linux/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
 */

#define pr_fmt(fmt) …

#include <linux/debugfs.h>

#include <drm/drm_framebuffer.h>
#include <drm/drm_managed.h>

#include "dpu_encoder_phys.h"
#include "dpu_formats.h"
#include "dpu_hw_top.h"
#include "dpu_hw_wb.h"
#include "dpu_hw_lm.h"
#include "dpu_hw_merge3d.h"
#include "dpu_hw_interrupts.h"
#include "dpu_core_irq.h"
#include "dpu_vbif.h"
#include "dpu_crtc.h"
#include "disp/msm_disp_snapshot.h"

#define to_dpu_encoder_phys_wb(x) …

/**
 * dpu_encoder_phys_wb_is_master - report wb always as master encoder
 * @phys_enc:	Pointer to physical encoder
 */
static bool dpu_encoder_phys_wb_is_master(struct dpu_encoder_phys *phys_enc)
{ … }

static bool _dpu_encoder_phys_wb_clk_force_ctrl(struct dpu_hw_wb *wb,
						struct dpu_hw_mdp *mdp,
						bool enable, bool *forced_on)
{ … }

/**
 * dpu_encoder_phys_wb_set_ot_limit - set OT limit for writeback interface
 * @phys_enc:	Pointer to physical encoder
 */
static void dpu_encoder_phys_wb_set_ot_limit(
		struct dpu_encoder_phys *phys_enc)
{ … }

/**
 * dpu_encoder_phys_wb_set_qos_remap - set QoS remapper for writeback
 * @phys_enc:	Pointer to physical encoder
 */
static void dpu_encoder_phys_wb_set_qos_remap(
		struct dpu_encoder_phys *phys_enc)
{ … }

/**
 * dpu_encoder_phys_wb_set_qos - set QoS/danger/safe LUTs for writeback
 * @phys_enc:	Pointer to physical encoder
 */
static void dpu_encoder_phys_wb_set_qos(struct dpu_encoder_phys *phys_enc)
{ … }

/**
 * dpu_encoder_phys_wb_setup_fb - setup output framebuffer
 * @phys_enc:	Pointer to physical encoder
 * @fb:		Pointer to output framebuffer
 */
static void dpu_encoder_phys_wb_setup_fb(struct dpu_encoder_phys *phys_enc,
		struct drm_framebuffer *fb)
{ … }

/**
 * dpu_encoder_phys_wb_setup_ctl - setup wb pipeline for ctl path
 * @phys_enc:Pointer to physical encoder
 */
static void dpu_encoder_phys_wb_setup_ctl(struct dpu_encoder_phys *phys_enc)
{ … }

/**
 * _dpu_encoder_phys_wb_update_flush - flush hardware update
 * @phys_enc:	Pointer to physical encoder
 */
static void _dpu_encoder_phys_wb_update_flush(struct dpu_encoder_phys *phys_enc)
{ … }

/**
 * dpu_encoder_phys_wb_setup - setup writeback encoder
 * @phys_enc:	Pointer to physical encoder
 */
static void dpu_encoder_phys_wb_setup(
		struct dpu_encoder_phys *phys_enc)
{ … }

/**
 * dpu_encoder_phys_wb_done_irq - writeback interrupt handler
 * @arg:	Pointer to writeback encoder
 */
static void dpu_encoder_phys_wb_done_irq(void *arg)
{ … }

/**
 * dpu_encoder_phys_wb_irq_enable - irq control of WB
 * @phys:	Pointer to physical encoder
 */
static void dpu_encoder_phys_wb_irq_enable(struct dpu_encoder_phys *phys)
{ … }

/**
 * dpu_encoder_phys_wb_irq_disable - irq control of WB
 * @phys:	Pointer to physical encoder
 */
static void dpu_encoder_phys_wb_irq_disable(struct dpu_encoder_phys *phys)
{ … }

static void dpu_encoder_phys_wb_atomic_mode_set(
		struct dpu_encoder_phys *phys_enc,
		struct drm_crtc_state *crtc_state,
		struct drm_connector_state *conn_state)
{ … }

static void _dpu_encoder_phys_wb_handle_wbdone_timeout(
		struct dpu_encoder_phys *phys_enc)
{ … }

/**
 * dpu_encoder_phys_wb_wait_for_commit_done - wait until request is committed
 * @phys_enc:	Pointer to physical encoder
 */
static int dpu_encoder_phys_wb_wait_for_commit_done(
		struct dpu_encoder_phys *phys_enc)
{ … }

/**
 * dpu_encoder_phys_wb_prepare_for_kickoff - pre-kickoff processing
 * @phys_enc:	Pointer to physical encoder
 * Returns:	Zero on success
 */
static void dpu_encoder_phys_wb_prepare_for_kickoff(
		struct dpu_encoder_phys *phys_enc)
{ … }

/**
 * dpu_encoder_phys_wb_needs_single_flush - trigger flush processing
 * @phys_enc:	Pointer to physical encoder
 */
static bool dpu_encoder_phys_wb_needs_single_flush(struct dpu_encoder_phys *phys_enc)
{ … }

/**
 * dpu_encoder_phys_wb_handle_post_kickoff - post-kickoff processing
 * @phys_enc:	Pointer to physical encoder
 */
static void dpu_encoder_phys_wb_handle_post_kickoff(
		struct dpu_encoder_phys *phys_enc)
{ … }

/**
 * dpu_encoder_phys_wb_enable - enable writeback encoder
 * @phys_enc:	Pointer to physical encoder
 */
static void dpu_encoder_phys_wb_enable(struct dpu_encoder_phys *phys_enc)
{ … }
/**
 * dpu_encoder_phys_wb_disable - disable writeback encoder
 * @phys_enc:	Pointer to physical encoder
 */
static void dpu_encoder_phys_wb_disable(struct dpu_encoder_phys *phys_enc)
{ … }

static void dpu_encoder_phys_wb_prepare_wb_job(struct dpu_encoder_phys *phys_enc,
		struct drm_writeback_job *job)
{ … }

static void dpu_encoder_phys_wb_cleanup_wb_job(struct dpu_encoder_phys *phys_enc,
		struct drm_writeback_job *job)
{ … }

static bool dpu_encoder_phys_wb_is_valid_for_commit(struct dpu_encoder_phys *phys_enc)
{ … }

/**
 * dpu_encoder_phys_wb_init_ops - initialize writeback operations
 * @ops:	Pointer to encoder operation table
 */
static void dpu_encoder_phys_wb_init_ops(struct dpu_encoder_phys_ops *ops)
{ … }

/**
 * dpu_encoder_phys_wb_init - initialize writeback encoder
 * @dev:  Corresponding device for devres management
 * @p:	Pointer to init info structure with initialization params
 */
struct dpu_encoder_phys *dpu_encoder_phys_wb_init(struct drm_device *dev,
		struct dpu_enc_phys_init_params *p)
{ … }