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