diff options
| author | Jordan Crouse <jcrouse@codeaurora.org> | 2017-10-20 11:06:57 -0600 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2017-10-28 11:01:36 -0400 |
| commit | f97decac5f4c2d862e5b848694e3ffb29fc8acdd (patch) | |
| tree | 1967285c12465308cd47769a43326db9506ca0d8 /drivers/gpu/drm/msm/msm_gem.h | |
| parent | cd414f3d931687eb1ebeb87533d85537e315f195 (diff) | |
drm/msm: Support multiple ringbuffers
Add the infrastructure to support the idea of multiple ringbuffers.
Assign each ringbuffer an id and use that as an index for the various
ring specific operations.
The biggest delta is to support legacy fences. Each fence gets its own
sequence number but the legacy functions expect to use a unique integer.
To handle this we return a unique identifier for each submission but
map it to a specific ring/sequence under the covers. Newer users use
a dma_fence pointer anyway so they don't care about the actual sequence
ID or ring.
The actual mechanics for multiple ringbuffers are very target specific
so this code just allows for the possibility but still only defines
one ringbuffer for each target family.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gem.h')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem.h b/drivers/gpu/drm/msm/msm_gem.h index 17f8a6c23464..9320e184b48d 100644 --- a/drivers/gpu/drm/msm/msm_gem.h +++ b/drivers/gpu/drm/msm/msm_gem.h @@ -138,13 +138,15 @@ void msm_gem_vunmap(struct drm_gem_object *obj, enum msm_gem_lock subclass); struct msm_gem_submit { struct drm_device *dev; struct msm_gpu *gpu; - struct list_head node; /* node in gpu submit_list */ + struct list_head node; /* node in ring submit list */ struct list_head bo_list; struct ww_acquire_ctx ticket; + uint32_t seqno; /* Sequence number of the submit on the ring */ struct dma_fence *fence; struct msm_gpu_submitqueue *queue; struct pid *pid; /* submitting process */ bool valid; /* true if no cmdstream patching needed */ + struct msm_ringbuffer *ring; unsigned int nr_cmds; unsigned int nr_bos; struct { |