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[Qemu-devel] [PATCH v2 09/27] tcg: Add atomic helpers
|
From: |
Richard Henderson |
|
Subject: |
[Qemu-devel] [PATCH v2 09/27] tcg: Add atomic helpers |
|
Date: |
Fri, 1 Jul 2016 10:04:35 -0700 |
Add all of cmpxchg, op_fetch, fetch_op, and xchg.
Handle both endian-ness, and sizes up to 8.
Handle expanding non-atomically, when emulating in serial.
Signed-off-by: Richard Henderson <address@hidden>
---
Makefile.objs | 1 -
Makefile.target | 1 +
atomic_template.h | 220 ++++++++++++++++++++++++++++++++++++
cputlb.c | 3 +-
softmmu_template.h | 178 ++++++++++++++++++++++++++++-
tcg-runtime.c | 27 +++--
tcg/tcg-op.c | 324 +++++++++++++++++++++++++++++++++++++++++++++++++++++
tcg/tcg-op.h | 44 ++++++++
tcg/tcg-runtime.h | 75 +++++++++++++
tcg/tcg.h | 53 +++++++++
10 files changed, 909 insertions(+), 17 deletions(-)
create mode 100644 atomic_template.h
diff --git a/Makefile.objs b/Makefile.objs
index 7f1f0a3..f40bdfd 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -88,7 +88,6 @@ endif
#######################################################################
# Target-independent parts used in system and user emulation
-common-obj-y += tcg-runtime.o
common-obj-y += hw/
common-obj-y += qom/
common-obj-y += disas/
diff --git a/Makefile.target b/Makefile.target
index d720b3e..0ca9ed6 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -94,6 +94,7 @@ obj-$(CONFIG_TCG_INTERPRETER) += disas/tci.o
obj-y += fpu/softfloat.o
obj-y += target-$(TARGET_BASE_ARCH)/
obj-y += disas.o
+obj-y += tcg-runtime.o
obj-$(call notempty,$(TARGET_XML_FILES)) += gdbstub-xml.o
obj-$(call lnot,$(CONFIG_KVM)) += kvm-stub.o
diff --git a/atomic_template.h b/atomic_template.h
new file mode 100644
index 0000000..a755853
--- /dev/null
+++ b/atomic_template.h
@@ -0,0 +1,220 @@
+/*
+ * Atomic helper templates
+ * Included from tcg-runtime.c.
+ *
+ * Copyright (c) 2016 Red Hat, Inc
+ *
+ * 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 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 <http://www.gnu.org/licenses/>.
+ */
+
+#define DATA_SIZE (1 << SHIFT)
+
+#if DATA_SIZE == 8
+#define SUFFIX q
+#define DATA_TYPE uint64_t
+#define ABI_TYPE uint64_t
+#define BSWAP bswap64
+#elif DATA_SIZE == 4
+#define SUFFIX l
+#define DATA_TYPE uint32_t
+#define ABI_TYPE uint32_t
+#define BSWAP bswap32
+#elif DATA_SIZE == 2
+#define SUFFIX w
+#define DATA_TYPE uint16_t
+#define ABI_TYPE uint32_t
+#define BSWAP bswap16
+#elif DATA_SIZE == 1
+#define SUFFIX b
+#define DATA_TYPE uint8_t
+#define ABI_TYPE uint32_t
+#else
+#error unsupported data size
+#endif
+
+#ifdef CONFIG_USER_ONLY
+
+#if DATA_SIZE == 1
+# define HE_SUFFIX
+#elif defined(HOST_WORDS_BIGENDIAN)
+# define HE_SUFFIX _be
+# define RE_SUFFIX _le
+#else
+# define HE_SUFFIX _le
+# define RE_SUFFIX _be
+#endif
+
+ABI_TYPE HELPER(glue(glue(atomic_cmpxchg, SUFFIX), HE_SUFFIX))
+ (target_ulong addr, ABI_TYPE cmpv, ABI_TYPE newv)
+{
+ DATA_TYPE *haddr = g2h(addr);
+ return atomic_cmpxchg(haddr, cmpv, newv);
+}
+
+#define GEN_ATOMIC_HELPER_HE(NAME) \
+ABI_TYPE HELPER(glue(glue(atomic_##NAME, SUFFIX), HE_SUFFIX)) \
+ (target_ulong addr, ABI_TYPE val) \
+{ \
+ DATA_TYPE *haddr = g2h(addr); \
+ return atomic_##NAME(haddr, val); \
+} \
+
+GEN_ATOMIC_HELPER_HE(fetch_add)
+GEN_ATOMIC_HELPER_HE(fetch_and)
+GEN_ATOMIC_HELPER_HE(fetch_or)
+GEN_ATOMIC_HELPER_HE(fetch_xor)
+GEN_ATOMIC_HELPER_HE(add_fetch)
+GEN_ATOMIC_HELPER_HE(and_fetch)
+GEN_ATOMIC_HELPER_HE(or_fetch)
+GEN_ATOMIC_HELPER_HE(xor_fetch)
+GEN_ATOMIC_HELPER_HE(xchg)
+
+#undef GEN_ATOMIC_HELPER_HE
+
+#if DATA_SIZE > 1
+
+ABI_TYPE HELPER(glue(glue(atomic_cmpxchg, SUFFIX), RE_SUFFIX))
+ (target_ulong addr, ABI_TYPE cmpv, ABI_TYPE newv)
+{
+ DATA_TYPE *haddr = g2h(addr);
+ return BSWAP(atomic_cmpxchg(haddr, BSWAP(cmpv), BSWAP(newv)));
+}
+
+#define GEN_ATOMIC_HELPER_RE(NAME) \
+ABI_TYPE HELPER(glue(glue(atomic_##NAME, SUFFIX), RE_SUFFIX)) \
+ (target_ulong addr, ABI_TYPE val) \
+{ \
+ DATA_TYPE *haddr = g2h(addr); \
+ return BSWAP(atomic_##NAME(haddr, BSWAP(val))); \
+}
+
+GEN_ATOMIC_HELPER_RE(fetch_and)
+GEN_ATOMIC_HELPER_RE(fetch_or)
+GEN_ATOMIC_HELPER_RE(fetch_xor)
+GEN_ATOMIC_HELPER_RE(and_fetch)
+GEN_ATOMIC_HELPER_RE(or_fetch)
+GEN_ATOMIC_HELPER_RE(xor_fetch)
+GEN_ATOMIC_HELPER_RE(xchg)
+
