From b42fb7ba26b565f93118fbdd9e17b42ee6144c5e Mon Sep 17 00:00:00 2001 From: Deepak Nibade Date: Tue, 14 Nov 2017 06:43:28 -0800 Subject: gpu: nvgpu: move vgpu code to linux Most of VGPU code is linux specific but lies in common code So until VGPU code is properly abstracted and made os-independent, move all of VGPU code to linux specific directory Handle corresponding Makefile changes Update all #includes to reflect new paths Add GPL license to newly added linux files Jira NVGPU-387 Change-Id: Ic133e4c80e570bcc273f0dacf45283fefd678923 Signed-off-by: Deepak Nibade Reviewed-on: https://git-master.nvidia.com/r/1599472 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom Reviewed-by: mobile promotions Tested-by: mobile promotions --- .../common/linux/vgpu/gv11b/vgpu_subctx_gv11b.c | 73 ++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 drivers/gpu/nvgpu/common/linux/vgpu/gv11b/vgpu_subctx_gv11b.c (limited to 'drivers/gpu/nvgpu/common/linux/vgpu/gv11b/vgpu_subctx_gv11b.c') diff --git a/drivers/gpu/nvgpu/common/linux/vgpu/gv11b/vgpu_subctx_gv11b.c b/drivers/gpu/nvgpu/common/linux/vgpu/gv11b/vgpu_subctx_gv11b.c new file mode 100644 index 00000000..6d8785e4 --- /dev/null +++ b/drivers/gpu/nvgpu/common/linux/vgpu/gv11b/vgpu_subctx_gv11b.c @@ -0,0 +1,73 @@ +/* + * Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope 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 . + */ + +#include "gk20a/gk20a.h" +#include "common/linux/vgpu/vgpu.h" +#include + +int vgpu_gv11b_alloc_subctx_header(struct channel_gk20a *c) +{ + struct ctx_header_desc *ctx = &c->ch_ctx.ctx_header; + struct tegra_vgpu_cmd_msg msg = {}; + struct tegra_vgpu_alloc_ctx_header_params *p = + &msg.params.t19x.alloc_ctx_header; + struct gr_gk20a *gr = &c->g->gr; + int err; + + msg.cmd = TEGRA_VGPU_CMD_ALLOC_CTX_HEADER; + msg.handle = vgpu_get_handle(c->g); + p->ch_handle = c->virt_ctx; + p->ctx_header_va = __nvgpu_vm_alloc_va(c->vm, + gr->ctx_vars.golden_image_size, + gmmu_page_size_kernel); + if (!p->ctx_header_va) { + nvgpu_err(c->g, "alloc va failed for ctx_header"); + return -ENOMEM; + } + err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg)); + err = err ? err : msg.ret; + if (unlikely(err)) { + nvgpu_err(c->g, "alloc ctx_header failed err %d", err); + __nvgpu_vm_free_va(c->vm, p->ctx_header_va, + gmmu_page_size_kernel); + return err; + } + ctx->mem.gpu_va = p->ctx_header_va; + + return err; +} + +void vgpu_gv11b_free_subctx_header(struct channel_gk20a *c) +{ + struct ctx_header_desc *ctx = &c->ch_ctx.ctx_header; + struct tegra_vgpu_cmd_msg msg = {}; + struct tegra_vgpu_free_ctx_header_params *p = + &msg.params.t19x.free_ctx_header; + int err; + + if (ctx->mem.gpu_va) { + msg.cmd = TEGRA_VGPU_CMD_FREE_CTX_HEADER; + msg.handle = vgpu_get_handle(c->g); + p->ch_handle = c->virt_ctx; + err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg)); + err = err ? err : msg.ret; + if (unlikely(err)) + nvgpu_err(c->g, "free ctx_header failed err %d", err); + __nvgpu_vm_free_va(c->vm, ctx->mem.gpu_va, + gmmu_page_size_kernel); + ctx->mem.gpu_va = 0; + } +} -- cgit v1.2.2