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Signed-off-by: Tony Nguyen --- accel/tcg/cputlb.c | 170 +++++++++++++++++++++++++-------------------------- include/exec/memop.h | 6 ++ memory.c | 11 +--- 3 files changed, 90 insertions(+), 97 deletions(-) -- 1.8.3.1 ? diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c index 6c83878..86d85cc 100644 --- a/accel/tcg/cputlb.c +++ b/accel/tcg/cputlb.c @@ -881,7 +881,7 @@ static void tlb_fill(CPUState *cpu, target_ulong addr, int size, static uint64_t io_readx(CPUArchState *env, CPUIOTLBEntry *iotlbentry, int mmu_idx, target_ulong addr, uintptr_t retaddr, - MMUAccessType access_type, int size) + MMUAccessType access_type, MemOp op) { CPUState *cpu = env_cpu(env); hwaddr mr_offset; @@ -906,14 +906,13 @@ static uint64_t io_readx(CPUArchState *env, CPUIOTLBEntry *iotlbentry, qemu_mutex_lock_iothread(); locked = true; } - r = memory_region_dispatch_read(mr, mr_offset, &val, size_memop(size), - iotlbentry->attrs); + r = memory_region_dispatch_read(mr, mr_offset, &val, op, iotlbentry->attrs); if (r != MEMTX_OK) { hwaddr physaddr = mr_offset + section->offset_within_address_space - section->offset_within_region; - cpu_transaction_failed(cpu, physaddr, addr, size, access_type, + cpu_transaction_failed(cpu, physaddr, addr, memop_size(op), access_type, mmu_idx, iotlbentry->attrs, r, retaddr); } if (locked) { @@ -925,7 +924,7 @@ static uint64_t io_readx(CPUArchState *env, CPUIOTLBEntry *iotlbentry, static void io_writex(CPUArchState *env, CPUIOTLBEntry *iotlbentry, int mmu_idx, uint64_t val, target_ulong addr, - uintptr_t retaddr, int size) + uintptr_t retaddr, MemOp op) { CPUState *cpu = env_cpu(env); hwaddr mr_offset; @@ -947,15 +946,15 @@ static void io_writex(CPUArchState *env, CPUIOTLBEntry *iotlbentry, qemu_mutex_lock_iothread(); locked = true; } - r = memory_region_dispatch_write(mr, mr_offset, val, size_memop(size), - iotlbentry->attrs); + r = memory_region_dispatch_write(mr, mr_offset, val, op, iotlbentry->attrs); if (r != MEMTX_OK) { hwaddr physaddr = mr_offset + section->offset_within_address_space - section->offset_within_region; - cpu_transaction_failed(cpu, physaddr, addr, size, MMU_DATA_STORE, - mmu_idx, iotlbentry->attrs, r, retaddr); + cpu_transaction_failed(cpu, physaddr, addr, memop_size(op), + MMU_DATA_STORE, mmu_idx, iotlbentry->attrs, r, + retaddr); } if (locked) { qemu_mutex_unlock_iothread(); @@ -1216,14 +1215,15 @@ static void *atomic_mmu_lookup(CPUArchState *env, target_ulong addr, * access type. */ -static inline uint64_t handle_bswap(uint64_t val, int size, bool big_endian) +static inline uint64_t handle_bswap(uint64_t val, MemOp op) { - if ((big_endian && NEED_BE_BSWAP) || (!big_endian && NEED_LE_BSWAP)) { - switch (size) { - case 1: return val; - case 2: return bswap16(val); - case 4: return bswap32(val); - case 8: return bswap64(val); + if ((memop_big_endian(op) && NEED_BE_BSWAP) || + (!memop_big_endian(op) && NEED_LE_BSWAP)) { + switch (op & MO_SIZE) { + case MO_8: return val; + case MO_16: return bswap16(val); + case MO_32: return