int exception, error_code;
if (rw == 2) {
- exception = EXCP_ISI;
+ exception = POWERPC_EXCP_ISI;
error_code = 0;
} else {
- exception = EXCP_DSI;
+ exception = POWERPC_EXCP_DSI;
error_code = 0;
if (rw)
error_code |= 0x02000000;
*pte0 &= ~0x80000000;
}
+#if defined(TARGET_PPC64)
+static inline int pte64_is_valid (target_ulong pte0)
+{
+ return pte0 & 0x0000000000000001ULL ? 1 : 0;
+}
+
+static inline void pte64_invalidate (target_ulong *pte0)
+{
+ *pte0 &= ~0x0000000000000001ULL;
+}
+#endif
+
#define PTE_PTEM_MASK 0x7FFFFFBF
#define PTE_CHECK_MASK (TARGET_PAGE_MASK | 0x7B)
+#if defined(TARGET_PPC64)
+#define PTE64_PTEM_MASK 0xFFFFFFFFFFFFFF80ULL
+#define PTE64_CHECK_MASK (TARGET_PAGE_MASK | 0x7F)
+#endif
-static int pte_check (mmu_ctx_t *ctx,
- target_ulong pte0, target_ulong pte1, int h, int rw)
+static inline int _pte_check (mmu_ctx_t *ctx, int is_64b,
+ target_ulong pte0, target_ulong pte1,
+ int h, int rw)
{
- int access, ret;
+ target_ulong ptem, mmask;
+ int access, ret, pteh, ptev;
access = 0;
ret = -1;
/* Check validity and table match */
- if (pte_is_valid(pte0) && (h == ((pte0 >> 6) & 1))) {
+#if defined(TARGET_PPC64)
+ if (is_64b) {
+ ptev = pte64_is_valid(pte0);
+ pteh = (pte0 >> 1) & 1;
+ } else
+#endif
+ {
+ ptev = pte_is_valid(pte0);
+ pteh = (pte0 >> 6) & 1;
+ }
+ if (ptev && h == pteh) {
/* Check vsid & api */
- if ((pte0 & PTE_PTEM_MASK) == ctx->ptem) {
+#if defined(TARGET_PPC64)
+ if (is_64b) {
+ ptem = pte0 & PTE64_PTEM_MASK;
+ mmask = PTE64_CHECK_MASK;
+ } else
+#endif
+ {
+ ptem = pte0 & PTE_PTEM_MASK;
+ mmask = PTE_CHECK_MASK;
+ }
+ if (ptem == ctx->ptem) {
if (ctx->raddr != (target_ulong)-1) {
/* all matches should have equal RPN, WIMG & PP */
- if ((ctx->raddr & PTE_CHECK_MASK) != (pte1 & PTE_CHECK_MASK)) {
- if (loglevel > 0)
+ if ((ctx->raddr & mmask) != (pte1 & mmask)) {
+ if (loglevel != 0)
fprintf(logfile, "Bad RPN/WIMG/PP\n");
return -3;
}
return ret;
}
+static int pte32_check (mmu_ctx_t *ctx,
+ target_ulong pte0, target_ulong pte1, int h, int rw)
+{
+ return _pte_check(ctx, 0, pte0, pte1, h, rw);
+}
+
+#if defined(TARGET_PPC64)
+static int pte64_check (mmu_ctx_t *ctx,
+ target_ulong pte0, target_ulong pte1, int h, int rw)
+{
+ return _pte_check(ctx, 1, pte0, pte1, h, rw);
+}
+#endif
+
static int pte_update_flags (mmu_ctx_t *ctx, target_ulong *pte1p,
int ret, int rw)
{
rw ? 'S' : 'L', access_type == ACCESS_CODE ? 'I' : 'D');
}
#endif
- switch (pte_check(ctx, tlb->pte0, tlb->pte1, 0, rw)) {
+ switch (pte32_check(ctx, tlb->pte0, tlb->pte1, 0, rw)) {
case -3:
/* TLB inconsistency */
return -1;
}
/* PTE table lookup */
-static int find_pte (mmu_ctx_t *ctx, int h, int rw)
+static inline int _find_pte (mmu_ctx_t *ctx, int is_64b, int h, int rw)
{
target_ulong base, pte0, pte1;
int i, good = -1;
- int ret;
+ int ret, r;
ret = -1; /* No entry found */
base = ctx->pg_addr[h];
for (i = 0; i < 8; i++) {
- pte0 = ldl_phys(base + (i * 8));
- pte1 = ldl_phys(base + (i * 8) + 4);
+#if defined(TARGET_PPC64)
+ if (is_64b) {
+ pte0 = ldq_phys(base + (i * 16));
+ pte1 = ldq_phys(base + (i * 16) + 8);
+ r = pte64_check(ctx, pte0, pte1, h, rw);
+ } else
+#endif
+ {
+ pte0 = ldl_phys(base + (i * 8));
+ pte1 = ldl_phys(base + (i * 8) + 4);
+ r = pte32_check(ctx, pte0, pte1, h, rw);
+ }
#if defined (DEBUG_MMU)
- if (loglevel > 0) {
+ if (loglevel != 0) {
fprintf(logfile, "Load pte from 0x" ADDRX " => 0x" ADDRX
" 0x" ADDRX " %d %d %d 0x" ADDRX "\n",
base + (i * 8), pte0, pte1,
- pte0 >> 31, h, (pte0 >> 6) & 1, ctx->ptem);
+ (int)(pte0 >> 31), h, (int)((pte0 >> 6) & 1), ctx->ptem);
}
#endif
- switch (pte_check(ctx, pte0, pte1, h, rw)) {
+ switch (r) {
case -3:
/* PTE inconsistency */
return -1;
#endif
/* Update page flags */
pte1 = ctx->raddr;
- if (pte_update_flags(ctx, &pte1, ret, rw) == 1)
- stl_phys_notdirty(base + (good * 8) + 4, pte1);
+ if (pte_update_flags(ctx, &pte1, ret, rw) == 1) {
+#if defined(TARGET_PPC64)
+ if (is_64b) {
+ stq_phys_notdirty(base + (good * 16) + 8, pte1);
+ } else
+#endif
+ {
+ stl_phys_notdirty(base + (good * 8) + 4, pte1);
+ }
+ }
}
return ret;
}
+static int find_pte32 (mmu_ctx_t *ctx, int h, int rw)
+{
+ return _find_pte(ctx, 0, h, rw);
+}
+
+#if defined(TARGET_PPC64)
+static int find_pte64 (mmu_ctx_t *ctx, int h, int rw)
+{
+ return _find_pte(ctx, 1, h, rw);
+}
+#endif
+
+static inline int find_pte (CPUState *env, mmu_ctx_t *ctx, int h, int rw)
+{
+#if defined(TARGET_PPC64)
+ if (env->mmu_model == POWERPC_MMU_64B ||
+ env->mmu_model == POWERPC_MMU_64BRIDGE)
+ return find_pte64(ctx, h, rw);
+#endif
+
+ return find_pte32(ctx, h, rw);
+}
+
static inline target_phys_addr_t get_pgaddr (target_phys_addr_t sdr1,
+ int sdr_sh,
target_phys_addr_t hash,
target_phys_addr_t mask)
{
- return (sdr1 & 0xFFFF0000) | (hash & mask);
+ return (sdr1 & ((target_ulong)(-1ULL) << sdr_sh)) | (hash & mask);
+}
+
+#if defined(TARGET_PPC64)
+static int slb_lookup (CPUState *env, target_ulong eaddr,
+ target_ulong *vsid, target_ulong *page_mask, int *attr)
+{
+ target_phys_addr_t sr_base;
+ target_ulong mask;
+ uint64_t tmp64;
+ uint32_t tmp;
+ int n, ret;
+ int slb_nr;
+
+ ret = -5;
+ sr_base = env->spr[SPR_ASR];
+ mask = 0x0000000000000000ULL; /* Avoid gcc warning */
+#if 0 /* XXX: Fix this */
+ slb_nr = env->slb_nr;
+#else
+ slb_nr = 32;
+#endif
+ for (n = 0; n < slb_nr; n++) {
+ tmp64 = ldq_phys(sr_base);
+ if (tmp64 & 0x0000000008000000ULL) {
+ /* SLB entry is valid */
+ switch (tmp64 & 0x0000000006000000ULL) {
+ case 0x0000000000000000ULL:
+ /* 256 MB segment */
+ mask = 0xFFFFFFFFF0000000ULL;
+ break;
+ case 0x0000000002000000ULL:
+ /* 1 TB segment */
+ mask = 0xFFFF000000000000ULL;
+ break;
+ case 0x0000000004000000ULL:
+ case 0x0000000006000000ULL:
+ /* Reserved => segment is invalid */
+ continue;
+ }
+ if ((eaddr & mask) == (tmp64 & mask)) {
+ /* SLB match */
+ tmp = ldl_phys(sr_base + 8);
+ *vsid = ((tmp64 << 24) | (tmp >> 8)) & 0x0003FFFFFFFFFFFFULL;
+ *page_mask = ~mask;
+ *attr = tmp & 0xFF;
+ ret = 0;
+ break;
+ }
+ }
+ sr_base += 12;
+ }
+
+ return ret;
}
+#endif /* defined(TARGET_PPC64) */
/* Perform segment based translation */
