/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2014,2017-2019 The Linux Foundation. All rights reserved. */ #ifndef _UAPI_COMPAT_QCEDEV__H #define _UAPI_COMPAT_QCEDEV__H #include #include #if IS_ENABLED(CONFIG_COMPAT) #include /** * struct compat_buf_info - Buffer information * @offset: Offset from the base address of the buffer * (Used when buffer is allocated using PMEM) * @vaddr: Virtual buffer address pointer * @len: Size of the buffer */ struct compat_buf_info { union { compat_ulong_t offset; compat_uptr_t vaddr; }; compat_ulong_t len; }; /** * struct compat_qcedev_vbuf_info - Source and destination Buffer information * @src: Array of buf_info for input/source * @dst: Array of buf_info for output/destination */ struct compat_qcedev_vbuf_info { struct compat_buf_info src[QCEDEV_MAX_BUFFERS]; struct compat_buf_info dst[QCEDEV_MAX_BUFFERS]; }; /** * struct compat_qcedev_pmem_info - Stores PMEM buffer information * @fd_src: Handle to /dev/adsp_pmem used to allocate * memory for input/src buffer * @src: Array of buf_info for input/source * @fd_dst: Handle to /dev/adsp_pmem used to allocate * memory for output/dst buffer * @dst: Array of buf_info for output/destination * @pmem_src_offset: The offset from input/src buffer * (allocated by PMEM) */ struct compat_qcedev_pmem_info { compat_int_t fd_src; struct compat_buf_info src[QCEDEV_MAX_BUFFERS]; compat_int_t fd_dst; struct compat_buf_info dst[QCEDEV_MAX_BUFFERS]; }; /** * struct compat_qcedev_cipher_op_req - Holds the ciphering request information * @use_pmem (IN): Flag to indicate if buffer source is PMEM * QCEDEV_USE_PMEM/QCEDEV_NO_PMEM * @pmem (IN): Stores PMEM buffer information. * Refer struct qcedev_pmem_info * @vbuf (IN/OUT): Stores Source and destination Buffer information * Refer to struct qcedev_vbuf_info * @data_len (IN): Total Length of input/src and output/dst in bytes * @in_place_op (IN): Indicates whether the operation is inplace where * source == destination * When using PMEM allocated memory, must set this to 1 * @enckey (IN): 128 bits of confidentiality key * enckey[0] bit 127-120, enckey[1] bit 119-112,.. * enckey[15] bit 7-0 * @encklen (IN): Length of the encryption key(set to 128 bits/16 * bytes in the driver) * @iv (IN/OUT): Initialization vector data * This is updated by the driver, incremented by * number of blocks encrypted/decrypted. * @ivlen (IN): Length of the IV * @byteoffset (IN): Offset in the Cipher BLOCK (applicable and to be set * for AES-128 CTR mode only) * @alg (IN): Type of ciphering algorithm: AES/DES/3DES * @mode (IN): Mode use when using AES algorithm: ECB/CBC/CTR * Applicable when using AES algorithm only * @op (IN): Type of operation: QCEDEV_OPER_DEC/QCEDEV_OPER_ENC or * QCEDEV_OPER_ENC_NO_KEY/QCEDEV_OPER_DEC_NO_KEY * * If use_pmem is set to 0, the driver assumes that memory was not allocated * via PMEM, and kernel will need to allocate memory and copy data from user * space buffer (data_src/dta_dst) and process accordingly and copy data back * to the user space buffer * * If use_pmem is set to 1, the driver assumes that memory was allocated via * PMEM. * The kernel driver will use the fd_src to determine the kernel virtual address * base that maps to the user space virtual address base for the buffer * allocated in user space. * The final input/src and output/dst buffer pointer will be determined * by adding the offsets to the kernel virtual addr. * * If use of hardware key is supported in the