I've tested all three patches in this series, on an AMD E-350 platform. 1/3 is essential to prevent a complete system hang if the GPU needs resetting during a page flip; the disaster case is this endless loop running on core 0, and RCU on core 1 waiting for core 0 to idle.
The remaining two need matching patches to the DDX to be useful, and expose bugs in Mesa as well. Tested-by: Simon Farnsworth <[email protected]> On Monday 28 November 2011, [email protected] wrote: > From: Alex Deucher <[email protected]> > > Avoid infinite loops waiting for surface updates if a GPU > reset happens while waiting for a page flip. > > See: > https://bugs.freedesktop.org/show_bug.cgi?id=43191 > > Signed-off-by: Alex Deucher <[email protected]> > Cc: [email protected] > Cc: Mario Kleiner <[email protected]> > --- > drivers/gpu/drm/radeon/evergreen.c | 7 ++++++- > drivers/gpu/drm/radeon/r100.c | 7 ++++++- > drivers/gpu/drm/radeon/rs600.c | 7 ++++++- > drivers/gpu/drm/radeon/rv770.c | 7 ++++++- > 4 files changed, 24 insertions(+), 4 deletions(-) > -- Simon Farnsworth Software Engineer ONELAN Limited http://www.onelan.com/ _______________________________________________ dri-devel mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/dri-devel
