| /* 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_ */ |
