1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* Copyright (c) 2010-2015,2019 The Linux Foundation. All rights reserved. 3 */ 4 #ifndef __QCOM_SCM_INT_H 5 #define __QCOM_SCM_INT_H 6 7 struct device; 8 9 enum qcom_scm_convention { 10 SMC_CONVENTION_UNKNOWN, 11 SMC_CONVENTION_LEGACY, 12 SMC_CONVENTION_ARM_32, 13 SMC_CONVENTION_ARM_64, 14 }; 15 16 extern enum qcom_scm_convention qcom_scm_convention; 17 18 #define MAX_QCOM_SCM_ARGS 10 19 #define MAX_QCOM_SCM_RETS 3 20 21 enum qcom_scm_arg_types { 22 QCOM_SCM_VAL, 23 QCOM_SCM_RO, 24 QCOM_SCM_RW, 25 QCOM_SCM_BUFVAL, 26 }; 27 28 #define QCOM_SCM_ARGS_IMPL(num, a, b, c, d, e, f, g, h, i, j, ...) (\ 29 (((a) & 0x3) << 4) | \ 30 (((b) & 0x3) << 6) | \ 31 (((c) & 0x3) << 8) | \ 32 (((d) & 0x3) << 10) | \ 33 (((e) & 0x3) << 12) | \ 34 (((f) & 0x3) << 14) | \ 35 (((g) & 0x3) << 16) | \ 36 (((h) & 0x3) << 18) | \ 37 (((i) & 0x3) << 20) | \ 38 (((j) & 0x3) << 22) | \ 39 ((num) & 0xf)) 40 41 #define QCOM_SCM_ARGS(...) QCOM_SCM_ARGS_IMPL(__VA_ARGS__, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) 42 43 44 /** 45 * struct qcom_scm_desc 46 * @arginfo: Metadata describing the arguments in args[] 47 * @args: The array of arguments for the secure syscall 48 */ 49 struct qcom_scm_desc { 50 u32 svc; 51 u32 cmd; 52 u32 arginfo; 53 u64 args[MAX_QCOM_SCM_ARGS]; 54 u32 owner; 55 }; 56 57 /** 58 * struct qcom_scm_res 59 * @result: The values returned by the secure syscall 60 */ 61 struct qcom_scm_res { 62 u64 result[MAX_QCOM_SCM_RETS]; 63 }; 64 65 int qcom_scm_wait_for_wq_completion(u32 wq_ctx); 66 int scm_get_wq_ctx(u32 *wq_ctx, u32 *flags, u32 *more_pending); 67 68 #define SCM_SMC_FNID(s, c) ((((s) & 0xFF) << 8) | ((c) & 0xFF)) 69 int __scm_smc_call(struct device *dev, const struct qcom_scm_desc *desc, 70 enum qcom_scm_convention qcom_convention, 71 struct qcom_scm_res *res, bool atomic); 72 #define scm_smc_call(dev, desc, res, atomic) \ 73 __scm_smc_call((dev), (desc), qcom_scm_convention, (res), (atomic)) 74 75 #define SCM_LEGACY_FNID(s, c) (((s) << 10) | ((c) & 0x3ff)) 76 int scm_legacy_call_atomic(struct device *dev, const struct qcom_scm_desc *desc, 77 struct qcom_scm_res *res); 78 int scm_legacy_call(struct device *dev, const struct qcom_scm_desc *desc, 79 struct qcom_scm_res *res); 80 81 #define QCOM_SCM_SVC_BOOT 0x01 82 #define QCOM_SCM_BOOT_SET_ADDR 0x01 83 #define QCOM_SCM_BOOT_TERMINATE_PC 0x02 84 #define QCOM_SCM_BOOT_SDI_CONFIG 0x09 85 #define QCOM_SCM_BOOT_SET_DLOAD_MODE 0x10 86 #define QCOM_SCM_BOOT_SET_ADDR_MC 0x11 87 #define QCOM_SCM_BOOT_SET_REMOTE_STATE 