[Intel-gfx] IVB page flipping fixes (hopefully final)

[Zhao, Jian J]

Hi Jesse, 
 With your these two patches: http://lists.freedesktop.org/archives/intel-gfx/2011-June/011014.html It indeed fixed three bugs(#38362, #38392, #38393) on IvyBridge, but it also caused a regression(bug #38428) and another issue is with the patched kernel, the piglit cases' passrate dropped a lot, it changed from 2372(400)/3020 to 1682(397)/3020. The format is PASS(Not Supported)/Total. Though I find some crashed cases can't be reproduced when tested separately now. I will have an investigate on it. It is better if you could have some idea of the relation between the patch and piglit tests. Thanks. 

Best regards
zhaojian  

> -----Original Message-----
> From: intel-gfx-bounces+jian.j.zhao=intel.com at lists.freedesktop.org
> [mailto:intel-gfx-bounces+jian.j.zhao=intel.com at lists.freedesktop.org] On
> Behalf Of Jesse Barnes
> Sent: Friday, June 17, 2011 12:19 AM
> To: intel-gfx at lists.freedesktop.org
> Subject: [Intel-gfx] IVB page flipping fixes (hopefully final)
> 
> This set addresses comments from Dan and Chris, namely:
>   - pin & fence the new fb on the correct ring for IVB
>   - cleanup gen2/3 wait code by putting it in gen2/3 wait functions
>   - remove dead code
>   - fix a race in the split code with the interrupt handler and flip pending
> 
> Thanks,
> Jesse
> 
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