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-rw-r--r--arch/powerpc/include/asm/machdep.h8
-rw-r--r--arch/powerpc/kvm/book3s_64_mmu_host.c2
-rw-r--r--arch/powerpc/mm/hash_low_64.S21
-rw-r--r--arch/powerpc/mm/hash_native_64.c122
-rw-r--r--arch/powerpc/mm/hash_utils_64.c9
-rw-r--r--arch/powerpc/mm/hugetlbpage-hash64.c2
-rw-r--r--arch/powerpc/platforms/cell/beat_htab.c16
-rw-r--r--arch/powerpc/platforms/ps3/htab.c5
-rw-r--r--arch/powerpc/platforms/pseries/lpar.c17
9 files changed, 95 insertions, 107 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);
diff --git a/arch/powerpc/kvm/book3s_64_mmu_host.c b/arch/powerpc/kvm/book3s_64_mmu_host.c
index 3a9a1aceb14f..176d3fd53b73 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_host.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_host.c
@@ -34,7 +34,7 @@
void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte)
{
ppc_md.hpte_invalidate(pte->slot, pte->host_vpn,
- MMU_PAGE_4K, MMU_SEGSIZE_256M,
+ MMU_PAGE_4K, MMU_PAGE_4K, MMU_SEGSIZE_256M,
false);
}
diff --git a/arch/powerpc/mm/hash_low_64.S b/arch/powerpc/mm/hash_low_64.S
index 0e980acae67c..d3cbda62857b 100644
--- a/arch/powerpc/mm/hash_low_64.S
+++ b/arch/powerpc/mm/hash_low_64.S
@@ -289,9 +289,10 @@ htab_modify_pte:
/* Call ppc_md.hpte_updatepp */
mr r5,r29 /* vpn */
- li r6,MMU_PAGE_4K /* page size */
- ld r7,STK_PARAM(R9)(r1) /* segment size */
- ld r8,STK_PARAM(R8)(r1) /* get "local" param */
+ li r6,MMU_PAGE_4K /* base page size */
+ li r7,MMU_PAGE_4K /* actual page size */
+ ld r8,STK_PARAM(R9)(r1) /* segment size */
+ ld r9,STK_PARAM(R8)(r1) /* get "local" param */
_GLOBAL(htab_call_hpte_updatepp)
bl . /* Patched by htab_finish_init() */
@@ -649,9 +650,10 @@ htab_modify_pte:
/* Call ppc_md.hpte_updatepp */
mr r5,r29 /* vpn */
- li r6,MMU_PAGE_4K /* page size */
- ld r7,STK_PARAM(R9)(r1) /* segment size */
- ld r8,STK_PARAM(R8)(r1) /* get "local" param */
+ li r6,MMU_PAGE_4K /* base page size */
+ li r7,MMU_PAGE_4K /* actual page size */
+ ld r8,STK_PARAM(R9)(r1) /* segment size */
+ ld r9,STK_PARAM(R8)(r1) /* get "local" param */
_GLOBAL(htab_call_hpte_updatepp)
bl . /* patched by htab_finish_init() */
@@ -937,9 +939,10 @@ ht64_modify_pte:
/* Call ppc_md.hpte_updatepp */
mr r5,r29 /* vpn */
- li r6,MMU_PAGE_64K
- ld r7,STK_PARAM(R9)(r1) /* segment size */
- ld r8,STK_PARAM(R8)(r1) /* get "local" param */
+ li r6,MMU_PAGE_64K /* base page size */
+ li r7,MMU_PAGE_64K /* actual page size */
+ ld r8,STK_PARAM(R9)(r1) /* segment size */
+ ld r9,STK_PARAM(R8)(r1) /* get "local" param */
_GLOBAL(ht64_call_hpte_updatepp)
bl . /* patched by htab_finish_init() */
diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c
index 4c122c3f1623..6d152bc993e5 100644
--- a/arch/powerpc/mm/hash_native_64.c
+++ b/arch/powerpc/mm/hash_native_64.c
@@ -273,61 +273,15 @@ static long native_hpte_remove(unsigned long hpte_group)
return i;
}
-static inline int __hpte_actual_psize(unsigned int lp, int psize)
-{
- int i, shift;
- unsigned int mask;
-
- /* start from 1 ignoring MMU_PAGE_4K */
- for (i = 1; i < MMU_PAGE_COUNT; i++) {
-
- /* invalid penc */
- if (mmu_psize_defs[psize].penc[i] == -1)
- continue;
- /*
- * encoding bits per actual page size
- * PTE LP actual page size
- * rrrr rrrz >=8KB
- * rrrr rrzz >=16KB
- * rrrr rzzz >=32KB
- * rrrr zzzz >=64KB
- * .......