target, user can configure the * key parameters (encklen, enckey) to use the hardware key. * In order to use the hardware key, set encklen to 0 and set the enckey * data array to 0. */ struct compat_qcedev_cipher_op_req { uint8_t use_pmem; union { struct compat_qcedev_pmem_info pmem; struct compat_qcedev_vbuf_info vbuf; }; compat_ulong_t entries; compat_ulong_t data_len; uint8_t in_place_op; uint8_t enckey[QCEDEV_MAX_KEY_SIZE]; compat_ulong_t encklen; uint8_t iv[QCEDEV_MAX_IV_SIZE]; compat_ulong_t ivlen; compat_ulong_t byteoffset; enum qcedev_cipher_alg_enum alg; enum qcedev_cipher_mode_enum mode; enum qcedev_oper_enum op; }; /** * struct qcedev_sha_op_req - Holds the hashing request information * @data (IN): Array of pointers to the data to be hashed * @entries (IN): Number of buf_info entries in the data array * @data_len (IN): Length of data to be hashed * @digest (IN/OUT): Returns the hashed data information * @diglen (OUT): Size of the hashed/digest data * @authkey (IN): Pointer to authentication key for HMAC * @authklen (IN): Size of the authentication key * @alg (IN): Secure Hash algorithm */ struct compat_qcedev_sha_op_req { struct compat_buf_info data[QCEDEV_MAX_BUFFERS]; compat_ulong_t entries; compat_ulong_t data_len; uint8_t digest[QCEDEV_MAX_SHA_DIGEST]; compat_ulong_t diglen; compat_uptr_t authkey; compat_ulong_t authklen; enum qcedev_sha_alg_enum alg; }; /** * struct compact_qcedev_map_buf_req - Holds the mapping request information * fd (IN): Array of fds. * num_fds (IN): Number of fds in fd[]. * fd_size (IN): Array of sizes corresponding to each fd in fd[]. * fd_offset (IN): Array of offset corresponding to each fd in fd[]. * vaddr (OUT): Array of mapped virtual address corresponding to * each fd in fd[]. */ struct compat_qcedev_map_buf_req { compat_long_t fd[QCEDEV_MAX_BUFFERS]; compat_ulong_t num_fds; compat_ulong_t fd_size[QCEDEV_MAX_BUFFERS]; compat_ulong_t fd_offset[QCEDEV_MAX_BUFFERS]; compat_u64 buf_vaddr[QCEDEV_MAX_BUFFERS]; }; /** * struct compat_qcedev_unmap_buf_req - Holds the hashing request information * fd (IN): Array of fds to unmap * num_fds (IN): Number of fds in fd[]. */ struct compat_qcedev_unmap_buf_req { compat_long_t fd[QCEDEV_MAX_BUFFERS]; compat_ulong_t num_fds; }; struct file; extern long compat_qcedev_ioctl(struct file *file, unsigned int cmd, unsigned long arg); #define COMPAT_QCEDEV_IOCTL_ENC_REQ \ _IOWR(QCEDEV_IOC_MAGIC, 1, struct compat_qcedev_cipher_op_req) #define COMPAT_QCEDEV_IOCTL_DEC_REQ \ _IOWR(QCEDEV_IOC_MAGIC, 2, struct compat_qcedev_cipher_op_req) #define COMPAT_QCEDEV_IOCTL_SHA_INIT_REQ \ _IOWR(QCEDEV_IOC_MAGIC, 3, struct compat_qcedev_sha_op_req) #define COMPAT_QCEDEV_IOCTL_SHA_UPDATE_REQ \ _IOWR(QCEDEV_IOC_MAGIC, 4, struct compat_qcedev_sha_op_req) #define COMPAT_QCEDEV_IOCTL_SHA_FINAL_REQ \ _IOWR(QCEDEV_IOC_MAGIC, 5, struct compat_qcedev_sha_op_req) #define COMPAT_QCEDEV_IOCTL_GET_SHA_REQ \ _IOWR(QCEDEV_IOC_MAGIC, 6, struct compat_qcedev_sha_op_req) #define COMPAT_QCEDEV_IOCTL_LOCK_CE \ _IO(QCEDEV_IOC_MAGIC, 7) #define COMPAT_QCEDEV_IOCTL_UNLOCK_CE \ _IO(QCEDEV_IOC_MAGIC, 8) #define COMPAT_QCEDEV_IOCTL_GET_CMAC_REQ \ _IOWR(QCEDEV_IOC_MAGIC, 9, struct compat_qcedev_sha_op_req) #define COMPAT_QCEDEV_IOCTL_MAP_BUF_REQ \ _IOWR(QCEDEV_IOC_MAGIC, 10, struct compat_qcedev_map_buf_req) #define COMPAT_QCEDEV_IOCTL_UNMAP_BUF_REQ \ _IOWR(QCEDEV_IOC_MAGIC, 11, struct compat_qcedev_unmap_buf_req) #endif /* CONFIG_COMPAT */ #endif /* _UAPI_COMPAT_QCEDEV__H */