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android/drivers/misc/mediatek/systracker/systracker_v2.h
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threeeye bc1d038eac REVVL 6 Pro kernel bring-up: full working tree snapshot (2026-09-12) 
Squashed backup commit (no shallow-clone history issues) of
xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream
commit 9eece662e) plus all fixes applied to get everpal_defconfig building
clean against a modern (GCC 15.2.0) toolchain -- see the previous commit
message on the lineage-23.2 branch (also in this repo history is not
available here since this is a squashed snapshot; full incremental history
lives in the local DL380 checkout and the upstream GitHub remote).

Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
2026-09-12 13:36:46 +00:00

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/*
* Copyright (C) 2015 MediaTek Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License 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 _SYSTRAKCER_H
#define _SYSTRAKCER_H
#include <linux/platform_device.h>
#define BUS_DBG_CON (BUS_DBG_BASE)
#define BUS_DBG_CON_INFRA (BUS_DBG_INFRA_BASE)
#define BUS_DBG_TIMER_CON0 (BUS_DBG_BASE + 0x0004)
#define BUS_DBG_TIMER_CON1 (BUS_DBG_BASE + 0x0008)
#define BUS_DBG_TIMER_R0 (BUS_DBG_BASE + 0x000C)
#define BUS_DBG_TIMER_R1 (BUS_DBG_BASE + 0x0010)
#define BUS_DBG_WP (BUS_DBG_BASE + 0x0014)
#define BUS_DBG_WP_MASK (BUS_DBG_BASE + 0x0018)
#define BUS_DBG_MON (BUS_DBG_BASE + 0x001C)
#define BUS_DBG_W_TRACK_DATA_VALID (BUS_DBG_BASE + 0x0020)
#define BUS_DBG_AR_TRACK_L(__n) (BUS_DBG_BASE + 0x0100 + 8 * (__n))
#define BUS_DBG_AR_TRACK_H(__n) (BUS_DBG_BASE + 0x0104 + 8 * (__n))
#define BUS_DBG_AR_TRANS_TID(__n) (BUS_DBG_BASE + 0x0180 + 4 * (__n))
#define BUS_DBG_AW_TRACK_L(__n) (BUS_DBG_BASE + 0x0200 + 8 * (__n))
#define BUS_DBG_AW_TRACK_H(__n) (BUS_DBG_BASE + 0x0204 + 8 * (__n))
#define BUS_DBG_AW_TRANS_TID(__n) (BUS_DBG_BASE + 0x0280 + 4 * (__n))
#define BUS_DBG_W_TRACK_DATA6 (BUS_DBG_BASE + 0x02D8)
#define BUS_DBG_W_TRACK_DATA7 (BUS_DBG_BASE + 0x02DC)
#if defined(CONFIG_MACH_MT6758)
#define BUS_DBG_BUS_MHZ (135)
#elif defined(CONFIG_MACH_MT6765) || defined(CONFIG_MACH_MT6761)
#define BUS_DBG_BUS_MHZ (156)
#elif defined(CONFIG_MACH_MT6785) || defined(CONFIG_MACH_MT6885) || \
defined(CONFIG_MACH_MT6873) || defined(CONFIG_MACH_MT6853) || \
defined(CONFIG_MACH_MT6893) || defined(CONFIG_MACH_MT6833)
#define BUS_DBG_BUS_MHZ (156)
#elif defined(CONFIG_MACH_MT6779)
#define BUS_DBG_BUS_MHZ (273)
#else
#define BUS_DBG_BUS_MHZ (266)
#endif
#define BUS_DBG_NUM_TRACKER (8)
#define BUS_DBG_CON_BUS_DBG_EN (0x00000001)
#define BUS_DBG_CON_TIMEOUT_EN (0x00000002)
#define BUS_DBG_CON_SLV_ERR_EN (0x00000004)
#define BUS_DBG_CON_WP_EN (0x00000108)
#define BUS_DBG_CON_IRQ_AR_EN (0x00000010)
#define BUS_DBG_CON_IRQ_AW_EN (0x00000020)
#define BUS_DBG_CON_SW_RST_DN (0x00000040)
/* more human-readable register name than above one */
#define BUS_DBG_CON_IRQ_WP_EN (0x00000040)
#define BUS_DBG_CON_IRQ_CLR (0x00000080)
#define BUS_DBG_CON_IRQ_AR_STA0 (0x00000100)
#define BUS_DBG_CON_IRQ_AW_STA0 (0x00000200)
#define BUS_DBG_CON_IRQ_WP_STA (0x00000400)
#define BUS_DBG_CON_IRQ_WP_RD_STA (0x00000800)
#define BUS_DBG_CON_WDT_RST_EN (0x00001000)
#define BUS_DBG_CON_HALT_ON_EN (0x00002000)
#define BUS_DBG_CON_BUS_OT_EN (0x00004000)
#define BUS_DBG_CON_WSLV_ERR_EN (0x00008000)
#define BUS_DBG_CON_SW_RST (0x00010000)
#define BUS_DBG_CON_IRQ_AR_STA1 (0x00100000)
#define BUS_DBG_CON_IRQ_AW_STA1 (0x00200000)
#define BUS_DBG_CON_TIMEOUT_CLR (0x00800000)
#define BUS_DBG_CON_RESP_MON_EN (0x00010000)
#define BUS_DBG_CON_RESP_UNMASK (0x01000000)
/* detect all stages of timeout */
#define BUS_DBG_CON_TIMEOUT \
(BUS_DBG_CON_IRQ_AR_STA0|BUS_DBG_CON_IRQ_AW_STA0| \
BUS_DBG_CON_IRQ_AR_STA1|BUS_DBG_CON_IRQ_AW_STA1)
#define BUS_DBG_CON_IRQ_EN \
(BUS_DBG_CON_IRQ_AR_EN | BUS_DBG_CON_IRQ_AW_EN | \
BUS_DBG_CON_IRQ_WP_EN)
#define BUS_DBG_MAX_TIMEOUT_VAL (0xffffffff)
static inline unsigned int extract_n2mbits(unsigned int input, int n, int m)
