mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

target/riscv: Inline unit-stride ld/st and corresponding functions for performance

Browse Source 
In the vector unit-stride load/store helper functions. the vext_ldst_us
& vext_ldst_whole functions corresponding most of the execution time.
Inline the functions can avoid the function call overhead to improve the
helper function performance.

Signed-off-by: Max Chou <max.chou@sifive.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20240918171412.150107-8-max.chou@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Max Chou 2024-09-19 01:14:12 +08:00 committed by Alistair Francis
parent e32988789b
commit f8ee6f533d
1 changed files with 11 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
target/riscv/vector_helper.c
View File

@ -153,14 +153,16 @@ typedef void vext_ldst_elem_fn_tlb(CPURISCVState *env, abi_ptr addr,
typedef void vext_ldst_elem_fn_host(void *vd, uint32_t idx, void *host);
#define GEN_VEXT_LD_ELEM(NAME, ETYPE, H, LDSUF) \
static void NAME##_tlb(CPURISCVState *env, abi_ptr addr, \
static inline QEMU_ALWAYS_INLINE \
void NAME##_tlb(CPURISCVState *env, abi_ptr addr, \
uint32_t idx, void *vd, uintptr_t retaddr) \
{ \
ETYPE *cur = ((ETYPE *)vd + H(idx)); \
*cur = cpu_##LDSUF##_data_ra(env, addr, retaddr); \
} \
\
static void NAME##_host(void *vd, uint32_t idx, void *host) \
static inline QEMU_ALWAYS_INLINE \
void NAME##_host(void *vd, uint32_t idx, void *host) \
{ \
ETYPE *cur = ((ETYPE *)vd + H(idx)); \
*cur = (ETYPE)LDSUF##_p(host); \
@ -172,14 +174,16 @@ GEN_VEXT_LD_ELEM(lde_w, uint32_t, H4, ldl)
GEN_VEXT_LD_ELEM(lde_d, uint64_t, H8, ldq)
#define GEN_VEXT_ST_ELEM(NAME, ETYPE, H, STSUF) \
static void NAME##_tlb(CPURISCVState *env, abi_ptr addr, \
static inline QEMU_ALWAYS_INLINE \
void NAME##_tlb(CPURISCVState *env, abi_ptr addr, \
uint32_t idx, void *vd, uintptr_t retaddr) \
{ \
ETYPE data = *((ETYPE *)vd + H(idx)); \
cpu_##STSUF##_data_ra(env, addr, data, retaddr); \
} \
\
static void NAME##_host(void *vd, uint32_t idx, void *host) \
static inline QEMU_ALWAYS_INLINE \
void NAME##_host(void *vd, uint32_t idx, void *host) \
{ \
ETYPE data = *((ETYPE *)vd + H(idx)); \
STSUF##_p(host, data); \
@ -318,7 +322,7 @@ GEN_VEXT_ST_STRIDE(vsse64_v, int64_t, ste_d_tlb)
*/
/* unmasked unit-stride load and store operation */
static void
static inline QEMU_ALWAYS_INLINE void
vext_page_ldst_us(CPURISCVState *env, void *vd, target_ulong addr,
uint32_t elems, uint32_t nf, uint32_t max_elems,
uint32_t log2_esz, bool is_load, int mmu_index,
@ -370,7 +374,7 @@ vext_page_ldst_us(CPURISCVState *env, void *vd, target_ulong addr,
}
}
static void
static inline QEMU_ALWAYS_INLINE void
vext_ldst_us(void *vd, target_ulong base, CPURISCVState *env, uint32_t desc,
vext_ldst_elem_fn_tlb *ldst_tlb,
vext_ldst_elem_fn_host *ldst_host, uint32_t log2_esz,
@ -757,7 +761,7 @@ GEN_VEXT_LDFF(vle64ff_v, int64_t, lde_d_tlb, lde_d_host)
/*
* load and store whole register instructions
*/
static void
static inline QEMU_ALWAYS_INLINE void
vext_ldst_whole(void *vd, target_ulong base, CPURISCVState *env, uint32_t desc,
vext_ldst_elem_fn_tlb *ldst_tlb,
vext_ldst_elem_fn_host *ldst_host, uint32_t log2_esz,