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| author |   Heiko Carstens <heiko.carstens@de.ibm.com> | 2008-04-17 07:46:11 +0200 |
|---|---|---|
| committer | Heiko Carstens <heiko.carstens@de.ibm.com> | 2008-04-17 07:47:01 +0200 |
| commit | 7b758389a29cb7f456ec2d27b7a08cb3cc4e1f1c (patch) | |
| tree | cd0c7a988815826cfabc2c90cd8539a7eb9f0c8c /arch/s390 | |
| parent | [S390] Add new fields for System z10 to /proc/sysinfo (diff) | |
| download | linux-dev-7b758389a29cb7f456ec2d27b7a08cb3cc4e1f1c.tar.xz linux-dev-7b758389a29cb7f456ec2d27b7a08cb3cc4e1f1c.zip | |
[S390] Export stfle.
Make stfle visible so other code can call this.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/kernel/setup.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 290e504061a3..d682ff135a1c 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -687,7 +687,7 @@ static __init unsigned int stfl(void) return S390_lowcore.stfl_fac_list; } -static __init int stfle(unsigned long long *list, int doublewords) +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; @@ -697,6 +697,13 @@ static __init int stfle(unsigned long long *list, int doublewords) 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. */ @@ -741,7 +748,7 @@ static void __init setup_hwcaps(void) * HWCAP_S390_DFP bit 6. */ if ((elf_hwcap & (1UL << 2)) && - stfle(&facility_list_extended, 1) > 0) { + __stfle(&facility_list_extended, 1) > 0) { if (facility_list_extended & (1ULL << (64 - 43))) elf_hwcap |= 1UL << 6; } |