diff options
| author | Rob Clark | 2014-02-06 19:19:20 -0500 |
|---|---|---|
| committer | Rob Clark | 2014-02-07 10:26:25 -0500 |
| commit | c2703b13a63da335053a2f3cb560bb806bdda0ae (patch) | |
| tree | d7f4bfd1dac7d4c0a71b6823e2e29365a73fb2cb | |
| parent | 9999f105e76977d97304d7cb2030a52d96800d69 (diff) | |
drm/msm: bigger synchronization hammer
Because we use a list_head in the bo to track it's position in a submit,
we need to serialize at a higher layer. Otherwise there are problems
when multiple contexts are SUBMIT'ing in parallel cmdstreams referencing
a shared bo.
Signed-off-by: Rob Clark <robdclark@gmail.com>
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem_submit.c | 9 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gpu.c | 3 |
2 files changed, 5 insertions, 7 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c index 5281d4bc37f7..5423e914e491 100644 --- a/drivers/gpu/drm/msm/msm_gem_submit.c +++ b/drivers/gpu/drm/msm/msm_gem_submit.c @@ -163,7 +163,7 @@ retry: /* if locking succeeded, pin bo: */ - ret = msm_gem_get_iova(&msm_obj->base, + ret = msm_gem_get_iova_locked(&msm_obj->base, submit->gpu->id, &iova); /* this would break the logic in the fail path.. there is no @@ -247,7 +247,7 @@ static int submit_reloc(struct msm_gem_submit *submit, struct msm_gem_object *ob /* For now, just map the entire thing. Eventually we probably * to do it page-by-page, w/ kmap() if not vmap()d.. */ - ptr = msm_gem_vaddr(&obj->base); + ptr = msm_gem_vaddr_locked(&obj->base); if (IS_ERR(ptr)) { ret = PTR_ERR(ptr); @@ -307,14 +307,12 @@ static void submit_cleanup(struct msm_gem_submit *submit, bool fail) { unsigned i; - mutex_lock(&submit->dev->struct_mutex); for (i = 0; i < submit->nr_bos; i++) { struct msm_gem_object *msm_obj = submit->bos[i].obj; submit_unlock_unpin_bo(submit, i); list_del_init(&msm_obj->submit_entry); drm_gem_object_unreference(&msm_obj->base); } - mutex_unlock(&submit->dev->struct_mutex); ww_acquire_fini(&submit->ticket); kfree(submit); @@ -342,6 +340,8 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data, if (args->nr_cmds > MAX_CMDS) return -EINVAL; + mutex_lock(&dev->struct_mutex); + submit = submit_create(dev, gpu, args->nr_bos); if (!submit) { ret = -ENOMEM; @@ -410,5 +410,6 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data, out: if (submit) submit_cleanup(submit, !!ret); + mutex_unlock(&dev->struct_mutex); return ret; } diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c index 4ebce8be489d..0cfe3f426ee4 100644 --- a/drivers/gpu/drm/msm/msm_gpu.c +++ b/drivers/gpu/drm/msm/msm_gpu.c @@ -298,8 +298,6 @@ int msm_gpu_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit, struct msm_drm_private *priv = dev->dev_private; int i, ret; - mutex_lock(&dev->struct_mutex); - submit->fence = ++priv->next_fence; gpu->submitted_fence = submit->fence; @@ -331,7 +329,6 @@ int msm_gpu_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit, msm_gem_move_to_active(&msm_obj->base, gpu, true, submit->fence); } hangcheck_timer_reset(gpu); - mutex_unlock(&dev->struct_mutex); return ret; } |