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47 lines
905 B
C
47 lines
905 B
C
/*
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* Copyright 2016, Imagination Technologies Limited and/or its
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* affiliated group companies.
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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#include <mips/m32c0.h>
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#include "irq.h"
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unsigned int irq_enable(void)
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{
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unsigned int status;
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__asm__ volatile ("ei %0" : "=r" (status));
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return status;
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}
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unsigned int irq_disable(void)
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{
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unsigned int status;
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__asm__ volatile ("di %0" : "=r" (status));
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return status;
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}
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void irq_restore(unsigned int state)
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{
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if (state & SR_IE) {
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mips32_bs_c0(C0_STATUS, SR_IE);
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}
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else {
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mips32_bc_c0(C0_STATUS, SR_IE);
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}
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}
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bool irq_is_in(void)
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{
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return mips32_get_c0(C0_STATUS) & SR_EXL;
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}
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bool irq_is_enabled(void)
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{
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return mips32_get_c0(C0_STATUS) & SR_IE;
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}
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