mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-13 06:42:56 +00:00
1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
/*
|
|
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
|
|
* Scott McNutt <smcnutt@psyent.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
#ifndef __ASM_NIOS2_SYSTEM_H_
|
|
#define __ASM_NIOS2_SYSTEM_H_
|
|
|
|
#define local_irq_enable() __asm__ __volatile__ ( \
|
|
"rdctl r8, status\n" \
|
|
"ori r8, r8, 1\n" \
|
|
"wrctl status, r8\n" \
|
|
: : : "r8")
|
|
|
|
#define local_irq_disable() __asm__ __volatile__ ( \
|
|
"rdctl r8, status\n" \
|
|
"andi r8, r8, 0xfffe\n" \
|
|
"wrctl status, r8\n" \
|
|
: : : "r8")
|
|
|
|
#define local_save_flags(x) __asm__ __volatile__ ( \
|
|
"rdctl r8, status\n" \
|
|
"mov %0, r8\n" \
|
|
: "=r" (x) : : "r8", "memory")
|
|
|
|
#define local_irq_restore(x) __asm__ __volatile__ ( \
|
|
"mov r8, %0\n" \
|
|
"wrctl status, r8\n" \
|
|
: : "r" (x) : "r8", "memory")
|
|
|
|
/* For spinlocks etc */
|
|
#define local_irq_save(x) do { local_save_flags(x); local_irq_disable(); } \
|
|
while (0)
|
|
|
|
#define irqs_disabled() \
|
|
({ \
|
|
unsigned long flags; \
|
|
local_save_flags(flags); \
|
|
((flags & NIOS2_STATUS_PIE_MSK) == 0x0); \
|
|
})
|
|
|
|
/* indirect call to go beyond 256MB limitation of toolchain */
|
|
#define nios2_callr(addr) __asm__ __volatile__ ( \
|
|
"callr %0" \
|
|
: : "r" (addr))
|
|
|
|
#endif /* __ASM_NIOS2_SYSTEM_H */
|