[Intel-gfx] [PATCH v2 6/7] drm/i915/pxp: Make intel_pxp_key_check implicitly sort PXP-owning-GT

[Alan Previn]

Make intel_pxp_key_check implicitly find the PXP-owning-GT.
Callers of this function shall now pass in i915 since PXP
is a global GPU feature. Make intel_pxp_key_check implicitly
find the right gt to verify pxp session key establishment count
so it's transparent to the callers.

Signed-off-by: Alan Previn <alan.previn.teres.alexis at intel.com>
---
 drivers/gpu/drm/i915/display/skl_universal_plane.c |  2 +-
 drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c     |  2 +-
 drivers/gpu/drm/i915/pxp/intel_pxp.c               | 12 ++++++++++--
 drivers/gpu/drm/i915/pxp/intel_pxp.h               |  2 +-
 4 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c
index 7cb713043408..04e78acbaf5f 100644
--- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
+++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
@@ -1841,7 +1841,7 @@ 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(&to_gt(i915)->pxp, obj, false) == 0;
+	return intel_pxp_key_check(i915, obj, false) == 0;
 }
 
 static bool pxp_is_borked(struct drm_i915_gem_object *obj)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
index 8f5796cf9c9c..79fb8da1c646 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
@@ -868,7 +868,7 @@ static struct i915_vma *eb_lookup_vma(struct i915_execbuffer *eb, u32 handle)
 		 */
 		if (i915_gem_context_uses_protected_content(eb->gem_context) &&
 		    i915_gem_object_is_protected(obj)) {
-			err = intel_pxp_key_check(&vm->gt->pxp, obj, true);
+			err = intel_pxp_key_check(vm->gt->i915, obj, true);
 			if (err) {
 				i915_gem_object_put(obj);
 				return ERR_PTR(err);
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c b/drivers/gpu/drm/i915/pxp/intel_pxp.c
index 944c8466f786..148f9fbd907a 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c
@@ -300,11 +300,19 @@ void intel_pxp_fini_hw(struct intel_pxp *pxp)
 	intel_pxp_irq_disable(pxp);
 }
 
-int intel_pxp_key_check(struct intel_pxp *pxp,
+int intel_pxp_key_check(struct drm_i915_private *i915,
 			struct drm_i915_gem_object *obj,
 			bool assign)
 {
-	if (!intel_pxp_is_active(pxp_to_gt(pxp)->i915))
+	struct intel_gt *gt = intel_pxp_get_owning_gt(i915);
+	struct intel_pxp *pxp;
+
+	if (!gt)
+		return -ENODEV;
+
+	pxp = &gt->pxp;
+
+	if (!intel_pxp_is_active(i915))
 		return -ENODEV;
 
 	if (!i915_gem_object_is_protected(obj))
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.h b/drivers/gpu/drm/i915/pxp/intel_pxp.h
index 61ef3bedc3a0..94fec55389df 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp.h
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp.h
@@ -28,7 +28,7 @@ void intel_pxp_mark_termination_in_progress(struct intel_pxp *pxp);
 
 int intel_pxp_start(struct drm_i915_private *i915);
 
-int intel_pxp_key_check(struct intel_pxp *pxp,
+int intel_pxp_key_check(struct drm_i915_private *i915,
 			struct drm_i915_gem_object *obj,
 			bool assign);
 
-- 
2.34.1