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* [PATCH v2] drm/xe: Drop all mappings for wedged device
@ 2026-03-26 13:28 Raag Jadav
  2026-03-26 14:06 ` ✓ CI.KUnit: success for " Patchwork
                   ` (3 more replies)
  0 siblings, 4 replies; 11+ messages in thread
From: Raag Jadav @ 2026-03-26 13:28 UTC (permalink / raw)
  To: intel-xe
  Cc: matthew.brost, thomas.hellstrom, matthew.auld,
	himal.prasad.ghimiray, matthew.d.roper, Raag Jadav

As per uapi documentation[1], the prerequisite for wedged device is to
drop all memory mappings. Follow it.

[1] Documentation/gpu/drm-uapi.rst

v2: Also drop CPU mappings (Matthew Auld)

Fixes: 7bc00751f877 ("drm/xe: Use device wedged event")
Signed-off-by: Raag Jadav <raag.jadav@intel.com>
---
 drivers/gpu/drm/xe/xe_bo_evict.c | 8 +++++++-
 drivers/gpu/drm/xe/xe_bo_evict.h | 1 +
 drivers/gpu/drm/xe/xe_device.c   | 5 +++++
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/xe/xe_bo_evict.c b/drivers/gpu/drm/xe/xe_bo_evict.c
index 7661fca7f278..f741cda50b2d 100644
--- a/drivers/gpu/drm/xe/xe_bo_evict.c
+++ b/drivers/gpu/drm/xe/xe_bo_evict.c
@@ -270,7 +270,13 @@ int xe_bo_restore_late(struct xe_device *xe)
 	return ret;
 }
 
-static void xe_bo_pci_dev_remove_pinned(struct xe_device *xe)
+/**
+ * xe_bo_pci_dev_remove_pinned() - Unmap external bos
+ * @xe: xe device
+ *
+ * Drop dma mappings of all external pinned bos.
+ */
+void xe_bo_pci_dev_remove_pinned(struct xe_device *xe)
 {
 	struct xe_tile *tile;
 	unsigned int id;
diff --git a/drivers/gpu/drm/xe/xe_bo_evict.h b/drivers/gpu/drm/xe/xe_bo_evict.h
index e8385cb7f5e9..6ce27e272780 100644
--- a/drivers/gpu/drm/xe/xe_bo_evict.h
+++ b/drivers/gpu/drm/xe/xe_bo_evict.h
@@ -15,6 +15,7 @@ void xe_bo_notifier_unprepare_all_pinned(struct xe_device *xe);
 int xe_bo_restore_early(struct xe_device *xe);
 int xe_bo_restore_late(struct xe_device *xe);
 
+void xe_bo_pci_dev_remove_pinned(struct xe_device *xe);
 void xe_bo_pci_dev_remove_all(struct xe_device *xe);
 
 int xe_bo_pinned_init(struct xe_device *xe);
diff --git a/drivers/gpu/drm/xe/xe_device.c b/drivers/gpu/drm/xe/xe_device.c
index b17d4a878686..4c0097f3aefb 100644
--- a/drivers/gpu/drm/xe/xe_device.c
+++ b/drivers/gpu/drm/xe/xe_device.c
@@ -1347,6 +1347,11 @@ void xe_device_declare_wedged(struct xe_device *xe)
 	for_each_gt(gt, xe, id)
 		xe_gt_declare_wedged(gt);
 
+	/* Drop dma mappings of external bos */
+	xe_bo_pci_dev_remove_pinned(xe);
+	/* Drop all CPU mappings pointing to this device */
+	unmap_mapping_range(xe->drm.anon_inode->i_mapping, 0, 0, 1);
+
 	if (xe_device_wedged(xe)) {
 		/*
 		 * XE_WEDGED_MODE_UPON_ANY_HANG_NO_RESET is intended for debugging
-- 
2.43.0


^ permalink raw reply related	[flat|nested] 11+ messages in thread

end of thread, other threads:[~2026-03-30  7:45 UTC | newest]

Thread overview: 11+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2026-03-26 13:28 [PATCH v2] drm/xe: Drop all mappings for wedged device Raag Jadav
2026-03-26 14:06 ` ✓ CI.KUnit: success for " Patchwork
2026-03-26 14:42 ` ✓ Xe.CI.BAT: " Patchwork
2026-03-26 21:19 ` [PATCH v2] " Matthew Brost
2026-03-27 10:18   ` Matthew Auld
2026-03-27 10:41     ` Thomas Hellström
2026-03-27 14:24       ` Raag Jadav
2026-03-27 15:03       ` Matthew Auld
2026-03-30  7:45         ` Thomas Hellström
2026-03-27 19:51     ` Matthew Brost
2026-03-27  4:56 ` ✓ Xe.CI.FULL: success for " Patchwork

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