+/* Note that for addition, we need to use a separate cmpxchg loop instead
+ of bswaps for the reverse-host-endian helpers. */
+ABI_TYPE HELPER(glue(glue(atomic_fetch_add, SUFFIX), RE_SUFFIX))
+ (target_ulong addr, ABI_TYPE val)
+{
+ DATA_TYPE ldo, ldn, ret, sto;
+ DATA_TYPE *haddr = g2h(addr);
+
+ ldo = *haddr;
+ while (1) {
+ ret = BSWAP(ldo);
+ sto = BSWAP(ret + val);
+ ldn = atomic_cmpxchg(haddr, ldo, sto);
+ if (ldn == ldo) {
+ return ret;
+ }
+ ldo = ldn;
+ }
+}
+
+ABI_TYPE HELPER(glue(glue(atomic_add_fetch, SUFFIX), RE_SUFFIX))
+ (target_ulong addr, ABI_TYPE val)
+{
+ DATA_TYPE ldo, ldn, ret, sto;
+ DATA_TYPE *haddr = g2h(addr);
+
+ ldo = *haddr;
+ while (1) {
+ ret = BSWAP(ldo) + val;
+ sto = BSWAP(ret);
+ ldn = atomic_cmpxchg(haddr, ldo, sto);
+ if (ldn == ldo) {
+ return ret;
+ }
+ ldo = ldn;
+ }
+}
+
+#undef GEN_ATOMIC_HELPER_RE
+#endif /* DATA_SIZE > 1 */
+
+#undef HE_SUFFIX
+#undef RE_SUFFIX
+
+#else /* !CONFIG_USER_ONLY */
+
+#if DATA_SIZE == 1
+#define LE_SUFFIX
+#else
+#define LE_SUFFIX _le
+#endif
+
+ABI_TYPE HELPER(glue(glue(atomic_cmpxchg, SUFFIX), LE_SUFFIX))
+ (CPUArchState *env, target_ulong addr,
+ ABI_TYPE cmpv, ABI_TYPE newv, uint32_t oi)
+{
+ return glue(glue(glue(helper_atomic_cmpxchg, SUFFIX), LE_SUFFIX), _mmu)
+ (env, addr, cmpv, newv, oi, GETPC());
+}
+
+#define GEN_ATOMIC_HELPER(NAME, S) \
+ABI_TYPE HELPER(glue(glue(atomic_##NAME, SUFFIX), S)) \
+ (CPUArchState *env, target_ulong addr, ABI_TYPE val, uint32_t oi) \
+{ \
+ return glue(glue(glue(helper_atomic_##NAME, SUFFIX), S), _mmu) \
+ (env, addr, val, oi, GETPC()); \
+}
+
+GEN_ATOMIC_HELPER(fetch_add, LE_SUFFIX)
+GEN_ATOMIC_HELPER(fetch_and, LE_SUFFIX)
+GEN_ATOMIC_HELPER(fetch_or, LE_SUFFIX)
+GEN_ATOMIC_HELPER(fetch_xor, LE_SUFFIX)
+GEN_ATOMIC_HELPER(add_fetch, LE_SUFFIX)
+GEN_ATOMIC_HELPER(and_fetch, LE_SUFFIX)
+GEN_ATOMIC_HELPER(or_fetch, LE_SUFFIX)
+GEN_ATOMIC_HELPER(xor_fetch, LE_SUFFIX)
+GEN_ATOMIC_HELPER(xchg, LE_SUFFIX)
+
+#if DATA_SIZE > 1
+
+ABI_TYPE HELPER(glue(glue(atomic_cmpxchg, SUFFIX), _be))
+ (CPUArchState *env, target_ulong addr,
+ ABI_TYPE cmpv, ABI_TYPE newv, uint32_t oi)
+{
+ return glue(glue(helper_atomic_cmpxchg, SUFFIX), _be_mmu)
+ (env, addr, cmpv, newv, oi, GETPC());
+}
+
+GEN_ATOMIC_HELPER(fetch_add, _be)
+GEN_ATOMIC_HELPER(fetch_and, _be)
+GEN_ATOMIC_HELPER(fetch_or, _be)
+GEN_ATOMIC_HELPER(fetch_xor, _be)
+GEN_ATOMIC_HELPER(add_fetch, _be)
+GEN_ATOMIC_HELPER(and_fetch, _be)
+GEN_ATOMIC_HELPER(or_fetch, _be)
+GEN_ATOMIC_HELPER(xor_fetch, _be)
+GEN_ATOMIC_HELPER(xchg, _be)
+
+#endif /* DATA_SIZE > 1 */
+
+#undef GEN_ATOMIC_HELPER
+#undef LE_SUFFIX
+
+#endif /* CONFIG_USER_ONLY */
+
+#undef BSWAP
+#undef ABI_TYPE
+#undef DATA_TYPE
+#undef SUFFIX
+#undef DATA_SIZE
+#undef SHIFT
diff --git a/cputlb.c b/cputlb.c
index 079e497..5272456 100644
--- a/cputlb.c
+++ b/cputlb.c
@@ -23,15 +23,14 @@
#include "exec/memory.h"
#include "exec/address-spaces.h"
#include "exec/cpu_ldst.h"
-
#include "exec/cputlb.h"
-
#include "exec/memory-internal.h"
#include "exec/ram_addr.h"
#include "exec/exec-all.h"
#include "tcg/tcg.h"
#include "qemu/error-report.h"
#include "exec/log.h"
+#include "exec/helper-proto.h"
/* DEBUG defines, enable DEBUG_TLB_LOG to log to the CPU_LOG_MMU target */
/* #define DEBUG_TLB */
diff --git a/softmmu_template.h b/softmmu_template.h
index 4d378ca..76712b9 100644
--- a/softmmu_template.h
+++ b/softmmu_template.h
@@ -51,7 +51,6 @@
#error unsupported data size
#endif
-
/* For the benefit of TCG generated code, we want to avoid the complication
of ABI-specific return type promotion and always return a value extended
to the register size of the host. This is tcg_target_long, except in the
@@ -508,11 +507,184 @@ void probe_write(CPUArchState *env, target_ulong addr,
int mmu_idx,
}
}
#endif
+
+#if DATA_SIZE == 1
+# define HE_SUFFIX _mmu
+#elif defined(HOST_WORDS_BIGENDIAN)
+# define HE_SUFFIX _be_mmu
+# define RE_SUFFIX _le_mmu
+#else
+# define HE_SUFFIX _le_mmu
+# define RE_SUFFIX _be_mmu
+#endif
+
+#define ATOMIC_MMU_BODY \
+ DATA_TYPE *haddr; \
+ do { \
+ unsigned mmu_idx = get_mmuidx(oi); \
+ int index = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); \
+ CPUTLBEntry *tlbe = &env->tlb_table[mmu_idx][index]; \
+ target_ulong tlb_addr = tlbe->addr_write; \
+ int a_bits = get_alignment_bits(get_memop(oi)); \
+ \
+ /* Adjust the given return address. */ \
