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Commit 2837ac40 authored by Imre Deak's avatar Imre Deak Committed by Daniel Vetter
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drm/i915: vlv: increase timeout when setting idle GPU freq 

I saw punit timeouts in vlv_set_rps_idle() while running various
subtests of pm_rpm. Increasing the timeout to 100ms got rid of the
issue.

Testcase: igt/pm_rpm
Reference: https://bugs.freedesktop.org/show_bug.cgi?id=82939


Signed-off-by: default avatarImre Deak <imre.deak@intel.com>
Tested-by: default avatarGuo Jinxian <jinxianx.guo@intel.com>
Reviewed-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 738c05c0

drivers/gpu/drm/i915/intel_pm.c

+1 −1
Original line number Diff line number Diff line
@@ -4451,7 +4451,7 @@ static void vlv_set_rps_idle(struct drm_i915_private *dev_priv) 
					dev_priv->rps.min_freq_softlimit);



	if (wait_for(((vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS))

				& GENFREQSTATUS) == 0, 5))

				& GENFREQSTATUS) == 0, 100))

		DRM_ERROR("timed out waiting for Punit\n");



	vlv_force_gfx_clock(dev_priv, false);