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