Commit 5bef1bad authored by Jouni Högander's avatar Jouni Högander
Browse files

drm/i915/display: Runtime pm wrappers for display parent interface 



Implement runtime pm wrappers for i915 driver and add them into display
parent interface.

v2:
  - move i915 display rpm interface implementation to intel_runtime_pm.c
  - rename intel_display as i915_display

Reviewed-by: default avatarJani Nikula <jani.nikula@intel.com>
Signed-off-by: default avatarJouni Högander <jouni.hogander@intel.com>
Link: https://patch.msgid.link/20251030202836.1815680-4-jouni.hogander@intel.com
parent 1914d686

drivers/gpu/drm/i915/i915_driver.c

+1 −0
Original line number Diff line number Diff line
@@ -740,6 +740,7 @@ static void i915_welcome_messages(struct drm_i915_private *dev_priv) 
}



static const struct intel_display_parent_interface parent = {

	.rpm = &i915_display_rpm_interface,

};



const struct intel_display_parent_interface *i915_driver_parent_interface(void)

drivers/gpu/drm/i915/intel_runtime_pm.c

+77 −0
Original line number Diff line number Diff line
@@ -29,6 +29,7 @@ 
#include <linux/pm_runtime.h>



#include <drm/drm_print.h>

#include <drm/intel/display_parent_interface.h>



#include "i915_drv.h"

#include "i915_trace.h"
@@ -177,6 +178,82 @@ static intel_wakeref_t __intel_runtime_pm_get(struct intel_runtime_pm *rpm, 
	return track_intel_runtime_pm_wakeref(rpm);

}



static struct intel_runtime_pm *drm_to_rpm(const struct drm_device *drm)

{

	struct drm_i915_private *i915 = to_i915(drm);



	return &i915->runtime_pm;

}



static struct ref_tracker *i915_display_rpm_get(const struct drm_device *drm)

{

	return intel_runtime_pm_get(drm_to_rpm(drm));

}



static struct ref_tracker *i915_display_rpm_get_raw(const struct drm_device *drm)

{

	return intel_runtime_pm_get_raw(drm_to_rpm(drm));

}



static struct ref_tracker *i915_display_rpm_get_if_in_use(const struct drm_device *drm)

{

	return intel_runtime_pm_get_if_in_use(drm_to_rpm(drm));

}



static struct ref_tracker *i915_display_rpm_get_noresume(const struct drm_device *drm)

{

	return intel_runtime_pm_get_noresume(drm_to_rpm(drm));

}



static void i915_display_rpm_put(const struct drm_device *drm, struct ref_tracker *wakeref)

{

	intel_runtime_pm_put(drm_to_rpm(drm), wakeref);

}



static void i915_display_rpm_put_raw(const struct drm_device *drm, struct ref_tracker *wakeref)

{

	intel_runtime_pm_put_raw(drm_to_rpm(drm), wakeref);

}



static void i915_display_rpm_put_unchecked(const struct drm_device *drm)

{

	intel_runtime_pm_put_unchecked(drm_to_rpm(drm));

}



static bool i915_display_rpm_suspended(const struct drm_device *drm)

{

	return intel_runtime_pm_suspended(drm_to_rpm(drm));

}



static void i915_display_rpm_assert_held(const struct drm_device *drm)

{

	assert_rpm_wakelock_held(drm_to_rpm(drm));

}



static void i915_display_rpm_assert_block(const struct drm_device *drm)

{

	disable_rpm_wakeref_asserts(drm_to_rpm(drm));

}



static void i915_display_rpm_assert_unblock(const struct drm_device *drm)

{

	enable_rpm_wakeref_asserts(drm_to_rpm(drm));

}



const struct intel_display_rpm_interface i915_display_rpm_interface = {

	.get = i915_display_rpm_get,

	.get_raw = i915_display_rpm_get_raw,

	.get_if_in_use = i915_display_rpm_get_if_in_use,

	.get_noresume = i915_display_rpm_get_noresume,

	.put = i915_display_rpm_put,

	.put_raw = i915_display_rpm_put_raw,

	.put_unchecked = i915_display_rpm_put_unchecked,

	.suspended = i915_display_rpm_suspended,

	.assert_held = i915_display_rpm_assert_held,

	.assert_block = i915_display_rpm_assert_block,

	.assert_unblock = i915_display_rpm_assert_unblock

};



/**

 * intel_runtime_pm_get_raw - grab a raw runtime pm reference

 * @rpm: the intel_runtime_pm structure

drivers/gpu/drm/i915/intel_runtime_pm.h

+3 −0
Original line number Diff line number Diff line
@@ -14,6 +14,7 @@ 
struct device;

struct drm_i915_private;

struct drm_printer;

struct intel_display_rpm_interface;



/*

 * This struct helps tracking the state needed for runtime PM, which puts the
@@ -226,4 +227,6 @@ static inline void print_intel_runtime_pm_wakeref(struct intel_runtime_pm *rpm, 
}

#endif



extern const struct intel_display_rpm_interface i915_display_rpm_interface;



#endif /* __INTEL_RUNTIME_PM_H__ */