163b94509STom Lendacky /* 263b94509STom Lendacky * AMD Cryptographic Coprocessor (CCP) driver 363b94509STom Lendacky * 4553d2374SGary R Hook * Copyright (C) 2013,2016 Advanced Micro Devices, Inc. 563b94509STom Lendacky * 663b94509STom Lendacky * Author: Tom Lendacky <thomas.lendacky@amd.com> 763b94509STom Lendacky * 863b94509STom Lendacky * This program is free software; you can redistribute it and/or modify 963b94509STom Lendacky * it under the terms of the GNU General Public License version 2 as 1063b94509STom Lendacky * published by the Free Software Foundation. 1163b94509STom Lendacky */ 1263b94509STom Lendacky 1363b94509STom Lendacky #ifndef __CCP_DEV_H__ 1463b94509STom Lendacky #define __CCP_DEV_H__ 1563b94509STom Lendacky 1663b94509STom Lendacky #include <linux/device.h> 1763b94509STom Lendacky #include <linux/pci.h> 1863b94509STom Lendacky #include <linux/spinlock.h> 1963b94509STom Lendacky #include <linux/mutex.h> 2063b94509STom Lendacky #include <linux/list.h> 2163b94509STom Lendacky #include <linux/wait.h> 2263b94509STom Lendacky #include <linux/dmapool.h> 2363b94509STom Lendacky #include <linux/hw_random.h> 248db88467STom Lendacky #include <linux/bitops.h> 2558ea8abfSGary R Hook #include <linux/interrupt.h> 2658ea8abfSGary R Hook #include <linux/irqreturn.h> 2758ea8abfSGary R Hook #include <linux/dmaengine.h> 2863b94509STom Lendacky 29553d2374SGary R Hook #define MAX_CCP_NAME_LEN 16 3063b94509STom Lendacky #define MAX_DMAPOOL_NAME_LEN 32 3163b94509STom Lendacky 3263b94509STom Lendacky #define MAX_HW_QUEUES 5 3363b94509STom Lendacky #define MAX_CMD_QLEN 100 3463b94509STom Lendacky 3563b94509STom Lendacky #define TRNG_RETRIES 10 3663b94509STom Lendacky 37126ae9adSTom Lendacky #define CACHE_NONE 0x00 38c4f4b325STom Lendacky #define CACHE_WB_NO_ALLOC 0xb7 39c4f4b325STom Lendacky 4063b94509STom Lendacky /****** Register Mappings ******/ 4163b94509STom Lendacky #define Q_MASK_REG 0x000 4263b94509STom Lendacky #define TRNG_OUT_REG 0x00c 4363b94509STom Lendacky #define IRQ_MASK_REG 0x040 4463b94509STom Lendacky #define IRQ_STATUS_REG 0x200 4563b94509STom Lendacky 4663b94509STom Lendacky #define DEL_CMD_Q_JOB 0x124 4763b94509STom Lendacky #define DEL_Q_ACTIVE 0x00000200 4863b94509STom Lendacky #define DEL_Q_ID_SHIFT 6 4963b94509STom Lendacky 5063b94509STom Lendacky #define CMD_REQ0 0x180 5163b94509STom Lendacky #define CMD_REQ_INCR 0x04 5263b94509STom Lendacky 5363b94509STom Lendacky #define CMD_Q_STATUS_BASE 0x210 5463b94509STom Lendacky #define CMD_Q_INT_STATUS_BASE 0x214 5563b94509STom Lendacky #define CMD_Q_STATUS_INCR 0x20 5663b94509STom Lendacky 57c4f4b325STom Lendacky #define CMD_Q_CACHE_BASE 0x228 5863b94509STom Lendacky #define CMD_Q_CACHE_INC 0x20 5963b94509STom Lendacky 608db88467STom Lendacky #define CMD_Q_ERROR(__qs) ((__qs) & 0x0000003f) 618db88467STom Lendacky #define CMD_Q_DEPTH(__qs) (((__qs) >> 12) & 0x0000000f) 6263b94509STom Lendacky 6363b94509STom Lendacky /****** REQ0 Related Values ******/ 6463b94509STom Lendacky #define REQ0_WAIT_FOR_WRITE 