From 82568565683b4991964a5fc89a9ca0c7122818e8 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Fri, 5 Feb 2010 16:00:07 +1000 Subject: [PATCH] drm/radeon/kms: set gart pages to invalid on unbind and point to dummy page this uses a new entrypoint to invalidate gart entries instead of using 0. Changed to rather than pointing to 0 address point empty entry to dummy page. This might help to avoid hard lockup if for some wrong reasons GPU try to access unmapped GART entry. I'm not 100% sure this is going to work, we probably need to allocate a dummy page and point all the GTT entries at it similiar to what AGP does. but we can test this first I suppose. Signed-off-by: Jerome Glisse Signed-off-by: Dave Airlie --- Reading git-format-patch failed