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

// SPDX-License-Identifier: GPL-2.0-only
/* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
 */

#define pr_fmt(fmt) …

#include <linux/debugfs.h>
#include <linux/delay.h>

#include "dpu_vbif.h"
#include "dpu_hw_vbif.h"
#include "dpu_trace.h"

static struct dpu_hw_vbif *dpu_get_vbif(struct dpu_kms *dpu_kms, enum dpu_vbif vbif_idx)
{ … }

static const char *dpu_vbif_name(enum dpu_vbif idx)
{ … }

/**
 * _dpu_vbif_wait_for_xin_halt - wait for the xin to halt
 * @vbif:	Pointer to hardware vbif driver
 * @xin_id:	Client interface identifier
 * @return:	0 if success; error code otherwise
 */
static int _dpu_vbif_wait_for_xin_halt(struct dpu_hw_vbif *vbif, u32 xin_id)
{ … }

/**
 * _dpu_vbif_apply_dynamic_ot_limit - determine OT based on usecase parameters
 * @vbif:	Pointer to hardware vbif driver
 * @ot_lim:	Pointer to OT limit to be modified
 * @params:	Pointer to usecase parameters
 */
static void _dpu_vbif_apply_dynamic_ot_limit(struct dpu_hw_vbif *vbif,
		u32 *ot_lim, struct dpu_vbif_set_ot_params *params)
{ … }

/**
 * _dpu_vbif_get_ot_limit - get OT based on usecase & configuration parameters
 * @vbif:	Pointer to hardware vbif driver
 * @params:	Pointer to usecase parameters
 * @return:	OT limit
 */
static u32 _dpu_vbif_get_ot_limit(struct dpu_hw_vbif *vbif,
	struct dpu_vbif_set_ot_params *params)
{ … }

/**
 * dpu_vbif_set_ot_limit - set OT based on usecase & configuration parameters
 * @dpu_kms:	DPU handler
 * @params:	Pointer to usecase parameters
 *
 * Note this function would block waiting for bus halt.
 */
void dpu_vbif_set_ot_limit(struct dpu_kms *dpu_kms,
		struct dpu_vbif_set_ot_params *params)
{ … }

void dpu_vbif_set_qos_remap(struct dpu_kms *dpu_kms,
		struct dpu_vbif_set_qos_params *params)
{ … }

void dpu_vbif_clear_errors(struct dpu_kms *dpu_kms)
{ … }

void dpu_vbif_init_memtypes(struct dpu_kms *dpu_kms)
{ … }

#ifdef CONFIG_DEBUG_FS

void dpu_debugfs_vbif_init(struct dpu_kms *dpu_kms, struct dentry *debugfs_root)
{ … }
#endif