/* * Helpers for loads and stores * * Copyright (c) 2003-2005 Fabrice Bellard * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, see . */ #include "qemu/osdep.h" #include "qemu/log.h" #include "cpu.h" #include "tcg/tcg.h" #include "exec/helper-proto.h" #include "exec/exec-all.h" #include "exec/page-protection.h" #include "exec/cpu_ldst.h" #include "asi.h" //#define DEBUG_MMU //#define DEBUG_MXCC //#define DEBUG_UNASSIGNED //#define DEBUG_ASI //#define DEBUG_CACHE_CONTROL #ifdef DEBUG_MMU #define DPRINTF_MMU(fmt, ...) \ do { printf("MMU: " fmt , ## __VA_ARGS__); } while (0) #else #define DPRINTF_MMU(fmt, ...) do {} while (0) #endif #ifdef DEBUG_MXCC #define DPRINTF_MXCC(fmt, ...) \ do { printf("MXCC: " fmt , ## __VA_ARGS__); } while (0) #else #define DPRINTF_MXCC(fmt, ...) do {} while (0) #endif #ifdef DEBUG_ASI #define DPRINTF_ASI(fmt, ...) \ do { printf("ASI: " fmt , ## __VA_ARGS__); } while (0) #endif #ifdef DEBUG_CACHE_CONTROL #define DPRINTF_CACHE_CONTROL(fmt, ...) \ do { printf("CACHE_CONTROL: " fmt , ## __VA_ARGS__); } while (0) #else #define DPRINTF_CACHE_CONTROL(fmt, ...) do {} while (0) #endif #ifdef TARGET_SPARC64 #ifndef TARGET_ABI32 #define AM_CHECK(env1) ((env1)->pstate & PS_AM) #else #define AM_CHECK(env1) (1) #endif #endif #if defined(TARGET_SPARC64) && !defined(CONFIG_USER_ONLY) /* Calculates TSB pointer value for fault page size * UltraSPARC IIi has fixed sizes (8k or 64k) for the page pointers * UA2005 holds the page size configuration in mmu_ctx registers */ static uint64_t ultrasparc_tsb_pointer(CPUSPARCState *env, const SparcV9MMU *mmu, const int idx) { uint64_t tsb_register; int page_size; if (cpu_has_hypervisor(env)) { int tsb_index = 0; int ctx = mmu->tag_access & 0x1fffULL; uint64_t ctx_register = mmu->sun4v_ctx_config[ctx ? 1 : 0]; tsb_index = idx; tsb_index |= ctx ? 2 : 0; page_size = idx ? ctx_register >> 8 : ctx_register; page_size &= 7; tsb_register = mmu->sun4v_tsb_pointers[tsb_index]; } else { page_size = idx; tsb_register = mmu->tsb; } int tsb_split = (tsb_register & 0x1000ULL) ? 1 : 0; int tsb_size = tsb_register & 0xf; uint64_t tsb_base_mask = (~0x1fffULL) << tsb_size; /* move va bits to correct position, * the context bits will be masked out later */ uint64_t va = mmu->tag_access >> (3 * page_size + 9); /* calculate tsb_base mask and adjust va if split is in use */ if (tsb_split) { if (idx == 0) { va &= ~(1ULL << (13 + tsb_size)); } else { va |= (1ULL << (13 + tsb_size)); } tsb_base_mask <<= 1; } return ((tsb_register & tsb_base_mask) | (va & ~tsb_base_mask)) & ~0xfULL; } /* Calculates tag target register value by reordering bits in tag access register */ static uint64_t ultrasparc_tag_target(uint64_t tag_access_register) { return ((tag_access_register & 0x1fff) << 48) | (tag_access_register >> 22); } static void replace_tlb_entry(SparcTLBEntry *tlb, uint64_t tlb_tag, uint64_t tlb_tte, CPUSPARCState *env) { target_ulong mask, size, va, offset; /* flush page range if translation is valid */ if (TTE_IS_VALID(tlb->tte)) { CPUState *cs = env_cpu(env); size = 8192ULL << 3 * TTE_PGSIZE(tlb->tte); mask = 1ULL + ~size; va = tlb->tag & mask; for (offset = 0; offset < size; offset += TARGET_PAGE_SIZE) { tlb_flush_page(cs, va + offset); } } tlb->tag = tlb_tag; tlb->tte = tlb_tte; } static void demap_tlb(SparcTLBEntry *tlb, target_ulong demap_addr, const char *strmmu, CPUSPARCState *env1) { unsigned int i; target_ulong mask; uint64_t context; int is_demap_context = (demap_addr >> 6) & 1; /* demap context */ switch ((demap_addr >> 4) & 3) { case 0: /* primary */ context = env1->dmmu.mmu_primary_context; break; case 1: /* secondary */ context = env1->dmmu.mmu_secondary_context; break; case 2: /* nucleus */ context = 0; break; case 3: /* reserved */ default: return; } for (i = 0; i < 64; i++) { if (TTE_IS_VALID(tlb[i].tte)) { if (is_demap_context) { /* will remove non-global entries matching context value */ if (TTE_IS_GLOBAL(tlb[i].tte) || !tlb_compare_context(&tlb[i], context)) { continue; } } else { /* demap page will remove any entry matching VA */ mask = 0xffffffffffffe000ULL; mask <<= 3 * ((tlb[i].tte >> 61) & 3); if (!compare_masked(demap_addr, tlb[i].tag, mask)) { continue; } /* entry should be global or matching context value */ if (!TTE_IS_GLOBAL(tlb[i].tte) && !tlb_compare_context(&tlb[i], context)) { continue; } } replace_tlb_entry(&tlb[i], 0, 0, env1); #ifdef DEBUG_MMU DPRINTF_MMU("%s demap invalidated entry [%02u]\n", strmmu, i); dump_mmu(env1); #endif } } } static uint64_t sun4v_tte_to_sun4u(CPUSPARCState *env, uint64_t tag, uint64_t sun4v_tte) { uint64_t sun4u_tte; if (!(cpu_has_hypervisor(env) && (tag & TLB_UST1_IS_SUN4V_BIT))) { /* is already in the sun4u format */ return sun4v_tte; } sun4u_tte = TTE_PA(sun4v_tte) | (sun4v_tte & TTE_VALID_BIT); sun4u_tte |= (sun4v_tte & 3ULL) << 61; /* TTE_PGSIZE */ sun4u_tte |= CONVERT_BIT(sun4v_tte, TTE_NFO_BIT_UA2005, TTE_NFO_BIT); sun4u_tte |= CONVERT_BIT(sun4v_tte, TTE_USED_BIT_UA2005, TTE_USED_BIT); sun4u_tte |= CONVERT_BIT(sun4v_tte, TTE_W_OK_BIT_UA2005, TTE_W_OK_BIT); sun4u_tte |= CONVERT_BIT(sun4v_tte, TTE_SIDEEFFECT_BIT_UA2005, TTE_SIDEEFFECT_BIT); sun4u_tte |= CONVERT_BIT(sun4v_tte, TTE_PRIV_BIT_UA2005, TTE_PRIV_BIT); sun4u_tte |= CONVERT_BIT(sun4v_tte, TTE_LOCKED_BIT_UA2005, TTE_LOCKED_BIT); return sun4u_tte; } static void replace_tlb_1bit_lru(SparcTLBEntry *tlb, uint64_t tlb_tag, uint64_t tlb_tte, const char *strmmu, CPUSPARCState *env1, uint64_t addr) { unsigned int i, replace_used; tlb_tte = sun4v_tte_to_sun4u(env1, addr, tlb_tte); if (cpu_has_hypervisor(env1)) { uint64_t new_vaddr = tlb_tag & ~0x1fffULL; uint64_t new_size = 8192ULL << 3 * TTE_PGSIZE(tlb_tte); uint32_t new_ctx = tlb_tag & 0x1fffU; for (i = 0; i < 64; i++) { uint32_t ctx = tlb[i].tag & 0x1fffU; /* check if new mapping overlaps an existing one */ if (new_ctx == ctx) { uint64_t vaddr = tlb[i].tag & ~0x1fffULL; uint64_t size = 8192ULL << 3 * TTE_PGSIZE(tlb[i].tte); if (new_vaddr == vaddr || (new_vaddr < vaddr + size && vaddr < new_vaddr + new_size)) { DPRINTF_MMU("auto demap entry [%d] %lx->%lx\n", i, vaddr, new_vaddr); replace_tlb_entry(&tlb[i], tlb_tag, tlb_tte, env1); return; } } } } /* Try replacing invalid entry */ for (i = 0; i < 64; i++) { if (!TTE_IS_VALID(tlb[i].tte)) { replace_tlb_entry(&tlb[i], tlb_tag, tlb_tte, env1); #ifdef DEBUG_MMU DPRINTF_MMU("%s lru replaced invalid entry [%i]\n", strmmu, i); dump_mmu(env1); #endif return; } } /* All entries are valid, try replacing unlocked entry */ for (replace_used = 0; replace_used < 2; ++replace_used) { /* Used entries are not replaced on first pass */ for (i = 0; i < 64; i++) { if (!TTE_IS_LOCKED(tlb[i].tte) && !TTE_IS_USED(tlb[i].tte)) { replace_tlb_entry(&tlb[i], tlb_tag, tlb_tte, env1); #ifdef DEBUG_MMU DPRINTF_MMU("%s lru replaced unlocked %s entry [%i]\n", strmmu, (replace_used ? "used" : "unused"), i); dump_mmu(env1); #endif return; } } /* Now reset used bit and search for unused entries again */ for (i = 0; i < 64; i++) { TTE_SET_UNUSED(tlb[i].tte); } } #ifdef DEBUG_MMU DPRINTF_MMU("%s lru replacement: no free entries available, " "replacing the last one\n", strmmu); #endif /* corner case: the last entry is replaced anyway */ replace_tlb_entry(&tlb[63], tlb_tag, tlb_tte, env1); } #endif #ifdef TARGET_SPARC64 /* returns true if access using this ASI is to have address translated by MMU otherwise access is to raw physical address */ /* TODO: check sparc32 bits */ static inline int is_translating_asi(int asi) { /* Ultrasparc IIi translating asi - note this list is defined by cpu implementation */ switch (asi) { case 0x04 ... 0x11: case 0x16 ... 0x19: case 0x1E ... 0x1F: case 0x24 ... 0x2C: case 0x70 ... 0x73: case 0x78 ... 0x79: case 0x80 ... 0xFF: return 1; default: return 0; } } static inline target_ulong address_mask(CPUSPARCState *env1, target_ulong addr) { if (AM_CHECK(env1)) { addr &= 0xffffffffULL; } return addr; } static inline target_ulong asi_address_mask(CPUSPARCState *env, int asi, target_ulong addr) { if (is_translating_asi(asi)) { addr = address_mask(env, addr); } return addr; } #ifndef CONFIG_USER_ONLY static inline void do_check_asi(CPUSPARCState *env, int asi, uintptr_t ra) { /* ASIs >= 0x80 are user mode. * ASIs >= 0x30 are hyper mode (or super if hyper is not available). * ASIs <= 0x2f are super mode. */ if (asi < 0x80 && !cpu_hypervisor_mode(env) && (!cpu_supervisor_mode(env) || (asi >= 0x30 && cpu_has_hypervisor(env)))) { cpu_raise_exception_ra(env, TT_PRIV_ACT, ra); } } #endif /* !CONFIG_USER_ONLY */ #endif #if defined(TARGET_SPARC64) || !defined(CONFIG_USER_ONLY) static void do_check_align(CPUSPARCState *env, target_ulong addr, uint32_t align, uintptr_t ra) { if (addr & align) { cpu_raise_exception_ra(env, TT_UNALIGNED, ra); } } #endif #if !defined(TARGET_SPARC64) && !defined(CONFIG_USER_ONLY) && \ defined(DEBUG_MXCC) static void dump_mxcc(CPUSPARCState *env) { printf("mxccdata: %016" PRIx64 " %016" PRIx64 " %016" PRIx64 " %016" PRIx64 "\n", env->mxccdata[0], env->mxccdata[1], env->mxccdata[2], env->mxccdata[3]); printf("mxccregs: %016" PRIx64 " %016" PRIx64 " %016" PRIx64 " %016" PRIx64 "\n" " %016" PRIx64 " %016" PRIx64 " %016" PRIx64 " %016" PRIx64 "\n", env->mxccregs[0], env->mxccregs[1], env->mxccregs[2], env->mxccregs[3], env->mxccregs[4], env->mxccregs[5], env->mxccregs[6], env->mxccregs[7]); } #endif #if (defined(TARGET_SPARC64) || !defined(CONFIG_USER_ONLY)) \ && defined(DEBUG_ASI) static void dump_asi(const char *txt, target_ulong addr, int asi, int size, uint64_t r1) { switch (size) { case 1: DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %02" PRIx64 "\n", txt, addr, asi, r1 & 0xff); break; case 2: DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %04" PRIx64 "\n", txt, addr, asi, r1 & 0xffff); break; case 4: DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %08" PRIx64 "\n", txt, addr, asi, r1 & 0xffffffff); break; case 8: DPRINTF_ASI("%s "TARGET_FMT_lx " asi 0x%02x = %016" PRIx64 "\n", txt, addr, asi, r1); break; } } #endif #ifndef CONFIG_USER_ONLY #ifndef TARGET_SPARC64 static void sparc_raise_mmu_fault(CPUState *cs, hwaddr addr, bool is_write, bool is_exec, int is_asi, unsigned size, uintptr_t retaddr) { CPUSPARCState *env = cpu_env(cs); int fault_type; #ifdef DEBUG_UNASSIGNED if (is_asi) { printf("Unassigned mem %s access of %d byte%s to " HWADDR_FMT_plx " asi 0x%02x from " TARGET_FMT_lx "\n", is_exec ? "exec" : is_write ? "write" : "read", size, size == 1 ? "" : "s", addr, is_asi, env->pc); } else { printf("Unassigned mem %s access of %d byte%s to " HWADDR_FMT_plx " from " TARGET_FMT_lx "\n", is_exec ? "exec" : is_write ? "write" : "read", size, size == 1 ? "" : "s", addr, env->pc); } #endif /* Don't overwrite translation and access faults */ fault_type = (env->mmuregs[3] & 0x1c) >> 2; if ((fault_type > 4) || (fault_type == 0)) { env->mmuregs[3] = 0; /* Fault status register */ if (is_asi) { env->mmuregs[3] |= 1 << 16; } if (env->psrs) { env->mmuregs[3] |= 1 << 5; } if (is_exec) { env->mmuregs[3] |= 1 << 6; } if (is_write) { env->mmuregs[3] |= 1 << 7; } env->mmuregs[3] |= (5 << 2) | 2; /* SuperSPARC will never place instruction fault addresses in the FAR */ if (!is_exec) { env->mmuregs[4] = addr; /* Fault address register */ } } /* overflow (same type fault was not read before another fault) */ if (fault_type == ((env->mmuregs[3] & 0x1c)) >> 2) { env->mmuregs[3] |= 1; } if ((env->mmuregs[0] & MMU_E) && !(env->mmuregs[0] & MMU_NF)) { int tt = is_exec ? TT_CODE_ACCESS : TT_DATA_ACCESS; cpu_raise_exception_ra(env, tt, retaddr); } /* * flush neverland mappings created during no-fault mode, * so the sequential MMU faults report proper fault types */ if (env->mmuregs[0] & MMU_NF) { tlb_flush(cs); } } #else static void sparc_raise_mmu_fault(CPUState *cs, hwaddr addr, bool is_write, bool is_exec, int is_asi, unsigned size, uintptr_t retaddr) { CPUSPARCState *env = cpu_env(cs); #ifdef DEBUG_UNASSIGNED printf("Unassigned mem access to " HWADDR_FMT_plx " from " TARGET_FMT_lx "\n", addr, env->pc); #endif if (is_exec) { /* XXX has_hypervisor */ if (env->lsu & (IMMU_E)) { cpu_raise_exception_ra(env, TT_CODE_ACCESS, retaddr); } else if (cpu_has_hypervisor(env) && !