Commit f3f6dbf7 authored by Jouni Högander's avatar Jouni Högander
Browse files

drm/xe/display: Runtime pm wrappers for display parent interface 



Implement runtime pm wrappers for xe driver and add them into display
parent interface.

v3:
  - drop useless include
  - drop xe_display_rpm_{get, put}_raw
v2:
  - move xe_display_rpm_interface code into xe_display_rpm.c
  - rename xe_rpm as xe_display_rpm

Reviewed-by: default avatarJani Nikula <jani.nikula@intel.com>
Signed-off-by: default avatarJouni Högander <jouni.hogander@intel.com>
Link: https://patch.msgid.link/20251030202836.1815680-5-jouni.hogander@intel.com
parent 5bef1bad

drivers/gpu/drm/xe/display/xe_display.c

+2 −0
Original line number Diff line number Diff line
@@ -35,6 +35,7 @@ 
#include "intel_hotplug.h"

#include "intel_opregion.h"

#include "skl_watermark.h"

#include "xe_display_rpm.h"

#include "xe_module.h"



/* Ensure drm and display members are placed properly. */
@@ -517,6 +518,7 @@ static void display_device_remove(struct drm_device *dev, void *arg) 
}



static const struct intel_display_parent_interface parent = {

	.rpm = &xe_display_rpm_interface,

};



/**

drivers/gpu/drm/xe/display/xe_display_rpm.c

+66 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: MIT

/* Copyright © 2025 Intel Corporation */



#include <drm/intel/display_parent_interface.h>



#include "intel_display_core.h"

#include "intel_display_rpm.h"

#include "xe_device.h"
@@ -71,3 +73,67 @@ void intel_display_rpm_assert_unblock(struct intel_display *display) 
{

	/* FIXME */

}



static struct ref_tracker *xe_display_rpm_get(const struct drm_device *drm)

{

	return xe_pm_runtime_resume_and_get(to_xe_device(drm)) ? INTEL_WAKEREF_DEF : NULL;

}



static struct ref_tracker *xe_display_rpm_get_if_in_use(const struct drm_device *drm)

{

	return xe_pm_runtime_get_if_in_use(to_xe_device(drm)) ? INTEL_WAKEREF_DEF : NULL;

}



static struct ref_tracker *xe_display_rpm_get_noresume(const struct drm_device *drm)

{

	xe_pm_runtime_get_noresume(to_xe_device(drm));



	return INTEL_WAKEREF_DEF;

}



static void xe_display_rpm_put(const struct drm_device *drm, struct ref_tracker *wakeref)

{

	if (wakeref)

		xe_pm_runtime_put(to_xe_device(drm));

}



static void xe_display_rpm_put_unchecked(const struct drm_device *drm)

{

	xe_pm_runtime_put(to_xe_device(drm));

}



static bool xe_display_rpm_suspended(const struct drm_device *drm)

{

	struct xe_device *xe = to_xe_device(drm);



	return pm_runtime_suspended(xe->drm.dev);

}



static void xe_display_rpm_assert_held(const struct drm_device *drm)

{

	/* FIXME */

}



static void xe_display_rpm_assert_block(const struct drm_device *drm)

{

	/* FIXME */

}



static void xe_display_rpm_assert_unblock(const struct drm_device *drm)

{

	/* FIXME */

}



const struct intel_display_rpm_interface xe_display_rpm_interface = {

	.get = xe_display_rpm_get,

	.get_raw = xe_display_rpm_get,

	.get_if_in_use = xe_display_rpm_get_if_in_use,

	.get_noresume = xe_display_rpm_get_noresume,

	.put = xe_display_rpm_put,

	.put_raw = xe_display_rpm_put,

	.put_unchecked = xe_display_rpm_put_unchecked,

	.suspended = xe_display_rpm_suspended,

	.assert_held = xe_display_rpm_assert_held,

	.assert_block = xe_display_rpm_assert_block,

	.assert_unblock = xe_display_rpm_assert_unblock

};

drivers/gpu/drm/xe/display/xe_display_rpm.h

0 → 100644
+11 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: MIT */

/*

 * Copyright © 2025 Intel Corporation

 */



#ifndef _XE_DISPLAY_RPM_H_

#define _XE_DISPLAY_RPM_H_



extern const struct intel_display_rpm_interface xe_display_rpm_interface;



#endif /* _XE_DISPLAY_RPM_H_ */