{
/*
* 1. ~0 = 1111 1111 1111 1111 1111 1111 1111 1111
* 2. ~0 << (m - n + 1) = 1111 1111 1111 1111 1100 0000 0000 0000
* // assuming we are extracting 14 bits, the +1 is added
* for inclusive selection
* 3. ~(~0 << (m - n + 1)) = 0000 0000 0000 0000 0011 1111 1111 1111
*/
int mask;
if (n > m) {
n = n + m;
m = n - m;
n = n - m;
}
mask = ~(~0 << (m - n + 1));
return ((input >> n) & mask);
}
struct mt_systracker_driver {
struct platform_driver driver;
struct platform_device device;
u32 support_2_stage_timeout;
void (*reset_systracker)(void);
int (*enable_watchpoint)(void);
int (*disable_watchpoint)(void);
int (*set_watchpoint_address)(unsigned int wp_phy_address);
void (*enable_systracker)(void);
void (*disable_systracker)(void);
int (*test_systracker)(void);
int (*systracker_probe)(struct platform_device *pdev);
unsigned int (*systracker_timeout_value)(void);
unsigned int (*systracker_timeout2_value)(void);
int (*systracker_remove)(struct platform_device *pdev);
int (*systracker_suspend)(struct platform_device *pdev,
pm_message_t state);
int (*systracker_resume)(struct platform_device *pdev);
int (*systracker_hook_fault)(void);
int (*systracker_test_init)(void);
void (*systracker_test_cleanup)(void);
void (*systracker_wp_test)(void);
void (*systracker_read_timeout_test)(void);
void (*systracker_write_timeout_test)(void);
void (*systracker_withrecord_test)(void);
void (*systracker_notimeout_test)(void);
};
struct systracker_entry_t {
unsigned int dbg_con;
unsigned int dbg_con_infra;
unsigned int ar_track_l[BUS_DBG_NUM_TRACKER];
unsigned int ar_track_h[BUS_DBG_NUM_TRACKER];
unsigned int ar_trans_tid[BUS_DBG_NUM_TRACKER];
unsigned int aw_track_l[BUS_DBG_NUM_TRACKER];
unsigned int aw_track_h[BUS_DBG_NUM_TRACKER];
unsigned int aw_trans_tid[BUS_DBG_NUM_TRACKER];
unsigned int w_track_data6;
unsigned int w_track_data7;
unsigned int w_track_data_valid;
};
struct systracker_config_t {
int state;
int enable_timeout;
int enable_slave_err;
int enable_wp;
int enable_irq;
int enable_resp_mon;
int enable_resp_unmask;
int timeout_ms;
int timeout2_ms;
int wp_phy_address;
int wp_phy_mask;
};
extern int tracker_dump(char *buf);
extern void dump_backtrace_entry_ramconsole_print
(unsigned long where, unsigned long from, unsigned long frame);
extern void dump_regs
(const char *fmt, const char v1, const unsigned int reg,
const unsigned int reg_val);
extern struct mt_systracker_driver *get_mt_systracker_drv(void);
extern void __iomem *BUS_DBG_BASE;
extern void __iomem *BUS_DBG_INFRA_BASE;
extern void __iomem *BUS_DBG_CON_REG;
extern void __iomem *BUS_PROTECT_BASE;
extern int systracker_irq;
extern struct systracker_config_t track_config;
extern struct systracker_entry_t track_entry;
extern unsigned int is_systracker_irq_registered;
extern void save_entry(void);
extern void aee_dump_backtrace(struct pt_regs *regs, struct task_struct *tsk);
extern irqreturn_t systracker_isr(void);
extern int systracker_watchpoint_enable(void);
extern int systracker_set_watchpoint_mask(unsigned int mask);
extern int systracker_set_watchpoint_addr(unsigned int phy_addr);
extern void systracker_reset(void);
extern void systracker_enable(void);
extern void systracker_disable(void);
extern int systracker_handler
(unsigned long addr, unsigned int fsr, struct pt_regs *regs);
extern int systracker_probe(struct platform_device *pdev);
extern int systracker_remove(struct platform_device *pdev);
extern int systracker_suspend
(struct platform_device *pdev, pm_message_t state);
extern int systracker_resume(struct platform_device *pdev);
extern void systracker_reset(void);
extern void systracker_enable(void);
extern void systracker_test_cleanup(void);
extern int systracker_watchpoint_disable(void);
extern int systracker_watchpoint_enable(void);
extern void consys_print
(unsigned long long time_stamp, unsigned int cpu, unsigned int t);
extern int MTKPowerStatus(void);
//#define SYSTRACKER_TEST_SUIT /* enable for driver poring test suit */
/* #define TRACKER_DEBUG 0 */
#endif
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