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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2013-06-20 11:00:27 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-06-21 08:01:58 +0200 |
| commit | 1a5272866f87d7fbf04dc8060f8da3e8456490ab (patch) | |
| tree | caaff51d526d91200d9463d6d5e6f22c37ee11ce /arch/powerpc/include | |
| parent | powerpc/THP: Enable THP on PPC64 (diff) | |
| download | linux-1a5272866f87d7fbf04dc8060f8da3e8456490ab.tar.xz linux-1a5272866f87d7fbf04dc8060f8da3e8456490ab.zip | |
powerpc: Optimize hugepage invalidate
Hugepage invalidate involves invalidating multiple hpte entries.
Optimize the operation using H_BULK_REMOVE on lpar platforms.
On native, reduce the number of tlb flush.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/machdep.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h index 801e3c61395f..8b480901165a 100644 --- a/arch/powerpc/include/asm/machdep.h +++ b/arch/powerpc/include/asm/machdep.h @@ -57,6 +57,9 @@ struct machdep_calls { void (*hpte_removebolted)(unsigned long ea, int psize, int ssize); void (*flush_hash_range)(unsigned long number, int local); + void (*hugepage_invalidate)(struct mm_struct *mm, + unsigned char *hpte_slot_array, + unsigned long addr, int psize); /* special for kexec, to be called in real mode, linear mapping is * destroyed as well */ |