0x00000004 6563b94509STom Lendacky #define REQ0_INT_ON_COMPLETE 0x00000002 6663b94509STom Lendacky #define REQ0_STOP_ON_COMPLETE 0x00000001 6763b94509STom Lendacky 6863b94509STom Lendacky #define REQ0_CMD_Q_SHIFT 9 6963b94509STom Lendacky #define REQ0_JOBID_SHIFT 3 7063b94509STom Lendacky 7163b94509STom Lendacky /****** REQ1 Related Values ******/ 7263b94509STom Lendacky #define REQ1_PROTECT_SHIFT 27 7363b94509STom Lendacky #define REQ1_ENGINE_SHIFT 23 7463b94509STom Lendacky #define REQ1_KEY_KSB_SHIFT 2 7563b94509STom Lendacky 7663b94509STom Lendacky #define REQ1_EOM 0x00000002 7763b94509STom Lendacky #define REQ1_INIT 0x00000001 7863b94509STom Lendacky 7963b94509STom Lendacky /* AES Related Values */ 8063b94509STom Lendacky #define REQ1_AES_TYPE_SHIFT 21 8163b94509STom Lendacky #define REQ1_AES_MODE_SHIFT 18 8263b94509STom Lendacky #define REQ1_AES_ACTION_SHIFT 17 8363b94509STom Lendacky #define REQ1_AES_CFB_SIZE_SHIFT 10 8463b94509STom Lendacky 8563b94509STom Lendacky /* XTS-AES Related Values */ 8663b94509STom Lendacky #define REQ1_XTS_AES_SIZE_SHIFT 10 8763b94509STom Lendacky 8863b94509STom Lendacky /* SHA Related Values */ 8963b94509STom Lendacky #define REQ1_SHA_TYPE_SHIFT 21 9063b94509STom Lendacky 9163b94509STom Lendacky /* RSA Related Values */ 9263b94509STom Lendacky #define REQ1_RSA_MOD_SIZE_SHIFT 10 9363b94509STom Lendacky 9463b94509STom Lendacky /* Pass-Through Related Values */ 9563b94509STom Lendacky #define REQ1_PT_BW_SHIFT 12 9663b94509STom Lendacky #define REQ1_PT_BS_SHIFT 10 9763b94509STom Lendacky 9863b94509STom Lendacky /* ECC Related Values */ 9963b94509STom Lendacky #define REQ1_ECC_AFFINE_CONVERT 0x00200000 10063b94509STom Lendacky #define REQ1_ECC_FUNCTION_SHIFT 18 10163b94509STom Lendacky 10263b94509STom Lendacky /****** REQ4 Related Values ******/ 10363b94509STom Lendacky #define REQ4_KSB_SHIFT 18 10463b94509STom Lendacky #define REQ4_MEMTYPE_SHIFT 16 10563b94509STom Lendacky 10663b94509STom Lendacky /****** REQ6 Related Values ******/ 10763b94509STom Lendacky #define REQ6_MEMTYPE_SHIFT 16 10863b94509STom Lendacky 10963b94509STom Lendacky /****** Key Storage Block ******/ 11063b94509STom Lendacky #define KSB_START 77 11163b94509STom Lendacky #define KSB_END 127 11263b94509STom Lendacky #define KSB_COUNT (KSB_END - KSB_START + 1) 11363b94509STom Lendacky #define CCP_KSB_BITS 256 11463b94509STom Lendacky #define CCP_KSB_BYTES 32 11563b94509STom Lendacky 11663b94509STom Lendacky #define CCP_JOBID_MASK 0x0000003f 11763b94509STom Lendacky 11863b94509STom Lendacky #define CCP_DMAPOOL_MAX_SIZE 64 1198db88467STom Lendacky #define CCP_DMAPOOL_ALIGN BIT(5) 12063b94509STom Lendacky 12163b94509STom Lendacky #define CCP_REVERSE_BUF_SIZE 64 12263b94509STom Lendacky 12363b94509STom Lendacky #define CCP_AES_KEY_KSB_COUNT 1 12463b94509STom Lendacky #define CCP_AES_CTX_KSB_COUNT 1 12563b94509STom Lendacky 12663b94509STom Lendacky #define CCP_XTS_AES_KEY_KSB_COUNT 1 12763b94509STom Lendacky #define CCP_XTS_AES_CTX_KSB_COUNT 1 12863b94509STom Lendacky 