[Intel-gfx] [PATCH 2/2] drm/i915: remove excess functions from plane protection check

[Kandpal, Suraj]

> -----Original Message-----
> From: Intel-gfx <intel-gfx-bounces at lists.freedesktop.org> On Behalf Of Jani
> Nikula
> Sent: Thursday, November 9, 2023 9:37 PM
> To: intel-gfx at lists.freedesktop.org
> Cc: Nikula, Jani <jani.nikula at intel.com>
> Subject: [Intel-gfx] [PATCH 2/2] drm/i915: remove excess functions from plane
> protection check
> 
> Reduce the function calls by reusing ->decrypt.
> 
> Signed-off-by: Jani Nikula <jani.nikula at intel.com>

LGTM.

Reviewed-by: Suraj Kandpal <suraj.kandpal at intel.com>

> ---
>  .../gpu/drm/i915/display/skl_universal_plane.c | 18 ++++--------------
>  1 file changed, 4 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c
> b/drivers/gpu/drm/i915/display/skl_universal_plane.c
> index 98acf25a5ca3..39499a0ec6c0 100644
> --- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
> +++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
> @@ -1854,29 +1854,19 @@ static bool skl_fb_scalable(const struct
> drm_framebuffer *fb)
>  	}
>  }
> 
> -static bool bo_has_valid_encryption(struct drm_i915_gem_object *obj) -{
> -	struct drm_i915_private *i915 = to_i915(obj->base.dev);
> -
> -	return intel_pxp_key_check(i915->pxp, obj, false) == 0;
> -}
> -
> -static bool pxp_is_borked(struct drm_i915_gem_object *obj) -{
> -	return i915_gem_object_is_protected(obj) &&
> !bo_has_valid_encryption(obj);
> -}
> -
>  static void check_protection(struct intel_plane_state *plane_state)  {
>  	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
>  	struct drm_i915_private *i915 = to_i915(plane->base.dev);
>  	const struct drm_framebuffer *fb = plane_state->hw.fb;
> +	struct drm_i915_gem_object *obj = intel_fb_obj(fb);
> 
>  	if (DISPLAY_VER(i915) < 11)
>  		return;
> 
> -	plane_state->decrypt = bo_has_valid_encryption(intel_fb_obj(fb));
> -	plane_state->force_black = pxp_is_borked(intel_fb_obj(fb));
> +	plane_state->decrypt = intel_pxp_key_check(i915->pxp, obj, false) == 0;
> +	plane_state->force_black = i915_gem_object_is_protected(obj) &&
> +		!plane_state->decrypt;
>  }
> 
>  static int skl_plane_check(struct intel_crtc_state *crtc_state,
> --
> 2.39.2