(env->hpstate & HS_PRIV)) { cpu_raise_exception_ra(env, TT_INSN_REAL_TRANSLATION_MISS, retaddr); } } else { if (env->lsu & (DMMU_E)) { cpu_raise_exception_ra(env, TT_DATA_ACCESS, retaddr); } else if (cpu_has_hypervisor(env) && !(env->hpstate & HS_PRIV)) { cpu_raise_exception_ra(env, TT_DATA_REAL_TRANSLATION_MISS, retaddr); } } } #endif #endif #ifndef TARGET_SPARC64 #ifndef CONFIG_USER_ONLY /* Leon3 cache control */ static void leon3_cache_control_st(CPUSPARCState *env, target_ulong addr, uint64_t val, int size) { DPRINTF_CACHE_CONTROL("st addr:%08x, val:%" PRIx64 ", size:%d\n", addr, val, size); if (size != 4) { DPRINTF_CACHE_CONTROL("32bits only\n"); return; } switch (addr) { case 0x00: /* Cache control */ /* These values must always be read as zeros */ val &= ~CACHE_CTRL_FD; val &= ~CACHE_CTRL_FI; val &= ~CACHE_CTRL_IB; val &= ~CACHE_CTRL_IP; val &= ~CACHE_CTRL_DP; env->cache_control = val; break; case 0x04: /* Instruction cache configuration */ case 0x08: /* Data cache configuration */ /* Read Only */ break; default: DPRINTF_CACHE_CONTROL("write unknown register %08x\n", addr); break; }; } static uint64_t leon3_cache_control_ld(CPUSPARCState *env, target_ulong addr, int size) { uint64_t ret = 0; if (size != 4) { DPRINTF_CACHE_CONTROL("32bits only\n"); return 0; } switch (addr) { case 0x00: /* Cache control */ ret = env->cache_control; break; /* Configuration registers are read and only always keep those predefined values */ case 0x04: /* Instruction cache configuration */ ret = 0x10220000; break; case 0x08: /* Data cache configuration */ ret = 0x18220000; break; default: DPRINTF_CACHE_CONTROL("read unknown register %08x\n", addr); break; }; DPRINTF_CACHE_CONTROL("ld addr:%08x, ret:0x%" PRIx64 ", size:%d\n", addr, ret, size); return ret; } uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong addr, int asi, uint32_t memop) { int size = 1 << (memop & MO_SIZE); int sign = memop & MO_SIGN; CPUState *cs = env_cpu(env); uint64_t ret = 0; #if defined(DEBUG_MXCC) || defined(DEBUG_ASI) uint32_t last_addr = addr; #endif do_check_align(env, addr, size - 1, GETPC()); switch (asi) { case ASI_M_MXCC: /* SuperSparc MXCC registers, or... */ /* case ASI_LEON_CACHEREGS: Leon3 cache control */ switch (addr) { case 0x00: /* Leon3 Cache Control */ case 0x08: /* Leon3 Instruction Cache config */ case 0x0C: /* Leon3 Date Cache config */ if (env->def.features & CPU_FEATURE_CACHE_CTRL) { ret = leon3_cache_control_ld(env, addr, size); } break; case 0x01c00a00: /* MXCC control register */ if (size == 8) { ret = env->mxccregs[3]; } else { qemu_log_mask(LOG_UNIMP, "%08x: unimplemented access size: %d\n", addr, size); } break; case 0x01c00a04: /* MXCC control register */ if (size == 4) { ret = env->mxccregs[3]; } else { qemu_log_mask(LOG_UNIMP, "%08x: unimplemented access size: %d\n", addr, size); } break; case 0x01c00c00: /* Module reset register */ if (size == 8) { ret = env->mxccregs[5]; /* should we do something here? */ } else { qemu_log_mask(LOG_UNIMP, "%08x: unimplemented access size: %d\n", addr, size); } break; case 0x01c00f00: /* MBus port address register */ if (size == 8) { ret = env->mxccregs[7]; } else { qemu_log_mask(LOG_UNIMP, "%08x: unimplemented access size: %d\n", addr, size); } break; default: qemu_log_mask(LOG_UNIMP, "%08x: unimplemented address, size: %d\n", addr, size); break; } DPRINTF_MXCC("asi = %d, size = %d, sign = %d, " "addr = %08x -> ret = %" PRIx64 "," "addr = %08x\n", asi, size, sign, last_addr, ret, addr); #ifdef DEBUG_MXCC dump_mxcc(env); #endif break; case ASI_M_FLUSH_PROBE: /* SuperSparc MMU probe */ case ASI_LEON_MMUFLUSH: /* LEON3 MMU probe */ { int mmulev; mmulev = (addr >> 8) & 15; if (mmulev > 4) { ret = 0; } else { ret = mmu_probe(env, addr, mmulev); } DPRINTF_MMU("mmu_probe: 0x%08x (lev %d) -> 0x%08" PRIx64 "\n", addr, mmulev, ret); } break; case ASI_M_MMUREGS: /* SuperSparc MMU regs */ case ASI_LEON_MMUREGS: /* LEON3 MMU regs */ { int reg = (addr >> 8) & 0x1f; ret = env->mmuregs[reg]; if (reg == 3) { /* Fault status cleared on read */ env->mmuregs[3] = 0; } else if (reg == 0x13) { /* Fault status read */ ret = env->mmuregs[3]; } else if (reg == 0x14) { /* Fault address read */ ret = env->mmuregs[4]; } DPRINTF_MMU("mmu_read: reg[%d] = 0x%08" PRIx64 "\n", reg, ret); } break; case ASI_M_TLBDIAG: /* Turbosparc ITLB Diagnostic */ case ASI_M_DIAGS: /* Turbosparc DTLB Diagnostic */ case ASI_M_IODIAG: /* Turbosparc IOTLB Diagnostic */ break; case ASI_M_TXTC_TAG: /* SparcStation 5 I-cache tag */ case ASI_M_TXTC_DATA: /* SparcStation 5 I-cache data */ case ASI_M_DATAC_TAG: /* SparcStation 5 D-cache tag */ case ASI_M_DATAC_DATA: /* SparcStation 5 D-cache data */ break; case 0x21 ... 0x2f: /* MMU passthrough, 0x100000000 to 0xfffffffff */ { MemTxResult result; hwaddr access_addr = (hwaddr)addr | ((hwaddr)(asi & 0xf) << 32); switch (size) { case 1: ret = address_space_ldub(cs->as, access_addr, MEMTXATTRS_UNSPECIFIED, &result); break; case 2: ret = address_space_lduw(cs->as, access_addr, MEMTXATTRS_UNSPECIFIED, &result); break; default: case 4: ret = address_space_ldl(cs->as, access_addr, MEMTXATTRS_UNSPECIFIED, &result); break; case 8: ret = address_space_ldq(cs->as, access_addr, MEMTXATTRS_UNSPECIFIED, &result); break; } if (result != MEMTX_OK) { sparc_raise_mmu_fault(cs, access_addr, false, false, false, size, GETPC()); } break; } case 0x30: /* Turbosparc secondary cache diagnostic */ case 0x31: /* Turbosparc RAM snoop */ case 0x32: /* Turbosparc page table descriptor diagnostic */ case 0x39: /* data cache diagnostic register */ ret = 0; break; case 0x38: /* SuperSPARC MMU Breakpoint Control Registers */ { int reg = (addr >> 8) & 3; switch (reg) { case 0: /* Breakpoint Value (Addr) */ ret = env->mmubpregs[reg]; break; case 1: /* Breakpoint Mask */ ret = env->mmubpregs[reg]; break; case 2: /* Breakpoint Control */ ret = env->mmubpregs[reg]; break; case 3: /* Breakpoint Status */ ret = env->mmubpregs[reg]; env->mmubpregs[reg] = 0ULL; break; } DPRINTF_MMU("read breakpoint reg[%d] 0x%016" PRIx64 "\n", reg, ret); } break; case 0x49: /* SuperSPARC MMU Counter Breakpoint Value */ ret = env->mmubpctrv; break; case 0x4a: /* SuperSPARC MMU Counter Breakpoint Control */ ret = env->mmubpctrc; break; case 0x4b: /* SuperSPARC MMU Counter Breakpoint Status */ ret = env->mmubpctrs; break; case 0x4c: /* SuperSPARC MMU Breakpoint Action */ ret = env->mmubpaction; break; default: sparc_raise_mmu_fault(cs, addr, false, false, asi, size, GETPC()); ret = 0; break; case ASI_USERDATA: /* User data access */ case ASI_KERNELDATA: /* Supervisor data access */ case ASI_USERTXT: /* User code access */ case ASI_KERNELTXT: /* Supervisor code access */ case ASI_P: /* Implicit primary context data access (v9 only?) */ case ASI_M_BYPASS: /* MMU passthrough */ case ASI_LEON_BYPASS: /* LEON MMU passthrough */ /* These are always handled inline. */ g_assert_not_reached(); } if (sign) { switch (size) { case 1: ret = (int8_t) ret; break; case 2: ret = (int16_t) ret; break; case 4: ret = (int32_t) ret; break; default: break; } } #ifdef DEBUG_ASI dump_asi("read ", last_addr, asi, size, ret); #endif return ret; } void helper_st_asi(CPUSPARCState *env, target_ulong addr, uint64_t val, int asi, uint32_t memop) { int size = 1 << (memop & MO_SIZE); CPUState *cs = env_cpu(env); do_check_align(env, addr, size - 1, GETPC()); switch (asi) { case ASI_M_MXCC: /* SuperSparc MXCC registers, or... */ /* case ASI_LEON_CACHEREGS: Leon3 cache control */ switch (addr) { case 0x00: /* Leon3 Cache Control */ case 0x08: /* Leon3 Instruction Cache config */ case 0x0C: /* Leon3 Date Cache config */ if (env->def.features & CPU_FEATURE_CACHE_CTRL) { leon3_cache_control_st(env, addr, val, size); } break; case 0x01c00000: /* MXCC stream data register 0 */ if (size == 8) { env->mxccdata[0] = val; } else { qemu_log_mask(LOG_UNIMP, "%08x: unimplemented access size: %d\n", addr, size); } break; case 0x01c00008: /* MXCC stream data register 1 */ if (size == 8) { env->mxccdata[1] = val; } else { qemu_log_mask(LOG_UNIMP, "%08x: unimplemented access size: %d\n", addr, size); } break; case 0x01c00010: /* MXCC stream data register 2 */ if (size == 8) { env->mxccdata[2] = val; } else { qemu_log_mask(LOG_UNIMP, "%08x: unimplemented access size: %d\n", addr, size); } break; case 0x01c00018: /* MXCC stream data register 3 */ if (size == 8) { env->mxccdata[3] = val; } else { qemu_log_mask(LOG_UNIMP, "%08x: unimplemented access size: %d\n", addr, size); } break; case 0x01c00100: /* MXCC stream source */ { int i; if (size == 8) { env->mxccregs[0] = val; } else { qemu_log_mask(LOG_UNIMP, "%08x: unimplemented access size: %d\n", addr, size); } for (i = 0; i < 4; i++) { MemTxResult result; hwaddr access_addr = (env->mxccregs[0] & 0xffffffffULL) + 8 * i; env->mxccdata[i] = address_space_ldq(cs->as, access_addr, MEMTXATTRS_UNSPECIFIED, &result); if (result != MEMTX_OK) { /* TODO: investigate whether this is the right behaviour */ sparc_raise_mmu_fault(cs, access_addr, false, false, false, size, GETPC()); } } break; } case 0x01c00200: /* MXCC stream destination */ { int i; if (size == 8) { env->mxccregs[1] = val; } else { qemu_log_mask(LOG_UNIMP, "%08x: unimplemented access size: %d\n", addr, size); } for (i = 0; i < 4; i++) { MemTxResult result; hwaddr access_addr = (env->mxccregs[1] & 0xffffffffULL) + 8 * i; address_space_stq(cs->as, access_addr, env->mxccdata[i], MEMTXATTRS_UNSPECIFIED, &result); if (result != MEMTX_OK) { /* TODO: investigate whether this is the right behaviour */ sparc_raise_mmu_fault(cs, access_addr, true, false, false, size, GETPC()); } } break; } case 0x01c00a00: /* MXCC control register */ if (size == 8) { env->mxccregs[3] = val; } else { qemu_log_mask(LOG_UNIMP, "%08x: unimplemented access size: %d\n", addr, size); } break; case 0x01c00a04: /* MXCC control register */ if (size == 4) { env->mxccregs[3] = (env->mxccregs[3] & 0xffffffff00000000ULL) | val; } else { qemu_log_mask(LOG_UNIMP, "%08x: unimplemented access size: %d\n", addr, size); } break; case 0x01c00e00: /* MXCC error register */ /* writing a 1 bit clears the error */ if (size == 8) { env->mxccregs[6] &= ~val; } else { qemu_log_mask(LOG_UNIMP, "%08x: unimplemented access size: %d\n", addr, size); } break; case 0x01c00f00: /* MBus port address register */ if (size == 8) { env->mxccregs[7] = val; } else { qemu_log_mask(LOG_UNIMP, "%08x: unimplemented access size: %d\n", addr, size); } break; default: qemu_log_mask(LOG_UNIMP, "%08x: unimplemented address, size: %d\n", addr, size); break; } DPRINTF_MXCC("asi = %d, size = %d, addr = %08x, val = %" PRIx64 "\n", asi, size, addr, val); #ifdef DEBUG_MXCC dump_mxcc(env); #endif break; case ASI_M_FLUSH_PROBE: /* SuperSparc MMU flush */ case ASI_LEON_MMUFLUSH: /* LEON3 MMU flush */ { int mmulev; mmulev = (addr >> 8) & 15; DPRINTF_MMU("mmu flush level %d\n", mmulev); switch (mmulev) { case 0: /* flush page */ tlb_flush_page(cs, addr & 0xfffff000); break; case 1: /* flush segment (256k) */ case 2: /* flush region (16M) */ case 3: /* flush context (4G) */ case 4: /* flush entire */ tlb_flush(cs); break; default: break; } #ifdef DEBUG_MMU dump_mmu(env); #endif } break; case ASI_M_MMUREGS: /* write MMU regs */ case ASI_LEON_MMUREGS: /* LEON3 write MMU regs */ { int reg = (addr >> 8) & 0x1f; uint32_t oldreg; oldreg = env->mmuregs[reg]; switch (reg) { case 0: /* Control Register */ env->mmuregs[reg] = (env->mmuregs[reg] & 0xff000000) | (val & 0x00ffffff); /* Mappings generated during no-fault mode are invalid in normal mode. */ if ((oldreg ^ env->mmuregs[reg]) & (MMU_NF | env->def.mmu_bm)) { tlb_flush(cs); } break; case 1: /* Context Table Pointer Register */ env->mmuregs[reg] = val & env->def.mmu_ctpr_mask; break; case 2: /* Context Register */ env->mmuregs[reg] = val & env->def.mmu_cxr_mask; if (oldreg != env->mmuregs[reg]) { /* we