1 /*
2 * Copyright (c) 2016-2017, 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 <gic_common.h>
11 #include <mmio.h>
12 #include <stdint.h>
13
14 /*******************************************************************************
15 * GIC Distributor interface register accessors that are common to GICv3 & GICv2
16 ******************************************************************************/
gicd_read_ctlr(uintptr_t base)17 static inline unsigned int gicd_read_ctlr(uintptr_t base)
18 {
19 return mmio_read_32(base + GICD_CTLR);
20 }
21
gicd_read_typer(uintptr_t base)22 static inline unsigned int gicd_read_typer(uintptr_t base)
23 {
24 return mmio_read_32(base + GICD_TYPER);
25 }
26
gicd_read_iidr(uintptr_t base)27 static inline unsigned int gicd_read_iidr(uintptr_t base)
28 {
29 return mmio_read_32(base + GICD_IIDR);
30 }
31
gicd_write_ctlr(uintptr_t base,unsigned int val)32 static inline void gicd_write_ctlr(uintptr_t base, unsigned int val)
33 {
34 mmio_write_32(base + GICD_CTLR, val);
35 }
36
37 /*******************************************************************************
38 * GIC Distributor function prototypes for accessing entire registers.
39 * Note: The raw register values correspond to multiple interrupt IDs and
40 * the number of interrupt IDs involved depends on the register accessed.
41 ******************************************************************************/
42 unsigned int gicd_read_igroupr(uintptr_t base, unsigned int id);
43 unsigned int gicd_read_isenabler(uintptr_t base, unsigned int id);
44 unsigned int gicd_read_icenabler(uintptr_t base, unsigned int id);
45 unsigned int gicd_read_ispendr(uintptr_t base, unsigned int id);
46 unsigned int gicd_read_icpendr(uintptr_t base, unsigned int id);
47 unsigned int gicd_read_isactiver(uintptr_t base, unsigned int id);
48 unsigned int gicd_read_icactiver(uintptr_t base, unsigned int id);
49 unsigned int gicd_read_ipriorityr(uintptr_t base, unsigned int id);
50 unsigned int gicd_read_icfgr(uintptr_t base, unsigned int id);
51 unsigned int gicd_read_nsacr(uintptr_t base, unsigned int id);
52 void gicd_write_igroupr(uintptr_t base, unsigned int id, unsigned int val);
53 void gicd_write_isenabler(uintptr_t base, unsigned int id, unsigned int val);
54 void gicd_write_icenabler(uintptr_t base, unsigned int id, unsigned int val);
55 void gicd_write_ispendr(uintptr_t base, unsigned int id, unsigned int val);
56 void gicd_write_icpendr(uintptr_t base, unsigned int id, unsigned int val);
57 void gicd_write_isactiver(uintptr_t base, unsigned int id, unsigned int val);
58 void gicd_write_icactiver(uintptr_t base, unsigned int id, unsigned int val);
59 void gicd_write_ipriorityr(uintptr_t base, unsigned int id, unsigned int val);
60 void gicd_write_icfgr(uintptr_t base, unsigned int id, unsigned int val);
61 void gicd_write_nsacr(uintptr_t base, unsigned int id, unsigned int val);
62
63 /*******************************************************************************
64 * GIC Distributor function prototypes for accessing the GIC registers
65 * corresponding to a single interrupt ID. These functions use bitwise
66 * operations or appropriate register accesses to modify or return
67 * the bit-field corresponding the single interrupt ID.
68 ******************************************************************************/
69 unsigned int gicd_get_igroupr(uintptr_t base, unsigned int id);
70 void gicd_set_igroupr(uintptr_t base, unsigned int id);
71 void gicd_clr_igroupr(uintptr_t base, unsigned int id);
72 void gicd_set_isenabler(uintptr_t base, unsigned int id);
73 void gicd_set_icenabler(uintptr_t base, unsigned int id);
74 void gicd_set_ispendr(uintptr_t base, unsigned int id);
75 void gicd_set_icpendr(uintptr_t base, unsigned int id);
76 unsigned int gicd_get_isactiver(uintptr_t base, unsigned int id);
77 void gicd_set_isactiver(uintptr_t base, unsigned int id);
78 void gicd_set_icactiver(uintptr_t base, unsigned int id);
79 void gicd_set_ipriorityr(uintptr_t base, unsigned int id, unsigned int pri);
80 void gicd_set_icfgr(uintptr_t base, unsigned int id, unsigned int cfg);
81
82 #endif /* GIC_COMMON_PRIVATE_H_ */
83