bswap32(val); + case MO_64: return bswap64(val); default: g_assert_not_reached(); } @@ -1246,7 +1246,7 @@ typedef uint64_t FullLoadHelper(CPUArchState *env, target_ulong addr, static inline uint64_t __attribute__((always_inline)) load_helper(CPUArchState *env, target_ulong addr, TCGMemOpIdx oi, - uintptr_t retaddr, size_t size, bool big_endian, bool code_read, + uintptr_t retaddr, MemOp op, bool code_read, FullLoadHelper *full_load) { uintptr_t mmu_idx = get_mmuidx(oi); @@ -1260,6 +1260,7 @@ load_helper(CPUArchState *env, target_ulong addr, TCGMemOpIdx oi, unsigned a_bits = get_alignment_bits(get_memop(oi)); void *haddr; uint64_t res; + size_t size = memop_size(op); /* Handle CPU specific unaligned behaviour */ if (addr & ((1 << a_bits) - 1)) { @@ -1305,9 +1306,10 @@ load_helper(CPUArchState *env, target_ulong addr, TCGMemOpIdx oi, } } + /* FIXME: io_readx ignores MO_BSWAP. */ res = io_readx(env, &env_tlb(env)->d[mmu_idx].iotlb[index], - mmu_idx, addr, retaddr, access_type, size); - return handle_bswap(res, size, big_endian); + mmu_idx, addr, retaddr, access_type, op); + return handle_bswap(res, op); } /* Handle slow unaligned access (it spans two pages or IO). */ @@ -1324,7 +1326,7 @@ load_helper(CPUArchState *env, target_ulong addr, TCGMemOpIdx oi, r2 = full_load(env, addr2, oi, retaddr); shift = (addr & (size - 1)) * 8; - if (big_endian) { + if (memop_big_endian(op)) { /* Big-endian combine. */ res = (r1 << shift) | (r2 >> ((size * 8) - shift)); } else { @@ -1336,30 +1338,27 @@ load_helper(CPUArchState *env, target_ulong addr, TCGMemOpIdx oi, do_aligned_access: haddr = (void *)((uintptr_t)addr + entry->addend); - switch (size) { - case 1: + switch (op) { + case MO_8: res = ldub_p(haddr); break; - case 2: - if (big_endian) { - res = lduw_be_p(haddr); - } else { - res = lduw_le_p(haddr); - } + case MO_BEUW: + res = lduw_be_p(haddr); break; - case 4: - if (big_endian) { - res = (uint32_t)ldl_be_p(haddr); - } else { - res = (uint32_t)ldl_le_p(haddr); - } + case MO_LEUW: + res = lduw_le_p(haddr); break; - case 8: - if (big_endian) { - res = ldq_be_p(haddr); - } else { - res = ldq_le_p(haddr); - } + case MO_BEUL: + res = (uint32_t)ldl_be_p(haddr); + break; + case MO_LEUL: + res = (uint32_t)ldl_le_p(haddr); + break; + case MO_BEQ: + res = ldq_be_p(haddr); + break; + case MO_LEQ: + res = ldq_le_p(haddr); break; default: g_assert_not_reached(); @@ -1381,8 +1380,7 @@ load_helper(CPUArchState *env, target_ulong addr, TCGMemOpIdx oi, static uint64_t full_ldub_mmu(CPUArchState *env, target_ulong addr, TCGMemOpIdx oi, uintptr_t retaddr) { - return load_helper(env, addr, oi, retaddr, 1, false, false, - full_ldub_mmu); + return load_helper(env, addr, oi, retaddr, MO_8, false, full_ldub_mmu); } tcg_target_ulong helper_ret_ldub_mmu(CPUArchState *env, target_ulong addr, @@ -1394,7 +1392,7 @@ tcg_target_ulong helper_ret_ldub_mmu(CPUArchState *env, target_ulong addr, static uint64_t full_le_lduw_mmu(CPUArchState *env, target_ulong addr, TCGMemOpIdx oi, uintptr_t retaddr) { - return load_helper(env, addr, oi, retaddr, 2, false, false, + return