intel_pch_fifo_underrun_irq_handler
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## Name

intel_pch_fifo_underrun_irq_handler — handle PCH fifo underrun interrupt

## Synopsis

`void intel_pch_fifo_underrun_irq_handler (` | struct drm_i915_private * dev_priv,
| enum transcoder pch_transcoder`)`;

## Arguments

`dev_priv`

  i915 device instance

`pch_transcoder`

  the PCH transcoder (same as pipe on IVB and older)

## Description

This handles a PCH fifo underrun interrupt, generating an underrun warning into dmesg if underrun reporting is enabled and then disables the underrun interrupt to avoid an irq storm.

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