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| author | Alex Goins <agoins@nvidia.com> | 2015-11-25 18:43:39 -0800 |
|---|---|---|
| committer | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2015-12-03 16:10:11 +0100 |
| commit | 3c28ff22f6e20cc946cb5a2b77d14862999f7ba0 (patch) | |
| tree | be3cc1ef0f818d20f2aca919504774d72528e7dd /drivers/gpu | |
| parent | fd8e058a27f319d4560529d54bcbf8aec2d72017 (diff) | |
| download | lwn-3c28ff22f6e20cc946cb5a2b77d14862999f7ba0.tar.gz lwn-3c28ff22f6e20cc946cb5a2b77d14862999f7ba0.zip | |
i915: wait for fence in prepare_plane_fb
In intel_prepare_plane_fb, if fb is backed by dma-buf, wait for exclusive
fence
v2: First commit
v3: Remove object_name_lock acquire
Move wait from intel_atomic_commit() to intel_prepare_plane_fb()
v4: Wait only on exclusive fences, interruptible with no timeout
v5: Style tweaks to more closely match rest of file
v6: Properly handle interrupted waits
v7: No change
v8: No change
Link: https://patchwork.kernel.org/patch/7704181/
Signed-off-by: Alex Goins <agoins@nvidia.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 0ad20eccbf62..01aae086b532 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -13690,6 +13690,17 @@ intel_prepare_plane_fb(struct drm_plane *plane, return ret; } + /* For framebuffer backed by dmabuf, wait for fence */ + if (obj && obj->base.dma_buf) { + ret = reservation_object_wait_timeout_rcu(obj->base.dma_buf->resv, + false, true, + MAX_SCHEDULE_TIMEOUT); + if (ret == -ERESTARTSYS) + return ret; + + WARN_ON(ret < 0); + } + if (!obj) { ret = 0; } else if (plane->type == DRM_PLANE_TYPE_CURSOR && |