SYNOPSIS

bool intel_set_pch_fifo_underrun_reporting(struct drm_i915_private * dev_priv, enum transcoder pch_transcoder, bool enable);

ARGUMENTS

dev_priv

i915 device instance

pch_transcoder

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

enable

whether underruns should be reported or not

DESCRIPTION

This function makes us disable or enable PCH fifo underruns for a specific PCH transcoder. Notice that on some PCHs (e.g. CPT/PPT), disabling FIFO underrun reporting for one transcoder may also disable all the other PCH error interruts for the other transcoders, due to the fact that there's just one interrupt mask/enable bit for all the transcoders.

Returns the previous state of underrun reporting.

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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