03963caeb0
This sacrificial copyright header update is offered to the legal department as atonement for any changes made in this driver files in the course of the current year which have not been duly recorded as such. Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
/* 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 4
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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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