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| author | Ben Widawsky <ben@bwidawsk.net> | 2011-04-25 11:25:20 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2011-05-10 13:56:47 -0700 |
| commit | 4912d04193733a825216b926ffd290fada88ab07 (patch) | |
| tree | 28f299240c04955f9cca7a7fad794ece744da4bb /drivers/gpu/drm/i915/i915_drv.h | |
| parent | d1ebd816e6d7967c764f0cfa7d718f7c5cc7a8e4 (diff) | |
| download | blackbird-op-linux-4912d04193733a825216b926ffd290fada88ab07.tar.gz blackbird-op-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/gpu/drm/i915/i915_drv.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index bafb387dd416..e9d824326a03 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -682,6 +682,10 @@ typedef struct drm_i915_private { bool mchbar_need_disable; + struct work_struct rps_work; + spinlock_t rps_lock; + u32 pm_iir; + u8 cur_delay; u8 min_delay; u8 max_delay; |
