Re: [igt-dev] [PATCH i-g-t] kms_plane_alpha_blend: Start CRC after enabling display.

[Imre Deak <imre.deak@intel.com>]

On Wed, Oct 03, 2018 at 11:13:41AM +0200, Maarten Lankhorst wrote:
> This will fix the -EIO from trying to start CRC on a disabled pipe.
> 
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108147
> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> ---
>  tests/kms_plane_alpha_blend.c | 13 ++++++++++---
>  1 file changed, 10 insertions(+), 3 deletions(-)
> 
> diff --git a/tests/kms_plane_alpha_blend.c b/tests/kms_plane_alpha_blend.c
> index 81c8cb916a63..3fab118ae0e1 100644
> --- a/tests/kms_plane_alpha_blend.c
> +++ b/tests/kms_plane_alpha_blend.c
> @@ -266,8 +266,9 @@ static void basic_alpha(data_t *data, enum pipe pipe, igt_plane_t *plane)
>  	igt_display_commit2(display, COMMIT_ATOMIC);
>  
>  	igt_pipe_crc_get_current(display->drm_fd, data->pipe_crc, &crc);
> -	igt_pipe_crc_stop(data->pipe_crc);
>  	igt_assert_crc_equal(&ref_crc, &crc);
> +
> +	igt_pipe_crc_stop(data->pipe_crc);

Unrelated to this patch, but noticed that argb_fb_0 is an opaque FB
which wasn't intended? The test happens to pass just because argb_fb_0
is black, so maybe that should be changed too.

>  }
>  
>  static void argb_opaque(data_t *data, enum pipe pipe, igt_plane_t *plane)
> @@ -390,6 +391,7 @@ static void alpha_7efc(data_t *data, enum pipe pipe, igt_plane_t *plane)
>  	if (plane->type != DRM_PLANE_TYPE_PRIMARY)
>  		igt_plane_set_fb(igt_pipe_get_plane_type(&display->pipes[pipe], DRM_PLANE_TYPE_PRIMARY), &data->gray_fb);
>  
> +	igt_display_commit2(display, COMMIT_ATOMIC);
>  	igt_pipe_crc_start(data->pipe_crc);
>  
>  	/* for coverage, plane alpha and fb alpha should be swappable, so swap fb and alpha */
> @@ -407,6 +409,8 @@ static void alpha_7efc(data_t *data, enum pipe pipe, igt_plane_t *plane)
>  		igt_pipe_crc_get_current(display->drm_fd, data->pipe_crc, &crc);
>  		igt_assert_crc_equal(&ref_crc, &crc);
>  	}
> +
> +	igt_pipe_crc_stop(data->pipe_crc);
>  }
>  
>  static void coverage_7efc(data_t *data, enum pipe pipe, igt_plane_t *plane)
> @@ -416,6 +420,7 @@ static void coverage_7efc(data_t *data, enum pipe pipe, igt_plane_t *plane)
>  	int i;
>  
>  	igt_plane_set_prop_enum(plane, IGT_PLANE_PIXEL_BLEND_MODE, "Coverage");
> +	igt_display_commit2(display, COMMIT_ATOMIC);
>  	igt_pipe_crc_start(data->pipe_crc);
>  
>  	/* for coverage, plane alpha and fb alpha should be swappable, so swap fb and alpha */
> @@ -433,6 +438,8 @@ static void coverage_7efc(data_t *data, enum pipe pipe, igt_plane_t *plane)
>  		igt_pipe_crc_get_current(display->drm_fd, data->pipe_crc, &crc);
>  		igt_assert_crc_equal(&ref_crc, &crc);
>  	}
> +
> +	igt_pipe_crc_stop(data->pipe_crc);
>  }
>  
>  static void coverage_premult_constant(data_t *data, enum pipe pipe, igt_plane_t *plane)
> @@ -462,6 +469,8 @@ static void coverage_premult_constant(data_t *data, enum pipe pipe, igt_plane_t
>  	igt_display_commit2(display, COMMIT_ATOMIC);
>  	igt_pipe_crc_get_current(display->drm_fd, data->pipe_crc, &crc);
>  	igt_assert_crc_equal(&ref_crc, &crc);
> +
> +	igt_pipe_crc_stop(data->pipe_crc);
>  }
>  
>  static void run_test_on_pipe_planes(data_t *data, enum pipe pipe, bool blend,
> @@ -554,8 +563,6 @@ igt_main
>  	enum pipe pipe;
>  
>  	igt_fixture {
> -		igt_skip_on_simulation();
> -

Should've been a separate change.

Looks ok:
Reviewed-by: Imre Deak <imre.deak@intel.com>

>  		data.gfx_fd = drm_open_driver(DRIVER_ANY);
>  		igt_require_pipe_crc(data.gfx_fd);
>  		igt_display_init(&data.display, data.gfx_fd);
> -- 
> 2.19.0
> 
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