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
  7struct device;
  8
  9enum qcom_scm_convention {
 10	SMC_CONVENTION_UNKNOWN,
 11	SMC_CONVENTION_LEGACY,
 12	SMC_CONVENTION_ARM_32,
 13	SMC_CONVENTION_ARM_64,
 14};
 15
 16extern enum qcom_scm_convention qcom_scm_convention;
 17
 18#define MAX_QCOM_SCM_ARGS 10
 19#define MAX_QCOM_SCM_RETS 3
 20
 21enum 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 */
 49struct 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 */
 61struct qcom_scm_res {
 62	u64 result[MAX_QCOM_SCM_RETS];
 63};
 64
 65int qcom_scm_wait_for_wq_completion(u32 wq_ctx);
 66int 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))
 69int __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))
 76int scm_legacy_call_atomic(struct device *dev, const struct qcom_scm_desc *desc,
 77			   struct qcom_scm_res *res);
 78int 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
151static 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