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drm/i915: Add wrappers to handle fifo underrun interrupts

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Way too much copypasta all over. And this also clarifies a bit what's
going on since it separates the "do we have an underrun irq" from the
"should we report the underrun" check.

v2: Fix excessively long lines.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
This commit is contained in:
Daniel Vetter 2014-09-30 10:56:48 +02:00
parent a72e4c9f9a
commit 1f7247c01c
3 changed files with 42 additions and 51 deletions
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72
drivers/gpu/drm/i915/i915_irq.c
View File

@ -1796,10 +1796,8 @@ static void valleyview_pipestat_irq_handler(struct drm_device *dev, u32 iir)
if (pipe_stats[pipe] & PIPE_CRC_DONE_INTERRUPT_STATUS)
i9xx_pipe_crc_irq_handler(dev, pipe);
if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS &&
intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe,
false))
DRM_ERROR("pipe %c underrun\n", pipe_name(pipe));
if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS)
intel_cpu_fifo_underrun_irq_handler(dev_priv, pipe);
}
if (pipe_stats[0] & PIPE_GMBUS_INTERRUPT_STATUS)
@ -1966,16 +1964,10 @@ static void ibx_irq_handler(struct drm_device *dev, u32 pch_iir)
DRM_DEBUG_DRIVER("PCH transcoder CRC error interrupt\n");
if (pch_iir & SDE_TRANSA_FIFO_UNDER)
if (intel_set_pch_fifo_underrun_reporting(dev_priv,
TRANSCODER_A,
false))
DRM_ERROR("PCH transcoder A FIFO underrun\n");
intel_pch_fifo_underrun_irq_handler(dev_priv, TRANSCODER_A);
if (pch_iir & SDE_TRANSB_FIFO_UNDER)
if (intel_set_pch_fifo_underrun_reporting(dev_priv,
TRANSCODER_B,
false))
DRM_ERROR("PCH transcoder B FIFO underrun\n");
intel_pch_fifo_underrun_irq_handler(dev_priv, TRANSCODER_B);
}
static void ivb_err_int_handler(struct drm_device *dev)
@ -1988,12 +1980,8 @@ static void ivb_err_int_handler(struct drm_device *dev)
DRM_ERROR("Poison interrupt\n");
for_each_pipe(dev_priv, pipe) {
if (err_int & ERR_INT_FIFO_UNDERRUN(pipe)) {
if (intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe,
false))
DRM_ERROR("Pipe %c FIFO underrun\n",
pipe_name(pipe));
}
if (err_int & ERR_INT_FIFO_UNDERRUN(pipe))
intel_cpu_fifo_underrun_irq_handler(dev_priv, pipe);
if (err_int & ERR_INT_PIPE_CRC_DONE(pipe)) {
if (IS_IVYBRIDGE(dev))
@ -2015,19 +2003,13 @@ static void cpt_serr_int_handler(struct drm_device *dev)
DRM_ERROR("PCH poison interrupt\n");
if (serr_int & SERR_INT_TRANS_A_FIFO_UNDERRUN)
if (intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A,
false))
DRM_ERROR("PCH transcoder A FIFO underrun\n");
intel_pch_fifo_underrun_irq_handler(dev_priv, TRANSCODER_A);
if (serr_int & SERR_INT_TRANS_B_FIFO_UNDERRUN)
if (intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_B,
false))
DRM_ERROR("PCH transcoder B FIFO underrun\n");
intel_pch_fifo_underrun_irq_handler(dev_priv, TRANSCODER_B);
if (serr_int & SERR_INT_TRANS_C_FIFO_UNDERRUN)
if (intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_C,
false))
DRM_ERROR("PCH transcoder C FIFO underrun\n");
intel_pch_fifo_underrun_irq_handler(dev_priv, TRANSCODER_C);
I915_WRITE(SERR_INT, serr_int);
}
@ -2093,11 +2075,7 @@ static void ilk_display_irq_handler(struct drm_device *dev, u32 de_iir)
intel_check_page_flip(dev, pipe);
if (de_iir & DE_PIPE_FIFO_UNDERRUN(pipe))
if (intel_set_cpu_fifo_underrun_reporting(dev_priv,
pipe,
