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| author |   Heiko Carstens <heiko.carstens@de.ibm.com> | 2016-05-14 10:46:33 +0200 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2016-06-13 15:58:13 +0200 |
| commit | 4ccccc522bd22ba8e272f95daca5ab92eb0387a0 (patch) | |
| tree | 67aa301b0fa76babfbf4d8f62f6a53bdfc8493d4 /arch/s390/include/asm/tlbflush.h | |
| parent | s390/keyboard: use memdup_user_nul() (diff) | |
| download | linux-dev-4ccccc522bd22ba8e272f95daca5ab92eb0387a0.tar.xz linux-dev-4ccccc522bd22ba8e272f95daca5ab92eb0387a0.zip | |
s390/pgtable: introduce and use generic csp inline asm
We have already two inline assemblies which make use of the csp
instruction. Since I need a third instance let's introduce a generic
inline assmebly which can be used by everyone.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/tlbflush.h')
| -rw-r--r-- | arch/s390/include/asm/tlbflush.h | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/arch/s390/include/asm/tlbflush.h b/arch/s390/include/asm/tlbflush.h index a2e6ef32e054..ac02a6c37a3e 100644 --- a/arch/s390/include/asm/tlbflush.h +++ b/arch/s390/include/asm/tlbflush.h @@ -5,6 +5,7 @@ #include <linux/sched.h> #include <asm/processor.h> #include <asm/pgalloc.h> +#include <asm/pgtable.h> /* * Flush all TLB entries on the local CPU. @@ -44,17 +45,9 @@ void smp_ptlb_all(void); */ static inline void __tlb_flush_global(void) { - register unsigned long reg2 asm("2"); - register unsigned long reg3 asm("3"); - register unsigned long reg4 asm("4"); - long dummy; - - dummy = 0; - reg2 = reg3 = 0; - reg4 = ((unsigned long) &dummy) + 1; - asm volatile( - " csp %0,%2" - : : "d" (reg2), "d" (reg3), "d" (reg4), "m" (dummy) : "cc" ); + unsigned int dummy = 0; + + csp(&dummy, 0, 0); } /* |