[v6,17/38] mips: Implement the new page table range API

Message ID	20230802151406.3735276-18-willy@infradead.org (mailing list archive)
State	New
Headers	show Return-Path: <owner-linux-mm@kvack.org> From: "Matthew Wilcox (Oracle)" <willy@infradead.org> To: Andrew Morton <akpm@linux-foundation.org> Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>, linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Mike Rapoport <rppt@kernel.org>, Thomas Bogendoerfer <tsbogend@alpha.franken.de>, linux-mips@vger.kernel.org Subject: [PATCH v6 17/38] mips: Implement the new page table range API Date: Wed, 2 Aug 2023 16:13:45 +0100 Message-Id: <20230802151406.3735276-18-willy@infradead.org> In-Reply-To: <20230802151406.3735276-1-willy@infradead.org> References: <20230802151406.3735276-1-willy@infradead.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: owner-linux-mm@kvack.org Precedence: bulk
Series	New page table range API \| expand [v6,00/38] New page table range API [v6,01/38] minmax: Add in_range() macro [v6,02/38] mm: Convert page_table_check_pte_set() to page_table_check_ptes_set() [v6,03/38] mm: Add generic flush_icache_pages() and documentation [v6,04/38] mm: Add folio_flush_mapping() [v6,05/38] mm: Remove ARCH_IMPLEMENTS_FLUSH_DCACHE_FOLIO [v6,06/38] mm: Add default definition of set_ptes() [v6,07/38] alpha: Implement the new page table range API [v6,08/38] arc: Implement the new page table range API [v6,09/38] arm: Implement the new page table range API [v6,10/38] arm64: Implement the new page table range API [v6,11/38] csky: Implement the new page table range API [v6,12/38] hexagon: Implement the new page table range API [v6,13/38] ia64: Implement the new page table range API [v6,14/38] loongarch: Implement the new page table range API [v6,15/38] m68k: Implement the new page table range API [v6,16/38] microblaze: Implement the new page table range API [v6,17/38] mips: Implement the new page table range API [v6,18/38] nios2: Implement the new page table range API [v6,19/38] openrisc: Implement the new page table range API [v6,20/38] parisc: Implement the new page table range API [v6,21/38] powerpc: Implement the new page table range API [v6,22/38] riscv: Implement the new page table range API [v6,23/38] s390: Implement the new page table range API [v6,24/38] sh: Implement the new page table range API [v6,25/38] sparc32: Implement the new page table range API [v6,26/38] sparc64: Implement the new page table range API [v6,27/38] um: Implement the new page table range API [v6,28/38] x86: Implement the new page table range API [v6,29/38] xtensa: Implement the new page table range API [v6,30/38] mm: Remove page_mapping_file() [v6,31/38] mm: Rationalise flush_icache_pages() and flush_icache_page() [v6,32/38] mm: Tidy up set_ptes definition [v6,33/38] mm: Use flush_icache_pages() in do_set_pmd() [v6,34/38] filemap: Add filemap_map_folio_range() [v6,35/38] rmap: add folio_add_file_rmap_range() [v6,36/38] mm: Convert do_set_pte() to set_pte_range() [v6,37/38] filemap: Batch PTE mappings [v6,38/38] mm: Call update_mmu_cache_range() in more page fault handling paths

