Fix IRQ flag handling naming

Fix the IRQ flag handling naming.  In linux/irqflags.h under one configuration,
it maps:

	local_irq_enable() -> raw_local_irq_enable()
	local_irq_disable() -> raw_local_irq_disable()
	local_irq_save() -> raw_local_irq_save()
	...

and under the other configuration, it maps:

	raw_local_irq_enable() -> local_irq_enable()
	raw_local_irq_disable() -> local_irq_disable()
	raw_local_irq_save() -> local_irq_save()
	...

This is quite confusing.  There should be one set of names expected of the
arch, and this should be wrapped to give another set of names that are expected
by users of this facility.

Change this to have the arch provide:

	flags = arch_local_save_flags()
	flags = arch_local_irq_save()
	arch_local_irq_restore(flags)
	arch_local_irq_disable()
	arch_local_irq_enable()
	arch_irqs_disabled_flags(flags)
	arch_irqs_disabled()
	arch_safe_halt()

Then linux/irqflags.h wraps these to provide:

	raw_local_save_flags(flags)
	raw_local_irq_save(flags)
	raw_local_irq_restore(flags)
	raw_local_irq_disable()
	raw_local_irq_enable()
	raw_irqs_disabled_flags(flags)
	raw_irqs_disabled()
	raw_safe_halt()

with type checking on the flags 'arguments', and then wraps those to provide:

	local_save_flags(flags)
	local_irq_save(flags)
	local_irq_restore(flags)
	local_irq_disable()
	local_irq_enable()
	irqs_disabled_flags(flags)
	irqs_disabled()
	safe_halt()

with tracing included if enabled.

The arch functions can now all be inline functions rather than some of them
having to be macros.

Signed-off-by: David Howells <dhowells@redhat.com> [X86, FRV, MN10300]
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> [Tile]
Signed-off-by: Michal Simek <monstr@monstr.eu> [Microblaze]
Tested-by: Catalin Marinas <catalin.marinas@arm.com> [ARM]
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> [AVR]
Acked-by: Tony Luck <tony.luck@intel.com> [IA-64]
Acked-by: Hirokazu Takata <takata@linux-m32r.org> [M32R]
Acked-by: Greg Ungerer <gerg@uclinux.org> [M68K/M68KNOMMU]
Acked-by: Ralf Baechle <ralf@linux-mips.org> [MIPS]
Acked-by: Kyle McMartin <kyle@mcmartin.ca> [PA-RISC]
Acked-by: Paul Mackerras <paulus@samba.org> [PowerPC]
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> [S390]
Acked-by: Chen Liqin <liqin.chen@sunplusct.com> [Score]
Acked-by: Matt Fleming <matt@console-pimps.org> [SH]
Acked-by: David S. Miller <davem@davemloft.net> [Sparc]
Acked-by: Chris Zankel <chris@zankel.net> [Xtensa]
Reviewed-by: Richard Henderson <rth@twiddle.net> [Alpha]
Reviewed-by: Yoshinori Sato <ysato@users.sourceforge.jp> [H8300]
Cc: starvik@axis.com [CRIS]
Cc: jesper.nilsson@axis.com [CRIS]
Cc: linux-cris-kernel@axis.com

1 files changed, 1 insertions, 32 deletions

diff --git a/arch/xtensa/include/asm/system.h b/arch/xtensa/include/asm/system.h
index 62b1e8f3c13c..1e7e09ab6cd7 100644
--- a/arch/xtensa/include/asm/system.h
+++ b/arch/xtensa/include/asm/system.h
@@ -12,41 +12,10 @@
 #define _XTENSA_SYSTEM_H
 
 #include <linux/stringify.h>
+#include <linux/irqflags.h>
 
 #include <asm/processor.h>
 
-/* interrupt control */
-
-#define local_save_flags(x)						\
-	__asm__ __volatile__ ("rsr %0,"__stringify(PS) : "=a" (x));
-#define local_irq_restore(x)	do {					\
-	__asm__ __volatile__ ("wsr %0, "__stringify(PS)" ; rsync" 	\
-	    		      :: "a" (x) : "memory"); } while(0);
-#define local_irq_save(x)	do {					\
-	__asm__ __volatile__ ("rsil %0, "__stringify(LOCKLEVEL) 	\
-	    		      : "=a" (x) :: "memory");} while(0);
-
-static inline void local_irq_disable(void)
-{
-	unsigned long flags;
-	__asm__ __volatile__ ("rsil %0, "__stringify(LOCKLEVEL)
-	    		      : "=a" (flags) :: "memory");
-}
-static inline void local_irq_enable(void)
-{
-	unsigned long flags;
-	__asm__ __volatile__ ("rsil %0, 0" : "=a" (flags) :: "memory");
-
-}
-
-static inline int irqs_disabled(void)
-{
-	unsigned long flags;
-	local_save_flags(flags);
-	return flags & 0xf;
-}
-
-
 #define smp_read_barrier_depends() do { } while(0)
 #define read_barrier_depends() do { } while(0)