[igt-dev] [PATCH i-g-t 03/12] lib/igt_draw: mark buffers as SCANOUT

[Mishra, Pallavi]

> -----Original Message-----
> From: Auld, Matthew <matthew.auld at intel.com>
> Sent: Thursday, October 5, 2023 8:31 AM
> To: igt-dev at lists.freedesktop.org
> Cc: intel-xe at lists.freedesktop.org; Souza, Jose <jose.souza at intel.com>;
> Mishra, Pallavi <pallavi.mishra at intel.com>
> Subject: [PATCH i-g-t 03/12] lib/igt_draw: mark buffers as SCANOUT
> 
> Display buffers likely will want WC, instead of the default WB on the CPU side,
> given that display engine is incoherent with CPU caches.
> 
> Signed-off-by: Matthew Auld <matthew.auld at intel.com>
> Cc: José Roberto de Souza <jose.souza at intel.com>
> Cc: Pallavi Mishra <pallavi.mishra at intel.com>

Reviewed-by: Pallavi Mishra <pallavi.mishra at intel.com>
> ---
>  lib/igt_draw.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/lib/igt_draw.c b/lib/igt_draw.c index 476778a13..2332bf94a
> 100644
> --- a/lib/igt_draw.c
> +++ b/lib/igt_draw.c
> @@ -791,7 +791,8 @@ static void draw_rect_render(int fd, struct cmd_data
> *cmd_data,
>  	else
>  		tmp.handle = xe_bo_create_flags(fd, 0,
>  						ALIGN(tmp.size,
> xe_get_default_alignment(fd)),
> -						visible_vram_if_possible(fd,
> 0));
> +						visible_vram_if_possible(fd,
> 0) |
> +
> 	XE_GEM_CREATE_FLAG_SCANOUT);
> 
>  	tmp.stride = rect->w * pixel_size;
>  	tmp.bpp = buf->bpp;
> --
> 2.41.0