From: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: "Michał Winiarski" <michal.winiarski@intel.com>,
"Janusz Krzysztofik" <janusz.krzysztofik@linux.intel.com>
Subject: [Intel-gfx] [PATCH] drm/i915: Mark GPU wedging on driver unregister unrecoverable
Date: Wed, 1 Sep 2021 17:14:15 +0200 [thread overview]
Message-ID: <20210901151415.177556-1-janusz.krzysztofik@linux.intel.com> (raw)
GPU wedged flag now set on driver unregister to prevent from further
using the GPU can be then cleared unintentionally when calling
__intel_gt_unset_wedged() still before the flag is finally marked
unrecoverable. We need to have it marked unrecoverable earlier.
Implement that by replacing a call to intel_gt_set_wedged() in
intel_gt_driver_unregister() with intel_gt_set_wedged_on_fini().
With the above in place, intel_gt_set_wedged_on_fini() is now called
twice on driver remove, second time from __intel_gt_disable(). This
seems harmless, while dropping intel_gt_set_wedged_on_fini() from
__intel_gt_disable() proved to break some driver probe error unwind
paths as well as mock selftest exit path.
Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
---
drivers/gpu/drm/i915/gt/intel_gt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index 62d40c986642..173b53cb2b47 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -750,7 +750,7 @@ void intel_gt_driver_unregister(struct intel_gt *gt)
* all in-flight requests so that we can quickly unbind the active
* resources.
*/
- intel_gt_set_wedged(gt);
+ intel_gt_set_wedged_on_fini(gt);
/* Scrub all HW state upon release */
with_intel_runtime_pm(gt->uncore->rpm, wakeref)
--
2.25.1
next reply other threads:[~2021-09-01 15:15 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-01 15:14 Janusz Krzysztofik [this message]
2021-09-01 17:22 ` [Intel-gfx] ✓ Fi.CI.BAT: success for drm/i915: Mark GPU wedging on driver unregister unrecoverable Patchwork
2021-09-01 19:48 ` [Intel-gfx] ✓ Fi.CI.IGT: " Patchwork
2021-09-02 19:56 ` [Intel-gfx] [PATCH] " Daniel Vetter
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