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3b1307e1cd
While the GCC and Clang compilers already define __ASSEMBLER__ automatically when compiling assembly code, __ASSEMBLY__ is a macro that only gets defined by the Makefiles in the kernel. This can be very confusing when switching between userspace and kernelspace coding, or when dealing with uapi headers that rather should use __ASSEMBLER__ instead. So let's standardize on the __ASSEMBLER__ macro that is provided by the compilers now. This is a completely mechanical patch (done with a simple "sed -i" statement). Cc: David S. Miller <davem@davemloft.net> Cc: Andreas Larsson <andreas@gaisler.com> Cc: sparclinux@vger.kernel.org Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Andreas Larsson <andreas@gaisler.com> Signed-off-by: Andreas Larsson <andreas@gaisler.com>
99 lines
1.9 KiB
C
99 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* include/asm/irqflags.h
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*
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* IRQ flags handling
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*
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* This file gets included from lowlevel asm headers too, to provide
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* wrapped versions of the local_irq_*() APIs, based on the
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* arch_local_irq_*() functions from the lowlevel headers.
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*/
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#ifndef _ASM_IRQFLAGS_H
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#define _ASM_IRQFLAGS_H
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#include <asm/pil.h>
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#ifndef __ASSEMBLER__
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static inline notrace unsigned long arch_local_save_flags(void)
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{
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unsigned long flags;
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__asm__ __volatile__(
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"rdpr %%pil, %0"
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: "=r" (flags)
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);
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return flags;
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}
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static inline notrace void arch_local_irq_restore(unsigned long flags)
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{
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__asm__ __volatile__(
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"wrpr %0, %%pil"
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: /* no output */
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: "r" (flags)
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: "memory"
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);
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}
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static inline notrace void arch_local_irq_disable(void)
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{
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__asm__ __volatile__(
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"wrpr %0, %%pil"
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: /* no outputs */
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: "i" (PIL_NORMAL_MAX)
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: "memory"
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);
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}
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static inline notrace void arch_local_irq_enable(void)
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{
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__asm__ __volatile__(
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"wrpr 0, %%pil"
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: /* no outputs */
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: /* no inputs */
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: "memory"
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);
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}
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static inline notrace int arch_irqs_disabled_flags(unsigned long flags)
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{
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return (flags > 0);
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}
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static inline notrace 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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static inline notrace unsigned long arch_local_irq_save(void)
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{
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unsigned long flags, tmp;
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/* Disable interrupts to PIL_NORMAL_MAX unless we already
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* are using PIL_NMI, in which case PIL_NMI is retained.
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*
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* The only values we ever program into the %pil are 0,
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* PIL_NORMAL_MAX and PIL_NMI.
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*
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* Since PIL_NMI is the largest %pil value and all bits are
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* set in it (0xf), it doesn't matter what PIL_NORMAL_MAX
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* actually is.
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*/
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__asm__ __volatile__(
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"rdpr %%pil, %0\n\t"
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"or %0, %2, %1\n\t"
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"wrpr %1, 0x0, %%pil"
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: "=r" (flags), "=r" (tmp)
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: "i" (PIL_NORMAL_MAX)
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: "memory"
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);
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return flags;
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}
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#endif /* (__ASSEMBLER__) */
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#endif /* !(_ASM_IRQFLAGS_H) */
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