drm/radeon: fix radeon_move_blit on 32bit systems

[ Upstream commit 13f479b9df4e2bbf2d16e7e1b02f3f55f70e2455 ]

This bug seems to be present for a very long time.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>

diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index fdea9d07cca7806a88f82b89e155cf4c7e957f54..f361af72c5481f7ee48d473e1ad39c80f6ffa78f 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -240,8 +240,8 @@ static int radeon_move_blit(struct ttm_buffer_object *bo,
 
        rdev = radeon_get_rdev(bo->bdev);
        ridx = radeon_copy_ring_index(rdev);
-       old_start = old_mem->start << PAGE_SHIFT;
-       new_start = new_mem->start << PAGE_SHIFT;
+       old_start = (u64)old_mem->start << PAGE_SHIFT;
+       new_start = (u64)new_mem->start << PAGE_SHIFT;
 
        switch (old_mem->mem_type) {
        case TTM_PL_VRAM: