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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2015-10-12 11:54:03 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-10-27 09:33:44 +0100 |
| commit | ecbafda85371a3d85814aab8ff080a19e4d98b36 (patch) | |
| tree | feb1fae346967b3d5c6b41a20b930131be3ab193 /arch/s390 | |
| parent | s390/fpu: split fpu-internal.h into fpu internals, api, and type headers (diff) | |
| download | linux-ecbafda85371a3d85814aab8ff080a19e4d98b36.tar.xz linux-ecbafda85371a3d85814aab8ff080a19e4d98b36.zip | |
s390: get rid of __set_psw_mask()
With the removal of 31 bit code we can always assume that the epsw
instruction is available. Therefore use the __extract_psw() function
to disable and enable machine checks.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/processor.h | 27 |
1 files changed, 11 insertions, 16 deletions
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index a83015e17f39..07e6b0389502 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -224,7 +224,7 @@ static inline void __load_psw(psw_t psw) * Set PSW mask to specified value, while leaving the * PSW addr pointing to the next instruction. */ -static inline void __load_psw_mask (unsigned long mask) +static inline void __load_psw_mask(unsigned long mask) { unsigned long addr; psw_t psw; @@ -250,6 +250,16 @@ static inline unsigned long __extract_psw(void) return (((unsigned long) reg1) << 32) | ((unsigned long) reg2); } +static inline void local_mcck_enable(void) +{ + __load_psw_mask(__extract_psw() | PSW_MASK_MCHECK); +} + +static inline void local_mcck_disable(void) +{ + __load_psw_mask(__extract_psw() & ~PSW_MASK_MCHECK); +} + /* * Rewind PSW instruction address by specified number of bytes. */ @@ -318,21 +328,6 @@ static inline void __noreturn disabled_wait(unsigned long code) } /* - * Use to set psw mask except for the first byte which - * won't be changed by this function. - */ -static inline void -__set_psw_mask(unsigned long mask) -{ - __load_psw_mask(mask | (arch_local_save_flags() & ~(-1UL >> 8))); -} - -#define local_mcck_enable() \ - __set_psw_mask(PSW_KERNEL_BITS | PSW_MASK_DAT | PSW_MASK_MCHECK) -#define local_mcck_disable() \ - __set_psw_mask(PSW_KERNEL_BITS | PSW_MASK_DAT) - -/* * Basic Machine Check/Program Check Handler. */ |