[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 <ehrhardt@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index 61862b3..c139fa7 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 <linux/linkage.h>
+#include <asm/cpuid.h>
+#include <asm/page.h>
#include <asm/ptrace.h>
+#include <asm/setup.h>
#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));