1 #ifndef _RUNTIME_INSTR_H 2 #define _RUNTIME_INSTR_H 3 4 #define S390_RUNTIME_INSTR_START 0x1 5 #define S390_RUNTIME_INSTR_STOP 0x2 6 7 struct runtime_instr_cb { 8 __u64 buf_current; 9 __u64 buf_origin; 10 __u64 buf_limit; 11 12 __u32 valid : 1; 13 __u32 pstate : 1; 14 __u32 pstate_set_buf : 1; 15 __u32 home_space : 1; 16 __u32 altered : 1; 17 __u32 : 3; 18 __u32 pstate_sample : 1; 19 __u32 sstate_sample : 1; 20 __u32 pstate_collect : 1; 21 __u32 sstate_collect : 1; 22 __u32 : 1; 23 __u32 halted_int : 1; 24 __u32 int_requested : 1; 25 __u32 buffer_full_int : 1; 26 __u32 key : 4; 27 __u32 : 9; 28 __u32 rgs : 3; 29 30 __u32 mode : 4; 31 __u32 next : 1; 32 __u32 mae : 1; 33 __u32 : 2; 34 __u32 call_type_br : 1; 35 __u32 return_type_br : 1; 36 __u32 other_type_br : 1; 37 __u32 bc_other_type : 1; 38 __u32 emit : 1; 39 __u32 tx_abort : 1; 40 __u32 : 2; 41 __u32 bp_xn : 1; 42 __u32 bp_xt : 1; 43 __u32 bp_ti : 1; 44 __u32 bp_ni : 1; 45 __u32 suppr_y : 1; 46 __u32 suppr_z : 1; 47 48 __u32 dc_miss_extra : 1; 49 __u32 lat_lev_ignore : 1; 50 __u32 ic_lat_lev : 4; 51 __u32 dc_lat_lev : 4; 52 53 __u64 reserved1; 54 __u64 scaling_factor; 55 __u64 rsic; 56 __u64 reserved2; 57 } __packed __aligned(8); 58 59 extern struct runtime_instr_cb runtime_instr_empty_cb; 60 61 static inline void load_runtime_instr_cb(struct runtime_instr_cb *cb) 62 { 63 asm volatile(".insn rsy,0xeb0000000060,0,0,%0" /* LRIC */ 64 : : "Q" (*cb)); 65 } 66 67 static inline void store_runtime_instr_cb(struct runtime_instr_cb *cb) 68 { 69 asm volatile(".insn rsy,0xeb0000000061,0,0,%0" /* STRIC */ 70 : "=Q" (*cb) : : "cc"); 71 } 72 73 static inline void save_ri_cb(struct runtime_instr_cb *cb_prev) 74 { 75 #ifdef CONFIG_64BIT 76 if (cb_prev) 77 store_runtime_instr_cb(cb_prev); 78 #endif 79 } 80 81 static inline void restore_ri_cb(struct runtime_instr_cb *cb_next, 82 struct runtime_instr_cb *cb_prev) 83 { 84 #ifdef CONFIG_64BIT 85 if (cb_next) 86 load_runtime_instr_cb(cb_next); 87 else if (cb_prev) 88 load_runtime_instr_cb(&runtime_instr_empty_cb); 89 #endif 90 } 91 92 #ifdef CONFIG_64BIT 93 extern void exit_thread_runtime_instr(void); 94 #else 95 static inline void exit_thread_runtime_instr(void) { } 96 #endif 97 98 #endif /* _RUNTIME_INSTR_H */ 99