[igt-dev] [PATCH i-g-t v4 1/4] test/psr: Skip PSR2 tests when panel resolution is bigger than PSR2 HW supports

[Dhinakaran Pandiyan]

On Wed, 2019-01-23 at 15:56 -0800, José Roberto de Souza wrote:
> If resolution that will be used in PSR tests is bigger than the
> resolution that PSR2 HW supports, PSR2 will not be enabled so those
> tests should be skiped. Most of eDP panels only supports one
> resolution that is why we don't even try to use other resolution.
> 
> BSpec: 7713
I don't like the fact that we are re-implementing driver code in the
test to avoid false-positives. We should really replace the panel on
the WHL machine with a panel that is expected to work. 


But, as a temporary measure to make CI happy and enable PSR2.
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>

Rodrigo, what's your opinion on this?

-DK
> 
> Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>
> Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
> Signed-off-by: José Roberto de Souza <jose.souza at intel.com>
> ---
>  tests/kms_psr.c | 21 +++++++++++++++++++--
>  1 file changed, 19 insertions(+), 2 deletions(-)
> 
> diff --git a/tests/kms_psr.c b/tests/kms_psr.c
> index 3e16a6bf..4792e158 100644
> --- a/tests/kms_psr.c
> +++ b/tests/kms_psr.c
> @@ -445,13 +445,30 @@ int main(int argc, char *argv[])
>  		igt_require_f(sink_support(&data, PSR_MODE_1),
>  			      "Sink does not support PSR\n");
>  
> -		data.supports_psr2 = sink_support(&data, PSR_MODE_2);
> -
>  		data.bufmgr = drm_intel_bufmgr_gem_init(data.drm_fd,
> 4096);
>  		igt_assert(data.bufmgr);
>  		drm_intel_bufmgr_gem_enable_reuse(data.bufmgr);
>  
>  		display_init(&data);
> +
> +		data.supports_psr2 = sink_support(&data, PSR_MODE_2);
> +		if (data.supports_psr2) {
> +			uint32_t devid =
> intel_get_drm_devid(data.drm_fd);
> +			uint16_t max_h = 0, max_v = 0;
> +			int gen = intel_gen(devid);
> +
> +			if (gen >= 10 || IS_GEMINILAKE(devid)) {
> +				max_h = 4096;
> +				max_v = 2304;
> +			} else if (gen == 9) {
> +				max_h = 3640;
> +				max_v = 2304;
> +			}
> +
> +			if (data.mode->hdisplay > max_h ||
> +			    data.mode->vdisplay > max_v)
> +				data.supports_psr2 = false;
> +		}
>  	}
>  
>  	for (data.op_psr_mode = PSR_MODE_1; data.op_psr_mode <=
> PSR_MODE_2;