static int get_segment (CPUState *env, mmu_ctx_t *ctx,
target_ulong eaddr, int rw, int type)
{
- target_phys_addr_t sdr, hash, mask;
- target_ulong sr, vsid, pgidx;
- int ret = -1, ret2;
-
- sr = env->sr[eaddr >> 28];
-#if defined (DEBUG_MMU)
- if (loglevel > 0) {
- fprintf(logfile, "Check segment v=0x" ADDRX " %d 0x" ADDRX " nip=0x"
- ADDRX " lr=0x" ADDRX " ir=%d dr=%d pr=%d %d t=%d\n",
- eaddr, eaddr >> 28, sr, env->nip,
- env->lr, msr_ir, msr_dr, msr_pr, rw, type);
- }
+ target_phys_addr_t sdr, hash, mask, sdr_mask;
+ target_ulong sr, vsid, vsid_mask, pgidx, page_mask;
+#if defined(TARGET_PPC64)
+ int attr;
#endif
- ctx->key = (((sr & 0x20000000) && msr_pr == 1) ||
- ((sr & 0x40000000) && msr_pr == 0)) ? 1 : 0;
- if ((sr & 0x80000000) == 0) {
+ int ds, nx, vsid_sh, sdr_sh;
+ int ret, ret2;
+
+#if defined(TARGET_PPC64)
+ if (env->mmu_model == POWERPC_MMU_64B) {
+ ret = slb_lookup(env, eaddr, &vsid, &page_mask, &attr);
+ if (ret < 0)
+ return ret;
+ ctx->key = ((attr & 0x40) && msr_pr == 1) ||
+ ((attr & 0x80) && msr_pr == 0) ? 1 : 0;
+ ds = 0;
+ nx = attr & 0x20 ? 1 : 0;
+ vsid_mask = 0x00003FFFFFFFFF80ULL;
+ vsid_sh = 7;
+ sdr_sh = 18;
+ sdr_mask = 0x3FF80;
+ } else
+#endif /* defined(TARGET_PPC64) */
+ {
+ sr = env->sr[eaddr >> 28];
+ page_mask = 0x0FFFFFFF;
+ ctx->key = (((sr & 0x20000000) && msr_pr == 1) ||
+ ((sr & 0x40000000) && msr_pr == 0)) ? 1 : 0;
+ ds = sr & 0x80000000 ? 1 : 0;
+ nx = sr & 0x10000000 ? 1 : 0;
+ vsid = sr & 0x00FFFFFF;
+ vsid_mask = 0x01FFFFC0;
+ vsid_sh = 6;
+ sdr_sh = 16;
+ sdr_mask = 0xFFC0;
#if defined (DEBUG_MMU)
- if (loglevel > 0)
+ if (loglevel != 0) {
+ fprintf(logfile, "Check segment v=0x" ADDRX " %d 0x" ADDRX
+ " nip=0x" ADDRX " lr=0x" ADDRX
+ " ir=%d dr=%d pr=%d %d t=%d\n",
+ eaddr, (int)(eaddr >> 28), sr, env->nip,
+ env->lr, msr_ir, msr_dr, msr_pr, rw, type);
+ }
+ if (!ds && loglevel != 0) {
fprintf(logfile, "pte segment: key=%d n=0x" ADDRX "\n",
ctx->key, sr & 0x10000000);
+ }
#endif
+ }
+ ret = -1;
+ if (!ds) {
/* Check if instruction fetch is allowed, if needed */
- if (type != ACCESS_CODE || (sr & 0x10000000) == 0) {
+ if (type != ACCESS_CODE || nx == 0) {
/* Page address translation */
- pgidx = (eaddr >> TARGET_PAGE_BITS) & 0xFFFF;
- vsid = sr & 0x00FFFFFF;
- hash = ((vsid ^ pgidx) & 0x0007FFFF) << 6;
+ pgidx = (eaddr & page_mask) >> TARGET_PAGE_BITS;
+ hash = ((vsid ^ pgidx) << vsid_sh) & vsid_mask;
/* Primary table address */
sdr = env->sdr1;
- mask = ((sdr & 0x000001FF) << 16) | 0xFFC0;
- ctx->pg_addr[0] = get_pgaddr(sdr, hash, mask);
+ mask = ((sdr & 0x000001FF) << sdr_sh) | sdr_mask;
+ ctx->pg_addr[0] = get_pgaddr(sdr, sdr_sh, hash, mask);
/* Secondary table address */
- hash = (~hash) & 0x01FFFFC0;
- ctx->pg_addr[1] = get_pgaddr(sdr, hash, mask);
- ctx->ptem = (vsid << 7) | (pgidx >> 10);
+ hash = (~hash) & vsid_mask;
+ ctx->pg_addr[1] = get_pgaddr(sdr, sdr_sh, hash, mask);
+#if defined(TARGET_PPC64)
+ if (env->mmu_model == POWERPC_MMU_64B ||
+ env->mmu_model == POWERPC_MMU_64BRIDGE) {
+ /* Only 5 bits of the page index are used in the AVPN */
+ ctx->ptem = (vsid << 12) | ((pgidx >> 4) & 0x0F80);
+ } else
+#endif
+ {
+ ctx->ptem = (vsid << 7) | (pgidx >> 10);
+ }
/* Initialize real address with an invalid value */
ctx->raddr = (target_ulong)-1;
- if (unlikely(PPC_MMU(env) == PPC_FLAGS_MMU_SOFT_6xx)) {
+ if (unlikely(env->mmu_model == POWERPC_MMU_SOFT_6xx)) {
/* Software TLB search */
ret = ppc6xx_tlb_check(env, ctx, eaddr, rw, type);
} else {
}
#endif
/* Primary table lookup */
- ret = find_pte(ctx, 0, rw);
+ ret = find_pte(env, ctx, 0, rw);
if (ret < 0) {
/* Secondary table lookup */
#if defined (DEBUG_MMU)
(uint32_t)hash, ctx->pg_addr[1]);
}
#endif
- ret2 = find_pte(ctx, 1, rw);
+ ret2 = find_pte(env, ctx, 1, rw);
if (ret2 != -1)
ret = ret2;
}
if ((address & mask) != tlb->EPN)
return -1;
*raddrp = (tlb->RPN & mask) | (address & ~mask);
+#if (TARGET_PHYS_ADDR_BITS >= 36)
if (ext) {
/* Extend the physical address to 36 bits */
*raddrp |= (target_phys_addr_t)(tlb->RPN & 0xF) << 32;
}
+#endif
return 0;
}
/* Default return value is no match */
ret = -1;
- for (i = 0; i < 64; i++) {
+ for (i = 0; i < env->nb_tlb; i++) {
tlb = &env->tlb[i].tlbe;
if (ppcemb_tlb_check(env, tlb, &raddr, address, pid, 0, i) == 0) {
ret = i;
return ret;
}
+void ppc4xx_tlb_invalidate_virt (CPUState *env, target_ulong eaddr,
+ uint32_t pid)
+{
+ ppcemb_tlb_t *tlb;
+ target_phys_addr_t raddr;
+ target_ulong page, end;
+ int i;
+
+ for (i = 0; i < env->nb_tlb; i++) {
+ tlb = &env->tlb[i].tlbe;
+ if (ppcemb_tlb_check(env, tlb, &raddr, eaddr, pid, 0, i) == 0) {
+ end = tlb->EPN + tlb->size;
+ for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE)
+ tlb_flush_page(env, page);
+ tlb->prot &= ~PAGE_VALID;
+ break;
+ }
+ }
+}
+
/* Helpers specific to PowerPC 40x implementations */
void ppc4xx_tlb_invalidate_all (CPUState *env)
{
env->spr[SPR_405_SLER] = val;
}
+int mmubooke_get_physical_address (CPUState *env, mmu_ctx_t *ctx,
+ target_ulong address, int rw,
+ int access_type)
+{
+ ppcemb_tlb_t *tlb;
+ target_phys_addr_t raddr;
+ int i, prot, ret;
+
+ ret = -1;
+ raddr = -1;
+ for (i = 0; i < env->nb_tlb; i++) {
+ tlb = &env->tlb[i].tlbe;
+ if (ppcemb_tlb_check(env, tlb, &raddr, address,
+ env->spr[SPR_BOOKE_PID], 1, i) < 0)
+ continue;
+ if (msr_pr)
+ prot = tlb->prot & 0xF;
+ else
+ prot = (tlb->prot >> 4) & 0xF;
+ /* Check the address space */
+ if (access_type == ACCESS_CODE) {
+ if (msr_is != (tlb->attr & 1))
+ continue;
+ ctx->prot = prot;
+ if (prot & PAGE_EXEC) {
+ ret = 0;
+ break;
+ }
+ ret = -3;
+ } else {
+ if (msr_ds != (tlb->attr & 1))
+ continue;
+ ctx->prot = prot;
+ if ((!rw && prot & PAGE_READ) || (rw && (prot & PAGE_WRITE))) {
+ ret = 0;
+ break;
+ }
+ ret = -2;
+ }
+ }
+ if (ret >= 0)
+ ctx->raddr = raddr;
+
+ return ret;
+}
+
static int check_physical (CPUState *env, mmu_ctx_t *ctx,
target_ulong eaddr, int rw)
{
ctx->raddr = eaddr;
ctx->prot = PAGE_READ;
ret = 0;
- if (unlikely(msr_pe != 0 && PPC_MMU(env) == PPC_FLAGS_MMU_403)) {
- /* 403 family add some particular protections,
- * using PBL/PBU registers for accesses with no translation.
