Re: [Intel-gfx] [PATCH 7/7] drm/i915: Dont -ETIMEDOUT on identical new and previous (count, crc).

2015-07-29 Thread Rafael Antognolli
On Wed, Jul 29, 2015 at 10:26:53AM +0200, Daniel Vetter wrote: > On Tue, Jul 28, 2015 at 10:05:21PM +, Vivi, Rodrigo wrote: > > On Tue, 2015-07-28 at 13:25 -0700, Rafael Antognolli wrote: > > > On Thu, Jul 23, 2015 at 04:35:50PM -0700, Rodrigo Vivi wrote: > > > > By Vesa DP 1.2 spec TEST_CRC_CO

Re: [Intel-gfx] [PATCH 7/7] drm/i915: Dont -ETIMEDOUT on identical new and previous (count, crc).

2015-07-29 Thread Daniel Vetter
On Tue, Jul 28, 2015 at 10:05:21PM +, Vivi, Rodrigo wrote: > On Tue, 2015-07-28 at 13:25 -0700, Rafael Antognolli wrote: > > On Thu, Jul 23, 2015 at 04:35:50PM -0700, Rodrigo Vivi wrote: > > > By Vesa DP 1.2 spec TEST_CRC_COUNT is a "4 bit wrap counter which > > > increments each time the TEST_

Re: [Intel-gfx] [PATCH 7/7] drm/i915: Dont -ETIMEDOUT on identical new and previous (count, crc).

2015-07-28 Thread Vivi, Rodrigo
On Tue, 2015-07-28 at 13:25 -0700, Rafael Antognolli wrote: > On Thu, Jul 23, 2015 at 04:35:50PM -0700, Rodrigo Vivi wrote: > > By Vesa DP 1.2 spec TEST_CRC_COUNT is a "4 bit wrap counter which > > increments each time the TEST_CRC_x_x are updated." > > > > However if we are trying to verify the s

Re: [Intel-gfx] [PATCH 7/7] drm/i915: Dont -ETIMEDOUT on identical new and previous (count, crc).

2015-07-28 Thread Rafael Antognolli
On Thu, Jul 23, 2015 at 04:35:50PM -0700, Rodrigo Vivi wrote: > By Vesa DP 1.2 spec TEST_CRC_COUNT is a "4 bit wrap counter which > increments each time the TEST_CRC_x_x are updated." > > However if we are trying to verify the screen hasn't changed we get > same (count, crc) pair twice. Without th