsl_booke.c +++ b/arch/powerpc/mm/nohash/fsl_booke.c @@ -41,7 +41,6 @@ #include <asm/prom.h> #include <asm/io.h> #include <asm/mmu_context.h> -#include <asm/pgtable.h> #include <asm/mmu.h> #include <linux/uaccess.h> #include <asm/smp.h> diff --git a/arch/powerpc/mm/nohash/tlb_low_64e.S b/arch/powerpc/mm/nohash/tlb_low_64e.S index 1f110c3c48fb..d5e2704d0096 100644 --- a/arch/powerpc/mm/nohash/tlb_low_64e.S +++ b/arch/powerpc/mm/nohash/tlb_low_64e.S @@ -6,6 +6,7 @@ * Ben. Herrenschmidt (benh@kernel.crashing.org), IBM Corp. */ +#include <linux/pgtable.h> #include <asm/processor.h> #include <asm/reg.h> #include <asm/page.h> @@ -13,7 +14,6 @@ #include <asm/ppc_asm.h> #include <asm/asm-offsets.h> #include <asm/cputable.h> -#include <asm/pgtable.h> #include <asm/exception-64e.h> #include <asm/ppc-opcode.h> #include <asm/kvm_asm.h> diff --git a/arch/powerpc/mm/pgtable.c b/arch/powerpc/mm/pgtable.c index e3759b69f81b..7e7060c3857a 100644 --- a/arch/powerpc/mm/pgtable.c +++ b/arch/powerpc/mm/pgtable.c @@ -265,6 +265,7 @@ int huge_ptep_set_access_flags(struct vm_area_struct *vma, void assert_pte_locked(struct mm_struct *mm, unsigned long addr) { pgd_t *pgd; + p4d_t *p4d; pud_t *pud; pmd_t *pmd; @@ -272,12 +273,14 @@ void assert_pte_locked(struct mm_struct *mm, unsigned long addr) return; pgd = mm->pgd + pgd_index(addr); BUG_ON(pgd_none(*pgd)); - pud = pud_offset(pgd, addr); + p4d = p4d_offset(pgd, addr); + BUG_ON(p4d_none(*p4d)); + pud = pud_offset(p4d, addr); BUG_ON(pud_none(*pud)); pmd = pmd_offset(pud, addr); /* * khugepaged to collapse normal pages to hugepage, first set - * pmd to none to force page fault/gup to take mmap_sem. After + * pmd to none to force page fault/gup to take mmap_lock. After * pmd is set to none, we do a pte_clear which does this assertion * so if we find pmd none, return. */ @@ -312,12 +315,13 @@ EXPORT_SYMBOL_GPL(vmalloc_to_phys); pte_t *__find_linux_pte(pgd_t *pgdir, unsigned long ea, bool *is_thp, unsigned *hpage_shift) { - pgd_t pgd, *pgdp; + pgd_t *pgdp; + p4d_t p4d, *p4dp; pud_t pud, *pudp; pmd_t pmd, *pmdp; pte_t *ret_pte; hugepd_t *hpdp = NULL; - unsigned pdshift = PGDIR_SHIFT; + unsigned pdshift; if (hpage_shift) *hpage_shift = 0; @@ -325,24 +329,28 @@ pte_t *__find_linux_pte(pgd_t *pgdir, unsigned long ea, if (is_thp) *is_thp = false; - pgdp = pgdir + pgd_index(ea); - pgd = READ_ONCE(*pgdp); /* * Always operate on the local stack value. This make sure the * value don't get updated by a parallel THP split/collapse, * page fault or a page unmap. The return pte_t * is still not * stable. So should be checked there for above conditions. + * Top level is an exception because it is folded into p4d. */ - if (pgd_none(pgd)) + pgdp = pgdir + pgd_index(ea); + p4dp = p4d_offset(pgdp, ea); + p4d = READ_ONCE(*p4dp); + pdshift = P4D_SHIFT; + + if (p4d_none(p4d)) return NULL; - if (pgd_is_leaf(pgd)) { - ret_pte = (pte_t *)pgdp; + if (p4d_is_leaf(p4d)) { + ret_pte = (pte_t *)p4dp; goto out; } - if (is_hugepd(__hugepd(pgd_val(pgd)))) { - hpdp = (hugepd_t *)&pgd; + if (is_hugepd(__hugepd(p4d_val(p4d)))) { + hpdp = (hugepd_t *)&p4d; goto out_huge; } @@ -352,7 +360,7 @@ pte_t *__find_linux_pte(pgd_t *pgdir, unsigned long ea, * irq disabled */ pdshift = PUD_SHIFT; - pudp = pud_offset(&pgd, ea); + pudp = pud_offset(&p4d, ea); pud = READ_ONCE(*pudp); if (pud_none(pud)) diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c index