[PATCH V3 29/30] powerpc/mm: Hash linux abstraction for tlbflush routines
From: Aneesh Kumar K.V <hidden>
Date: 2016-02-18 16:52:24
Also in:
linux-mm
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
Signed-off-by: Aneesh Kumar K.V <redacted> --- arch/powerpc/include/asm/book3s/64/tlbflush-hash.h | 28 ++++++----- arch/powerpc/include/asm/book3s/64/tlbflush.h | 56 ++++++++++++++++++++++ arch/powerpc/include/asm/tlbflush.h | 2 +- arch/powerpc/mm/tlb_hash64.c | 2 +- 4 files changed, 73 insertions(+), 15 deletions(-) create mode 100644 arch/powerpc/include/asm/book3s/64/tlbflush.h
diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush-hash.h b/arch/powerpc/include/asm/book3s/64/tlbflush-hash.h
index 1b753f96b374..ddce8477fe0c 100644
--- a/arch/powerpc/include/asm/book3s/64/tlbflush-hash.h
+++ b/arch/powerpc/include/asm/book3s/64/tlbflush-hash.h@@ -52,40 +52,42 @@ extern void flush_hash_range(unsigned long number, int local); extern void flush_hash_hugepage(unsigned long vsid, unsigned long addr, pmd_t *pmdp, unsigned int psize, int ssize, unsigned long flags); - -static inline void local_flush_tlb_mm(struct mm_struct *mm) +static inline void local_flush_hltlb_mm(struct mm_struct *mm) { } -static inline void flush_tlb_mm(struct mm_struct *mm) +static inline void flush_hltlb_mm(struct mm_struct *mm) { } -static inline void local_flush_tlb_page(struct vm_area_struct *vma, - unsigned long vmaddr) +static inline void local_flush_hltlb_page(struct vm_area_struct *vma, + unsigned long vmaddr) { } -static inline void flush_tlb_page(struct vm_area_struct *vma, - unsigned long vmaddr) +static inline void flush_hltlb_page(struct vm_area_struct *vma, + unsigned long vmaddr) { } -static inline void flush_tlb_page_nohash(struct vm_area_struct *vma, - unsigned long vmaddr) +static inline void flush_hltlb_page_nohash(struct vm_area_struct *vma, + unsigned long vmaddr) { } -static inline void flush_tlb_range(struct vm_area_struct *vma, - unsigned long start, unsigned long end) +static inline void flush_hltlb_range(struct vm_area_struct *vma, + unsigned long start, unsigned long end) { } -static inline void flush_tlb_kernel_range(unsigned long start, - unsigned long end) +static inline void flush_hltlb_kernel_range(unsigned long start, + unsigned long end) { } + +struct mmu_gather; +extern void hltlb_flush(struct mmu_gather *tlb); /* Private function for use by PCI IO mapping code */ extern void __flush_hash_table_range(struct mm_struct *mm, unsigned long start, unsigned long end);
diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush.h b/arch/powerpc/include/asm/book3s/64/tlbflush.h
new file mode 100644
index 000000000000..37d7f289ad42
--- /dev/null
+++ b/arch/powerpc/include/asm/book3s/64/tlbflush.h@@ -0,0 +1,56 @@ +#ifndef _ASM_POWERPC_BOOK3S_64_TLBFLUSH_H +#define _ASM_POWERPC_BOOK3S_64_TLBFLUSH_H + +#include <asm/book3s/64/tlbflush-hash.h> + +static inline void flush_tlb_range(struct vm_area_struct *vma, + unsigned long start, unsigned long end) +{ + return flush_hltlb_range(vma, start, end); +} + +static inline void flush_tlb_kernel_range(unsigned long start, + unsigned long end) +{ + return flush_hltlb_kernel_range(start, end); +} + +static inline void local_flush_tlb_mm(struct mm_struct *mm) +{ + return local_flush_hltlb_mm(mm); +} + +static inline void local_flush_tlb_page(struct vm_area_struct *vma, + unsigned long vmaddr) +{ + return local_flush_hltlb_page(vma, vmaddr); +} + +static inline void flush_tlb_page_nohash(struct vm_area_struct *vma, + unsigned long vmaddr) +{ + return flush_hltlb_page_nohash(vma, vmaddr); +} + +static inline void tlb_flush(struct mmu_gather *tlb) +{ + return hltlb_flush(tlb); +} + +#ifdef CONFIG_SMP +static inline void flush_tlb_mm(struct mm_struct *mm) +{ + return flush_hltlb_mm(mm); +} + +static inline void flush_tlb_page(struct vm_area_struct *vma, + unsigned long vmaddr) +{ + return flush_hltlb_page(vma, vmaddr); +} +#else +#define flush_tlb_mm(mm) local_flush_tlb_mm(mm) +#define flush_tlb_page(vma, addr) local_flush_tlb_page(vma, addr) +#endif /* CONFIG_SMP */ + +#endif /* _ASM_POWERPC_BOOK3S_64_TLBFLUSH_H */
diff --git a/arch/powerpc/include/asm/tlbflush.h b/arch/powerpc/include/asm/tlbflush.h
index 9f77f85e3e99..2fc4331c5bc5 100644
--- a/arch/powerpc/include/asm/tlbflush.h
+++ b/arch/powerpc/include/asm/tlbflush.h@@ -78,7 +78,7 @@ static inline void local_flush_tlb_mm(struct mm_struct *mm) } #elif defined(CONFIG_PPC_STD_MMU_64) -#include <asm/book3s/64/tlbflush-hash.h> +#include <asm/book3s/64/tlbflush.h> #else #error Unsupported MMU type #endif
diff --git a/arch/powerpc/mm/tlb_hash64.c b/arch/powerpc/mm/tlb_hash64.c
index 98a85e426255..ebf386becf9e 100644
--- a/arch/powerpc/mm/tlb_hash64.c
+++ b/arch/powerpc/mm/tlb_hash64.c@@ -155,7 +155,7 @@ void __flush_tlb_pending(struct ppc64_tlb_batch *batch) batch->index = 0; } -void tlb_flush(struct mmu_gather *tlb) +void hltlb_flush(struct mmu_gather *tlb) { struct ppc64_tlb_batch *tlbbatch = &get_cpu_var(ppc64_tlb_batch);
--
2.5.0