diff options
Diffstat (limited to 'drivers/crypto/ccree/cc_lli_defs.h')
-rw-r--r-- | drivers/crypto/ccree/cc_lli_defs.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/drivers/crypto/ccree/cc_lli_defs.h b/drivers/crypto/ccree/cc_lli_defs.h new file mode 100644 index 0000000000..f891ab813f --- /dev/null +++ b/drivers/crypto/ccree/cc_lli_defs.h @@ -0,0 +1,59 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2012-2019 ARM Limited (or its affiliates). */ + +#ifndef _CC_LLI_DEFS_H_ +#define _CC_LLI_DEFS_H_ + +#include <linux/types.h> + +/* Max DLLI size + * AKA CC_DSCRPTR_QUEUE_WORD1_DIN_SIZE_BIT_SIZE + */ +#define DLLI_SIZE_BIT_SIZE 0x18 + +#define CC_MAX_MLLI_ENTRY_SIZE 0xFFFF + +#define LLI_MAX_NUM_OF_DATA_ENTRIES 128 +#define LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES 8 +#define MLLI_TABLE_MIN_ALIGNMENT 4 /* 32 bit alignment */ +#define MAX_NUM_OF_BUFFERS_IN_MLLI 4 +#define MAX_NUM_OF_TOTAL_MLLI_ENTRIES \ + (2 * LLI_MAX_NUM_OF_DATA_ENTRIES + \ + LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES) + +/* Size of entry */ +#define LLI_ENTRY_WORD_SIZE 2 +#define LLI_ENTRY_BYTE_SIZE (LLI_ENTRY_WORD_SIZE * sizeof(u32)) + +/* Word0[31:0] = ADDR[31:0] */ +#define LLI_WORD0_OFFSET 0 +#define LLI_LADDR_BIT_OFFSET 0 +#define LLI_LADDR_BIT_SIZE 32 +/* Word1[31:16] = ADDR[47:32]; Word1[15:0] = SIZE */ +#define LLI_WORD1_OFFSET 1 +#define LLI_SIZE_BIT_OFFSET 0 +#define LLI_SIZE_BIT_SIZE 16 +#define LLI_HADDR_BIT_OFFSET 16 +#define LLI_HADDR_BIT_SIZE 16 + +#define LLI_SIZE_MASK GENMASK((LLI_SIZE_BIT_SIZE - 1), LLI_SIZE_BIT_OFFSET) +#define LLI_HADDR_MASK GENMASK( \ + (LLI_HADDR_BIT_OFFSET + LLI_HADDR_BIT_SIZE - 1),\ + LLI_HADDR_BIT_OFFSET) + +static inline void cc_lli_set_addr(u32 *lli_p, dma_addr_t addr) +{ + lli_p[LLI_WORD0_OFFSET] = (addr & U32_MAX); +#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT + lli_p[LLI_WORD1_OFFSET] &= ~LLI_HADDR_MASK; + lli_p[LLI_WORD1_OFFSET] |= FIELD_PREP(LLI_HADDR_MASK, (addr >> 32)); +#endif /* CONFIG_ARCH_DMA_ADDR_T_64BIT */ +} + +static inline void cc_lli_set_size(u32 *lli_p, u16 size) +{ + lli_p[LLI_WORD1_OFFSET] &= ~LLI_SIZE_MASK; + lli_p[LLI_WORD1_OFFSET] |= FIELD_PREP(LLI_SIZE_MASK, size); +} + +#endif /*_CC_LLI_DEFS_H_*/ |