- */
- in_plb =
- /* Check PLB validity */
- (env->pb[0] < env->pb[1] &&
- /* and address in plb area */
- eaddr >= env->pb[0] && eaddr < env->pb[1]) ||
- (env->pb[2] < env->pb[3] &&
- eaddr >= env->pb[2] && eaddr < env->pb[3]) ? 1 : 0;
- if (in_plb ^ msr_px) {
- /* Access in protected area */
- if (rw == 1) {
- /* Access is not allowed */
- ret = -2;
+ switch (env->mmu_model) {
+ case POWERPC_MMU_32B:
+ case POWERPC_MMU_SOFT_6xx:
+ case POWERPC_MMU_601:
+ case POWERPC_MMU_SOFT_4xx:
+ case POWERPC_MMU_REAL_4xx:
+ ctx->prot |= PAGE_WRITE;
+ break;
+#if defined(TARGET_PPC64)
+ case POWERPC_MMU_64B:
+ case POWERPC_MMU_64BRIDGE:
+ /* Real address are 60 bits long */
+ ctx->raddr &= 0x0FFFFFFFFFFFFFFFULL;
+ ctx->prot |= PAGE_WRITE;
+ break;
+#endif
+ case POWERPC_MMU_SOFT_4xx_Z:
+ if (unlikely(msr_pe != 0)) {
+ /* 403 family add some particular protections,
+ * using PBL/PBU registers for accesses with no translation.
+ */
+ in_plb =
+ /* Check PLB validity */
+ (env->pb[0] < env->pb[1] &&
+ /* and address in plb area */
+ eaddr >= env->pb[0] && eaddr < env->pb[1]) ||
+ (env->pb[2] < env->pb[3] &&
+ eaddr >= env->pb[2] && eaddr < env->pb[3]) ? 1 : 0;
+ if (in_plb ^ msr_px) {
+ /* Access in protected area */
+ if (rw == 1) {
+ /* Access is not allowed */
+ ret = -2;
+ }
+ } else {
+ /* Read-write access is allowed */
+ ctx->prot |= PAGE_WRITE;
}
- } else {
- /* Read-write access is allowed */
- ctx->prot |= PAGE_WRITE;
}
- } else {
+ break;
+ case POWERPC_MMU_BOOKE:
ctx->prot |= PAGE_WRITE;
+ break;
+ case POWERPC_MMU_BOOKE_FSL:
+ /* XXX: TODO */
+ cpu_abort(env, "BookE FSL MMU model not implemented\n");
+ break;
+ default:
+ cpu_abort(env, "Unknown or invalid MMU model\n");
+ return -1;
}
return ret;
ret = check_physical(env, ctx, eaddr, rw);
} else {
ret = -1;
- switch (PPC_MMU(env)) {
- case PPC_FLAGS_MMU_32B:
- case PPC_FLAGS_MMU_SOFT_6xx:
+ switch (env->mmu_model) {
+ case POWERPC_MMU_32B:
+ case POWERPC_MMU_SOFT_6xx:
/* Try to find a BAT */
if (check_BATs)
ret = get_bat(env, ctx, eaddr, rw, access_type);
/* No break here */
#if defined(TARGET_PPC64)
- case PPC_FLAGS_MMU_64B:
- case PPC_FLAGS_MMU_64BRIDGE:
+ case POWERPC_MMU_64B:
+ case POWERPC_MMU_64BRIDGE:
#endif
if (ret < 0) {
/* We didn't match any BAT entry or don't have BATs */
ret = get_segment(env, ctx, eaddr, rw, access_type);
}
break;
- case PPC_FLAGS_MMU_SOFT_4xx:
- case PPC_FLAGS_MMU_403:
+ case POWERPC_MMU_SOFT_4xx:
+ case POWERPC_MMU_SOFT_4xx_Z:
ret = mmu40x_get_physical_address(env, ctx, eaddr,
rw, access_type);
break;
- case PPC_FLAGS_MMU_601:
+ case POWERPC_MMU_601:
/* XXX: TODO */
cpu_abort(env, "601 MMU model not implemented\n");
return -1;
- case PPC_FLAGS_MMU_BOOKE:
- /* XXX: TODO */
- cpu_abort(env, "BookeE MMU model not implemented\n");
- return -1;
- case PPC_FLAGS_MMU_BOOKE_FSL:
+ case POWERPC_MMU_BOOKE:
+ ret = mmubooke_get_physical_address(env, ctx, eaddr,
+ rw, access_type);
+ break;
+ case POWERPC_MMU_BOOKE_FSL:
/* XXX: TODO */
cpu_abort(env, "BookE FSL MMU model not implemented\n");
return -1;
+ case POWERPC_MMU_REAL_4xx:
+ cpu_abort(env, "PowerPC 401 does not do any translation\n");
+ return -1;
default:
cpu_abort(env, "Unknown or invalid MMU model\n");
return -1;
cpu_dump_state(env, logfile, fprintf, 0);
#endif
if (access_type == ACCESS_CODE) {
- exception = EXCP_ISI;
+ exception = POWERPC_EXCP_ISI;
switch (ret) {
case -1:
/* No matches in page tables or TLB */
- switch (PPC_MMU(env)) {
- case PPC_FLAGS_MMU_SOFT_6xx:
- exception = EXCP_I_TLBMISS;
+ switch (env->mmu_model) {
+ case POWERPC_MMU_SOFT_6xx:
+ exception = POWERPC_EXCP_IFTLB;
env->spr[SPR_IMISS] = address;
env->spr[SPR_ICMP] = 0x80000000 | ctx.ptem;
error_code = 1 << 18;
goto tlb_miss;
- case PPC_FLAGS_MMU_SOFT_4xx:
- case PPC_FLAGS_MMU_403:
- exception = EXCP_40x_ITLBMISS;
+ case POWERPC_MMU_SOFT_4xx:
+ case POWERPC_MMU_SOFT_4xx_Z:
+ exception = POWERPC_EXCP_ITLB;
error_code = 0;
env->spr[SPR_40x_DEAR] = address;
env->spr[SPR_40x_ESR] = 0x00000000;
break;
- case PPC_FLAGS_MMU_32B:
+ case POWERPC_MMU_32B:
error_code = 0x40000000;
break;
#if defined(TARGET_PPC64)
- case PPC_FLAGS_MMU_64B:
+ case POWERPC_MMU_64B:
/* XXX: TODO */
cpu_abort(env, "MMU model not implemented\n");
return -1;
- case PPC_FLAGS_MMU_64BRIDGE:
+ case POWERPC_MMU_64BRIDGE:
/* XXX: TODO */
cpu_abort(env, "MMU model not implemented\n");
return -1;
#endif
- case PPC_FLAGS_MMU_601:
+ case POWERPC_MMU_601:
/* XXX: TODO */
cpu_abort(env, "MMU model not implemented\n");
return -1;
- case PPC_FLAGS_MMU_BOOKE:
+ case POWERPC_MMU_BOOKE:
/* XXX: TODO */
cpu_abort(env, "MMU model not implemented\n");
return -1;
- case PPC_FLAGS_MMU_BOOKE_FSL:
+ case POWERPC_MMU_BOOKE_FSL:
/* XXX: TODO */
cpu_abort(env, "MMU model not implemented\n");
return -1;
+ case POWERPC_MMU_REAL_4xx:
+ cpu_abort(env, "PowerPC 401 should never raise any MMU "
+ "exceptions\n");
+ return -1;
default:
cpu_abort(env, "Unknown or invalid MMU model\n");
return -1;
/* No code fetch is allowed in direct-store areas */
error_code = 0x10000000;
break;
+#if defined(TARGET_PPC64)
case -5:
/* No match in segment table */
- exception = EXCP_ISEG;
+ exception = POWERPC_EXCP_ISEG;
error_code = 0;
break;
+#endif
}
} else {
- exception = EXCP_DSI;
+ exception = POWERPC_EXCP_DSI;
switch (ret) {
case -1:
/* No matches in page tables or TLB */
- switch (PPC_MMU(env)) {
- case PPC_FLAGS_MMU_SOFT_6xx:
+ switch (env->mmu_model) {
+ case POWERPC_MMU_SOFT_6xx:
if (rw == 1) {
- exception = EXCP_DS_TLBMISS;
+ exception = POWERPC_EXCP_DSTLB;
error_code = 1 << 16;
} else {
- exception = EXCP_DL_TLBMISS;
+ exception = POWERPC_EXCP_DLTLB;
error_code = 0;
}
env->spr[SPR_DMISS] = address;
env->spr[SPR_HASH2] = ctx.pg_addr[1];
/* Do not alter DAR nor DSISR */
goto out;
- case PPC_FLAGS_MMU_SOFT_4xx:
- case PPC_FLAGS_MMU_403:
- exception = EXCP_40x_DTLBMISS;
+ case POWERPC_MMU_SOFT_4xx:
+ case POWERPC_MMU_SOFT_4xx_Z:
+ exception = POWERPC_EXCP_DTLB;
error_code = 0;
env->spr[SPR_40x_DEAR] = address;
if (rw)
else
env->spr[SPR_40x_ESR] = 0x00000000;
break;
- case PPC_FLAGS_MMU_32B:
+ case POWERPC_MMU_32B:
error_code = 0x40000000;
break;
#if defined(TARGET_PPC64)
- case PPC_FLAGS_MMU_64B:
+ case POWERPC_MMU_64B:
/* XXX: TODO */
cpu_abort(env, "MMU model not implemented\n");
return -1;
- case PPC_FLAGS_MMU_64BRIDGE:
+ case POWERPC_MMU_64BRIDGE:
/* XXX: TODO */
cpu_abort(env, "MMU model not implemented\n");
return -1;
#endif
- case PPC_FLAGS_MMU_601:
+ case POWERPC_MMU_601:
/* XXX: TODO */
cpu_abort(env, "MMU model not implemented\n");
return -1;
- case PPC_FLAGS_MMU_BOOKE:
+ case POWERPC_MMU_BOOKE:
/* XXX: TODO */
cpu_abort(env, "MMU model not implemented\n");
return -1;
- case PPC_FLAGS_MMU_BOOKE_FSL:
+ case POWERPC_MMU_BOOKE_FSL:
/* XXX: TODO */
cpu_abort(env, "MMU model not implemented\n");
return -1;
+ case POWERPC_MMU_REAL_4xx:
+ cpu_abort(env, "PowerPC 401 should never raise any MMU "
+ "exceptions\n");
+ return -1;
default:
cpu_abort(env, "Unknown or invalid MMU model\n");
return -1;
switch (access_type) {
case ACCESS_FLOAT:
/* Floating point load/store */
- exception = EXCP_ALIGN;
- error_code = EXCP_ALIGN_FP;
