1 /*
2  * Copyright (c) 2021-2022, NVIDIA Corporation. All rights reserved.
3  *
4  * SPDX-License-Identifier: BSD-3-Clause
5  */
6 
7 #ifndef GIC600AE_FMU_H
8 #define GIC600AE_FMU_H
9 
10 /*******************************************************************************
11  * GIC600-AE FMU register offsets and constants
12  ******************************************************************************/
13 #define GICFMU_ERRFR_LO		U(0x000)
14 #define GICFMU_ERRFR_HI		U(0x004)
15 #define GICFMU_ERRCTLR_LO	U(0x008)
16 #define GICFMU_ERRCTLR_HI	U(0x00C)
17 #define GICFMU_ERRSTATUS_LO	U(0x010)
18 #define GICFMU_ERRSTATUS_HI	U(0x014)
19 #define GICFMU_ERRGSR_LO	U(0xE00)
20 #define GICFMU_ERRGSR_HI	U(0xE04)
21 #define GICFMU_KEY		U(0xEA0)
22 #define GICFMU_PINGCTLR		U(0xEA4)
23 #define GICFMU_PINGNOW		U(0xEA8)
24 #define GICFMU_SMEN		U(0xEB0)
25 #define GICFMU_SMINJERR		U(0xEB4)
26 #define GICFMU_PINGMASK_LO	U(0xEC0)
27 #define GICFMU_PINGMASK_HI	U(0xEC4)
28 #define GICFMU_STATUS		U(0xF00)
29 #define GICFMU_ERRIDR		U(0xFC8)
30 
31 /* ERRCTLR bits */
32 #define FMU_ERRCTLR_ED_BIT	BIT(0)
33 #define FMU_ERRCTLR_CE_EN_BIT	BIT(1)
34 #define FMU_ERRCTLR_UI_BIT	BIT(2)
35 #define FMU_ERRCTLR_CI_BIT	BIT(3)
36 
37 /* SMEN constants */
38 #define FMU_SMEN_BLK_SHIFT	U(8)
39 #define FMU_SMEN_SMID_SHIFT	U(24)
40 #define FMU_SMEN_EN_BIT		BIT(0)
41 
42 /* Error record IDs */
43 #define FMU_BLK_GICD		U(0)
44 #define FMU_BLK_SPICOL		U(1)
45 #define FMU_BLK_WAKERQ		U(2)
46 #define FMU_BLK_ITS0		U(4)
47 #define FMU_BLK_ITS1		U(5)
48 #define FMU_BLK_ITS2		U(6)
49 #define FMU_BLK_ITS3		U(7)
50 #define FMU_BLK_ITS4		U(8)
51 #define FMU_BLK_ITS5		U(9)
52 #define FMU_BLK_ITS6		U(10)
53 #define FMU_BLK_ITS7		U(11)
54 #define FMU_BLK_PPI0		U(12)
55 #define FMU_BLK_PPI1		U(13)
56 #define FMU_BLK_PPI2		U(14)
57 #define FMU_BLK_PPI3		U(15)
58 #define FMU_BLK_PPI4		U(16)
59 #define FMU_BLK_PPI5		U(17)
60 #define FMU_BLK_PPI6		U(18)
61 #define FMU_BLK_PPI7		U(19)
62 #define FMU_BLK_PPI8		U(20)
63 #define FMU_BLK_PPI9		U(21)
64 #define FMU_BLK_PPI10		U(22)
65 #define FMU_BLK_PPI11		U(23)
66 #define FMU_BLK_PPI12		U(24)
67 #define FMU_BLK_PPI13		U(25)
68 #define FMU_BLK_PPI14		U(26)
69 #define FMU_BLK_PPI15		U(27)
70 #define FMU_BLK_PPI16		U(28)
71 #define FMU_BLK_PPI17		U(29)
72 #define FMU_BLK_PPI18		U(30)
73 #define FMU_BLK_PPI19		U(31)
74 #define FMU_BLK_PPI20		U(32)
75 #define FMU_BLK_PPI21		U(33)
76 #define FMU_BLK_PPI22		U(34)
77 #define FMU_BLK_PPI23		U(35)
78 #define FMU_BLK_PPI24		U(36)
79 #define FMU_BLK_PPI25		U(37)
80 #define FMU_BLK_PPI26		U(38)
81 #define FMU_BLK_PPI27		U(39)
82 #define FMU_BLK_PPI28		U(40)
83 #define FMU_BLK_PPI29		U(41)
84 #define FMU_BLK_PPI30		U(42)
85 #define FMU_BLK_PPI31		U(43)
86 #define FMU_BLK_PRESENT_MASK	U(0xFFFFFFFFFFF)
87 
88 /* Safety Mechanism limit */
89 #define FMU_SMID_GICD_MAX	U(33)
90 #define FMU_SMID_PPI_MAX	U(12)
91 #define FMU_SMID_ITS_MAX	U(14)
92 #define FMU_SMID_SPICOL_MAX	U(5)