+ retaddr -= GETPC_ADJ; \
+ \
+ /* Enforce guest required alignment. */ \
+ if (unlikely(a_bits > 0 && (addr & ((1 << a_bits) - 1)))) { \
+ /* ??? Maybe indicate atomic op to cpu_unaligned_access */ \
+ cpu_unaligned_access(ENV_GET_CPU(env), addr, MMU_DATA_STORE, \
+ mmu_idx, retaddr); \
+ } \
+ /* Enforce qemu required alignment. */ \
+ if (unlikely(addr & ((1 << SHIFT) - 1))) { \
+ /* We get here if guest alignment was not requested, \
+ or was not enforced by cpu_unaligned_access above. \
+ We might widen the access and emulate, but for now \
+ mark an exception and exit the cpu loop. */ \
+ cpu_loop_exit_atomic(ENV_GET_CPU(env), retaddr); \
+ } \
+ \
+ /* Check TLB entry and enforce page permissions. */ \
+ if ((addr & TARGET_PAGE_MASK) \
+ != (tlb_addr & (TARGET_PAGE_MASK | TLB_INVALID_MASK))) { \
+ if (!VICTIM_TLB_HIT(addr_write)) { \
+ tlb_fill(ENV_GET_CPU(env), addr, MMU_DATA_STORE, \
+ mmu_idx, retaddr); \
+ } \
+ tlb_addr = tlbe->addr_write; \
+ } else if (unlikely(tlbe->addr_read != tlb_addr)) { \
+ /* Let the guest notice RMW on a write-only page. */ \
+ tlb_fill(ENV_GET_CPU(env), addr, MMU_DATA_LOAD, \
+ mmu_idx, retaddr); \
+ } \
+ \
+ /* Notice an IO access. */ \
+ if (unlikely(tlb_addr & ~TARGET_PAGE_MASK)) { \
+ /* There's really nothing that can be done to \
+ support this apart from stop-the-world. */ \
+ cpu_loop_exit_atomic(ENV_GET_CPU(env), retaddr); \
+ } \
+ haddr = (DATA_TYPE *)((uintptr_t)addr + tlbe->addend); \
+ } while (0)
+
+DATA_TYPE glue(glue(helper_atomic_cmpxchg, SUFFIX), HE_SUFFIX)
+ (CPUArchState *env, target_ulong addr, DATA_TYPE cmpv, DATA_TYPE newv,
+ TCGMemOpIdx oi, uintptr_t retaddr)
+{
+ ATOMIC_MMU_BODY;
+ return atomic_cmpxchg(haddr, cmpv, newv);
+}
+
+#define GEN_ATOMIC_HELPER(NAME) \
+DATA_TYPE glue(glue(glue(helper_atomic_, NAME), SUFFIX), HE_SUFFIX) \
+ (CPUArchState *env, target_ulong addr, DATA_TYPE val, \
+ TCGMemOpIdx oi, uintptr_t retaddr) \
+{ \
+ ATOMIC_MMU_BODY; \
+ return glue(atomic_, NAME)(haddr, val); \
+}
+
+GEN_ATOMIC_HELPER(fetch_add)
+GEN_ATOMIC_HELPER(fetch_and)
+GEN_ATOMIC_HELPER(fetch_or)
+GEN_ATOMIC_HELPER(fetch_xor)
+
+GEN_ATOMIC_HELPER(add_fetch)
+GEN_ATOMIC_HELPER(and_fetch)
+GEN_ATOMIC_HELPER(or_fetch)
+GEN_ATOMIC_HELPER(xor_fetch)
+
+GEN_ATOMIC_HELPER(xchg)
+
+#undef GEN_ATOMIC_HELPER
+
+#if DATA_SIZE > 1
+DATA_TYPE glue(glue(helper_atomic_cmpxchg, SUFFIX), RE_SUFFIX)
+ (CPUArchState *env, target_ulong addr, DATA_TYPE cmpv, DATA_TYPE newv,
+ TCGMemOpIdx oi, uintptr_t retaddr)
+{
+ DATA_TYPE retv;
+ cmpv = BSWAP(cmpv);
+ newv = BSWAP(newv);
+ retv = (glue(glue(helper_atomic_cmpxchg, SUFFIX), HE_SUFFIX)
+ (env, addr, cmpv, newv, oi, retaddr));
+ return BSWAP(retv);
+}
+
+#define GEN_ATOMIC_HELPER(NAME) \
+DATA_TYPE glue(glue(glue(helper_atomic_, NAME), SUFFIX), RE_SUFFIX) \
+ (CPUArchState *env, target_ulong addr, DATA_TYPE val, \
+ TCGMemOpIdx oi, uintptr_t retaddr) \
+{ \
+ DATA_TYPE ret; \
+ val = BSWAP(val); \
+ ret = (glue(glue(glue(helper_atomic_, NAME), SUFFIX), HE_SUFFIX) \
+ (env, addr, val, oi, retaddr)); \
+ return BSWAP(ret); \
+}
+
+GEN_ATOMIC_HELPER(fetch_and)
+GEN_ATOMIC_HELPER(fetch_or)
+GEN_ATOMIC_HELPER(fetch_xor)
+
+GEN_ATOMIC_HELPER(and_fetch)
+GEN_ATOMIC_HELPER(or_fetch)
+GEN_ATOMIC_HELPER(xor_fetch)
+
+GEN_ATOMIC_HELPER(xchg)
+
+#undef GEN_ATOMIC_HELPER
+
+/* Note that for addition, we need to use a separate cmpxchg loop instead
+ of bswaps around the host-endian helpers. */
+DATA_TYPE glue(glue(helper_atomic_fetch_add, SUFFIX), RE_SUFFIX)
+ (CPUArchState *env, target_ulong addr, DATA_TYPE val,
+ TCGMemOpIdx oi, uintptr_t retaddr)
+{
+ DATA_TYPE ldo, ldn, ret, sto;
+ ATOMIC_MMU_BODY;
+
+ ldo = *haddr;
+ while (1) {
+ ret = BSWAP(ldo);
+ sto = BSWAP(ret + val);
+ ldn = atomic_cmpxchg(haddr, ldo, sto);
+ if (ldn == ldo) {
+ return ret;
+ }
+ ldo = ldn;
+ }
+}
+
+DATA_TYPE glue(glue(helper_atomic_add_fetch, SUFFIX), RE_SUFFIX)
+ (CPUArchState *env, target_ulong addr, DATA_TYPE val,
+ TCGMemOpIdx oi, uintptr_t retaddr)
+{
+ DATA_TYPE ldo, ldn, ret, sto;
+ ATOMIC_MMU_BODY;
+
+ ldo = *haddr;
+ while (1) {
+ ret = BSWAP(ldo) + val;
+ sto = BSWAP(ret);
+ ldn = atomic_cmpxchg(haddr, ldo, sto);
+ if (ldn == ldo) {
+ return ret;
+ }
+ ldo = ldn;
+ }
+}
+#endif /* DATA_SIZE > 1 */
+
+#undef ATOMIC_MMU_BODY
+
