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df9ee29270
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
68 lines
1.1 KiB
C
68 lines
1.1 KiB
C
#ifndef __ALPHA_IRQFLAGS_H
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#define __ALPHA_IRQFLAGS_H
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#include <asm/system.h>
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#define IPL_MIN 0
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#define IPL_SW0 1
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#define IPL_SW1 2
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#define IPL_DEV0 3
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#define IPL_DEV1 4
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#define IPL_TIMER 5
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#define IPL_PERF 6
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#define IPL_POWERFAIL 6
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#define IPL_MCHECK 7
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#define IPL_MAX 7
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#ifdef CONFIG_ALPHA_BROKEN_IRQ_MASK
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#undef IPL_MIN
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#define IPL_MIN __min_ipl
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extern int __min_ipl;
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#endif
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#define getipl() (rdps() & 7)
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#define setipl(ipl) ((void) swpipl(ipl))
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static inline unsigned long arch_local_save_flags(void)
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{
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return rdps();
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}
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static inline void arch_local_irq_disable(void)
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{
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setipl(IPL_MAX);
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barrier();
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}
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static inline unsigned long arch_local_irq_save(void)
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{
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unsigned long flags = swpipl(IPL_MAX);
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barrier();
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return flags;
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}
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static inline void arch_local_irq_enable(void)
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{
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barrier();
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setipl(IPL_MIN);
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}
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static inline void arch_local_irq_restore(unsigned long flags)
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{
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barrier();
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setipl(flags);
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barrier();
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}
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static inline bool arch_irqs_disabled_flags(unsigned long flags)
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{
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return flags == IPL_MAX;
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}
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static inline bool arch_irqs_disabled(void)
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{
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return arch_irqs_disabled_flags(getipl());
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}
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#endif /* __ALPHA_IRQFLAGS_H */
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