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| author | Frank Chang <frank.chang@sifive.com> | 2021-12-10 15:56:10 +0800 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2021-12-20 14:51:36 +1000 |
| commit | 30206bd8421d6ca17ba762ec18b039b12fcf6c9d (patch) | |
| tree | 482c19a8f46dfbd970d3dd66d5d7d8f2f51f2150 /target/riscv/vector_helper.c | |
| parent | d3e5e2ff4fefde240120afaf86b032de19b0c722 (diff) | |
| download | qemu-30206bd8421d6ca17ba762ec18b039b12fcf6c9d.zip qemu-30206bd8421d6ca17ba762ec18b039b12fcf6c9d.tar.gz qemu-30206bd8421d6ca17ba762ec18b039b12fcf6c9d.tar.bz2 | |
target/riscv: rvv-1.0: load/store whole register instructions
Add the following instructions:
* vl<nf>re<eew>.v
* vs<nf>r.v
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20211210075704.23951-25-frank.chang@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'target/riscv/vector_helper.c')
| -rw-r--r-- | target/riscv/vector_helper.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index 0e7bf5d..9a39a0e 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -544,6 +544,71 @@ GEN_VEXT_LDFF(vle64ff_v, int64_t, lde_d) #define DO_MINU(N, M) DO_MIN((UMTYPE)N, (UMTYPE)M) /* + *** load and store whole register instructions + */ +static void +vext_ldst_whole(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) +{ + uint32_t i, k; + uint32_t nf = vext_nf(desc); + uint32_t vlenb = env_archcpu(env)->cfg.vlen >> 3; + uint32_t max_elems = vlenb >> esz; + + /* probe every access */ + probe_pages(env, base, vlenb * nf, ra, access_type); + + /* load bytes from guest memory */ + for (k = 0; k < nf; k++) { + for (i = 0; i < max_elems; i++) { + target_ulong addr = base + ((i + k * max_elems) << esz); + ldst_elem(env, addr, i + k * max_elems, vd, ra); + } + } +} + +#define GEN_VEXT_LD_WHOLE(NAME, ETYPE, LOAD_FN) \ +void HELPER(NAME)(void *vd, target_ulong base, \ + CPURISCVState *env, uint32_t desc) \ +{ \ + vext_ldst_whole(vd, base, env, desc, LOAD_FN, \ + ctzl(sizeof(ETYPE)), GETPC(), \ + MMU_DATA_LOAD); \ +} + +GEN_VEXT_LD_WHOLE(vl1re8_v, int8_t, lde_b) +GEN_VEXT_LD_WHOLE(vl1re16_v, int16_t, lde_h) +GEN_VEXT_LD_WHOLE(vl1re32_v, int32_t, lde_w) +GEN_VEXT_LD_WHOLE(vl1re64_v, int64_t, lde_d) +GEN_VEXT_LD_WHOLE(vl2re8_v, int8_t, lde_b) +GEN_VEXT_LD_WHOLE(vl2re16_v, int16_t, lde_h) +GEN_VEXT_LD_WHOLE(vl2re32_v, int32_t, lde_w) +GEN_VEXT_LD_WHOLE(vl2re64_v, int64_t, lde_d) +GEN_VEXT_LD_WHOLE(vl4re8_v, int8_t, lde_b) +GEN_VEXT_LD_WHOLE(vl4re16_v, int16_t, lde_h) +GEN_VEXT_LD_WHOLE(vl4re32_v, int32_t, lde_w) +GEN_VEXT_LD_WHOLE(vl4re64_v, int64_t, lde_d) +GEN_VEXT_LD_WHOLE(vl8re8_v, int8_t, lde_b) +GEN_VEXT_LD_WHOLE(vl8re16_v, int16_t, lde_h) +GEN_VEXT_LD_WHOLE(vl8re32_v, int32_t, lde_w) +GEN_VEXT_LD_WHOLE(vl8re64_v, int64_t, lde_d) + +#define GEN_VEXT_ST_WHOLE(NAME, ETYPE, STORE_FN) \ +void HELPER(NAME)(void *vd, target_ulong base, \ + CPURISCVState *env, uint32_t desc) \ +{ \ + vext_ldst_whole(vd, base, env, desc, STORE_FN, \ + ctzl(sizeof(ETYPE)), GETPC(), \ + MMU_DATA_STORE); \ +} + +GEN_VEXT_ST_WHOLE(vs1r_v, int8_t, ste_b) +GEN_VEXT_ST_WHOLE(vs2r_v, int8_t, ste_b) +GEN_VEXT_ST_WHOLE(vs4r_v, int8_t, ste_b) +GEN_VEXT_ST_WHOLE(vs8r_v, int8_t, ste_b) + +/* *** Vector Integer Arithmetic Instructions */ |