#endif /* !defined(SOFTMMU_CODE_ACCESS) */
#undef READ_ACCESS_TYPE
#undef SHIFT
#undef DATA_TYPE
+#undef DATAX_TYPE
#undef SUFFIX
#undef LSUFFIX
#undef DATA_SIZE
@@ -524,8 +696,6 @@ void probe_write(CPUArchState *env, target_ulong addr, int
mmu_idx,
#undef BSWAP
#undef TGT_BE
#undef TGT_LE
-#undef CPU_BE
-#undef CPU_LE
#undef helper_le_ld_name
#undef helper_be_ld_name
#undef helper_le_lds_name
@@ -534,3 +704,5 @@ void probe_write(CPUArchState *env, target_ulong addr, int
mmu_idx,
#undef helper_be_st_name
#undef helper_te_ld_name
#undef helper_te_st_name
+#undef HE_SUFFIX
+#undef RE_SUFFIX
diff --git a/tcg-runtime.c b/tcg-runtime.c
index ea2ad64..63f78fc 100644
--- a/tcg-runtime.c
+++ b/tcg-runtime.c
@@ -23,17 +23,10 @@
*/
#include "qemu/osdep.h"
#include "qemu/host-utils.h"
-
-/* This file is compiled once, and thus we can't include the standard
- "exec/helper-proto.h", which has includes that are target specific. */
-
-#include "exec/helper-head.h"
-
-#define DEF_HELPER_FLAGS_2(name, flags, ret, t1, t2) \
- dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2));
-
-#include "tcg-runtime.h"
-
+#include "cpu.h"
+#include "exec/helper-proto.h"
+#include "exec/cpu_ldst.h"
+#include "exec/exec-all.h"
/* 32-bit helpers */
@@ -107,3 +100,15 @@ int64_t HELPER(mulsh_i64)(int64_t arg1, int64_t arg2)
muls64(&l, &h, arg1, arg2);
return h;
}
+
+#define SHIFT 0
+#include "atomic_template.h"
+
+#define SHIFT 1
+#include "atomic_template.h"
+
+#define SHIFT 2
+#include "atomic_template.h"
+
+#define SHIFT 3
+#include "atomic_template.h"
diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c
index 293b854..bc72c17 100644
--- a/tcg/tcg-op.c
+++ b/tcg/tcg-op.c
@@ -1958,3 +1958,327 @@ void tcg_gen_qemu_st_i64(TCGv_i64 val, TCGv addr,
TCGArg idx, TCGMemOp memop)
addr, trace_mem_get_info(memop, 1));
gen_ldst_i64(INDEX_op_qemu_st_i64, val, addr, memop, idx);
}
+
+static void tcg_gen_ext_i32(TCGv_i32 ret, TCGv_i32 val, TCGMemOp opc)
+{
+ switch (opc & MO_SSIZE) {
+ case MO_SB:
+ tcg_gen_ext8s_i32(ret, val);
+ break;
+ case MO_UB:
+ tcg_gen_ext8u_i32(ret, val);
+ break;
+ case MO_SW:
+ tcg_gen_ext16s_i32(ret, val);
+ break;
+ case MO_UW:
+ tcg_gen_ext16u_i32(ret, val);
+ break;
+ default:
+ tcg_gen_mov_i32(ret, val);
+ break;
+ }
+}
+
+static void tcg_gen_ext_i64(TCGv_i64 ret, TCGv_i64 val, TCGMemOp opc)
+{
+ switch (opc & MO_SSIZE) {
+ case MO_SB:
+ tcg_gen_ext8s_i64(ret, val);
+ break;
+ case MO_UB:
+ tcg_gen_ext8u_i64(ret, val);
+ break;
+ case MO_SW:
+ tcg_gen_ext16s_i64(ret, val);
+ break;
+ case MO_UW:
+ tcg_gen_ext16u_i64(ret, val);
+ break;
+ case MO_SL:
+ tcg_gen_ext32s_i64(ret, val);
+ break;
+ case MO_UL:
+ tcg_gen_ext32u_i64(ret, val);
+ break;
+ default:
+ tcg_gen_mov_i64(ret, val);
+ break;
+ }
+}
+
+#ifdef CONFIG_USER_ONLY
+typedef void (*gen_atomic_cx_i32)(TCGv_i32, TCGv, TCGv_i32, TCGv_i32);
+typedef void (*gen_atomic_cx_i64)(TCGv_i64, TCGv, TCGv_i64, TCGv_i64);
+typedef void (*gen_atomic_op_i32)(TCGv_i32, TCGv, TCGv_i32);
+typedef void (*gen_atomic_op_i64)(TCGv_i64, TCGv, TCGv_i64);
+#else
+typedef void (*gen_atomic_cx_i32)(TCGv_i32, TCGv_env, TCGv,
+ TCGv_i32, TCGv_i32, TCGv_i32);
+typedef void (*gen_atomic_cx_i64)(TCGv_i64, TCGv_env, TCGv,
+ TCGv_i64, TCGv_i64, TCGv_i32);
+typedef void (*gen_atomic_op_i32)(TCGv_i32, TCGv_env, TCGv, TCGv_i32,
TCGv_i32);
+typedef void (*gen_atomic_op_i64)(TCGv_i64, TCGv_env, TCGv, TCGv_i64,
TCGv_i32);
+#endif
+
+static void * const table_cmpxchg[16] = {
+ [MO_8] = gen_helper_atomic_cmpxchgb,
+ [MO_16 | MO_LE] = gen_helper_atomic_cmpxchgw_le,
+ [MO_16 | MO_BE] = gen_helper_atomic_cmpxchgw_be,
+ [MO_32 | MO_LE] = gen_helper_atomic_cmpxchgl_le,
+ [MO_32 | MO_BE] = gen_helper_atomic_cmpxchgl_be,
+ [MO_64 | MO_LE] = gen_helper_atomic_cmpxchgq_le,
+ [MO_64 | MO_BE] = gen_helper_atomic_cmpxchgq_be,
+};
+
+void tcg_gen_atomic_cmpxchg_i32(TCGv_i32 retv, TCGv addr, TCGv_i32 cmpv,
+ TCGv_i32 newv, TCGArg idx, TCGMemOp memop)
+{
+ memop = tcg_canonicalize_memop(memop, 0, 0);
+
+ if (!parallel_cpus) {
+ TCGv_i32 t1 = tcg_temp_new_i32();
+ TCGv_i32 t2 = tcg_temp_new_i32();
+
+ tcg_gen_ext_i32(t2, cmpv, memop & MO_SIZE);
+
+ tcg_gen_qemu_ld_i32(t1, addr, idx, memop & ~MO_SIGN);
+ tcg_gen_movcond_i32(TCG_COND_EQ, t2, t1, t2, newv, t1);
+ tcg_gen_qemu_st_i32(t2, addr, idx, memop);
+ tcg_temp_free_i32(t2);
+
