summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--target-ppc/mmu-hash32.c69
-rw-r--r--target-ppc/mmu-hash32.h4
-rw-r--r--target-ppc/mmu-hash64.c67
-rw-r--r--target-ppc/mmu-hash64.h4
4 files changed, 77 insertions, 67 deletions
diff --git a/target-ppc/mmu-hash32.c b/target-ppc/mmu-hash32.c
index 3be1002e8c..7c13a4957f 100644
--- a/target-ppc/mmu-hash32.c
+++ b/target-ppc/mmu-hash32.c
@@ -297,14 +297,6 @@ static int ppc_hash32_direct_store(CPUPPCState *env, target_ulong sr,
}
}
-static bool pte32_match(target_ulong pte0, target_ulong pte1,
- bool secondary, target_ulong ptem)
-{
- return (pte0 & HPTE32_V_VALID)
- && (secondary == !!(pte0 & HPTE32_V_SECONDARY))
- && HPTE32_V_COMPARE(pte0, ptem);
-}
-
static int pte_check_hash32(struct mmu_ctx_hash32 *ctx, target_ulong pte0,
target_ulong pte1, int rwx)
{
@@ -328,8 +320,8 @@ static int pte_check_hash32(struct mmu_ctx_hash32 *ctx, target_ulong pte0,
return ret;
}
-static int ppc_hash32_pte_update_flags(struct mmu_ctx_hash32 *ctx, target_ulong *pte1p,
- int ret, int rwx)
+static int ppc_hash32_pte_update_flags(struct mmu_ctx_hash32 *ctx,
+ uint32_t *pte1p, int ret, int rwx)
{
int store = 0;
@@ -358,40 +350,49 @@ hwaddr get_pteg_offset32(CPUPPCState *env, hwaddr hash)
return (hash * HASH_PTEG_SIZE_32) & env->htab_mask;
}
-/* PTE table lookup */
+static hwaddr ppc_hash32_pteg_search(CPUPPCState *env, hwaddr pteg_off,
+ bool secondary, target_ulong ptem,
+ ppc_hash_pte32_t *pte)
+{
+ hwaddr pte_offset = pteg_off;
+ target_ulong pte0, pte1;
+ int i;
+
+ for (i = 0; i < HPTES_PER_GROUP; i++) {
+ pte0 = ppc_hash32_load_hpte0(env, pte_offset);
+ pte1 = ppc_hash32_load_hpte1(env, pte_offset);
+
+ if ((pte0 & HPTE32_V_VALID)
+ && (secondary == !!(pte0 & HPTE32_V_SECONDARY))
+ && HPTE32_V_COMPARE(pte0, ptem)) {
+ pte->pte0 = pte0;
+ pte->pte1 = pte1;
+ return pte_offset;
+ }
+
+ pte_offset += HASH_PTE_SIZE_32;
+ }
+
+ return -1;
+}
+
static int find_pte32(CPUPPCState *env, struct mmu_ctx_hash32 *ctx,
target_ulong eaddr, int h, int rwx, int target_page_bits)
{
- hwaddr pteg_off;
- target_ulong pte0, pte1;
- int i, good = -1;
+ hwaddr pteg_off, pte_offset;
+ ppc_hash_pte32_t pte;
int ret;
ret = -1; /* No entry found */
pteg_off = get_pteg_offset32(env, ctx->hash[h]);
- for (i = 0; i < HPTES_PER_GROUP; i++) {
- pte0 = ppc_hash32_load_hpte0(env, pteg_off + i*HASH_PTE_SIZE_32);
- pte1 = ppc_hash32_load_hpte1(env, pteg_off + i*HASH_PTE_SIZE_32);
-
- LOG_MMU("Load pte from %08" HWADDR_PRIx " => " TARGET_FMT_lx " "
- TARGET_FMT_lx " %d %d %d " TARGET_FMT_lx "\n",
- pteg_off + (i * 8), pte0, pte1, (int)(pte0 >> 31), h,
- (int)((pte0 >> 6) & 1), ctx->ptem);
-
- if (pte32_match(pte0, pte1, h, ctx->ptem)) {
- good = i;
- break;
- }
- }
- if (good != -1) {
- ret = pte_check_hash32(ctx, pte0, pte1, rwx);
+ pte_offset = ppc_hash32_pteg_search(env, pteg_off, h, ctx->ptem, &pte);
+ if (pte_offset != -1) {
+ ret = pte_check_hash32(ctx, pte.pte0, pte.pte1, rwx);
LOG_MMU("found PTE at addr %08" HWADDR_PRIx " prot=%01x ret=%d\n",
ctx->raddr, ctx->prot, ret);
/* Update page flags */
- pte1 = ctx->raddr;
- if (ppc_hash32_pte_update_flags(ctx, &pte1, ret, rwx) == 1) {
- ppc_hash32_store_hpte1(env, pteg_off + good * HASH_PTE_SIZE_32,
- pte1);
+ if (ppc_hash32_pte_update_flags(ctx, &pte.pte1, ret, rwx) == 1) {
+ ppc_hash32_store_hpte1(env, pte_offset, pte.pte1);
}
}
diff --git a/target-ppc/mmu-hash32.h b/target-ppc/mmu-hash32.h
index 2344184584..f990edc3ef 100644
--- a/target-ppc/mmu-hash32.h
+++ b/target-ppc/mmu-hash32.h
@@ -97,6 +97,10 @@ static inline void ppc_hash32_store_hpte1(CPUPPCState *env,