f62de06e3d07..3011266c089f 100644 --- a/arch/powerpc/mm/pgtable_32.c +++ b/arch/powerpc/mm/pgtable_32.c @@ -24,7 +24,6 @@ #include <linux/memblock.h> #include <linux/slab.h> -#include <asm/pgtable.h> #include <asm/pgalloc.h> #include <asm/fixmap.h> #include <asm/setup.h> @@ -63,7 +62,7 @@ int __ref map_kernel_page(unsigned long va, phys_addr_t pa, pgprot_t prot) int err = -ENOMEM; /* Use upper 10 bits of VA to index the first level map */ - pd = pmd_ptr_k(va); + pd = pmd_off_k(va); /* Use middle 10 bits of VA to index the second-level map */ if (likely(slab_is_available())) pg = pte_alloc_kernel(pd, va); diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c index e78832dce7bb..bb43a8c04bee 100644 --- a/arch/powerpc/mm/pgtable_64.c +++ b/arch/powerpc/mm/pgtable_64.c @@ -35,7 +35,6 @@ #include <asm/page.h> #include <asm/prom.h> #include <asm/mmu_context.h> -#include <asm/pgtable.h> #include <asm/mmu.h> #include <asm/smp.h> #include <asm/machdep.h> @@ -101,13 +100,13 @@ EXPORT_SYMBOL(__pte_frag_size_shift); #ifndef __PAGETABLE_PUD_FOLDED /* 4 level page table */ -struct page *pgd_page(pgd_t pgd) +struct page *p4d_page(p4d_t p4d) { - if (pgd_is_leaf(pgd)) { - VM_WARN_ON(!pgd_huge(pgd)); - return pte_page(pgd_pte(pgd)); + if (p4d_is_leaf(p4d)) { + VM_WARN_ON(!p4d_huge(p4d)); + return pte_page(p4d_pte(p4d)); } - return virt_to_page(pgd_page_vaddr(pgd)); + return virt_to_page(p4d_page_vaddr(p4d)); } #endif diff --git a/arch/powerpc/mm/ptdump/8xx.c b/arch/powerpc/mm/ptdump/8xx.c index 9e2d8e847d6e..fabc64721e1a 100644 --- a/arch/powerpc/mm/ptdump/8xx.c +++ b/arch/powerpc/mm/ptdump/8xx.c @@ -5,7 +5,7 @@ * */ #include <linux/kernel.h> -#include <asm/pgtable.h> +#include <linux/pgtable.h> #include "ptdump.h" diff --git a/arch/powerpc/mm/ptdump/bats.c b/arch/powerpc/mm/ptdump/bats.c index d3a5d6b318d1..f7063fd5f06b 100644 --- a/arch/powerpc/mm/ptdump/bats.c +++ b/arch/powerpc/mm/ptdump/bats.c @@ -6,8 +6,8 @@ * This dumps the content of BATS */ +#include <linux/pgtable.h> #include <asm/debugfs.h> -#include <asm/pgtable.h> #include <asm/cpu_has_feature.h> static char *pp_601(int k, int pp) diff --git a/arch/powerpc/mm/ptdump/book3s64.c b/arch/powerpc/mm/ptdump/book3s64.c index 0dfca72cb9bd..14f73868db66 100644 --- a/arch/powerpc/mm/ptdump/book3s64.c +++ b/arch/powerpc/mm/ptdump/book3s64.c @@ -5,7 +5,7 @@ * */ #include <linux/kernel.h> -#include <asm/pgtable.h> +#include <linux/pgtable.h> #include "ptdump.h" diff --git a/arch/powerpc/mm/ptdump/hashpagetable.c b/arch/powerpc/mm/ptdump/hashpagetable.c index b6ed9578382f..a2c33efc7ce8 100644 --- a/arch/powerpc/mm/ptdump/hashpagetable.c +++ b/arch/powerpc/mm/ptdump/hashpagetable.c @@ -15,7 +15,6 @@ #include <linux/mm.h> #include <linux/sched.h> #include <linux/seq_file.h> -#include <asm/pgtable.h> #include <linux/const.h> #include <asm/page.h> #include <asm/pgalloc.h> @@ -417,9 +416,9 @@ static void walk_pmd(struct pg_state *st, pud_t *pud, unsigned long start) } } -static void walk_pud(struct pg_state *st, pgd_t *pgd, unsigned long start) +static void walk_pud(struct pg_state *st, p4d_t *p4d, unsigned long start) { - pud_t *pud = pud_offset(pgd, 0); + pud_t *pud = pud_offset(p4d, 0); unsigned long addr; unsigned int i; @@ -431,6 +430,20 @@ static void walk_pud(struct pg_state *st, pgd_t *pgd, unsigned long start) } } +static void walk_p4d(struct pg_state *st, pgd_t *pgd, unsigned long start) +{ + p4d_t *p4d = p4d_offset(pgd, 