diff --git a/arch/mips/bcm47xx/prom.c b/arch/mips/bcm47xx/prom.c index a9bea411d928..99a1ba5394e0 100644 --- a/arch/mips/bcm47xx/prom.c +++ b/arch/mips/bcm47xx/prom.c @@ -116,7 +116,7 @@ void __init prom_init(void) #if defined(CONFIG_BCM47XX_BCMA) && defined(CONFIG_HIGHMEM) #define EXTVBASE 0xc0000000 -#define ENTRYLO(x) ((pte_val(pfn_pte((x) >> _PFN_SHIFT, PAGE_KERNEL_UNCACHED)) >> 6) | 1) +#define ENTRYLO(x) ((pte_val(pfn_pte((x) >> PFN_PTE_SHIFT, PAGE_KERNEL_UNCACHED)) >> 6) | 1) #include <asm/tlbflush.h> diff --git a/arch/mips/include/asm/cacheflush.h b/arch/mips/include/asm/cacheflush.h index d8d3f80f9fc0..0f389bc7cb90 100644 --- a/arch/mips/include/asm/cacheflush.h +++ b/arch/mips/include/asm/cacheflush.h @@ -36,12 +36,12 @@ */ #define PG_dcache_dirty PG_arch_1 -#define Page_dcache_dirty(page) \ - test_bit(PG_dcache_dirty, &(page)->flags) -#define SetPageDcacheDirty(page) \ - set_bit(PG_dcache_dirty, &(page)->flags) -#define ClearPageDcacheDirty(page) \ - clear_bit(PG_dcache_dirty, &(page)->flags) +#define folio_test_dcache_dirty(folio) \ + test_bit(PG_dcache_dirty, &(folio)->flags) +#define folio_set_dcache_dirty(folio) \ + set_bit(PG_dcache_dirty, &(folio)->flags) +#define folio_clear_dcache_dirty(folio) \ + clear_bit(PG_dcache_dirty, &(folio)->flags) extern void (*flush_cache_all)(void); extern void (*__flush_cache_all)(void); @@ -50,15 +50,24 @@ extern void (*flush_cache_mm)(struct mm_struct *mm); extern void (*flush_cache_range)(struct vm_area_struct *vma, unsigned long start, unsigned long end); extern void (*flush_cache_page)(struct vm_area_struct *vma, unsigned long page, unsigned long pfn); -extern void __flush_dcache_page(struct page *page); +extern void __flush_dcache_pages(struct page *page, unsigned int nr); #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 +static inline void flush_dcache_folio(struct folio *folio) +{ + if (cpu_has_dc_aliases) + __flush_dcache_pages(&folio->page, folio_nr_pages(folio)); + else if (!cpu_has_ic_fills_f_dc) + folio_set_dcache_dirty(folio); +} +#define flush_dcache_folio flush_dcache_folio + static inline void flush_dcache_page(struct page *page) { if (cpu_has_dc_aliases) - __flush_dcache_page(page); + __flush_dcache_pages(page, 1); else if (!cpu_has_ic_fills_f_dc) - SetPageDcacheDirty(page); + folio_set_dcache_dirty(page_folio(page)); } #define flush_dcache_mmap_lock(mapping) do { } while (0) @@ -73,10 +82,11 @@ static inline void flush_anon_page(struct vm_area_struct *vma, __flush_anon_page(page, vmaddr); } -static inline void flush_icache_page(struct vm_area_struct *vma, - struct page *page) +static inline void flush_icache_pages(struct vm_area_struct *vma, + struct page *page, unsigned int nr) { } +#define flush_icache_page(vma, page) flush_icache_pages(vma, page, 1) extern void (*flush_icache_range)(unsigned long start, unsigned long end); extern void (*local_flush_icache_range)(unsigned long start, unsigned long end); diff --git a/arch/mips/include/asm/pgtable-32.h b/arch/mips/include/asm/pgtable-32.h index ba0016709a1a..0e196650f4f4 100644 --- a/arch/mips/include/asm/pgtable-32.h +++ b/arch/mips/include/asm/pgtable-32.h @@ -153,7 +153,7 @@ static inline void pmd_clear(pmd_t *pmdp) #if defined(CONFIG_XPA) #define MAX_POSSIBLE_PHYSMEM_BITS 40 -#define pte_pfn(x) (((unsigned long)((x).pte_high >> _PFN_SHIFT)) | (unsigned long)((x).pte_low << _PAGE_PRESENT_SHIFT)) +#define pte_pfn(x) (((unsigned long)((x).pte_high >> PFN_PTE_SHIFT)) | (unsigned long)((x).pte_low << _PAGE_PRESENT_SHIFT)) static inline pte_t pfn_pte(unsigned long pfn, pgprot_t prot) { @@ -161,7 +161,7 @@ pfn_pte(unsigned long