From: Dave Airlie Date: Fri, 5 Feb 2010 06:00:07 +0000 (+1000) Subject: drm/radeon/kms: set gart pages to invalid on unbind and point to dummy page X-Git-Tag: v2.6.34-rc1~209^2~10^2~31 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=82568565683b4991964a5fc89a9ca0c7122818e8;p=pandora-kernel.git 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-diff-tree failed