| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _RUNTIME_INSTR_H |
| #define _RUNTIME_INSTR_H |
| |
| #define S390_RUNTIME_INSTR_START 0x1 |
| #define S390_RUNTIME_INSTR_STOP 0x2 |
| |
| struct runtime_instr_cb { |
| __u64 rca; |
| __u64 roa; |
| __u64 rla; |
| |
| __u32 v : 1; |
| __u32 s : 1; |
| __u32 k : 1; |
| __u32 h : 1; |
| __u32 a : 1; |
| __u32 reserved1 : 3; |
| __u32 ps : 1; |
| __u32 qs : 1; |
| __u32 pc : 1; |
| __u32 qc : 1; |
| __u32 reserved2 : 1; |
| __u32 g : 1; |
| __u32 u : 1; |
| __u32 l : 1; |
| __u32 key : 4; |
| __u32 reserved3 : 8; |
| __u32 t : 1; |
| __u32 rgs : 3; |
| |
| __u32 m : 4; |
| __u32 n : 1; |
| __u32 mae : 1; |
| __u32 reserved4 : 2; |
| __u32 c : 1; |
| __u32 r : 1; |
| __u32 b : 1; |
| __u32 j : 1; |
| __u32 e : 1; |
| __u32 x : 1; |
| __u32 reserved5 : 2; |
| __u32 bpxn : 1; |
| __u32 bpxt : 1; |
| __u32 bpti : 1; |
| __u32 bpni : 1; |
| __u32 reserved6 : 2; |
| |
| __u32 d : 1; |
| __u32 f : 1; |
| __u32 ic : 4; |
| __u32 dc : 4; |
| |
| __u64 reserved7; |
| __u64 sf; |
| __u64 rsic; |
| __u64 reserved8; |
| } __packed __aligned(8); |
| |
| extern struct runtime_instr_cb runtime_instr_empty_cb; |
| |
| static inline void load_runtime_instr_cb(struct runtime_instr_cb *cb) |
| { |
| asm volatile(".insn rsy,0xeb0000000060,0,0,%0" /* LRIC */ |
| : : "Q" (*cb)); |
| } |
| |
| static inline void store_runtime_instr_cb(struct runtime_instr_cb *cb) |
| { |
| asm volatile(".insn rsy,0xeb0000000061,0,0,%0" /* STRIC */ |
| : "=Q" (*cb) : : "cc"); |
| } |
| |
| static inline void save_ri_cb(struct runtime_instr_cb *cb_prev) |
| { |
| if (cb_prev) |
| store_runtime_instr_cb(cb_prev); |
| } |
| |
| static inline void restore_ri_cb(struct runtime_instr_cb *cb_next, |
| struct runtime_instr_cb *cb_prev) |
| { |
| if (cb_next) |
| load_runtime_instr_cb(cb_next); |
| else if (cb_prev) |
| load_runtime_instr_cb(&runtime_instr_empty_cb); |
| } |
| |
| struct task_struct; |
| |
| void runtime_instr_release(struct task_struct *tsk); |
| |
| #endif /* _RUNTIME_INSTR_H */ |
