[PATCH] drm/{i915, xe}/display: make pxp key check part of bo interface

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

Add intel_bo_key_check() next to intel_bo_is_protected() where it feels
like it belongs, and drop the extra pxp compat header.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
 drivers/gpu/drm/i915/display/intel_bo.c       |  6 ++++
 drivers/gpu/drm/i915/display/intel_bo.h       |  1 +
 .../drm/i915/display/skl_universal_plane.c    |  3 +-
 .../xe/compat-i915-headers/pxp/intel_pxp.h    | 29 -------------------
 drivers/gpu/drm/xe/display/intel_bo.c         |  8 ++++-
 5 files changed, 15 insertions(+), 32 deletions(-)
 delete mode 100644 drivers/gpu/drm/xe/compat-i915-headers/pxp/intel_pxp.h

diff --git a/drivers/gpu/drm/i915/display/intel_bo.c b/drivers/gpu/drm/i915/display/intel_bo.c
index f3687eb63467..8f372b33d48b 100644
--- a/drivers/gpu/drm/i915/display/intel_bo.c
+++ b/drivers/gpu/drm/i915/display/intel_bo.c
@@ -6,6 +6,7 @@
 #include "gem/i915_gem_mman.h"
 #include "gem/i915_gem_object.h"
 #include "gem/i915_gem_object_frontbuffer.h"
+#include "pxp/intel_pxp.h"
 #include "i915_debugfs.h"
 #include "intel_bo.h"
 
@@ -29,6 +30,11 @@ bool intel_bo_is_protected(struct drm_gem_object *obj)
 	return i915_gem_object_is_protected(to_intel_bo(obj));
 }
 
+int intel_bo_key_check(struct drm_gem_object *obj)
+{
+	return intel_pxp_key_check(obj, false);
+}
+
 int intel_bo_fb_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
 {
 	return i915_gem_fb_mmap(to_intel_bo(obj), vma);
diff --git a/drivers/gpu/drm/i915/display/intel_bo.h b/drivers/gpu/drm/i915/display/intel_bo.h
index fc05f680dc76..516a3836a6bc 100644
--- a/drivers/gpu/drm/i915/display/intel_bo.h
+++ b/drivers/gpu/drm/i915/display/intel_bo.h
@@ -16,6 +16,7 @@ bool intel_bo_is_tiled(struct drm_gem_object *obj);
 bool intel_bo_is_userptr(struct drm_gem_object *obj);
 bool intel_bo_is_shmem(struct drm_gem_object *obj);
 bool intel_bo_is_protected(struct drm_gem_object *obj);
+int intel_bo_key_check(struct drm_gem_object *obj);
 int intel_bo_fb_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
 int intel_bo_read_from_page(struct drm_gem_object *obj, u64 offset, void *dst, int size);
 
diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c
index 6880f9d89a4e..d38582af6b39 100644
--- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
+++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
@@ -9,7 +9,6 @@
 #include <drm/drm_fourcc.h>
 #include <drm/drm_print.h>
 
-#include "pxp/intel_pxp.h"
 #include "intel_bo.h"
 #include "intel_de.h"
 #include "intel_display_irq.h"
@@ -2290,7 +2289,7 @@ static void check_protection(struct intel_plane_state *plane_state)
 	if (DISPLAY_VER(display) < 11)
 		return;
 
-	plane_state->decrypt = intel_pxp_key_check(obj, false) == 0;
+	plane_state->decrypt = intel_bo_key_check(obj) == 0;
 	plane_state->force_black = intel_bo_is_protected(obj) &&
 		!plane_state->decrypt;
 }
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/pxp/intel_pxp.h b/drivers/gpu/drm/xe/compat-i915-headers/pxp/intel_pxp.h
deleted file mode 100644
index 97fd0ddf0b3a..000000000000
--- a/drivers/gpu/drm/xe/compat-i915-headers/pxp/intel_pxp.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/* SPDX-License-Identifier: MIT */
-/*
- * Copyright © 2023 Intel Corporation
- */
-
-#ifndef __INTEL_PXP_H__
-#define __INTEL_PXP_H__
-
-#include <linux/errno.h>
-#include <linux/types.h>
-
-#include "xe_pxp.h"
-
-struct drm_gem_object;
-
-static inline int intel_pxp_key_check(struct drm_gem_object *obj, bool assign)
-{
-	/*
-	 * The assign variable is used in i915 to assign the key to the BO at
-	 * first submission time. In Xe the key is instead assigned at BO
-	 * creation time, so the assign variable must always be false.
-	 */
-	if (assign)
-		return -EINVAL;
-
-	return xe_pxp_obj_key_check(obj);
-}
-
-#endif
diff --git a/drivers/gpu/drm/xe/display/intel_bo.c b/drivers/gpu/drm/xe/display/intel_bo.c
index bad2243b9114..e8049a255d21 100644
--- a/drivers/gpu/drm/xe/display/intel_bo.c
+++ b/drivers/gpu/drm/xe/display/intel_bo.c
@@ -3,9 +3,10 @@
 
 #include <drm/drm_gem.h>
 
-#include "xe_bo.h"
 #include "intel_bo.h"
 #include "intel_frontbuffer.h"
+#include "xe_bo.h"
+#include "xe_pxp.h"
 
 bool intel_bo_is_tiled(struct drm_gem_object *obj)
 {
@@ -29,6 +30,11 @@ bool intel_bo_is_protected(struct drm_gem_object *obj)
 	return xe_bo_is_protected(gem_to_xe_bo(obj));
 }
 
+int intel_bo_key_check(struct drm_gem_object *obj)
+{
+	return xe_pxp_obj_key_check(obj);
+}
+
 int intel_bo_fb_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
 {
 	return drm_gem_prime_mmap(obj, vma);
-- 
2.47.3