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[PATCH 24/24] target/ppc/mmu_common.c: Move BookE MMU functions together
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From: |
BALATON Zoltan |
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Subject: |
[PATCH 24/24] target/ppc/mmu_common.c: Move BookE MMU functions together |
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Date: |
Wed, 24 Apr 2024 00:31:35 +0200 (CEST) |
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
---
target/ppc/mmu_common.c | 300 ++++++++++++++++++++--------------------
1 file changed, 150 insertions(+), 150 deletions(-)
diff --git a/target/ppc/mmu_common.c b/target/ppc/mmu_common.c
index ad64ec1647..18e49aa2f1 100644
--- a/target/ppc/mmu_common.c
+++ b/target/ppc/mmu_common.c
@@ -915,6 +915,156 @@ found_tlb:
return ret;
}
+static void booke206_update_mas_tlb_miss(CPUPPCState *env, target_ulong
address,
+ MMUAccessType access_type, int
mmu_idx)
+{
+ uint32_t epid;
+ bool as, pr;
+ uint32_t missed_tid = 0;
+ bool use_epid = mmubooke206_get_as(env, mmu_idx, &epid, &as, &pr);
+
+ if (access_type == MMU_INST_FETCH) {
+ as = FIELD_EX64(env->msr, MSR, IR);
+ }
+ env->spr[SPR_BOOKE_MAS0] = env->spr[SPR_BOOKE_MAS4] & MAS4_TLBSELD_MASK;
+ env->spr[SPR_BOOKE_MAS1] = env->spr[SPR_BOOKE_MAS4] & MAS4_TSIZED_MASK;
+ env->spr[SPR_BOOKE_MAS2] = env->spr[SPR_BOOKE_MAS4] & MAS4_WIMGED_MASK;
+ env->spr[SPR_BOOKE_MAS3] = 0;
+ env->spr[SPR_BOOKE_MAS6] = 0;
+ env->spr[SPR_BOOKE_MAS7] = 0;
+
+ /* AS */
+ if (as) {
+ env->spr[SPR_BOOKE_MAS1] |= MAS1_TS;
+ env->spr[SPR_BOOKE_MAS6] |= MAS6_SAS;
+ }
+
+ env->spr[SPR_BOOKE_MAS1] |= MAS1_VALID;
+ env->spr[SPR_BOOKE_MAS2] |= address & MAS2_EPN_MASK;
+
+ if (!use_epid) {
+ switch (env->spr[SPR_BOOKE_MAS4] & MAS4_TIDSELD_PIDZ) {
+ case MAS4_TIDSELD_PID0:
+ missed_tid = env->spr[SPR_BOOKE_PID];
+ break;
+ case MAS4_TIDSELD_PID1:
+ missed_tid = env->spr[SPR_BOOKE_PID1];
+ break;
+ case MAS4_TIDSELD_PID2:
+ missed_tid = env->spr[SPR_BOOKE_PID2];
+ break;
+ }
+ env->spr[SPR_BOOKE_MAS6] |= env->spr[SPR_BOOKE_PID] << 16;
+ } else {
+ missed_tid = epid;
+ env->spr[SPR_BOOKE_MAS6] |= missed_tid << 16;
+ }
+ env->spr[SPR_BOOKE_MAS1] |= (missed_tid << MAS1_TID_SHIFT);
+
+
+ /* next victim logic */
+ env->spr[SPR_BOOKE_MAS0] |= env->last_way << MAS0_ESEL_SHIFT;
+ env->last_way++;
+ env->last_way &= booke206_tlb_ways(env, 0) - 1;
+ env->spr[SPR_BOOKE_MAS0] |= env->last_way << MAS0_NV_SHIFT;
+}
+
+static bool ppc_booke_xlate(PowerPCCPU *cpu, vaddr eaddr,
+ MMUAccessType access_type,
+ hwaddr *raddrp, int *psizep, int *protp,
+ int mmu_idx, bool guest_visible)
+{
+ CPUState *cs = CPU(cpu);
+ CPUPPCState *env = &cpu->env;
+ mmu_ctx_t ctx;
+ int ret;
+
+ if (env->mmu_model == POWERPC_MMU_BOOKE206) {
