From: "Aneesh Kumar K.V" <aneesh.ku...@linux.vnet.ibm.com> This patch move the common code to 32/64 bit headers. We will later change the 64 bit version to support smaller PTE fragments
Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com> --- arch/powerpc/include/asm/pgalloc-32.h | 45 ++++++++++++++++++++++++++++++++ arch/powerpc/include/asm/pgalloc-64.h | 46 +++++++++++++++++++++++++++++++++ arch/powerpc/include/asm/pgalloc.h | 46 +-------------------------------- 3 files changed, 92 insertions(+), 45 deletions(-) diff --git a/arch/powerpc/include/asm/pgalloc-32.h b/arch/powerpc/include/asm/pgalloc-32.h index 580cf73..27b2386 100644 --- a/arch/powerpc/include/asm/pgalloc-32.h +++ b/arch/powerpc/include/asm/pgalloc-32.h @@ -37,6 +37,17 @@ extern void pgd_free(struct mm_struct *mm, pgd_t *pgd); extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr); extern pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr); +static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) +{ + free_page((unsigned long)pte); +} + +static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage) +{ + pgtable_page_dtor(ptepage); + __free_page(ptepage); +} + static inline void pgtable_free(void *table, unsigned index_size) { BUG_ON(index_size); /* 32-bit doesn't use this */ @@ -45,4 +56,38 @@ static inline void pgtable_free(void *table, unsigned index_size) #define check_pgt_cache() do { } while (0) +#ifdef CONFIG_SMP +static inline void pgtable_free_tlb(struct mmu_gather *tlb, + void *table, int shift) +{ + unsigned long pgf = (unsigned long)table; + BUG_ON(shift > MAX_PGTABLE_INDEX_SIZE); + pgf |= shift; + tlb_remove_table(tlb, (void *)pgf); +} + +static inline void __tlb_remove_table(void *_table) +{ + void *table = (void *)((unsigned long)_table & ~MAX_PGTABLE_INDEX_SIZE); + unsigned shift = (unsigned long)_table & MAX_PGTABLE_INDEX_SIZE; + + pgtable_free(table, shift); +} +#else +static inline void pgtable_free_tlb(struct mmu_gather *tlb, + void *table, int shift) +{ + pgtable_free(table, shift); +} +#endif + +static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table, + unsigned long address) +{ + struct page *page = page_address(table); + + tlb_flush_pgtable(tlb, address); + pgtable_page_dtor(page); + pgtable_free_tlb(tlb, page, 0); +} #endif /* _ASM_POWERPC_PGALLOC_32_H */ diff --git a/arch/powerpc/include/asm/pgalloc-64.h b/arch/powerpc/include/asm/pgalloc-64.h index 292725c..8743107 100644 --- a/arch/powerpc/include/asm/pgalloc-64.h +++ b/arch/powerpc/include/asm/pgalloc-64.h @@ -130,6 +130,52 @@ static inline void pgtable_free(void *table, unsigned index_size) } } +static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) +{ + free_page((unsigned long)pte); +} + +static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage) +{ + pgtable_page_dtor(ptepage); + __free_page(ptepage); +} + +#ifdef CONFIG_SMP +static inline void pgtable_free_tlb(struct mmu_gather *tlb, + void *table, int shift) +{ + unsigned long pgf = (unsigned long)table; + BUG_ON(shift > MAX_PGTABLE_INDEX_SIZE); + pgf |= shift; + tlb_remove_table(tlb, (void *)pgf); +} + +static inline void __tlb_remove_table(void *_table) +{ + void *table = (void *)((unsigned long)_table & ~MAX_PGTABLE_INDEX_SIZE); + unsigned shift = (unsigned long)_table & MAX_PGTABLE_INDEX_SIZE; + + pgtable_free(table, shift); +} +#else +static inline void pgtable_free_tlb(struct mmu_gather *tlb, + void *table, int shift) +{ + pgtable_free(table, shift); +} +#endif + +static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table, + unsigned long address) +{ + struct page *page = page_address(table); + + tlb_flush_pgtable(tlb, address); + pgtable_page_dtor(page); + pgtable_free_tlb(tlb, page, 0); +} + #define __pmd_free_tlb(tlb, pmd, addr) \ pgtable_free_tlb(tlb, pmd, PMD_INDEX_SIZE) #ifndef CONFIG_PPC_64K_PAGES diff --git a/arch/powerpc/include/asm/pgalloc.h b/arch/powerpc/include/asm/pgalloc.h index bf301ac..e9a9f60 100644 --- a/arch/powerpc/include/asm/pgalloc.h +++ b/arch/powerpc/include/asm/pgalloc.h @@ -3,6 +3,7 @@ #ifdef __KERNEL__ #include <linux/mm.h> +#include <asm-generic/tlb.h> #ifdef CONFIG_PPC_BOOK3E extern void tlb_flush_pgtable(struct mmu_gather *tlb, unsigned long address); @@ -13,56 +14,11 @@ static inline void tlb_flush_pgtable(struct mmu_gather *tlb, } #endif /* !CONFIG_PPC_BOOK3E */ -static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) -{ - free_page((unsigned long)pte); -} - -static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage) -{ - pgtable_page_dtor(ptepage); - __free_page(ptepage); -} - #ifdef CONFIG_PPC64 #include <asm/pgalloc-64.h> #else #include <asm/pgalloc-32.h> #endif -#ifdef CONFIG_SMP -struct mmu_gather; -extern void tlb_remove_table(struct mmu_gather *, void *); - -static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, int shift) -{ - unsigned long pgf = (unsigned long)table; - BUG_ON(shift > MAX_PGTABLE_INDEX_SIZE); - pgf |= shift; - tlb_remove_table(tlb, (void *)pgf); -} - -static inline void __tlb_remove_table(void *_table) -{ - void *table = (void *)((unsigned long)_table & ~MAX_PGTABLE_INDEX_SIZE); - unsigned shift = (unsigned long)_table & MAX_PGTABLE_INDEX_SIZE; - - pgtable_free(table, shift); -} -#else /* CONFIG_SMP */ -static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, unsigned shift) -{ - pgtable_free(table, shift); -} -#endif /* !CONFIG_SMP */ - -static inline void __pte_free_tlb(struct mmu_gather *tlb, struct page *ptepage, - unsigned long address) -{ - tlb_flush_pgtable(tlb, address); - pgtable_page_dtor(ptepage); - pgtable_free_tlb(tlb, page_address(ptepage), 0); -} - #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_PGALLOC_H */ -- 1.7.10 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev