| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * include/asm/irqflags.h |
| * |
| * IRQ flags handling |
| * |
| * This file gets included from lowlevel asm headers too, to provide |
| * wrapped versions of the local_irq_*() APIs, based on the |
| * arch_local_irq_*() functions from the lowlevel headers. |
| */ |
| #ifndef _ASM_IRQFLAGS_H |
| #define _ASM_IRQFLAGS_H |
| |
| #ifndef __ASSEMBLY__ |
| |
| #include <linux/types.h> |
| #include <asm/psr.h> |
| |
| void arch_local_irq_restore(unsigned long); |
| unsigned long arch_local_irq_save(void); |
| void arch_local_irq_enable(void); |
| |
| static inline notrace unsigned long arch_local_save_flags(void) |
| { |
| unsigned long flags; |
| |
| asm volatile("rd %%psr, %0" : "=r" (flags)); |
| return flags; |
| } |
| |
| static inline notrace void arch_local_irq_disable(void) |
| { |
| arch_local_irq_save(); |
| } |
| |
| static inline notrace bool arch_irqs_disabled_flags(unsigned long flags) |
| { |
| return (flags & PSR_PIL) != 0; |
| } |
| |
| static inline notrace bool arch_irqs_disabled(void) |
| { |
| return arch_irqs_disabled_flags(arch_local_save_flags()); |
| } |
| |
| #endif /* (__ASSEMBLY__) */ |
| |
| #endif /* !(_ASM_IRQFLAGS_H) */ |