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73 lines
1.9 KiB
73 lines
1.9 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __ASM_SH_HW_BREAKPOINT_H |
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#define __ASM_SH_HW_BREAKPOINT_H |
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#include <uapi/asm/hw_breakpoint.h> |
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#define __ARCH_HW_BREAKPOINT_H |
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#include <linux/kdebug.h> |
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#include <linux/types.h> |
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struct arch_hw_breakpoint { |
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unsigned long address; |
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u16 len; |
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u16 type; |
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}; |
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enum { |
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SH_BREAKPOINT_READ = (1 << 1), |
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SH_BREAKPOINT_WRITE = (1 << 2), |
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SH_BREAKPOINT_RW = SH_BREAKPOINT_READ | SH_BREAKPOINT_WRITE, |
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SH_BREAKPOINT_LEN_1 = (1 << 12), |
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SH_BREAKPOINT_LEN_2 = (1 << 13), |
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SH_BREAKPOINT_LEN_4 = SH_BREAKPOINT_LEN_1 | SH_BREAKPOINT_LEN_2, |
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SH_BREAKPOINT_LEN_8 = (1 << 14), |
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}; |
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struct sh_ubc { |
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const char *name; |
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unsigned int num_events; |
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unsigned int trap_nr; |
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void (*enable)(struct arch_hw_breakpoint *, int); |
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void (*disable)(struct arch_hw_breakpoint *, int); |
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void (*enable_all)(unsigned long); |
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void (*disable_all)(void); |
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unsigned long (*active_mask)(void); |
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unsigned long (*triggered_mask)(void); |
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void (*clear_triggered_mask)(unsigned long); |
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struct clk *clk; /* optional interface clock / MSTP bit */ |
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}; |
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struct perf_event_attr; |
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struct perf_event; |
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struct task_struct; |
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struct pmu; |
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/* Maximum number of UBC channels */ |
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#define HBP_NUM 2 |
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static inline int hw_breakpoint_slots(int type) |
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{ |
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return HBP_NUM; |
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} |
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/* arch/sh/kernel/hw_breakpoint.c */ |
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extern int arch_check_bp_in_kernelspace(struct arch_hw_breakpoint *hw); |
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extern int hw_breakpoint_arch_parse(struct perf_event *bp, |
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const struct perf_event_attr *attr, |
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struct arch_hw_breakpoint *hw); |
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extern int hw_breakpoint_exceptions_notify(struct notifier_block *unused, |
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unsigned long val, void *data); |
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int arch_install_hw_breakpoint(struct perf_event *bp); |
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void arch_uninstall_hw_breakpoint(struct perf_event *bp); |
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void hw_breakpoint_pmu_read(struct perf_event *bp); |
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extern void arch_fill_perf_breakpoint(struct perf_event *bp); |
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extern int register_sh_ubc(struct sh_ubc *); |
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extern struct pmu perf_ops_bp; |
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#endif /* __ASM_SH_HW_BREAKPOINT_H */
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