1 /*
2  * Copyright (c) 2001-2019, Arm Limited and Contributors. All rights reserved.
3  *
4  * SPDX-License-Identifier: BSD-3-Clause
5  */
6 
7 
8 #ifndef _CC_LLI_DEFS_H_
9 #define _CC_LLI_DEFS_H_
10 #ifdef __KERNEL__
11 #include <linux/types.h>
12 #else
13 #include <stdint.h>
14 #endif
15 #include "cc_bitops.h"
16 
17 /* Max DLLI size */
18 #define DLLI_SIZE_BIT_SIZE  0x18    // DX_DSCRPTR_QUEUE_WORD1_DIN_SIZE_BIT_SIZE
19 
20 #define CC_MAX_MLLI_ENTRY_SIZE 0x10000
21 
22 #define LLI_SET_ADDR(lli_p, addr) \
23         BITFIELD_SET(((uint32_t *)(lli_p))[LLI_WORD0_OFFSET], LLI_LADDR_BIT_OFFSET, LLI_LADDR_BIT_SIZE, (addr & UINT32_MAX)); \
24         BITFIELD_SET(((uint32_t *)(lli_p))[LLI_WORD1_OFFSET], LLI_HADDR_BIT_OFFSET, LLI_HADDR_BIT_SIZE, ((addr >> 32) & UINT16_MAX));
25 
26 #define LLI_SET_SIZE(lli_p, size) \
27         BITFIELD_SET(((uint32_t *)(lli_p))[LLI_WORD1_OFFSET], LLI_SIZE_BIT_OFFSET, LLI_SIZE_BIT_SIZE, size)
28 
29 
30 /* Size of entry */
31 #define LLI_ENTRY_WORD_SIZE 2
32 #define LLI_ENTRY_BYTE_SIZE (LLI_ENTRY_WORD_SIZE * sizeof(uint32_t))
33 
34 /* Word0[31:0] = ADDR[31:0] */
35 #define LLI_WORD0_OFFSET 0
36 #define LLI_LADDR_BIT_OFFSET 0
37 #define LLI_LADDR_BIT_SIZE 32
38 /* Word1[31:16] = ADDR[47:32]; Word1[15:0] = SIZE */
39 #define LLI_WORD1_OFFSET 1
40 #define LLI_SIZE_BIT_OFFSET 0
41 #define LLI_SIZE_BIT_SIZE 16
42 #define LLI_HADDR_BIT_OFFSET 16
43 #define LLI_HADDR_BIT_SIZE 16
44 
45 
46 #endif /*_CC_LLI_DEFS_H_*/
47