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, 108 deletions

diff --git a/arch/mn10300/include/asm/system.h b/arch/mn10300/include/asm/system.h
index 3636c054dcd5..9f7c7e17c01e 100644
--- a/arch/mn10300/include/asm/system.h
+++ b/arch/mn10300/include/asm/system.h
@@ -17,6 +17,7 @@
 #ifndef __ASSEMBLY__
 
 #include <linux/kernel.h>
+#include <linux/irqflags.h>
 
 struct task_struct;
 struct thread_struct;
@@ -81,114 +82,6 @@ do {									\
 
 /*****************************************************************************/
 /*
- * interrupt control
- * - "disabled": run in IM1/2
- *   - level 0 - GDB stub
- *   - level 1 - virtual serial DMA (if present)
- *   - level 5 - normal interrupt priority
- *   - level 6 - timer interrupt
- * - "enabled":  run in IM7
- */
-#ifdef CONFIG_MN10300_TTYSM
-#define MN10300_CLI_LEVEL	EPSW_IM_2
-#else
-#define MN10300_CLI_LEVEL	EPSW_IM_1
-#endif
-
-#define local_save_flags(x)			\
-do {						\
-	typecheck(unsigned long, x);		\
-	asm volatile(				\
-		"	mov epsw,%0	\n"	\
-		: "=d"(x)			\
-		);				\
-} while (0)
-
-#define local_irq_disable()						\
-do {									\
-	asm volatile(							\
-		"	and %0,epsw	\n"				\
-		"	or %1,epsw	\n"				\
-		"	nop		\n"				\
-		"	nop		\n"				\
-		"	nop		\n"				\
-		:							\
-		: "i"(~EPSW_IM), "i"(EPSW_IE | MN10300_CLI_LEVEL)	\
-		);							\
-} while (0)
-
-#define local_irq_save(x)			\
-do {						\
-	local_save_flags(x);			\
-	local_irq_disable();			\
-} while (0)
-
-/*
- * we make sure local_irq_enable() doesn't cause priority inversion
- */
-#ifndef __ASSEMBLY__
-
-extern unsigned long __mn10300_irq_enabled_epsw;
-
-#endif
-
-#define local_irq_enable()						\
-do {									\
-	unsigned long tmp;						\
-									\
-	asm volatile(							\
-		"	mov	epsw,%0		\n"			\
-		"	and	%1,%0		\n"			\
-		"	or	%2,%0		\n"			\
-		"	mov	%0,epsw		\n"			\
-		: "=&d"(tmp)						\
-		: "i"(~EPSW_IM), "r"(__mn10300_irq_enabled_epsw)	\
-		: "cc"							\
-		);							\
-} while (0)
-
-#define local_irq_restore(x)			\
-do {						\
-	typecheck(unsigned long, x);		\
-	asm volatile(				\
-		"	mov %0,epsw	\n"	\
-		"	nop		\n"	\
-		"	nop		\n"	\
-		"	nop		\n"	\
-		:				\
-		: "d"(x)			\
-		: "memory", "cc"		\
-		);				\
-} while (0)
-
-#define irqs_disabled()				\
-({						\
-	unsigned long flags;			\
-	local_save_flags(flags);		\
-	(flags & EPSW_IM) <= MN10300_CLI_LEVEL;	\
-})
-
-/* hook to save power by halting the CPU
- * - called from the idle loop
- * - must reenable interrupts (which takes three instruction cycles to complete)
- */
-#define safe_halt()							\
-do {									\
-	asm volatile("	or	%0,epsw	\n"				\
-		     "	nop		\n"				\
-		     "	nop		\n"				\
-		     "	bset	%2,(%1)	\n"				\
-		     :							\
-		     : "i"(EPSW_IE|EPSW_IM), "n"(&CPUM), "i"(CPUM_SLEEP)\
-		     : "cc"						\
-		     );							\
-} while (0)
-
-#define STI	or EPSW_IE|EPSW_IM,epsw
-#define CLI	and ~EPSW_IM,epsw; or EPSW_IE|MN10300_CLI_LEVEL,epsw; nop; nop; nop
-
-/*****************************************************************************/
-/*
  * MN10300 doesn't actually have an exchange instruction
  */
 #ifndef __ASSEMBLY__