nv50: align pitch of linear surfaces correctly

src/gallium/drivers/nv50/nv50_miptree.c

@@ -185,6 +185,7 @@ boolean
 nv50_miptree_init_layout_linear(struct nv50_miptree *mt)
 {
    struct pipe_resource *pt = &mt->base.base;
+   const unsigned blocksize = util_format_get_blocksize(pt->format);
 
    if (util_format_is_depth_or_stencil(pt->format))
       return FALSE;
@@ -194,7 +195,7 @@ nv50_miptree_init_layout_linear(struct nv50_miptree *mt)
    if (mt->ms_x | mt->ms_y)
       return FALSE;
 
-   mt->level[0].pitch = align(pt->width0, 64);
+   mt->level[0].pitch = align(pt->width0 * blocksize, 64);
 
    mt->total_size = mt->level[0].pitch * pt->height0;