aboutsummaryrefslogtreecommitdiff
path: root/drivers/firmware/qcom_scm.h
blob: 0d51eef2472f02c5dd22232fa8fa441cf2467b8c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright (c) 2010-2015,2019 The Linux Foundation. All rights reserved.
 */
#ifndef __QCOM_SCM_INT_H
#define __QCOM_SCM_INT_H

enum qcom_scm_convention {
	SMC_CONVENTION_UNKNOWN,
	SMC_CONVENTION_LEGACY,
	SMC_CONVENTION_ARM_32,
	SMC_CONVENTION_ARM_64,
};

extern enum qcom_scm_convention qcom_scm_convention;

#define MAX_QCOM_SCM_ARGS 10
#define MAX_QCOM_SCM_RETS 3

enum qcom_scm_arg_types {
	QCOM_SCM_VAL,
	QCOM_SCM_RO,
	QCOM_SCM_RW,
	QCOM_SCM_BUFVAL,
};

#define QCOM_SCM_ARGS_IMPL(num, a, b, c, d, e, f, g, h, i, j, ...) (\
			   (((a) & 0x3) << 4) | \
			   (((b) & 0x3) << 6) | \
			   (((c) & 0x3) << 8) | \
			   (((d) & 0x3) << 10) | \
			   (((e) & 0x3) << 12) | \
			   (((f) & 0x3) << 14) | \
			   (((g) & 0x3) << 16) | \
			   (((h) & 0x3) << 18) | \
			   (((i) & 0x3) << 20) | \
			   (((j) & 0x3) << 22) | \
			   ((num) & 0xf))

#define QCOM_SCM_ARGS(...) QCOM_SCM_ARGS_IMPL(__VA_ARGS__, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)


/**
 * struct qcom_scm_desc
 * @arginfo:	Metadata describing the arguments in args[]
 * @args:	The array of arguments for the secure syscall
 */
struct qcom_scm_desc {
	u32 svc;
	u32 cmd;
	u32 arginfo;
	u64 args[MAX_QCOM_SCM_ARGS];
	u32 owner;
};

/**
 * struct qcom_scm_res
 * @result:	The values returned by the secure syscall
 */
struct qcom_scm_res {
	u64 result[MAX_QCOM_SCM_RETS];
};

#define SCM_SMC_FNID(s, c)	((((s) & 0xFF) << 8) | ((c) & 0xFF))
extern int __scm_smc_call(struct device *dev, const struct qcom_scm_desc *desc,
			  enum qcom_scm_convention qcom_convention,
			  struct qcom_scm_res *res, bool atomic);
#define scm_smc_call(dev, desc, res, atomic) \
	__scm_smc_call((dev), (desc), qcom_scm_convention, (res), (atomic))

#define SCM_LEGACY_FNID(s, c)	(((s) << 10) | ((c) & 0x3ff))
extern int scm_legacy_call_atomic(struct device *dev,
				  const struct qcom_scm_desc *desc,
				  struct qcom_scm_res *res);
extern int scm_legacy_call(struct device *dev, const struct qcom_scm_desc *desc,
			   struct qcom_scm_res *res);

#define QCOM_SCM_SVC_BOOT		0x01
#define QCOM_SCM_BOOT_SET_ADDR		0x01
#define QCOM_SCM_BOOT_TERMINATE_PC	0x02
#define QCOM_SCM_BOOT_SET_DLOAD_MODE	0x10
#define QCOM_SCM_BOOT_SET_ADDR_MC	0x11
#define QCOM_SCM_BOOT_SET_REMOTE_STATE	0x0a
#define QCOM_SCM_FLUSH_FLAG_MASK	0x3
#define QCOM_SCM_BOOT_MAX_CPUS		4
#define QCOM_SCM_BOOT_MC_FLAG_AARCH64	BIT(0)
#define QCOM_SCM_BOOT_MC_FLAG_COLDBOOT	BIT(1)
#define QCOM_SCM_BOOT_MC_FLAG_WARMBOOT	BIT(2)

#define QCOM_SCM_SVC_PIL		0x02
#define QCOM_SCM_PIL_PAS_INIT_IMAGE	0x01
#define QCOM_SCM_PIL_PAS_MEM_SETUP	0x02
#define QCOM_SCM_PIL_PAS_AUTH_AND_RESET	0x05
#define QCOM_SCM_PIL_PAS_SHUTDOWN	0x06
#define QCOM_SCM_PIL_PAS_IS_SUPPORTED	0x07
#define QCOM_SCM_PIL_PAS_MSS_RESET	0x0a

#define QCOM_SCM_SVC_IO			0x05
#define QCOM_SCM_IO_READ		0x01
#define QCOM_SCM_IO_WRITE		0x02

#define QCOM_SCM_SVC_INFO		0x06
#define QCOM_SCM_INFO_IS_CALL_AVAIL	0x01

#define QCOM_SCM_SVC_MP				0x0c
#define QCOM_SCM_MP_RESTORE_SEC_CFG		0x02
#define QCOM_SCM_MP_IOMMU_SECURE_PTBL_SIZE	0x03
#define QCOM_SCM_MP_IOMMU_SECURE_PTBL_INIT	0x04
#define QCOM_SCM_MP_IOMMU_SET_CP_POOL_SIZE	0x05
#define QCOM_SCM_MP_VIDEO_VAR			0x08
#define QCOM_SCM_MP_ASSIGN			0x16

#define QCOM_SCM_SVC_OCMEM		0x0f
#define QCOM_SCM_OCMEM_LOCK_CMD		0x01
#define QCOM_SCM_OCMEM_UNLOCK_CMD	0x02

#define QCOM_SCM_SVC_ES			0x10	/* Enterprise Security */
#define QCOM_SCM_ES_INVALIDATE_ICE_KEY	0x03
#define QCOM_SCM_ES_CONFIG_SET_ICE_KEY	0x04

#define QCOM_SCM_SVC_HDCP		0x11
#define QCOM_SCM_HDCP_INVOKE		0x01

#define QCOM_SCM_SVC_LMH			0x13
#define QCOM_SCM_LMH_LIMIT_PROFILE_CHANGE	0x01
#define QCOM_SCM_LMH_LIMIT_DCVSH		0x10

#define QCOM_SCM_SVC_SMMU_PROGRAM		0x15
#define QCOM_SCM_SMMU_PT_FORMAT			0x01
#define QCOM_SCM_SMMU_CONFIG_ERRATA1		0x03
#define QCOM_SCM_SMMU_CONFIG_ERRATA1_CLIENT_ALL	0x02

extern void __qcom_scm_init(void);

/* common error codes */
#define QCOM_SCM_V2_EBUSY	-12
#define QCOM_SCM_ENOMEM		-5
#define QCOM_SCM_EOPNOTSUPP	-4
#define QCOM_SCM_EINVAL_ADDR	-3
#define QCOM_SCM_EINVAL_ARG	-2
#define QCOM_SCM_ERROR		-1
#define QCOM_SCM_INTERRUPTED	1

static inline int qcom_scm_remap_error(int err)
{
	switch (err) {
	case QCOM_SCM_ERROR:
		return -EIO;
	case QCOM_SCM_EINVAL_ADDR:
	case QCOM_SCM_EINVAL_ARG:
		return -EINVAL;
	case QCOM_SCM_EOPNOTSUPP:
		return -EOPNOTSUPP;
	case QCOM_SCM_ENOMEM:
		return -ENOMEM;
	case QCOM_SCM_V2_EBUSY:
		return -EBUSY;
	}
	return -EINVAL;
}

#endif