57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/*
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* Copyright (c) 2016 Intel Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __INC_SYS_APIC_H
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#define __INC_SYS_APIC_H
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#include <drivers/ioapic.h>
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#include <drivers/loapic.h>
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#define _IRQ_TRIGGER_EDGE IOAPIC_EDGE
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#define _IRQ_TRIGGER_LEVEL IOAPIC_LEVEL
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#define _IRQ_POLARITY_HIGH IOAPIC_HIGH
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#define _IRQ_POLARITY_LOW IOAPIC_LOW
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#ifndef _ASMLANGUAGE
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#define LOAPIC_IRQ_BASE CONFIG_IOAPIC_NUM_RTES
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#define LOAPIC_IRQ_COUNT 6 /* Default to LOAPIC_TIMER to LOAPIC_ERROR */
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/* irq_controller.h interface */
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void __irq_controller_irq_config(unsigned int vector, unsigned int irq,
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uint32_t flags);
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int __irq_controller_isr_vector_get(void);
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#else /* _ASMLANGUAGE */
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#if CONFIG_EOI_FORWARDING_BUG
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.macro __irq_controller_eoi
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call _lakemont_eoi
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.endm
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#else
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.macro __irq_controller_eoi
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xorl %eax, %eax /* zeroes eax */
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loapic_eoi_reg = (CONFIG_LOAPIC_BASE_ADDRESS + LOAPIC_EOI)
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movl %eax, loapic_eoi_reg /* tell LOAPIC the IRQ is handled */
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.endm
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#endif /* CONFIG_EOI_FORMWARDING_BUG */
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#endif /* _ASMLANGUAGE */
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#endif /* __INC_SYS_APIC_H */
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