Re: [Intel-gfx] [PATCH 1/3] drm/i915: Never fully mask the the EI up rps interrupt on SNB/IVB

2016-05-23 Thread Ville Syrjälä
On Mon, May 23, 2016 at 03:30:04PM +0100, Chris Wilson wrote: > On Mon, May 23, 2016 at 05:09:41PM +0300, ville.syrj...@linux.intel.com wrote: > > From: Ville Syrjälä > > > > SNB (and IVB too I suppose) starts to misbehave if the GPU gets stuck > > in an infinite batch buffer loop. The GPU appare

Re: [Intel-gfx] [PATCH 1/3] drm/i915: Never fully mask the the EI up rps interrupt on SNB/IVB

2016-05-23 Thread Chris Wilson
On Mon, May 23, 2016 at 05:09:41PM +0300, ville.syrj...@linux.intel.com wrote: > From: Ville Syrjälä > > SNB (and IVB too I suppose) starts to misbehave if the GPU gets stuck > in an infinite batch buffer loop. The GPU apparently hogs something > critical and CPUs start to lose interrupts and wha

[Intel-gfx] [PATCH 1/3] drm/i915: Never fully mask the the EI up rps interrupt on SNB/IVB

2016-05-23 Thread ville . syrjala
From: Ville Syrjälä SNB (and IVB too I suppose) starts to misbehave if the GPU gets stuck in an infinite batch buffer loop. The GPU apparently hogs something critical and CPUs start to lose interrupts and whatnot. We can keep the system limping along by unmasking some interrupts in GEN6_PMINTRMSK