+ ret = mmubooke206_get_physical_address(env, &ctx, eaddr, access_type,
+ mmu_idx);
+ } else {
+ ret = mmubooke_get_physical_address(env, &ctx, eaddr, access_type);
+ }
+ if (ret == 0) {
+ *raddrp = ctx.raddr;
+ *protp = ctx.prot;
+ *psizep = TARGET_PAGE_BITS;
+ return true;
+ } else if (!guest_visible) {
+ return false;
+ }
+
+ log_cpu_state_mask(CPU_LOG_MMU, cs, 0);
+ env->error_code = 0;
+ if (env->mmu_model == POWERPC_MMU_BOOKE206 && ret == -1) {
+ booke206_update_mas_tlb_miss(env, eaddr, access_type, mmu_idx);
+ }
+ if (access_type == MMU_INST_FETCH) {
+ if (ret == -1) {
+ /* No matches in page tables or TLB */
+ cs->exception_index = POWERPC_EXCP_ITLB;
+ env->spr[SPR_BOOKE_DEAR] = eaddr;
+ env->spr[SPR_BOOKE_ESR] = mmubooke206_esr(mmu_idx, access_type);
+ } else {
+ cs->exception_index = POWERPC_EXCP_ISI;
+ if (ret == -3) {
+ /* No execute protection violation */
+ env->spr[SPR_BOOKE_ESR] = 0;
+ }
+ }
+ return false;
+ }
+
+ switch (ret) {
+ case -1:
+ /* No matches in page tables or TLB */
+ cs->exception_index = POWERPC_EXCP_DTLB;
+ env->spr[SPR_BOOKE_DEAR] = eaddr;
+ env->spr[SPR_BOOKE_ESR] = mmubooke206_esr(mmu_idx, access_type);
+ break;
+ case -2:
+ /* Access rights violation */
+ cs->exception_index = POWERPC_EXCP_DSI;
+ env->spr[SPR_BOOKE_DEAR] = eaddr;
+ env->spr[SPR_BOOKE_ESR] = mmubooke206_esr(mmu_idx, access_type);
+ break;
+ case -4:
+ /* Direct store exception */
+ env->spr[SPR_DAR] = eaddr;
+ switch (env->access_type) {
+ case ACCESS_FLOAT:
+ /* Floating point load/store */
+ cs->exception_index = POWERPC_EXCP_ALIGN;
+ env->error_code = POWERPC_EXCP_ALIGN_FP;
+ break;
+ case ACCESS_RES:
+ /* lwarx, ldarx or stwcx. */
+ cs->exception_index = POWERPC_EXCP_DSI;
+ if (access_type == MMU_DATA_STORE) {
+ env->spr[SPR_DSISR] = 0x06000000;
+ } else {
+ env->spr[SPR_DSISR] = 0x04000000;
+ }
+ break;
+ case ACCESS_EXT:
+ /* eciwx or ecowx */
+ cs->exception_index = POWERPC_EXCP_DSI;
+ if (access_type == MMU_DATA_STORE) {
+ env->spr[SPR_DSISR] = 0x06100000;
+ } else {
+ env->spr[SPR_DSISR] = 0x04100000;
+ }
+ break;
+ default:
+ printf("DSI: invalid exception (%d)\n", ret);
+ cs->exception_index = POWERPC_EXCP_PROGRAM;
+ env->error_code = POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL;
+ break;
+ }
+ }
+ return false;
+}
+
static const char *book3e_tsize_to_str[32] = {
"1K", "2K", "4K", "8K", "16K", "32K", "64K", "128K", "256K", "512K",
"1M", "2M", "4M", "8M", "16M", "32M", "64M", "128M", "256M", "512M",
@@ -1186,156 +1336,6 @@ static int get_physical_address_wtlb(CPUPPCState *env,
mmu_ctx_t *ctx,
}
}
-static void booke206_update_mas_tlb_miss(CPUPPCState *env, target_ulong
address,
- MMUAccessType access_type, int
mmu_idx)
-{
- uint32_t epid;
- bool as, pr;
- uint32_t missed_tid = 0;
