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/* 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_REMOTE_STATE 0x0a
#define QCOM_SCM_FLUSH_FLAG_MASK 0x3
#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_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_SMMU_PROGRAM 0x15
#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
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