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- /* SPDX-License-Identifier: GPL-2.0+ */
- /*
- * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
- * Scott McNutt <smcnutt@psyent.com>
- */
- #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))
- void display_sysid(void);
- #endif /* __ASM_NIOS2_SYSTEM_H */
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