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/* Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef DPU_DBG_H_
#define DPU_DBG_H_
#include <stdarg.h>
#include <linux/debugfs.h>
#include <linux/list.h>
enum dpu_dbg_dump_flag {
DPU_DBG_DUMP_IN_LOG = BIT(0),
DPU_DBG_DUMP_IN_MEM = BIT(1),
};
#if defined(CONFIG_DEBUG_FS)
/**
* dpu_dbg_init_dbg_buses - initialize debug bus dumping support for the chipset
* @hwversion: Chipset revision
*/
void dpu_dbg_init_dbg_buses(u32 hwversion);
/**
* dpu_dbg_init - initialize global dpu debug facilities: regdump
* @dev: device handle
* Returns: 0 or -ERROR
*/
int dpu_dbg_init(struct device *dev);
/**
* dpu_dbg_debugfs_register - register entries at the given debugfs dir
* @debugfs_root: debugfs root in which to create dpu debug entries
* Returns: 0 or -ERROR
*/
int dpu_dbg_debugfs_register(struct dentry *debugfs_root);
/**
* dpu_dbg_destroy - destroy the global dpu debug facilities
* Returns: none
*/
void dpu_dbg_destroy(void);
/**
* dpu_dbg_dump - trigger dumping of all dpu_dbg facilities
* @queue_work: whether to queue the dumping work to the work_struct
* @name: string indicating origin of dump
* @dump_dbgbus: dump the dpu debug bus
* @dump_vbif_rt: dump the vbif rt bus
* Returns: none
*/
void dpu_dbg_dump(bool queue_work, const char *name, bool dump_dbgbus_dpu,
bool dump_dbgbus_vbif_rt);
/**
* dpu_dbg_set_dpu_top_offset - set the target specific offset from mdss base
* address of the top registers. Used for accessing debug bus controls.
* @blk_off: offset from mdss base of the top block
*/
void dpu_dbg_set_dpu_top_offset(u32 blk_off);
#else
static inline void dpu_dbg_init_dbg_buses(u32 hwversion)
{
}
static inline int dpu_dbg_init(struct device *dev)
{
return 0;
}
static inline int dpu_dbg_debugfs_register(struct dentry *debugfs_root)
{
return 0;
}
static inline void dpu_dbg_destroy(void)
{
}
static inline void dpu_dbg_dump(bool queue_work, const char *name,
bool dump_dbgbus_dpu, bool dump_dbgbus_vbif_rt)
{
}
static inline void dpu_dbg_set_dpu_top_offset(u32 blk_off)
{
}
#endif /* defined(CONFIG_DEBUG_FS) */
#endif /* DPU_DBG_H_ */
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