62 lines
1.9 KiB
C
62 lines
1.9 KiB
C
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/* ioapic_priv.h - private IOAPIC APIs */
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/*
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* Copyright (c) 2012-2015 Wind River Systems, Inc.
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* Copyright (c) 2015 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 __INCioapic_privh
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#define __INCioapic_privh
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/* IO APIC direct register offsets */
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#define IOAPIC_IND 0x00 /* Index Register */
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#define IOAPIC_DATA 0x10 /* IO window (data) - pc.h */
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#define IOAPIC_IRQPA 0x20 /* IRQ Pin Assertion Register */
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#define IOAPIC_EOI 0x40 /* EOI Register */
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/* IO APIC indirect register offset */
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#define IOAPIC_ID 0x00 /* IOAPIC ID */
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#define IOAPIC_VERS 0x01 /* IOAPIC Version */
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#define IOAPIC_ARB 0x02 /* IOAPIC Arbitration ID */
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#define IOAPIC_BOOT 0x03 /* IOAPIC Boot Configuration */
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#define IOAPIC_REDTBL 0x10 /* Redirection Table (24 * 64bit) */
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/* Interrupt delivery type */
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#define IOAPIC_DT_APIC 0x0 /* APIC serial bus */
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#define IOAPIC_DT_FS 0x1 /* Front side bus message*/
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/* Version register bits */
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#define IOAPIC_MRE_MASK 0x00ff0000 /* Max Red. entry mask */
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#define IOAPIC_PRQ 0x00008000 /* this has IRQ reg */
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#define IOAPIC_VERSION 0x000000ff /* version number */
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/* Redirection table entry number */
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#define MAX_REDTABLE_ENTRIES 24
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/* Redirection table entry bits: upper 32 bit */
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#define IOAPIC_DESTINATION 0xff000000
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/* Redirection table entry bits: lower 32 bit */
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#define IOAPIC_VEC_MASK 0x000000ff
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#endif
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