X-Git-Url: https://repo.jachan.dev/qemu.git/blobdiff_plain/a64d4718f1afde08fb74910242e7a7b946c3f162..5d0fc900d35e9f272c79d199e5854be8301dccf3:/softmmu_template.h diff --git a/softmmu_template.h b/softmmu_template.h index 9bae4f6282..934df5286f 100644 --- a/softmmu_template.h +++ b/softmmu_template.h @@ -1,6 +1,6 @@ /* * Software MMU support - * + * * Copyright (c) 2003 Fabrice Bellard * * This library is free software; you can redistribute it and/or @@ -47,16 +47,17 @@ #define ADDR_READ addr_read #endif -static DATA_TYPE glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(target_ulong addr, - int is_user, +static DATA_TYPE glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(target_ulong addr, + int mmu_idx, void *retaddr); -static inline DATA_TYPE glue(io_read, SUFFIX)(target_phys_addr_t physaddr, - target_ulong tlb_addr) +static inline DATA_TYPE glue(io_read, SUFFIX)(target_phys_addr_t physaddr, + target_ulong addr) { DATA_TYPE res; int index; + index = (physaddr >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); + physaddr = (physaddr & TARGET_PAGE_MASK) + addr; - index = (tlb_addr >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); #if SHIFT <= 2 res = io_mem_read[index][SHIFT](io_mem_opaque[index], physaddr); #else @@ -68,92 +69,96 @@ static inline DATA_TYPE glue(io_read, SUFFIX)(target_phys_addr_t physaddr, res |= (uint64_t)io_mem_read[index][2](io_mem_opaque[index], physaddr + 4) << 32; #endif #endif /* SHIFT > 2 */ +#ifdef USE_KQEMU + env->last_io_time = cpu_get_time_fast(); +#endif return res; } /* handle all cases except unaligned access which span two pages */ -DATA_TYPE REGPARM(1) glue(glue(__ld, SUFFIX), MMUSUFFIX)(target_ulong addr, - int is_user) +DATA_TYPE REGPARM glue(glue(__ld, SUFFIX), MMUSUFFIX)(target_ulong addr, + int mmu_idx) { DATA_TYPE res; int index; target_ulong tlb_addr; - target_phys_addr_t physaddr; + target_phys_addr_t addend; void *retaddr; - + /* test if there is match for unaligned or IO access */ /* XXX: could done more in memory macro in a non portable way */ index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); redo: - tlb_addr = env->tlb_table[is_user][index].ADDR_READ; + tlb_addr = env->tlb_table[mmu_idx][index].ADDR_READ; if ((addr & TARGET_PAGE_MASK) == (tlb_addr & (TARGET_PAGE_MASK | TLB_INVALID_MASK))) { - physaddr = addr + env->tlb_table[is_user][index].addend; if (tlb_addr & ~TARGET_PAGE_MASK) { /* IO access */ if ((addr & (DATA_SIZE - 1)) != 0) goto do_unaligned_access; - res = glue(io_read, SUFFIX)(physaddr, tlb_addr); + addend = env->iotlb[mmu_idx][index]; + res = glue(io_read, SUFFIX)(addend, addr); } else if (((addr & ~TARGET_PAGE_MASK) + DATA_SIZE - 1) >= TARGET_PAGE_SIZE) { /* slow unaligned access (it spans two pages or IO) */ do_unaligned_access: retaddr = GETPC(); #ifdef ALIGNED_ONLY - do_unaligned_access(addr, READ_ACCESS_TYPE, is_user, retaddr); + do_unaligned_access(addr, READ_ACCESS_TYPE, mmu_idx, retaddr); #endif - res = glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(addr, - is_user, retaddr); + res = glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(addr, + mmu_idx, retaddr); } else { /* unaligned/aligned access in the same page */ #ifdef ALIGNED_ONLY if ((addr & (DATA_SIZE - 1)) != 0) { retaddr = GETPC(); - do_unaligned_access(addr, READ_ACCESS_TYPE, is_user, retaddr); + do_unaligned_access(addr, READ_ACCESS_TYPE, mmu_idx, retaddr); } #endif - res = glue(glue(ld, USUFFIX), _raw)((uint8_t *)(long)physaddr); + addend = env->tlb_table[mmu_idx][index].addend; + res = glue(glue(ld, USUFFIX), _raw)((uint8_t *)(long)(addr+addend)); } } else { /* the page is not in the TLB : fill it */ retaddr = GETPC(); #ifdef ALIGNED_ONLY if ((addr & (DATA_SIZE - 1)) != 0) - do_unaligned_access(addr, READ_ACCESS_TYPE, is_user, retaddr); + do_unaligned_access(addr, READ_ACCESS_TYPE, mmu_idx, retaddr); #endif - tlb_fill(addr, READ_ACCESS_TYPE, is_user, retaddr); + tlb_fill(addr, READ_ACCESS_TYPE, mmu_idx, retaddr); goto redo; } return res; } /* handle all unaligned cases */ -static DATA_TYPE glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(target_ulong addr, - int is_user, +static DATA_TYPE glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(target_ulong addr, + int mmu_idx, void *retaddr) { DATA_TYPE res, res1, res2; int index, shift; - target_phys_addr_t physaddr; + target_phys_addr_t addend; target_ulong tlb_addr, addr1, addr2; index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); redo: - tlb_addr = env->tlb_table[is_user][index].ADDR_READ; + tlb_addr = env->tlb_table[mmu_idx][index].ADDR_READ; if ((addr & TARGET_PAGE_MASK) == (tlb_addr & (TARGET_PAGE_MASK | TLB_INVALID_MASK))) { - physaddr = addr + env->tlb_table[is_user][index].addend; if (tlb_addr & ~TARGET_PAGE_MASK) { /* IO access */ if ((addr & (DATA_SIZE - 1)) != 0) goto do_unaligned_access; - res = glue(io_read, SUFFIX)(physaddr, tlb_addr); + addend = env->iotlb[mmu_idx][index]; + res = glue(io_read, SUFFIX)(addend, addr); } else if (((addr & ~TARGET_PAGE_MASK) + DATA_SIZE - 1) >= TARGET_PAGE_SIZE) { do_unaligned_access: /* slow unaligned access (it spans two pages) */ addr1 = addr & ~(DATA_SIZE - 1); addr2 = addr1 + DATA_SIZE; - res1 = glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(addr1, - is_user, retaddr); - res2 = glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(addr2, - is_user, retaddr); + res1 = glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(addr1, + mmu_idx, retaddr); + res2 = glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(addr2, + mmu_idx, retaddr); shift = (addr & (DATA_SIZE - 1)) * 8; #ifdef TARGET_WORDS_BIGENDIAN res = (res1 << shift) | (res2 >> ((DATA_SIZE * 8) - shift)); @@ -163,11 +168,12 @@ static DATA_TYPE glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(target_ulong addr, res = (DATA_TYPE)res; } else { /* unaligned/aligned access in the same page */ - res = glue(glue(ld, USUFFIX), _raw)((uint8_t *)(long)physaddr); + addend = env->tlb_table[mmu_idx][index].addend; + res = glue(glue(ld, USUFFIX), _raw)((uint8_t *)(long)(addr+addend)); } } else { /* the page is not in the TLB : fill it */ - tlb_fill(addr, READ_ACCESS_TYPE, is_user, retaddr); + tlb_fill(addr, READ_ACCESS_TYPE, mmu_idx, retaddr); goto redo; } return res; @@ -175,20 +181,21 @@ static DATA_TYPE glue(glue(slow_ld, SUFFIX), MMUSUFFIX)(target_ulong addr, #ifndef SOFTMMU_CODE_ACCESS -static void glue(glue(slow_st, SUFFIX), MMUSUFFIX)(target_ulong addr, - DATA_TYPE val, - int is_user, +static void glue(glue(slow_st, SUFFIX), MMUSUFFIX)(target_ulong addr, + DATA_TYPE val, + int mmu_idx, void *retaddr); -static inline void glue(io_write, SUFFIX)(target_phys_addr_t physaddr, +static inline void glue(io_write, SUFFIX)(target_phys_addr_t physaddr, DATA_TYPE val, - target_ulong tlb_addr, + target_ulong addr, void *retaddr) { int index; + index = (physaddr >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); + physaddr = (physaddr & TARGET_PAGE_MASK) + addr; - index = (tlb_addr >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); - env->mem_write_vaddr = tlb_addr; + env->mem_write_vaddr = addr; env->mem_write_pc = (unsigned long)retaddr; #if SHIFT <= 2 io_mem_write[index][SHIFT](io_mem_opaque[index], physaddr, val); @@ -201,97 +208,104 @@ static inline void glue(io_write, SUFFIX)(target_phys_addr_t physaddr, io_mem_write[index][2](io_mem_opaque[index], physaddr + 4, val >> 32); #endif #endif /* SHIFT > 2 */ +#ifdef USE_KQEMU + env->last_io_time = cpu_get_time_fast(); +#endif } -void REGPARM(2) glue(glue(__st, SUFFIX), MMUSUFFIX)(target_ulong addr, - DATA_TYPE val, - int is_user) +void REGPARM glue(glue(__st, SUFFIX), MMUSUFFIX)(target_ulong addr, + DATA_TYPE val, + int mmu_idx) { - target_phys_addr_t