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git://nv-tegra.nvidia.com/linux-nvgpu.git
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7b8cbd2be3
Greatly simplify and make more robust the gpu semaphore detection in sync_fences. Instead of using a magic number use the parent timeline of sync_pts. This will also work with multi-GPU setups using nvgpu since the timeline ops pointer will be the same across all instances of nvgpu. Bug 1732449 Reviewed-on: http://git-master/r/1203834 (cherry picked from commit 66eeb577eae5d10741fd15f3659e843c70792cd6) Change-Id: I4c6619d70b5531e2676e18d1330724e8f8b9bcb3 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1221042 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
52 lines
1.6 KiB
C
52 lines
1.6 KiB
C
/*
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* drivers/video/tegra/host/gk20a/sync_gk20a.h
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*
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* GK20A Sync Framework Integration
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*
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* Copyright (c) 2014, 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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#ifndef _GK20A_SYNC_H_
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#define _GK20A_SYNC_H_
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#include <linux/types.h>
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#include <linux/version.h>
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struct sync_timeline;
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struct sync_fence;
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struct sync_pt;
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struct gk20a_semaphore;
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struct fence;
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int gk20a_is_sema_backed_sync_fence(struct sync_fence *fence);
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struct gk20a_semaphore *gk20a_sync_fence_get_sema(struct sync_fence *f);
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#ifdef CONFIG_SYNC
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struct sync_timeline *gk20a_sync_timeline_create(const char *fmt, ...);
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void gk20a_sync_timeline_destroy(struct sync_timeline *);
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void gk20a_sync_timeline_signal(struct sync_timeline *);
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struct sync_fence *gk20a_sync_fence_create(struct sync_timeline *,
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struct gk20a_semaphore *,
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struct sync_fence *dependency,
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const char *fmt, ...);
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struct sync_fence *gk20a_sync_fence_fdget(int fd);
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#else
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static inline void gk20a_sync_timeline_destroy(struct sync_timeline *obj) {}
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static inline void gk20a_sync_timeline_signal(struct sync_timeline *obj) {}
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static inline struct sync_fence *gk20a_sync_fence_fdget(int fd)
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{
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return NULL;
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}
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#endif
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#endif
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