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Disintegrate asm/system.h for S390

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Disintegrate asm/system.h for S390.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-s390@vger.kernel.org
This commit is contained in:
David Howells
2012-03-28 18:30:02 +01:00
parent ae3a197e3d
commit a0616cdebc
39 changed files with 369 additions and 335 deletions
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24
arch/s390/include/asm/processor.h
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@@ -14,6 +14,7 @@
#define __ASM_S390_PROCESSOR_H
#include <linux/linkage.h>
#include <linux/irqflags.h>
#include <asm/cpu.h>
#include <asm/page.h>
#include <asm/ptrace.h>
@@ -156,6 +157,14 @@ unsigned long get_wchan(struct task_struct *p);
#define KSTK_EIP(tsk) (task_pt_regs(tsk)->psw.addr)
#define KSTK_ESP(tsk) (task_pt_regs(tsk)->gprs[15])
static inline unsigned short stap(void)
{
unsigned short cpu_address;
asm volatile("stap %0" : "=m" (cpu_address));
return cpu_address;
}
/*
* Give up the time slice of the virtual PU.
*/
@@ -303,6 +312,21 @@ static inline void __noreturn disabled_wait(unsigned long code)
while (1);
}
/*
* 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.
*/