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| author |   Heiko Carstens <heiko.carstens@de.ibm.com> | 2008-12-25 13:38:40 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-12-25 13:38:56 +0100 |
| commit | 320c04c068c62b71fe9ea55e06e4968b4edc9e48 (patch) | |
| tree | 8f98e0d681ecbc4141552289bb676c8f4ae8109a /arch | |
| parent | [S390] convert s390 to generic IPI infrastructure (diff) | |
| download | linux-dev-320c04c068c62b71fe9ea55e06e4968b4edc9e48.tar.xz linux-dev-320c04c068c62b71fe9ea55e06e4968b4edc9e48.zip | |
[S390] Move stfle to header file.
stfle will be needed by the ap_bus module to figure out wether the AP
queue adapter interruption facility is installed.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/s390/include/asm/system.h | 20 | ||||
| -rw-r--r-- | arch/s390/kernel/setup.c | 17 |
2 files changed, 18 insertions, 19 deletions
diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h index 819e7d99ca0c..c17a3cfbe242 100644 --- a/arch/s390/include/asm/system.h +++ b/arch/s390/include/asm/system.h @@ -12,6 +12,7 @@ #define __ASM_SYSTEM_H #include <linux/kernel.h> +#include <linux/errno.h> #include <asm/types.h> #include <asm/ptrace.h> #include <asm/setup.h> @@ -413,8 +414,6 @@ __set_psw_mask(unsigned long mask) #define local_mcck_enable() __set_psw_mask(psw_kernel_bits) #define local_mcck_disable() __set_psw_mask(psw_kernel_bits & ~PSW_MASK_MCHECK) -int stfle(unsigned long long *list, int doublewords); - #ifdef CONFIG_SMP extern void smp_ctl_set_bit(int cr, int bit); @@ -438,6 +437,23 @@ static inline unsigned int stfl(void) return S390_lowcore.stfl_fac_list; } +static inline int __stfle(unsigned long long *list, int doublewords) +{ + typedef struct { unsigned long long _[doublewords]; } addrtype; + register unsigned long __nr asm("0") = doublewords - 1; + + asm volatile(".insn s,0xb2b00000,%0" /* stfle */ + : "=m" (*(addrtype *) list), "+d" (__nr) : : "cc"); + return __nr + 1; +} + +static inline int stfle(unsigned long long *list, int doublewords) +{ + if (!(stfl() & (1UL << 24))) + return -EOPNOTSUPP; + return __stfle(list, doublewords); +} + static inline unsigned short stap(void) { unsigned short cpu_address; diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 400b040df7fa..a0d44bc0c389 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -651,23 +651,6 @@ setup_memory(void) #endif } -static int __init __stfle(unsigned long long *list, int doublewords) -{ - typedef struct { unsigned long long _[doublewords]; } addrtype; - register unsigned long __nr asm("0") = doublewords - 1; - - asm volatile(".insn s,0xb2b00000,%0" /* stfle */ - : "=m" (*(addrtype *) list), "+d" (__nr) : : "cc"); - return __nr + 1; -} - -int __init stfle(unsigned long long *list, int doublewords) -{ - if (!(stfl() & (1UL << 24))) - return -EOPNOTSUPP; - return __stfle(list, doublewords); -} - /* * Setup hardware capabilities. */ |