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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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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
67 lines
1.5 KiB
C
67 lines
1.5 KiB
C
#ifndef __ASM_GENERIC_IRQFLAGS_H
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#define __ASM_GENERIC_IRQFLAGS_H
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/*
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* All architectures should implement at least the first two functions,
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* usually inline assembly will be the best way.
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*/
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#ifndef ARCH_IRQ_DISABLED
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#define ARCH_IRQ_DISABLED 0
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#define ARCH_IRQ_ENABLED 1
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#endif
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/* read interrupt enabled status */
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#ifndef arch_local_save_flags
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unsigned long arch_local_save_flags(void);
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#endif
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/* set interrupt enabled status */
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#ifndef arch_local_irq_restore
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void arch_local_irq_restore(unsigned long flags);
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#endif
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/* get status and disable interrupts */
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#ifndef arch_local_irq_save
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static inline unsigned long arch_local_irq_save(void)
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{
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unsigned long flags;
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flags = arch_local_save_flags();
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arch_local_irq_restore(ARCH_IRQ_DISABLED);
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return flags;
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}
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#endif
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/* test flags */
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#ifndef arch_irqs_disabled_flags
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static inline int arch_irqs_disabled_flags(unsigned long flags)
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{
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return flags == ARCH_IRQ_DISABLED;
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}
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#endif
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/* unconditionally enable interrupts */
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#ifndef arch_local_irq_enable
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static inline void arch_local_irq_enable(void)
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{
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arch_local_irq_restore(ARCH_IRQ_ENABLED);
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}
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#endif
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/* unconditionally disable interrupts */
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#ifndef arch_local_irq_disable
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static inline void arch_local_irq_disable(void)
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{
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arch_local_irq_restore(ARCH_IRQ_DISABLED);
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}
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#endif
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/* test hardware interrupt enable bit */
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#ifndef arch_irqs_disabled
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static inline int arch_irqs_disabled(void)
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{
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return arch_irqs_disabled_flags(arch_local_save_flags());
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}
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#endif
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#endif /* __ASM_GENERIC_IRQFLAGS_H */
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