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| // SPDX-License-Identifier: GPL-2.0
| /*
| * SHcompact irqflags support
| *
| * Copyright (C) 2006 - 2009 Paul Mundt
| */
| #include <linux/irqflags.h>
| #include <linux/module.h>
|
| void notrace arch_local_irq_restore(unsigned long flags)
| {
| unsigned long __dummy0, __dummy1;
|
| if (flags == ARCH_IRQ_DISABLED) {
| __asm__ __volatile__ (
| "stc sr, %0\n\t"
| "or #0xf0, %0\n\t"
| "ldc %0, sr\n\t"
| : "=&z" (__dummy0)
| : /* no inputs */
| : "memory"
| );
| } else {
| __asm__ __volatile__ (
| "stc sr, %0\n\t"
| "and %1, %0\n\t"
| #ifdef CONFIG_CPU_HAS_SR_RB
| "stc r6_bank, %1\n\t"
| "or %1, %0\n\t"
| #endif
| "ldc %0, sr\n\t"
| : "=&r" (__dummy0), "=r" (__dummy1)
| : "1" (~ARCH_IRQ_DISABLED)
| : "memory"
| );
| }
| }
| EXPORT_SYMBOL(arch_local_irq_restore);
|
| unsigned long notrace arch_local_save_flags(void)
| {
| unsigned long flags;
|
| __asm__ __volatile__ (
| "stc sr, %0\n\t"
| "and #0xf0, %0\n\t"
| : "=&z" (flags)
| : /* no inputs */
| : "memory"
| );
|
| return flags;
| }
| EXPORT_SYMBOL(arch_local_save_flags);
|
|
