提交 c8558fcd 编写于 作者: I Ingo Molnar 提交者: Linus Torvalds

[PATCH] lockdep: irqtrace cleanup of include/asm-i386/irqflags.h

Clean up the x86 irqflags.h file:

 - macro => inline function transformation
 - simplifications
 - style fixes
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NArjan van de Ven <arjan@linux.intel.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
上级 55f327fa
master alk-4.19.24 alk-4.19.30 alk-4.19.34 alk-4.19.36 alk-4.19.43 alk-4.19.48 alk-4.19.57 ck-4.19.67 ck-4.19.81 ck-4.19.91 github/fork/deepanshu1422/fix-typo-in-comment github/fork/haosdent/fix-typo linux-next v4.19.91 v4.19.90 v4.19.89 v4.19.88 v4.19.87 v4.19.86 v4.19.85 v4.19.84 v4.19.83 v4.19.82 v4.19.81 v4.19.80 v4.19.79 v4.19.78 v4.19.77 v4.19.76 v4.19.75 v4.19.74 v4.19.73 v4.19.72 v4.19.71 v4.19.70 v4.19.69 v4.19.68 v4.19.67 v4.19.66 v4.19.65 v4.19.64 v4.19.63 v4.19.62 v4.19.61 v4.19.60 v4.19.59 v4.19.58 v4.19.57 v4.19.56 v4.19.55 v4.19.54 v4.19.53 v4.19.52 v4.19.51 v4.19.50 v4.19.49 v4.19.48 v4.19.47 v4.19.46 v4.19.45 v4.19.44 v4.19.43 v4.19.42 v4.19.41 v4.19.40 v4.19.39 v4.19.38 v4.19.37 v4.19.36 v4.19.35 v4.19.34 v4.19.33 v4.19.32 v4.19.31 v4.19.30 v4.19.29 v4.19.28 v4.19.27 v4.19.26 v4.19.25 v4.19.24 v4.19.23 v4.19.22 v4.19.21 v4.19.20 v4.19.19 v4.19.18 v4.19.17 v4.19.16 v4.19.15 v4.19.14 v4.19.13 v4.19.12 v4.19.11 v4.19.10 v4.19.9 v4.19.8 v4.19.7 v4.19.6 v4.19.5 v4.19.4 v4.19.3 v4.19.2 v4.19.1 v4.19 v4.19-rc8 v4.19-rc7 v4.19-rc6 v4.19-rc5 v4.19-rc4 v4.19-rc3 v4.19-rc2 v4.19-rc1 ck-release-21 ck-release-20 ck-release-19.2 ck-release-19.1 ck-release-19 ck-release-18 ck-release-17.2 ck-release-17.1 ck-release-17 ck-release-16 ck-release-15.1 ck-release-15 ck-release-14 ck-release-13.2 ck-release-13 ck-release-12 ck-release-11 ck-release-10 ck-release-9 ck-release-7 alk-release-15 alk-release-14 alk-release-13.2 alk-release-13 alk-release-12 alk-release-11 alk-release-10 alk-release-9 alk-release-7
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......@@ -5,24 +5,95 @@
*
* This file gets included from lowlevel asm headers too, to provide
* wrapped versions of the local_irq_*() APIs, based on the
* raw_local_irq_*() macros from the lowlevel headers.
* raw_local_irq_*() functions from the lowlevel headers.
*/
#ifndef _ASM_IRQFLAGS_H
#define _ASM_IRQFLAGS_H
#define raw_local_save_flags(x) do { typecheck(unsigned long,x); __asm__ __volatile__("pushfl ; popl %0":"=g" (x): /* no input */); } while (0)
#define raw_local_irq_restore(x) do { typecheck(unsigned long,x); __asm__ __volatile__("pushl %0 ; popfl": /* no output */ :"g" (x):"memory", "cc"); } while (0)
#define raw_local_irq_disable() __asm__ __volatile__("cli": : :"memory")
#define raw_local_irq_enable() __asm__ __volatile__("sti": : :"memory")
/* used in the idle loop; sti takes one instruction cycle to complete */
#define raw_safe_halt() __asm__ __volatile__("sti; hlt": : :"memory")
/* used when interrupts are already enabled or to shutdown the processor */
#define halt() __asm__ __volatile__("hlt": : :"memory")
#ifndef __ASSEMBLY__
#define raw_irqs_disabled_flags(flags) (!((flags) & (1<<9)))
static inline unsigned long __raw_local_save_flags(void)
{
unsigned long flags;
/* For spinlocks etc */
#define raw_local_irq_save(x) __asm__ __volatile__("pushfl ; popl %0 ; cli":"=g" (x): /* no input */ :"memory")
__asm__ __volatile__(
"pushfl ; popl %0"
: "=g" (flags)
: /* no input */
);
return flags;
}
#define raw_local_save_flags(flags) \
do { (flags) = __raw_local_save_flags(); } while (0)
static inline void raw_local_irq_restore(unsigned long flags)
{
__asm__ __volatile__(
"pushl %0 ; popfl"
: /* no output */
:"g" (flags)
:"memory", "cc"
);
}
static inline void raw_local_irq_disable(void)
{
__asm__ __volatile__("cli" : : : "memory");
}
static inline void raw_local_irq_enable(void)
{
__asm__ __volatile__("sti" : : : "memory");
}
/*
* Used in the idle loop; sti takes one instruction cycle
* to complete:
*/
static inline void raw_safe_halt(void)
{
__asm__ __volatile__("sti; hlt" : : : "memory");
}
/*
* Used when interrupts are already enabled or to
* shutdown the processor:
*/
static inline void halt(void)
{
__asm__ __volatile__("hlt": : :"memory");
}
static inline int raw_irqs_disabled_flags(unsigned long flags)
{
return !(flags & (1 << 9));
}
static inline int raw_irqs_disabled(void)
{
unsigned long flags = __raw_local_save_flags();
return raw_irqs_disabled_flags(flags);
}
/*
* For spinlocks, etc:
*/
static inline unsigned long __raw_local_irq_save(void)
{
unsigned long flags = __raw_local_save_flags();
raw_local_irq_disable();
return flags;
}
#define raw_local_irq_save(flags) \
do { (flags) = __raw_local_irq_save(); } while (0)
#endif /* __ASSEMBLY__ */
/*
* Do the CPU's IRQ-state tracing from assembly code. We call a
......
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