1 /*
2 * Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved.
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6
7 #ifndef GIC_COMMON_PRIVATE_H
8 #define GIC_COMMON_PRIVATE_H
9
10 #include <stdint.h>
11
12 #include <drivers/arm/gic_common.h>
13 #include <lib/mmio.h>
14
15 /*******************************************************************************
16 * GIC Distributor interface register accessors that are common to GICv3 & GICv2
17 ******************************************************************************/
gicd_read_ctlr(uintptr_t base)18 static inline unsigned int gicd_read_ctlr(uintptr_t base)
19 {
20 return mmio_read_32(base + GICD_CTLR);
21 }
22
gicd_read_typer(uintptr_t base)23 static inline unsigned int gicd_read_typer(uintptr_t base)
24 {
25 return mmio_read_32(base + GICD_TYPER);
26 }
27
gicd_read_iidr(uintptr_t base)28 static inline unsigned int gicd_read_iidr(uintptr_t base)
29 {
30 return mmio_read_32(base + GICD_IIDR);
31 }
32
gicd_write_ctlr(uintptr_t base,unsigned int val)33 static inline void gicd_write_ctlr(uintptr_t base, unsigned int val)
34 {
35 mmio_write_32(base + GICD_CTLR, val);
36 }
37
38 /*******************************************************************************
39 * GIC Distributor function prototypes for accessing entire registers.
40 * Note: The raw register values correspond to multiple interrupt IDs and
41 * the number of interrupt IDs involved depends on the register accessed.
42 ******************************************************************************/
43 unsigned int gicd_read_igroupr(uintptr_t base, unsigned int id);
44 unsigned int gicd_read_isenabler(uintptr_t base, unsigned int id);
45 unsigned int gicd_read_icenabler(uintptr_t base, unsigned int id);
46 unsigned int gicd_read_ispendr(uintptr_t base, unsigned int id);
47 unsigned int gicd_read_icpendr(uintptr_t base, unsigned int id);
48 unsigned int gicd_read_isactiver(uintptr_t base, unsigned int id);
49 unsigned int gicd_read_icactiver(uintptr_t base, unsigned int id);
50 unsigned int gicd_read_ipriorityr(uintptr_t base, unsigned int id);
51 unsigned int gicd_read_icfgr(uintptr_t base, unsigned int id);
52 unsigned int gicd_read_nsacr(uintptr_t base, unsigned int id);
53 unsigned int gicd_read_spendsgir(uintptr_t base, unsigned int id);
54 unsigned int gicd_read_cpendsgir(uintptr_t base, unsigned int id);
55 unsigned int gicd_read_itargetsr(uintptr_t base, unsigned int id);
56 void gicd_write_igroupr(uintptr_t base, unsigned int id, unsigned int val);
57 void gicd_write_isenabler(uintptr_t base, unsigned int id, unsigned int val);
58 void gicd_write_icenabler(uintptr_t base, unsigned int id, unsigned int val);
59 void gicd_write_ispendr(uintptr_t base, unsigned int id, unsigned int val);
60 void gicd_write_icpendr(uintptr_t base, unsigned int id, unsigned int val);
61 void gicd_write_isactiver(uintptr_t base, unsigned int id, unsigned int val);
62 void gicd_write_icactiver(uintptr_t base, unsigned int id, unsigned int val);
63 void gicd_write_ipriorityr(uintptr_t base, unsigned int id, unsigned int val);
64 void gicd_write_icfgr(uintptr_t base, unsigned int id, unsigned int val);
65 void gicd_write_nsacr(uintptr_t base, unsigned int id, unsigned int val);
66 void gicd_write_spendsgir(uintptr_t base, unsigned int id, unsigned int val);
67 void gicd_write_cpendsgir(uintptr_t base, unsigned int id, unsigned int val);
68 void gicd_write_itargetsr(uintptr_t base, unsigned int id, unsigned int val);
69
70 /*******************************************************************************
71 * GIC Distributor function prototypes for accessing the GIC registers
72 * corresponding to a single interrupt ID. These functions use bitwise
73 * operations or appropriate register accesses to modify or return
74 * the bit-field corresponding the single interrupt ID.
75 ******************************************************************************/
76 unsigned int gicd_get_igroupr(uintptr_t base, unsigned int id);
77 void gicd_set_igroupr(uintptr_t base, unsigned int id);
78 void gicd_clr_igroupr(uintptr_t base, unsigned int id);
79 void gicd_set_isenabler(uintptr_t base, unsigned int id);
80 void gicd_set_icenabler(uintptr_t base, unsigned int id);
81 void gicd_set_ispendr(uintptr_t base, unsigned int id);
82 void gicd_set_icpendr(uintptr_t base, unsigned int id);
83 unsigned int gicd_get_isactiver(uintptr_t base, unsigned int id);
84 void gicd_set_isactiver(uintptr_t base, unsigned int id);
85 void gicd_set_icactiver(uintptr_t base, unsigned int id);
86 void gicd_set_ipriorityr(uintptr_t base, unsigned int id, unsigned int pri);
87 void gicd_set_icfgr(uintptr_t base, unsigned int id, unsigned int cfg);
88
89 #endif /* GIC_COMMON_PRIVATE_H */
90