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/*
* Copyright (c) 2016 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef __INC_SYS_APIC_H
#define __INC_SYS_APIC_H
#include <drivers/ioapic.h>
#include <drivers/loapic.h>
#define _IRQ_TRIGGER_EDGE IOAPIC_EDGE
#define _IRQ_TRIGGER_LEVEL IOAPIC_LEVEL
#define _IRQ_POLARITY_HIGH IOAPIC_HIGH
#define _IRQ_POLARITY_LOW IOAPIC_LOW
#ifndef _ASMLANGUAGE
#define LOAPIC_IRQ_BASE CONFIG_IOAPIC_NUM_RTES
#define LOAPIC_IRQ_COUNT 6 /* Default to LOAPIC_TIMER to LOAPIC_ERROR */
/* irq_controller.h interface */
void __irq_controller_irq_config(unsigned int vector, unsigned int irq,
uint32_t flags);
int __irq_controller_isr_vector_get(void);
static inline void __irq_controller_eoi(void)
{
#if CONFIG_EOI_FORWARDING_BUG
_lakemont_eoi();
#else
*(volatile int *)(CONFIG_LOAPIC_BASE_ADDRESS + LOAPIC_EOI) = 0;
#endif
}
#else /* _ASMLANGUAGE */
#if CONFIG_EOI_FORWARDING_BUG
.macro __irq_controller_eoi_macro
call _lakemont_eoi
.endm
#else
.macro __irq_controller_eoi_macro
xorl %eax, %eax /* zeroes eax */
loapic_eoi_reg = (CONFIG_LOAPIC_BASE_ADDRESS + LOAPIC_EOI)
movl %eax, loapic_eoi_reg /* tell LOAPIC the IRQ is handled */
.endm
#endif /* CONFIG_EOI_FORMWARDING_BUG */
#endif /* _ASMLANGUAGE */
#endif /* __INC_SYS_APIC_H */
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