drm/xe: Make page size consistent in loop

[ Upstream commit b85bb2d677153d990924d31be9416166d22382eb ]

If PAGE_SIZE != XE_PAGE_SIZE (which is currently locked behind
CONFIG_BROKEN), this would generate the wrong number of PDEs.

Since these PDEs are consumed by the GPU, the GPU page size needs to be
used.

Signed-off-by: Simon Richter <Simon.Richter@hogyros.de>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20250818064806.2835-1-Simon.Richter@hogyros.de
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/gpu/drm/xe/xe_migrate.c b/drivers/gpu/drm/xe/xe_migrate.c
index 9b1e3dce1aea35ca6218831b0719e80cf1fa8ce7..2a627ed64b8f88249e05b48728403e4d2341e932 100644 (file)
--- a/drivers/gpu/drm/xe/xe_migrate.c
+++ b/drivers/gpu/drm/xe/xe_migrate.c
@@ -291,7 +291,7 @@ static int xe_migrate_prepare_vm(struct xe_tile *tile, struct xe_migrate *m,
        }
 
        /* Write PDE's that point to our BO. */
-       for (i = 0; i < map_ofs / PAGE_SIZE; i++) {
+       for (i = 0; i < map_ofs / XE_PAGE_SIZE; i++) {
                entry = vm->pt_ops->pde_encode_bo(bo, (u64)i * XE_PAGE_SIZE);
 
                xe_map_wr(xe, &bo->vmap, map_ofs + XE_PAGE_SIZE +