12963b94509STom Lendacky #define CCP_SHA_KSB_COUNT 1 13063b94509STom Lendacky 13163b94509STom Lendacky #define CCP_RSA_MAX_WIDTH 4096 13263b94509STom Lendacky 13363b94509STom Lendacky #define CCP_PASSTHRU_BLOCKSIZE 256 13463b94509STom Lendacky #define CCP_PASSTHRU_MASKSIZE 32 13563b94509STom Lendacky #define CCP_PASSTHRU_KSB_COUNT 1 13663b94509STom Lendacky 13763b94509STom Lendacky #define CCP_ECC_MODULUS_BYTES 48 /* 384-bits */ 13863b94509STom Lendacky #define CCP_ECC_MAX_OPERANDS 6 13963b94509STom Lendacky #define CCP_ECC_MAX_OUTPUTS 3 14063b94509STom Lendacky #define CCP_ECC_SRC_BUF_SIZE 448 14163b94509STom Lendacky #define CCP_ECC_DST_BUF_SIZE 192 14263b94509STom Lendacky #define CCP_ECC_OPERAND_SIZE 64 14363b94509STom Lendacky #define CCP_ECC_OUTPUT_SIZE 64 14463b94509STom Lendacky #define CCP_ECC_RESULT_OFFSET 60 14563b94509STom Lendacky #define CCP_ECC_RESULT_SUCCESS 0x0001 14663b94509STom Lendacky 147ea0375afSGary R Hook struct ccp_op; 148ea0375afSGary R Hook 149ea0375afSGary R Hook /* Structure for computation functions that are device-specific */ 150ea0375afSGary R Hook struct ccp_actions { 151ea0375afSGary R Hook int (*perform_aes)(struct ccp_op *); 152ea0375afSGary R Hook int (*perform_xts_aes)(struct ccp_op *); 153ea0375afSGary R Hook int (*perform_sha)(struct ccp_op *); 154ea0375afSGary R Hook int (*perform_rsa)(struct ccp_op *); 155ea0375afSGary R Hook int (*perform_passthru)(struct ccp_op *); 156ea0375afSGary R Hook int (*perform_ecc)(struct ccp_op *); 157ea0375afSGary R Hook int (*init)(struct ccp_device *); 158ea0375afSGary R Hook void (*destroy)(struct ccp_device *); 159ea0375afSGary R Hook irqreturn_t (*irqhandler)(int, void *); 160ea0375afSGary R Hook }; 161ea0375afSGary R Hook 162c7019c4dSGary R Hook /* Structure to hold CCP version-specific values */ 163c7019c4dSGary R Hook struct ccp_vdata { 164c7019c4dSGary R Hook unsigned int version; 165bc197b2aSJulia Lawall const struct ccp_actions *perform; 166c7019c4dSGary R Hook }; 167c7019c4dSGary R Hook 168c7019c4dSGary R Hook extern struct ccp_vdata ccpv3; 169c7019c4dSGary R Hook 17063b94509STom Lendacky struct ccp_device; 17163b94509STom Lendacky struct ccp_cmd; 17263b94509STom Lendacky 17358ea8abfSGary R Hook struct ccp_dma_cmd { 17458ea8abfSGary R Hook struct list_head entry; 17558ea8abfSGary R Hook 17658ea8abfSGary R Hook struct ccp_cmd ccp_cmd; 17758ea8abfSGary R Hook }; 17858ea8abfSGary R Hook 17958ea8abfSGary R Hook struct ccp_dma_desc { 18058ea8abfSGary R Hook struct list_head entry; 18158ea8abfSGary R Hook 18258ea8abfSGary R Hook struct ccp_device *ccp; 18358ea8abfSGary R Hook 18458ea8abfSGary R Hook struct list_head pending; 18558ea8abfSGary R Hook struct list_head active; 18658ea8abfSGary R Hook 18758ea8abfSGary R Hook enum dma_status status; 18858ea8abfSGary R Hook struct dma_async_tx_descriptor tx_desc; 18958ea8abfSGary R Hook size_t len; 19058ea8abfSGary R Hook }; 19158ea8abfSGary R Hook 19258ea8abfSGary R Hook struct ccp_dma_chan { 19358ea8abfSGary R Hook struct ccp_device *ccp; 