0); + unsigned long addr; + unsigned int i; + + for (i = 0; i < PTRS_PER_P4D; i++, p4d++) { + addr = start + i * P4D_SIZE; + if (!p4d_none(*p4d)) + /* p4d exists */ + walk_pud(st, p4d, addr); + } +} + static void walk_pagetables(struct pg_state *st) { pgd_t *pgd = pgd_offset_k(0UL); @@ -445,7 +458,7 @@ static void walk_pagetables(struct pg_state *st) addr = KERN_VIRT_START + i * PGDIR_SIZE; if (!pgd_none(*pgd)) /* pgd exists */ - walk_pud(st, pgd, addr); + walk_p4d(st, pgd, addr); } } diff --git a/arch/powerpc/mm/ptdump/ptdump.c b/arch/powerpc/mm/ptdump/ptdump.c index d92bb8ea229c..1b21369ce82b 100644 --- a/arch/powerpc/mm/ptdump/ptdump.c +++ b/arch/powerpc/mm/ptdump/ptdump.c @@ -19,7 +19,6 @@ #include <linux/sched.h> #include <linux/seq_file.h> #include <asm/fixmap.h> -#include <asm/pgtable.h> #include <linux/const.h> #include <asm/page.h> #include <asm/pgalloc.h> @@ -277,9 +276,9 @@ static void walk_pmd(struct pg_state *st, pud_t *pud, unsigned long start) } } -static void walk_pud(struct pg_state *st, pgd_t *pgd, unsigned long start) +static void walk_pud(struct pg_state *st, p4d_t *p4d, unsigned long start) { - pud_t *pud = pud_offset(pgd, 0); + pud_t *pud = pud_offset(p4d, 0); unsigned long addr; unsigned int i; @@ -304,11 +303,13 @@ static void walk_pagetables(struct pg_state *st) * the hash pagetable. */ for (i = pgd_index(addr); i < PTRS_PER_PGD; i++, pgd++, addr += PGDIR_SIZE) { - if (!pgd_none(*pgd) && !pgd_is_leaf(*pgd)) - /* pgd exists */ - walk_pud(st, pgd, addr); + p4d_t *p4d = p4d_offset(pgd, 0); + + if (!p4d_none(*p4d) && !p4d_is_leaf(*p4d)) + /* p4d exists */ + walk_pud(st, p4d, addr); else - note_page(st, addr, 1, pgd_val(*pgd)); + note_page(st, addr, 1, p4d_val(*p4d)); } } diff --git a/arch/powerpc/mm/ptdump/shared.c b/arch/powerpc/mm/ptdump/shared.c index f7ed2f187cb0..5f67bcf4def7 100644 --- a/arch/powerpc/mm/ptdump/shared.c +++ b/arch/powerpc/mm/ptdump/shared.c @@ -5,7 +5,7 @@ * */ #include <linux/kernel.h> -#include <asm/pgtable.h> +#include <linux/pgtable.h> #include "ptdump.h" diff --git a/arch/powerpc/oprofile/cell/spu_task_sync.c b/arch/powerpc/oprofile/cell/spu_task_sync.c index 0caec3d8d436..df59d0bb121f 100644 --- a/arch/powerpc/oprofile/cell/spu_task_sync.c +++ b/arch/powerpc/oprofile/cell/spu_task_sync.c @@ -332,7 +332,7 @@ get_exec_dcookie_and_offset(struct spu *spu, unsigned int *offsetp, fput(exe_file); } - down_read(&mm->mmap_sem); + mmap_read_lock(mm); for (vma = mm->mmap; vma; vma = vma->vm_next) { if (vma->vm_start > spu_ref || vma->vm_end <= spu_ref) continue; @@ -349,13 +349,13 @@ get_exec_dcookie_and_offset(struct spu *spu, unsigned int *offsetp, *spu_bin_dcookie = fast_get_dcookie(&vma->vm_file->f_path); pr_debug("got dcookie for %pD\n", vma->vm_file); - up_read(&mm->mmap_sem); + mmap_read_unlock(mm); out: return app_cookie; fail_no_image_cookie: - up_read(&mm->mmap_sem); + mmap_read_unlock(mm); printk(KERN_ERR "SPU_PROF: " "%s, line %d: Cannot find dcookie for SPU binary\n", diff --git a/arch/powerpc/perf/callchain.c b/arch/powerpc/perf/callchain.c index dd5051015008..6c028ee513c0 100644 --- a/arch/powerpc/perf/callchain.c +++ b/arch/powerpc/perf/callchain.c @@ -11,7 +11,6 @@ #include <linux/uaccess.h> #include <linux/mm.h> #include <asm/ptrace.h> -#include <asm/pgtable.h> #include <asm/sigcontext.h> #include <asm/ucontext.h> #include <asm/vdso.h> diff --git a/arch/powerpc/perf/callchain_32.c