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| author | Jeff Garzik <jeff@garzik.org> | 2006-09-23 02:10:23 +0200 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-09-23 02:10:23 +0200 |
| commit | 28eb177dfa5982d132edceed891cb3885df258bb (patch) | |
| tree | 5f8fdc37ad1d8d0793e9c47da7d908b97c814ffb /include/asm-powerpc/rtas.h | |
| parent | Merge branch 'upstream-fixes' into upstream (diff) | |
| parent | Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/rolan... (diff) | |
| download | linux-28eb177dfa5982d132edceed891cb3885df258bb.tar.xz linux-28eb177dfa5982d132edceed891cb3885df258bb.zip | |
Merge branch 'master' into upstream
Conflicts:
net/ieee80211/ieee80211_crypt_tkip.c
net/ieee80211/ieee80211_crypt_wep.c
Diffstat (limited to 'include/asm-powerpc/rtas.h')
| -rw-r--r-- | include/asm-powerpc/rtas.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/asm-powerpc/rtas.h b/include/asm-powerpc/rtas.h index 82a27e9a041f..d34f9e1f242c 100644 --- a/include/asm-powerpc/rtas.h +++ b/include/asm-powerpc/rtas.h @@ -230,5 +230,21 @@ extern unsigned long rtas_rmo_buf; #define GLOBAL_INTERRUPT_QUEUE 9005 +/** + * rtas_config_addr - Format a busno, devfn and reg for RTAS. + * @busno: The bus number. + * @devfn: The device and function number as encoded by PCI_DEVFN(). + * @reg: The register number. + * + * This function encodes the given busno, devfn and register number as + * required for RTAS calls that take a "config_addr" parameter. + * See PAPR requirement 7.3.4-1 for more info. + */ +static inline u32 rtas_config_addr(int busno, int devfn, int reg) +{ + return ((reg & 0xf00) << 20) | ((busno & 0xff) << 16) | + (devfn << 8) | (reg & 0xff); +} + #endif /* __KERNEL__ */ #endif /* _POWERPC_RTAS_H */ |