19458ea8abfSGary R Hook 19558ea8abfSGary R Hook spinlock_t lock; 19658ea8abfSGary R Hook struct list_head pending; 19758ea8abfSGary R Hook struct list_head active; 19858ea8abfSGary R Hook struct list_head complete; 19958ea8abfSGary R Hook 20058ea8abfSGary R Hook struct tasklet_struct cleanup_tasklet; 20158ea8abfSGary R Hook 20258ea8abfSGary R Hook enum dma_status status; 20358ea8abfSGary R Hook struct dma_chan dma_chan; 20458ea8abfSGary R Hook }; 20558ea8abfSGary R Hook 20663b94509STom Lendacky struct ccp_cmd_queue { 20763b94509STom Lendacky struct ccp_device *ccp; 20863b94509STom Lendacky 20963b94509STom Lendacky /* Queue identifier */ 21063b94509STom Lendacky u32 id; 21163b94509STom Lendacky 21263b94509STom Lendacky /* Queue dma pool */ 21363b94509STom Lendacky struct dma_pool *dma_pool; 21463b94509STom Lendacky 21563b94509STom Lendacky /* Queue reserved KSB regions */ 21663b94509STom Lendacky u32 ksb_key; 21763b94509STom Lendacky u32 ksb_ctx; 21863b94509STom Lendacky 21963b94509STom Lendacky /* Queue processing thread */ 22063b94509STom Lendacky struct task_struct *kthread; 22163b94509STom Lendacky unsigned int active; 22263b94509STom Lendacky unsigned int suspended; 22363b94509STom Lendacky 22463b94509STom Lendacky /* Number of free command slots available */ 22563b94509STom Lendacky unsigned int free_slots; 22663b94509STom Lendacky 22763b94509STom Lendacky /* Interrupt masks */ 22863b94509STom Lendacky u32 int_ok; 22963b94509STom Lendacky u32 int_err; 23063b94509STom Lendacky 23163b94509STom Lendacky /* Register addresses for queue */ 23263b94509STom Lendacky void __iomem *reg_status; 23363b94509STom Lendacky void __iomem *reg_int_status; 23463b94509STom Lendacky 23563b94509STom Lendacky /* Status values from job */ 23663b94509STom Lendacky u32 int_status; 23763b94509STom Lendacky u32 q_status; 23863b94509STom Lendacky u32 q_int_status; 23963b94509STom Lendacky u32 cmd_error; 24063b94509STom Lendacky 24163b94509STom Lendacky /* Interrupt wait queue */ 24263b94509STom Lendacky wait_queue_head_t int_queue; 24363b94509STom Lendacky unsigned int int_rcvd; 24463b94509STom Lendacky } ____cacheline_aligned; 24563b94509STom Lendacky 24663b94509STom Lendacky struct ccp_device { 247553d2374SGary R Hook struct list_head entry; 248553d2374SGary R Hook 249c7019c4dSGary R Hook struct ccp_vdata *vdata; 250553d2374SGary R Hook unsigned int ord; 251553d2374SGary R Hook char name[MAX_CCP_NAME_LEN]; 252553d2374SGary R Hook char rngname[MAX_CCP_NAME_LEN]; 253553d2374SGary R Hook 25463b94509STom Lendacky struct device *dev; 25563b94509STom Lendacky 256*fa242e80SGary R Hook /* Bus specific device information 25763b94509STom Lendacky */ 25863b94509STom Lendacky void *dev_specific; 25963b94509STom Lendacky int (*get_irq)(struct ccp_device *ccp); 26063b94509STom Lendacky void (*free_irq)(struct ccp_device *ccp); 2613d77565bSTom Lendacky unsigned int irq; 26263b94509STom Lendacky 263*fa242e80SGary R Hook /* I/O area used for device communication. The register mapping 26463b94509STom Lendacky * starts at an offset into the mapped bar. 26563b94509STom Lendacky * The CMD_REQx registers and the Delete_Cmd_Queue_Job register 26663b94509STom Lendacky * need to be protected while a command queue thread is accessing 26763b94509STom Lendacky * them. 26863b94509STom Lendacky */ 26963b94509STom Lendacky struct mutex req_mutex ____cacheline_aligned; 27063b94509STom Lendacky void __iomem *io_map; 27163b94509STom Lendacky void __iomem *io_regs; 27263b94509STom Lendacky 273*fa242e80SGary R Hook /* Master lists that all cmds are queued on. Because there can be 27463b94509STom Lendacky * more than one CCP command queue that can process a cmd a separate 27563b94509STom Lendacky * backlog list is neeeded so that the backlog completion call 27663b94509STom Lendacky * completes before the cmd is available for execution. 27763b94509STom Lendacky */ 27863b94509STom Lendacky spinlock_t cmd_lock ____cacheline_aligned; 27963b94509STom Lendacky unsigned int cmd_count; 28063b94509STom Lendacky struct list_head cmd; 28163b94509STom Lendacky struct list_head backlog; 28263b94509STom Lendacky 283*fa242e80SGary R Hook /* The command queues. These represent the queues available on the 28463b94509STom Lendacky * CCP that are available for processing cmds 28563b94509STom Lendacky */ 28663b94509STom Lendacky struct ccp_cmd_queue cmd_q[MAX_HW_QUEUES]; 28763b94509STom Lendacky unsigned int cmd_q_count; 28863b94509STom Lendacky 289*fa242e80SGary R Hook /* Support for the CCP True RNG 29063b94509STom Lendacky */ 29163b94509STom Lendacky struct hwrng hwrng; 29263b94509STom Lendacky unsigned int hwrng_retries; 29363b94509STom Lendacky 294*fa242e80SGary R Hook /* Support for the CCP DMA capabilities 29558ea8abfSGary R Hook */ 29658ea8abfSGary R Hook struct dma_device dma_dev; 29758ea8abfSGary R Hook struct ccp_dma_chan *ccp_dma_chan; 29858ea8abfSGary R Hook struct kmem_cache *dma_cmd_cache; 29958ea8abfSGary R Hook struct kmem_cache *dma_desc_cache; 30058ea8abfSGary R Hook 301*fa242e80SGary R Hook /* A counter used to generate job-ids for cmds submitted to the CCP 30263b94509STom Lendacky */ 30363b94509STom Lendacky atomic_t current_id ____cacheline_aligned; 30463b94509STom Lendacky 305*fa242e80SGary R Hook /* The CCP uses key storage blocks (KSB) to maintain context for certain 30663b94509STom Lendacky * operations. To prevent multiple cmds from using the same KSB range 30763b94509STom Lendacky * a command queue reserves a KSB range for the duration of the cmd. 30863b94509STom Lendacky * Each queue, will however, reserve 2 KSB blocks for operations that 30963b94509STom Lendacky * only require single KSB entries (eg. AES context/iv and key) in order 31063b94509STom Lendacky * to avoid allocation contention. This will reserve at most 10 KSB 31163b94509STom Lendacky * entries, leaving 40 KSB entries available for dynamic allocation. 