Re: [PATCH 2/4] drm/i915/xe3lpd: Increase max_h max_v for PSR

["Nautiyal, Ankit K" <ankit.k.nautiyal@intel.com>]

On 10/24/2024 9:25 AM, Suraj Kandpal wrote:
> Spec states that PSR max active is same as max pipe active values.
> Now that each pipe supports 6k resolution increasing max_h and
> max_v for PSR too.
>
> Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
> ---
>   drivers/gpu/drm/i915/display/intel_psr.c | 6 +++++-
>   1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
> index 3b20325b3f6a..8981a180285e 100644
> --- a/drivers/gpu/drm/i915/display/intel_psr.c
> +++ b/drivers/gpu/drm/i915/display/intel_psr.c
> @@ -1451,7 +1451,11 @@ static bool intel_psr2_config_valid(struct intel_dp *intel_dp,
>   		return false;
>   	}
>   
> -	if (DISPLAY_VER(display) >= 12) {
> +	if (DISPLAY_VER(dev_priv) >= 30) {
> +		psr_max_h = 6144;
> +		psr_max_v = 4096;

As per Bspec:69885 from XE2LPD+ the max size for PSR2 is pipe active 
size, so psr_max_v should have been 4096 even earlier.

Perhaps need to change even for earlier platform.

Regards,

Ankit

> +		max_bpp = 30;
> +	} else if (DISPLAY_VER(dev_priv) >= 12) {
>   		psr_max_h = 5120;
>   		psr_max_v = 3200;
>   		max_bpp = 30;