accel/tcg: Standardize atomic helpers on softmmu api

Reduce the amount of code duplication by always passing
the TCGMemOpIdx argument to helper_atomic_*.  This is not
currently used for user-only, but it's easy to ignore.

Tested-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2021-07-16 15:51:32 -07:00
parent be9568b4e0
commit e28a866438
5 changed files with 82 additions and 143 deletions

View file

@ -52,3 +52,73 @@ void atomic_trace_st_post(CPUArchState *env, target_ulong addr, uint16_t info)
{
qemu_plugin_vcpu_mem_cb(env_cpu(env), addr, info);
}
/*
* Atomic helpers callable from TCG.
* These have a common interface and all defer to cpu_atomic_*
* using the host return address from GETPC().
*/
#define CMPXCHG_HELPER(OP, TYPE) \
TYPE HELPER(atomic_##OP)(CPUArchState *env, target_ulong addr, \
TYPE oldv, TYPE newv, uint32_t oi) \
{ return cpu_atomic_##OP##_mmu(env, addr, oldv, newv, oi, GETPC()); }
CMPXCHG_HELPER(cmpxchgb, uint32_t)
CMPXCHG_HELPER(cmpxchgw_be, uint32_t)
CMPXCHG_HELPER(cmpxchgw_le, uint32_t)
CMPXCHG_HELPER(cmpxchgl_be, uint32_t)
CMPXCHG_HELPER(cmpxchgl_le, uint32_t)
#ifdef CONFIG_ATOMIC64
CMPXCHG_HELPER(cmpxchgq_be, uint64_t)
CMPXCHG_HELPER(cmpxchgq_le, uint64_t)
#endif
#undef CMPXCHG_HELPER
#define ATOMIC_HELPER(OP, TYPE) \
TYPE HELPER(glue(atomic_,OP))(CPUArchState *env, target_ulong addr, \
TYPE val, uint32_t oi) \
{ return glue(glue(cpu_atomic_,OP),_mmu)(env, addr, val, oi, GETPC()); }
#ifdef CONFIG_ATOMIC64
#define GEN_ATOMIC_HELPERS(OP) \
ATOMIC_HELPER(glue(OP,b), uint32_t) \
ATOMIC_HELPER(glue(OP,w_be), uint32_t) \
ATOMIC_HELPER(glue(OP,w_le), uint32_t) \
ATOMIC_HELPER(glue(OP,l_be), uint32_t) \
ATOMIC_HELPER(glue(OP,l_le), uint32_t) \
ATOMIC_HELPER(glue(OP,q_be), uint64_t) \
ATOMIC_HELPER(glue(OP,q_le), uint64_t)
#else
#define GEN_ATOMIC_HELPERS(OP) \
ATOMIC_HELPER(glue(OP,b), uint32_t) \
ATOMIC_HELPER(glue(OP,w_be), uint32_t) \
ATOMIC_HELPER(glue(OP,w_le), uint32_t) \
ATOMIC_HELPER(glue(OP,l_be), uint32_t) \
ATOMIC_HELPER(glue(OP,l_le), uint32_t)
#endif
GEN_ATOMIC_HELPERS(fetch_add)
GEN_ATOMIC_HELPERS(fetch_and)
GEN_ATOMIC_HELPERS(fetch_or)
GEN_ATOMIC_HELPERS(fetch_xor)
GEN_ATOMIC_HELPERS(fetch_smin)
GEN_ATOMIC_HELPERS(fetch_umin)
GEN_ATOMIC_HELPERS(fetch_smax)
GEN_ATOMIC_HELPERS(fetch_umax)
GEN_ATOMIC_HELPERS(add_fetch)
GEN_ATOMIC_HELPERS(and_fetch)
GEN_ATOMIC_HELPERS(or_fetch)
GEN_ATOMIC_HELPERS(xor_fetch)
GEN_ATOMIC_HELPERS(smin_fetch)
GEN_ATOMIC_HELPERS(umin_fetch)
GEN_ATOMIC_HELPERS(smax_fetch)
GEN_ATOMIC_HELPERS(umax_fetch)
GEN_ATOMIC_HELPERS(xchg)
#undef ATOMIC_HELPER
#undef GEN_ATOMIC_HELPERS

View file

@ -2725,38 +2725,6 @@ void cpu_stq_le_data(CPUArchState *env, target_ulong ptr, uint64_t val)
#include "atomic_template.h"
#endif
/* Second set of helpers are directly callable from TCG as helpers. */
#undef EXTRA_ARGS
#undef ATOMIC_NAME
#undef ATOMIC_MMU_LOOKUP_RW
#undef ATOMIC_MMU_LOOKUP_R
#undef ATOMIC_MMU_LOOKUP_W
#define EXTRA_ARGS , TCGMemOpIdx oi
#define ATOMIC_NAME(X) HELPER(glue(glue(atomic_ ## X, SUFFIX), END))
#define ATOMIC_MMU_LOOKUP_RW \
atomic_mmu_lookup(env, addr, oi, DATA_SIZE, PAGE_READ | PAGE_WRITE, GETPC())
#define ATOMIC_MMU_LOOKUP_R \
atomic_mmu_lookup(env, addr, oi, DATA_SIZE, PAGE_READ, GETPC())
#define ATOMIC_MMU_LOOKUP_W \
atomic_mmu_lookup(env, addr, oi, DATA_SIZE, PAGE_WRITE, GETPC())
#define DATA_SIZE 1
#include "atomic_template.h"
#define DATA_SIZE 2
#include "atomic_template.h"
#define DATA_SIZE 4
#include "atomic_template.h"
#ifdef CONFIG_ATOMIC64
#define DATA_SIZE 8
#include "atomic_template.h"
#endif
#undef ATOMIC_MMU_IDX
/* Code access functions. */
static uint64_t full_ldub_code(CPUArchState *env, target_ulong addr,

