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>
86 lines
1.8 KiB
C
86 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2020-2022 Loongson Technology Corporation Limited
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*/
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#ifndef _ASM_IRQFLAGS_H
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#define _ASM_IRQFLAGS_H
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#ifndef __ASSEMBLER__
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#include <linux/compiler.h>
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#include <linux/stringify.h>
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#include <asm/loongarch.h>
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static inline void arch_local_irq_enable(void)
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{
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u32 flags = CSR_CRMD_IE;
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register u32 mask asm("t0") = CSR_CRMD_IE;
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__asm__ __volatile__(
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"csrxchg %[val], %[mask], %[reg]\n\t"
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: [val] "+r" (flags)
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: [mask] "r" (mask), [reg] "i" (LOONGARCH_CSR_CRMD)
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: "memory");
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}
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static inline void arch_local_irq_disable(void)
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{
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u32 flags = 0;
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register u32 mask asm("t0") = CSR_CRMD_IE;
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__asm__ __volatile__(
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"csrxchg %[val], %[mask], %[reg]\n\t"
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: [val] "+r" (flags)
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: [mask] "r" (mask), [reg] "i" (LOONGARCH_CSR_CRMD)
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: "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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u32 flags = 0;
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register u32 mask asm("t0") = CSR_CRMD_IE;
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__asm__ __volatile__(
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"csrxchg %[val], %[mask], %[reg]\n\t"
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: [val] "+r" (flags)
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: [mask] "r" (mask), [reg] "i" (LOONGARCH_CSR_CRMD)
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: "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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register u32 mask asm("t0") = CSR_CRMD_IE;
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__asm__ __volatile__(
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"csrxchg %[val], %[mask], %[reg]\n\t"
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: [val] "+r" (flags)
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: [mask] "r" (mask), [reg] "i" (LOONGARCH_CSR_CRMD)
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: "memory");
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}
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static inline unsigned long arch_local_save_flags(void)
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{
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u32 flags;
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__asm__ __volatile__(
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"csrrd %[val], %[reg]\n\t"
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: [val] "=r" (flags)
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: [reg] "i" (LOONGARCH_CSR_CRMD)
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: "memory");
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return flags;
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}
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static inline int arch_irqs_disabled_flags(unsigned long flags)
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{
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return !(flags & CSR_CRMD_IE);
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}
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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 /* #ifndef __ASSEMBLER__ */
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#endif /* _ASM_IRQFLAGS_H */
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