+ exception = POWERPC_EXCP_ALIGN;
+ error_code = POWERPC_EXCP_ALIGN_FP;
break;
case ACCESS_RES:
/* lwarx, ldarx or srwcx. */
break;
default:
printf("DSI: invalid exception (%d)\n", ret);
- exception = EXCP_PROGRAM;
- error_code = EXCP_INVAL | EXCP_INVAL_INVAL;
+ exception = POWERPC_EXCP_PROGRAM;
+ error_code = POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL;
break;
}
break;
+#if defined(TARGET_PPC64)
case -5:
/* No match in segment table */
- exception = EXCP_DSEG;
+ exception = POWERPC_EXCP_DSEG;
error_code = 0;
break;
+#endif
}
- if (exception == EXCP_DSI && rw == 1)
+ if (exception == POWERPC_EXCP_DSI && rw == 1)
error_code |= 0x02000000;
/* Store fault address */
env->spr[SPR_DAR] = address;
/* TLB management */
void ppc_tlb_invalidate_all (CPUPPCState *env)
{
- if (unlikely(PPC_MMU(env) == PPC_FLAGS_MMU_SOFT_6xx)) {
+ if (unlikely(env->mmu_model == POWERPC_MMU_SOFT_6xx)) {
ppc6xx_tlb_invalidate_all(env);
- } else if (unlikely(PPC_MMU(env) == PPC_FLAGS_MMU_SOFT_4xx)) {
+ } else if (unlikely(env->mmu_model == POWERPC_MMU_SOFT_4xx)) {
ppc4xx_tlb_invalidate_all(env);
} else {
tlb_flush(env, 1);
fprintf(logfile, "%s: T0 %08lx\n", __func__, value);
}
#endif
- switch (PPC_EXCP(env)) {
- case PPC_FLAGS_EXCP_602:
- case PPC_FLAGS_EXCP_603:
+ switch (env->excp_model) {
+ case POWERPC_EXCP_602:
+ case POWERPC_EXCP_603:
+ case POWERPC_EXCP_603E:
+ case POWERPC_EXCP_G2:
if (((value >> MSR_TGPR) & 1) != msr_tgpr) {
/* Swap temporary saved registers with GPRs */
swap_gpr_tgpr(env);
do_compute_hflags(env);
enter_pm = 0;
- switch (PPC_EXCP(env)) {
- case PPC_FLAGS_EXCP_603:
+ switch (env->excp_model) {
+ case POWERPC_EXCP_603:
+ case POWERPC_EXCP_603E:
+ case POWERPC_EXCP_G2:
/* Don't handle SLEEP mode: we should disable all clocks...
* No dynamic power-management.
*/
if (msr_pow == 1 && (env->spr[SPR_HID0] & 0x00C00000) != 0)
enter_pm = 1;
break;
- case PPC_FLAGS_EXCP_604:
+ case POWERPC_EXCP_604:
if (msr_pow == 1)
enter_pm = 1;
break;
- case PPC_FLAGS_EXCP_7x0:
+ case POWERPC_EXCP_7x0:
if (msr_pow == 1 && (env->spr[SPR_HID0] & 0x00E00000) != 0)
enter_pm = 1;
break;
void do_compute_hflags (CPUPPCState *env)
{
/* Compute current hflags */
- env->hflags = (msr_cm << MSR_CM) | (msr_vr << MSR_VR) |
+ env->hflags = (msr_vr << MSR_VR) |
(msr_ap << MSR_AP) | (msr_sa << MSR_SA) | (msr_pr << MSR_PR) |
(msr_fp << MSR_FP) | (msr_fe0 << MSR_FE0) | (msr_se << MSR_SE) |
(msr_be << MSR_BE) | (msr_fe1 << MSR_FE1) | (msr_le << MSR_LE);
#if defined (TARGET_PPC64)
- /* No care here: PowerPC 64 MSR_SF means the same as MSR_CM for BookE */
- env->hflags |= (msr_sf << (MSR_SF - 32)) | (msr_hv << (MSR_HV - 32));
+ env->hflags |= msr_cm << MSR_CM;
+ env->hflags |= (uint64_t)msr_sf << MSR_SF;
+ env->hflags |= (uint64_t)msr_hv << MSR_HV;
#endif
}
#if defined (CONFIG_USER_ONLY)
void do_interrupt (CPUState *env)
{
- env->exception_index = -1;
+ env->exception_index = POWERPC_EXCP_NONE;
+ env->error_code = 0;
}
void ppc_hw_interrupt (CPUState *env)
{
- env->exception_index = -1;
+ env->exception_index = POWERPC_EXCP_NONE;
+ env->error_code = 0;
}
#else /* defined (CONFIG_USER_ONLY) */
static void dump_syscall (CPUState *env)
env->gpr[5], env->gpr[6], env->nip);
}
-void do_interrupt (CPUState *env)
+/* Note that this function should be greatly optimized
+ * when called with a constant excp, from ppc_hw_interrupt
+ */
+static always_inline void powerpc_excp (CPUState *env,
+ int excp_model, int excp)
{
- target_ulong msr, *srr_0, *srr_1, *asrr_0, *asrr_1;
- int excp, idx;
+ target_ulong msr, vector;
+ int srr0, srr1, asrr0, asrr1;
- excp = env->exception_index;
- msr = do_load_msr(env);
- /* The default is to use SRR0 & SRR1 to save the exception context */
- srr_0 = &env->spr[SPR_SRR0];
- srr_1 = &env->spr[SPR_SRR1];
- asrr_0 = NULL;
- asrr_1 = NULL;
-#if defined (DEBUG_EXCEPTIONS)
- if ((excp == EXCP_PROGRAM || excp == EXCP_DSI) && msr_pr == 1) {
- if (loglevel != 0) {
- fprintf(logfile,
- "Raise exception at 0x" ADDRX " => 0x%08x (%02x)\n",
- env->nip, excp, env->error_code);
- cpu_dump_state(env, logfile, fprintf, 0);
- }
- }
-#endif
if (loglevel & CPU_LOG_INT) {
fprintf(logfile, "Raise exception at 0x" ADDRX " => 0x%08x (%02x)\n",
env->nip, excp, env->error_code);
}
- msr_pow = 0;
- idx = -1;
- /* Generate informations in save/restore registers */
+ msr = do_load_msr(env);
+ srr0 = SPR_SRR0;
+ srr1 = SPR_SRR1;
+ asrr0 = -1;
+ asrr1 = -1;
+ msr &= ~((target_ulong)0x783F0000);
switch (excp) {
- /* Generic PowerPC exceptions */
- case EXCP_RESET: /* 0x0100 */
- switch (PPC_EXCP(env)) {
- case PPC_FLAGS_EXCP_40x:
- srr_0 = &env->spr[SPR_40x_SRR2];
- srr_1 = &env->spr[SPR_40x_SRR3];
+ case POWERPC_EXCP_NONE:
+ /* Should never happen */
+ return;
+ case POWERPC_EXCP_CRITICAL: /* Critical input */
+ msr_ri = 0; /* XXX: check this */
+ switch (excp_model) {
+ case POWERPC_EXCP_40x:
+ srr0 = SPR_40x_SRR2;
+ srr1 = SPR_40x_SRR3;
break;
- case PPC_FLAGS_EXCP_BOOKE:
- idx = 0;
- srr_0 = &env->spr[SPR_BOOKE_CSRR0];
- srr_1 = &env->spr[SPR_BOOKE_CSRR1];
+ case POWERPC_EXCP_BOOKE:
+ srr0 = SPR_BOOKE_CSRR0;
+ srr1 = SPR_BOOKE_CSRR1;
break;
- default:
- if (msr_ip)
- excp += 0xFFC00;
- excp |= 0xFFC00000;
+ case POWERPC_EXCP_G2:
break;
+ default:
+ goto excp_invalid;
}
goto store_next;
- case EXCP_MACHINE_CHECK: /* 0x0200 */
- switch (PPC_EXCP(env)) {
- case PPC_FLAGS_EXCP_40x:
- srr_0 = &env->spr[SPR_40x_SRR2];
- srr_1 = &env->spr[SPR_40x_SRR3];
+ case POWERPC_EXCP_MCHECK: /* Machine check exception */
+ if (msr_me == 0) {
+ /* Machine check exception is not enabled */
+ /* XXX: we may just stop the processor here, to allow debugging */
+ excp = POWERPC_EXCP_RESET;
+ goto excp_reset;
+ }
+ msr_ri = 0;
+ msr_me = 0;
+#if defined(TARGET_PPC64H)
+ msr_hv = 1;
+#endif
+ /* XXX: should also have something loaded in DAR / DSISR */
+ switch (excp_model) {
+ case POWERPC_EXCP_40x:
+ srr0 = SPR_40x_SRR2;
+ srr1 = SPR_40x_SRR3;
break;
- case PPC_FLAGS_EXCP_BOOKE:
- idx = 1;
- srr_0 = &env->spr[SPR_BOOKE_MCSRR0];
- srr_1 = &env->spr[SPR_BOOKE_MCSRR1];
- asrr_0 = &env->spr[SPR_BOOKE_CSRR0];
- asrr_1 = &env->spr[SPR_BOOKE_CSRR1];
- msr_ce = 0;
+ case POWERPC_EXCP_BOOKE:
+ srr0 = SPR_BOOKE_MCSRR0;
+ srr1 = SPR_BOOKE_MCSRR1;
+ asrr0 = SPR_BOOKE_CSRR0;
+ asrr1 = SPR_BOOKE_CSRR1;
break;
default:
break;
}
- msr_me = 0;
- break;
- case EXCP_DSI: /* 0x0300 */
- /* Store exception cause */
- /* data location address has been stored
- * when the fault has been detected
- */
- idx = 2;
- msr &= ~0xFFFF0000;
+ goto store_next;
+ case POWERPC_EXCP_DSI: /* Data storage exception */
#if defined (DEBUG_EXCEPTIONS)
if (loglevel != 0) {
fprintf(logfile, "DSI exception: DSISR=0x" ADDRX" DAR=0x" ADDRX
"\n", env->spr[SPR_DSISR], env->spr[SPR_DAR]);
}
+#endif
+ msr_ri = 0;
+#if defined(TARGET_PPC64H)
+ if (lpes1 == 0)
+ msr_hv = 1;
#endif
goto store_next;
- case EXCP_ISI: /* 0x0400 */
- /* Store exception cause */
- idx = 3;
- msr &= ~0xFFFF0000;
- msr |= env->error_code;
+ case POWERPC_EXCP_ISI: /* Instruction storage exception */
#if defined (DEBUG_EXCEPTIONS)
if (loglevel != 0) {
fprintf(logfile, "ISI exception: msr=0x" ADDRX ", nip=0x" ADDRX