b/arch/powerpc/perf/callchain_32.c index 8aa951003141..f7d888d39cd3 100644 --- a/arch/powerpc/perf/callchain_32.c +++ b/arch/powerpc/perf/callchain_32.c @@ -11,7 +11,6 @@ #include <linux/uaccess.h> #include <linux/mm.h> #include <asm/ptrace.h> -#include <asm/pgtable.h> #include <asm/sigcontext.h> #include <asm/ucontext.h> #include <asm/vdso.h> diff --git a/arch/powerpc/perf/callchain_64.c b/arch/powerpc/perf/callchain_64.c index b63086b663ef..814d1c2c2b9c 100644 --- a/arch/powerpc/perf/callchain_64.c +++ b/arch/powerpc/perf/callchain_64.c @@ -11,7 +11,6 @@ #include <linux/uaccess.h> #include <linux/mm.h> #include <asm/ptrace.h> -#include <asm/pgtable.h> #include <asm/sigcontext.h> #include <asm/ucontext.h> #include <asm/vdso.h> @@ -30,11 +29,9 @@ int read_user_stack_slow(void __user *ptr, void *buf, int nb) unsigned long addr = (unsigned long) ptr; unsigned long offset; struct page *page; - int nrpages; void *kaddr; - nrpages = __get_user_pages_fast(addr, 1, 1, &page); - if (nrpages == 1) { + if (get_user_page_fast_only(addr, FOLL_WRITE, &page)) { kaddr = page_address(page); /* align address to page boundary */ diff --git a/arch/powerpc/platforms/85xx/corenet_generic.c b/arch/powerpc/platforms/85xx/corenet_generic.c index 27ac38f7e1a9..6aa8defb5857 100644 --- a/arch/powerpc/platforms/85xx/corenet_generic.c +++ b/arch/powerpc/platforms/85xx/corenet_generic.c @@ -12,11 +12,11 @@ #include <linux/kdev_t.h> #include <linux/delay.h> #include <linux/interrupt.h> +#include <linux/pgtable.h> #include <asm/time.h> #include <asm/machdep.h> #include <asm/pci-bridge.h> -#include <asm/pgtable.h> #include <asm/ppc-pci.h> #include <mm/mmu_decl.h> #include <asm/prom.h> diff --git a/arch/powerpc/platforms/85xx/mpc85xx_cds.c b/arch/powerpc/platforms/85xx/mpc85xx_cds.c index 915ab6710b93..172d2b7cfeb7 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_cds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_cds.c @@ -22,8 +22,8 @@ #include <linux/interrupt.h> #include <linux/fsl_devices.h> #include <linux/of_platform.h> +#include <linux/pgtable.h> -#include <asm/pgtable.h> #include <asm/page.h> #include <linux/atomic.h> #include <asm/time.h> diff --git a/arch/powerpc/platforms/85xx/qemu_e500.c b/arch/powerpc/platforms/85xx/qemu_e500.c index a43b8c30157c..a4127b0b161f 100644 --- a/arch/powerpc/platforms/85xx/qemu_e500.c +++ b/arch/powerpc/platforms/85xx/qemu_e500.c @@ -13,8 +13,8 @@ #include <linux/kernel.h> #include <linux/of_fdt.h> +#include <linux/pgtable.h> #include <asm/machdep.h> -#include <asm/pgtable.h> #include <asm/time.h> #include <asm/udbg.h> #include <asm/mpic.h> diff --git a/arch/powerpc/platforms/85xx/sbc8548.c b/arch/powerpc/platforms/85xx/sbc8548.c index dd97ef277276..e4acf5ce6b07 100644 --- a/arch/powerpc/platforms/85xx/sbc8548.c +++ b/arch/powerpc/platforms/85xx/sbc8548.c @@ -24,8 +24,8 @@ #include <linux/interrupt.h> #include <linux/fsl_devices.h> #include <linux/of_platform.h> +#include <linux/pgtable.h> -#include <asm/pgtable.h> #include <asm/page.h> #include <linux/atomic.h> #include <asm/time.h> diff --git a/arch/powerpc/platforms/85xx/smp.c b/arch/powerpc/platforms/85xx/smp.c index 48f7d96ae37d..fda108bae95f 100644 --- a/arch/powerpc/platforms/85xx/smp.c +++ b/arch/powerpc/platforms/85xx/smp.c @@ -16,9 +16,9 @@ #include <linux/highmem.h> #include <linux/cpu.h> #include <linux/fsl/guts.h> +#include <linux/pgtable.h> #include <asm/machdep.h> -#include <asm/pgtable.h> #include <asm/page.h> #include <asm/mpic.h> #include <asm/cacheflush.h> diff --git a/arch/powerpc/platforms/86xx/mpc86xx_smp.c b/arch/powerpc/platforms/86xx/mpc86xx_smp.c index dba3aa73c062..87f524e4b09c 100644 --- a/arch/powerpc/platforms/86xx/mpc86xx_smp.c +++ b/arch/powerpc/platforms/86xx/mpc86xx_smp.c @@ -10,10 +10,10 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/delay.h> +#include <linux/pgtable.h> #include <asm/code-patching.h> #include <asm/page.h> -#include <asm/pgtable.h> #include <asm/pci-bridge.h> #include <asm/mpic.h> #include <asm/cacheflush.h> diff --git a/arch/powerpc/platforms/8xx/cpm1.c b/arch/powerpc/platforms/8xx/cpm1.c index 4db4ca2e1222..c58b6f1c40e3 100644 --- a/arch/powerpc/platforms/8xx/cpm1.c +++ b/arch/powerpc/platforms/8xx/cpm1.c @@ -34,7 +34,6 @@ #include <linux/spinlock.h> #include <linux/slab.h> #include <asm/page.h> -#include <asm/pgtable.h> #include <asm/8xx_immap.h> #include <asm/cpm1.h> #include <asm/io.h> diff --git a/arch/powerpc/platforms/8xx/micropatch.c b/arch/powerpc/platforms/8xx/micropatch.c index c80bd7afd6c5..aed4bc75f352 100644 --- a/arch/powerpc/platforms/8xx/micropatch.c +++ b/arch/powerpc/platforms/8xx/micropatch.c @@ -16,7 +16,6 @@ #include <linux/interrupt.h> #include <asm/irq.h> #include <asm/page.h> -#include <asm/pgtable.h> #include <asm/8xx_immap.h> #include <asm/cpm.h> #include <asm/cpm1.h> diff --git a/arch/powerpc/platforms/cell/cbe_regs.c b/arch/powerpc/platforms/cell/cbe_regs.c index 0be212a27254..c2a0678d85db 100644 --- a/arch/powerpc/platforms/cell/cbe_regs.c +++ b/arch/powerpc/platforms/cell/cbe_regs.c @@ -12,9 +12,9 @@ #include <linux/export.h> #include <linux/of_device.h> #include <linux/of_platform.h> +#include <linux/pgtable.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/prom.h> #include <asm/ptrace.h> #include <asm/cell-regs.h> diff --git a/arch/powerpc/platforms/cell/interrupt.c b/arch/powerpc/platforms/cell/interrupt.c index 5927ead4aed2..c0ab62ba6f16 100644 --- a/arch/powerpc/platforms/cell/interrupt.c +++ b/arch/powerpc/platforms/cell/interrupt.c @@ -23,9 +23,9 @@ #include <linux/types.h> #include <linux/ioport.h> #include <linux/kernel_stat.h> +#include <linux/pgtable.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/prom.h> #include <asm/ptrace.h> #include <asm/machdep.h> diff --git a/arch/powerpc/platforms/cell/pervasive.c b/arch/powerpc/platforms/cell/pervasive.c index 6af3a6e600a7..9068edef71f7 100644 --- a/arch/powerpc/platforms/cell/pervasive.c +++ b/arch/powerpc/platforms/cell/pervasive.c @@ -15,11 +15,11 @@ #include <linux/percpu.h> #include <linux/types.h> #include <linux/kallsyms.h> +#include <linux/pgtable.h> #include <asm/io.h> #include <asm/machdep.h> #include <asm/prom.h> -#include <asm/pgtable.h> #include <asm/reg.h> #include <asm/cell-regs.h> #include <asm/cpu_has_feature.h> diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c index 855eedb8d7d7..edefa785d2ef 100644 --- a/arch/powerpc/platforms/cell/setup.c +++ b/arch/powerpc/platforms/cell/setup.c @@ -31,7 +31,6 @@ #include <asm/mmu.h> #include <asm/processor.