/* SPDX-License-Identifier: GPL-2.0 */ /* Copyright (C) 2012-2018 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 4 #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_*/