"\n", msr, env->nip);
}
#endif
+ msr_ri = 0;
+#if defined(TARGET_PPC64H)
+ if (lpes1 == 0)
+ msr_hv = 1;
+#endif
+ msr |= env->error_code;
goto store_next;
- case EXCP_EXTERNAL: /* 0x0500 */
- idx = 4;
+ case POWERPC_EXCP_EXTERNAL: /* External input */
+ msr_ri = 0;
+#if defined(TARGET_PPC64H)
+ if (lpes0 == 1)
+ msr_hv = 1;
+#endif
goto store_next;
- case EXCP_ALIGN: /* 0x0600 */
- if (likely(PPC_EXCP(env) != PPC_FLAGS_EXCP_601)) {
- /* Store exception cause */
- idx = 5;
- /* Get rS/rD and rA from faulting opcode */
- env->spr[SPR_DSISR] |=
- (ldl_code((env->nip - 4)) & 0x03FF0000) >> 16;
- /* data location address has been stored
- * when the fault has been detected
- */
- } else {
- /* IO error exception on PowerPC 601 */
- /* XXX: TODO */
- cpu_abort(env,
- "601 IO error exception is not implemented yet !\n");
- }
+ case POWERPC_EXCP_ALIGN: /* Alignment exception */
+ msr_ri = 0;
+#if defined(TARGET_PPC64H)
+ if (lpes1 == 0)
+ msr_hv = 1;
+#endif
+ /* XXX: this is false */
+ /* Get rS/rD and rA from faulting opcode */
+ env->spr[SPR_DSISR] |= (ldl_code((env->nip - 4)) & 0x03FF0000) >> 16;
goto store_current;
- case EXCP_PROGRAM: /* 0x0700 */
- idx = 6;
- msr &= ~0xFFFF0000;
+ case POWERPC_EXCP_PROGRAM: /* Program exception */
switch (env->error_code & ~0xF) {
- case EXCP_FP:
- if (msr_fe0 == 0 && msr_fe1 == 0) {
+ case POWERPC_EXCP_FP:
+ if ((msr_fe0 == 0 && msr_fe1 == 0) || msr_fp == 0) {
#if defined (DEBUG_EXCEPTIONS)
if (loglevel != 0) {
fprintf(logfile, "Ignore floating point exception\n");
#endif
return;
}
+ msr_ri = 0;
+#if defined(TARGET_PPC64H)
+ if (lpes1 == 0)
+ msr_hv = 1;
+#endif
msr |= 0x00100000;
/* Set FX */
env->fpscr[7] |= 0x8;
if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
env->fpscr[7] |= 0x4;
+ if (msr_fe0 != msr_fe1) {
+ msr |= 0x00010000;
+ goto store_current;
+ }
break;
- case EXCP_INVAL:
+ case POWERPC_EXCP_INVAL:
#if defined (DEBUG_EXCEPTIONS)
if (loglevel != 0) {
fprintf(logfile, "Invalid instruction at 0x" ADDRX "\n",
env->nip);
}
+#endif
+ msr_ri = 0;
+#if defined(TARGET_PPC64H)
+ if (lpes1 == 0)
+ msr_hv = 1;
#endif
msr |= 0x00080000;
break;
- case EXCP_PRIV:
+ case POWERPC_EXCP_PRIV:
+ msr_ri = 0;
+#if defined(TARGET_PPC64H)
+ if (lpes1 == 0)
+ msr_hv = 1;
+#endif
msr |= 0x00040000;
break;
- case EXCP_TRAP:
- idx = 15;
+ case POWERPC_EXCP_TRAP:
+ msr_ri = 0;
+#if defined(TARGET_PPC64H)
+ if (lpes1 == 0)
+ msr_hv = 1;
+#endif
msr |= 0x00020000;
break;
default:
/* Should never occur */
+ cpu_abort(env, "Invalid program exception %d. Aborting\n",
+ env->error_code);
break;
}
- msr |= 0x00010000;
- goto store_current;
- case EXCP_NO_FP: /* 0x0800 */
- idx = 7;
- msr &= ~0xFFFF0000;
- goto store_current;
- case EXCP_DECR:
goto store_next;
- case EXCP_SYSCALL: /* 0x0C00 */
- idx = 8;
+ case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */
+ msr_ri = 0;
+#if defined(TARGET_PPC64H)
+ if (lpes1 == 0)
+ msr_hv = 1;
+#endif
+ goto store_current;
+ case POWERPC_EXCP_SYSCALL: /* System call exception */
/* NOTE: this is a temporary hack to support graphics OSI
calls from the MOL driver */
+ /* XXX: To be removed */
if (env->gpr[3] == 0x113724fa && env->gpr[4] == 0x77810f9b &&
env->osi_call) {
if (env->osi_call(env) != 0)
if (loglevel & CPU_LOG_INT) {
dump_syscall(env);
}
+ msr_ri = 0;
+#if defined(TARGET_PPC64H)
+ if (lev == 1 || (lpes0 == 0 && lpes1 == 0))
+ msr_hv = 1;
+#endif
+ goto store_next;
+ case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */
+ msr_ri = 0;
+ goto store_current;
+ case POWERPC_EXCP_DECR: /* Decrementer exception */
+ msr_ri = 0;
+#if defined(TARGET_PPC64H)
+ if (lpes1 == 0)
+ msr_hv = 1;
+#endif
+ goto store_next;
+ case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */
+ /* FIT on 4xx */
+#if defined (DEBUG_EXCEPTIONS)
+ if (loglevel != 0)
+ fprintf(logfile, "FIT exception\n");
+#endif
+ msr_ri = 0; /* XXX: check this */
+ goto store_next;
+ case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */
+#if defined (DEBUG_EXCEPTIONS)
+ if (loglevel != 0)
+ fprintf(logfile, "WDT exception\n");
+#endif
+ switch (excp_model) {
+ case POWERPC_EXCP_BOOKE:
+ srr0 = SPR_BOOKE_CSRR0;
+ srr1 = SPR_BOOKE_CSRR1;
+ break;
+ default:
+ break;
+ }
+ msr_ri = 0; /* XXX: check this */
+ goto store_next;
+ case POWERPC_EXCP_DTLB: /* Data TLB error */
+ msr_ri = 0; /* XXX: check this */
goto store_next;
- case EXCP_TRACE: /* 0x0D00 */
+ case POWERPC_EXCP_ITLB: /* Instruction TLB error */
+ msr_ri = 0; /* XXX: check this */
goto store_next;
- case EXCP_PERF: /* 0x0F00 */
+ case POWERPC_EXCP_DEBUG: /* Debug interrupt */
+ switch (excp_model) {
+ case POWERPC_EXCP_BOOKE:
+ srr0 = SPR_BOOKE_DSRR0;
+ srr1 = SPR_BOOKE_DSRR1;
+ asrr0 = SPR_BOOKE_CSRR0;
+ asrr1 = SPR_BOOKE_CSRR1;
+ break;
+ default:
+ break;
+ }
/* XXX: TODO */
- cpu_abort(env,
- "Performance counter exception is not implemented yet !\n");
+ cpu_abort(env, "Debug exception is not implemented yet !\n");
goto store_next;
- /* 32 bits PowerPC specific exceptions */
- case EXCP_FP_ASSIST: /* 0x0E00 */
+#if defined(TARGET_PPCEMB)
+ case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavailable */
+ msr_ri = 0; /* XXX: check this */
+ goto store_current;
+ case POWERPC_EXCP_EFPDI: /* Embedded floating-point data interrupt */
/* XXX: TODO */
- cpu_abort(env, "Floating point assist exception "
+ cpu_abort(env, "Embedded floating point data exception "
"is not implemented yet !\n");
goto store_next;
- /* 64 bits PowerPC exceptions */
- case EXCP_DSEG: /* 0x0380 */
+ case POWERPC_EXCP_EFPRI: /* Embedded floating-point round interrupt */
/* XXX: TODO */
- cpu_abort(env, "Data segment exception is not implemented yet !\n");
+ cpu_abort(env, "Embedded floating point round exception "
+ "is not implemented yet !\n");
goto store_next;
- case EXCP_ISEG: /* 0x0480 */
+ case POWERPC_EXCP_EPERFM: /* Embedded performance monitor interrupt */
+ msr_ri = 0;
/* XXX: TODO */
cpu_abort(env,
- "Instruction segment exception is not implemented yet !\n");
+ "Performance counter exception is not implemented yet !\n");
goto store_next;
- case EXCP_HDECR: /* 0x0980 */
+ case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */
/* XXX: TODO */
- cpu_abort(env, "Hypervisor decrementer exception is not implemented "
- "yet !\n");
+ cpu_abort(env,
+ "Embedded doorbell interrupt is not implemented yet !\n");
goto store_next;
- /* Implementation specific exceptions */
- case 0x0A00:
- if (likely(env->spr[SPR_PVR] == CPU_PPC_G2 ||
- env->spr[SPR_PVR] == CPU_PPC_G2LE)) {
- /* Critical interrupt on G2 */
- /* XXX: TODO */
- cpu_abort(env, "G2 critical interrupt is not implemented yet !\n");
- goto store_next;
- } else {
- cpu_abort(env, "Invalid exception 0x0A00 !\n");
- }
- return;
- case 0x0F20:
- idx = 9;
- switch (PPC_EXCP(env)) {
- case PPC_FLAGS_EXCP_40x:
- /* APU unavailable on 405 */
- /* XXX: TODO */
- cpu_abort(env,
- "APU unavailable exception is not implemented yet !\n");
- goto store_next;
- case PPC_FLAGS_EXCP_74xx:
- /* Altivec unavailable */
- /* XXX: TODO */
- cpu_abort(env, "Altivec unavailable exception "
- "is not implemented yet !\n");
- goto store_next;
- default:
- cpu_abort(env, "Invalid exception 0x0F20 !\n");
+ case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */
+ switch (excp_model) {
+ case POWERPC_EXCP_BOOKE:
+ srr0 = SPR_BOOKE_CSRR0;
+ srr1 = SPR_BOOKE_CSRR1;
break;
- }
- return;
- case 0x1000:
- idx = 10;
- switch (PPC_EXCP(env)) {
- case PPC_FLAGS_EXCP_40x:
- /* PIT on 4xx */
- msr &= ~0xFFFF0000;
-#if defined (DEBUG_EXCEPTIONS)
- if (loglevel != 0)
- fprintf(logfile, "PIT exception\n");
-#endif
- goto store_next;
- case PPC_FLAGS_EXCP_602:
- case PPC_FLAGS_EXCP_603:
- /* ITLBMISS on 602/603 */
- goto store_gprs;
- case PPC_FLAGS_EXCP_7x5:
- /* ITLBMISS on 745/755 */
- goto tlb_miss;
default:
- cpu_abort(env, "Invalid exception 0x1000 !\n");
break;
}
- return;
- case 0x1010:
- idx = 11;
- switch (PPC_EXCP(env)) {
- case PPC_FLAGS_EXCP_40x:
- /* FIT on 4xx */
- msr &= ~0xFFFF0000;
-#if defined (DEBUG_EXCEPTIONS)
- if (loglevel != 0)
- fprintf(logfile, "FIT exception\n");
+ /* XXX: TODO */
+ cpu_abort(env, "Embedded doorbell critical interrupt "
+ "is not implemented yet !\n");
+ goto store_next;
+#endif /* defined(TARGET_PPCEMB) */
+ case POWERPC_EXCP_RESET: /* System reset exception */
+ msr_ri = 0;
+#if defined(TARGET_PPC64H)
+ msr_hv = 1;
#endif
- goto store_next;
- default:
- cpu_abort(env, "Invalid exception 0x1010 !\n");
- break;
- }
- return;
- case 0x1020:
- idx = 12;
- switch (PPC_EXCP(env)) {
- case PPC_FLAGS_EXCP_40x:
- /* Watchdog on 4xx */
- msr &= ~0xFFFF0000;
+ excp_reset:
+ goto store_next;
+#if defined(TARGET_PPC64)
+ case POWERPC_EXCP_DSEG: /* Data segment exception */
+ msr_ri = 0;
+#if defined(TARGET_PPC64H)
+ if (lpes1 == 0)
+ msr_hv = 1;
+#endif
+ /* XXX: TODO */
+ cpu_abort(env, "Data segment exception is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_ISEG: /* Instruction segment exception */
+ msr_ri = 0;
+#if defined(TARGET_PPC64H)
+ if (lpes1 == 0)
+ msr_hv = 1;
+#endif
+ /* XXX: TODO */
+ cpu_abort(env,
+ "Instruction segment exception is not implemented yet !\n");
+ goto store_next;
+#endif /* defined(TARGET_PPC64) */
+#if defined(TARGET_PPC64H)
+ case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */
+ srr0 = SPR_HSRR0;
+ srr1 = SPR_HSSR1;
+ msr_hv = 1;
+ goto store_next;
+#endif
+ case POWERPC_EXCP_TRACE: /* Trace exception */
+ msr_ri = 0;
+#if defined(TARGET_PPC64H)
+ if (lpes1 == 0)
+ msr_hv = 1;
+#endif
+ goto store_next;
+#if defined(TARGET_PPC64H)
+ case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */
+ srr0 = SPR_HSRR0;
+ srr1 = SPR_HSSR1;
+ msr_hv = 1;
+ goto store_next;
+ case POWERPC_EXCP_HISI: /* Hypervisor instruction storage exception */
+ srr0 = SPR_HSRR0;
+ srr1 = SPR_HSSR1;
+ msr_hv = 1;
+ /* XXX: TODO */
+ cpu_abort(env, "Hypervisor instruction storage exception "
+ "is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */
+ srr0 = SPR_HSRR0;
+ srr1 = SPR_HSSR1;
+ msr_hv = 1;
+ goto store_next;
+ case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment exception */
+ srr0 = SPR_HSRR0;
+ srr1 = SPR_HSSR1;
+ msr_hv = 1;
+ goto store_next;
+#endif /* defined(TARGET_PPC64H) */
+ case POWERPC_EXCP_VPU: /* Vector unavailable exception */
+ msr_ri = 0;
+#if defined(TARGET_PPC64H)
+ if (lpes1 == 0)
+ msr_hv = 1;
+#endif
+ goto store_current;
+ case POWERPC_EXCP_PIT: /* Programmable interval timer interrupt */
#if defined (DEBUG_EXCEPTIONS)
- if (loglevel != 0)
- fprintf(logfile, "WDT exception\n");
+ if (loglevel != 0)
+ fprintf(logfile, "PIT exception\n");
#endif
- goto store_next;
- case PPC_FLAGS_EXCP_BOOKE:
- srr_0 = &env->spr[SPR_BOOKE_CSRR0];
- srr_1 = &env->spr[SPR_BOOKE_CSRR1];
- break;
+ msr_ri = 0; /* XXX: check this */
+ goto store_next;
+ case POWERPC_EXCP_IO: /* IO error exception */
+ /* XXX: TODO */
+ cpu_abort(env, "601 IO error exception is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_RUNM: /* Run mode exception */
+ /* XXX: TODO */
+ cpu_abort(env, "601 run mode exception is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_EMUL: /* Emulation trap exception */
+ /* XXX: TODO */
+ cpu_abort(env, "602 emulation trap exception "
+ "is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */
+ msr_ri = 0; /* XXX: check this */
+#if defined(TARGET_PPC64H) /* XXX: check this */
+ if (lpes1 == 0)
+ msr_hv = 1;
+#endif
+ switch (excp_model) {
+ case POWERPC_EXCP_602:
+ case POWERPC_EXCP_603:
+ case POWERPC_EXCP_603E:
+ case POWERPC_EXCP_G2:
+ goto tlb_miss_tgpr;
+ case POWERPC_EXCP_7x5:
+ goto tlb_miss;
default:
- cpu_abort(env, "Invalid exception 0x1020 !\n");
+ cpu_abort(env, "Invalid instruction TLB miss exception\n");
break;
}
- return;
- case 0x1100:
- idx = 13;
- switch (PPC_EXCP(env)) {
- case PPC_FLAGS_EXCP_40x:
- /* DTLBMISS on 4xx */
- msr &= ~0xFFFF0000;
- goto store_next;
- case PPC_FLAGS_EXCP_602:
- case PPC_FLAGS_EXCP_603:
- /* DLTLBMISS on 602/603 */
- goto store_gprs;
- case PPC_FLAGS_EXCP_7x5:
- /* DLTLBMISS on 745/755 */
+ break;
+ case POWERPC_EXCP_DLTLB: /* Data load TLB miss */
+ msr_ri = 0; /* XXX: check this */
+#if defined(TARGET_PPC64H) /* XXX: check this */
+ if (lpes1 == 0)
+ msr_hv = 1;
+#endif
+ switch (excp_model) {
+ case POWERPC_EXCP_602:
+ case POWERPC_EXCP_603:
+ case POWERPC_EXCP_603E:
+ case POWERPC_EXCP_G2:
+ goto tlb_miss_tgpr;
+ case POWERPC_EXCP_7x5:
goto tlb_miss;
default:
- cpu_abort(env, "Invalid exception 0x1100 !\n");
+ cpu_abort(env, "Invalid data load TLB miss exception\n");
break;
}
- return;
- case 0x1200:
- idx = 14;
- switch (PPC_EXCP(env)) {
- case PPC_FLAGS_EXCP_40x:
- /* ITLBMISS on 4xx */
- msr &= ~0xFFFF0000;
- goto store_next;
- case PPC_FLAGS_EXCP_602:
- case PPC_FLAGS_EXCP_603:
- /* DSTLBMISS on 602/603 */
- store_gprs:
+ break;
+ case POWERPC_EXCP_DSTLB: /* Data store TLB miss */
+ msr_ri = 0; /* XXX: check this */
+#if defined(TARGET_PPC64H) /* XXX: check this */
+ if (lpes1 == 0)
+ msr_hv = 1;
+#endif
+ switch (excp_model) {
+ case POWERPC_EXCP_602:
+ case POWERPC_EXCP_603:
+ case POWERPC_EXCP_603E:
+ case POWERPC_EXCP_G2:
+ tlb_miss_tgpr:
/* Swap temporary saved registers with GPRs */
swap_gpr_tgpr(env);
msr_tgpr = 1;
+ goto tlb_miss;
+ case POWERPC_EXCP_7x5:
+ tlb_miss:
#if defined (DEBUG_SOFTWARE_TLB)
if (loglevel != 0) {
const unsigned char *es;
env->error_code);
}
#endif
- goto tlb_miss;
- case PPC_FLAGS_EXCP_7x5:
- /* DSTLBMISS on 745/755 */
- tlb_miss:
- msr &= ~0xF83F0000;
msr |= env->crf[0] << 28;
msr |= env->error_code; /* key, D/I, S/L bits */
/* Set way using a LRU mechanism */
msr |= ((env->last_way + 1) & (env->nb_ways - 1)) << 17;
- goto store_next;
- default:
- cpu_abort(env, "Invalid exception 0x1200 !\n");
- break;
- }
- return;
- case 0x1300:
- switch (PPC_EXCP(env)) {
- case PPC_FLAGS_EXCP_601:
- case PPC_FLAGS_EXCP_602:
- case PPC_FLAGS_EXCP_603:
- case PPC_FLAGS_EXCP_604:
- case PPC_FLAGS_EXCP_7x0:
- case PPC_FLAGS_EXCP_7x5:
- /* IABR on 6xx/7xx */
- /* XXX: TODO */
- cpu_abort(env, "IABR exception is not implemented yet !\n");
- goto store_next;
- default:
- cpu_abort(env, "Invalid exception 0x1300 !\n");
- break;
- }
- return;
- case 0x1400:
- switch (PPC_EXCP(env)) {
- case PPC_FLAGS_EXCP_601:
- case PPC_FLAGS_EXCP_602:
- case PPC_FLAGS_EXCP_603:
