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4f40637c58
Replaced all instances of sync_fence in gk20a_fence* code with nvgpu_os_fence. Added the API install_fence for the nvgpu_os_fence abstraction. sync_fence mechanism and its dependencies are completely removed from the fence_gk20a methods. Due to the recent os_fence changes and the changes to fence_gk20a, we can finally get rid of all the CONFIG_SYNCS present in the submit path. JIRA NVGPU-66 Change-Id: I3551dab04b93b1e94db83fc102a41872be89e9ed Signed-off-by: Debarshi Dutta <ddutta@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1701245 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
101 lines
3.0 KiB
C
101 lines
3.0 KiB
C
/*
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* drivers/video/tegra/host/gk20a/fence_gk20a.h
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*
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* GK20A Fences
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*
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* Copyright (c) 2014-2018, 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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#ifndef _GK20A_FENCE_H_
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#define _GK20A_FENCE_H_
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#include <nvgpu/types.h>
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#include <nvgpu/kref.h>
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#include <nvgpu/os_fence.h>
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struct platform_device;
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struct nvgpu_semaphore;
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struct channel_gk20a;
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struct gk20a;
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struct nvgpu_os_fence;
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struct gk20a_fence_ops;
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struct gk20a_fence {
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struct gk20a *g;
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/* Valid for all fence types: */
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bool valid;
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struct nvgpu_ref ref;
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const struct gk20a_fence_ops *ops;
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struct nvgpu_os_fence os_fence;
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/* Valid for fences created from semaphores: */
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struct nvgpu_semaphore *semaphore;
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struct nvgpu_cond *semaphore_wq;
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/* Valid for fences created from syncpoints: */
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struct nvgpu_nvhost_dev *nvhost_dev;
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u32 syncpt_id;
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u32 syncpt_value;
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/* Valid for fences part of a pre-allocated fence pool */
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struct nvgpu_allocator *allocator;
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};
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/* Fences can be created from semaphores or syncpoint (id, value) pairs */
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int gk20a_fence_from_semaphore(
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struct gk20a_fence *fence_out,
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struct nvgpu_semaphore *semaphore,
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struct nvgpu_cond *semaphore_wq,
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struct nvgpu_os_fence os_fence);
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int gk20a_fence_from_syncpt(
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struct gk20a_fence *fence_out,
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struct nvgpu_nvhost_dev *nvhost_dev,
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u32 id, u32 value,
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struct nvgpu_os_fence os_fence);
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int gk20a_alloc_fence_pool(
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struct channel_gk20a *c,
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unsigned int count);
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void gk20a_free_fence_pool(
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struct channel_gk20a *c);
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struct gk20a_fence *gk20a_alloc_fence(
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struct channel_gk20a *c);
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void gk20a_init_fence(struct gk20a_fence *f,
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const struct gk20a_fence_ops *ops,
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struct nvgpu_os_fence os_fence);
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/* Fence operations */
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void gk20a_fence_put(struct gk20a_fence *f);
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struct gk20a_fence *gk20a_fence_get(struct gk20a_fence *f);
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int gk20a_fence_wait(struct gk20a *g, struct gk20a_fence *f,
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unsigned long timeout);
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bool gk20a_fence_is_expired(struct gk20a_fence *f);
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bool gk20a_fence_is_valid(struct gk20a_fence *f);
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int gk20a_fence_install_fd(struct gk20a_fence *f, int fd);
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#endif
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