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s390/runtime instrumentation: provide uapi header file
The man page for the s390_runtime_instr() system call refers to a header file that was never exported. Therefore it's time to finally provide the header file, and move large parts of the runtime instrumentation header file to a new uapi header file. Reported-by: Eugene Syromyatnikov <evgsyr@gmail.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Heiko Carstens
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Martin Schwidefsky
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Feb 2, 2018
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ | ||
| #ifndef _S390_UAPI_RUNTIME_INSTR_H | ||
| #define _S390_UAPI_RUNTIME_INSTR_H | ||
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| #include <linux/types.h> | ||
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| #define S390_RUNTIME_INSTR_START 0x1 | ||
| #define S390_RUNTIME_INSTR_STOP 0x2 | ||
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| struct runtime_instr_cb { | ||
| __u64 rca; | ||
| __u64 roa; | ||
| __u64 rla; | ||
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| __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; | ||
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| __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; | ||
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| __u32 d : 1; | ||
| __u32 f : 1; | ||
| __u32 ic : 4; | ||
| __u32 dc : 4; | ||
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| __u64 reserved7; | ||
| __u64 sf; | ||
| __u64 rsic; | ||
| __u64 reserved8; | ||
| } __packed __aligned(8); | ||
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| static inline void load_runtime_instr_cb(struct runtime_instr_cb *cb) | ||
| { | ||
| asm volatile(".insn rsy,0xeb0000000060,0,0,%0" /* LRIC */ | ||
| : : "Q" (*cb)); | ||
| } | ||
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| static inline void store_runtime_instr_cb(struct runtime_instr_cb *cb) | ||
| { | ||
| asm volatile(".insn rsy,0xeb0000000061,0,0,%0" /* STRIC */ | ||
| : "=Q" (*cb) : : "cc"); | ||
| } | ||
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| #endif /* _S390_UAPI_RUNTIME_INSTR_H */ |