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 JR_INTMASK 0x00000001 25 #define JRCR_RESET 0x01 26 #define JRINT_ERR_HALT_INPROGRESS 0x4 27 #define JRINT_ERR_HALT_MASK 0xc 28 #define JRNSLIODN_SHIFT 16 29 #define JRNSLIODN_MASK 0x0fff0000 30 #define JRSLIODN_SHIFT 0 31 #define JRSLIODN_MASK 0x00000fff 32 33 #define JQ_DEQ_ERR -1 34 #define JQ_DEQ_TO_ERR -2 35 #define JQ_ENQ_ERR -3 36 37 struct op_ring { 38 dma_addr_t desc; 39 uint32_t status; 40 } __packed; 41 42 struct jr_info { 43 void (*callback)(dma_addr_t desc, uint32_t status, void *arg); 44 dma_addr_t desc_phys_addr; 45 uint32_t desc_addr; 46 uint32_t desc_len; 47 uint32_t op_done; 48 void *arg; 49 }; 50 51 struct jobring { 52 int jq_id; 53 int irq; 54 int liodn; 55 /* Head is the index where software would enq the descriptor in 56 * the i/p ring 57 */ 58 int head; 59 /* Tail index would be used by s/w ehile enqueuing to determine if 60 * there is any space left in the s/w maintained i/p rings 61 */ 62 /* Also in case of deq tail will be incremented only in case of 63 * in-order job completion 64 */ 65 int tail; 66 /* Read index of the output ring. It may not match with tail in case 67 * of out of order completetion 68 */ 69 int read_idx; 70 /* Write index to input ring. Would be always equal to head */ 71 int write_idx; 72 /* Size of the rings. */ 73 int size; 74 /* The ip and output rings have to be accessed by SEC. So the 75 * pointers will ahve to point to the housekeeping region provided 76 * by SEC 77 */ 78 /*Circular Ring of i/p descriptors */ 79 dma_addr_t *input_ring; 80 /* Circular Ring of o/p descriptors */ 81 /* Circula Ring containing info regarding descriptors in i/p 82 * and o/p ring 83 */ 84 /* This ring can be on the stack */ 85 struct jr_info info[JR_SIZE]; 86 struct op_ring *output_ring; 87 }; 88 89 struct result { 90 int done; 91 uint32_t status; 92 }; 93 94 void caam_jr_strstatus(u32 status); 95 int run_descriptor_jr(uint32_t *desc); 96 97 #endif 98