On Mon, May 30, 2016 at 03:22:31PM +0530, Sagar Arun Kamble wrote: > On Loading, GuC sets PM interrupts routing (bit 31) and unmasks ARAT > expired interrupt (bit 9). Host turbo also updates this register > in RPS flows. This patch ensures bit 31 and bit 9 setup by GuC persists. > ARAT timer interrupt is needed in GuC for various features. It also > facilitates halting GuC and hence achieving RC6. PM interrupt routing > will not impact RPS interrupt reception by host as GuC will redirect > them. > This patch fixes igt test pm_rc6_residency. Tested with SKL GuC v6.1 > and BXT GuC v5.1 and v8.7. i915_irq/intel_pm do not want to be mucking around inside intel_guc. Move the mask to dev_priv->rps, have it initialised during early irq setup and modify the mask when guc loads (presumably also triggering a resanitize just in case). -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
