/* 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,
  			struct qcom_scm_res *res, bool 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