1 /* ioapic_priv.h - private IOAPIC APIs */
2 
3 /*
4  * Copyright (c) 2012-2015 Wind River Systems, Inc.
5  * Copyright (c) 2015 Intel Corporation
6  *
7  * SPDX-License-Identifier: Apache-2.0
8  */
9 
10 #ifndef ZEPHYR_DRIVERS_INTERRUPT_CONTROLLER_INTC_IOAPIC_PRIV_H_
11 #define ZEPHYR_DRIVERS_INTERRUPT_CONTROLLER_INTC_IOAPIC_PRIV_H_
12 
13 /* IO APIC direct register offsets */
14 
15 #define IOAPIC_IND 0x00   /* Index Register */
16 #define IOAPIC_DATA 0x10  /* IO window (data) - pc.h */
17 #define IOAPIC_IRQPA 0x20 /* IRQ Pin Assertion Register */
18 #define IOAPIC_EOI 0x40   /* EOI Register */
19 
20 /* IO APIC indirect register offset */
21 
22 #define IOAPIC_ID 0x00     /* IOAPIC ID */
23 #define IOAPIC_VERS 0x01   /* IOAPIC Version */
24 #define IOAPIC_ARB 0x02    /* IOAPIC Arbitration ID */
25 #define IOAPIC_BOOT 0x03   /* IOAPIC Boot Configuration */
26 #define IOAPIC_REDTBL 0x10 /* Redirection Table (24 * 64bit) */
27 
28 /* Interrupt delivery type */
29 
30 #define IOAPIC_DT_APIC 0x0 /* APIC serial bus */
31 #define IOAPIC_DT_FS 0x1   /* Front side bus message*/
32 
33 /* Version register bits */
34 
35 #define IOAPIC_MRE_MASK 0x00ff0000 /* Max Red. entry mask */
36 #define IOAPIC_MRE_POS 16
37 #define IOAPIC_PRQ 0x00008000      /* this has IRQ reg */
38 #define IOAPIC_VERSION 0x000000ff  /* version number */
39 
40 /* Redirection table entry bits: upper 32 bit */
41 
42 #define IOAPIC_DESTINATION 0xff000000
43 
44 /* Redirection table entry bits: lower 32 bit */
45 
46 #define IOAPIC_VEC_MASK 0x000000ff
47 
48 #endif /* ZEPHYR_DRIVERS_INTERRUPT_CONTROLLER_INTC_IOAPIC_PRIV_H_ */
49