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drm/xe/gt: Synchronize GT reset with device unbind

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When unbinding wait for any GT reset in progress to complete. Unbinding
will release the mmio mapping but mmio operations are performed during
GT reset causing Kernel panic.

Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patch.msgid.link/20251103123144.3231829-5-balasubramani.vivekanandan@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
This commit is contained in:
Balasubramani Vivekanandan
2025-11-03 18:01:46 +05:30
committed by Lucas De Marchi
parent 1f8a87be9c
commit 09c452d117
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/drm/xe/xe_gt.c
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@@ -607,6 +607,13 @@ static void xe_gt_fini(void *arg)
struct xe_gt *gt = arg;
int i;
if (disable_work_sync(&gt->reset.worker))
/*
* If gt_reset_worker was halted from executing, take care of
* releasing the rpm reference here.
*/
xe_pm_runtime_put(gt_to_xe(gt));
for (i = 0; i < XE_ENGINE_CLASS_MAX; ++i)
xe_hw_fence_irq_finish(&gt->fence_irq[i]);