[Intel-gfx] [PATCH RESEND 1/7] drm/dsc: use rc_model_size from DSC config for PPS

[Kulkarni, Vandita]

> -----Original Message-----
> From: Jani Nikula <jani.nikula at intel.com>
> Sent: Friday, March 27, 2020 6:12 PM
> To: intel-gfx at lists.freedesktop.org; dri-devel at lists.freedesktop.org
> Cc: Nikula, Jani <jani.nikula at intel.com>; Alex Deucher
> <alexdeucher at gmail.com>; Harry Wentland <hwentlan at amd.com>; Navare,
> Manasi D <manasi.d.navare at intel.com>; Kulkarni, Vandita
> <vandita.kulkarni at intel.com>
> Subject: [PATCH RESEND 1/7] drm/dsc: use rc_model_size from DSC config for
> PPS
> 
> The PPS is supposed to reflect the DSC config instead of hard coding the
> rc_model_size. Make it so.
> 
> Currently all users of drm_dsc_pps_payload_pack() hard code the size to
> 8192 also in the DSC config, so this change should have no impact, other than
> allowing the drivers to use other sizes as needed.
> 
> Cc: Alex Deucher <alexdeucher at gmail.com>
> Cc: Harry Wentland <hwentlan at amd.com>
> Cc: Manasi Navare <manasi.d.navare at intel.com>
> Cc: Vandita Kulkarni <vandita.kulkarni at intel.com>
> Signed-off-by: Jani Nikula <jani.nikula at intel.com>

Looks good to me.
Reviewed-by: Vandita Kulkarni <vandita.kulkarni at intel.com>
> ---
>  drivers/gpu/drm/drm_dsc.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_dsc.c b/drivers/gpu/drm/drm_dsc.c index
> 4a475d9696ff..09afbc01ea94 100644
> --- a/drivers/gpu/drm/drm_dsc.c
> +++ b/drivers/gpu/drm/drm_dsc.c
> @@ -186,8 +186,7 @@ void drm_dsc_pps_payload_pack(struct
> drm_dsc_picture_parameter_set *pps_payload,
>  	pps_payload->flatness_max_qp = dsc_cfg->flatness_max_qp;
> 
>  	/* PPS 38, 39 */
> -	pps_payload->rc_model_size =
> -		cpu_to_be16(DSC_RC_MODEL_SIZE_CONST);
> +	pps_payload->rc_model_size = cpu_to_be16(dsc_cfg->rc_model_size);
> 
>  	/* PPS 40 */
>  	pps_payload->rc_edge_factor = DSC_RC_EDGE_FACTOR_CONST;
> --
> 2.20.1