diff options
| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-12-01 21:03:59 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-12-06 13:19:13 +0100 |
| commit | ef04f00d12312e43b13ba8f79435763e25aaff5c (patch) | |
| tree | 6cd60c6a4ac2f562c768afd0b6901c2af39920b4 /drivers/gpu/drm | |
| parent | 9ee32fea5fe810ec06af3a15e4c65478de56d4f5 (diff) | |
drm/i915: use _NOTRACE for gmbus/dp aux wait loops
Less clutter in the traces. And in both cases we yell rather loud
into the logs if we time out. Patch suggested by Chris Wilson.
v2: Annotate another I915_READ in dp_aux to be consistent - we filter
out all register io in wait_for and similar loops. Chris also
suggested to mark all dp_aux register access as _NOTRACE, but I think
we should keep all functionally relevant access around, and filter
unneeded bits in userspace after the trace is captured.
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_i2c.c | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index ada1b316195c..3f633cadc8ba 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -351,7 +351,7 @@ intel_dp_aux_wait_done(struct intel_dp *intel_dp, bool has_aux_irq) } } -#define C (((status = I915_READ(ch_ctl)) & DP_AUX_CH_CTL_SEND_BUSY) == 0) +#define C (((status = I915_READ_NOTRACE(ch_ctl)) & DP_AUX_CH_CTL_SEND_BUSY) == 0) if (has_aux_irq) done = wait_event_timeout(dev_priv->gmbus_wait_queue, C, 10); else @@ -439,7 +439,7 @@ intel_dp_aux_ch(struct intel_dp *intel_dp, /* Try to wait for any previous AUX channel activity */ for (try = 0; try < 3; try++) { - status = I915_READ(ch_ctl); + status = I915_READ_NOTRACE(ch_ctl); if ((status & DP_AUX_CH_CTL_SEND_BUSY) == 0) break; msleep(1); diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c index 1fc31191b910..7f0904170963 100644 --- a/drivers/gpu/drm/i915/intel_i2c.c +++ b/drivers/gpu/drm/i915/intel_i2c.c @@ -223,7 +223,7 @@ gmbus_wait_hw_status(struct drm_i915_private *dev_priv, prepare_to_wait(&dev_priv->gmbus_wait_queue, &wait, TASK_UNINTERRUPTIBLE); - gmbus2 = I915_READ(GMBUS2 + reg_offset); + gmbus2 = I915_READ_NOTRACE(GMBUS2 + reg_offset); if (gmbus2 & (GMBUS_SATOER | gmbus2_status)) break; @@ -246,7 +246,7 @@ gmbus_wait_idle(struct drm_i915_private *dev_priv) int ret; int reg_offset = dev_priv->gpio_mmio_base; -#define C ((I915_READ(GMBUS2 + reg_offset) & GMBUS_ACTIVE) == 0) +#define C ((I915_READ_NOTRACE(GMBUS2 + reg_offset) & GMBUS_ACTIVE) == 0) if (!HAS_GMBUS_IRQ(dev_priv->dev)) return wait_for(C, 10); |