diff mbox series

[v2,5/9] drm/panfrost: Add HW_ISSUE_TTRX_3485 quirk

Message ID 20220525145754.25866-6-alyssa.rosenzweig@collabora.com (mailing list archive)
State New, archived
Headers show
Series drm/panfrost: Valhall (JM) support | expand

Commit Message

Alyssa Rosenzweig May 25, 2022, 2:57 p.m. UTC 
TTRX_3485 requires the infamous "dummy job" workaround. I have this
workaround implemented in a local branch, but I have not yet hit a case
that requires it so I cannot test whether the implementation is correct.
In the mean time, add the quirk bit so we can document which platforms
may need it in the future.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
---
 drivers/gpu/drm/panfrost/panfrost_issues.h | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/panfrost/panfrost_issues.h b/drivers/gpu/drm/panfrost/panfrost_issues.h
index e35807e4b743..4d41e0a13867 100644
--- a/drivers/gpu/drm/panfrost/panfrost_issues.h
+++ b/drivers/gpu/drm/panfrost/panfrost_issues.h
@@ -132,6 +132,9 @@  enum panfrost_hw_issue {
 	 * to hang */
 	HW_ISSUE_TTRX_3076,
 
+	/* Must issue a dummy job before starting real work to prevent hangs */
+	HW_ISSUE_TTRX_3485,
+
 	HW_ISSUE_END
 };