drivers/gpu/drm/i915/intel_pm.h

/* SPDX-License-Identifier: MIT */
/*
 * Copyright © 2019 Intel Corporation
 */

#ifndef __INTEL_PM_H__
#define __INTEL_PM_H__

#include <linux/types.h>

#include "display/intel_bw.h"
#include "display/intel_display.h"
#include "display/intel_global_state.h"

#include "i915_drv.h"
#include "i915_reg.h"

struct drm_device;
struct drm_i915_private;
struct i915_request;
struct intel_atomic_state;
struct intel_crtc;
struct intel_crtc_state;
struct intel_plane;
struct skl_ddb_entry;
struct skl_pipe_wm;
struct skl_wm_level;

void intel_init_clock_gating(struct drm_i915_private *dev_priv);
void intel_suspend_hw(struct drm_i915_private *dev_priv);
int ilk_wm_max_level(const struct drm_i915_private *dev_priv);
void intel_update_watermarks(struct intel_crtc *crtc);
void intel_init_pm(struct drm_i915_private *dev_priv);
void intel_init_clock_gating_hooks(struct drm_i915_private *dev_priv);
void intel_pm_setup(struct drm_i915_private *dev_priv);
void g4x_wm_get_hw_state(struct drm_i915_private *dev_priv);
void vlv_wm_get_hw_state(struct drm_i915_private *dev_priv);
void ilk_wm_get_hw_state(struct drm_i915_private *dev_priv);
void skl_wm_get_hw_state(struct drm_i915_private *dev_priv);
u8 intel_enabled_dbuf_slices_mask(struct drm_i915_private *dev_priv);
void skl_pipe_ddb_get_hw_state(struct intel_crtc *crtc,
			       struct skl_ddb_entry *ddb_y,
			       struct skl_ddb_entry *ddb_uv);
void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv);
u32 skl_ddb_dbuf_slice_mask(struct drm_i915_private *dev_priv,
			    const struct skl_ddb_entry *entry);
void skl_pipe_wm_get_hw_state(struct intel_crtc *crtc,
			      struct skl_pipe_wm *out);
void g4x_wm_sanitize(struct drm_i915_private *dev_priv);
void vlv_wm_sanitize(struct drm_i915_private *dev_priv);
bool intel_can_enable_sagv(struct drm_i915_private *dev_priv,
			   const struct intel_bw_state *bw_state);
void intel_sagv_pre_plane_update(struct intel_atomic_state *state);
void intel_sagv_post_plane_update(struct intel_atomic_state *state);
const struct skl_wm_level *skl_plane_wm_level(const struct skl_pipe_wm *pipe_wm,
					      enum plane_id plane_id,
					      int level);
const struct skl_wm_level *skl_plane_trans_wm(const struct skl_pipe_wm *pipe_wm,
					      enum plane_id plane_id);
bool skl_wm_level_equals(const struct skl_wm_level *l1,
			 const struct skl_wm_level *l2);
bool skl_ddb_allocation_overlaps(const struct skl_ddb_entry *ddb,
				 const struct skl_ddb_entry *entries,
				 int num_entries, int ignore_idx);
void skl_write_plane_wm(struct intel_plane *plane,
			const struct intel_crtc_state *crtc_state);
void skl_write_cursor_wm(struct intel_plane *plane,
			 const struct intel_crtc_state *crtc_state);
bool ilk_disable_lp_wm(struct drm_i915_private *dev_priv);
void intel_init_ipc(struct drm_i915_private *dev_priv);
void intel_enable_ipc(struct drm_i915_private *dev_priv);

bool intel_set_memory_cxsr(struct drm_i915_private *dev_priv, bool enable);

struct intel_dbuf_state {
	struct intel_global_state base;

	struct skl_ddb_entry ddb[I915_MAX_PIPES];
	unsigned int weight[I915_MAX_PIPES];
	u8 slices[I915_MAX_PIPES];
	u8 enabled_slices;
	u8 active_pipes;
	bool joined_mbus;
};

struct intel_dbuf_state *
intel_atomic_get_dbuf_state(struct intel_atomic_state *state);

#define to_intel_dbuf_state(x) container_of((x), struct intel_dbuf_state, base)
#define intel_atomic_get_old_dbuf_state(state) \
	to_intel_dbuf_state(intel_atomic_get_old_global_obj_state(state, &to_i915(state->base.dev)->dbuf.obj))
#define intel_atomic_get_new_dbuf_state(state) \
	to_intel_dbuf_state(intel_atomic_get_new_global_obj_state(state, &to_i915(state->base.dev)->dbuf.obj))

int intel_dbuf_init(struct drm_i915_private *dev_priv);
void intel_dbuf_pre_plane_update(struct intel_atomic_state *state);
void intel_dbuf_post_plane_update(struct intel_atomic_state *state);

#endif /* __INTEL_PM_H__ */