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| author | Ben Widawsky | 2011-04-25 20:25:20 +0200 |
|---|---|---|
| committer | Keith Packard | 2011-05-10 22:56:47 +0200 |
| commit | 4912d04193733a825216b926ffd290fada88ab07 (patch) | |
| tree | 28f299240c04955f9cca7a7fad794ece744da4bb /drivers/s390 | |
| parent | drm/i915: forcewake struct mutex locking fixes (diff) | |
| download | kernel-qcow2-linux-4912d04193733a825216b926ffd290fada88ab07.tar.gz kernel-qcow2-linux-4912d04193733a825216b926ffd290fada88ab07.tar.xz kernel-qcow2-linux-4912d04193733a825216b926ffd290fada88ab07.zip | |
drm/i915: move gen6 rps handling to workqueue
The render P-state handling code requires reading from a GT register.
This means that FORCEWAKE must be written to, a resource which is shared
and should be protected by struct_mutex. Hence we can not manipulate
that register from within the interrupt handling and so must delegate
the task to a workqueue.
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'drivers/s390')
0 files changed, 0 insertions, 0 deletions