stl_phys(env->htab_base + pte_offset + HASH_PTE_SIZE_32/2, pte1);
}
+typedef struct {
+ uint32_t pte0, pte1;
+} ppc_hash_pte32_t;
+
#endif /* CONFIG_USER_ONLY */
#endif /* __MMU_HASH32_H__ */
diff --git a/target-ppc/mmu-hash64.c b/target-ppc/mmu-hash64.c
index 8664116aab..66b2d2444b 100644
--- a/target-ppc/mmu-hash64.c
+++ b/target-ppc/mmu-hash64.c
@@ -299,14 +299,6 @@ static int ppc_hash64_check_prot(int prot, int rwx)
return ret;
}
-static bool pte64_match(target_ulong pte0, target_ulong pte1,
- bool secondary, target_ulong ptem)
-{
- return (pte0 & HPTE64_V_VALID)
- && (secondary == !!(pte0 & HPTE64_V_SECONDARY))
- && HPTE64_V_COMPARE(pte0, ptem);
-}
-
static int pte64_check(struct mmu_ctx_hash64 *ctx, target_ulong pte0,
target_ulong pte1, int rwx)
{
@@ -334,8 +326,7 @@ static int pte64_check(struct mmu_ctx_hash64 *ctx, target_ulong pte0,
}
static int ppc_hash64_pte_update_flags(struct mmu_ctx_hash64 *ctx,
- target_ulong *pte1p,
- int ret, int rw)
+ uint64_t *pte1p, int ret, int rw)
{
int store = 0;
@@ -359,39 +350,49 @@ static int ppc_hash64_pte_update_flags(struct mmu_ctx_hash64 *ctx,
return store;
}
-/* PTE table lookup */
+static hwaddr ppc_hash64_pteg_search(CPUPPCState *env, hwaddr pteg_off,
+ bool secondary, target_ulong ptem,
+ ppc_hash_pte64_t *pte)
+{
+ hwaddr pte_offset = pteg_off;
+ target_ulong pte0, pte1;
+ int i;
+
+ for (i = 0; i < HPTES_PER_GROUP; i++) {
+ pte0 = ppc_hash64_load_hpte0(env, pte_offset);
+ pte1 = ppc_hash64_load_hpte1(env, pte_offset);
+
+ if ((pte0 & HPTE64_V_VALID)
+ && (secondary == !!(pte0 & HPTE64_V_SECONDARY))
+ && HPTE64_V_COMPARE(pte0, ptem)) {
+ pte->pte0 = pte0;
+ pte->pte1 = pte1;
+ return pte_offset;
+ }
+
+ pte_offset += HASH_PTE_SIZE_64;
+ }
+
+ return -1;
+}
+
static int find_pte64(CPUPPCState *env, struct mmu_ctx_hash64 *ctx,
target_ulong eaddr, int h, int rwx, int target_page_bits)
{
- hwaddr pteg_off;
- target_ulong pte0, pte1;
- int i, good = -1;
+ hwaddr pteg_off, pte_offset;
+ ppc_hash_pte64_t pte;
int ret;
ret = -1; /* No entry found */
pteg_off = (ctx->hash[h] * HASH_PTEG_SIZE_64) & env->htab_mask;
- for (i = 0; i < HPTES_PER_GROUP; i++) {
- pte0 = ppc_hash64_load_hpte0(env, pteg_off + i*HASH_PTE_SIZE_64);
- pte1 = ppc_hash64_load_hpte1(env, pteg_off + i*HASH_PTE_SIZE_64);
-
- LOG_MMU("Load pte from %016" HWADDR_PRIx " => " TARGET_FMT_lx " "
- TARGET_FMT_lx " %d %d %d " TARGET_FMT_lx "\n",
- pteg_off + (i * 16), pte0, pte1, !!(pte0 & HPTE64_V_VALID),
- h, !!(pte0 & HPTE64_V_SECONDARY), ctx->ptem);
-
- if (pte64_match(pte0, pte1, h, ctx->ptem)) {
- good = i;
- break;
- }
- }
- if (good != -1) {
- ret = pte64_check(ctx, pte0, pte1, rwx);
+ pte_offset = ppc_hash64_pteg_search(env, pteg_off, h, ctx->ptem, &pte);
+ if (pte_offset != -1) {
+ ret = pte64_check(ctx, pte.pte0, pte.pte1, rwx);
LOG_MMU("found PTE at addr %08" HWADDR_PRIx " prot=%01x ret=%d\n",
ctx->raddr, ctx->prot, ret);
/* Update page flags */
- pte1 = ctx->raddr;
- if (ppc_hash64_pte_update_flags(ctx, &pte1, ret, rwx) == 1) {
- ppc_hash64_store_hpte1(env, pteg_off + good * HASH_PTE_SIZE_64, pte1);
+ if (ppc_hash64_pte_update_flags(ctx, &pte.pte1, ret, rwx) == 1) {
+ ppc_hash64_store_hpte1(env, pte_offset, pte.pte1);
}
}
diff --git a/target-ppc/mmu-hash64.h b/target-ppc/mmu-hash64.h
index 84576c0648..37ed7ca4ef 100644
--- a/target-ppc/mmu-hash64.h
+++ b/target-ppc/mmu-hash64.h
@@ -113,6 +113,10 @@ static inline void ppc_hash64_store_hpte1(CPUPPCState *env,
}
}
+typedef struct {
+ uint64_t pte0, pte1;
+} ppc_hash_pte64_t;
+
#endif /* CONFIG_USER_ONLY */
#endif /* !defined (__MMU_HASH64_H__) */
generated by cgit v1.2.1 (git 2.18.0) at 2024-07-07 23:00:43 +0000