47 lines
1.5 KiB
C
47 lines
1.5 KiB
C
/*
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* Copyright (C) 2013-2016 Red Hat
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* Author: Rob Clark <robdclark@gmail.com>
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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 of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that 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 along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __MSM_FENCE_H__
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#define __MSM_FENCE_H__
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#include "msm_drv.h"
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struct msm_fence_context {
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struct drm_device *dev;
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char name[32];
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unsigned context;
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/* last_fence == completed_fence --> no pending work */
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uint32_t last_fence; /* last assigned fence */
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uint32_t completed_fence; /* last completed fence */
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wait_queue_head_t event;
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spinlock_t spinlock;
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};
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struct msm_fence_context * msm_fence_context_alloc(struct drm_device *dev,
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const char *name);
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void msm_fence_context_free(struct msm_fence_context *fctx);
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int msm_wait_fence(struct msm_fence_context *fctx, uint32_t fence,
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ktime_t *timeout, bool interruptible);
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int msm_queue_fence_cb(struct msm_fence_context *fctx,
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struct msm_fence_cb *cb, uint32_t fence);
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void msm_update_fence(struct msm_fence_context *fctx, uint32_t fence);
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struct dma_fence * msm_fence_alloc(struct msm_fence_context *fctx);
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#endif
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