Commit c12fe703 authored by Matthew Auld's avatar Matthew Auld
Browse files

drm/xe/migrate: fix copy direction in access_memory 



After we do the modification on the host side, ensure we write the
result back to VRAM and not the other way around, otherwise the
modification will be lost if treated like a read.

Fixes: 270172f6 ("drm/xe: Update xe_ttm_access_memory to use GPU for non-visible access")
Signed-off-by: default avatarMatthew Auld <matthew.auld@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: default avatarMatthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20250710134128.800756-2-matthew.auld@intel.com
parent b528e896

drivers/gpu/drm/xe/xe_migrate.c

+1 −1
Original line number Diff line number Diff line
@@ -1848,7 +1848,7 @@ int xe_migrate_access_memory(struct xe_migrate *m, struct xe_bo *bo, 
				err = xe_migrate_access_memory(m, bo,

							       offset & ~XE_CACHELINE_MASK,

							       (void *)ptr,

							       sizeof(bounce), 0);

							       sizeof(bounce), write);

				if (err)

					return err;

			} else {