090385b666
This was only needed for the older 8259A style PICs which are no longer supported. Since we now just support APIC, we always just call loapic_eoi which no longer requires an argument and informs the IOAPIC that the interrupt is complete if necessary. Change-Id: I15c9b7b4f03b872656220af32220b62e043bfa6b Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
86 lines
3.1 KiB
C
86 lines
3.1 KiB
C
/* loapic.h - public LOAPIC APIs */
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/*
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* Copyright (c) 2015 Wind River Systems, Inc.
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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 __INCloapich
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#define __INCloapich
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Local APIC Register Offset */
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#define LOAPIC_ID 0x020 /* Local APIC ID Reg */
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#define LOAPIC_VER 0x030 /* Local APIC Version Reg */
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#define LOAPIC_TPR 0x080 /* Task Priority Reg */
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#define LOAPIC_APR 0x090 /* Arbitration Priority Reg */
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#define LOAPIC_PPR 0x0a0 /* Processor Priority Reg */
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#define LOAPIC_EOI 0x0b0 /* EOI Reg */
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#define LOAPIC_LDR 0x0d0 /* Logical Destination Reg */
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#define LOAPIC_DFR 0x0e0 /* Destination Format Reg */
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#define LOAPIC_SVR 0x0f0 /* Spurious Interrupt Reg */
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#define LOAPIC_ISR 0x100 /* In-service Reg */
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#define LOAPIC_TMR 0x180 /* Trigger Mode Reg */
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#define LOAPIC_IRR 0x200 /* Interrupt Request Reg */
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#define LOAPIC_ESR 0x280 /* Error Status Reg */
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#define LOAPIC_ICRLO 0x300 /* Interrupt Command Reg */
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#define LOAPIC_ICRHI 0x310 /* Interrupt Command Reg */
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#define LOAPIC_TIMER 0x320 /* LVT (Timer) */
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#define LOAPIC_THERMAL 0x330 /* LVT (Thermal) */
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#define LOAPIC_PMC 0x340 /* LVT (PMC) */
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#define LOAPIC_LINT0 0x350 /* LVT (LINT0) */
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#define LOAPIC_LINT1 0x360 /* LVT (LINT1) */
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#define LOAPIC_ERROR 0x370 /* LVT (ERROR) */
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#define LOAPIC_TIMER 0x320 /* LVT (Timer) */
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#define LOAPIC_TIMER_ICR 0x380 /* Timer Initial Count Reg */
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#define LOAPIC_TIMER_CCR 0x390 /* Timer Current Count Reg */
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#define LOAPIC_TIMER_CONFIG 0x3e0 /* Timer Divide Config Reg */
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/* Local APIC Vector Table Bits */
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#define LOAPIC_LVT_MASKED 0x00010000 /* mask */
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#ifdef _ASMLANGUAGE
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GTEXT(_loapic_eoi)
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.macro loapic_mkstub device isr context
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GTEXT(_\()\device\()_\()\isr\()_stub)
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SECTION_FUNC(TEXT, _\()\device\()_\()\isr\()_stub)
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call _IntEnt /* Inform kernel interrupt has begun */
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pushl \context /* Push context parameter */
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call \isr /* Call actual interrupt handler */
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popl %eax /* Clean-up stack from push above */
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call _loapic_eoi /* Inform loapic interrupt is done */
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jmp _IntExit /* Inform kernel interrupt is done */
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.endm
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#else /* _ASMLANGUAGE */
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extern int _loapic_init(struct device *unused);
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extern void _loapic_eoi(void);
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extern void _loapic_int_vec_set(unsigned int irq, unsigned int vector);
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extern void _loapic_irq_enable(unsigned int irq);
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extern void _loapic_irq_disable(unsigned int irq);
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extern void _loapic_enable(void);
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extern void _loapic_disable(void);
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#endif /* _ASMLANGUAGE */
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#ifdef __cplusplus
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}
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#endif
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#endif /* __INCloapich */
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