Re: [igt-dev] [PATCH i-g-t 4/9] tests/kms_lease: test implicit primary plane usage in page_flip ioctl

[Boris Brezillon <boris.brezillon@collabora.com>]

On Thu, 28 Feb 2019 15:19:13 +0100
Daniel Vetter <daniel.vetter@ffwll.ch> wrote:

> We need to make sure that legacy ioctls don't operate on a lease if
> the lesse doesn't have access to the implicitly used primary plane.
> 
> Current kernels fail this.
> 
> Cc: Keith Packard <keithp@keithp.com>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>

> ---
>  tests/kms_lease.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 62 insertions(+)
> 
> diff --git a/tests/kms_lease.c b/tests/kms_lease.c
> index 4823121e8cf4..6453c7beafd8 100644
> --- a/tests/kms_lease.c
> +++ b/tests/kms_lease.c
> @@ -311,6 +311,67 @@ static void simple_lease(data_t *data)
>  	terminate_lease(&lease);
>  }
>  
> +static void page_flip_implicit_plane(data_t *data)
> +{
> +	uint32_t object_ids[3];
> +	struct local_drm_mode_create_lease mcl;
> +	drmModePlaneRes *plane_resources;
> +	uint32_t wrong_plane_id = 0;
> +	int i;
> +
> +	/* find a plane which isn't the primary one for us */
> +	plane_resources = drmModeGetPlaneResources(data->master.fd);
> +	for (i = 0; i < plane_resources->count_planes; i++) {
> +		if (plane_resources->planes[i] != data->plane_id) {
> +			wrong_plane_id = plane_resources->planes[i];
> +			break;
> +		}
> +	}
> +	drmModeFreePlaneResources(plane_resources);
> +	igt_require(wrong_plane_id);
> +
> +	mcl.object_ids = (uint64_t) (uintptr_t) &object_ids[0];
> +	mcl.object_count = 0;
> +	mcl.flags = 0;
> +
> +	object_ids[mcl.object_count++] = data->connector_id;
> +	object_ids[mcl.object_count++] = data->crtc_id;
> +
> +	drmSetClientCap(data->master.fd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 0);
> +	do_or_die(create_lease(data->master.fd, &mcl));
> +	drmSetClientCap(data->master.fd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1);
> +
> +	/* Set a mode on the leased output */
> +	igt_assert_eq(0, prepare_crtc(&data->master, data->connector_id, data->crtc_id));
> +
> +	/* sanity check */
> +	do_or_die(drmModePageFlip(data->master.fd, data->crtc_id,
> +			      data->master.primary_fb.fb_id,
> +			      0, NULL));
> +	igt_wait_for_vblank_count(data->master.fd,
> +				  crtc_id_to_pipe(&data->master.display, data->crtc_id),
> +				  1);
> +	do_or_die(drmModePageFlip(mcl.fd, data->crtc_id,
> +			      data->master.primary_fb.fb_id,
> +			      0, NULL));
> +	close(mcl.fd);
> +
> +	object_ids[mcl.object_count++] = wrong_plane_id;
> +	do_or_die(create_lease(data->master.fd, &mcl));
> +
> +	igt_wait_for_vblank_count(data->master.fd,
> +				  crtc_id_to_pipe(&data->master.display, data->crtc_id),
> +				  1);
> +	igt_assert_eq(drmModePageFlip(mcl.fd, data->crtc_id,
> +				      data->master.primary_fb.fb_id,
> +				      0, NULL),
> +		      -EACCES);
> +	close(mcl.fd);
> +
> +	cleanup_crtc(&data->master,
> +		     connector_id_to_output(&data->master.display, data->connector_id));
> +}
> +
>  /* Test listing lessees */
>  static void lessee_list(data_t *data)
>  {
> @@ -1024,6 +1085,7 @@ igt_main
>  		{ "lease_invalid_connector", lease_invalid_connector },
>  		{ "lease_invalid_crtc", lease_invalid_crtc },
>  		{ "lease_invalid_plane", lease_invalid_plane },
> +		{ "page_flip_implicit_plane", page_flip_implicit_plane },
>  		{ }
>  	}, *f;
>  

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