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d0e4dfd6ef
This patch deals with cleanups meant to make things simpler for the upcoming os abstraction patches for the sync framework. This patch causes some substantial changes which are listed out as follows. 1) sync_timeline is moved out of gk20a_fence into struct nvgpu_channel_linux. New function pointers are created to facilitate os independent methods for enabling/disabling timeline and are now named as os_fence_framework. These function pointers are located in the struct os_channel under struct gk20a. 2) construction of the channel_sync require nvgpu_finalize_poweron_linux() to be invoked before invocations to nvgpu_init_mm_ce_context(). Hence, these methods are now moved away from gk20a_finalize_poweron() and invoked after nvgpu_finalize_poweron_linux(). 3) sync_fence creation is now delinked from fence construction and move to the channel_sync_gk20a's channel_incr methods. These sync_fences are mainly associated with post_fences. 4) In case userspace requires the sync_fences to be constructed, we try to obtain an fd before the gk20a_channel_submit_gpfifo() instead of trying to do that later. This is used to avoid potential after effects of duplicate work submission due to failure to obtain an unused fd. JIRA NVGPU-66 Change-Id: I42a3e4e2e692a113b1b36d2b48ab107ae4444dfa Signed-off-by: Debarshi Dutta <ddutta@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1678400 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
98 lines
2.7 KiB
C
98 lines
2.7 KiB
C
/*
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* Copyright (c) 2017-2018, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* 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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#ifndef __NVGPU_CHANNEL_H__
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#define __NVGPU_CHANNEL_H__
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#include <linux/workqueue.h>
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#include <linux/dma-buf.h>
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#include <nvgpu/types.h>
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struct channel_gk20a;
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struct nvgpu_gpfifo;
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struct nvgpu_submit_gpfifo_args;
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struct nvgpu_channel_fence;
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struct gk20a_fence;
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struct fifo_profile_gk20a;
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struct nvgpu_os_linux;
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struct sync_fence;
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struct sync_timeline;
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struct nvgpu_channel_completion_cb {
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/*
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* Signal channel owner via a callback, if set, in job cleanup with
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* schedule_work. Means that something finished on the channel (perhaps
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* more than one job).
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*/
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void (*fn)(struct channel_gk20a *, void *);
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void *user_data;
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/* Make access to the two above atomic */
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struct nvgpu_spinlock lock;
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/* Per-channel async work task, cannot reschedule itself */
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struct work_struct work;
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};
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struct nvgpu_error_notifier {
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struct dma_buf *dmabuf;
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void *vaddr;
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struct nvgpu_notification *notification;
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struct nvgpu_mutex mutex;
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};
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/*
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* This struct contains fence_related data.
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* e.g. sync_timeline for sync_fences.
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*/
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struct nvgpu_os_fence_framework {
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struct sync_timeline *timeline;
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};
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struct nvgpu_channel_linux {
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struct channel_gk20a *ch;
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struct nvgpu_os_fence_framework fence_framework;
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struct nvgpu_channel_completion_cb completion_cb;
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struct nvgpu_error_notifier error_notifier;
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struct dma_buf *cyclestate_buffer_handler;
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};
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u32 nvgpu_submit_gpfifo_user_flags_to_common_flags(u32 user_flags);
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int nvgpu_init_channel_support_linux(struct nvgpu_os_linux *l);
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void nvgpu_remove_channel_support_linux(struct nvgpu_os_linux *l);
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struct channel_gk20a *gk20a_open_new_channel_with_cb(struct gk20a *g,
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void (*update_fn)(struct channel_gk20a *, void *),
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void *update_fn_data,
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int runlist_id,
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bool is_privileged_channel);
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int gk20a_submit_channel_gpfifo(struct channel_gk20a *c,
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struct nvgpu_gpfifo_entry *gpfifo,
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struct nvgpu_submit_gpfifo_args *args,
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u32 num_entries,
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u32 flags,
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struct nvgpu_channel_fence *fence,
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struct gk20a_fence **fence_out,
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bool force_need_sync_fence,
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struct fifo_profile_gk20a *profile);
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#endif /* __NVGPU_CHANNEL_H__ */
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