forked from Minki/linux
99 lines
2.0 KiB
C
99 lines
2.0 KiB
C
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#ifndef _RUNTIME_INSTR_H
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#define _RUNTIME_INSTR_H
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#define S390_RUNTIME_INSTR_START 0x1
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#define S390_RUNTIME_INSTR_STOP 0x2
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struct runtime_instr_cb {
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__u64 buf_current;
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__u64 buf_origin;
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__u64 buf_limit;
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__u32 valid : 1;
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__u32 pstate : 1;
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__u32 pstate_set_buf : 1;
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__u32 home_space : 1;
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__u32 altered : 1;
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__u32 : 3;
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__u32 pstate_sample : 1;
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__u32 sstate_sample : 1;
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__u32 pstate_collect : 1;
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__u32 sstate_collect : 1;
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__u32 : 1;
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__u32 halted_int : 1;
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__u32 int_requested : 1;
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__u32 buffer_full_int : 1;
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__u32 key : 4;
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__u32 : 9;
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__u32 rgs : 3;
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__u32 mode : 4;
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__u32 next : 1;
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__u32 mae : 1;
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__u32 : 2;
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__u32 call_type_br : 1;
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__u32 return_type_br : 1;
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__u32 other_type_br : 1;
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__u32 bc_other_type : 1;
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__u32 emit : 1;
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__u32 tx_abort : 1;
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__u32 : 2;
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__u32 bp_xn : 1;
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__u32 bp_xt : 1;
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__u32 bp_ti : 1;
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__u32 bp_ni : 1;
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__u32 suppr_y : 1;
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__u32 suppr_z : 1;
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__u32 dc_miss_extra : 1;
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__u32 lat_lev_ignore : 1;
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__u32 ic_lat_lev : 4;
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__u32 dc_lat_lev : 4;
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__u64 reserved1;
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__u64 scaling_factor;
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__u64 rsic;
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__u64 reserved2;
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} __packed __aligned(8);
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extern struct runtime_instr_cb runtime_instr_empty_cb;
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static inline void load_runtime_instr_cb(struct runtime_instr_cb *cb)
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{
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asm volatile(".insn rsy,0xeb0000000060,0,0,%0" /* LRIC */
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: : "Q" (*cb));
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}
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static inline void store_runtime_instr_cb(struct runtime_instr_cb *cb)
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{
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asm volatile(".insn rsy,0xeb0000000061,0,0,%0" /* STRIC */
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: "=Q" (*cb) : : "cc");
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}
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static inline void save_ri_cb(struct runtime_instr_cb *cb_prev)
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{
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#ifdef CONFIG_64BIT
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if (cb_prev)
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store_runtime_instr_cb(cb_prev);
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#endif
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}
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static inline void restore_ri_cb(struct runtime_instr_cb *cb_next,
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struct runtime_instr_cb *cb_prev)
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{
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#ifdef CONFIG_64BIT
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if (cb_next)
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load_runtime_instr_cb(cb_next);
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else if (cb_prev)
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load_runtime_instr_cb(&runtime_instr_empty_cb);
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#endif
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}
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#ifdef CONFIG_64BIT
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extern void exit_thread_runtime_instr(void);
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#else
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static inline void exit_thread_runtime_instr(void) { }
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#endif
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#endif /* _RUNTIME_INSTR_H */
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