1 /*-
2 * Copyright (c) 2016 The FreeBSD Foundation
3 * All rights reserved.
4 *
5 * This software was developed by Andrew Turner under
6 * the sponsorship of the FreeBSD Foundation.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD$
30 */
31
32 #ifndef _GIC_COMMON_H_
33 #define _GIC_COMMON_H_
34
35 #define GIC_IVAR_HW_REV 500
36 #define GIC_IVAR_BUS 501
37
38 /* GIC_IVAR_BUS values */
39 #define GIC_BUS_UNKNOWN 0
40 #define GIC_BUS_FDT 1
41 #define GIC_BUS_ACPI 2
42 #define GIC_BUS_MAX 2
43
44 __BUS_ACCESSOR(gic, hw_rev, GIC, HW_REV, u_int);
45 __BUS_ACCESSOR(gic, bus, GIC, BUS, u_int);
46
47 /* Software Generated Interrupts */
48 #define GIC_FIRST_SGI 0 /* Irqs 0-15 are SGIs/IPIs. */
49 #define GIC_LAST_SGI 15
50 /* Private Peripheral Interrupts */
51 #define GIC_FIRST_PPI 16 /* Irqs 16-31 are private (per */
52 #define GIC_LAST_PPI 31 /* core) peripheral interrupts. */
53 /* Shared Peripheral Interrupts */
54 #define GIC_FIRST_SPI 32 /* Irqs 32+ are shared peripherals. */
55
56 /* Common register values */
57 #define GICD_CTLR 0x0000 /* v1 ICDDCR */
58 #define GICD_TYPER 0x0004 /* v1 ICDICTR */
59 #define GICD_TYPER_I_NUM(n) ((((n) & 0x1F) + 1) * 32)
60 #define GICD_IIDR 0x0008 /* v1 ICDIIDR */
61 #define GICD_IIDR_PROD_SHIFT 24
62 #define GICD_IIDR_PROD_MASK 0xff000000
63 #define GICD_IIDR_PROD(x) \
64 (((x) & GICD_IIDR_PROD_MASK) >> GICD_IIDR_PROD_SHIFT)
65 #define GICD_IIDR_VAR_SHIFT 16
66 #define GICD_IIDR_VAR_MASK 0x000f0000
67 #define GICD_IIDR_VAR(x) \
68 (((x) & GICD_IIDR_VAR_MASK) >> GICD_IIDR_VAR_SHIFT)
69 #define GICD_IIDR_REV_SHIFT 12
70 #define GICD_IIDR_REV_MASK 0x0000f000
71 #define GICD_IIDR_REV(x) \
72 (((x) & GICD_IIDR_REV_MASK) >> GICD_IIDR_REV_SHIFT)
73 #define GICD_IIDR_IMPL_SHIFT 0
74 #define GICD_IIDR_IMPL_MASK 0x00000fff
75 #define GICD_IIDR_IMPL(x) \
76 (((x) & GICD_IIDR_IMPL_MASK) >> GICD_IIDR_IMPL_SHIFT)
77 #define GICD_IGROUPR(n) (0x0080 + (((n) >> 5) * 4)) /* v1 ICDISER */
78 #define GICD_I_PER_IGROUPRn 32
79 #define GICD_ISENABLER(n) (0x0100 + (((n) >> 5) * 4)) /* v1 ICDISER */
80 #define GICD_I_MASK(n) (1ul << ((n) & 0x1f))
81 #define GICD_I_PER_ISENABLERn 32
82 #define GICD_ICENABLER(n) (0x0180 + (((n) >> 5) * 4)) /* v1 ICDICER */
83 #define GICD_ISPENDR(n) (0x0200 + (((n) >> 5) * 4)) /* v1 ICDISPR */
84 #define GICD_ICPENDR(n) (0x0280 + (((n) >> 5) * 4)) /* v1 ICDICPR */
85 #define GICD_ICACTIVER(n) (0x0380 + (((n) >> 5) * 4)) /* v1 ICDABR */
86 #define GICD_IPRIORITYR(n) (0x0400 + (((n) >> 2) * 4)) /* v1 ICDIPR */
87 #define GICD_I_PER_IPRIORITYn 4
88 #define GICD_ITARGETSR(n) (0x0800 + (((n) >> 2) * 4)) /* v1 ICDIPTR */
89 #define GICD_ICFGR(n) (0x0C00 + (((n) >> 4) * 4)) /* v1 ICDICFR */
90 #define GICD_I_PER_ICFGRn 16
91 /* First bit is a polarity bit (0 - low, 1 - high) */
92 #define GICD_ICFGR_POL_LOW (0 << 0)
93 #define GICD_ICFGR_POL_HIGH (1 << 0)
94 #define GICD_ICFGR_POL_MASK 0x1
95 /* Second bit is a trigger bit (0 - level, 1 - edge) */
96 #define GICD_ICFGR_TRIG_LVL (0 << 1)
97 #define GICD_ICFGR_TRIG_EDGE (1 << 1)
98 #define GICD_ICFGR_TRIG_MASK 0x2
99 #define GICD_SGIR 0x0F00 /* v1 ICDSGIR */
100 #define GICD_SGI_TARGET_SHIFT 16
101
102 #endif /* _GIC_COMMON_H_ */
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