Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PARISC_IRQFLAGS_H
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#define __PARISC_IRQFLAGS_H
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#include <linux/types.h>
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#include <asm/psw.h>
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static inline unsigned long arch_local_save_flags(void)
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{
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unsigned long flags;
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asm volatile("ssm 0, %0" : "=r" (flags) : : "memory");
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return flags;
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}
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static inline void arch_local_irq_disable(void)
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{
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asm volatile("rsm %0,%%r0\n" : : "i" (PSW_I) : "memory");
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}
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static inline void arch_local_irq_enable(void)
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{
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asm volatile("ssm %0,%%r0\n" : : "i" (PSW_I) : "memory");
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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;
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asm volatile("rsm %1,%0" : "=r" (flags) : "i" (PSW_I) : "memory");
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return flags;
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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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/* warn if IRQs are on although they should be off */
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if (IS_ENABLED(CONFIG_LIGHTWEIGHT_SPINLOCK_CHECK))
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if (arch_local_save_flags() & PSW_I)
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asm volatile("break 6,6\n"); /* SPINLOCK_BREAK_INSN */
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asm volatile("mtsm %0" : : "r" (flags) : "memory");
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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 & PSW_I) == 0;
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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(arch_local_save_flags());
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}
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#endif /* __PARISC_IRQFLAGS_H */
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