From 32bcf21f5712fcd872b26ec70ad8987f7db4478f Mon Sep 17 00:00:00 2001 From: Sourab Gupta Date: Fri, 3 Aug 2018 20:01:47 +0530 Subject: gpu: nvgpu: move ce2.c to common code ce2.c is free of all Linux'isms and can be moved to the common code, so that it can be used by other OS'es. VQRM-3705 Change-Id: Id4644a24188e9af2ba5f6875d1b8bc58b4450519 Signed-off-by: Sourab Gupta Reviewed-on: https://git-master.nvidia.com/r/1792100 Reviewed-by: Alex Waterman Reviewed-by: Lakshmanan M Reviewed-by: Konsta Holtta GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom Reviewed-by: mobile promotions Tested-by: mobile promotions --- drivers/gpu/nvgpu/os/linux/ce2.c | 155 --------------------------------------- 1 file changed, 155 deletions(-) delete mode 100644 drivers/gpu/nvgpu/os/linux/ce2.c (limited to 'drivers/gpu/nvgpu/os/linux/ce2.c') diff --git a/drivers/gpu/nvgpu/os/linux/ce2.c b/drivers/gpu/nvgpu/os/linux/ce2.c deleted file mode 100644 index 0b43c0d1..00000000 --- a/drivers/gpu/nvgpu/os/linux/ce2.c +++ /dev/null @@ -1,155 +0,0 @@ -/* - * 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 -#include - -#include - -#include "gk20a/ce2_gk20a.h" -#include "gk20a/gk20a.h" -#include "channel.h" - -static inline int gk20a_get_valid_launch_flags(struct gk20a *g, int launch_flags) -{ - /* there is no local memory available, - don't allow local memory related CE flags */ - if (!g->mm.vidmem.size) { - launch_flags &= ~(NVGPU_CE_SRC_LOCATION_LOCAL_FB | - NVGPU_CE_DST_LOCATION_LOCAL_FB); - } - return launch_flags; -} - -int gk20a_ce_execute_ops(struct gk20a *g, - u32 ce_ctx_id, - u64 src_buf, - u64 dst_buf, - u64 size, - unsigned int payload, - int launch_flags, - int request_operation, - u32 submit_flags, - struct gk20a_fence **gk20a_fence_out) -{ - int ret = -EPERM; - struct gk20a_ce_app *ce_app = &g->ce_app; - struct gk20a_gpu_ctx *ce_ctx, *ce_ctx_save; - bool found = false; - u32 *cmd_buf_cpu_va; - u64 cmd_buf_gpu_va = 0; - u32 methodSize; - u32 cmd_buf_read_offset; - u32 dma_copy_class; - struct nvgpu_gpfifo_entry gpfifo; - struct nvgpu_channel_fence fence = {0, 0}; - struct gk20a_fence *ce_cmd_buf_fence_out = NULL; - - if (!ce_app->initialised ||ce_app->app_state != NVGPU_CE_ACTIVE) - goto end; - - nvgpu_mutex_acquire(&ce_app->app_mutex); - - nvgpu_list_for_each_entry_safe(ce_ctx, ce_ctx_save, - &ce_app->allocated_contexts, gk20a_gpu_ctx, list) { - if (ce_ctx->ctx_id == ce_ctx_id) { - found = true; - break; - } - } - - nvgpu_mutex_release(&ce_app->app_mutex); - - if (!found) { - ret = -EINVAL; - goto end; - } - - if (ce_ctx->gpu_ctx_state != NVGPU_CE_GPU_CTX_ALLOCATED) { - ret = -ENODEV; - goto end; - } - - nvgpu_mutex_acquire(&ce_ctx->gpu_ctx_mutex); - - ce_ctx->cmd_buf_read_queue_offset %= NVGPU_CE_MAX_INFLIGHT_JOBS; - - cmd_buf_read_offset = (ce_ctx->cmd_buf_read_queue_offset * - (NVGPU_CE_MAX_COMMAND_BUFF_BYTES_PER_KICKOFF / sizeof(u32))); - - cmd_buf_cpu_va = (u32 *)ce_ctx->cmd_buf_mem.cpu_va; - - if (ce_ctx->postfences[ce_ctx->cmd_buf_read_queue_offset]) { - struct gk20a_fence **prev_post_fence = - &ce_ctx->postfences[ce_ctx->cmd_buf_read_queue_offset]; - - ret = gk20a_fence_wait(g, *prev_post_fence, - gk20a_get_gr_idle_timeout(g)); - - gk20a_fence_put(*prev_post_fence); - *prev_post_fence = NULL; - if (ret) - goto noop; - } - - cmd_buf_gpu_va = (ce_ctx->cmd_buf_mem.gpu_va + (u64)(cmd_buf_read_offset *sizeof(u32))); - - dma_copy_class = g->ops.get_litter_value(g, GPU_LIT_DMA_COPY_CLASS); - methodSize = gk20a_ce_prepare_submit(src_buf, - dst_buf, - size, - &cmd_buf_cpu_va[cmd_buf_read_offset], - NVGPU_CE_MAX_COMMAND_BUFF_BYTES_PER_KICKOFF, - payload, - gk20a_get_valid_launch_flags(g, launch_flags), - request_operation, - dma_copy_class); - - if (methodSize) { - /* store the element into gpfifo */ - gpfifo.entry0 = - u64_lo32(cmd_buf_gpu_va); - gpfifo.entry1 = - (u64_hi32(cmd_buf_gpu_va) | - pbdma_gp_entry1_length_f(methodSize)); - - /* take always the postfence as it is needed for protecting the ce context */ - submit_flags |= NVGPU_SUBMIT_FLAGS_FENCE_GET; - - nvgpu_smp_wmb(); - - ret = nvgpu_submit_channel_gpfifo_kernel(ce_ctx->ch, &gpfifo, - 1, submit_flags, &fence, &ce_cmd_buf_fence_out); - - if (!ret) { - ce_ctx->postfences[ce_ctx->cmd_buf_read_queue_offset] = - ce_cmd_buf_fence_out; - if (gk20a_fence_out) { - gk20a_fence_get(ce_cmd_buf_fence_out); - *gk20a_fence_out = ce_cmd_buf_fence_out; - } - - /* Next available command buffer queue Index */ - ++ce_ctx->cmd_buf_read_queue_offset; - } - } else { - ret = -ENOMEM; - } -noop: - nvgpu_mutex_release(&ce_ctx->gpu_ctx_mutex); -end: - return ret; -} -- cgit v1.2.2