1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Copyright 2008-2014 Freescale Semiconductor, Inc. 4 * 5 */ 6 7 #ifndef __JR_H 8 #define __JR_H 9 10 #include <linux/compiler.h> 11 12 #define JR_SIZE 4 13 /* Timeout currently defined as 90 sec */ 14 #define CONFIG_SEC_DEQ_TIMEOUT 90000000U 15 16 #define DEFAULT_JR_ID 0 17 #define DEFAULT_JR_LIODN 0 18 #define DEFAULT_IRQ 0 /* Interrupts not to be configured */ 19 20 #define MCFGR_SWRST ((uint32_t)(1)<<31) /* Software Reset */ 21 #define MCFGR_DMA_RST ((uint32_t)(1)<<28) /* DMA Reset */ 22 #define MCFGR_PS_SHIFT 16 23 #define MCFGR_AWCACHE_SHIFT 8 24 #define MCFGR_AWCACHE_MASK (0xf << MCFGR_AWCACHE_SHIFT) 25 #define MCFGR_ARCACHE_SHIFT 12 26 #define MCFGR_ARCACHE_MASK (0xf << MCFGR_ARCACHE_SHIFT) 27 28 #define JR_INTMASK 0x00000001 29 #define JRCR_RESET 0x01 30 #define JRINT_ERR_HALT_INPROGRESS 0x4 31 #define JRINT_ERR_HALT_MASK 0xc 32 #define JRNSLIODN_SHIFT 16 33 #define JRNSLIODN_MASK 0x0fff0000 34 #define JRSLIODN_SHIFT 0 35 #define JRSLIODN_MASK 0x00000fff 36 37 #define JQ_DEQ_ERR -1 38 #define JQ_DEQ_TO_ERR -2 39 #define JQ_ENQ_ERR -3 40 41 #define RNG4_MAX_HANDLES 2 42 43 struct op_ring { 44 phys_addr_t desc; 45 uint32_t status; 46 } __packed; 47 48 struct jr_info { 49 void (*callback)(uint32_t status, void *arg); 50 phys_addr_t desc_phys_addr; 51 uint32_t desc_len; 52 uint32_t op_done; 53 void *arg; 54 }; 55 56 struct jobring { 57 int jq_id; 58 int irq; 59 int liodn; 60 /* Head is the index where software would enq the descriptor in 61 * the i/p ring 62 */ 63 int head; 64 /* Tail index would be used by s/w ehile enqueuing to determine if 65 * there is any space left in the s/w maintained i/p rings 66 */ 67 /* Also in case of deq tail will be incremented only in case of 68 * in-order job completion 69 */ 70 int tail; 71 /* Read index of the output ring. It may not match with tail in case 72 * of out of order completetion 73 */ 74 int read_idx; 75 /* Write index to input ring. Would be always equal to head */ 76 int write_idx; 77 /* Size of the rings. */ 78 int size; 79 /* Op ring size aligned to cache line size */ 80 int op_size; 81 /* The ip and output rings have to be accessed by SEC. So the 82 * pointers will ahve to point to the housekeeping region provided 83 * by SEC 84 */ 85 /*Circular Ring of i/p descriptors */ 86 dma_addr_t *input_ring; 87 /* Circular Ring of o/p descriptors */ 88 /* Circula Ring containing info regarding descriptors in i/p 89 * and o/p ring 90 */ 91 /* This ring can be on the stack */ 92 struct jr_info info[JR_SIZE]; 93 struct op_ring *output_ring; 94 /* Offset in CCSR to the SEC engine to which this JR belongs */ 95 uint32_t sec_offset; 96 97 }; 98 99 struct result { 100 int done; 101 uint32_t status; 102 }; 103 104 void caam_jr_strstatus(u32 status); 105 int run_descriptor_jr(uint32_t *desc); 106 107 #endif 108