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| author | Ingo Molnar <mingo@elte.hu> | 2008-07-18 22:50:34 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-18 22:50:34 +0200 |
| commit | a208f37a465e222218974ab20a31b42b7b4893b2 (patch) | |
| tree | 77c6acdd4be32024330a14f2618b814126ce7a20 /include/asm-s390/schid.h | |
| parent | 511d9d34183662aada3890883e860b151d707e22 (diff) | |
| parent | 5b664cb235e97afbf34db9c4d77f08ebd725335e (diff) | |
| download | talos-op-linux-a208f37a465e222218974ab20a31b42b7b4893b2.tar.gz talos-op-linux-a208f37a465e222218974ab20a31b42b7b4893b2.zip | |
Merge branch 'linus' into x86/x2apic
Diffstat (limited to 'include/asm-s390/schid.h')
| -rw-r--r-- | include/asm-s390/schid.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/asm-s390/schid.h b/include/asm-s390/schid.h new file mode 100644 index 000000000000..7bdc0fe15691 --- /dev/null +++ b/include/asm-s390/schid.h @@ -0,0 +1,31 @@ +#ifndef ASM_SCHID_H +#define ASM_SCHID_H + +struct subchannel_id { + __u32 cssid : 8; + __u32 : 4; + __u32 m : 1; + __u32 ssid : 2; + __u32 one : 1; + __u32 sch_no : 16; +} __attribute__ ((packed, aligned(4))); + +#ifdef __KERNEL__ + +/* Helper function for sane state of pre-allocated subchannel_id. */ +static inline void +init_subchannel_id(struct subchannel_id *schid) +{ + memset(schid, 0, sizeof(struct subchannel_id)); + schid->one = 1; +} + +static inline int +schid_equal(struct subchannel_id *schid1, struct subchannel_id *schid2) +{ + return !memcmp(schid1, schid2, sizeof(struct subchannel_id)); +} + +#endif /* __KERNEL__ */ + +#endif /* ASM_SCHID_H */ |
