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| author | Chris Wilson | 2010-11-05 09:56:38 +0100 |
|---|---|---|
| committer | Chris Wilson | 2010-11-08 10:21:47 +0100 |
| commit | 08deebf98783d3de553eed2c9b6b8dcc7e168567 (patch) | |
| tree | c47353e5384038c34614cd8c00025976a8de5b28 /drivers/gpu/drm/i915/intel_lvds.c | |
| parent | drm/i915: Avoid might_fault during pwrite whilst holding our mutex (diff) | |
| download | kernel-qcow2-linux-08deebf98783d3de553eed2c9b6b8dcc7e168567.tar.gz kernel-qcow2-linux-08deebf98783d3de553eed2c9b6b8dcc7e168567.tar.xz kernel-qcow2-linux-08deebf98783d3de553eed2c9b6b8dcc7e168567.zip | |
drm/i915/ringbuffer: Use the HEAD auto-reporting mechanism
My Sandybridge only reports 0 for the ring buffer registers, causing it
to hang as soon as we exhaust the available ring. As a workaround, take
advantage of our huge ring buffers and use the auto-reporting mechanism
to update the status page with the HEAD location every 64 KiB.
Cherry-picked from 6aa56062eaba67adfb247cded244fd877329588d.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=31404
Tested-by: Zhao Jian <jian.j.zhao@intel.com>
Cc: stable@kernel.org
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_lvds.c')
0 files changed, 0 insertions, 0 deletions