31263b94509STom Lendacky */ 31363b94509STom Lendacky struct mutex ksb_mutex ____cacheline_aligned; 31463b94509STom Lendacky DECLARE_BITMAP(ksb, KSB_COUNT); 31563b94509STom Lendacky wait_queue_head_t ksb_queue; 31663b94509STom Lendacky unsigned int ksb_avail; 31763b94509STom Lendacky unsigned int ksb_count; 31863b94509STom Lendacky u32 ksb_start; 31963b94509STom Lendacky 32063b94509STom Lendacky /* Suspend support */ 32163b94509STom Lendacky unsigned int suspending; 32263b94509STom Lendacky wait_queue_head_t suspend_queue; 323126ae9adSTom Lendacky 324126ae9adSTom Lendacky /* DMA caching attribute support */ 325126ae9adSTom Lendacky unsigned int axcache; 32663b94509STom Lendacky }; 32763b94509STom Lendacky 328ea0375afSGary R Hook enum ccp_memtype { 329ea0375afSGary R Hook CCP_MEMTYPE_SYSTEM = 0, 330ea0375afSGary R Hook CCP_MEMTYPE_KSB, 331ea0375afSGary R Hook CCP_MEMTYPE_LOCAL, 332ea0375afSGary R Hook CCP_MEMTYPE__LAST, 333ea0375afSGary R Hook }; 334ea0375afSGary R Hook 335ea0375afSGary R Hook struct ccp_dma_info { 336ea0375afSGary R Hook dma_addr_t address; 337ea0375afSGary R Hook unsigned int offset; 338ea0375afSGary R Hook unsigned int length; 339ea0375afSGary R Hook enum dma_data_direction dir; 340ea0375afSGary R Hook }; 341ea0375afSGary R Hook 342ea0375afSGary R Hook struct ccp_dm_workarea { 343ea0375afSGary R Hook struct device *dev; 344ea0375afSGary R Hook struct dma_pool *dma_pool; 345ea0375afSGary R Hook unsigned int length; 346ea0375afSGary R Hook 347ea0375afSGary R Hook u8 *address; 348ea0375afSGary R Hook struct ccp_dma_info dma; 349ea0375afSGary R Hook }; 350ea0375afSGary R Hook 351ea0375afSGary R Hook struct ccp_sg_workarea { 352ea0375afSGary R Hook struct scatterlist *sg; 353ea0375afSGary R Hook int nents; 354ea0375afSGary R Hook 355ea0375afSGary R Hook struct scatterlist *dma_sg; 356ea0375afSGary R Hook struct device *dma_dev; 357ea0375afSGary R Hook unsigned int dma_count; 358ea0375afSGary R Hook enum dma_data_direction dma_dir; 359ea0375afSGary R Hook 360ea0375afSGary R Hook unsigned int sg_used; 361ea0375afSGary R Hook 362ea0375afSGary R Hook u64 bytes_left; 363ea0375afSGary R Hook }; 364ea0375afSGary R Hook 365ea0375afSGary R Hook struct ccp_data { 366ea0375afSGary R Hook struct ccp_sg_workarea sg_wa; 367ea0375afSGary R Hook struct ccp_dm_workarea dm_wa; 368ea0375afSGary R Hook }; 369ea0375afSGary R Hook 370ea0375afSGary R Hook struct ccp_mem { 371ea0375afSGary R Hook enum ccp_memtype type; 372ea0375afSGary R Hook union { 373ea0375afSGary R Hook struct ccp_dma_info dma; 374ea0375afSGary R Hook u32 ksb; 375ea0375afSGary R Hook } u; 376ea0375afSGary R Hook }; 377ea0375afSGary R Hook 378ea0375afSGary R Hook struct ccp_aes_op { 379ea0375afSGary R Hook enum ccp_aes_type type; 380ea0375afSGary R Hook enum ccp_aes_mode mode; 381ea0375afSGary R Hook enum ccp_aes_action action; 382ea0375afSGary R Hook }; 383ea0375afSGary R Hook 384ea0375afSGary R Hook struct ccp_xts_aes_op { 385ea0375afSGary R Hook enum ccp_aes_action action; 386ea0375afSGary R Hook enum ccp_xts_aes_unit_size unit_size; 387ea0375afSGary R Hook }; 388ea0375afSGary R Hook 389ea0375afSGary R Hook struct ccp_sha_op { 390ea0375afSGary R Hook enum ccp_sha_type