false))
DRM_ERROR("Pipe %c FIFO underrun\n",
pipe_name(pipe));
intel_cpu_fifo_underrun_irq_handler(dev_priv, pipe);
if (de_iir & DE_PIPE_CRC_DONE(pipe))
i9xx_pipe_crc_irq_handler(dev, pipe);
@ -2316,13 +2294,9 @@ static irqreturn_t gen8_irq_handler(int irq, void *arg)
if (pipe_iir & GEN8_PIPE_CDCLK_CRC_DONE)
hsw_pipe_crc_irq_handler(dev, pipe);
if (pipe_iir & GEN8_PIPE_FIFO_UNDERRUN) {
if (intel_set_cpu_fifo_underrun_reporting(dev_priv,
pipe,
false))
DRM_ERROR("Pipe %c FIFO underrun\n",
pipe_name(pipe));
}
if (pipe_iir & GEN8_PIPE_FIFO_UNDERRUN)
intel_cpu_fifo_underrun_irq_handler(dev_priv,
pipe);
if (IS_GEN9(dev))
@ -3839,10 +3813,9 @@ static irqreturn_t i8xx_irq_handler(int irq, void *arg)
if (pipe_stats[pipe] & PIPE_CRC_DONE_INTERRUPT_STATUS)
i9xx_pipe_crc_irq_handler(dev, pipe);
if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS &&
intel_set_cpu_fifo_underrun_reporting(dev_priv,
pipe, false))
DRM_ERROR("pipe %c underrun\n", pipe_name(pipe));
if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS)
intel_cpu_fifo_underrun_irq_handler(dev_priv,
pipe);
}
iir = new_iir;
@ -4034,10 +4007,9 @@ static irqreturn_t i915_irq_handler(int irq, void *arg)
if (pipe_stats[pipe] & PIPE_CRC_DONE_INTERRUPT_STATUS)
i9xx_pipe_crc_irq_handler(dev, pipe);
if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS &&
intel_set_cpu_fifo_underrun_reporting(dev_priv,
pipe, false))
DRM_ERROR("pipe %c underrun\n", pipe_name(pipe));
if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS)
intel_cpu_fifo_underrun_irq_handler(dev_priv,
pipe);
}
if (blc_event || (iir & I915_ASLE_INTERRUPT))
@ -4263,10 +4235,8 @@ static irqreturn_t i965_irq_handler(int irq, void *arg)
if (pipe_stats[pipe] & PIPE_CRC_DONE_INTERRUPT_STATUS)
i9xx_pipe_crc_irq_handler(dev, pipe);
if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS &&
intel_set_cpu_fifo_underrun_reporting(dev_priv,
pipe, false))
DRM_ERROR("pipe %c underrun\n", pipe_name(pipe));
if (pipe_stats[pipe] & PIPE_FIFO_UNDERRUN_STATUS)
intel_cpu_fifo_underrun_irq_handler(dev_priv, pipe);
}
if (blc_event || (iir & I915_ASLE_INTERRUPT))

4
drivers/gpu/drm/i915/intel_drv.h
View File

@ -761,6 +761,10 @@ bool intel_set_cpu_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
bool intel_set_pch_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
enum transcoder pch_transcoder,
bool enable);
void intel_cpu_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
enum pipe pipe);
void intel_pch_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
enum transcoder pch_transcoder);
void i9xx_check_fifo_underruns(struct drm_i915_private *dev_priv);
bool __cpu_fifo_underrun_reporting_enabled(struct drm_i915_private *dev_priv,
enum pipe pipe);

17
drivers/gpu/drm/i915/intel_fifo_underrun.c
View File

@ -308,3 +308,20 @@ bool intel_set_pch_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
spin_unlock_irqrestore(&dev_priv->irq_lock, flags);
return old;
}
void intel_cpu_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
enum pipe pipe)
{
if (intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false))
DRM_ERROR("CPU pipe %c FIFO underrun\n",
pipe_name(pipe));
}
void intel_pch_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
enum transcoder pch_transcoder)
{
if (intel_set_pch_fifo_underrun_reporting(dev_priv, pch_transcoder,
false))
DRM_ERROR("PCH transcoder %c FIFO underrun\n",
transcoder_name(pch_transcoder));
}