Re: [Intel-gfx] [PATCH 1/6] drm/i915: grab force_wake when restoring LCPLL

2013-08-20 Thread Paulo Zanoni
2013/8/19 Ben Widawsky : > On Mon, Aug 19, 2013 at 04:01:13PM -0300, Paulo Zanoni wrote: >> From: Paulo Zanoni >> >> If LCPLL is disabled, there's a chance we might be in package C8 state >> or deeper, and we'll get a hard hang when restoring LCPLL (also, a red >> led lights up on my motherboard).

Re: [Intel-gfx] [PATCH 1/6] drm/i915: grab force_wake when restoring LCPLL

2013-08-19 Thread Ben Widawsky
On Mon, Aug 19, 2013 at 04:01:13PM -0300, Paulo Zanoni wrote: > From: Paulo Zanoni > > If LCPLL is disabled, there's a chance we might be in package C8 state > or deeper, and we'll get a hard hang when restoring LCPLL (also, a red > led lights up on my motherboard). So grab the force_wake, which

[Intel-gfx] [PATCH 1/6] drm/i915: grab force_wake when restoring LCPLL

2013-08-19 Thread Paulo Zanoni
From: Paulo Zanoni If LCPLL is disabled, there's a chance we might be in package C8 state or deeper, and we'll get a hard hang when restoring LCPLL (also, a red led lights up on my motherboard). So grab the force_wake, which will get us out of RC6 and, as a consequence, out of PC8+ (since we need

Re: [Intel-gfx] [PATCH 1/6] drm/i915: grab force_wake when restoring LCPLL

2013-08-19 Thread Chris Wilson
On Mon, Aug 19, 2013 at 01:18:07PM -0300, Paulo Zanoni wrote: > From: Paulo Zanoni > > If LCPLL is disabled, there's a chance we might be in package C8 state > or deeper, and we'll get a hard hang when restoring LCPLL (also, a red > led lights up on my motherboard). So grab the force_wake, which

[Intel-gfx] [PATCH 1/6] drm/i915: grab force_wake when restoring LCPLL

2013-08-19 Thread Paulo Zanoni
From: Paulo Zanoni If LCPLL is disabled, there's a chance we might be in package C8 state or deeper, and we'll get a hard hang when restoring LCPLL (also, a red led lights up on my motherboard). So grab the force_wake, which will get us out of RC6 and, as a consequence, out of PC8+ (since we need