Functions to support scatter/gather Add new file to target/hexagon/meson.build
Reviewed-by: Richard Henderson <richard.hender...@linaro.org> Signed-off-by: Taylor Simpson <tsimp...@quicinc.com> --- target/hexagon/mmvec/system_ext_mmvec.h | 25 ++++++++++++++++++ target/hexagon/mmvec/system_ext_mmvec.c | 47 +++++++++++++++++++++++++++++++++ target/hexagon/meson.build | 1 + 3 files changed, 73 insertions(+) create mode 100644 target/hexagon/mmvec/system_ext_mmvec.h create mode 100644 target/hexagon/mmvec/system_ext_mmvec.c diff --git a/target/hexagon/mmvec/system_ext_mmvec.h b/target/hexagon/mmvec/system_ext_mmvec.h new file mode 100644 index 0000000..bcefbff --- /dev/null +++ b/target/hexagon/mmvec/system_ext_mmvec.h @@ -0,0 +1,25 @@ +/* + * 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/>. + */ + +#ifndef HEXAGON_SYSTEM_EXT_MMVEC_H +#define HEXAGON_SYSTEM_EXT_MMVEC_H + +void mem_gather_store(CPUHexagonState *env, target_ulong vaddr, int slot); +void mem_vector_scatter_init(CPUHexagonState *env); +void mem_vector_gather_init(CPUHexagonState *env); + +#endif diff --git a/target/hexagon/mmvec/system_ext_mmvec.c b/target/hexagon/mmvec/system_ext_mmvec.c new file mode 100644 index 0000000..8351f2c --- /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); +} diff --git a/target/hexagon/meson.build b/target/hexagon/meson.build index c6d858f..0bfaa41 100644 --- a/target/hexagon/meson.build +++ b/target/hexagon/meson.build @@ -174,6 +174,7 @@ hexagon_ss.add(files( 'printinsn.c', 'arch.c', 'fma_emu.c', + 'mmvec/system_ext_mmvec.c', )) target_arch += {'hexagon': hexagon_ss} -- 2.7.4