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/prom.h> #include <asm/rtas.h> #include <asm/pci-bridge.h> diff --git a/arch/powerpc/platforms/cell/smp.c b/arch/powerpc/platforms/cell/smp.c index 85d795d96a27..c855a0aeb49c 100644 --- a/arch/powerpc/platforms/cell/smp.c +++ b/arch/powerpc/platforms/cell/smp.c @@ -21,12 +21,12 @@ #include <linux/err.h> #include <linux/device.h> #include <linux/cpu.h> +#include <linux/pgtable.h> #include <asm/ptrace.h> #include <linux/atomic.h> #include <asm/irq.h> #include <asm/page.h> -#include <asm/pgtable.h> #include <asm/io.h> #include <asm/prom.h> #include <asm/smp.h> diff --git a/arch/powerpc/platforms/cell/spider-pic.c b/arch/powerpc/platforms/cell/spider-pic.c index 026b72c0a452..210785f59271 100644 --- a/arch/powerpc/platforms/cell/spider-pic.c +++ b/arch/powerpc/platforms/cell/spider-pic.c @@ -10,8 +10,8 @@ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/ioport.h> +#include <linux/pgtable.h> -#include <asm/pgtable.h> #include <asm/prom.h> #include <asm/io.h> diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c index e44427c24585..62d90a5e23d1 100644 --- a/arch/powerpc/platforms/cell/spufs/file.c +++ b/arch/powerpc/platforms/cell/spufs/file.c @@ -325,7 +325,7 @@ static vm_fault_t spufs_ps_fault(struct vm_fault *vmf, return VM_FAULT_SIGBUS; /* - * Because we release the mmap_sem, the context may be destroyed while + * Because we release the mmap_lock, the context may be destroyed while * we're in spu_wait. Grab an extra reference so it isn't destroyed * in the meantime. */ @@ -334,8 +334,8 @@ static vm_fault_t spufs_ps_fault(struct vm_fault *vmf, /* * We have to wait for context to be loaded before we have * pages to hand out to the user, but we don't want to wait - * with the mmap_sem held. - * It is possible to drop the mmap_sem here, but then we need + * with the mmap_lock held. + * It is possible to drop the mmap_lock here, but then we need * to return VM_FAULT_NOPAGE because the mappings may have * hanged. */ @@ -343,11 +343,11 @@ static vm_fault_t spufs_ps_fault(struct vm_fault *vmf, goto refault; if (ctx->state == SPU_STATE_SAVED) { - up_read(¤t->mm->mmap_sem); + mmap_read_unlock(current->mm); spu_context_nospu_trace(spufs_ps_fault__sleep, ctx); err = spufs_wait(ctx->run_wq, ctx->state == SPU_STATE_RUNNABLE); spu_context_trace(spufs_ps_fault__wake, ctx, ctx->spu); - down_read(¤t->mm->mmap_sem); + mmap_read_lock(current->mm); } else { area = ctx->spu->problem_phys + ps_offs; ret = vmf_insert_pfn(vmf->vma, vmf->address, diff --git a/arch/powerpc/platforms/chrp/pci.c b/arch/powerpc/platforms/chrp/pci.c index b020c757d2bf..b2c2bf35b76c 100644 --- a/arch/powerpc/platforms/chrp/pci.c +++ b/arch/powerpc/platforms/chrp/pci.c @@ -8,9 +8,9 @@ #include <linux/delay.h> #include <linux/string.h> #include <linux/init.h> +#include <linux/pgtable.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/irq.h> #include <asm/hydra.h> #include <asm/prom.h> diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c index 65a7e01a8f7d..c45435aa5e36 100644 --- a/arch/powerpc/platforms/chrp/setup.c +++ b/arch/powerpc/platforms/chrp/setup.c @@ -34,7 +34,6 @@ #include <linux/timer.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/prom.h> #include <asm/pci-bridge.h> #include <asm/dma.h> diff --git a/arch/powerpc/platforms/chrp/smp.c b/arch/powerpc/platforms/chrp/smp.c index f7bb6cb8d1e3..e30cd2915e54 100644 --- a/arch/powerpc/platforms/chrp/smp.c +++ b/arch/powerpc/platforms/chrp/smp.c @@ -16,12 +16,12 @@ #include <linux/kernel_stat.h> #include <linux/delay.h> #include <linux/spinlock.h> +#include <linux/pgtable.h> #include <asm/ptrace.h> #include <linux/atomic.h> #include <asm/irq.h> #include <asm/page.h> -#include <asm/pgtable.h> #include <asm/sections.h> #include <asm/io.h> #include <asm/prom.h> diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c index 15b2c6eb506d..f7e66a2005b4 100644 --- a/arch/powerpc/platforms/maple/setup.c +++ b/arch/powerpc/platforms/maple/setup.c @@ -42,7 +42,6 @@ #include <asm/processor.h> #include <asm/sections.h> #include <asm/prom.h> -#include <asm/pgtable.h> #include <asm/io.h> #include <asm/pci-bridge.h> #include <asm/iommu.h> diff --git a/arch/powerpc/platforms/maple/time.c b/arch/powerpc/platforms/maple/time.c index 701c4e098fe9..78209bb7629c 100644 --- a/arch/powerpc/platforms/maple/time.c +++ b/arch/powerpc/platforms/maple/time.c @@ -23,7 +23,6 @@ #include <asm/sections.h> #include <asm/prom.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/machdep.h> #include <asm/time.h> diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c index 95fb4feb6ccc..f002b0fa69b8 100644 --- a/arch/powerpc/platforms/powermac/setup.c +++ b/arch/powerpc/platforms/powermac/setup.c @@ -51,7 +51,6 @@ #include <asm/reg.h> #include <asm/sections.h> #include <asm/prom.h> -#include <asm/pgtable.h> #include <asm/io.h> #include <asm/pci-bridge.h> #include <asm/ohare.h> diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c index 9969c07035b6..eb23264910e1 100644 --- a/arch/powerpc/platforms/powermac/smp.c +++ b/arch/powerpc/platforms/powermac/smp.c @@ -30,13 +30,13 @@ #include <linux/hardirq.h> #include <linux/cpu.h> #include <linux/compiler.h> +#include <linux/pgtable.h> #include <asm/ptrace.h> #include <linux/atomic.h> #include <asm/code-patching.h> #include <asm/irq.h> #include <asm/page.h> -#include <asm/pgtable.h> #include <asm/sections.h> #include <asm/io.h> #include <asm/prom.h> diff --git a/arch/powerpc/platforms/powermac/time.c b/arch/powerpc/platforms/powermac/time.c index b36ddee17c87..31d6213a6c8f 100644 --- a/arch/powerpc/platforms/powermac/time.c +++ b/arch/powerpc/platforms/powermac/time.c @@ -28,7 +28,6 @@ #include <asm/sections.h> #include <asm/prom.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/machdep.h> #include <asm/time.h> #include <asm/nvram.h> diff --git a/arch/powerpc/platforms/powernv/vas-fault.c b/arch/powerpc/platforms/powernv/vas-fault.c index 25db70be4c9c..266a6ca5e15e 100644 --- a/arch/powerpc/platforms/powernv/vas-fault.c +++ b/arch/powerpc/platforms/powernv/vas-fault.c @@ -127,7 +127,7 @@ static void update_csb(struct vas_window *window, return; } - use_mm(window->mm); + kthread_use_mm(window->mm); rc = copy_to_user(csb_addr, &csb, sizeof(csb)); /* * User space polls on csb.flags (first byte). So add barrier @@ -139,7 +139,7 @@ static void update_csb(struct vas_window *window, smp_mb(); rc = copy_to_user(csb_addr, &csb, sizeof(u8)); } - unuse_mm(window->mm); + kthread_unuse_mm(window->mm); put_task_struct(tsk); /* Success */ diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c index e4ed5317f117..fd26f3d21d7b 100644 --- a/arch/powerpc/platforms/pseries/lpar.c +++ b/arch/powerpc/platforms/pseries/lpar.c @@ -21,10 +21,10 @@ #include <linux/cpuhotplug.h> #include <linux/workqueue.h> #include <linux/proc_fs.h> +#include <linux/pgtable.h> #include <asm/processor.h> #include <asm/mmu.h> #include <asm/page.h> -#include <asm/pgtable.h> #include <asm/machdep.h> #include <asm/mmu_context.h> #include <asm/iommu.h> diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index 64d18f4bf093..2db8469e475f 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -43,7 +43,6 @@ #include <asm/mmu.h> #include <asm/processor.