diff options
| author |   Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com> | 2023-10-10 11:40:56 +0000 |
|---|---|---|
| committer | Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com> | 2023-10-10 11:40:56 +0000 |
| commit | e02cda008591317b1625707ff8e115a4841aa889 (patch) | |
| tree | aee302e3cf8b59ec2d32ec481be3d1afddfc8968 /target/hexagon/mmvec/system_ext_mmvec.c | |
| parent | cc668e6b7e0ffd8c9d130513d12053cf5eda1d3b (diff) | |
Introduce Virtio-loopback epsilon release:
Epsilon release introduces a new compatibility layer which make virtio-loopback
design to work with QEMU and rust-vmm vhost-user backend without require any
changes.
Signed-off-by: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>
Change-Id: I52e57563e08a7d0bdc002f8e928ee61ba0c53dd9
Diffstat (limited to 'target/hexagon/mmvec/system_ext_mmvec.c')
| -rw-r--r-- | target/hexagon/mmvec/system_ext_mmvec.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/target/hexagon/mmvec/system_ext_mmvec.c b/target/hexagon/mmvec/system_ext_mmvec.c new file mode 100644 index 000000000..8351f2cc0 --- /dev/null +++ b/target/hexagon/mmvec/system_ext_mmvec.c @@ -0,0 +1,47 @@ +/* + * Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +#include "qemu/osdep.h" +#include "cpu.h" +#include "mmvec/system_ext_mmvec.h" + +void mem_gather_store(CPUHexagonState *env, target_ulong vaddr, int slot) +{ + size_t size = sizeof(MMVector); + + env->vstore_pending[slot] = 1; + env->vstore[slot].va = vaddr; + env->vstore[slot].size = size; + memcpy(&env->vstore[slot].data.ub[0], &env->tmp_VRegs[0], size); + + /* On a gather store, overwrite the store mask to emulate dropped gathers */ + bitmap_copy(env->vstore[slot].mask, env->vtcm_log.mask, size); +} + +void mem_vector_scatter_init(CPUHexagonState *env) +{ + bitmap_zero(env->vtcm_log.mask, MAX_VEC_SIZE_BYTES); + + env->vtcm_pending = true; + env->vtcm_log.op = false; + env->vtcm_log.op_size = 0; +} + +void mem_vector_gather_init(CPUHexagonState *env) +{ + bitmap_zero(env->vtcm_log.mask, MAX_VEC_SIZE_BYTES); +} |