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drm/xe/migrate: fix copy direction in access_memory

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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: 270172f64b ("drm/xe: Update xe_ttm_access_memory to use GPU for non-visible access")
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20250710134128.800756-2-matthew.auld@intel.com
(cherry picked from commit c12fe703ca)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
This commit is contained in:
Matthew Auld 2025-07-10 14:41:29 +01:00 committed by Lucas De Marchi
parent fd25fa90ed
commit 1381c231c1
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/xe/xe_migrate.c
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@ -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 {