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authorDave Airlie <airlied@redhat.com>2017-06-16 05:58:27 +0200
committerDave Airlie <airlied@redhat.com>2017-06-16 05:58:27 +0200
commit925344ccc91d7a7fd84cab2dece1c34bbd86fd8c (patch)
treebd4110dc5a3b70a5674b9d6d5340cc1889f5d6e8 /drivers/gpu/drm/i915/intel_uc.h
parentMerge tag 'imx-drm-next-2017-06-08' of git://git.pengutronix.de/git/pza/linux... (diff)
parentLinux 4.12-rc5 (diff)
downloadlinux-925344ccc91d7a7fd84cab2dece1c34bbd86fd8c.tar.xz
linux-925344ccc91d7a7fd84cab2dece1c34bbd86fd8c.zip
BackMerge tag 'v4.12-rc5' into drm-next
Linux 4.12-rc5 for nouveau fixes
Diffstat (limited to 'drivers/gpu/drm/i915/intel_uc.h')
-rw-r--r--drivers/gpu/drm/i915/intel_uc.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h
index 69daf4c01cd0..22ae52b17b0f 100644
--- a/drivers/gpu/drm/i915/intel_uc.h
+++ b/drivers/gpu/drm/i915/intel_uc.h
@@ -59,6 +59,10 @@ struct drm_i915_gem_request;
* available in the work queue (note, the queue is shared,
* not per-engine). It is OK for this to be nonzero, but
* it should not be huge!
+ * b_fail: failed to ring the doorbell. This should never happen, unless
+ * somehow the hardware misbehaves, or maybe if the GuC firmware
+ * crashes? We probably need to reset the GPU to recover.
+ * retcode: errno from last guc_submit()
*/
struct i915_guc_client {
struct i915_vma *vma;