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59 lines
1.7 KiB
59 lines
1.7 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* Copyright (C) 2012-2019 ARM Limited (or its affiliates). */ |
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#ifndef _CC_LLI_DEFS_H_ |
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#define _CC_LLI_DEFS_H_ |
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#include <linux/types.h> |
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/* Max DLLI size |
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* AKA CC_DSCRPTR_QUEUE_WORD1_DIN_SIZE_BIT_SIZE |
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*/ |
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#define DLLI_SIZE_BIT_SIZE 0x18 |
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#define CC_MAX_MLLI_ENTRY_SIZE 0xFFFF |
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#define LLI_MAX_NUM_OF_DATA_ENTRIES 128 |
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#define LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES 8 |
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#define MLLI_TABLE_MIN_ALIGNMENT 4 /* 32 bit alignment */ |
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#define MAX_NUM_OF_BUFFERS_IN_MLLI 4 |
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#define MAX_NUM_OF_TOTAL_MLLI_ENTRIES \ |
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(2 * LLI_MAX_NUM_OF_DATA_ENTRIES + \ |
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LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES) |
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/* Size of entry */ |
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#define LLI_ENTRY_WORD_SIZE 2 |
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#define LLI_ENTRY_BYTE_SIZE (LLI_ENTRY_WORD_SIZE * sizeof(u32)) |
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/* Word0[31:0] = ADDR[31:0] */ |
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#define LLI_WORD0_OFFSET 0 |
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#define LLI_LADDR_BIT_OFFSET 0 |
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#define LLI_LADDR_BIT_SIZE 32 |
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/* Word1[31:16] = ADDR[47:32]; Word1[15:0] = SIZE */ |
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#define LLI_WORD1_OFFSET 1 |
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#define LLI_SIZE_BIT_OFFSET 0 |
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#define LLI_SIZE_BIT_SIZE 16 |
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#define LLI_HADDR_BIT_OFFSET 16 |
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#define LLI_HADDR_BIT_SIZE 16 |
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#define LLI_SIZE_MASK GENMASK((LLI_SIZE_BIT_SIZE - 1), LLI_SIZE_BIT_OFFSET) |
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#define LLI_HADDR_MASK GENMASK( \ |
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(LLI_HADDR_BIT_OFFSET + LLI_HADDR_BIT_SIZE - 1),\ |
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LLI_HADDR_BIT_OFFSET) |
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static inline void cc_lli_set_addr(u32 *lli_p, dma_addr_t addr) |
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{ |
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lli_p[LLI_WORD0_OFFSET] = (addr & U32_MAX); |
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#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT |
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lli_p[LLI_WORD1_OFFSET] &= ~LLI_HADDR_MASK; |
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lli_p[LLI_WORD1_OFFSET] |= FIELD_PREP(LLI_HADDR_MASK, (addr >> 32)); |
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#endif /* CONFIG_ARCH_DMA_ADDR_T_64BIT */ |
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} |
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static inline void cc_lli_set_size(u32 *lli_p, u16 size) |
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{ |
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lli_p[LLI_WORD1_OFFSET] &= ~LLI_SIZE_MASK; |
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lli_p[LLI_WORD1_OFFSET] |= FIELD_PREP(LLI_SIZE_MASK, size); |
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} |
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#endif /*_CC_LLI_DEFS_H_*/
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