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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2013-06-20 11:00:13 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-06-21 08:01:52 +0200 |
| commit | db3d8534903c8a9617142975bec6db95acaba753 (patch) | |
| tree | eea268dcfdd5cce84aa9b32025528dbc2d71d5aa /arch/powerpc/include/asm/machdep.h | |
| parent | powerpc/eeh: Debugfs for error injection (diff) | |
| download | linux-db3d8534903c8a9617142975bec6db95acaba753.tar.xz linux-db3d8534903c8a9617142975bec6db95acaba753.zip | |
powerpc/mm: handle hugepage size correctly when invalidating hpte entries
If a hash bucket gets full, we "evict" a more/less random entry from it.
When we do that we don't invalidate the TLB (hpte_remove) because we assume
the old translation is still technically "valid". This implies that when
we are invalidating or updating pte, even if HPTE entry is not valid
we should do a tlb invalidate. With hugepages, we need to pass the correct
actual page size value for tlb invalidation.
This change update the patch 0608d692463598c1d6e826d9dd7283381b4f246c
"powerpc/mm: Always invalidate tlb on hpte invalidate and update" to handle
transparent hugepages correctly.
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/asm/machdep.h')
| -rw-r--r-- | arch/powerpc/include/asm/machdep.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h index 92386fc4e82a..801e3c61395f 100644 --- a/arch/powerpc/include/asm/machdep.h +++ b/arch/powerpc/include/asm/machdep.h @@ -36,13 +36,13 @@ struct machdep_calls { #ifdef CONFIG_PPC64 void (*hpte_invalidate)(unsigned long slot, unsigned long vpn, - int psize, int ssize, - int local); + int bpsize, int apsize, + int ssize, int local); long (*hpte_updatepp)(unsigned long slot, unsigned long newpp, unsigned long vpn, - int psize, int ssize, - int local); + int bpsize, int apsize, + int ssize, int local); void (*hpte_updateboltedpp)(unsigned long newpp, unsigned long ea, int psize, int ssize); |