0x0a 88 #define QCOM_SCM_FLUSH_FLAG_MASK 0x3 89 #define QCOM_SCM_BOOT_MAX_CPUS 4 90 #define QCOM_SCM_BOOT_MC_FLAG_AARCH64 BIT(0) 91 #define QCOM_SCM_BOOT_MC_FLAG_COLDBOOT BIT(1) 92 #define QCOM_SCM_BOOT_MC_FLAG_WARMBOOT BIT(2) 93 94 #define QCOM_SCM_SVC_PIL 0x02 95 #define QCOM_SCM_PIL_PAS_INIT_IMAGE 0x01 96 #define QCOM_SCM_PIL_PAS_MEM_SETUP 0x02 97 #define QCOM_SCM_PIL_PAS_AUTH_AND_RESET 0x05 98 #define QCOM_SCM_PIL_PAS_SHUTDOWN 0x06 99 #define QCOM_SCM_PIL_PAS_IS_SUPPORTED 0x07 100 #define QCOM_SCM_PIL_PAS_MSS_RESET 0x0a 101 102 #define QCOM_SCM_SVC_IO 0x05 103 #define QCOM_SCM_IO_READ 0x01 104 #define QCOM_SCM_IO_WRITE 0x02 105 106 #define QCOM_SCM_SVC_INFO 0x06 107 #define QCOM_SCM_INFO_IS_CALL_AVAIL 0x01 108 109 #define QCOM_SCM_SVC_MP 0x0c 110 #define QCOM_SCM_MP_RESTORE_SEC_CFG 0x02 111 #define QCOM_SCM_MP_IOMMU_SECURE_PTBL_SIZE 0x03 112 #define QCOM_SCM_MP_IOMMU_SECURE_PTBL_INIT 0x04 113 #define QCOM_SCM_MP_IOMMU_SET_CP_POOL_SIZE 0x05 114 #define QCOM_SCM_MP_VIDEO_VAR 0x08 115 #define QCOM_SCM_MP_ASSIGN 0x16 116 117 #define QCOM_SCM_SVC_OCMEM 0x0f 118 #define QCOM_SCM_OCMEM_LOCK_CMD 0x01 119 #define QCOM_SCM_OCMEM_UNLOCK_CMD 0x02 120 121 #define QCOM_SCM_SVC_ES 0x10 /* Enterprise Security */ 122 #define QCOM_SCM_ES_INVALIDATE_ICE_KEY 0x03 123 #define QCOM_SCM_ES_CONFIG_SET_ICE_KEY 0x04 124 125 #define QCOM_SCM_SVC_HDCP 0x11 126 #define QCOM_SCM_HDCP_INVOKE 0x01 127 128 #define QCOM_SCM_SVC_LMH 0x13 129 #define QCOM_SCM_LMH_LIMIT_PROFILE_CHANGE 0x01 130 #define QCOM_SCM_LMH_LIMIT_DCVSH 0x10 131 132 #define QCOM_SCM_SVC_SMMU_PROGRAM 0x15 133 #define QCOM_SCM_SMMU_PT_FORMAT 0x01 134 #define QCOM_SCM_SMMU_CONFIG_ERRATA1 0x03 135 #define QCOM_SCM_SMMU_CONFIG_ERRATA1_CLIENT_ALL 0x02 136 137 #define QCOM_SCM_SVC_WAITQ 0x24 138 #define QCOM_SCM_WAITQ_RESUME 0x02 139 #define QCOM_SCM_WAITQ_GET_WQ_CTX 0x03 140 141 /* common error codes */ 142 #define QCOM_SCM_V2_EBUSY -12 143 #define QCOM_SCM_ENOMEM -5 144 #define QCOM_SCM_EOPNOTSUPP -4 145 #define QCOM_SCM_EINVAL_ADDR -3 146 #define QCOM_SCM_EINVAL_ARG -2 147 #define QCOM_SCM_ERROR -1 148 #define QCOM_SCM_INTERRUPTED 1 149 #define QCOM_SCM_WAITQ_SLEEP 2 150 151 static inline int qcom_scm_remap_error(int err) 152 { 153 switch (err) { 154 case QCOM_SCM_ERROR: 155 return -EIO; 156 case QCOM_SCM_EINVAL_ADDR: 157 case QCOM_SCM_EINVAL_ARG: 158 return -EINVAL; 159 case QCOM_SCM_EOPNOTSUPP: 160 return -EOPNOTSUPP; 161 case QCOM_SCM_ENOMEM: 162 return -ENOMEM; 163 case QCOM_SCM_V2_EBUSY: 164 return -EBUSY; 165 } 166 return -EINVAL; 167 } 168 169 #endif 170