pfn, pgprot_t prot) pte.pte_low = (pfn >> _PAGE_PRESENT_SHIFT) | (pgprot_val(prot) & ~_PFNX_MASK); - pte.pte_high = (pfn << _PFN_SHIFT) | + pte.pte_high = (pfn << PFN_PTE_SHIFT) | (pgprot_val(prot) & ~_PFN_MASK); return pte; } @@ -184,9 +184,9 @@ static inline pte_t pfn_pte(unsigned long pfn, pgprot_t prot) #else #define MAX_POSSIBLE_PHYSMEM_BITS 32 -#define pte_pfn(x) ((unsigned long)((x).pte >> _PFN_SHIFT)) -#define pfn_pte(pfn, prot) __pte(((unsigned long long)(pfn) << _PFN_SHIFT) | pgprot_val(prot)) -#define pfn_pmd(pfn, prot) __pmd(((unsigned long long)(pfn) << _PFN_SHIFT) | pgprot_val(prot)) +#define pte_pfn(x) ((unsigned long)((x).pte >> PFN_PTE_SHIFT)) +#define pfn_pte(pfn, prot) __pte(((unsigned long long)(pfn) << PFN_PTE_SHIFT) | pgprot_val(prot)) +#define pfn_pmd(pfn, prot) __pmd(((unsigned long long)(pfn) << PFN_PTE_SHIFT) | pgprot_val(prot)) #endif /* defined(CONFIG_PHYS_ADDR_T_64BIT) && defined(CONFIG_CPU_MIPS32) */ #define pte_page(x) pfn_to_page(pte_pfn(x)) diff --git a/arch/mips/include/asm/pgtable-64.h b/arch/mips/include/asm/pgtable-64.h index 98e24e3e7f2b..20ca48c1b606 100644 --- a/arch/mips/include/asm/pgtable-64.h +++ b/arch/mips/include/asm/pgtable-64.h @@ -298,9 +298,9 @@ static inline void pud_clear(pud_t *pudp) #define pte_page(x) pfn_to_page(pte_pfn(x)) -#define pte_pfn(x) ((unsigned long)((x).pte >> _PFN_SHIFT)) -#define pfn_pte(pfn, prot) __pte(((pfn) << _PFN_SHIFT) | pgprot_val(prot)) -#define pfn_pmd(pfn, prot) __pmd(((pfn) << _PFN_SHIFT) | pgprot_val(prot)) +#define pte_pfn(x) ((unsigned long)((x).pte >> PFN_PTE_SHIFT)) +#define pfn_pte(pfn, prot) __pte(((pfn) << PFN_PTE_SHIFT) | pgprot_val(prot)) +#define pfn_pmd(pfn, prot) __pmd(((pfn) << PFN_PTE_SHIFT) | pgprot_val(prot)) #ifndef __PAGETABLE_PMD_FOLDED static inline pmd_t *pud_pgtable(pud_t pud) diff --git a/arch/mips/include/asm/pgtable-bits.h b/arch/mips/include/asm/pgtable-bits.h index 1c576679aa87..421e78c30253 100644 --- a/arch/mips/include/asm/pgtable-bits.h +++ b/arch/mips/include/asm/pgtable-bits.h @@ -182,10 +182,10 @@ enum pgtable_bits { #if defined(CONFIG_CPU_R3K_TLB) # define _CACHE_UNCACHED (1 << _CACHE_UNCACHED_SHIFT) # define _CACHE_MASK _CACHE_UNCACHED -# define _PFN_SHIFT PAGE_SHIFT +# define PFN_PTE_SHIFT PAGE_SHIFT #else # define _CACHE_MASK (7 << _CACHE_SHIFT) -# define _PFN_SHIFT (PAGE_SHIFT - 12 + _CACHE_SHIFT + 3) +# define PFN_PTE_SHIFT (PAGE_SHIFT - 12 + _CACHE_SHIFT + 3) #endif #ifndef _PAGE_NO_EXEC @@ -195,7 +195,7 @@ enum pgtable_bits { #define _PAGE_SILENT_READ _PAGE_VALID #define _PAGE_SILENT_WRITE _PAGE_DIRTY -#define _PFN_MASK (~((1 << (_PFN_SHIFT)) - 1)) +#define _PFN_MASK (~((1 << (PFN_PTE_SHIFT)) - 1)) /* * The final layouts of the PTE bits are: diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h index 574fa14ac8b2..cbb93a834f52 100644 --- a/arch/mips/include/asm/pgtable.h +++ b/arch/mips/include/asm/pgtable.h @@ -66,7 +66,7 @@ extern void paging_init(void); static inline unsigned long pmd_pfn(pmd_t pmd) { - return pmd_val(pmd) >> _PFN_SHIFT; + return pmd_val(pmd) >> PFN_PTE_SHIFT; } #ifndef CONFIG_MIPS_HUGE_TLB_SUPPORT @@ -105,9 +105,6 @@ do { \ } \ } while(0) -static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, - pte_t *ptep, pte_t pteval); - #if defined(CONFIG_PHYS_ADDR_T_64BIT) && defined(CONFIG_CPU_MIPS32) #ifdef CONFIG_XPA @@ -157,7 +154,7 @@ static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *pt null.pte_low = null.pte_high = _PAGE_GLOBAL; } - set_pte_at(mm, addr, ptep, null); + set_pte(ptep, null); htw_start(); } #else @@ -196,28 +193,41 @@ static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *pt #if !defined(CONFIG_CPU_R3K_TLB) /* Preserve global status for the pair */ if (pte_val(*ptep_buddy(ptep)) & _PAGE_GLOBAL) - set_pte_at(mm, addr, ptep, __pte(_PAGE_GLOBAL)); + set_pte(ptep, __pte(_PAGE_GLOBAL)); else #endif - set_pte_at(mm, addr, ptep, __pte(0)); + set_pte(ptep, __pte(0)); htw_start(); } #endif -static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, - pte_t *ptep, pte_t pteval) +static inline void set_ptes(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pte, unsigned int nr) { + unsigned int i; + bool do_sync = false; - if (!pte_present(pteval)) - goto cache_sync_done; + for (i = 0; i < nr; i++) { + if (!pte_present(pte)) + continue; + if (pte_present(ptep[i]) && + (pte_pfn(ptep[i]) == pte_pfn(pte))) + continue; + do_sync = true; + } - if (pte_present(*ptep) && (pte_pfn(*ptep) == pte_pfn(pteval))) - goto cache_sync_done; + if (do_sync) + __update_cache(addr, pte); - __update_cache(addr, pteval); -cache_sync_done: - set_pte(ptep, pteval); + for (;;) { + set_pte(ptep, pte); + if (--nr == 0) + break; + ptep++; + pte = __pte(pte_val(pte) + (1UL << PFN_PTE_SHIFT)); + } } +#define set_ptes set_ptes /* * (pmds are folded into puds so this doesn't get actually called, @@ -486,7 +496,7 @@ static inline int ptep_set_access_flags(struct vm_area_struct *vma, pte_t entry, int dirty) { if (!pte_same(*ptep, entry)) - set_pte_at(vma->vm_mm, address, ptep, entry); + set_pte(ptep, entry); /* * update_mmu_cache will unconditionally execute, handling both * the case that the PTE changed and the spurious fault case. @@ -568,12 +578,21 @@ static inline pte_t pte_swp_clear_exclusive(pte_t pte) extern void __update_tlb(struct vm_area_struct *vma, unsigned long address, pte_t pte); -static inline void update_mmu_cache(struct vm_area_struct *vma, - unsigned long address, pte_t *ptep) -{ - pte_t pte = *ptep; - __update_tlb(vma, address, pte); +static inline void update_mmu_cache_range(struct vm_fault *vmf, + struct vm_area_struct *vma, unsigned long address, + pte_t *ptep, unsigned int nr) +{ + for (;;) { + pte_t pte = *ptep; + __update_tlb(vma, address, pte); + if (--nr == 0) + break; + ptep++; + address += PAGE_SIZE; + } } +#define update_mmu_cache(vma, address, ptep) \ + update_mmu_cache_range(NULL, vma, address, ptep, 1) #define __HAVE_ARCH_UPDATE_MMU_TLB #define update_mmu_tlb update_mmu_cache diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index 4b6554b48923..187d1c16361c 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -568,13 +568,14 @@ static inline void local_r4k_flush_cache_page(void *args) if ((mm == current->active_mm) && (pte_val(*ptep) & _PAGE_VALID)) vaddr = NULL; else { + struct folio *folio = page_folio(page); /* * Use kmap_coherent or kmap_atomic to do flushes for * another ASID than the current one. */ map_coherent = (cpu_has_dc_aliases && - page_mapcount(page) && - !Page_dcache_dirty(page)); + folio_mapped(folio) && + !folio_test_dcache_dirty(folio)); if (map_coherent) vaddr = kmap_coherent(page, addr); else diff --git a/arch/mips/mm/cache.c b/arch/mips/mm/cache.c index d21cf8c6cf6c..02042100e267 100644 --- a/arch/mips/mm/cache.c +++ b/arch/mips/mm/cache.c @@ -99,13 +99,15 @@ SYSCALL_DEFINE3(cacheflush, unsigned long, addr, unsigned long, bytes, return 0; } -void __flush_dcache_page(struct page *page) +void __flush_dcache_pages(struct page *page, unsigned int nr) { - struct address_space *mapping = page_mapping_file(page); + struct folio *folio = page_folio(page); + struct address_space *mapping = folio_flush_mapping(folio); unsigned long addr; + unsigned int i; if (mapping && !mapping_mapped(mapping)) { - SetPageDcacheDirty(page); + folio_set_dcache_dirty(folio); return; } @@ -114,25 +116,21 @@ void __flush_dcache_page(struct page *page) * case is for exec env/arg pages and those are %99 certainly going to * get faulted into the tlb (and thus flushed) anyways. */ - if (PageHighMem(page)) - addr = (unsigned long)kmap_atomic(page); - else - addr = (unsigned long)page_address(page); - - flush_data_cache_page(addr); - - if (PageHighMem(page)) - kunmap_atomic((void *)addr); + for (i = 0; i < nr; i++) { + addr = (unsigned long)kmap_local_page(page + i); + flush_data_cache_page(addr); + kunmap_local((void *)addr); + } } - -EXPORT_SYMBOL(__flush_dcache_page); +EXPORT_SYMBOL(__flush_dcache_pages); void __flush_anon_page(struct page *page, unsigned long vmaddr) { unsigned long addr = (unsigned long) page_address(page); + struct folio *folio = page_folio(page); if (pages_do_alias(addr, vmaddr)) { - if (page_mapcount(page) && !Page_dcache_dirty(page)) { + if (folio_mapped(folio) && !folio_test_dcache_dirty(folio)) { void *kaddr; kaddr = kmap_coherent(page, vmaddr); @@ -147,27 +145,29 @@ EXPORT_SYMBOL(__flush_anon_page); void __update_cache(unsigned long address, pte_t pte) { - struct page *page; + struct folio *folio; unsigned long pfn, addr; int exec = !pte_no_exec(pte) && !cpu_has_ic_fills_f_dc; + unsigned int i; pfn = pte_pfn(pte); if (unlikely(!pfn_valid(pfn))) return; - page = pfn_to_page(pfn); - if (Page_dcache_dirty(page)) { - if (PageHighMem(page)) - addr = (unsigned long)kmap_atomic(page); - else - addr = (unsigned long)page_address(page); - - if (exec || pages_do_alias(addr, address & PAGE_MASK)) - flush_data_cache_page(addr); - if (PageHighMem(page)) - kunmap_atomic((void *)addr); + folio = page_folio(pfn_to_page(pfn)); + address &= PAGE_MASK; + address -= offset_in_folio(folio, pfn << PAGE_SHIFT); + + if (folio_test_dcache_dirty(folio)) { + for (i = 0; i < folio_nr_pages(folio); i++) { + addr = (unsigned long)kmap_local_folio(folio, i); - ClearPageDcacheDirty(page); + if (exec || pages_do_alias(addr, address)) + flush_data_cache_page(addr); + kunmap_local((void *)addr); + address += PAGE_SIZE; + } + folio_clear_dcache_dirty(folio); } } diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index 5a8002839550..5dcb525a8995 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -88,7 +88,7 @@ static void *__kmap_pgprot(struct page *page, unsigned long addr, pgprot_t prot) pte_t pte; int tlbidx; - BUG_ON(Page_dcache_dirty(page)); + BUG_ON(folio_test_dcache_dirty(page_folio(page))); preempt_disable(); pagefault_disable(); @@ -169,11 +169,12 @@ void kunmap_coherent(void) void copy_user_highpage(struct page *to, struct page *from, unsigned long vaddr, struct vm_area_struct *vma) { + struct folio *src = page_folio(from); void *vfrom, *vto; vto = kmap_atomic(to); if (cpu_has_dc_aliases && - page_mapcount(from) && !Page_dcache_dirty(from)) { + folio_mapped(src) && !folio_test_dcache_dirty(src)) { vfrom = kmap_coherent(from, vaddr); copy_page(vto, vfrom); kunmap_coherent(); @@ -194,15 +195,17 @@ void copy_to_user_page(struct vm_area_struct *vma, struct page *page, unsigned long vaddr, void *dst, const void *src, unsigned long len) { + struct folio *folio = page_folio(page); + if (cpu_has_dc_aliases && - page_mapcount(page) && !Page_dcache_dirty(page)) { + folio_mapped(folio) && !folio_test_dcache_dirty(folio)) { void *vto = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK); memcpy(vto, src, len); kunmap_coherent(); } else { memcpy(dst, src, len); if (cpu_has_dc_aliases) - SetPageDcacheDirty(page); + folio_set_dcache_dirty(folio); } if (vma->vm_flags & VM_EXEC) flush_cache_page(vma, vaddr, page_to_pfn(page)); @@ -212,15 +215,17 @@ void copy_from_user_page(struct vm_area_struct *vma, struct page *page, unsigned long vaddr, void *dst, const void *src, unsigned long len) { + struct folio *folio = page_folio(page); + if (cpu_has_dc_aliases && - page_mapcount(page) && !Page_dcache_dirty(page)) { + folio_mapped(folio) && !folio_test_dcache_dirty(folio)) { void *vfrom = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK); memcpy(dst, vfrom, len); kunmap_coherent(); } else { memcpy(dst, src, len); if (cpu_has_dc_aliases) - SetPageDcacheDirty(page); + folio_set_dcache_dirty(folio); } } EXPORT_SYMBOL_GPL(copy_from_user_page); @@ -448,10 +453,10 @@ static inline void __init mem_init_free_highmem(void) void __init mem_init(void) { /* - * When _PFN_SHIFT is greater than PAGE_SHIFT we won't have enough PTE + * When PFN_PTE_SHIFT is greater than PAGE_SHIFT we won't have enough PTE * bits to hold a full 32b physical address on MIPS32 systems. */ - BUILD_BUG_ON(IS_ENABLED(CONFIG_32BIT) && (_PFN_SHIFT > PAGE_SHIFT)); + BUILD_BUG_ON(IS_ENABLED(CONFIG_32BIT) && (PFN_PTE_SHIFT > PAGE_SHIFT)); #ifdef CONFIG_HIGHMEM max_mapnr = highend_pfn ? highend_pfn : max_low_pfn; diff --git a/arch/mips/mm/pgtable-32.c b/arch/mips/mm/pgtable-32.c index f57fb69472f8..84dd5136d53a 100644 --- a/arch/mips/mm/pgtable-32.c +++ b/arch/mips/mm/pgtable-32.c @@ -35,7 +35,7 @@ pmd_t mk_pmd(struct page *page, pgprot_t prot) { pmd_t pmd; - pmd_val(pmd) = (page_to_pfn(page) << _PFN_SHIFT) | pgprot_val(prot); + pmd_val(pmd) = (page_to_pfn(page) << PFN_PTE_SHIFT) | pgprot_val(prot); return pmd; } diff --git a/arch/mips/mm/pgtable-64.c b/arch/mips/mm/pgtable-64.c index b4386a0e2ef8..c76d21f7dffb 100644 --- a/arch/mips/mm/pgtable-64.c +++ b/arch/mips/mm/pgtable-64.c @@ -93,7 +93,7 @@ pmd_t mk_pmd(struct page *page, pgprot_t prot) { pmd_t pmd; - pmd_val(pmd) = (page_to_pfn(page) << _PFN_SHIFT) | pgprot_val(prot); + pmd_val(pmd) = (page_to_pfn(page) << PFN_PTE_SHIFT) | pgprot_val(prot); return pmd; } diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index 8d514a9082c6..b4e1c783e617 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -253,7 +253,7 @@ static void output_pgtable_bits_defines(void) pr_define("_PAGE_GLOBAL_SHIFT %d\n", _PAGE_GLOBAL_SHIFT); pr_define("_PAGE_VALID_SHIFT %d\n", _PAGE_VALID_SHIFT); pr_define("_PAGE_DIRTY_SHIFT %d\n", _PAGE_DIRTY_SHIFT); - pr_define("_PFN_SHIFT %d\n", _PFN_SHIFT); + pr_define("PFN_PTE_SHIFT %d\n", PFN_PTE_SHIFT); pr_debug("\n"); }

[v6,17/38] mips: Implement the new page table range API

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