From 892e7fb7c254008c195431ae559b2b4f7909c95f Mon Sep 17 00:00:00 2001 From: Alyssa Rosenzweig Date: Wed, 25 May 2022 10:57:50 -0400 Subject: [PATCH] drm/panfrost: Add HW_ISSUE_TTRX_3485 quirk 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. Reviewed-by: Steven Price Signed-off-by: Alyssa Rosenzweig Link: https://patchwork.freedesktop.org/patch/msgid/20220525145754.25866-6-alyssa.rosenzweig@collabora.com --- drivers/gpu/drm/panfrost/panfrost_issues.h | 3 +++ 1 file changed, 3 insertions(+) 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 };