View file

@ -39,8 +39,6 @@ DEF_HELPER_FLAGS_1(exit_atomic, TCG_CALL_NO_WG, noreturn, env)
DEF_HELPER_FLAGS_3(memset, TCG_CALL_NO_RWG, ptr, ptr, int, ptr)
#endif /* IN_HELPER_PROTO */
#ifdef CONFIG_SOFTMMU
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,
@ -88,50 +86,6 @@ DEF_HELPER_FLAGS_5(atomic_cmpxchgq_le, TCG_CALL_NO_WG,
TCG_CALL_NO_WG, i32, env, tl, i32, i32)
#endif /* CONFIG_ATOMIC64 */
#else
DEF_HELPER_FLAGS_4(atomic_cmpxchgb, TCG_CALL_NO_WG, i32, env, tl, i32, i32)
DEF_HELPER_FLAGS_4(atomic_cmpxchgw_be, TCG_CALL_NO_WG, i32, env, tl, i32, i32)
DEF_HELPER_FLAGS_4(atomic_cmpxchgw_le, TCG_CALL_NO_WG, i32, env, tl, i32, i32)
DEF_HELPER_FLAGS_4(atomic_cmpxchgl_be, TCG_CALL_NO_WG, i32, env, tl, i32, i32)
DEF_HELPER_FLAGS_4(atomic_cmpxchgl_le, TCG_CALL_NO_WG, i32, env, tl, i32, i32)
#ifdef CONFIG_ATOMIC64
DEF_HELPER_FLAGS_4(atomic_cmpxchgq_be, TCG_CALL_NO_WG, i64, env, tl, i64, i64)
DEF_HELPER_FLAGS_4(atomic_cmpxchgq_le, TCG_CALL_NO_WG, i64, env, tl, i64, i64)
#endif
#ifdef CONFIG_ATOMIC64
#define GEN_ATOMIC_HELPERS(NAME) \
DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), b), \
TCG_CALL_NO_WG, i32, env, tl, i32) \
DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), w_le), \
TCG_CALL_NO_WG, i32, env, tl, i32) \
DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), w_be), \
TCG_CALL_NO_WG, i32, env, tl, i32) \
DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), l_le), \
TCG_CALL_NO_WG, i32, env, tl, i32) \
DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), l_be), \
TCG_CALL_NO_WG, i32, env, tl, i32) \
DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), q_le), \
TCG_CALL_NO_WG, i64, env, tl, i64) \
DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), q_be), \
TCG_CALL_NO_WG, i64, env, tl, i64)
#else
#define GEN_ATOMIC_HELPERS(NAME) \
DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), b), \
TCG_CALL_NO_WG, i32, env, tl, i32) \
DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), w_le), \
TCG_CALL_NO_WG, i32, env, tl, i32) \
DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), w_be), \
TCG_CALL_NO_WG, i32, env, tl, i32) \
DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), l_le), \
TCG_CALL_NO_WG, i32, env, tl, i32) \
DEF_HELPER_FLAGS_3(glue(glue(atomic_, NAME), l_be), \
TCG_CALL_NO_WG, i32, env, tl, i32)
#endif /* CONFIG_ATOMIC64 */
#endif /* CONFIG_SOFTMMU */
GEN_ATOMIC_HELPERS(fetch_add)
GEN_ATOMIC_HELPERS(fetch_and)
GEN_ATOMIC_HELPERS(fetch_or)

View file

@ -1269,29 +1269,3 @@ static void *atomic_mmu_lookup(CPUArchState *env, target_ulong addr,
#define DATA_SIZE 16
#include "atomic_template.h"
#endif
/*
* Second set of functions is directly callable from TCG.
*/
#undef EXTRA_ARGS
#undef ATOMIC_NAME
#undef ATOMIC_MMU_DECLS
#define ATOMIC_NAME(X) HELPER(glue(glue(atomic_ ## X, SUFFIX), END))
#define EXTRA_ARGS
#define ATOMIC_MMU_DECLS uintptr_t retaddr = GETPC()
#define DATA_SIZE 1
#include "atomic_template.h"
#define DATA_SIZE 2
#include "atomic_template.h"
#define DATA_SIZE 4
#include "atomic_template.h"
#ifdef CONFIG_ATOMIC64
#define DATA_SIZE 8
#include "atomic_template.h"
#endif