summaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2016-04-29 23:26:04 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2016-05-01 18:33:08 +1000
commit676012a66f651a98808459bc8ab75661828ed96f (patch)
tree30029244e74a5de7e8989a6424ec2080341160bc /arch
parentf5df4b4be9ae5abf748065d7f40d6027bf9af148 (diff)
powerpc/mm: Hash abstraction for tlbflush routines
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/include/asm/book3s/64/tlbflush-hash.h28
-rw-r--r--arch/powerpc/include/asm/book3s/64/tlbflush.h56
-rw-r--r--arch/powerpc/include/asm/tlbflush.h2
-rw-r--r--arch/powerpc/mm/tlb_hash64.c2
4 files changed, 73 insertions, 15 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush-hash.h b/arch/powerpc/include/asm/book3s/64/tlbflush-hash.h
index 1b753f96b374..cc092ea0387c 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 hash__local_flush_tlb_mm(struct mm_struct *mm)
{
}
-static inline void flush_tlb_mm(struct mm_struct *mm)
+static inline void hash__flush_tlb_mm(struct mm_struct *mm)
{
}
-static inline void local_flush_tlb_page(struct vm_area_struct *vma,
- unsigned long vmaddr)
+static inline void hash__local_flush_tlb_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 hash__flush_tlb_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 hash__flush_tlb_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 hash__flush_tlb_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 hash__flush_tlb_kernel_range(unsigned long start,
+ unsigned long end)
{
}
+
+struct mmu_gather;
+extern void hash__tlb_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..476ea24b0313
--- /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 hash__flush_tlb_range(vma, start, end);
+}
+
+static inline void flush_tlb_kernel_range(unsigned long start,
+ unsigned long end)
+{
+ return hash__flush_tlb_kernel_range(start, end);
+}
+
+static inline void local_flush_tlb_mm(struct mm_struct *mm)
+{
+ return hash__local_flush_tlb_mm(mm);
+}
+
+static inline void local_flush_tlb_page(struct vm_area_struct *vma,
+ unsigned long vmaddr)
+{
+ return hash__local_flush_tlb_page(vma, vmaddr);
+}
+
+static inline void flush_tlb_page_nohash(struct vm_area_struct *vma,
+ unsigned long vmaddr)
+{
+ return hash__flush_tlb_page_nohash(vma, vmaddr);
+}
+
+static inline void tlb_flush(struct mmu_gather *tlb)
+{
+ return hash__tlb_flush(tlb);
+}
+
+#ifdef CONFIG_SMP
+static inline void flush_tlb_mm(struct mm_struct *mm)
+{
+ return hash__flush_tlb_mm(mm);
+}
+
+static inline void flush_tlb_page(struct vm_area_struct *vma,
+ unsigned long vmaddr)
+{
+ return hash__flush_tlb_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 38497cf5e31b..4517aa43a8b1 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 hash__tlb_flush(struct mmu_gather *tlb)
{
struct ppc64_tlb_batch *tlbbatch = &get_cpu_var(ppc64_tlb_batch);