[Intel-gfx] [PATCH] drm/i915: update src and dst scaler limits for display ver 12 and 13

[Nautiyal, Ankit K]

Hi Luca,

Patch looks good to me. Please add 'Bspec:50441' in commit message for 
reference.

Also, you might need to re-submit for test, as last time the other 
scaler changes were not merged, and CI build had failed.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>


Thanks & Regards,

Ankit


On 12/24/2022 12:27 AM, Luca Coelho wrote:
> The bspec has been updated and now display versions 12 and 13 support
> source width up to 5120 pixels, source height up to 8192 lines,
> destination width up to 8192 and destination height up to 8192.
>
> Update the code accordingly.
>
> Signed-off-by: Luca Coelho <luciano.coelho at intel.com>
> ---
>   drivers/gpu/drm/i915/display/skl_scaler.c | 11 ++++++++++-
>   1 file changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/display/skl_scaler.c b/drivers/gpu/drm/i915/display/skl_scaler.c
> index 01e881293612..473d53610b92 100644
> --- a/drivers/gpu/drm/i915/display/skl_scaler.c
> +++ b/drivers/gpu/drm/i915/display/skl_scaler.c
> @@ -87,6 +87,10 @@ static u16 skl_scaler_calc_phase(int sub, int scale, bool chroma_cosited)
>   #define ICL_MAX_SRC_H 4096
>   #define ICL_MAX_DST_W 5120
>   #define ICL_MAX_DST_H 4096
> +#define TGL_MAX_SRC_W 5120
> +#define TGL_MAX_SRC_H 8192
> +#define TGL_MAX_DST_W 8192
> +#define TGL_MAX_DST_H 8192
>   #define MTL_MAX_SRC_W 4096
>   #define MTL_MAX_SRC_H 8192
>   #define MTL_MAX_DST_W 8192
> @@ -173,11 +177,16 @@ skl_update_scaler(struct intel_crtc_state *crtc_state, bool force_detach,
>   		max_src_h = SKL_MAX_SRC_H;
>   		max_dst_w = SKL_MAX_DST_W;
>   		max_dst_h = SKL_MAX_DST_H;
> -	} else if (DISPLAY_VER(dev_priv) < 14) {
> +	} else if (DISPLAY_VER(dev_priv) < 12) {
>   		max_src_w = ICL_MAX_SRC_W;
>   		max_src_h = ICL_MAX_SRC_H;
>   		max_dst_w = ICL_MAX_DST_W;
>   		max_dst_h = ICL_MAX_DST_H;
> +	} else if (DISPLAY_VER(dev_priv) < 14) {
> +		max_src_w = TGL_MAX_SRC_W;
> +		max_src_h = TGL_MAX_SRC_H;
> +		max_dst_w = TGL_MAX_DST_W;
> +		max_dst_h = TGL_MAX_DST_H;
>   	} else {
>   		max_src_w = MTL_MAX_SRC_W;
>   		max_src_h = MTL_MAX_SRC_H;