[PATCH] drm/xe: Revert "drm/i915: Disable DSB in Xe KMD"

[Maarten Lankhorst]

Hello,

I've been trying out this patch, but I'm still seeing corruption on my laptop with DSB enabled.
I'd recommend not merging until it is fixed. :)

Cheers,
~Maarten

Den 2024-07-08 kl. 07:56, skrev Animesh Manna:
> This reverts commit c27f010aa1884276ee5dae72034d84987060c769.
> 
> After fix from [1] dsb timeout issue is not reproducible on local testing
> with xe driver. Checking CI result to confirm and not for review.
> 
> [1] https://patchwork.freedesktop.org/series/130783/
> 
> Signed-off-by: Animesh Manna <animesh.manna at intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_dsb.c | 4 ----
>  1 file changed, 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dsb.c b/drivers/gpu/drm/i915/display/intel_dsb.c
> index 2ab3765f6c06..e9c4835a2c30 100644
> --- a/drivers/gpu/drm/i915/display/intel_dsb.c
> +++ b/drivers/gpu/drm/i915/display/intel_dsb.c
> @@ -463,10 +463,6 @@ struct intel_dsb *intel_dsb_prepare(struct intel_atomic_state *state,
>  	if (!i915->display.params.enable_dsb)
>  		return NULL;
>  
> -	/* TODO: DSB is broken in Xe KMD, so disabling it until fixed */
> -	if (!IS_ENABLED(I915))
> -		return NULL;
> -
>  	dsb = kzalloc(sizeof(*dsb), GFP_KERNEL);
>  	if (!dsb)
>  		goto out;