diff options
| author | Jordan Crouse <jcrouse@codeaurora.org> | 2017-10-20 20:06:57 +0300 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2017-10-28 18:01:36 +0300 |
| commit | f97decac5f4c2d862e5b848694e3ffb29fc8acdd (patch) | |
| tree | 1967285c12465308cd47769a43326db9506ca0d8 /drivers/gpu/drm/msm/msm_gem_submit.c | |
| parent | cd414f3d931687eb1ebeb87533d85537e315f195 (diff) | |
| download | linux-f97decac5f4c2d862e5b848694e3ffb29fc8acdd.tar.xz | |
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_submit.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem_submit.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c index c196cc615e77..d3551aa130fb 100644 --- a/drivers/gpu/drm/msm/msm_gem_submit.c +++ b/drivers/gpu/drm/msm/msm_gem_submit.c @@ -51,6 +51,7 @@ static struct msm_gem_submit *submit_create(struct drm_device *dev, submit->pid = get_pid(task_pid(current)); submit->cmd = (void *)&submit->bos[nr_bos]; submit->queue = queue; + submit->ring = gpu->rb[queue->prio]; /* initially, until copy_from_user() and bo lookup succeeds: */ submit->nr_bos = 0; @@ -247,7 +248,8 @@ static int submit_fence_sync(struct msm_gem_submit *submit, bool no_implicit) if (no_implicit) continue; - ret = msm_gem_sync_object(&msm_obj->base, submit->gpu->fctx, write); + ret = msm_gem_sync_object(&msm_obj->base, submit->ring->fctx, + write); if (ret) break; } @@ -410,6 +412,7 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data, struct dma_fence *in_fence = NULL; struct sync_file *sync_file = NULL; struct msm_gpu_submitqueue *queue; + struct msm_ringbuffer *ring; int out_fence_fd = -1; unsigned i; int ret; @@ -430,6 +433,8 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data, if (!queue) return -ENOENT; + ring = gpu->rb[queue->prio]; + if (args->flags & MSM_SUBMIT_FENCE_FD_IN) { in_fence = sync_file_get_fence(args->fence_fd); @@ -440,7 +445,7 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data, * Wait if the fence is from a foreign context, or if the fence * array contains any fence from a foreign context. */ - if (!dma_fence_match_context(in_fence, gpu->fctx->context)) { + if (!dma_fence_match_context(in_fence, ring->fctx->context)) { ret = dma_fence_wait(in_fence, true); if (ret) return ret; @@ -543,8 +548,7 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data, submit->nr_cmds = i; - submit->fence = msm_fence_alloc(gpu->fctx); - + submit->fence = msm_fence_alloc(ring->fctx); if (IS_ERR(submit->fence)) { ret = PTR_ERR(submit->fence); submit->fence = NULL; |