Re: [PATCH v5 3/3] drm/i915/display: Add i915 hook for format_mod_supported_async

[Jani Nikula <jani.nikula@linux.intel.com>]

On Tue, 18 Feb 2025, Arun R Murthy <arun.r.murthy@intel.com> wrote:
> Hook up the newly added plane function pointer
> format_mod_supported_async to populate the modifiers/formats supported
> by asynchronous flips.
>
> v5: Correct the if condition for modifier support check (Chaitanya)
>
> Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com>
> Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
> Tested-by: Naveen Kumar <naveen1.kumar@intel.com>
> ---
>  drivers/gpu/drm/i915/display/skl_universal_plane.c | 56 ++++++++++++++++------
>  1 file changed, 41 insertions(+), 15 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c
> index cd9762947f1de227a3abbcd61b7c7b0c9848e439..e303ae6b1c6208755ea0454ba36efcff0c06cda6 100644
> --- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
> +++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
> @@ -509,6 +509,33 @@ skl_plane_max_stride(struct intel_plane *plane,
>  				modifier, rotation,
>  				max_pixels, max_bytes);
>  }
> +static bool intel_plane_async_formats(struct intel_plane *plane, uint32_t format)

Do not add new uint32_t etc. uses to i915. Use u32 etc. Ditto below.

> +{
> +	switch (format) {
> +	case DRM_FORMAT_RGB565:
> +	case DRM_FORMAT_XRGB8888:
> +	case DRM_FORMAT_XBGR8888:
> +	case DRM_FORMAT_ARGB8888:
> +	case DRM_FORMAT_ABGR8888:
> +	case DRM_FORMAT_XRGB2101010:
> +	case DRM_FORMAT_XBGR2101010:
> +	case DRM_FORMAT_XRGB16161616F:
> +	case DRM_FORMAT_XBGR16161616F:
> +		return true;
> +	default:
> +		return false;
> +	}
> +}
> +
> +static bool intel_plane_format_mod_supported_async(struct drm_plane *plane,
> +						   uint32_t format,
> +						   uint64_t modifier)
> +{
> +	if (!intel_plane_can_async_flip(to_intel_plane(plane), modifier))
> +		return false;
> +
> +	return intel_plane_async_formats(to_intel_plane(plane), format);
> +}
>  
>  static bool tgl_plane_can_async_flip(u64 modifier)
>  {
> @@ -2616,30 +2643,29 @@ static bool tgl_plane_format_mod_supported(struct drm_plane *_plane,
>  	}
>  }
>  
> +#define INTEL_PLANE_FUNCS \
> +	.update_plane = drm_atomic_helper_update_plane, \
> +	.disable_plane = drm_atomic_helper_disable_plane, \
> +	.destroy = intel_plane_destroy, \
> +	.atomic_duplicate_state = intel_plane_duplicate_state, \
> +	.atomic_destroy_state = intel_plane_destroy_state, \
> +	.format_mod_supported_async = intel_plane_format_mod_supported_async
> +
>  static const struct drm_plane_funcs skl_plane_funcs = {
> -	.update_plane = drm_atomic_helper_update_plane,
> -	.disable_plane = drm_atomic_helper_disable_plane,
> -	.destroy = intel_plane_destroy,
> -	.atomic_duplicate_state = intel_plane_duplicate_state,
> -	.atomic_destroy_state = intel_plane_destroy_state,
> +	INTEL_PLANE_FUNCS,
> +
>  	.format_mod_supported = skl_plane_format_mod_supported,
>  };
>  
>  static const struct drm_plane_funcs icl_plane_funcs = {
> -	.update_plane = drm_atomic_helper_update_plane,
> -	.disable_plane = drm_atomic_helper_disable_plane,
> -	.destroy = intel_plane_destroy,
> -	.atomic_duplicate_state = intel_plane_duplicate_state,
> -	.atomic_destroy_state = intel_plane_destroy_state,
> +	INTEL_PLANE_FUNCS,
> +
>  	.format_mod_supported = icl_plane_format_mod_supported,
>  };
>  
>  static const struct drm_plane_funcs tgl_plane_funcs = {
> -	.update_plane = drm_atomic_helper_update_plane,
> -	.disable_plane = drm_atomic_helper_disable_plane,
> -	.destroy = intel_plane_destroy,
> -	.atomic_duplicate_state = intel_plane_duplicate_state,
> -	.atomic_destroy_state = intel_plane_destroy_state,
> +	INTEL_PLANE_FUNCS,
> +
>  	.format_mod_supported = tgl_plane_format_mod_supported,
>  };

-- 
Jani Nikula, Intel