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powerpc/mm: remove flush_tlb_page_nohash

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This should be same as flush_tlb_page except for hash32. For hash32
I guess the existing code is wrong, because we don't seem to be
flushing tlb for Hash != 0 case at all. Fix this by switching to
calling flush_tlb_page() which does the right thing by flushing
tlb for both hash and nohash case with hash32

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Aneesh Kumar K.V
2016-07-13 15:06:44 +05:30
committed by Michael Ellerman
parent 5491ae7b6f
commit 703b41ad1a
5 changed files with 1 additions and 26 deletions
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5
arch/powerpc/include/asm/book3s/64/tlbflush-hash.h
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@@ -75,11 +75,6 @@ static inline void hash__flush_tlb_page(struct vm_area_struct *vma,
{
}
static inline void hash__flush_tlb_page_nohash(struct vm_area_struct *vma,
unsigned long vmaddr)
{
}
static inline void hash__flush_tlb_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end)
{

8
arch/powerpc/include/asm/book3s/64/tlbflush.h
View File

@@ -57,14 +57,6 @@ static inline void local_flush_tlb_page(struct vm_area_struct *vma,
return hash__local_flush_tlb_page(vma, vmaddr);
}
static inline void flush_tlb_page_nohash(struct vm_area_struct *vma,
unsigned long vmaddr)
{
if (radix_enabled())
return radix__flush_tlb_page(vma, vmaddr);
return hash__flush_tlb_page_nohash(vma, vmaddr);
}
static inline void tlb_flush(struct mmu_gather *tlb)
{
if (radix_enabled())

1
arch/powerpc/include/asm/tlbflush.h
View File

@@ -54,7 +54,6 @@ extern void __flush_tlb_page(struct mm_struct *mm, unsigned long vmaddr,
#define flush_tlb_page(vma,addr) local_flush_tlb_page(vma,addr)
#define __flush_tlb_page(mm,addr,p,i) __local_flush_tlb_page(mm,addr,p,i)
#endif
#define flush_tlb_page_nohash(vma,addr) flush_tlb_page(vma,addr)
#elif defined(CONFIG_PPC_STD_MMU_32)