drm/radeon: fix page directory update size estimation
authorChristian König <christian.koenig@amd.com>
Mon, 12 May 2014 12:46:11 +0000 (14:46 +0200)
committerChristian König <christian.koenig@amd.com>
Tue, 20 May 2014 12:42:01 +0000 (14:42 +0200)
Take padding into account as well.

Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=75651
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/radeon/radeon_vm.c

index 2aae6ce49d3286888ea22347b60d71cc5220eef4..d9ab99f47612743bb41361a8cca8114999e52fca 100644 (file)
@@ -595,7 +595,7 @@ int radeon_vm_update_page_directory(struct radeon_device *rdev,
        ndw = 64;
 
        /* assume the worst case */
-       ndw += vm->max_pde_used * 12;
+       ndw += vm->max_pde_used * 16;
 
        /* update too big for an IB */
        if (ndw > 0xfffff)