- */
- shift = mmu_psize_defs[i].shift - LP_SHIFT;
- if (shift > LP_BITS)
- shift = LP_BITS;
- mask = (1 << shift) - 1;
- if ((lp & mask) == mmu_psize_defs[psize].penc[i])
- return i;
- }
- return -1;
-}
-
-static inline int hpte_actual_psize(struct hash_pte *hptep, int psize)
-{
- /* Look at the 8 bit LP value */
- unsigned int lp = (hptep->r >> LP_SHIFT) & ((1 << LP_BITS) - 1);
-
- if (!(hptep->v & HPTE_V_VALID))
- return -1;
-
- /* First check if it is large page */
- if (!(hptep->v & HPTE_V_LARGE))
- return MMU_PAGE_4K;
-
- return __hpte_actual_psize(lp, psize);
-}
-
static long native_hpte_updatepp(unsigned long slot, unsigned long newpp,
- unsigned long vpn, int psize, int ssize,
- int local)
+ unsigned long vpn, int bpsize,
+ int apsize, int ssize, int local)
{
struct hash_pte *hptep = htab_address + slot;
unsigned long hpte_v, want_v;
int ret = 0;
- int actual_psize;
- want_v = hpte_encode_avpn(vpn, psize, ssize);
+ want_v = hpte_encode_avpn(vpn, bpsize, ssize);
DBG_LOW(" update(vpn=%016lx, avpnv=%016lx, group=%lx, newpp=%lx)",
vpn, want_v & HPTE_V_AVPN, slot, newpp);
@@ -335,7 +289,6 @@ static long native_hpte_updatepp(unsigned long slot, unsigned long newpp,
native_lock_hpte(hptep);
hpte_v = hptep->v;
- actual_psize = hpte_actual_psize(hptep, psize);
/*
* We need to invalidate the TLB always because hpte_remove doesn't do
* a tlb invalidate. If a hash bucket gets full, we "evict" a more/less
@@ -343,12 +296,7 @@ static long native_hpte_updatepp(unsigned long slot, unsigned long newpp,
* (hpte_remove) because we assume the old translation is still
* technically "valid".
*/
- if (actual_psize < 0) {
- actual_psize = psize;
- ret = -1;
- goto err_out;
- }
- if (!HPTE_V_COMPARE(hpte_v, want_v)) {
+ if (!HPTE_V_COMPARE(hpte_v, want_v) || !(hpte_v & HPTE_V_VALID)) {
DBG_LOW(" -> miss\n");
ret = -1;
} else {
@@ -357,11 +305,10 @@ static long native_hpte_updatepp(unsigned long slot, unsigned long newpp,
hptep->r = (hptep->r & ~(HPTE_R_PP | HPTE_R_N)) |
(newpp & (HPTE_R_PP | HPTE_R_N | HPTE_R_C));
}
-err_out:
native_unlock_hpte(hptep);
/* Ensure it is out of the tlb too. */
- tlbie(vpn, psize, actual_psize, ssize, local);
+ tlbie(vpn, bpsize, apsize, ssize, local);
return ret;
}
@@ -402,7 +349,6 @@ static long native_hpte_find(unsigned long vpn, int psize, int ssize)
static void native_hpte_updateboltedpp(unsigned long newpp, unsigned long ea,
int psize, int ssize)
{
- int actual_psize;
unsigned long vpn;
unsigned long vsid;
long slot;
@@ -415,36 +361,33 @@ static void native_hpte_updateboltedpp(unsigned long newpp, unsigned long ea,
if (slot == -1)
panic("could not find page to bolt\n");
hptep = htab_address + slot;
- actual_psize = hpte_actual_psize(hptep, psize);
- if (actual_psize < 0)
- actual_psize = psize;
/* Update the HPTE */
hptep->r = (hptep->r & ~(HPTE_R_PP | HPTE_R_N)) |
(newpp & (HPTE_R_PP | HPTE_R_N));
-
- /* Ensure it is out of the tlb too. */
- tlbie(vpn, psize, actual_psize, ssize, 0);
+ /*
+ * Ensure it is out of the tlb too. Bolted entries base and
+ * actual page size will be same.
+ */
+ tlbie(vpn, psize, psize, ssize, 0);
}
static void native_hpte_invalidate(unsigned long slot, unsigned long vpn,
- int psize, int ssize, int local)
+ int bpsize, int apsize, int ssize, int local)
{
struct hash_pte *hptep = htab_address + slot;
unsigned long hpte_v;
unsigned long want_v;
unsigned long flags;
- int actual_psize;
local_irq_save(flags);
DBG_LOW(" invalidate(vpn=%016lx, hash: %lx)\n", vpn, slot);
- want_v = hpte_encode_avpn(vpn, psize, ssize);
+ want_v = hpte_encode_avpn(vpn, bpsize, ssize);
native_lock_hpte(hptep);
hpte_v = hptep->v;
- actual_psize = hpte_actual_psize(hptep, psize);
/*
* We need to invalidate the TLB always because hpte_remove doesn't do
* a tlb invalidate. If a hash bucket gets full, we "evict" a more/less
@@ -452,23 +395,48 @@ static void native_hpte_invalidate(unsigned long slot, unsigned long vpn,
* (hpte_remove) because we assume the old translation is still
* technically "valid".
*/
- if (actual_psize < 0) {
- actual_psize = psize;
- native_unlock_hpte(hptep);
- goto err_out;
- }
- if (!HPTE_V_COMPARE(hpte_v, want_v))
+ if (!HPTE_V_COMPARE(hpte_v, want_v) || !(hpte_v & HPTE_V_VALID))
native_unlock_hpte(hptep);
else
/* Invalidate the hpte. NOTE: this also unlocks it */
hptep->v = 0;
-err_out:
/* Invalidate the TLB */
- tlbie(vpn, psize, actual_psize, ssize, local);
+ tlbie(vpn, bpsize, apsize, ssize, local);
+
local_irq_restore(flags);
}
+static inline int __hpte_actual_psize(unsigned int lp, int psize)
+{
+ int i, shift;
+ unsigned int mask;
+
+ /* start from 1 ignoring MMU_PAGE_4K */
+ for (i = 1; i < MMU_PAGE_COUNT; i++) {
+
+ /* invalid penc */
+ if (mmu_psize_defs[psize].penc[i] == -1)
+ continue;
+ /*
+ * encoding bits per actual page size
+ * PTE LP actual page size
+ * rrrr rrrz >=8KB
+ * rrrr rrzz >=16KB
+ * rrrr rzzz >=32KB
+ * rrrr zzzz >=64KB
+ * .......
+ */
+ shift = mmu_psize_defs[i].shift - LP_SHIFT;
+ if (shift > LP_BITS)
+ shift = LP_BITS;
+ mask = (1 << shift) - 1;
+ if ((lp & mask) == mmu_psize_defs[psize].penc[i])
+ return i;
+ }
+ return -1;
+}
+
static void hpte_decode(struct hash_pte *hpte, unsigned long slot,
int *psize, int *apsize, int *ssize, unsigned long *vpn)
{
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index e303a6d74e3a..2f470809876f 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -1232,7 +1232,11 @@ void flush_hash_page(unsigned long vpn, real_pte_t pte, int psize, int ssize,
slot = (hash & htab_hash_mask) * HPTES_PER_GROUP;
slot += hidx & _PTEIDX_GROUP_IX;
DBG_LOW(" sub %ld: hash=%lx, hidx=%lx\n", index, slot, hidx);
- ppc_md.hpte_invalidate(slot, vpn, psize, ssize, local);
+ /*
+ * We use same base page size and actual psize, because we don't
+ * use these functions for hugepage
+ */
+ ppc_md.hpte_invalidate(slot, vpn, psize, psize, ssize, local);
} pte_iterate_hashed_end();
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
@@ -1365,7 +1369,8 @@ static void kernel_unmap_linear_page(unsigned long vaddr, unsigned long lmi)
hash = ~hash;
slot = (hash & htab_hash_mask) * HPTES_PER_GROUP;
slot += hidx & _PTEIDX_GROUP_IX;
- ppc_md.hpte_invalidate(slot, vpn, mmu_linear_psize, mmu_kernel_ssize, 0);
+ ppc_md.hpte_invalidate(slot, vpn, mmu_linear_psize, mmu_linear_psize,
+ mmu_kernel_ssize, 0);
}
void kernel_map_pages(struct page *page, int numpages, int enable)
diff --git a/arch/powerpc/mm/hugetlbpage-hash64.c b/arch/powerpc/mm/hugetlbpage-hash64.c
index 0f1d94a1fb82..0b7fb6761015 100644
--- a/arch/powerpc/mm/hugetlbpage-hash64.c
+++ b/arch/powerpc/mm/hugetlbpage-hash64.c
@@ -81,7 +81,7 @@ int __hash_page_huge(unsigned long ea, unsigned long access, unsigned long vsid,
slot += (old_pte & _PAGE_F_GIX) >> 12;
if (ppc_md.hpte_updatepp(slot, rflags, vpn, mmu_psize,
- ssize, local) == -1)
+ mmu_psize, ssize, local) == -1)
old_pte &= ~_PAGE_HPTEFLAGS;
}
diff --git a/arch/powerpc/platforms/cell/beat_htab.c b/arch/powerpc/platforms/cell/beat_htab.c
index 246e1d8b3af3..c34ee4e60873 100644
--- a/arch/powerpc/platforms/cell/beat_htab.c
+++ b/arch/powerpc/platforms/cell/beat_htab.c
@@ -185,7 +185,8 @@ static void beat_lpar_hptab_clear(void)
static long beat_lpar_hpte_updatepp(unsigned long slot,
unsigned long newpp,
unsigned long vpn,
- int psize, int ssize, int local)
+ int psize, int apsize,
+ int ssize, int local)
{
unsigned long lpar_rc;
u64 dummy0, dummy1;
@@ -274,7 +275,8 @@ static void beat_lpar_hpte_updateboltedpp(unsigned long newpp,
}
static void beat_lpar_hpte_invalidate(unsigned long slot, unsigned long vpn,
- int psize, int ssize, int local)
+ int psize, int apsize,
+ int ssize, int local)
{
unsigned long want_v;
unsigned long lpar_rc;
@@ -364,9 +366,10 @@ static long beat_lpar_hpte_insert_v3(unsigned long hpte_group,
* already zero. For now I am paranoid.
