Re: [PATCH] igt/gem_workarounds: igt to test workaround registers

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On 27/08/2014 16:59, Chris Wilson wrote:
On Wed, Aug 27, 2014 at 05:50:16PM +0200, Daniel Vetter wrote:
On Tue, Aug 26, 2014 at 02:50:28PM +0100, Arun Siluvery wrote:
Some of the workarounds are lost followed by a gpu reset, suspend/resume;
this patch adds a test which compares register state before and after
the test scenario.

This test currently verifies only bdw workarounds.

The existing tool didn't need kernel help (other than forcewake). Why
was that not used as a starting point?
-Chris

Do you mean intel_reg_checker()?
This new test uses kernel help to get the initial state of workarounds which are exported to debugfs. We could add this known state to the test itself but Daniel is not ok with that. debugfs part is only added to support the test.

regards
Arun


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