load_helper(env, addr, oi, retaddr, MO_LEUW, false, full_le_lduw_mmu); } @@ -1407,7 +1405,7 @@ tcg_target_ulong helper_le_lduw_mmu(CPUArchState *env, target_ulong addr, static uint64_t full_be_lduw_mmu(CPUArchState *env, target_ulong addr, TCGMemOpIdx oi, uintptr_t retaddr) { - return load_helper(env, addr, oi, retaddr, 2, true, false, + return load_helper(env, addr, oi, retaddr, MO_BEUW, false, full_be_lduw_mmu); } @@ -1420,7 +1418,7 @@ tcg_target_ulong helper_be_lduw_mmu(CPUArchState *env, target_ulong addr, static uint64_t full_le_ldul_mmu(CPUArchState *env, target_ulong addr, TCGMemOpIdx oi, uintptr_t retaddr) { - return load_helper(env, addr, oi, retaddr, 4, false, false, + return load_helper(env, addr, oi, retaddr, MO_LEUL, false, full_le_ldul_mmu); } @@ -1433,7 +1431,7 @@ tcg_target_ulong helper_le_ldul_mmu(CPUArchState *env, target_ulong addr, static uint64_t full_be_ldul_mmu(CPUArchState *env, target_ulong addr, TCGMemOpIdx oi, uintptr_t retaddr) { - return load_helper(env, addr, oi, retaddr, 4, true, false, + return load_helper(env, addr, oi, retaddr, MO_BEUL, false, full_be_ldul_mmu); } @@ -1446,14 +1444,14 @@ tcg_target_ulong helper_be_ldul_mmu(CPUArchState *env, target_ulong addr, uint64_t helper_le_ldq_mmu(CPUArchState *env, target_ulong addr, TCGMemOpIdx oi, uintptr_t retaddr) { - return load_helper(env, addr, oi, retaddr, 8, false, false, + return load_helper(env, addr, oi, retaddr, MO_LEQ, false, helper_le_ldq_mmu); } uint64_t helper_be_ldq_mmu(CPUArchState *env, target_ulong addr, TCGMemOpIdx oi, uintptr_t retaddr) { - return load_helper(env, addr, oi, retaddr, 8, true, false, + return load_helper(env, addr, oi, retaddr, MO_BEQ, false, helper_be_ldq_mmu); } @@ -1499,7 +1497,7 @@ tcg_target_ulong helper_be_ldsl_mmu(CPUArchState *env, target_ulong addr, static inline void __attribute__((always_inline)) store_helper(CPUArchState *env, target_ulong addr, uint64_t val, - TCGMemOpIdx oi, uintptr_t retaddr, size_t size, bool big_endian) + TCGMemOpIdx oi, uintptr_t retaddr, MemOp op) { uintptr_t mmu_idx = get_mmuidx(oi); uintptr_t index = tlb_index(env, mmu_idx, addr); @@ -1508,6 +1506,7 @@ store_helper(CPUArchState *env, target_ulong addr, uint64_t val, const size_t tlb_off = offsetof(CPUTLBEntry, addr_write); unsigned a_bits = get_alignment_bits(get_memop(oi)); void *haddr; + size_t size = memop_size(op); /* Handle CPU specific unaligned behaviour */ if (addr & ((1 << a_bits) - 1)) { @@ -1553,9 +1552,10 @@ store_helper(CPUArchState *env, target_ulong addr, uint64_t val, } } + /* FIXME: io_writex ignores MO_BSWAP. */ io_writex(env, &env_tlb(env)->d[mmu_idx].iotlb[index], mmu_idx, - handle_bswap(val, size, big_endian), - addr, retaddr, size); + handle_bswap(val, op), + addr, retaddr, op); return; } @@ -1591,7 +1591,7 @@ store_helper(CPUArchState *env, target_ulong addr, uint64_t val, */ for (i = 0; i < size; ++i) { uint8_t val8; - if (big_endian) { + if (memop_big_endian(op)) { /* Big-endian extract. */ val8 = val >> (((size - 1) * 8) - (i * 8)); } else { @@ -1605,30 +1605,27 @@ store_helper(CPUArchState *env, target_ulong addr, uint64_t val, do_aligned_access: haddr = (void *)((uintptr_t)addr + entry->addend); - switch (size) { - case 1: + switch (op) { + case MO_8: stb_p(haddr, val); break; - case 2: - if (big_endian) { - stw_be_p(haddr, val); - } else { - stw_le_p(haddr, val); - } + case MO_BEUW: + stw_be_p(haddr, val); break; - case 4: - if (big_endian) { - stl_be_p(haddr, val); - } else { - stl_le_p(haddr, val); - } + case MO_LEUW: + stw_le_p(haddr, val); break; - case 8: - if (big_endian) { - stq_be_p(haddr, val); - } else { - stq_le_p(haddr, val); - } + case MO_BEUL: + stl_be_p(haddr, val); + break; + case MO_LEUL: + stl_le_p(haddr, val); + break; + case MO_BEQ: + stq_be_p(haddr, val); + break; + case MO_LEQ: + stq_le_p(haddr, val); break; default: g_assert_not_reached(); @@ -1639,43 +1636,43 @@ store_helper(CPUArchState *env, target_ulong addr, uint64_t val, void helper_ret_stb_mmu(CPUArchState *env, target_ulong addr, uint8_t val, TCGMemOpIdx oi, uintptr_t retaddr) { - store_helper(env, addr, val, oi, retaddr, 1, false); + store_helper(env, addr, val, oi, retaddr, MO_8); } void helper_le_stw_mmu(CPUArchState *env, target_ulong addr, uint16_t val, TCGMemOpIdx oi, uintptr_t retaddr) { - store_helper(env, addr, val, oi, retaddr, 2, false); + store_helper(env, addr, val, oi, retaddr, MO_LEUW); } void helper_be_stw_mmu(CPUArchState *env, target_ulong addr, uint16_t val, TCGMemOpIdx oi, uintptr_t retaddr) { - store_helper(env, addr, val, oi, retaddr, 2, true); + store_helper(env, addr, val, oi, retaddr, MO_BEUW); } void helper_le_stl_mmu(CPUArchState *env, target_ulong addr, uint32_t val, TCGMemOpIdx oi, uintptr_t retaddr) { - store_helper(env, addr, val, oi, retaddr, 4, false); + store_helper(env, addr, val, oi, retaddr, MO_LEUL); } void helper_be_stl_mmu(CPUArchState *env, target_ulong addr, uint32_t val, TCGMemOpIdx oi, uintptr_t retaddr) { - store_helper(env, addr, val, oi, retaddr, 4, true); + store_helper(env, addr, val, oi, retaddr, MO_BEUL); } void helper_le_stq_mmu(CPUArchState *env, target_ulong addr, uint64_t val, TCGMemOpIdx oi, uintptr_t retaddr) { - store_helper(env, addr, val, oi, retaddr, 8, false); + store_helper(env, addr, val, oi, retaddr, MO_LEQ); } void helper_be_stq_mmu(CPUArchState *env, target_ulong addr, uint64_t val, TCGMemOpIdx oi, uintptr_t retaddr) { - store_helper(env, addr, val, oi, retaddr, 8, true); + store_helper(env, addr, val, oi, retaddr, MO_BEQ); } /* First set of helpers allows passing in of OI and RETADDR. This makes @@ -1740,8 +1737,7 @@ void helper_be_stq_mmu(CPUArchState *env, target_ulong addr, uint64_t val, static uint64_t full_ldub_cmmu(CPUArchState *env, target_ulong addr, TCGMemOpIdx oi, uintptr_t retaddr) { - return load_helper(env, addr, oi, retaddr, 1, false, true, - full_ldub_cmmu); + return load_helper(env, addr, oi, retaddr, MO_8, true, full_ldub_cmmu); } uint8_t helper_ret_ldb_cmmu(CPUArchState *env, target_ulong addr, @@ -1753,7 +1749,7 @@ uint8_t helper_ret_ldb_cmmu(CPUArchState *env, target_ulong addr, static uint64_t full_le_lduw_cmmu(CPUArchState *env, target_ulong addr, TCGMemOpIdx oi, uintptr_t retaddr) { - return load_helper(env, addr, oi, retaddr, 2, false, true, + return load_helper(env, addr, oi, retaddr, MO_LEUW, true, full_le_lduw_cmmu); } @@ -1766,7 +1762,7 @@ uint16_t helper_le_ldw_cmmu(CPUArchState *env, target_ulong addr, static uint64_t full_be_lduw_cmmu(CPUArchState *env, target_ulong addr, TCGMemOpIdx oi, uintptr_t retaddr) { - return load_helper(env, addr, oi, retaddr, 2, true, true, + return load_helper(env, addr, oi, retaddr, MO_BEUW, true, full_be_lduw_cmmu); } @@ -1779,7 +1775,7 @@ uint16_t helper_be_ldw_cmmu(CPUArchState *env, target_ulong addr, static uint64_t full_le_ldul_cmmu(CPUArchState *env, target_ulong addr, TCGMemOpIdx oi, uintptr_t retaddr) { - return load_helper(env, addr, oi, retaddr, 4, false, true, + return load_helper(env, addr, oi, retaddr, MO_LEUL, true, full_le_ldul_cmmu); } @@ -1792,7 +1788,7 @@ uint32_t helper_le_ldl_cmmu(CPUArchState *env, target_ulong addr, static uint64_t full_be_ldul_cmmu(CPUArchState *env, target_ulong addr, TCGMemOpIdx oi, uintptr_t retaddr) { - return load_helper(env, addr, oi, retaddr, 4, true, true, + return load_helper(env, addr, oi, retaddr, MO_BEUL, true, full_be_ldul_cmmu); } @@ -1805,13 +1801,13 @@ uint32_t helper_be_ldl_cmmu(CPUArchState *env, target_ulong addr, uint64_t helper_le_ldq_cmmu(CPUArchState *env, target_ulong addr, TCGMemOpIdx oi, uintptr_t retaddr) { - return load_helper(env, addr, oi, retaddr, 8, false, true, + return load_helper(env, addr, oi, retaddr, MO_LEQ, true, helper_le_ldq_cmmu); } uint64_t helper_be_ldq_cmmu(CPUArchState *env, target_ulong addr, TCGMemOpIdx oi, uintptr_t retaddr) { - return load_helper(env, addr, oi, retaddr, 8, true, true, + return load_helper(env, addr, oi, retaddr, MO_BEQ, true, helper_be_ldq_cmmu); } diff --git a/include/exec/memop.h b/include/exec/memop.h index 47a5500..e6e03d9 100644 --- a/include/exec/memop.h +++ b/include/exec/memop.h @@ -129,4 +129,10 @@ static inline MemOp size_memop(unsigned size) #endif } +/* Big endianness from MemOp. */ +static inline bool memop_big_endian(MemOp op) +{ + return (op & MO_BSWAP) == MO_BE; +} + #endif diff --git a/memory.c b/memory.c index 11db6ec..264c624 100644 --- a/memory.c +++ b/memory.c @@ -343,15 +343,6 @@ static void flatview_simplify(FlatView *view) } } -static bool memory_region_big_endian(MemoryRegion *mr) -{ -#ifdef TARGET_WORDS_BIGENDIAN - return mr->ops->endianness != MO_LE; -#else - return mr->ops->endianness == MO_BE; -#endif -} - static bool memory_region_wrong_endianness(MemoryRegion *mr) { #ifdef TARGET_WORDS_BIGENDIAN @@ -564,7 +555,7 @@ static MemTxResult access_with_adjusted_size(hwaddr addr, /* FIXME: support unaligned access? */ access_size = MAX(MIN(size, access_size_max), access_size_min); access_mask = MAKE_64BIT_MASK(0, access_size * 8); - if (memory_region_big_endian(mr)) { + if (memop_big_endian(mr->ops->endianness)) { for (i = 0; i < size; i += access_size) { r |= access_fn(mr, addr + i, value, access_size, (size - access_size - i) * 8, access_mask, attrs);