+ if (memop & MO_SIGN) {
+ tcg_gen_ext_i32(retv, t1, memop);
+ } else {
+ tcg_gen_mov_i32(retv, t1);
+ }
+ tcg_temp_free_i32(t1);
+ } else {
+ gen_atomic_cx_i32 gen;
+
+ gen = table_cmpxchg[memop & (MO_SIZE | MO_BSWAP)];
+ tcg_debug_assert(gen != NULL);
+
+#ifdef CONFIG_USER_ONLY
+ gen(retv, addr, cmpv, newv);
+#else
+ {
+ TCGv_i32 oi = tcg_const_i32(make_memop_idx(memop & ~MO_SIGN, idx));
+ gen(retv, tcg_ctx.tcg_env, addr, cmpv, newv, oi);
+ tcg_temp_free_i32(oi);
+ }
+#endif
+
+ if (memop & MO_SIGN) {
+ tcg_gen_ext_i32(retv, retv, memop);
+ }
+ }
+}
+
+void tcg_gen_atomic_cmpxchg_i64(TCGv_i64 retv, TCGv addr, TCGv_i64 cmpv,
+ TCGv_i64 newv, TCGArg idx, TCGMemOp memop)
+{
+ memop = tcg_canonicalize_memop(memop, 1, 0);
+
+ if (!parallel_cpus) {
+ TCGv_i64 t1 = tcg_temp_new_i64();
+ TCGv_i64 t2 = tcg_temp_new_i64();
+
+ tcg_gen_ext_i64(t2, cmpv, memop & MO_SIZE);
+
+ tcg_gen_qemu_ld_i64(t1, addr, idx, memop & ~MO_SIGN);
+ tcg_gen_movcond_i64(TCG_COND_EQ, t2, t1, t2, newv, t1);
+ tcg_gen_qemu_st_i64(t2, addr, idx, memop);
+ tcg_temp_free_i64(t2);
+
+ if (memop & MO_SIGN) {
+ tcg_gen_ext_i64(retv, t1, memop);
+ } else {
+ tcg_gen_mov_i64(retv, t1);
+ }
+ tcg_temp_free_i64(t1);
+ } else if ((memop & MO_SIZE) == MO_64) {
+ gen_atomic_cx_i64 gen;
+
+ gen = table_cmpxchg[memop & (MO_SIZE | MO_BSWAP)];
+ tcg_debug_assert(gen != NULL);
+
+#ifdef CONFIG_USER_ONLY
+ gen(retv, addr, cmpv, newv);
+#else
+ TCGv_i32 oi = tcg_const_i32(make_memop_idx(memop, idx));
+ gen(retv, tcg_ctx.tcg_env, addr, cmpv, newv, oi);
+ tcg_temp_free_i32(oi);
+#endif
+ } else {
+ TCGv_i32 c32 = tcg_temp_new_i32();
+ TCGv_i32 n32 = tcg_temp_new_i32();
+ TCGv_i32 r32 = tcg_temp_new_i32();
+
+ tcg_gen_extrl_i64_i32(c32, cmpv);
+ tcg_gen_extrl_i64_i32(n32, newv);
+ tcg_gen_atomic_cmpxchg_i32(r32, addr, c32, n32, idx, memop & ~MO_SIGN);
+ tcg_temp_free_i32(c32);
+ tcg_temp_free_i32(n32);
+
+ tcg_gen_extu_i32_i64(retv, r32);
+ tcg_temp_free_i32(r32);
+
+ if (memop & MO_SIGN) {
+ tcg_gen_ext_i64(retv, retv, memop);
+ }
+ }
+}
+
+static void do_nonatomic_op_i32(TCGv_i32 ret, TCGv addr, TCGv_i32 val,
+ TCGArg idx, TCGMemOp memop, bool new_val,
+ void (*gen)(TCGv_i32, TCGv_i32, TCGv_i32))
+{
+ TCGv_i32 t1 = tcg_temp_new_i32();
+ TCGv_i32 t2 = tcg_temp_new_i32();
+
+ memop = tcg_canonicalize_memop(memop, 0, 0);
+
+ tcg_gen_qemu_ld_i32(t1, addr, idx, memop & ~MO_SIGN);
+ gen(t2, t1, val);
+ tcg_gen_qemu_st_i32(t2, addr, idx, memop);
+
+ tcg_gen_ext_i32(ret, (new_val ? t2 : t1), memop);
+ tcg_temp_free_i32(t1);
+ tcg_temp_free_i32(t2);
+}
+
+static void do_atomic_op_i32(TCGv_i32 ret, TCGv addr, TCGv_i32 val,
+ TCGArg idx, TCGMemOp memop, void * const table[])
+{
+ gen_atomic_op_i32 gen;
+
+ memop = tcg_canonicalize_memop(memop, 0, 0);
+
+ gen = table[memop & (MO_SIZE | MO_BSWAP)];
+ tcg_debug_assert(gen != NULL);
+
+#ifdef CONFIG_USER_ONLY
+ gen(ret, addr, val);
+#else
+ {
+ TCGv_i32 oi = tcg_const_i32(make_memop_idx(memop & ~MO_SIGN, idx));
+ gen(ret, tcg_ctx.tcg_env, addr, val, oi);
+ tcg_temp_free_i32(oi);
+ }
+#endif
+
+ if (memop & MO_SIGN) {
+ tcg_gen_ext_i32(ret, ret, memop);
+ }
+}
+
+static void do_nonatomic_op_i64(TCGv_i64 ret, TCGv addr, TCGv_i64 val,
+ TCGArg idx, TCGMemOp memop, bool new_val,
+ void (*gen)(TCGv_i64, TCGv_i64, TCGv_i64))
+{
+ TCGv_i64 t1 = tcg_temp_new_i64();
+ TCGv_i64 t2 = tcg_temp_new_i64();
+
+ memop = tcg_canonicalize_memop(memop, 1, 0);
+
+ tcg_gen_qemu_ld_i64(t1, addr, idx, memop & ~MO_SIGN);
+ gen(t2, t1, val);
+ tcg_gen_qemu_st_i64(t2, addr, idx, memop);
+
+ tcg_gen_ext_i64(ret, (new_val ? t2 : t1), memop);
+ tcg_temp_free_i64(t1);
+ tcg_temp_free_i64(t2);
+}
+
+static void do_atomic_op_i64(TCGv_i64 ret, TCGv addr, TCGv_i64 val,
+ TCGArg idx, TCGMemOp memop, void * const table[])
+{
+ memop = tcg_canonicalize_memop(memop, 1, 0);
+
+ if ((memop & MO_SIZE) == MO_64) {
+ gen_atomic_op_i64 gen;
+
+ gen = table[memop & (MO_SIZE | MO_BSWAP)];
+ tcg_debug_assert(gen != NULL);
+
+#ifdef CONFIG_USER_ONLY
+ gen(ret, addr, val);
+#else
+ {
+ TCGv_i32 oi = tcg_const_i32(make_memop_idx(memop & ~MO_SIGN, idx));
+ gen(ret, tcg_ctx.tcg_env, addr, val, oi);
+ tcg_temp_free_i32(oi);
+ }
+#endif
+ } else {
+ TCGv_i32 v32 = tcg_temp_new_i32();
+ TCGv_i32 r32 = tcg_temp_new_i32();
+
+ tcg_gen_extrl_i64_i32(v32, val);
+ do_atomic_op_i32(r32, addr, v32, idx, memop & ~MO_SIGN, table);
