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authorMatthew Auld <matthew.auld@intel.com>2025-07-10 14:41:29 +0100
committerMatthew Auld <matthew.auld@intel.com>2025-07-11 16:33:29 +0100
commitc12fe703cab93f9d8bfe0ff32b58e7b1fd52be1f (patch)
tree96ac777a290626e8ba734be85072d563c6c67a35
parentb528e896fa570844d654b5a4617a97fa770a1030 (diff)
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: 270172f64b11 ("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
-rw-r--r--drivers/gpu/drm/xe/xe_migrate.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/xe/xe_migrate.c b/drivers/gpu/drm/xe/xe_migrate.c
index 4e2bdf70eb70..2adf95d35c31 100644
--- a/drivers/gpu/drm/xe/xe_migrate.c
+++ b/drivers/gpu/drm/xe/xe_migrate.c
@@ -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 {