diff options
| author | Frank Chang <frank.chang@sifive.com> | 2021-12-10 15:56:59 +0800 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2021-12-20 14:53:31 +1000 |
| commit | 5c89e9c0966dd423207bc477fcda9eb454d4308f (patch) | |
| tree | db5eb630e1f75cdecf433b24838c9dabc6fcdbd2 /target | |
| parent | 34a2c2d81ad94ff910051b8b93b4aaff895cec88 (diff) | |
| download | qemu-5c89e9c0966dd423207bc477fcda9eb454d4308f.zip | |
target/riscv: rvv-1.0: add evl parameter to vext_ldst_us()
Add supports of Vector unit-stride mask load/store instructions
(vlm.v, vsm.v), which has:
evl (effective vector length) = ceil(env->vl / 8).
The new instructions operate the same as unmasked byte loads and stores.
Add evl parameter to reuse vext_ldst_us().
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211210075704.23951-74-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'target')
| -rw-r--r-- | target/riscv/vector_helper.c | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index 946dca53ff..83373ca6fc 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -279,15 +279,15 @@ GEN_VEXT_ST_STRIDE(vsse64_v, int64_t, ste_d) /* unmasked unit-stride load and store operation*/ static void vext_ldst_us(void *vd, target_ulong base, CPURISCVState *env, uint32_t desc, - vext_ldst_elem_fn *ldst_elem, - uint32_t esz, uintptr_t ra, MMUAccessType access_type) + vext_ldst_elem_fn *ldst_elem, uint32_t esz, uint32_t evl, + uintptr_t ra, MMUAccessType access_type) { uint32_t i, k; uint32_t nf = vext_nf(desc); uint32_t max_elems = vext_max_elems(desc, esz); /* load bytes from guest memory */ - for (i = env->vstart; i < env->vl; i++, env->vstart++) { + for (i = env->vstart; i < evl; i++, env->vstart++) { k = 0; while (k < nf) { target_ulong addr = base + ((i * nf + k) << esz); @@ -316,7 +316,7 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong base, \ CPURISCVState *env, uint32_t desc) \ { \ vext_ldst_us(vd, base, env, desc, LOAD_FN, \ - ctzl(sizeof(ETYPE)), GETPC(), MMU_DATA_LOAD); \ + ctzl(sizeof(ETYPE)), env->vl, GETPC(), MMU_DATA_LOAD); \ } GEN_VEXT_LD_US(vle8_v, int8_t, lde_b) @@ -324,20 +324,20 @@ GEN_VEXT_LD_US(vle16_v, int16_t, lde_h) GEN_VEXT_LD_US(vle32_v, int32_t, lde_w) GEN_VEXT_LD_US(vle64_v, int64_t, lde_d) -#define GEN_VEXT_ST_US(NAME, ETYPE, STORE_FN) \ -void HELPER(NAME##_mask)(void *vd, void *v0, target_ulong base, \ - CPURISCVState *env, uint32_t desc) \ -{ \ - uint32_t stride = vext_nf(desc) << ctzl(sizeof(ETYPE)); \ - vext_ldst_stride(vd, v0, base, stride, env, desc, false, STORE_FN, \ - ctzl(sizeof(ETYPE)), GETPC(), MMU_DATA_STORE); \ -} \ - \ -void HELPER(NAME)(void *vd, void *v0, target_ulong base, \ - CPURISCVState *env, uint32_t desc) \ -{ \ - vext_ldst_us(vd, base, env, desc, STORE_FN, \ - ctzl(sizeof(ETYPE)), GETPC(), MMU_DATA_STORE); \ +#define GEN_VEXT_ST_US(NAME, ETYPE, STORE_FN) \ +void HELPER(NAME##_mask)(void *vd, void *v0, target_ulong base, \ + CPURISCVState *env, uint32_t desc) \ +{ \ + uint32_t stride = vext_nf(desc) << ctzl(sizeof(ETYPE)); \ + vext_ldst_stride(vd, v0, base, stride, env, desc, false, STORE_FN, \ + ctzl(sizeof(ETYPE)), GETPC(), MMU_DATA_STORE); \ +} \ + \ +void HELPER(NAME)(void *vd, void *v0, target_ulong base, \ + CPURISCVState *env, uint32_t desc) \ +{ \ + vext_ldst_us(vd, base, env, desc, STORE_FN, \ + ctzl(sizeof(ETYPE)), env->vl, GETPC(), MMU_DATA_STORE); \ } GEN_VEXT_ST_US(vse8_v, int8_t, ste_b) |