diff options
Diffstat (limited to 'drivers/gpu/drm/msm/msm_fence.h')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_fence.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_fence.h b/drivers/gpu/drm/msm/msm_fence.h new file mode 100644 index 000000000..b9fe05909 --- /dev/null +++ b/drivers/gpu/drm/msm/msm_fence.h @@ -0,0 +1,44 @@ +/* + * Copyright (C) 2013-2016 Red Hat + * Author: Rob Clark <robdclark@gmail.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that 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 <http://www.gnu.org/licenses/>. + */ + +#ifndef __MSM_FENCE_H__ +#define __MSM_FENCE_H__ + +#include "msm_drv.h" + +struct msm_fence_context { + struct drm_device *dev; + char name[32]; + unsigned context; + /* last_fence == completed_fence --> no pending work */ + uint32_t last_fence; /* last assigned fence */ + uint32_t completed_fence; /* last completed fence */ + wait_queue_head_t event; + spinlock_t spinlock; +}; + +struct msm_fence_context * msm_fence_context_alloc(struct drm_device *dev, + const char *name); +void msm_fence_context_free(struct msm_fence_context *fctx); + +int msm_wait_fence(struct msm_fence_context *fctx, uint32_t fence, + ktime_t *timeout, bool interruptible); +void msm_update_fence(struct msm_fence_context *fctx, uint32_t fence); + +struct dma_fence * msm_fence_alloc(struct msm_fence_context *fctx); + +#endif |