93 #define FMU_SMID_WAKERQ_MAX	U(2)
94 
95 /* MBIST Safety Mechanism ID */
96 #define GICD_MBIST_REQ_ERROR	U(23)
97 #define GICD_FMU_CLKGATE_ERROR	U(33)
98 #define PPI_MBIST_REQ_ERROR	U(10)
99 #define PPI_FMU_CLKGATE_ERROR	U(12)
100 #define ITS_MBIST_REQ_ERROR	U(13)
101 #define ITS_FMU_CLKGATE_ERROR	U(14)
102 
103 /* ERRSTATUS bits */
104 #define FMU_ERRSTATUS_BLKID_SHIFT	U(32)
105 #define FMU_ERRSTATUS_BLKID_MASK	U(0xFF)
106 #define FMU_ERRSTATUS_V_BIT		BIT(30)
107 #define FMU_ERRSTATUS_UE_BIT		BIT(29)
108 #define FMU_ERRSTATUS_OV_BIT		BIT(27)
109 #define FMU_ERRSTATUS_CE_BITS		(BIT(25) | BIT(24))
110 #define FMU_ERRSTATUS_CLEAR		(FMU_ERRSTATUS_V_BIT | FMU_ERRSTATUS_UE_BIT | \
111 					 FMU_ERRSTATUS_OV_BIT | FMU_ERRSTATUS_CE_BITS)
112 #define FMU_ERRSTATUS_IERR_MASK		U(0xFF)
113 #define FMU_ERRSTATUS_IERR_SHIFT	U(8)
114 #define FMU_ERRSTATUS_SERR_MASK		U(0xFF)
115 
116 /* PINGCTLR constants */
117 #define FMU_PINGCTLR_INTDIFF_SHIFT	U(16)
118 #define FMU_PINGCTLR_TIMEOUTVAL_SHIFT	U(4)
119 #define FMU_PINGCTLR_EN_BIT		BIT(0)
120 
121 #ifndef __ASSEMBLER__
122 
123 #include <stdint.h>
124 
125 #include <arch_helpers.h>
126 
127 /*******************************************************************************
128  * GIC600 FMU EL3 driver API
129  ******************************************************************************/
130 uint64_t gic_fmu_read_errfr(uintptr_t base, unsigned int n);
131 uint64_t gic_fmu_read_errctlr(uintptr_t base, unsigned int n);
132 uint64_t gic_fmu_read_errstatus(uintptr_t base, unsigned int n);
133 uint64_t gic_fmu_read_errgsr(uintptr_t base);
134 uint32_t gic_fmu_read_pingctlr(uintptr_t base);
135 uint32_t gic_fmu_read_pingnow(uintptr_t base);
136 uint64_t gic_fmu_read_pingmask(uintptr_t base);
137 uint32_t gic_fmu_read_status(uintptr_t base);
138 uint32_t gic_fmu_read_erridr(uintptr_t base);
139 void gic_fmu_write_errctlr(uintptr_t base, unsigned int n, uint64_t val);
140 void gic_fmu_write_errstatus(uintptr_t base, unsigned int n, uint64_t val);
141 void gic_fmu_write_pingctlr(uintptr_t base, uint32_t val);
142 void gic_fmu_write_pingnow(uintptr_t base, uint32_t val);
143 void gic_fmu_write_smen(uintptr_t base, uint32_t val);
144 void gic_fmu_write_sminjerr(uintptr_t base, uint32_t val);
145 void gic_fmu_write_pingmask(uintptr_t base, uint64_t val);
146 void gic_fmu_disable_all_sm_blkid(uintptr_t base, unsigned int blkid);
147 
148 void gic600_fmu_init(uint64_t base, uint64_t blk_present_mask, bool errctlr_ce_en, bool errctlr_ue_en);
149 void gic600_fmu_enable_ping(uint64_t base, uint64_t blk_present_mask,
150 		unsigned int timeout_val, unsigned int interval_diff);
151 void gic600_fmu_print_sm_info(uint64_t base, unsigned int blk, unsigned int smid);
152 int gic600_fmu_probe(uint64_t base, int *probe_data);
153 int gic600_fmu_ras_handler(uint64_t base, int probe_data);
154 
155 #endif /* __ASSEMBLER__ */
156 
157 #endif /* GIC600AE_FMU_H */
158