82f8b3dce2
Functions to support scatter/gather Add new file to target/hexagon/meson.build Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
/*
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* Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qemu/osdep.h"
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#include "cpu.h"
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#include "mmvec/system_ext_mmvec.h"
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void mem_gather_store(CPUHexagonState *env, target_ulong vaddr, int slot)
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{
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size_t size = sizeof(MMVector);
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env->vstore_pending[slot] = 1;
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env->vstore[slot].va = vaddr;
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env->vstore[slot].size = size;
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memcpy(&env->vstore[slot].data.ub[0], &env->tmp_VRegs[0], size);
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/* On a gather store, overwrite the store mask to emulate dropped gathers */
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bitmap_copy(env->vstore[slot].mask, env->vtcm_log.mask, size);
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}
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void mem_vector_scatter_init(CPUHexagonState *env)
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{
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bitmap_zero(env->vtcm_log.mask, MAX_VEC_SIZE_BYTES);
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env->vtcm_pending = true;
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env->vtcm_log.op = false;
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env->vtcm_log.op_size = 0;
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}
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void mem_vector_gather_init(CPUHexagonState *env)
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{
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bitmap_zero(env->vtcm_log.mask, MAX_VEC_SIZE_BYTES);
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}
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