type; 391ea0375afSGary R Hook u64 msg_bits; 392ea0375afSGary R Hook }; 393ea0375afSGary R Hook 394ea0375afSGary R Hook struct ccp_rsa_op { 395ea0375afSGary R Hook u32 mod_size; 396ea0375afSGary R Hook u32 input_len; 397ea0375afSGary R Hook }; 398ea0375afSGary R Hook 399ea0375afSGary R Hook struct ccp_passthru_op { 400ea0375afSGary R Hook enum ccp_passthru_bitwise bit_mod; 401ea0375afSGary R Hook enum ccp_passthru_byteswap byte_swap; 402ea0375afSGary R Hook }; 403ea0375afSGary R Hook 404ea0375afSGary R Hook struct ccp_ecc_op { 405ea0375afSGary R Hook enum ccp_ecc_function function; 406ea0375afSGary R Hook }; 407ea0375afSGary R Hook 408ea0375afSGary R Hook struct ccp_op { 409ea0375afSGary R Hook struct ccp_cmd_queue *cmd_q; 410ea0375afSGary R Hook 411ea0375afSGary R Hook u32 jobid; 412ea0375afSGary R Hook u32 ioc; 413ea0375afSGary R Hook u32 soc; 414ea0375afSGary R Hook u32 ksb_key; 415ea0375afSGary R Hook u32 ksb_ctx; 416ea0375afSGary R Hook u32 init; 417ea0375afSGary R Hook u32 eom; 418ea0375afSGary R Hook 419ea0375afSGary R Hook struct ccp_mem src; 420ea0375afSGary R Hook struct ccp_mem dst; 421ea0375afSGary R Hook 422ea0375afSGary R Hook union { 423ea0375afSGary R Hook struct ccp_aes_op aes; 424ea0375afSGary R Hook struct ccp_xts_aes_op xts; 425ea0375afSGary R Hook struct ccp_sha_op sha; 426ea0375afSGary R Hook struct ccp_rsa_op rsa; 427ea0375afSGary R Hook struct ccp_passthru_op passthru; 428ea0375afSGary R Hook struct ccp_ecc_op ecc; 429ea0375afSGary R Hook } u; 430ea0375afSGary R Hook }; 431ea0375afSGary R Hook 432ea0375afSGary R Hook static inline u32 ccp_addr_lo(struct ccp_dma_info *info) 433ea0375afSGary R Hook { 434ea0375afSGary R Hook return lower_32_bits(info->address + info->offset); 435ea0375afSGary R Hook } 436ea0375afSGary R Hook 437ea0375afSGary R Hook static inline u32 ccp_addr_hi(struct ccp_dma_info *info) 438ea0375afSGary R Hook { 439ea0375afSGary R Hook return upper_32_bits(info->address + info->offset) & 0x0000ffff; 440ea0375afSGary R Hook } 441ea0375afSGary R Hook 44263b94509STom Lendacky int ccp_pci_init(void); 44363b94509STom Lendacky void ccp_pci_exit(void); 44463b94509STom Lendacky 445c4f4b325STom Lendacky int ccp_platform_init(void); 446c4f4b325STom Lendacky void ccp_platform_exit(void); 447c4f4b325STom Lendacky 448ea0375afSGary R Hook void ccp_add_device(struct ccp_device *ccp); 449ea0375afSGary R Hook void ccp_del_device(struct ccp_device *ccp); 45063b94509STom Lendacky 451ea0375afSGary R Hook struct ccp_device *ccp_alloc_struct(struct device *dev); 452ea0375afSGary R Hook bool ccp_queues_suspended(struct ccp_device *ccp); 453ea0375afSGary R Hook int ccp_cmd_queue_thread(void *data); 45463b94509STom Lendacky 45563b94509STom Lendacky int ccp_run_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd); 45663b94509STom Lendacky 45758ea8abfSGary R Hook int ccp_dmaengine_register(struct ccp_device *ccp); 45858ea8abfSGary R Hook void ccp_dmaengine_unregister(struct ccp_device *ccp); 45958ea8abfSGary R Hook 46063b94509STom Lendacky #endif 461