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From: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
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Date: Tue, 21 Apr 2020 23:06:27 +0300
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Subject: Re: [igt-dev] [PATCH i-g-t] tests/perf: Fix B0 counter check in
 gen12-mi-rpc
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To: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>, igt-dev@lists.freedesktop.org, Ashutosh Dixit <ashutosh.dixit@intel.com>
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On 21/04/2020 21:22, Umesh Nerlige Ramappa wrote:
> The gen12-mi-rpc test checks for B0 counter to be zero, however,
> occassionally the counter reads a non-zero value. To ensure the test
> works as expected, we check B0 with the preset value.


What the value being reported?


Sounds like we should ask around see if there isn't a deeper problem 
with the HW configuration.


-Lionel


>
> Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
> Fixes: https://gitlab.freedesktop.org/drm/intel/-/issues/1085
> ---
>   tests/perf.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tests/perf.c b/tests/perf.c
> index b7d5e50e..9d0ed45c 100644
> --- a/tests/perf.c
> +++ b/tests/perf.c
> @@ -3002,7 +3002,7 @@ gen12_test_mi_rpc(void)
>   	 */
>   	igt_assert_eq(report32[0], REPORT_ID);
>   	igt_assert_neq(report32[1], 0);
> -	igt_assert_eq(report32[format.b_off >> 2], 0);
> +	igt_assert_neq(report32[format.b_off >> 2], 0x80808080);
>   	igt_assert_eq(report32[format_size_32], 0x80808080);
>   
>   	drm_intel_bo_unmap(bo);


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