From 25097bf153391f7be4c591d47061b3dc4990dac2 Mon Sep 17 00:00:00 2001 From: Christian Ehrhardt Date: Tue, 14 Apr 2009 15:36:16 +0200 Subject: [S390] s390: move machine flags to lowcore Currently the storage of the machine flags is a globally exported unsigned long long variable. By moving the storage location into the lowcore struct we allow assembler code to check machine_flags directly even without needing a register. Addtionally the lowcore and therefore the machine flags too will be in cache most of the time. Signed-off-by: Christian Ehrhardt Signed-off-by: Martin Schwidefsky --- arch/s390/include/asm/processor.h | 17 +++-------------- 1 file changed, 3 insertions(+), 14 deletions(-) (limited to 'arch/s390/include/asm/processor.h') diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index 61862b3ac794..c139fa7b8e89 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -14,7 +14,10 @@ #define __ASM_S390_PROCESSOR_H #include +#include +#include #include +#include #ifdef __KERNEL__ /* @@ -23,20 +26,6 @@ */ #define current_text_addr() ({ void *pc; asm("basr %0,0" : "=a" (pc)); pc; }) -/* - * CPU type and hardware bug flags. Kept separately for each CPU. - * Members of this structure are referenced in head.S, so think twice - * before touching them. [mj] - */ - -typedef struct -{ - unsigned int version : 8; - unsigned int ident : 24; - unsigned int machine : 16; - unsigned int unused : 16; -} __attribute__ ((packed)) cpuid_t; - static inline void get_cpu_id(cpuid_t *ptr) { asm volatile("stidp 0(%1)" : "=m" (*ptr) : "a" (ptr)); -- cgit v1.2.3