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/prom.h> #include <asm/rtas.h> #include <asm/pci-bridge.h> diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c index ad61e90032da..6891710833be 100644 --- a/arch/powerpc/platforms/pseries/smp.c +++ b/arch/powerpc/platforms/pseries/smp.c @@ -20,12 +20,12 @@ #include <linux/err.h> #include <linux/device.h> #include <linux/cpu.h> +#include <linux/pgtable.h> #include <asm/ptrace.h> #include <linux/atomic.h> #include <asm/irq.h> #include <asm/page.h> -#include <asm/pgtable.h> #include <asm/io.h> #include <asm/prom.h> #include <asm/smp.h> diff --git a/arch/powerpc/sysdev/cpm2.c b/arch/powerpc/sysdev/cpm2.c index 07718b9a2c99..68538b8329f7 100644 --- a/arch/powerpc/sysdev/cpm2.c +++ b/arch/powerpc/sysdev/cpm2.c @@ -39,7 +39,6 @@ #include <asm/irq.h> #include <asm/mpc8260.h> #include <asm/page.h> -#include <asm/pgtable.h> #include <asm/cpm2.h> #include <asm/rheap.h> #include <asm/fs_pd.h> diff --git a/arch/powerpc/sysdev/fsl_85xx_cache_sram.c b/arch/powerpc/sysdev/fsl_85xx_cache_sram.c index f6c665dac725..a3aeaa5f0f1b 100644 --- a/arch/powerpc/sysdev/fsl_85xx_cache_sram.c +++ b/arch/powerpc/sysdev/fsl_85xx_cache_sram.c @@ -15,7 +15,7 @@ #include <linux/slab.h> #include <linux/err.h> #include <linux/of_platform.h> -#include <asm/pgtable.h> +#include <linux/pgtable.h> #include <asm/fsl_85xx_cache_sram.h> #include "fsl_85xx_cache_ctlr.h" diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index a3a72b780e67..b0426f28946a 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b/arch/powerpc/sysdev/mpic.c @@ -29,11 +29,11 @@ #include <linux/slab.h> #include <linux/syscore_ops.h> #include <linux/ratelimit.h> +#include <linux/pgtable.h> #include <asm/ptrace.h> #include <asm/signal.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/irq.h> #include <asm/machdep.h> #include <asm/mpic.h> diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index 65a7f5af54d1..05014b184a24 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -35,7 +35,6 @@ #include <asm/machdep.h> #include <asm/xmon.h> #include <asm/processor.h> -#include <asm/pgtable.h> #include <asm/mmu.h> #include <asm/mmu_context.h> #include <asm/plpar_wrappers.h> @@ -3213,7 +3212,8 @@ static void show_pte(unsigned long addr) unsigned long tskv = 0; struct task_struct *tsk = NULL; struct mm_struct *mm; - pgd_t *pgdp, *pgdir; + pgd_t *pgdp; + p4d_t *p4dp; pud_t *pudp; pmd_t *pmdp; pte_t *ptep; @@ -3237,28 +3237,26 @@ static void show_pte(unsigned long addr) catch_memory_errors = 1; sync(); - if (mm == &init_mm) { + if (mm == &init_mm) pgdp = pgd_offset_k(addr); - pgdir = pgd_offset_k(0); - } else { + else pgdp = pgd_offset(mm, addr); - pgdir = pgd_offset(mm, 0); - } - if (pgd_none(*pgdp)) { - printf("no linux page table for address\n"); + p4dp = p4d_offset(pgdp, addr); + + if (p4d_none(*p4dp)) { + printf("No valid P4D\n"); return; } - printf("pgd @ 0x%px\n", pgdir); - - if (pgd_is_leaf(*pgdp)) { - format_pte(pgdp, pgd_val(*pgdp)); + if (p4d_is_leaf(*p4dp)) { + format_pte(p4dp, p4d_val(*p4dp)); return; } - printf("pgdp @ 0x%px = 0x%016lx\n", pgdp, pgd_val(*pgdp)); - pudp = pud_offset(pgdp, addr); + printf("p4dp @ 0x%px = 0x%016lx\n", p4dp, p4d_val(*p4dp)); + + pudp = pud_offset(p4dp, addr); if (pud_none(*pudp)) { printf("No valid PUD\n"); |