[Intel-gfx] [PATCH i-g-t 3/7] lib/igt_kms: Make sure that default planes aren't overwritten.

[Daniel Vetter]

On Wed, Apr 20, 2016 at 10:59:45AM -0400, robert.foss at collabora.com wrote:
> From: Robert Foss <robert.foss at collabora.com>
> 
> Avoid overwriting planes with statically asigned indices
> with planes that have dynamically assigned indices.
> 
> Signed-off-by: Robert Foss <robert.foss at collabora.com>
> ---
>  lib/igt_kms.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/lib/igt_kms.c b/lib/igt_kms.c
> index 07fb73b..3f953ec 100644
> --- a/lib/igt_kms.c
> +++ b/lib/igt_kms.c
> @@ -1326,6 +1326,8 @@ void igt_display_init(igt_display_t *display, int drm_fd)
>  				display->has_universal_planes = 1;
>  				break;
>  			default:
> +				while (p == IGT_PLANE_PRIMARY || p == IGT_PLANE_CURSOR)
> +					p++;

What we might need to do is to actually make primary and cursor
dynamically assigned. Since with most drivers that's the case that
happens. Otoh we have a variable number of planes on i915 too, so not
entirely sure now what's going on here ...
-Daniel

>  				plane = &pipe->planes[p];
>  				plane->index = p++;
>  				break;
> -- 
> 2.5.0
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch