diff options
| author | Rob Clark <robdclark@chromium.org> | 2021-11-09 21:11:05 +0300 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2021-11-28 20:56:47 +0300 |
| commit | 5edf2750d998b7767daffe66c7f7476227df908a (patch) | |
| tree | 9816f80396920bcee061bd2fe52daa77e3c0b18c /drivers/gpu/drm/msm/msm_drv.h | |
| parent | 5f3aee4ceb5b8607e9a4b752c2547667200e19e2 (diff) | |
| download | linux-5edf2750d998b7767daffe66c7f7476227df908a.tar.xz | |
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_drv.h')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_drv.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index 3f5fcf6d439e..b24bc501c231 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -240,6 +240,15 @@ struct msm_drm_private { /* For hang detection, in ms */ unsigned int hangcheck_period; + + /** + * disable_err_irq: + * + * Disable handling of GPU hw error interrupts, to force fallback to + * sw hangcheck timer. Written (via debugfs) by igt tests to test + * the sw hangcheck mechanism. + */ + bool disable_err_irq; }; struct msm_format { |