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authorRob Clark <robdclark@chromium.org>2021-11-09 10:11:05 -0800
committerRob Clark <robdclark@chromium.org>2021-11-28 09:56:47 -0800
commit5edf2750d998b7767daffe66c7f7476227df908a (patch)
tree9816f80396920bcee061bd2fe52daa77e3c0b18c /drivers/gpu/drm/msm/msm_debugfs.c
parent5f3aee4ceb5b8607e9a4b752c2547667200e19e2 (diff)
drm/msm: Add debugfs to disable hw err handling
Add a debugfs interface to ignore hw error irqs, in order to force fallback to sw hangcheck mechanism. Because the hw error detection is pretty good on newer gens, we need this for igt tests to test the sw hang detection. Signed-off-by: Rob Clark <robdclark@chromium.org> Reviewed-by: Akhil P Oommen <akhilpo@codeaurora.org> Link: https://lore.kernel.org/r/20211109181117.591148-6-robdclark@gmail.com Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/msm/msm_debugfs.c')
-rw-r--r--drivers/gpu/drm/msm/msm_debugfs.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_debugfs.c b/drivers/gpu/drm/msm/msm_debugfs.c
index 6a99e8b5d25d..956b1efc3721 100644
--- a/drivers/gpu/drm/msm/msm_debugfs.c
+++ b/drivers/gpu/drm/msm/msm_debugfs.c
@@ -242,6 +242,9 @@ void msm_debugfs_init(struct drm_minor *minor)
debugfs_create_u32("hangcheck_period_ms", 0600, minor->debugfs_root,
&priv->hangcheck_period);
+ debugfs_create_bool("disable_err_irq", 0600, minor->debugfs_root,
+ &priv->disable_err_irq);
+
debugfs_create_file("shrink", S_IRWXU, minor->debugfs_root,
dev, &shrink_fops);