diff options
author | Dave Airlie <airlied@redhat.com> | 2013-08-28 14:27:15 +1000 |
---|---|---|
committer | Dave Airlie <airlied@redhat.com> | 2013-08-28 14:27:15 +1000 |
commit | e906d7bdd3b63ffac8b91f2f05c450775de95ef6 (patch) | |
tree | 014e1f6a07067111d4b3ba94e3f9229a1e70e6d1 /drivers/gpu/drm/msm/msm_ringbuffer.h | |
parent | acb4652703f0a452405a3ab9319594eddc41391b (diff) | |
parent | bd6f82d8289422f618b98451a43887f452b3423e (diff) |
Merge branch 'drm-next' of git://people.freedesktop.org/~robclark/linux into drm-next
Merge the MSM driver from Rob Clark
* 'drm-next' of git://people.freedesktop.org/~robclark/linux:
drm/msm: add basic hangcheck/recovery mechanism
drm/msm: add a3xx gpu support
drm/msm: add register definitions for gpu
drm/msm: basic KMS driver for snapdragon
drm/msm: add register definitions
Diffstat (limited to 'drivers/gpu/drm/msm/msm_ringbuffer.h')
-rw-r--r-- | drivers/gpu/drm/msm/msm_ringbuffer.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_ringbuffer.h b/drivers/gpu/drm/msm/msm_ringbuffer.h new file mode 100644 index 000000000000..6e0e1049fa4f --- /dev/null +++ b/drivers/gpu/drm/msm/msm_ringbuffer.h @@ -0,0 +1,43 @@ +/* + * Copyright (C) 2013 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_RINGBUFFER_H__ +#define __MSM_RINGBUFFER_H__ + +#include "msm_drv.h" + +struct msm_ringbuffer { + struct msm_gpu *gpu; + int size; + struct drm_gem_object *bo; + uint32_t *start, *end, *cur; +}; + +struct msm_ringbuffer *msm_ringbuffer_new(struct msm_gpu *gpu, int size); +void msm_ringbuffer_destroy(struct msm_ringbuffer *ring); + +/* ringbuffer helpers (the parts that are same for a3xx/a2xx/z180..) */ + +static inline void +OUT_RING(struct msm_ringbuffer *ring, uint32_t data) +{ + if (ring->cur == ring->end) + ring->cur = ring->start; + *(ring->cur++) = data; +} + +#endif /* __MSM_RINGBUFFER_H__ */ |