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/* 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 */
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