- case PPC_FLAGS_EXCP_604:
- case PPC_FLAGS_EXCP_7x0:
- case PPC_FLAGS_EXCP_7x5:
- /* SMI on 6xx/7xx */
- /* XXX: TODO */
- cpu_abort(env, "SMI exception is not implemented yet !\n");
- goto store_next;
- default:
- cpu_abort(env, "Invalid exception 0x1400 !\n");
break;
- }
- return;
- case 0x1500:
- switch (PPC_EXCP(env)) {
- case PPC_FLAGS_EXCP_602:
- /* Watchdog on 602 */
- /* XXX: TODO */
- cpu_abort(env,
- "602 watchdog exception is not implemented yet !\n");
- goto store_next;
- case PPC_FLAGS_EXCP_970:
- /* Soft patch exception on 970 */
- /* XXX: TODO */
- cpu_abort(env,
- "970 soft-patch exception is not implemented yet !\n");
- goto store_next;
- case PPC_FLAGS_EXCP_74xx:
- /* VPU assist on 74xx */
- /* XXX: TODO */
- cpu_abort(env, "VPU assist exception is not implemented yet !\n");
- goto store_next;
default:
- cpu_abort(env, "Invalid exception 0x1500 !\n");
+ cpu_abort(env, "Invalid data store TLB miss exception\n");
break;
}
- return;
- case 0x1600:
- switch (PPC_EXCP(env)) {
- case PPC_FLAGS_EXCP_602:
- /* Emulation trap on 602 */
- /* XXX: TODO */
- cpu_abort(env, "602 emulation trap exception "
- "is not implemented yet !\n");
- goto store_next;
- case PPC_FLAGS_EXCP_970:
- /* Maintenance exception on 970 */
- /* XXX: TODO */
- cpu_abort(env,
- "970 maintenance exception is not implemented yet !\n");
- goto store_next;
- default:
- cpu_abort(env, "Invalid exception 0x1600 !\n");
- break;
- }
- return;
- case 0x1700:
- switch (PPC_EXCP(env)) {
- case PPC_FLAGS_EXCP_7x0:
- case PPC_FLAGS_EXCP_7x5:
- /* Thermal management interrupt on G3 */
- /* XXX: TODO */
- cpu_abort(env, "G3 thermal management exception "
- "is not implemented yet !\n");
- goto store_next;
- case PPC_FLAGS_EXCP_970:
- /* VPU assist on 970 */
- /* XXX: TODO */
- cpu_abort(env,
- "970 VPU assist exception is not implemented yet !\n");
- goto store_next;
- default:
- cpu_abort(env, "Invalid exception 0x1700 !\n");
- break;
- }
- return;
- case 0x1800:
- switch (PPC_EXCP(env)) {
- case PPC_FLAGS_EXCP_970:
- /* Thermal exception on 970 */
- /* XXX: TODO */
- cpu_abort(env, "970 thermal management exception "
- "is not implemented yet !\n");
- goto store_next;
- default:
- cpu_abort(env, "Invalid exception 0x1800 !\n");
- break;
- }
- return;
- case 0x2000:
- switch (PPC_EXCP(env)) {
- case PPC_FLAGS_EXCP_40x:
- /* DEBUG on 4xx */
- /* XXX: TODO */
- cpu_abort(env, "40x debug exception is not implemented yet !\n");
- goto store_next;
- case PPC_FLAGS_EXCP_601:
- /* Run mode exception on 601 */
- /* XXX: TODO */
- cpu_abort(env,
- "601 run mode exception is not implemented yet !\n");
- goto store_next;
- case PPC_FLAGS_EXCP_BOOKE:
- srr_0 = &env->spr[SPR_BOOKE_CSRR0];
- srr_1 = &env->spr[SPR_BOOKE_CSRR1];
- break;
- default:
- cpu_abort(env, "Invalid exception 0x1800 !\n");
- break;
- }
- return;
- /* Other exceptions */
- /* Qemu internal exceptions:
- * we should never come here with those values: abort execution
- */
+ goto store_next;
+ case POWERPC_EXCP_FPA: /* Floating-point assist exception */
+ /* XXX: TODO */
+ cpu_abort(env, "Floating point assist exception "
+ "is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_IABR: /* Instruction address breakpoint */
+ /* XXX: TODO */
+ cpu_abort(env, "IABR exception is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_SMI: /* System management interrupt */
+ /* XXX: TODO */
+ cpu_abort(env, "SMI exception is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_THERM: /* Thermal interrupt */
+ /* XXX: TODO */
+ cpu_abort(env, "Thermal management exception "
+ "is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_PERFM: /* Embedded performance monitor interrupt */
+ msr_ri = 0;
+#if defined(TARGET_PPC64H)
+ if (lpes1 == 0)
+ msr_hv = 1;
+#endif
+ /* XXX: TODO */
+ cpu_abort(env,
+ "Performance counter exception is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_VPUA: /* Vector assist exception */
+ /* XXX: TODO */
+ cpu_abort(env, "VPU assist exception is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_SOFTP: /* Soft patch exception */
+ /* XXX: TODO */
+ cpu_abort(env,
+ "970 soft-patch exception is not implemented yet !\n");
+ goto store_next;
+ case POWERPC_EXCP_MAINT: /* Maintenance exception */
+ /* XXX: TODO */
+ cpu_abort(env,
+ "970 maintenance exception is not implemented yet !\n");
+ goto store_next;
default:
- cpu_abort(env, "Invalid exception: code %d (%04x)\n", excp, excp);
- return;
+ excp_invalid:
+ cpu_abort(env, "Invalid PowerPC exception %d. Aborting\n", excp);
+ break;
store_current:
/* save current instruction location */
- *srr_0 = env->nip - 4;
+ env->spr[srr0] = env->nip - 4;
break;
store_next:
/* save next instruction location */
- *srr_0 = env->nip;
+ env->spr[srr0] = env->nip;
break;
}
- /* Save msr */
- *srr_1 = msr;
- if (asrr_0 != NULL)
- *asrr_0 = *srr_0;
- if (asrr_1 != NULL)
- *asrr_1 = *srr_1;
+ /* Save MSR */
+ env->spr[srr1] = msr;
+ /* If any alternate SRR register are defined, duplicate saved values */
+ if (asrr0 != -1)
+ env->spr[asrr0] = env->spr[srr0];
+ if (asrr1 != -1)
+ env->spr[asrr1] = env->spr[srr1];
/* If we disactivated any translation, flush TLBs */
- if (msr_ir || msr_dr) {
+ if (msr_ir || msr_dr)
tlb_flush(env, 1);
- }
/* reload MSR with correct bits */
msr_ee = 0;
msr_pr = 0;
msr_fe1 = 0;
msr_ir = 0;
msr_dr = 0;
- msr_ri = 0;
+#if 0 /* Fix this: not on all targets */
+ msr_pmm = 0;
+#endif
msr_le = msr_ile;
- if (PPC_EXCP(env) == PPC_FLAGS_EXCP_BOOKE) {
- msr_cm = msr_icm;
- if (idx == -1 || (idx >= 16 && idx < 32)) {
- cpu_abort(env, "Invalid exception index for excp %d %08x idx %d\n",
- excp, excp, idx);
- }
+ do_compute_hflags(env);
+ /* Jump to handler */
+ vector = env->excp_vectors[excp];
+ if (vector == (target_ulong)-1) {
+ cpu_abort(env, "Raised an exception without defined vector %d\n",
+ excp);
+ }
+ vector |= env->excp_prefix;
#if defined(TARGET_PPC64)
- if (msr_cm)
- env->nip = (uint64_t)env->spr[SPR_BOOKE_IVPR];
- else
-#endif
- env->nip = (uint32_t)env->spr[SPR_BOOKE_IVPR];
- if (idx < 16)
- env->nip |= env->spr[SPR_BOOKE_IVOR0 + idx];
- else if (idx < 38)
- env->nip |= env->spr[SPR_BOOKE_IVOR32 + idx - 32];
+ if (excp_model == POWERPC_EXCP_BOOKE) {
+ msr_cm = msr_icm;
+ if (!msr_cm)
+ vector = (uint32_t)vector;
} else {
msr_sf = msr_isf;
- env->nip = excp;
+ if (!msr_sf)
+ vector = (uint32_t)vector;
}
- do_compute_hflags(env);
- /* Jump to handler */
- env->exception_index = EXCP_NONE;
+#endif
+ env->nip = vector;
+ /* Reset exception state */
+ env->exception_index = POWERPC_EXCP_NONE;
+ env->error_code = 0;
}
-void ppc_hw_interrupt (CPUPPCState *env)
+void do_interrupt (CPUState *env)
{
- int raised = 0;
+ powerpc_excp(env, env->excp_model, env->exception_index);
+}
+void ppc_hw_interrupt (CPUPPCState *env)
+{
#if 1
if (loglevel & CPU_LOG_INT) {
fprintf(logfile, "%s: %p pending %08x req %08x me %d ee %d\n",
env->interrupt_request, msr_me, msr_ee);
}
#endif
- /* Raise it */
+ /* External reset */
if (env->pending_interrupts & (1 << PPC_INTERRUPT_RESET)) {
- /* External reset / critical input */
- /* XXX: critical input should be handled another way.