- bool use_epid = mmubooke206_get_as(env, mmu_idx, &epid, &as, &pr);
-
- if (access_type == MMU_INST_FETCH) {
- as = FIELD_EX64(env->msr, MSR, IR);
- }
- env->spr[SPR_BOOKE_MAS0] = env->spr[SPR_BOOKE_MAS4] & MAS4_TLBSELD_MASK;
- env->spr[SPR_BOOKE_MAS1] = env->spr[SPR_BOOKE_MAS4] & MAS4_TSIZED_MASK;
- env->spr[SPR_BOOKE_MAS2] = env->spr[SPR_BOOKE_MAS4] & MAS4_WIMGED_MASK;
- env->spr[SPR_BOOKE_MAS3] = 0;
- env->spr[SPR_BOOKE_MAS6] = 0;
- env->spr[SPR_BOOKE_MAS7] = 0;
-
- /* AS */
- if (as) {
- env->spr[SPR_BOOKE_MAS1] |= MAS1_TS;
- env->spr[SPR_BOOKE_MAS6] |= MAS6_SAS;
- }
-
- env->spr[SPR_BOOKE_MAS1] |= MAS1_VALID;
- env->spr[SPR_BOOKE_MAS2] |= address & MAS2_EPN_MASK;
-
- if (!use_epid) {
- switch (env->spr[SPR_BOOKE_MAS4] & MAS4_TIDSELD_PIDZ) {
- case MAS4_TIDSELD_PID0:
- missed_tid = env->spr[SPR_BOOKE_PID];
- break;
- case MAS4_TIDSELD_PID1:
- missed_tid = env->spr[SPR_BOOKE_PID1];
- break;
- case MAS4_TIDSELD_PID2:
- missed_tid = env->spr[SPR_BOOKE_PID2];
- break;
- }
- env->spr[SPR_BOOKE_MAS6] |= env->spr[SPR_BOOKE_PID] << 16;
- } else {
- missed_tid = epid;
- env->spr[SPR_BOOKE_MAS6] |= missed_tid << 16;
- }
- env->spr[SPR_BOOKE_MAS1] |= (missed_tid << MAS1_TID_SHIFT);
-
-
- /* next victim logic */
- env->spr[SPR_BOOKE_MAS0] |= env->last_way << MAS0_ESEL_SHIFT;
- env->last_way++;
- env->last_way &= booke206_tlb_ways(env, 0) - 1;
- env->spr[SPR_BOOKE_MAS0] |= env->last_way << MAS0_NV_SHIFT;
-}
-
-static bool ppc_booke_xlate(PowerPCCPU *cpu, vaddr eaddr,
- MMUAccessType access_type,
- hwaddr *raddrp, int *psizep, int *protp,
- int mmu_idx, bool guest_visible)
-{
- CPUState *cs = CPU(cpu);
- CPUPPCState *env = &cpu->env;
- mmu_ctx_t ctx;
- int ret;
-
- if (env->mmu_model == POWERPC_MMU_BOOKE206) {
- ret = mmubooke206_get_physical_address(env, &ctx, eaddr, access_type,
- mmu_idx);
- } else {
- ret = mmubooke_get_physical_address(env, &ctx, eaddr, access_type);
- }
- if (ret == 0) {
- *raddrp = ctx.raddr;
- *protp = ctx.prot;
- *psizep = TARGET_PAGE_BITS;
- return true;
- } else if (!guest_visible) {
- return false;
- }
-
- log_cpu_state_mask(CPU_LOG_MMU, cs, 0);
- env->error_code = 0;
- if (env->mmu_model == POWERPC_MMU_BOOKE206 && ret == -1) {
- booke206_update_mas_tlb_miss(env, eaddr, access_type, mmu_idx);
- }
- if (access_type == MMU_INST_FETCH) {
- if (ret == -1) {
- /* No matches in page tables or TLB */
- cs->exception_index = POWERPC_EXCP_ITLB;
- env->spr[SPR_BOOKE_DEAR] = eaddr;
- env->spr[SPR_BOOKE_ESR] = mmubooke206_esr(mmu_idx, access_type);
- } else {
- cs->exception_index = POWERPC_EXCP_ISI;
- if (ret == -3) {
- /* No execute protection violation */
- env->spr[SPR_BOOKE_ESR] = 0;
- }
- }
- return false;
- }
-
- switch (ret) {
- case -1:
- /* No matches in page tables or TLB */
