drm/i915: Add debugfs hooks for messign with watermark latencies

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Add a few new debugfs files which allow changing the watermark memory
latency values during runtime. This can be used to determine the if the
original BIOS provided latency values are no good.

v2: Drop superfluous plane name from output
    Take modeset locks around the latency value read/write

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

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Ville Syrjälä 2014-01-22 14:36:08 +02:00 • committed by Daniel Vetter

parent 3c0edaebb9

commit 369a13425d

1 changed files with 171 additions and 0 deletions

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drivers/gpu/drm/i915/i915_debugfs.c

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