diff options
Diffstat (limited to 'drivers/crypto/fsl/jr.h')
| -rw-r--r-- | drivers/crypto/fsl/jr.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/drivers/crypto/fsl/jr.h b/drivers/crypto/fsl/jr.h new file mode 100644 index 0000000000..cce2c589ce --- /dev/null +++ b/drivers/crypto/fsl/jr.h @@ -0,0 +1,97 @@ +/* + * Copyright 2008-2014 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + * + */ + +#ifndef __JR_H +#define __JR_H + +#include <linux/compiler.h> + +#define JR_SIZE 4 +/* Timeout currently defined as 90 sec */ +#define CONFIG_SEC_DEQ_TIMEOUT 90000000U + +#define DEFAULT_JR_ID 0 +#define DEFAULT_JR_LIODN 0 +#define DEFAULT_IRQ 0 /* Interrupts not to be configured */ + +#define MCFGR_SWRST ((uint32_t)(1)<<31) /* Software Reset */ +#define MCFGR_DMA_RST ((uint32_t)(1)<<28) /* DMA Reset */ +#define MCFGR_PS_SHIFT 16 +#define JR_INTMASK 0x00000001 +#define JRCR_RESET 0x01 +#define JRINT_ERR_HALT_INPROGRESS 0x4 +#define JRINT_ERR_HALT_MASK 0xc +#define JRNSLIODN_SHIFT 16 +#define JRNSLIODN_MASK 0x0fff0000 +#define JRSLIODN_SHIFT 0 +#define JRSLIODN_MASK 0x00000fff + +#define JQ_DEQ_ERR -1 +#define JQ_DEQ_TO_ERR -2 +#define JQ_ENQ_ERR -3 + +struct op_ring { + dma_addr_t desc; + uint32_t status; +} __packed; + +struct jr_info { + void (*callback)(dma_addr_t desc, uint32_t status, void *arg); + dma_addr_t desc_phys_addr; + uint32_t desc_addr; + uint32_t desc_len; + uint32_t op_done; + void *arg; +}; + +struct jobring { + int jq_id; + int irq; + int liodn; + /* Head is the index where software would enq the descriptor in + * the i/p ring + */ + int head; + /* Tail index would be used by s/w ehile enqueuing to determine if + * there is any space left in the s/w maintained i/p rings + */ + /* Also in case of deq tail will be incremented only in case of + * in-order job completion + */ + int tail; + /* Read index of the output ring. It may not match with tail in case + * of out of order completetion + */ + int read_idx; + /* Write index to input ring. Would be always equal to head */ + int write_idx; + /* Size of the rings. */ + int size; + /* The ip and output rings have to be accessed by SEC. So the + * pointers will ahve to point to the housekeeping region provided + * by SEC + */ + /*Circular Ring of i/p descriptors */ + dma_addr_t *input_ring; + /* Circular Ring of o/p descriptors */ + /* Circula Ring containing info regarding descriptors in i/p + * and o/p ring + */ + /* This ring can be on the stack */ + struct jr_info info[JR_SIZE]; + struct op_ring *output_ring; +}; + +struct result { + int done; + uint32_t status; +}; + +void caam_jr_strstatus(u32 status); +int run_descriptor_jr(uint32_t *desc); + +#endif |
