intel_pch_fifo_underrun_irq_handler(9) 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.

AUTHORS

Jesse Barnes <[email protected]>
Intel Corporation,         
        

Initial version

Laurent Pinchart <[email protected]>
Ideas on board SPRL,         
        

Driver internals

Daniel Vetter <[email protected]>
Intel Corporation,         
        

Contributions all over the place

Lukas Wunner <[email protected]>

vga_switcheroo documentation

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