u-boot/arch/x86/cpu/x86_64/interrupts.c
Simon Glass 93031595ed x86: Add cpu code for x86_64
There is not much needed at present, but set up a separate directory to put
this code as it grows.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-02-06 11:38:46 +08:00

29 lines
464 B
C

/*
* (C) Copyright 2016 Google, Inc
* Written by Simon Glass <sjg@chromium.org>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/processor-flags.h>
void enable_interrupts(void)
{
asm("sti\n");
}
int disable_interrupts(void)
{
long flags;
asm volatile ("pushfq ; popq %0 ; cli\n" : "=g" (flags) : );
return flags & X86_EFLAGS_IF;
}
int interrupt_init(void)
{
/* Nothing to do - this was already done in SPL */
return 0;
}