- * This code is not correct !
- */
- env->exception_index = EXCP_RESET;
env->pending_interrupts &= ~(1 << PPC_INTERRUPT_RESET);
- raised = 1;
- }
- if (raised == 0 && msr_me != 0) {
- /* Machine check exception */
- if (env->pending_interrupts & (1 << PPC_INTERRUPT_MCK)) {
- env->exception_index = EXCP_MACHINE_CHECK;
- env->pending_interrupts &= ~(1 << PPC_INTERRUPT_MCK);
- raised = 1;
- }
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_RESET);
+ return;
+ }
+ /* Machine check exception */
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_MCK)) {
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_MCK);
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_MCHECK);
+ return;
}
- if (raised == 0 && msr_ee != 0) {
-#if defined(TARGET_PPC64H) /* PowerPC 64 with hypervisor mode support */
+#if 0 /* TODO */
+ /* External debug exception */
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_DEBUG)) {
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_DEBUG);
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_DEBUG);
+ return;
+ }
+#endif
+#if defined(TARGET_PPC64H)
+ if ((msr_ee != 0 || msr_hv == 0 || msr_pr == 1) & hdice != 0) {
/* Hypervisor decrementer exception */
if (env->pending_interrupts & (1 << PPC_INTERRUPT_HDECR)) {
- env->exception_index = EXCP_HDECR;
env->pending_interrupts &= ~(1 << PPC_INTERRUPT_HDECR);
- raised = 1;
- } else
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_HDECR);
+ return;
+ }
+ }
+#endif
+ if (msr_ce != 0) {
+ /* External critical interrupt */
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_CEXT)) {
+ /* Taking a critical external interrupt does not clear the external
+ * critical interrupt status
+ */
+#if 0
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_CEXT);
+#endif
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_CRITICAL);
+ return;
+ }
+ }
+ if (msr_ee != 0) {
+ /* Watchdog timer on embedded PowerPC */
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_WDT)) {
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_WDT);
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_WDT);
+ return;
+ }
+#if defined(TARGET_PPCEMB)
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_CDOORBELL)) {
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_CDOORBELL);
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_DOORCI);
+ return;
+ }
#endif
+#if defined(TARGET_PPCEMB)
+ /* External interrupt */
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_EXT)) {
+ /* Taking an external interrupt does not clear the external
+ * interrupt status
+ */
+#if 0
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_EXT);
+#endif
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_EXTERNAL);
+ return;
+ }
+#endif
+ /* Fixed interval timer on embedded PowerPC */
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_FIT)) {
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_FIT);
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_FIT);
+ return;
+ }
+ /* Programmable interval timer on embedded PowerPC */
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_PIT)) {
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_PIT);
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_PIT);
+ return;
+ }
/* Decrementer exception */
if (env->pending_interrupts & (1 << PPC_INTERRUPT_DECR)) {
- env->exception_index = EXCP_DECR;
env->pending_interrupts &= ~(1 << PPC_INTERRUPT_DECR);
- raised = 1;
- /* Programmable interval timer on embedded PowerPC */
- } else if (env->pending_interrupts & (1 << PPC_INTERRUPT_PIT)) {
- env->exception_index = EXCP_40x_PIT;
- env->pending_interrupts &= ~(1 << PPC_INTERRUPT_PIT);
- raised = 1;
- /* Fixed interval timer on embedded PowerPC */
- } else if (env->pending_interrupts & (1 << PPC_INTERRUPT_FIT)) {
- env->exception_index = EXCP_40x_FIT;
- env->pending_interrupts &= ~(1 << PPC_INTERRUPT_FIT);
- raised = 1;
- /* Watchdog timer on embedded PowerPC */
- } else if (env->pending_interrupts & (1 << PPC_INTERRUPT_WDT)) {
- env->exception_index = EXCP_40x_WATCHDOG;
- env->pending_interrupts &= ~(1 << PPC_INTERRUPT_WDT);
- raised = 1;
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_DECR);
+ return;
+ }
+#if !defined(TARGET_PPCEMB)
/* External interrupt */
- } else if (env->pending_interrupts & (1 << PPC_INTERRUPT_EXT)) {
- env->exception_index = EXCP_EXTERNAL;
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_EXT)) {
/* Taking an external interrupt does not clear the external
* interrupt status
*/
#if 0
env->pending_interrupts &= ~(1 << PPC_INTERRUPT_EXT);
#endif
- raised = 1;
-#if 0 // TODO
- /* Thermal interrupt */
- } else if (env->pending_interrupts & (1 << PPC_INTERRUPT_THERM)) {
- env->exception_index = EXCP_970_THRM;
- env->pending_interrupts &= ~(1 << PPC_INTERRUPT_THERM);
- raised = 1;
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_EXTERNAL);
+ return;
+ }
#endif
+#if defined(TARGET_PPCEMB)
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_DOORBELL)) {
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_DOORBELL);
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_DOORI);
+ return;
}
-#if 0 // TODO
- /* External debug exception */
- } else if (env->pending_interrupts & (1 << PPC_INTERRUPT_DEBUG)) {
- env->exception_index = EXCP_xxx;
- env->pending_interrupts &= ~(1 << PPC_INTERRUPT_DEBUG);
- raised = 1;
#endif
- }
- if (raised != 0) {
- env->error_code = 0;
- do_interrupt(env);
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_PERFM)) {
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_PERFM);
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_PERFM);
+ return;
+ }
+ /* Thermal interrupt */
+ if (env->pending_interrupts & (1 << PPC_INTERRUPT_THERM)) {
+ env->pending_interrupts &= ~(1 << PPC_INTERRUPT_THERM);
+ powerpc_excp(env, env->excp_model, POWERPC_EXCP_THERM);
+ return;
+ }
}
}
#endif /* !CONFIG_USER_ONLY */
void cpu_ppc_reset (void *opaque)
{
CPUPPCState *env;
+ int i;
env = opaque;
+ /* XXX: some of those flags initialisation values could depend
+ * on the actual PowerPC implementation
+ */
+ for (i = 0; i < 63; i++)
+ env->msr[i] = 0;
+#if defined(TARGET_PPC64)
+ msr_hv = 0; /* Should be 1... */
+#endif
+ msr_ap = 0; /* TO BE CHECKED */
+ msr_sa = 0; /* TO BE CHECKED */
+ msr_ip = 0; /* TO BE CHECKED */
#if defined (DO_SINGLE_STEP) && 0
/* Single step trace mode */
msr_se = 1;
msr_be = 1;
-#endif
- msr_fp = 1; /* Allow floating point exceptions */
- msr_me = 1; /* Allow machine check exceptions */
-#if defined(TARGET_PPC64)
- msr_sf = 0; /* Boot in 32 bits mode */
- msr_cm = 0;
#endif
#if defined(CONFIG_USER_ONLY)
+ msr_fp = 1; /* Allow floating point exceptions */
msr_pr = 1;
- tlb_flush(env, 1);
#else
env->nip = 0xFFFFFFFC;
ppc_tlb_invalidate_all(env);
#endif
do_compute_hflags(env);
env->reserve = -1;
+ /* Be sure no exception or interrupt is pending */
+ env->pending_interrupts = 0;
+ env->exception_index = POWERPC_EXCP_NONE;
+ env->error_code = 0;
+ /* Flush all TLBs */
+ tlb_flush(env, 1);
}
CPUPPCState *cpu_ppc_init (void)
projects / qemu.git / blobdiff