[Intel-gfx] [PATCH 02/16] kselftests: Exercise hw-independent mock tests for i915.ko

Shuah Khan shuah at kernel.org
Thu Dec 8 15:50:17 UTC 2016


On 12/07/2016 07:09 AM, Chris Wilson wrote:
> On Wed, Dec 07, 2016 at 01:58:19PM +0000, Chris Wilson wrote:
>> Although being a GPU driver most functionality of i915.ko depends upon
>> real hardware, many of its internal interfaces can be "mocked" and so
>> tested independently of any hardware. Expanding the test coverage is not
>> only useful for i915.ko, but should provide some integration tests for
>> core infrastructure as well.
>>
>> Loading i915.ko with mock_selftests=-1 will cause it to execute its mock
>> tests then fail with -ENOTTY. If the driver is already loaded and bound
>> to hardware, it requires a few more steps to unbind, and so the simple
>> preliminary modprobe -r will fail.
> 
> I changed the exit condition to return 0 after successfully completing
> the mock tests (when passed mock_selftests=-1) so modprobe reports
> success/fail clearly.
> -Chris
> 

Hi Chris,

Is this patch slated to go in through drm tree with the other patches
in the series. Just make sure you create .gitignore for any generated
files that should be ignored by git

thanks,
-- Shuah


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