+ tcg_temp_free_i32(v32);
+
+ tcg_gen_extu_i32_i64(ret, r32);
+ tcg_temp_free_i32(r32);
+
+ if (memop & MO_SIGN) {
+ tcg_gen_ext_i64(ret, ret, memop);
+ }
+ }
+}
+
+#define GEN_ATOMIC_HELPER(NAME, OP, NEW) \
+static void * const table_##NAME[16] = { \
+ [MO_8] = gen_helper_atomic_##NAME##b, \
+ [MO_16 | MO_LE] = gen_helper_atomic_##NAME##w_le, \
+ [MO_16 | MO_BE] = gen_helper_atomic_##NAME##w_be, \
+ [MO_32 | MO_LE] = gen_helper_atomic_##NAME##l_le, \
+ [MO_32 | MO_BE] = gen_helper_atomic_##NAME##l_be, \
+ [MO_64 | MO_LE] = gen_helper_atomic_##NAME##q_le, \
+ [MO_64 | MO_BE] = gen_helper_atomic_##NAME##q_be, \
+}; \
+void tcg_gen_atomic_##NAME##_i32 \
+ (TCGv_i32 ret, TCGv addr, TCGv_i32 val, TCGArg idx, TCGMemOp memop) \
+{ \
+ if (parallel_cpus) { \
+ do_atomic_op_i32(ret, addr, val, idx, memop, table_##NAME); \
+ } else { \
+ do_nonatomic_op_i32(ret, addr, val, idx, memop, NEW, \
+ tcg_gen_##OP##_i32); \
+ } \
+} \
+void tcg_gen_atomic_##NAME##_i64 \
+ (TCGv_i64 ret, TCGv addr, TCGv_i64 val, TCGArg idx, TCGMemOp memop) \
+{ \
+ if (parallel_cpus) { \
+ do_atomic_op_i64(ret, addr, val, idx, memop, table_##NAME); \
+ } else { \
+ do_nonatomic_op_i64(ret, addr, val, idx, memop, NEW, \
+ tcg_gen_##OP##_i64); \
+ } \
+}
+
+GEN_ATOMIC_HELPER(fetch_add, add, 0)
+GEN_ATOMIC_HELPER(fetch_and, and, 0)
+GEN_ATOMIC_HELPER(fetch_or, or, 0)
+GEN_ATOMIC_HELPER(fetch_xor, xor, 0)
+
+GEN_ATOMIC_HELPER(add_fetch, add, 1)
+GEN_ATOMIC_HELPER(and_fetch, and, 1)
+GEN_ATOMIC_HELPER(or_fetch, or, 1)
+GEN_ATOMIC_HELPER(xor_fetch, xor, 1)
+
+static void tcg_gen_mov2_i32(TCGv_i32 r, TCGv_i32 a, TCGv_i32 b)
+{
+ tcg_gen_mov_i32(r, b);
+}
+
+static void tcg_gen_mov2_i64(TCGv_i64 r, TCGv_i64 a, TCGv_i64 b)
+{
+ tcg_gen_mov_i64(r, b);
+}
+
+GEN_ATOMIC_HELPER(xchg, mov2, 0)
+
+#undef GEN_ATOMIC_HELPER
diff --git a/tcg/tcg-op.h b/tcg/tcg-op.h
index f217e80..2a845ae 100644
--- a/tcg/tcg-op.h
+++ b/tcg/tcg-op.h
@@ -852,6 +852,30 @@ static inline void tcg_gen_qemu_st64(TCGv_i64 arg, TCGv
addr, int mem_index)
tcg_gen_qemu_st_i64(arg, addr, mem_index, MO_TEQ);
}
+void tcg_gen_atomic_cmpxchg_i32(TCGv_i32, TCGv, TCGv_i32, TCGv_i32,
+ TCGArg, TCGMemOp);
+void tcg_gen_atomic_cmpxchg_i64(TCGv_i64, TCGv, TCGv_i64, TCGv_i64,
+ TCGArg, TCGMemOp);
+
+void tcg_gen_atomic_xchg_i32(TCGv_i32, TCGv, TCGv_i32, TCGArg, TCGMemOp);
+void tcg_gen_atomic_xchg_i64(TCGv_i64, TCGv, TCGv_i64, TCGArg, TCGMemOp);
+void tcg_gen_atomic_fetch_add_i32(TCGv_i32, TCGv, TCGv_i32, TCGArg, TCGMemOp);
+void tcg_gen_atomic_fetch_add_i64(TCGv_i64, TCGv, TCGv_i64, TCGArg, TCGMemOp);
+void tcg_gen_atomic_fetch_and_i32(TCGv_i32, TCGv, TCGv_i32, TCGArg, TCGMemOp);
+void tcg_gen_atomic_fetch_and_i64(TCGv_i64, TCGv, TCGv_i64, TCGArg, TCGMemOp);
+void tcg_gen_atomic_fetch_or_i32(TCGv_i32, TCGv, TCGv_i32, TCGArg, TCGMemOp);
+void tcg_gen_atomic_fetch_or_i64(TCGv_i64, TCGv, TCGv_i64, TCGArg, TCGMemOp);
+void tcg_gen_atomic_fetch_xor_i32(TCGv_i32, TCGv, TCGv_i32, TCGArg, TCGMemOp);
+void tcg_gen_atomic_fetch_xor_i64(TCGv_i64, TCGv, TCGv_i64, TCGArg, TCGMemOp);
+void tcg_gen_atomic_add_fetch_i32(TCGv_i32, TCGv, TCGv_i32, TCGArg, TCGMemOp);
+void tcg_gen_atomic_add_fetch_i64(TCGv_i64, TCGv, TCGv_i64, TCGArg, TCGMemOp);
+void tcg_gen_atomic_and_fetch_i32(TCGv_i32, TCGv, TCGv_i32, TCGArg, TCGMemOp);
+void tcg_gen_atomic_and_fetch_i64(TCGv_i64, TCGv, TCGv_i64, TCGArg, TCGMemOp);
+void tcg_gen_atomic_or_fetch_i32(TCGv_i32, TCGv, TCGv_i32, TCGArg, TCGMemOp);
+void tcg_gen_atomic_or_fetch_i64(TCGv_i64, TCGv, TCGv_i64, TCGArg, TCGMemOp);
+void tcg_gen_atomic_xor_fetch_i32(TCGv_i32, TCGv, TCGv_i32, TCGArg, TCGMemOp);
+void tcg_gen_atomic_xor_fetch_i64(TCGv_i64, TCGv, TCGv_i64, TCGArg, TCGMemOp);
+
#if TARGET_LONG_BITS == 64
#define tcg_gen_movi_tl tcg_gen_movi_i64
#define tcg_gen_mov_tl tcg_gen_mov_i64
@@ -930,6 +954,16 @@ static inline void tcg_gen_qemu_st64(TCGv_i64 arg, TCGv
addr, int mem_index)
#define tcg_gen_sub2_tl tcg_gen_sub2_i64
#define tcg_gen_mulu2_tl tcg_gen_mulu2_i64
#define tcg_gen_muls2_tl tcg_gen_muls2_i64
+#define tcg_gen_atomic_cmpxchg_tl tcg_gen_atomic_cmpxchg_i64
+#define tcg_gen_atomic_xchg_tl tcg_gen_atomic_xchg_i64
+#define tcg_gen_atomic_fetch_add_tl tcg_gen_atomic_fetch_add_i64
+#define tcg_gen_atomic_fetch_and_tl tcg_gen_atomic_fetch_and_i64
