1 #ifndef __ASM_SH_HW_BREAKPOINT_H 2 #define __ASM_SH_HW_BREAKPOINT_H 3 4 #include <linux/kdebug.h> 5 #include <linux/types.h> 6 7 #ifdef __KERNEL__ 8 #define __ARCH_HW_BREAKPOINT_H 9 10 struct arch_hw_breakpoint { 11 char *name; /* Contains name of the symbol to set bkpt */ 12 unsigned long address; 13 u16 len; 14 u16 type; 15 }; 16 17 enum { 18 SH_BREAKPOINT_READ = (1 << 1), 19 SH_BREAKPOINT_WRITE = (1 << 2), 20 SH_BREAKPOINT_RW = SH_BREAKPOINT_READ | SH_BREAKPOINT_WRITE, 21 22 SH_BREAKPOINT_LEN_1 = (1 << 12), 23 SH_BREAKPOINT_LEN_2 = (1 << 13), 24 SH_BREAKPOINT_LEN_4 = SH_BREAKPOINT_LEN_1 | SH_BREAKPOINT_LEN_2, 25 SH_BREAKPOINT_LEN_8 = (1 << 14), 26 }; 27 28 struct sh_ubc { 29 const char *name; 30 unsigned int num_events; 31 unsigned int trap_nr; 32 void (*enable)(struct arch_hw_breakpoint *, int); 33 void (*disable)(struct arch_hw_breakpoint *, int); 34 void (*enable_all)(unsigned long); 35 void (*disable_all)(void); 36 unsigned long (*active_mask)(void); 37 unsigned long (*triggered_mask)(void); 38 void (*clear_triggered_mask)(unsigned long); 39 struct clk *clk; /* optional interface clock / MSTP bit */ 40 }; 41 42 struct perf_event; 43 struct task_struct; 44 struct pmu; 45 46 /* Maximum number of UBC channels */ 47 #define HBP_NUM 2 48 49 /* arch/sh/kernel/hw_breakpoint.c */ 50 extern int arch_check_va_in_userspace(unsigned long va, u16 hbp_len); 51 extern int arch_validate_hwbkpt_settings(struct perf_event *bp, 52 struct task_struct *tsk); 53 extern int hw_breakpoint_exceptions_notify(struct notifier_block *unused, 54 unsigned long val, void *data); 55 56 int arch_install_hw_breakpoint(struct perf_event *bp); 57 void arch_uninstall_hw_breakpoint(struct perf_event *bp); 58 void hw_breakpoint_pmu_read(struct perf_event *bp); 59 void hw_breakpoint_pmu_unthrottle(struct perf_event *bp); 60 61 extern void arch_fill_perf_breakpoint(struct perf_event *bp); 62 extern int register_sh_ubc(struct sh_ubc *); 63 64 extern struct pmu perf_ops_bp; 65 66 #endif /* __KERNEL__ */ 67 #endif /* __ASM_SH_HW_BREAKPOINT_H */ 68