*/
static long beat_lpar_hpte_updatepp_v3(unsigned long slot,
- unsigned long newpp,
- unsigned long vpn,
- int psize, int ssize, int local)
+ unsigned long newpp,
+ unsigned long vpn,
+ int psize, int apsize,
+ int ssize, int local)
{
unsigned long lpar_rc;
unsigned long want_v;
@@ -394,7 +397,8 @@ static long beat_lpar_hpte_updatepp_v3(unsigned long slot,
}
static void beat_lpar_hpte_invalidate_v3(unsigned long slot, unsigned long vpn,
- int psize, int ssize, int local)
+ int psize, int apsize,
+ int ssize, int local)
{
unsigned long want_v;
unsigned long lpar_rc;
diff --git a/arch/powerpc/platforms/ps3/htab.c b/arch/powerpc/platforms/ps3/htab.c
index 177a2f70700c..3e270e3412ae 100644
--- a/arch/powerpc/platforms/ps3/htab.c
+++ b/arch/powerpc/platforms/ps3/htab.c
@@ -109,7 +109,8 @@ static long ps3_hpte_remove(unsigned long hpte_group)
}
static long ps3_hpte_updatepp(unsigned long slot, unsigned long newpp,
- unsigned long vpn, int psize, int ssize, int local)
+ unsigned long vpn, int psize, int apsize,
+ int ssize, int local)
{
int result;
u64 hpte_v, want_v, hpte_rs;
@@ -162,7 +163,7 @@ static void ps3_hpte_updateboltedpp(unsigned long newpp, unsigned long ea,
}
static void ps3_hpte_invalidate(unsigned long slot, unsigned long vpn,
- int psize, int ssize, int local)
+ int psize, int apsize, int ssize, int local)
{
unsigned long flags;
int result;
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index 6d62072a7d5a..ca45c8f3c0ba 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -240,7 +240,8 @@ static void pSeries_lpar_hptab_clear(void)
static long pSeries_lpar_hpte_updatepp(unsigned long slot,
unsigned long newpp,
unsigned long vpn,
- int psize, int ssize, int local)
+ int psize, int apsize,
+ int ssize, int local)
{
unsigned long lpar_rc;
unsigned long flags = (newpp & 7) | H_AVPN;
@@ -328,7 +329,8 @@ static void pSeries_lpar_hpte_updateboltedpp(unsigned long newpp,
}
static void pSeries_lpar_hpte_invalidate(unsigned long slot, unsigned long vpn,
- int psize, int ssize, int local)
+ int psize, int apsize,
+ int ssize, int local)
{
unsigned long want_v;
unsigned long lpar_rc;
@@ -356,8 +358,10 @@ static void pSeries_lpar_hpte_removebolted(unsigned long ea,
slot = pSeries_lpar_hpte_find(vpn, psize, ssize);
BUG_ON(slot == -1);
-
- pSeries_lpar_hpte_invalidate(slot, vpn, psize, ssize, 0);
+ /*
+ * lpar doesn't use the passed actual page size
+ */
+ pSeries_lpar_hpte_invalidate(slot, vpn, psize, 0, ssize, 0);
}
/* Flag bits for H_BULK_REMOVE */
@@ -400,8 +404,11 @@ static void pSeries_lpar_flush_hash_range(unsigned long number, int local)
slot = (hash & htab_hash_mask) * HPTES_PER_GROUP;
slot += hidx & _PTEIDX_GROUP_IX;
if (!firmware_has_feature(FW_FEATURE_BULK_REMOVE)) {
+ /*
+ * lpar doesn't use the passed actual page size
+ */
pSeries_lpar_hpte_invalidate(slot, vpn, psize,
- ssize, local);
+ 0, ssize, local);
} else {
param[pix] = HBR_REQUEST | HBR_AVPN | slot;
param[pix+1] = hpte_encode_avpn(vpn, psize,
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 19:59:54 +0000