drm/xe: Use non-interruptible wait when moving BO to system

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From: Nirmoy Das <nirmoy.das@xxxxxxxxx>

commit 528cef1b4170f328d28d4e9b437380d8e5a2d18f upstream.

Ensure a non-interruptible wait is used when moving a bo to
XE_PL_SYSTEM. This prevents dma_mappings from being removed prematurely
while a GPU job is still in progress, even if the CPU receives a
signal during the operation.

Fixes: 75521e8b56e8 ("drm/xe: Perform dma_map when moving system buffer objects to TT")
Cc: Thomas Hellström <thomas.hellstrom@xxxxxxxxxxxxxxx>
Cc: Matthew Brost <matthew.brost@xxxxxxxxx>
Cc: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx # v6.11+
Suggested-by: Matthew Auld <matthew.auld@xxxxxxxxx>
Reviewed-by: Matthew Auld <matthew.auld@xxxxxxxxx>
Reviewed-by: Thomas Hellström <thomas.hellstrom@xxxxxxxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20241213122415.3880017-1-nirmoy.das@xxxxxxxxx
Signed-off-by: Nirmoy Das <nirmoy.das@xxxxxxxxx>
(cherry picked from commit dc5e20ae1f8a7c354dc9833faa2720254e5a5443)
Signed-off-by: Thomas Hellström <thomas.hellstrom@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/xe/xe_bo.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/xe/xe_bo.c
+++ b/drivers/gpu/drm/xe/xe_bo.c
@@ -722,7 +722,7 @@ static int xe_bo_move(struct ttm_buffer_
 	    new_mem->mem_type == XE_PL_SYSTEM) {
 		long timeout = dma_resv_wait_timeout(ttm_bo->base.resv,
 						     DMA_RESV_USAGE_BOOKKEEP,
-						     true,
+						     false,
 						     MAX_SCHEDULE_TIMEOUT);
 		if (timeout < 0) {
 			ret = timeout;


Patches currently in stable-queue which might be from nirmoy.das@xxxxxxxxx are

queue-6.12/drm-xe-wait-for-migration-job-before-unmapping-pages.patch
queue-6.12/drm-xe-use-non-interruptible-wait-when-moving-bo-to-system.patch




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