drm/i915: Wire up cpu fifo underrun reporting support for bdw

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HW engineers have listened and given us again a real interrupt with
masking and status regs. Yay!

For consistency with other platforms call the #define FIFO_UNDERRUN.
Eventually we also might need to have some enable/disable functions
for bdw display interrupts, but for now open-coding seems to be good
enough.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Daniel Vetter 2013-11-07 11:05:46 +01:00

parent 7167d7c677

commit 38d83c96a3

2 changed files with 26 additions and 1 deletions

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25

drivers/gpu/drm/i915/i915_irq.c

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2

drivers/gpu/drm/i915/i915_reg.h

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