Messages in this thread |  | | | From | Vasily Khoruzhick <> | | Subject | Re: [Intel-gfx] Interrupt latency on some 945GM platforms | | Date | Wed, 22 Sep 2010 08:57:30 +0300 |
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On 22 of September 2010 01:56:53 Jesse Barnes wrote:
> Can you guys try something like this? My theory is that 945GM has some > power management behavior we're failing to configure correctly. If > disabling it works, then it's likely related.
Nope, it doesn't help, sorry
> diff --git a/drivers/gpu/drm/i915/intel_display.c > b/drivers/gpu/drm/i915/intel_d index 40cc5da..26e1d23 100644 > --- a/drivers/gpu/drm/i915/intel_display.c > +++ b/drivers/gpu/drm/i915/intel_display.c > @@ -5786,6 +5786,10 @@ void intel_init_clock_gating(struct drm_device *dev) > I915_READ(MCHBAR_RENDER_STANDBY) & > ~RCX_SW_EX } > } > + > + > + /* Disable power management on 945GM */ > + I915_WRITE(0x10f10, 0); > } > > /* Set up chip specific display functions */
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