- cs->exception_index = POWERPC_EXCP_DTLB;
- env->spr[SPR_BOOKE_DEAR] = eaddr;
- env->spr[SPR_BOOKE_ESR] = mmubooke206_esr(mmu_idx, access_type);
- break;
- case -2:
- /* Access rights violation */
- cs->exception_index = POWERPC_EXCP_DSI;
- env->spr[SPR_BOOKE_DEAR] = eaddr;
- env->spr[SPR_BOOKE_ESR] = mmubooke206_esr(mmu_idx, access_type);
- break;
- case -4:
- /* Direct store exception */
- env->spr[SPR_DAR] = eaddr;
- switch (env->access_type) {
- case ACCESS_FLOAT:
- /* Floating point load/store */
- cs->exception_index = POWERPC_EXCP_ALIGN;
- env->error_code = POWERPC_EXCP_ALIGN_FP;
- break;
- case ACCESS_RES:
- /* lwarx, ldarx or stwcx. */
- cs->exception_index = POWERPC_EXCP_DSI;
- if (access_type == MMU_DATA_STORE) {
- env->spr[SPR_DSISR] = 0x06000000;
- } else {
- env->spr[SPR_DSISR] = 0x04000000;
- }
- break;
- case ACCESS_EXT:
- /* eciwx or ecowx */
- cs->exception_index = POWERPC_EXCP_DSI;
- if (access_type == MMU_DATA_STORE) {
- env->spr[SPR_DSISR] = 0x06100000;
- } else {
- env->spr[SPR_DSISR] = 0x04100000;
- }
- break;
- default:
- printf("DSI: invalid exception (%d)\n", ret);
- cs->exception_index = POWERPC_EXCP_PROGRAM;
- env->error_code = POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL;
- break;
- }
- }
- return false;
-}
-
/* Perform address translation */
/* TODO: Split this by mmu_model. */
static bool ppc_jumbo_xlate(PowerPCCPU *cpu, vaddr eaddr,
--
2.30.9
- [PATCH 02/24] target/ppc: Move patching nip from exception handler to helper_scv, (continued)
- [PATCH 02/24] target/ppc: Move patching nip from exception handler to helper_scv, BALATON Zoltan, 2024/04/23
- [PATCH 04/24] target/ppc: Remove unused helper, BALATON Zoltan, 2024/04/23
- [PATCH 15/24] target/ppc/mmu_common.c: Fix misindented qemu_log_mask() calls, BALATON Zoltan, 2024/04/23
- [PATCH 14/24] target/ppc/mmu_common.c: Simplify mmubooke206_get_physical_address(), BALATON Zoltan, 2024/04/23
- [PATCH 03/24] target/ppc: Simplify syscall exception handlers, BALATON Zoltan, 2024/04/23
- [PATCH 06/24] target/ppc/mmu_common.c: Simplify checking for real mode, BALATON Zoltan, 2024/04/23
- [PATCH 12/24] target/ppc/mmu_common.c: Inline and remove check_physical(), BALATON Zoltan, 2024/04/23
- [PATCH 20/24] target/ppc: Remove ppc_hash32_pp_prot() and reuse common function, BALATON Zoltan, 2024/04/23
- [PATCH 21/24] target/ppc/mmu_common.c: Split off BookE handling from ppc_jumbo_xlate(), BALATON Zoltan, 2024/04/23
- [PATCH 23/24] target/ppc/mmu_common.c: Simplify ppc_booke_xlate(), BALATON Zoltan, 2024/04/23
- [PATCH 24/24] target/ppc/mmu_common.c: Move BookE MMU functions together,
BALATON Zoltan <=
- [PATCH 22/24] target/ppc/mmu_common.c: Remove BookE handling from get_physical_address_wtlb(), BALATON Zoltan, 2024/04/23