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/* SPDX-License-Identifier: MIT */
/* Copyright © 2025 Intel Corporation x*/
#ifndef __DISPLAY_PARENT_INTERFACE_H__
#define __DISPLAY_PARENT_INTERFACE_H__
#include <linux/types.h>
struct dma_fence;
struct drm_device;
struct intel_hdcp_gsc_context;
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_hdcp_interface {
ssize_t (*gsc_msg_send)(struct intel_hdcp_gsc_context *gsc_context,
void *msg_in, size_t msg_in_len,
void *msg_out, size_t msg_out_len);
bool (*gsc_check_status)(struct drm_device *drm);
struct intel_hdcp_gsc_context *(*gsc_context_alloc)(struct drm_device *drm);
void (*gsc_context_free)(struct intel_hdcp_gsc_context *gsc_context);
};
struct intel_display_irq_interface {
bool (*enabled)(struct drm_device *drm);
void (*synchronize)(struct drm_device *drm);
};
struct intel_display_rps_interface {
void (*boost_if_not_started)(struct dma_fence *fence);
void (*mark_interactive)(struct drm_device *drm, bool interactive);
void (*ilk_irq_handler)(struct drm_device *drm);
};
/**
* struct intel_display_parent_interface - services parent driver provides to display
*
* The parent, or core, driver provides a pointer to this structure to display
* driver when calling intel_display_device_probe(). The display driver uses it
* to access services provided by the parent driver. The structure may contain
* sub-struct pointers to group function pointers by functionality.
*
* All function and sub-struct pointers must be initialized and callable unless
* explicitly marked as "optional" below. The display driver will only NULL
* check the optional pointers.
*/
struct intel_display_parent_interface {
/** @hdcp: HDCP GSC interface */
const struct intel_display_hdcp_interface *hdcp;
/** @rpm: Runtime PM functions */
const struct intel_display_rpm_interface *rpm;
/** @irq: IRQ interface */
const struct intel_display_irq_interface *irq;
/** @rpm: RPS interface. Optional. */
const struct intel_display_rps_interface *rps;
/** @vgpu_active: Is vGPU active? Optional. */
bool (*vgpu_active)(struct drm_device *drm);
/** @has_fenced_regions: Support legacy fencing? Optional. */
bool (*has_fenced_regions)(struct drm_device *drm);
/** @fence_priority_display: Set display priority. Optional. */
void (*fence_priority_display)(struct dma_fence *fence);
};
#endif
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