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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2013-06-20 13:00:13 +0400
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-06-21 10:01:52 +0400
commitdb3d8534903c8a9617142975bec6db95acaba753 (patch)
treeeea268dcfdd5cce84aa9b32025528dbc2d71d5aa /arch/powerpc/include/asm/machdep.h
parent8998897b8f966c9036307b5130494d4bf1e6cb18 (diff)
downloadlinux-db3d8534903c8a9617142975bec6db95acaba753.tar.xz
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.h8
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);