Commit 1914d686 authored by Jouni Högander's avatar Jouni Högander
Browse files

drm/{i915, xe}/display: Add display runtime pm parent interface 



We have differing implementations for display runtime pm in i915 and xe
drivers. Add struct of function pointers into display_parent_interface
which will contain used implementation of runtime pm.

v2:
  - add _interface suffix to rpm function pointer struct
  - add struct ref_tracker forward declaration
  - use kernel-doc comments

Reviewed-by: default avatarJani Nikula <jani.nikula@intel.com>
Signed-off-by: default avatarJouni Högander <jouni.hogander@intel.com>
Link: https://patch.msgid.link/20251030202836.1815680-3-jouni.hogander@intel.com
parent b3c8fa0d

include/drm/intel/display_parent_interface.h

+19 −0
Original line number Diff line number Diff line
@@ -7,6 +7,23 @@ 
#include <linux/types.h>



struct drm_device;

struct ref_tracker;



struct intel_display_rpm_interface {

	struct ref_tracker *(*get)(const struct drm_device *drm);

	struct ref_tracker *(*get_raw)(const struct drm_device *drm);

	struct ref_tracker *(*get_if_in_use)(const struct drm_device *drm);

	struct ref_tracker *(*get_noresume)(const struct drm_device *drm);



	void (*put)(const struct drm_device *drm, struct ref_tracker *wakeref);

	void (*put_raw)(const struct drm_device *drm, struct ref_tracker *wakeref);

	void (*put_unchecked)(const struct drm_device *drm);



	bool (*suspended)(const struct drm_device *drm);

	void (*assert_held)(const struct drm_device *drm);

	void (*assert_block)(const struct drm_device *drm);

	void (*assert_unblock)(const struct drm_device *drm);

};



/**

 * struct intel_display_parent_interface - services parent driver provides to display
@@ -21,6 +38,8 @@ struct drm_device; 
 * check the optional pointers.

 */

struct intel_display_parent_interface {

	/** @rpm: Runtime PM functions */

	const struct intel_display_rpm_interface *rpm;

};



#endif