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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2013-04-28 09:37:34 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-04-30 16:00:11 +1000
commit74f227b22897e0db52a58f8f634e9ce6f67cc652 (patch)
tree987b31602251010b3335389510cf5d037d331413
parent5c1f6ee9a31cbdac90bbb8ae1ba4475031ac74b4 (diff)
downloadlinaro-lsk-74f227b22897e0db52a58f8f634e9ce6f67cc652.tar.gz
powerpc: Use encode avpn where we need only avpn values
In all these cases we are doing something similar to HPTE_V_COMPARE(hpte_v, want_v) which ignores the HPTE_V_LARGE bit With MPSS support we would need actual page size to set HPTE_V_LARGE bit and that won't be available in most of these cases. Since we are ignoring HPTE_V_LARGE bit, use the avpn value instead. There should not be any change in behaviour after this patch. Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
-rw-r--r--arch/powerpc/mm/hash_native_64.c8
-rw-r--r--arch/powerpc/platforms/cell/beat_htab.c10
-rw-r--r--arch/powerpc/platforms/ps3/htab.c2
3 files changed, 10 insertions, 10 deletions
diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c
index ffc1e00f7a2..9d8983ad1de 100644
--- a/arch/powerpc/mm/hash_native_64.c
+++ b/arch/powerpc/mm/hash_native_64.c
@@ -252,7 +252,7 @@ static long native_hpte_updatepp(unsigned long slot, unsigned long newpp,
unsigned long hpte_v, want_v;
int ret = 0;
- want_v = hpte_encode_v(vpn, psize, ssize);
+ want_v = hpte_encode_avpn(vpn, psize, ssize);
DBG_LOW(" update(vpn=%016lx, avpnv=%016lx, group=%lx, newpp=%lx)",
vpn, want_v & HPTE_V_AVPN, slot, newpp);
@@ -288,7 +288,7 @@ static long native_hpte_find(unsigned long vpn, int psize, int ssize)
unsigned long want_v, hpte_v;
hash = hpt_hash(vpn, mmu_psize_defs[psize].shift, ssize);
- want_v = hpte_encode_v(vpn, psize, ssize);
+ want_v = hpte_encode_avpn(vpn, psize, ssize);
/* Bolted mappings are only ever in the primary group */
slot = (hash & htab_hash_mask) * HPTES_PER_GROUP;
@@ -348,7 +348,7 @@ static void native_hpte_invalidate(unsigned long slot, unsigned long vpn,
DBG_LOW(" invalidate(vpn=%016lx, hash: %lx)\n", vpn, slot);
- want_v = hpte_encode_v(vpn, psize, ssize);
+ want_v = hpte_encode_avpn(vpn, psize, ssize);
native_lock_hpte(hptep);
hpte_v = hptep->v;
@@ -520,7 +520,7 @@ static void native_flush_hash_range(unsigned long number, int local)
slot = (hash & htab_hash_mask) * HPTES_PER_GROUP;
slot += hidx & _PTEIDX_GROUP_IX;
hptep = htab_address + slot;
- want_v = hpte_encode_v(vpn, psize, ssize);
+ want_v = hpte_encode_avpn(vpn, psize, ssize);
native_lock_hpte(hptep);
hpte_v = hptep->v;
if (!HPTE_V_COMPARE(hpte_v, want_v) ||
diff --git a/arch/powerpc/platforms/cell/beat_htab.c b/arch/powerpc/platforms/cell/beat_htab.c
index 0f6f83988b3..472f9a7609c 100644
--- a/arch/powerpc/platforms/cell/beat_htab.c
+++ b/arch/powerpc/platforms/cell/beat_htab.c
@@ -191,7 +191,7 @@ static long beat_lpar_hpte_updatepp(unsigned long slot,
u64 dummy0, dummy1;
unsigned long want_v;
- want_v = hpte_encode_v(vpn, psize, MMU_SEGSIZE_256M);
+ want_v = hpte_encode_avpn(vpn, psize, MMU_SEGSIZE_256M);
DBG_LOW(" update: "
"avpnv=%016lx, slot=%016lx, psize: %d, newpp %016lx ... ",
@@ -228,7 +228,7 @@ static long beat_lpar_hpte_find(unsigned long vpn, int psize)
unsigned long want_v, hpte_v;
hash = hpt_hash(vpn, mmu_psize_defs[psize].shift, MMU_SEGSIZE_256M);
- want_v = hpte_encode_v(vpn, psize, MMU_SEGSIZE_256M);
+ want_v = hpte_encode_avpn(vpn, psize, MMU_SEGSIZE_256M);
for (j = 0; j < 2; j++) {
slot = (hash & htab_hash_mask) * HPTES_PER_GROUP;
@@ -283,7 +283,7 @@ static void beat_lpar_hpte_invalidate(unsigned long slot, unsigned long vpn,
DBG_LOW(" inval : slot=%lx, va=%016lx, psize: %d, local: %d\n",
slot, va, psize, local);
- want_v = hpte_encode_v(vpn, psize, MMU_SEGSIZE_256M);
+ want_v = hpte_encode_avpn(vpn, psize, MMU_SEGSIZE_256M);
raw_spin_lock_irqsave(&beat_htab_lock, flags);
dummy1 = beat_lpar_hpte_getword0(slot);
@@ -372,7 +372,7 @@ static long beat_lpar_hpte_updatepp_v3(unsigned long slot,
unsigned long want_v;
unsigned long pss;
- want_v = hpte_encode_v(vpn, psize, MMU_SEGSIZE_256M);
+ want_v = hpte_encode_avpn(vpn, psize, MMU_SEGSIZE_256M);
pss = (psize == MMU_PAGE_4K) ? -1UL : mmu_psize_defs[psize].penc;
DBG_LOW(" update: "
@@ -402,7 +402,7 @@ static void beat_lpar_hpte_invalidate_v3(unsigned long slot, unsigned long vpn,
DBG_LOW(" inval : slot=%lx, vpn=%016lx, psize: %d, local: %d\n",
slot, vpn, psize, local);
- want_v = hpte_encode_v(vpn, psize, MMU_SEGSIZE_256M);
+ want_v = hpte_encode_avpn(vpn, psize, MMU_SEGSIZE_256M);
pss = (psize == MMU_PAGE_4K) ? -1UL : mmu_psize_defs[psize].penc;
lpar_rc = beat_invalidate_htab_entry3(0, slot, want_v, pss);
diff --git a/arch/powerpc/platforms/ps3/htab.c b/arch/powerpc/platforms/ps3/htab.c
index 6cc58201db8..cd8f2fbb6d1 100644
--- a/arch/powerpc/platforms/ps3/htab.c
+++ b/arch/powerpc/platforms/ps3/htab.c
@@ -117,7 +117,7 @@ static long ps3_hpte_updatepp(unsigned long slot, unsigned long newpp,
unsigned long flags;
long ret;
- want_v = hpte_encode_v(vpn, psize, ssize);
+ want_v = hpte_encode_avpn(vpn, psize, ssize);
spin_lock_irqsave(&ps3_htab_lock, flags);