flush when the MMU context changes because QEMU has no MMU context support */ tlb_flush(cs); } break; case 3: /* Synchronous Fault Status Register with Clear */ case 4: /* Synchronous Fault Address Register */ break; case 0x10: /* TLB Replacement Control Register */ env->mmuregs[reg] = val & env->def.mmu_trcr_mask; break; case 0x13: /* Synchronous Fault Status Register with Read and Clear */ env->mmuregs[3] = val & env->def.mmu_sfsr_mask; break; case 0x14: /* Synchronous Fault Address Register */ env->mmuregs[4] = val; break; default: env->mmuregs[reg] = val; break; } if (oldreg != env->mmuregs[reg]) { DPRINTF_MMU("mmu change reg[%d]: 0x%08x -> 0x%08x\n", reg, oldreg, env->mmuregs[reg]); } #ifdef DEBUG_MMU dump_mmu(env); #endif } break; case ASI_M_TLBDIAG: /* Turbosparc ITLB Diagnostic */ case ASI_M_DIAGS: /* Turbosparc DTLB Diagnostic */ case ASI_M_IODIAG: /* Turbosparc IOTLB Diagnostic */ break; case ASI_M_TXTC_TAG: /* I-cache tag */ case ASI_M_TXTC_DATA: /* I-cache data */ case ASI_M_DATAC_TAG: /* D-cache tag */ case ASI_M_DATAC_DATA: /* D-cache data */ case ASI_M_FLUSH_PAGE: /* I/D-cache flush page */ case ASI_M_FLUSH_SEG: /* I/D-cache flush segment */ case ASI_M_FLUSH_REGION: /* I/D-cache flush region */ case ASI_M_FLUSH_CTX: /* I/D-cache flush context */ case ASI_M_FLUSH_USER: /* I/D-cache flush user */ break; case 0x21 ... 0x2f: /* MMU passthrough, 0x100000000 to 0xfffffffff */ { MemTxResult result; hwaddr access_addr = (hwaddr)addr | ((hwaddr)(asi & 0xf) << 32); switch (size) { case 1: address_space_stb(cs->as, access_addr, val, MEMTXATTRS_UNSPECIFIED, &result); break; case 2: address_space_stw(cs->as, access_addr, val, MEMTXATTRS_UNSPECIFIED, &result); break; case 4: default: address_space_stl(cs->as, access_addr, val, MEMTXATTRS_UNSPECIFIED, &result); break; case 8: address_space_stq(cs->as, access_addr, val, MEMTXATTRS_UNSPECIFIED, &result); break; } if (result != MEMTX_OK) { sparc_raise_mmu_fault(cs, access_addr, true, false, false, size, GETPC()); } } break; case 0x30: /* store buffer tags or Turbosparc secondary cache diagnostic */ case 0x31: /* store buffer data, Ross RT620 I-cache flush or Turbosparc snoop RAM */ case 0x32: /* store buffer control or Turbosparc page table descriptor diagnostic */ case 0x36: /* I-cache flash clear */ case 0x37: /* D-cache flash clear */ break; case 0x38: /* SuperSPARC MMU Breakpoint Control Registers*/ { int reg = (addr >> 8) & 3; switch (reg) { case 0: /* Breakpoint Value (Addr) */ env->mmubpregs[reg] = (val & 0xfffffffffULL); break; case 1: /* Breakpoint Mask */ env->mmubpregs[reg] = (val & 0xfffffffffULL); break; case 2: /* Breakpoint Control */ env->mmubpregs[reg] = (val & 0x7fULL); break; case 3: /* Breakpoint Status */ env->mmubpregs[reg] = (val & 0xfULL); break; } DPRINTF_MMU("write breakpoint reg[%d] 0x%016x\n", reg, env->mmuregs[reg]); } break; case 0x49: /* SuperSPARC MMU Counter Breakpoint Value */ env->mmubpctrv = val & 0xffffffff; break; case 0x4a: /* SuperSPARC MMU Counter Breakpoint Control */ env->mmubpctrc = val & 0x3; break; case 0x4b: /* SuperSPARC MMU Counter Breakpoint Status */ env->mmubpctrs = val & 0x3; break; case 0x4c: /* SuperSPARC MMU Breakpoint Action */ env->mmubpaction = val & 0x1fff; break; case ASI_USERTXT: /* User code access, XXX */ case ASI_KERNELTXT: /* Supervisor code access, XXX */ default: sparc_raise_mmu_fault(cs, addr, true, false, asi, size, GETPC()); break; case ASI_USERDATA: /* User data access */ case ASI_KERNELDATA: /* Supervisor data access */ case ASI_P: case ASI_M_BYPASS: /* MMU passthrough */ case ASI_LEON_BYPASS: /* LEON MMU passthrough */ case ASI_M_BCOPY: /* Block copy, sta access */ case ASI_M_BFILL: /* Block fill, stda access */ /* These are always handled inline. */ g_assert_not_reached(); } #ifdef DEBUG_ASI dump_asi("write", addr, asi, size, val); #endif } uint64_t helper_ld_code(CPUSPARCState *env, target_ulong addr, uint32_t oi) { MemOp mop = get_memop(oi); uintptr_t ra = GETPC(); uint64_t ret; switch (mop & MO_SIZE) { case MO_8: ret = cpu_ldb_code_mmu(env, addr, oi, ra); if (mop & MO_SIGN) { ret = (int8_t)ret; } break; case MO_16: ret = cpu_ldw_code_mmu(env, addr, oi, ra); if ((mop & MO_BSWAP) != MO_TE) { ret = bswap16(ret); } if (mop & MO_SIGN) { ret = (int16_t)ret; } break; case MO_32: ret = cpu_ldl_code_mmu(env, addr, oi, ra); if ((mop & MO_BSWAP) != MO_TE) { ret = bswap32(ret); } if (mop & MO_SIGN) { ret = (int32_t)ret; } break; case MO_64: ret = cpu_ldq_code_mmu(env, addr, oi, ra); if ((mop & MO_BSWAP) != MO_TE) { ret = bswap64(ret); } break; default: g_assert_not_reached(); } return ret; } #endif /* CONFIG_USER_ONLY */ #else /* TARGET_SPARC64 */ #ifdef CONFIG_USER_ONLY uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong addr, int asi, uint32_t memop) { int size = 1 << (memop & MO_SIZE); int sign = memop & MO_SIGN; uint64_t ret = 0; if (asi < 0x80) { cpu_raise_exception_ra(env, TT_PRIV_ACT, GETPC()); } do_check_align(env, addr, size - 1, GETPC()); addr = asi_address_mask(env, asi, addr); switch (asi) { case ASI_PNF: /* Primary no-fault */ case ASI_PNFL: /* Primary no-fault LE */ case ASI_SNF: /* Secondary no-fault */ case ASI_SNFL: /* Secondary no-fault LE */ if (!page_check_range(addr, size, PAGE_READ)) { ret = 0; break; } switch (size) { case 1: ret = cpu_ldub_data(env, addr); break; case 2: ret = cpu_lduw_data(env, addr); break; case 4: ret = cpu_ldl_data(env, addr); break; case 8: ret = cpu_ldq_data(env, addr); break; default: g_assert_not_reached(); } break; break; case ASI_P: /* Primary */ case ASI_PL: /* Primary LE */ case ASI_S: /* Secondary */ case ASI_SL: /* Secondary LE */ /* These are always handled inline. */ g_assert_not_reached(); default: cpu_raise_exception_ra(env, TT_DATA_ACCESS, GETPC()); } /* Convert from little endian */ switch (asi) { case ASI_PNFL: /* Primary no-fault LE */ case ASI_SNFL: /* Secondary no-fault LE */ switch (size) { case 2: ret = bswap16(ret); break; case 4: ret = bswap32(ret); break; case 8: ret = bswap64(ret); break; } } /* Convert to signed number */ if (sign) { switch (size) { case 1: ret = (int8_t) ret; break; case 2: ret = (int16_t) ret; break; case 4: ret = (int32_t) ret; break; } } #ifdef DEBUG_ASI dump_asi("read", addr, asi, size, ret); #endif return ret; } void helper_st_asi(CPUSPARCState *env, target_ulong addr, target_ulong val, int asi, uint32_t memop) { int size = 1 << (memop & MO_SIZE); #ifdef DEBUG_ASI dump_asi("write", addr, asi, size, val); #endif if (asi < 0x80) { cpu_raise_exception_ra(env, TT_PRIV_ACT, GETPC()); } do_check_align(env, addr, size - 1, GETPC()); switch (asi) { case ASI_P: /* Primary */ case ASI_PL: /* Primary LE */ case ASI_S: /* Secondary */ case ASI_SL: /* Secondary LE */ /* These are always handled inline. */ g_assert_not_reached(); case ASI_PNF: /* Primary no-fault, RO */ case ASI_SNF: /* Secondary no-fault, RO */ case ASI_PNFL: /* Primary no-fault LE, RO */ case ASI_SNFL: /* Secondary no-fault LE, RO */ default: cpu_raise_exception_ra(env, TT_DATA_ACCESS, GETPC()); } } #else /* CONFIG_USER_ONLY */ uint64_t helper_ld_asi(CPUSPARCState *env, target_ulong addr, int asi, uint32_t memop) { int size = 1 << (memop & MO_SIZE); int sign = memop & MO_SIGN; CPUState *cs = env_cpu(env); uint64_t ret = 0; #if defined(DEBUG_ASI) target_ulong last_addr = addr; #endif asi &= 0xff; do_check_asi(env, asi, GETPC()); do_check_align(env, addr, size - 1, GETPC()); addr = asi_address_mask(env, asi, addr); switch (asi) { case ASI_PNF: case ASI_PNFL: case ASI_SNF: case ASI_SNFL: { MemOpIdx oi; int idx = (env->pstate & PS_PRIV ? (asi & 1 ? MMU_KERNEL_SECONDARY_IDX : MMU_KERNEL_IDX) : (asi & 1 ? MMU_USER_SECONDARY_IDX : MMU_USER_IDX)); if (cpu_get_phys_page_nofault(env, addr, idx) == -1ULL) { #ifdef DEBUG_ASI dump_asi("read ", last_addr, asi, size, ret); #endif /* exception_index is set in get_physical_address_data. */ cpu_raise_exception_ra(env, cs->exception_index, GETPC()); } oi = make_memop_idx(memop, idx); switch (size) { case 1: ret = cpu_ldb_mmu(env, addr, oi, GETPC()); break; case 2: ret = cpu_ldw_mmu(env, addr, oi, GETPC()); break; case 4: ret = cpu_ldl_mmu(env, addr, oi, GETPC()); break; case 8: ret = cpu_ldq_mmu(env, addr, oi, GETPC()); break; default: g_assert_not_reached(); } } break; case ASI_AIUP: /* As if user primary */ case ASI_AIUS: /* As if user secondary */ case ASI_AIUPL: /* As if user primary LE */ case ASI_AIUSL: /* As if user secondary LE */ case ASI_P: /* Primary */ case ASI_S: /* Secondary */ case ASI_PL: /* Primary LE */ case ASI_SL: /* Secondary LE */ case ASI_REAL: /* Bypass */ case ASI_REAL_IO: /* Bypass, non-cacheable */ case ASI_REAL_L: /* Bypass LE */ case ASI_REAL_IO_L: /* Bypass, non-cacheable LE */ case ASI_N: /* Nucleus */ case ASI_NL: /* Nucleus Little Endian (LE) */ case ASI_NUCLEUS_QUAD_LDD: /* Nucleus quad LDD 128 bit atomic */ case ASI_NUCLEUS_QUAD_LDD_L: /* Nucleus quad LDD 128 bit atomic LE */ case ASI_TWINX_AIUP: /* As if user primary, twinx */ case ASI_TWINX_AIUS: /* As if user secondary, twinx */ case ASI_TWINX_REAL: /* Real address, twinx */ case ASI_TWINX_AIUP_L: /* As if user primary, twinx, LE */ case ASI_TWINX_AIUS_L: /* As if user secondary, twinx, LE */ case ASI_TWINX_REAL_L: /* Real address, twinx, LE */ case ASI_TWINX_N: /* Nucleus, twinx */ case ASI_TWINX_NL: /* Nucleus, twinx, LE */ /* ??? From the UA2011 document; overlaps BLK_INIT_QUAD_LDD_* */ case ASI_TWINX_P: /* Primary, twinx */ case ASI_TWINX_PL: /* Primary, twinx, LE */ case ASI_TWINX_S: /* Secondary, twinx */ case ASI_TWINX_SL: /* Secondary, twinx, LE */ case ASI_MON_P: case ASI_MON_S: case ASI_MON_AIUP: case ASI_MON_AIUS: /* These are always handled inline. */ g_assert_not_reached(); case ASI_UPA_CONFIG: /* UPA config */ /* XXX */ break; case ASI_LSU_CONTROL: /* LSU */ ret = env->lsu; break; case ASI_IMMU: /* I-MMU regs */ { int reg = (addr >> 3) & 0xf; switch (reg) { case 0: /* 0x00 I-TSB Tag Target register */ ret = ultrasparc_tag_target(env->immu.tag_access); break; case 3: /* SFSR */ ret = env->immu.sfsr; break; case 5: /* TSB access */ ret = env->immu.tsb; break; case 6: /* 0x30 I-TSB Tag Access register */ ret = env->immu.tag_access; break; default: sparc_raise_mmu_fault(cs, addr, false, false, 1, size, GETPC()); ret = 0; } break; } case ASI_IMMU_TSB_8KB_PTR: /* I-MMU 8k TSB pointer */ { /* env->immuregs[5] holds I-MMU TSB register value env->immuregs[6] holds I-MMU Tag Access register value */ ret = ultrasparc_tsb_pointer(env, &env->immu, 0); break; } case ASI_IMMU_TSB_64KB_PTR: /* I-MMU 64k TSB pointer */ { /* env->immuregs[5] holds I-MMU TSB register value env->immuregs[6] holds I-MMU Tag Access register value */ ret = ultrasparc_tsb_pointer(env, &env->immu, 1); break; } case ASI_ITLB_DATA_ACCESS: /* I-MMU data access */ { int reg = (addr >> 3) & 0x3f; ret = env->itlb[reg].tte; break; } case ASI_ITLB_TAG_READ: /* I-MMU tag read */ { int reg = (addr >> 3) & 0x3f; ret = env->itlb[reg].tag; break; } case ASI_DMMU: /* D-MMU regs */ { int reg = (addr >> 3) & 0xf; switch (reg) { case 0: /* 0x00 D-TSB Tag Target register */ ret = ultrasparc_tag_target(env->dmmu.tag_access); break; case 1: /* 0x08 Primary Context */ ret = env->dmmu.mmu_primary_context; break; case 2: /* 0x10 Secondary Context */ ret = env->dmmu.mmu_secondary_context; break; case 3: /* SFSR */ ret = env->dmmu.sfsr; break; case 4: /* 0x20 SFAR */ ret = env->dmmu.sfar; break; case 5: /* 0x28 TSB access */ ret = env->dmmu.tsb; break; case 6: /* 0x30 D-TSB Tag Access register */ ret = env->dmmu.tag_access; break; case 7: ret = env->dmmu.virtual_watchpoint; break; case 8: ret = env->dmmu.physical_watchpoint; break; default: sparc_raise_mmu_fault(cs, addr, false, false, 1, size, GETPC()); ret = 0; } break; } case ASI_DMMU_TSB_8KB_PTR: /* D-MMU 8k TSB pointer */ { /* env->dmmuregs[5] holds D-MMU TSB register value env->dmmuregs[6] holds D-MMU Tag Access register value */ ret = ultrasparc_tsb_pointer(env, &env->dmmu, 0); break; } case ASI_DMMU_TSB_64KB_PTR: /* D-MMU 64k TSB pointer */ { /* env->dmmuregs[5] holds D-MMU TSB register value env->dmmuregs[6] holds D-MMU Tag Access register value */ ret = ultrasparc_tsb_pointer(env, &env->dmmu, 1); break; } case ASI_DTLB_DATA_ACCESS: /* D-MMU data access */ { int reg = (addr >> 3) & 0x3f; ret = env->dtlb[reg].tte; break; } case ASI_DTLB_TAG_READ: /* D-MMU tag read */ { int reg = (addr >> 3) & 0x3f; ret = env->dtlb[reg].tag; break; } case ASI_INTR_DISPATCH_STAT: /* Interrupt dispatch, RO */ break; case ASI_INTR_RECEIVE: /* Interrupt data receive */ ret = env->ivec_status; break; case ASI_INTR_R: /* Incoming interrupt vector, RO */ { int reg = (addr >> 4) & 0x3; if (reg < 3) { ret = env->ivec_data[reg]; } break; } case ASI_SCRATCHPAD: /* UA2005 privileged scratchpad */ if (unlikely((addr >= 0x20) && (addr < 0x30))) { /* Hyperprivileged access only */ sparc_raise_mmu_fault(cs, addr, false, false, 1, size, GETPC()); } /* fall through */ case ASI_HYP_SCRATCHPAD: /* UA2005 hyperprivileged scratchpad */ { unsigned int i = (addr >> 3) & 0x7; ret = env->scratch[i]; break; } case ASI_MMU: /* UA2005 Context ID registers */ switch ((addr >> 3) & 0x3) { case 1: ret = env->dmmu.mmu_primary_context; break; case 2: ret = env->dmmu.mmu_secondary_context; break; default: sparc_raise_mmu_fault(cs, addr, true, false, 1, size, GETPC()); } break; case ASI_DCACHE_DATA: /* D-cache data */ case ASI_DCACHE_TAG: /* D-cache tag access */ case ASI_ESTATE_ERROR_EN: /* E-cache error enable */ case ASI_AFSR: /* E-cache asynchronous fault status */ case ASI_AFAR: /* E-cache asynchronous fault address */ case ASI_EC_TAG_DATA: /* E-cache tag data */ case ASI_IC_INSTR: /* I-cache instruction access */ case ASI_IC_TAG: /* I-cache tag access */ case ASI_IC_PRE_DECODE: /* I-cache predecode */ case ASI_IC_NEXT_FIELD: /* I-cache LRU etc. */ case ASI_EC_W: /* E-cache tag */ case ASI_EC_R: /* E-cache tag */ break; case ASI_DMMU_TSB_DIRECT_PTR: /* D-MMU data pointer */ case ASI_ITLB_DATA_IN: /* I-MMU data in, WO */ case ASI_IMMU_DEMAP: /* I-MMU demap, WO */ case ASI_DTLB_DATA_IN: /* D-MMU data in, WO */ case ASI_DMMU_DEMAP: /* D-MMU demap, WO */ case ASI_INTR_W: /* Interrupt vector, WO */ default: sparc_raise_mmu_fault(cs, addr, false, false, 1, size, GETPC()); ret = 0; break; } /* Convert to signed number */ if (sign) { switch (size) { case 1: ret = (int8_t) ret; break; case 2: ret = (int16_t) ret; break; case 4: ret = (int32_t) ret; break; default: break; } } #ifdef DEBUG_ASI dump_asi("read ", last_addr, asi, size, ret); #endif return ret; } void helper_st_asi(CPUSPARCState *env, target_ulong addr, target_ulong val, int asi, uint32_t memop) { int size = 1 << (memop & MO_SIZE); CPUState *cs = env_cpu(env); #ifdef DEBUG_ASI dump_asi("write", addr, asi, size, val); #endif asi &= 0xff; do_check_asi(env, asi, GETPC()); do_check_align(env, addr, size - 1, GETPC()); addr = asi_address_mask(env, asi, addr); switch (asi) { case ASI_AIUP: /* As if user primary */ case ASI_AIUS: /* As if user secondary */ case ASI_AIUPL: /* As if user primary LE */ case ASI_AIUSL: /* As if user secondary LE */ case ASI_P: /* Primary */ case ASI_S: /* Secondary */ case ASI_PL: /* Primary LE */ case ASI_SL: /* Secondary LE */ case ASI_REAL: /* Bypass */ case ASI_REAL_IO: /* Bypass, non-cacheable */ case ASI_REAL_L: /* Bypass LE */ case ASI_REAL_IO_L: /* Bypass, non-cacheable LE */ case ASI_N: /* Nucleus */ case ASI_NL: /* Nucleus Little Endian (LE) */ case ASI_NUCLEUS_QUAD_LDD: /* Nucleus quad LDD 128 bit atomic */ case ASI_NUCLEUS_QUAD_LDD_L: /* Nucleus quad LDD 128 bit atomic LE */ case ASI_TWINX_AIUP: /* As if user primary, twinx */ case ASI_TWINX_AIUS: /* As if user secondary, twinx */ case ASI_TWINX_REAL: /* Real address, twinx */ case ASI_TWINX_AIUP_L: /* As if user primary, twinx, LE */ case ASI_TWINX_AIUS_L: /* As if user secondary, twinx, LE */ case ASI_TWINX_REAL_L: /* Real address, twinx, LE */ case ASI_TWINX_N: /* Nucleus, twinx */ case ASI_TWINX_NL: /* Nucleus, twinx, LE */ /* ??? From the UA2011 document; overlaps BLK_INIT_QUAD_LDD_* */ case ASI_TWINX_P: /* Primary, twinx */ case ASI_TWINX_PL: /* Primary, twinx, LE */ case ASI_TWINX_S: /* Secondary, twinx */ case ASI_TWINX_SL: /* Secondary, twinx, LE */ /* These are always handled inline. */ g_assert_not_reached(); /* these ASIs have different functions on UltraSPARC-IIIi * and UA2005 CPUs. Use the explicit numbers to avoid confusion */ case 0x31: case 0x32: case 0x39: case 0x3a: if (cpu_has_hypervisor(env)) { /* UA2005 * ASI_DMMU_CTX_ZERO_TSB_BASE_PS0 * ASI_DMMU_CTX_ZERO_TSB_BASE_PS1 * ASI_DMMU_CTX_NONZERO_TSB_BASE_PS0 * ASI_DMMU_CTX_NONZERO_TSB_BASE_PS1 */ int idx = ((asi & 2) >> 1) | ((asi & 8) >> 2); env->dmmu.sun4v_tsb_pointers[idx] = val; } else { goto illegal_insn; } break; case 0x33: case 0x3b: if (cpu_has_hypervisor(env)) { /* UA2005 * ASI_DMMU_CTX_ZERO_CONFIG * ASI_DMMU_CTX_NONZERO_CONFIG */ env->dmmu.sun4v_ctx_config[(asi & 8) >> 3] = val; } else { goto illegal_insn; } break; case 0x35: case 0x36: case 0x3d: case 0x3e: if (cpu_has_hypervisor(env)) { /* UA2005 * ASI_IMMU_CTX_ZERO_TSB_BASE_PS0 * ASI_IMMU_CTX_ZERO_TSB_BASE_PS1 * ASI_IMMU_CTX_NONZERO_TSB_BASE_PS0 * ASI_IMMU_CTX_NONZERO_TSB_BASE_PS1 */ int idx = ((asi & 2) >> 1) | ((asi & 8) >> 2); env->immu.sun4v_tsb_pointers[idx] = val; } else { goto illegal_insn; } break; case 0x37: case 0x3f: if (cpu_has_hypervisor(env)) { /* UA2005 * ASI_IMMU_CTX_ZERO_CONFIG * ASI_IMMU_CTX_NONZERO_CONFIG */ env->immu.sun4v_ctx_config[(asi & 8) >> 3] = val; } else { goto illegal_insn; } break; case ASI_UPA_CONFIG: /* UPA config */ /* XXX */ return; case ASI_LSU_CONTROL: /* LSU */ env->lsu = val & (DMMU_E | IMMU_E); return; case ASI_IMMU: /* I-MMU regs */ { int reg = (addr >> 3) & 0xf; uint64_t oldreg; oldreg = env->immu.mmuregs[reg]; switch (reg) { case 0: /* RO */ return; case 1: /* Not in I-MMU */ case 2: return; case 3: /* SFSR */ if ((val & 1) == 0) { val = 0; /* Clear SFSR */ } env->immu.sfsr = val; break; case 4: /* RO */ return; case 5: /* TSB access */ DPRINTF_MMU("immu TSB write: 0x%016" PRIx64 " -> 0x%016" PRIx64 "\n", env->immu.tsb, val); env->immu.tsb = val; break; case 6: /* Tag access */ env->immu.tag_access = val; break; case 7: case 8: return; default: sparc_raise_mmu_fault(cs, addr, true, false, 1, size, GETPC()); break; } if (oldreg != env->immu.mmuregs[reg]) { DPRINTF_MMU("immu change reg[%d]: 0x%016" PRIx64 " -> 0x%016" PRIx64 "\n", reg, oldreg, env->immuregs[reg]); } #ifdef DEBUG_MMU dump_mmu(env); #endif return; } case ASI_ITLB_DATA_IN: /* I-MMU data in */ /* ignore real translation entries */ if (!