physaddr; + target_phys_addr_t addend; target_ulong tlb_addr; void *retaddr; int index; - + index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); redo: - tlb_addr = env->tlb_table[is_user][index].addr_write; + tlb_addr = env->tlb_table[mmu_idx][index].addr_write; if ((addr & TARGET_PAGE_MASK) == (tlb_addr & (TARGET_PAGE_MASK | TLB_INVALID_MASK))) { - physaddr = addr + env->tlb_table[is_user][index].addend; if (tlb_addr & ~TARGET_PAGE_MASK) { /* IO access */ if ((addr & (DATA_SIZE - 1)) != 0) goto do_unaligned_access; retaddr = GETPC(); - glue(io_write, SUFFIX)(physaddr, val, tlb_addr, retaddr); + addend = env->iotlb[mmu_idx][index]; + glue(io_write, SUFFIX)(addend, val, addr, retaddr); } else if (((addr & ~TARGET_PAGE_MASK) + DATA_SIZE - 1) >= TARGET_PAGE_SIZE) { do_unaligned_access: retaddr = GETPC(); #ifdef ALIGNED_ONLY - do_unaligned_access(addr, 1, is_user, retaddr); + do_unaligned_access(addr, 1, mmu_idx, retaddr); #endif - glue(glue(slow_st, SUFFIX), MMUSUFFIX)(addr, val, - is_user, retaddr); + glue(glue(slow_st, SUFFIX), MMUSUFFIX)(addr, val, + mmu_idx, retaddr); } else { /* aligned/unaligned access in the same page */ #ifdef ALIGNED_ONLY if ((addr & (DATA_SIZE - 1)) != 0) { retaddr = GETPC(); - do_unaligned_access(addr, 1, is_user, retaddr); + do_unaligned_access(addr, 1, mmu_idx, retaddr); } #endif - glue(glue(st, SUFFIX), _raw)((uint8_t *)(long)physaddr, val); + addend = env->tlb_table[mmu_idx][index].addend; + glue(glue(st, SUFFIX), _raw)((uint8_t *)(long)(addr+addend), val); } } else { /* the page is not in the TLB : fill it */ retaddr = GETPC(); #ifdef ALIGNED_ONLY if ((addr & (DATA_SIZE - 1)) != 0) - do_unaligned_access(addr, 1, is_user, retaddr); + do_unaligned_access(addr, 1, mmu_idx, retaddr); #endif - tlb_fill(addr, 1, is_user, retaddr); + tlb_fill(addr, 1, mmu_idx, retaddr); goto redo; } } /* handles all unaligned cases */ -static void glue(glue(slow_st, SUFFIX), MMUSUFFIX)(target_ulong addr, +static void glue(glue(slow_st, SUFFIX), MMUSUFFIX)(target_ulong addr, DATA_TYPE val, - int is_user, + int mmu_idx, void *retaddr) { - target_phys_addr_t physaddr; + target_phys_addr_t addend; target_ulong tlb_addr; int index, i; index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); redo: - tlb_addr = env->tlb_table[is_user][index].addr_write; + tlb_addr = env->tlb_table[mmu_idx][index].addr_write; if ((addr & TARGET_PAGE_MASK) == (tlb_addr & (TARGET_PAGE_MASK | TLB_INVALID_MASK))) { - physaddr = addr + env->tlb_table[is_user][index].addend; if (tlb_addr & ~TARGET_PAGE_MASK) { /* IO access */ if ((addr & (DATA_SIZE - 1)) != 0) goto do_unaligned_access; - glue(io_write, SUFFIX)(physaddr, val, tlb_addr, retaddr); + addend = env->iotlb[mmu_idx][index]; + glue(io_write, SUFFIX)(addend, val, addr, retaddr); } else if (((addr & ~TARGET_PAGE_MASK) + DATA_SIZE - 1) >= TARGET_PAGE_SIZE) { do_unaligned_access: /* XXX: not efficient, but simple */ - for(i = 0;i < DATA_SIZE; i++) { + /* Note: relies on the fact that tlb_fill() does not remove the + * previous page from the TLB cache. */ + for(i = DATA_SIZE - 1; i >= 0; i--) { #ifdef TARGET_WORDS_BIGENDIAN - glue(slow_stb, MMUSUFFIX)(addr + i, val >> (((DATA_SIZE - 1) * 8) - (i * 8)), - is_user, retaddr); + glue(slow_stb, MMUSUFFIX)(addr + i, val >> (((DATA_SIZE - 1) * 8) - (i * 8)), + mmu_idx, retaddr); #else - glue(slow_stb, MMUSUFFIX)(addr + i, val >> (i * 8), - is_user, retaddr); + glue(slow_stb, MMUSUFFIX)(addr + i, val >> (i * 8), + mmu_idx, retaddr); #endif } } else { /* aligned/unaligned access in the same page */ - glue(glue(st, SUFFIX), _raw)((uint8_t *)(long)physaddr, val); + addend = env->tlb_table[mmu_idx][index].addend; + glue(glue(st, SUFFIX), _raw)((uint8_t *)(long)(addr+addend), val); } } else { /* the page is not in the TLB : fill it */ - tlb_fill(addr, 1, is_user, retaddr); + tlb_fill(addr, 1, mmu_idx, retaddr); goto redo; } }