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f0ef0b02af
While the GCC and Clang compilers already define __ASSEMBLER__ automatically when compiling assembler code, __ASSEMBLY__ is a macro that only gets defined by the Makefiles in the kernel. This is bad since macros starting with two underscores are names that are reserved by the C language. It can also be very confusing for the developers when switching between userspace and kernelspace coding, or when dealing with uapi headers that rather should use __ASSEMBLER__ instead. So let's now standardize on the __ASSEMBLER__ macro that is provided by the compilers. This is almost a completely mechanical patch (done with a simple "sed -i" statement), with one comment tweaked manually in the arch/loongarch/include/asm/cpu.h file (it was missing the trailing underscores). Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
85 lines
1.8 KiB
C
85 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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