Re: [Intel-gfx] [PATCH] [RFT] drm/i915: Ensure a context is loaded before RC6

2014-01-30 Thread Ben Widawsky
On Thu, Jan 30, 2014 at 11:00:35AM -0800, Ben Widawsky wrote: > RC6 works a lot like HW contexts in that when the GPU enters RC6 it > saves away the state to a context, and loads it upon wake. > > It's to be somewhat expected that BIOS will not set up valid GPU state. > As a result, if loading bad

[Intel-gfx] [PATCH] [RFT] drm/i915: Ensure a context is loaded before RC6

2014-01-30 Thread Ben Widawsky
RC6 works a lot like HW contexts in that when the GPU enters RC6 it saves away the state to a context, and loads it upon wake. It's to be somewhat expected that BIOS will not set up valid GPU state. As a result, if loading bad state can cause the GPU to get angry, it would make sense then that we