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54 lines
1008 B
54 lines
1008 B
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* SHcompact irqflags support |
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* |
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* Copyright (C) 2006 - 2009 Paul Mundt |
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*/ |
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#include <linux/irqflags.h> |
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#include <linux/module.h> |
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void notrace arch_local_irq_restore(unsigned long flags) |
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{ |
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unsigned long __dummy0, __dummy1; |
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if (flags == ARCH_IRQ_DISABLED) { |
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__asm__ __volatile__ ( |
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"stc sr, %0\n\t" |
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"or #0xf0, %0\n\t" |
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"ldc %0, sr\n\t" |
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: "=&z" (__dummy0) |
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: /* no inputs */ |
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: "memory" |
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); |
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} else { |
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__asm__ __volatile__ ( |
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"stc sr, %0\n\t" |
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"and %1, %0\n\t" |
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#ifdef CONFIG_CPU_HAS_SR_RB |
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"stc r6_bank, %1\n\t" |
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"or %1, %0\n\t" |
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#endif |
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"ldc %0, sr\n\t" |
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: "=&r" (__dummy0), "=r" (__dummy1) |
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: "1" (~ARCH_IRQ_DISABLED) |
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: "memory" |
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); |
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} |
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} |
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EXPORT_SYMBOL(arch_local_irq_restore); |
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unsigned long notrace 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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"stc sr, %0\n\t" |
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"and #0xf0, %0\n\t" |
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: "=&z" (flags) |
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: /* no inputs */ |
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: "memory" |
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); |
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return flags; |
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} |
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EXPORT_SYMBOL(arch_local_save_flags);
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