+#define tcg_gen_atomic_fetch_or_tl tcg_gen_atomic_fetch_or_i64
+#define tcg_gen_atomic_fetch_xor_tl tcg_gen_atomic_fetch_xor_i64
+#define tcg_gen_atomic_add_fetch_tl tcg_gen_atomic_add_fetch_i64
+#define tcg_gen_atomic_and_fetch_tl tcg_gen_atomic_and_fetch_i64
+#define tcg_gen_atomic_or_fetch_tl tcg_gen_atomic_or_fetch_i64
+#define tcg_gen_atomic_xor_fetch_tl tcg_gen_atomic_xor_fetch_i64
#else
#define tcg_gen_movi_tl tcg_gen_movi_i32
#define tcg_gen_mov_tl tcg_gen_mov_i32
@@ -1007,6 +1041,16 @@ static inline void tcg_gen_qemu_st64(TCGv_i64 arg, TCGv
addr, int mem_index)
#define tcg_gen_sub2_tl tcg_gen_sub2_i32
#define tcg_gen_mulu2_tl tcg_gen_mulu2_i32
#define tcg_gen_muls2_tl tcg_gen_muls2_i32
+#define tcg_gen_atomic_cmpxchg_tl tcg_gen_atomic_cmpxchg_i32
+#define tcg_gen_atomic_xchg_tl tcg_gen_atomic_xchg_i32
+#define tcg_gen_atomic_fetch_add_tl tcg_gen_atomic_fetch_add_i32
+#define tcg_gen_atomic_fetch_and_tl tcg_gen_atomic_fetch_and_i32
+#define tcg_gen_atomic_fetch_or_tl tcg_gen_atomic_fetch_or_i32
+#define tcg_gen_atomic_fetch_xor_tl tcg_gen_atomic_fetch_xor_i32
+#define tcg_gen_atomic_add_fetch_tl tcg_gen_atomic_add_fetch_i32
+#define tcg_gen_atomic_and_fetch_tl tcg_gen_atomic_and_fetch_i32
+#define tcg_gen_atomic_or_fetch_tl tcg_gen_atomic_or_fetch_i32
+#define tcg_gen_atomic_xor_fetch_tl tcg_gen_atomic_xor_fetch_i32
#endif
#if UINTPTR_MAX == UINT32_MAX
diff --git a/tcg/tcg-runtime.h b/tcg/tcg-runtime.h
index 23a0c37..b3accf4 100644
--- a/tcg/tcg-runtime.h
+++ b/tcg/tcg-runtime.h
@@ -14,3 +14,78 @@ DEF_HELPER_FLAGS_2(sar_i64, TCG_CALL_NO_RWG_SE, s64, s64,
s64)
DEF_HELPER_FLAGS_2(mulsh_i64, TCG_CALL_NO_RWG_SE, s64, s64, s64)
DEF_HELPER_FLAGS_2(muluh_i64, TCG_CALL_NO_RWG_SE, i64, i64, i64)
+
+#ifdef CONFIG_USER_ONLY
+
+DEF_HELPER_FLAGS_3(atomic_cmpxchgb, TCG_CALL_NO_WG, i32, tl, i32, i32)
+DEF_HELPER_FLAGS_3(atomic_cmpxchgw_be, TCG_CALL_NO_WG, i32, tl, i32, i32)
+DEF_HELPER_FLAGS_3(atomic_cmpxchgl_be, TCG_CALL_NO_WG, i32, tl, i32, i32)
+DEF_HELPER_FLAGS_3(atomic_cmpxchgq_be, TCG_CALL_NO_WG, i64, tl, i64, i64)
+DEF_HELPER_FLAGS_3(atomic_cmpxchgw_le, TCG_CALL_NO_WG, i32, tl, i32, i32)
+DEF_HELPER_FLAGS_3(atomic_cmpxchgl_le, TCG_CALL_NO_WG, i32, tl, i32, i32)
+DEF_HELPER_FLAGS_3(atomic_cmpxchgq_le, TCG_CALL_NO_WG, i64, tl, i64, i64)
+
+#define GEN_ATOMIC_HELPERS(NAME) \
+ DEF_HELPER_FLAGS_2(glue(glue(atomic_, NAME), b), \
+ TCG_CALL_NO_WG, i32, tl, i32) \
+ DEF_HELPER_FLAGS_2(glue(glue(atomic_, NAME), w_le), \
+ TCG_CALL_NO_WG, i32, tl, i32) \
+ DEF_HELPER_FLAGS_2(glue(glue(atomic_, NAME), w_be), \
+ TCG_CALL_NO_WG, i32, tl, i32) \
+ DEF_HELPER_FLAGS_2(glue(glue(atomic_, NAME), l_le), \
+ TCG_CALL_NO_WG, i32, tl, i32) \
+ DEF_HELPER_FLAGS_2(glue(glue(atomic_, NAME), l_be), \
+ TCG_CALL_NO_WG, i32, tl, i32) \
+ DEF_HELPER_FLAGS_2(glue(glue(atomic_, NAME), q_le), \
+ TCG_CALL_NO_WG, i64, tl, i64) \
+ DEF_HELPER_FLAGS_2(glue(glue(atomic_, NAME), q_be), \
+ TCG_CALL_NO_WG, i64, tl, i64)
+
+#else
+
+DEF_HELPER_FLAGS_5(atomic_cmpxchgb, TCG_CALL_NO_WG, i32, env,
+ tl, i32, i32, i32)
+DEF_HELPER_FLAGS_5(atomic_cmpxchgw_be, TCG_CALL_NO_WG, i32, env,
+ tl, i32, i32, i32)
+DEF_HELPER_FLAGS_5(atomic_cmpxchgl_be, TCG_CALL_NO_WG, i32, env,
+ tl, i32, i32, i32)
+DEF_HELPER_FLAGS_5(atomic_cmpxchgq_be, TCG_CALL_NO_WG, i64, env,
+ tl, i64, i64, i32)
+DEF_HELPER_FLAGS_5(atomic_cmpxchgw_le, TCG_CALL_NO_WG, i32, env,
+ tl, i32, i32, i32)
+DEF_HELPER_FLAGS_5(atomic_cmpxchgl_le, TCG_CALL_NO_WG, i32, env,
+ tl, i32, i32, i32)
+DEF_HELPER_FLAGS_5(atomic_cmpxchgq_le, TCG_CALL_NO_WG, i64, env,
+ tl, i64, i64, i32)
+
+#define GEN_ATOMIC_HELPERS(NAME) \
+ DEF_HELPER_FLAGS_4(glue(glue(atomic_, NAME), b), \
+ TCG_CALL_NO_WG, i32, env, tl, i32, i32) \
+ DEF_HELPER_FLAGS_4(glue(glue(atomic_, NAME), w_le), \
+ TCG_CALL_NO_WG, i32, env, tl, i32, i32) \
+ DEF_HELPER_FLAGS_4(glue(glue(atomic_, NAME), w_be), \
+ TCG_CALL_NO_WG, i32, env, tl, i32, i32) \
+ DEF_HELPER_FLAGS_4(glue(glue(atomic_, NAME), l_le), \
+ TCG_CALL_NO_WG, i32, env, tl, i32, i32) \
+ DEF_HELPER_FLAGS_4(glue(glue(atomic_, NAME), l_be), \
+ TCG_CALL_NO_WG, i32, env, tl, i32, i32) \
+ DEF_HELPER_FLAGS_4(glue(glue(atomic_, NAME), q_le), \
+ TCG_CALL_NO_WG, i64, env, tl, i64, i32) \
+ DEF_HELPER_FLAGS_4(glue(glue(atomic_, NAME), q_be), \
+ TCG_CALL_NO_WG, i64, env, tl, i64, i32)
+
+#endif
+
+GEN_ATOMIC_HELPERS(fetch_add)