(addr & TLB_UST1_IS_REAL_BIT)) { replace_tlb_1bit_lru(env->itlb, env->immu.tag_access, val, "immu", env, addr); } return; case ASI_ITLB_DATA_ACCESS: /* I-MMU data access */ { /* TODO: auto demap */ unsigned int i = (addr >> 3) & 0x3f; /* ignore real translation entries */ if (!(addr & TLB_UST1_IS_REAL_BIT)) { replace_tlb_entry(&env->itlb[i], env->immu.tag_access, sun4v_tte_to_sun4u(env, addr, val), env); } #ifdef DEBUG_MMU DPRINTF_MMU("immu data access replaced entry [%i]\n", i); dump_mmu(env); #endif return; } case ASI_IMMU_DEMAP: /* I-MMU demap */ demap_tlb(env->itlb, addr, "immu", env); return; case ASI_DMMU: /* D-MMU regs */ { int reg = (addr >> 3) & 0xf; uint64_t oldreg; oldreg = env->dmmu.mmuregs[reg]; switch (reg) { case 0: /* RO */ case 4: return; case 3: /* SFSR */ if ((val & 1) == 0) { val = 0; /* Clear SFSR, Fault address */ env->dmmu.sfar = 0; } env->dmmu.sfsr = val; break; case 1: /* Primary context */ env->dmmu.mmu_primary_context = val; /* can be optimized to only flush MMU_USER_IDX and MMU_KERNEL_IDX entries */ tlb_flush(cs); break; case 2: /* Secondary context */ env->dmmu.mmu_secondary_context = val; /* can be optimized to only flush MMU_USER_SECONDARY_IDX and MMU_KERNEL_SECONDARY_IDX entries */ tlb_flush(cs); break; case 5: /* TSB access */ DPRINTF_MMU("dmmu TSB write: 0x%016" PRIx64 " -> 0x%016" PRIx64 "\n", env->dmmu.tsb, val); env->dmmu.tsb = val; break; case 6: /* Tag access */ env->dmmu.tag_access = val; break; case 7: /* Virtual Watchpoint */ env->dmmu.virtual_watchpoint = val; break; case 8: /* Physical Watchpoint */ env->dmmu.physical_watchpoint = val; break; default: sparc_raise_mmu_fault(cs, addr, true, false, 1, size, GETPC()); break; } if (oldreg != env->dmmu.mmuregs[reg]) { DPRINTF_MMU("dmmu change reg[%d]: 0x%016" PRIx64 " -> 0x%016" PRIx64 "\n", reg, oldreg, env->dmmuregs[reg]); } #ifdef DEBUG_MMU dump_mmu(env); #endif return; } case ASI_DTLB_DATA_IN: /* D-MMU data in */ /* ignore real translation entries */ if (!(addr & TLB_UST1_IS_REAL_BIT)) { replace_tlb_1bit_lru(env->dtlb, env->dmmu.tag_access, val, "dmmu", env, addr); } return; case ASI_DTLB_DATA_ACCESS: /* D-MMU data access */ { unsigned int i = (addr >> 3) & 0x3f; /* ignore real translation entries */ if (!(addr & TLB_UST1_IS_REAL_BIT)) { replace_tlb_entry(&env->dtlb[i], env->dmmu.tag_access, sun4v_tte_to_sun4u(env, addr, val), env); } #ifdef DEBUG_MMU DPRINTF_MMU("dmmu data access replaced entry [%i]\n", i); dump_mmu(env); #endif return; } case ASI_DMMU_DEMAP: /* D-MMU demap */ demap_tlb(env->dtlb, addr, "dmmu", env); return; case ASI_INTR_RECEIVE: /* Interrupt data receive */ env->ivec_status = val & 0x20; return; case ASI_SCRATCHPAD: /* UA2005 privileged scratchpad */ if (unlikely((addr >= 0x20) && (addr < 0x30))) { /* Hyperprivileged access only */ sparc_raise_mmu_fault(cs, addr, true, false, 1, size, GETPC()); } /* fall through */ case ASI_HYP_SCRATCHPAD: /* UA2005 hyperprivileged scratchpad */ { unsigned int i = (addr >> 3) & 0x7; env->scratch[i] = val; return; } case ASI_MMU: /* UA2005 Context ID registers */ { switch ((addr >> 3) & 0x3) { case 1: env->dmmu.mmu_primary_context = val; env->immu.mmu_primary_context = val; tlb_flush_by_mmuidx(cs, (1 << MMU_USER_IDX) | (1 << MMU_KERNEL_IDX)); break; case 2: env->dmmu.mmu_secondary_context = val; env->immu.mmu_secondary_context = val; tlb_flush_by_mmuidx(cs, (1 << MMU_USER_SECONDARY_IDX) | (1 << MMU_KERNEL_SECONDARY_IDX)); break; default: sparc_raise_mmu_fault(cs, addr, true, false, 1, size, GETPC()); } } return; case ASI_QUEUE: /* UA2005 CPU mondo queue */ case ASI_DCACHE_DATA: /* D-cache data */ case ASI_DCACHE_TAG: /* D-cache tag access */ case ASI_ESTATE_ERROR_EN: /* E-cache error enable */ case ASI_AFSR: /* E-cache asynchronous fault status */ case ASI_AFAR: /* E-cache asynchronous fault address */ case ASI_EC_TAG_DATA: /* E-cache tag data */ case ASI_IC_INSTR: /* I-cache instruction access */ case ASI_IC_TAG: /* I-cache tag access */ case ASI_IC_PRE_DECODE: /* I-cache predecode */ case ASI_IC_NEXT_FIELD: /* I-cache LRU etc. */ case ASI_EC_W: /* E-cache tag */ case ASI_EC_R: /* E-cache tag */ return; case ASI_IMMU_TSB_8KB_PTR: /* I-MMU 8k TSB pointer, RO */ case ASI_IMMU_TSB_64KB_PTR: /* I-MMU 64k TSB pointer, RO */ case ASI_ITLB_TAG_READ: /* I-MMU tag read, RO */ case ASI_DMMU_TSB_8KB_PTR: /* D-MMU 8k TSB pointer, RO */ case ASI_DMMU_TSB_64KB_PTR: /* D-MMU 64k TSB pointer, RO */ case ASI_DMMU_TSB_DIRECT_PTR: /* D-MMU data pointer, RO */ case ASI_DTLB_TAG_READ: /* D-MMU tag read, RO */ case ASI_INTR_DISPATCH_STAT: /* Interrupt dispatch, RO */ case ASI_INTR_R: /* Incoming interrupt vector, RO */ case ASI_PNF: /* Primary no-fault, RO */ case ASI_SNF: /* Secondary no-fault, RO */ case ASI_PNFL: /* Primary no-fault LE, RO */ case ASI_SNFL: /* Secondary no-fault LE, RO */ default: sparc_raise_mmu_fault(cs, addr, true, false, 1, size, GETPC()); return; illegal_insn: cpu_raise_exception_ra(env, TT_ILL_INSN, GETPC()); } } #endif /* CONFIG_USER_ONLY */ #endif /* TARGET_SPARC64 */ #if !defined(CONFIG_USER_ONLY) void sparc_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr, vaddr addr, unsigned size, MMUAccessType access_type, int mmu_idx, MemTxAttrs attrs, MemTxResult response, uintptr_t retaddr) { bool is_write = access_type == MMU_DATA_STORE; bool is_exec = access_type == MMU_INST_FETCH; bool is_asi = false; sparc_raise_mmu_fault(cs, physaddr, is_write, is_exec, is_asi, size, retaddr); } #endif