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git://nv-tegra.nvidia.com/linux-nvgpu.git
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3e3ca8a761
Add new unit vgpu subctx under common/vgpu/gr to manage GR subcontext. This unit provides interfaces to allocate and free subctx header. Rename vgpu_subctx_gv11b* files to subctx_vgpu* files renaming functions vgpu_gv11b_alloc_subctx_header to vgpu_alloc_subctx_header and vgpu_gv11b_free_subctx_header to vgpu_free_subctx_header which are called only if NVGPU_SUPPORT_TSG_SUBCONTEXTS is enabled or free_channel_ctx_header HAL op is set which is set only for gv11b for virtualization. Also assign fifo HAL op free_channel_ctx_header to vgpu_channel_free_ctx_header for vgpu gv11b which in turn calls vgpu_free_subctx_header. Jira GVSCI-334 Change-Id: Ib46e7be911632eba01cd21881077683b795f8bad Signed-off-by: Aparna Das <aparnad@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/2075872 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
103 lines
3.1 KiB
C
103 lines
3.1 KiB
C
/*
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* Copyright (c) 2017-2019, NVIDIA CORPORATION. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <nvgpu/vgpu/vgpu.h>
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#include <nvgpu/vgpu/tegra_vgpu.h>
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#include <nvgpu/gk20a.h>
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#include <nvgpu/gr/subctx.h>
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#include "subctx_vgpu.h"
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int vgpu_alloc_subctx_header(struct gk20a *g,
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struct nvgpu_gr_subctx **gr_subctx,
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struct vm_gk20a *vm, u64 virt_ctx)
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{
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struct nvgpu_gr_subctx *subctx;
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struct nvgpu_mem *ctxheader;
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struct tegra_vgpu_cmd_msg msg = {};
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struct tegra_vgpu_alloc_ctx_header_params *p =
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&msg.params.alloc_ctx_header;
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int err;
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subctx = nvgpu_kzalloc(g, sizeof(*subctx));
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if (subctx == NULL) {
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return -ENOMEM;
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}
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ctxheader = &subctx->ctx_header;
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msg.cmd = TEGRA_VGPU_CMD_ALLOC_CTX_HEADER;
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msg.handle = vgpu_get_handle(g);
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p->ch_handle = virt_ctx;
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p->ctx_header_va = nvgpu_vm_alloc_va(vm,
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g->ops.gr.ctxsw_prog.hw_get_fecs_header_size(),
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GMMU_PAGE_SIZE_KERNEL);
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if (p->ctx_header_va == 0U) {
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nvgpu_err(g, "alloc va failed for ctx_header");
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err = -ENOMEM;
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goto fail;
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}
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err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg));
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err = err ? err : msg.ret;
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if (unlikely(err != 0)) {
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nvgpu_err(g, "alloc ctx_header failed err %d", err);
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nvgpu_vm_free_va(vm, p->ctx_header_va,
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GMMU_PAGE_SIZE_KERNEL);
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goto fail;
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}
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ctxheader->gpu_va = p->ctx_header_va;
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*gr_subctx = subctx;
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return 0;
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fail:
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nvgpu_kfree(g, subctx);
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return err;
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}
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void vgpu_free_subctx_header(struct gk20a *g, struct nvgpu_gr_subctx *subctx,
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struct vm_gk20a *vm, u64 virt_ctx)
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{
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struct nvgpu_mem *ctxheader;
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struct tegra_vgpu_cmd_msg msg = {};
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struct tegra_vgpu_free_ctx_header_params *p =
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&msg.params.free_ctx_header;
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int err;
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if (subctx != NULL) {
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ctxheader = &subctx->ctx_header;
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msg.cmd = TEGRA_VGPU_CMD_FREE_CTX_HEADER;
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msg.handle = vgpu_get_handle(g);
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p->ch_handle = virt_ctx;
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err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg));
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err = err ? err : msg.ret;
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if (unlikely(err != 0)) {
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nvgpu_err(g, "free ctx_header failed err %d", err);
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}
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nvgpu_vm_free_va(vm, ctxheader->gpu_va,
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GMMU_PAGE_SIZE_KERNEL);
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ctxheader->gpu_va = 0;
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nvgpu_kfree(g, subctx);
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}
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}
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