+GEN_ATOMIC_HELPERS(fetch_and)
+GEN_ATOMIC_HELPERS(fetch_or)
+GEN_ATOMIC_HELPERS(fetch_xor)
+
+GEN_ATOMIC_HELPERS(add_fetch)
+GEN_ATOMIC_HELPERS(and_fetch)
+GEN_ATOMIC_HELPERS(or_fetch)
+GEN_ATOMIC_HELPERS(xor_fetch)
+
+GEN_ATOMIC_HELPERS(xchg)
+
+#undef GEN_ATOMIC_HELPERS
diff --git a/tcg/tcg.h b/tcg/tcg.h
index ab67537..4e60498 100644
--- a/tcg/tcg.h
+++ b/tcg/tcg.h
@@ -1163,6 +1163,59 @@ uint64_t helper_be_ldq_cmmu(CPUArchState *env,
target_ulong addr,
# define helper_ret_ldq_cmmu helper_le_ldq_cmmu
#endif
+uint8_t helper_atomic_cmpxchgb_mmu(CPUArchState *env, target_ulong addr,
+ uint8_t cmpv, uint8_t newv,
+ TCGMemOpIdx oi, uintptr_t retaddr);
+uint16_t helper_atomic_cmpxchgw_le_mmu(CPUArchState *env, target_ulong addr,
+ uint16_t cmpv, uint16_t newv,
+ TCGMemOpIdx oi, uintptr_t retaddr);
+uint32_t helper_atomic_cmpxchgl_le_mmu(CPUArchState *env, target_ulong addr,
+ uint32_t cmpv, uint32_t newv,
+ TCGMemOpIdx oi, uintptr_t retaddr);
+uint64_t helper_atomic_cmpxchgq_le_mmu(CPUArchState *env, target_ulong addr,
+ uint64_t cmpv, uint64_t newv,
+ TCGMemOpIdx oi, uintptr_t retaddr);
+uint16_t helper_atomic_cmpxchgw_be_mmu(CPUArchState *env, target_ulong addr,
+ uint16_t cmpv, uint16_t newv,
+ TCGMemOpIdx oi, uintptr_t retaddr);
+uint32_t helper_atomic_cmpxchgl_be_mmu(CPUArchState *env, target_ulong addr,
+ uint32_t cmpv, uint32_t newv,
+ TCGMemOpIdx oi, uintptr_t retaddr);
+uint64_t helper_atomic_cmpxchgq_be_mmu(CPUArchState *env, target_ulong addr,
+ uint64_t cmpv, uint64_t newv,
+ TCGMemOpIdx oi, uintptr_t retaddr);
+
+#define GEN_ATOMIC_HELPER(NAME, TYPE, SUFFIX) \
+TYPE helper_atomic_ ## NAME ## SUFFIX ## _mmu \
+ (CPUArchState *env, target_ulong addr, TYPE val, \
+ TCGMemOpIdx oi, uintptr_t retaddr);
+
+#define GEN_ATOMIC_HELPER_ALL(NAME) \
+ GEN_ATOMIC_HELPER(NAME, uint8_t, b) \
+ GEN_ATOMIC_HELPER(NAME, uint16_t, w_le) \
+ GEN_ATOMIC_HELPER(NAME, uint32_t, l_le) \
+ GEN_ATOMIC_HELPER(NAME, uint64_t, q_le) \
+ GEN_ATOMIC_HELPER(NAME, uint16_t, w_be) \
+ GEN_ATOMIC_HELPER(NAME, uint32_t, l_be) \
+ GEN_ATOMIC_HELPER(NAME, uint64_t, q_be)
+
+GEN_ATOMIC_HELPER_ALL(fetch_add)
+GEN_ATOMIC_HELPER_ALL(fetch_sub)
+GEN_ATOMIC_HELPER_ALL(fetch_and)
+GEN_ATOMIC_HELPER_ALL(fetch_or)
+GEN_ATOMIC_HELPER_ALL(fetch_xor)
+
+GEN_ATOMIC_HELPER_ALL(add_fetch)
+GEN_ATOMIC_HELPER_ALL(sub_fetch)
+GEN_ATOMIC_HELPER_ALL(and_fetch)
+GEN_ATOMIC_HELPER_ALL(or_fetch)
+GEN_ATOMIC_HELPER_ALL(xor_fetch)
+
+GEN_ATOMIC_HELPER_ALL(xchg)
+
+#undef GEN_ATOMIC_HELPER_ALL
+#undef GEN_ATOMIC_HELPER
+
#endif /* CONFIG_SOFTMMU */
#endif /* TCG_H */
--
2.5.5
- Re: [Qemu-devel] [PATCH v2 11/27] target-i386: emulate LOCK'ed cmpxchg using cmpxchg helpers, (continued)
- [Qemu-devel] [PATCH v2 06/27] int128: Use complex numbers if advisable, Richard Henderson, 2016/07/01
- [Qemu-devel] [PATCH v2 10/27] tcg: Add atomic128 helpers, Richard Henderson, 2016/07/01
- [Qemu-devel] [PATCH v2 07/27] tcg: Add EXCP_ATOMIC, Richard Henderson, 2016/07/01
- [Qemu-devel] [PATCH v2 13/27] target-i386: emulate LOCK'ed INC using atomic helper, Richard Henderson, 2016/07/01
- [Qemu-devel] [PATCH v2 09/27] tcg: Add atomic helpers,
Richard Henderson <=
- [Qemu-devel] [PATCH v2 15/27] target-i386: emulate LOCK'ed NEG using cmpxchg helper, Richard Henderson, 2016/07/01
- [Qemu-devel] [PATCH v2 16/27] target-i386: emulate LOCK'ed XADD using atomic helper, Richard Henderson, 2016/07/01
- [Qemu-devel] [PATCH v2 12/27] target-i386: emulate LOCK'ed OP instructions using atomic helpers, Richard Henderson, 2016/07/01
- [Qemu-devel] [PATCH v2 14/27] target-i386: emulate LOCK'ed NOT using atomic helper, Richard Henderson, 2016/07/01
- [Qemu-devel] [PATCH v2 18/27] target-i386: emulate XCHG using atomic helper, Richard Henderson, 2016/07/01
- [Qemu-devel] [PATCH v2 19/27] target-i386: remove helper_lock(), Richard Henderson, 2016/07/01
- [Qemu-devel] [PATCH v2 21/27] target-arm: Rearrange aa32 load and store functions, Richard Henderson, 2016/07/01
- [Qemu-devel] [PATCH v2 17/27] target-i386: emulate LOCK'ed BTX ops using atomic helpers, Richard Henderson, 2016/07/01
- [Qemu-devel] [PATCH v2 23/27] target-arm: emulate SWP with atomic_xchg helper, Richard Henderson, 2016/07/01
- [Qemu-devel] [PATCH v2 26/27] linux-user: remove handling of aarch64's EXCP_STREX, Richard Henderson, 2016/07/01