drm/xe: Do not wake device during a GT reset

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commit b3fbda1a63 upstream.

Waking the device during a GT reset can lead to unintended memory
allocation, which is not allowed since GT resets occur in the reclaim
path. Prevent this by holding a PM reference while a reset is in flight.

Fixes: dd08ebf6c3 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Cc: stable@vger.kernel.org
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://lore.kernel.org/r/20251022005538.828980-3-matthew.brost@intel.com
(cherry picked from commit 480b358e7d)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Matthew Brost 2025-10-21 17:55:37 -07:00 • committed by Greg Kroah-Hartman

parent 1e7eaf55ae

commit c977473be4

1 changed files with 12 additions and 7 deletions

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drivers/gpu/drm/xe/xe_gt.c

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