1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* Copyright (C) 2012-2019 ARM Limited (or its affiliates). */ |
3 | |
4 | #ifndef __CC_SRAM_MGR_H__ |
5 | #define __CC_SRAM_MGR_H__ |
6 | |
7 | #ifndef CC_CC_SRAM_SIZE |
8 | #define CC_CC_SRAM_SIZE 4096 |
9 | #endif |
10 | |
11 | struct cc_drvdata; |
12 | |
13 | #define NULL_SRAM_ADDR ((u32)-1) |
14 | |
15 | /** |
16 | * cc_sram_mgr_init() - Initializes SRAM pool. |
17 | * The first X bytes of SRAM are reserved for ROM usage, hence, pool |
18 | * starts right after X bytes. |
19 | * |
20 | * @drvdata: Associated device driver context |
21 | * |
22 | * Return: |
23 | * Zero for success, negative value otherwise. |
24 | */ |
25 | int cc_sram_mgr_init(struct cc_drvdata *drvdata); |
26 | |
27 | /** |
28 | * cc_sram_alloc() - Allocate buffer from SRAM pool. |
29 | * |
30 | * @drvdata: Associated device driver context |
31 | * @size: The requested bytes to allocate |
32 | * |
33 | * Return: |
34 | * Address offset in SRAM or NULL_SRAM_ADDR for failure. |
35 | */ |
36 | u32 cc_sram_alloc(struct cc_drvdata *drvdata, u32 size); |
37 | |
38 | /** |
39 | * cc_set_sram_desc() - Create const descriptors sequence to |
40 | * set values in given array into SRAM. |
41 | * Note: each const value can't exceed word size. |
42 | * |
43 | * @src: A pointer to array of words to set as consts. |
44 | * @dst: The target SRAM buffer to set into |
45 | * @nelement: The number of words in "src" array |
46 | * @seq: A pointer to the given IN/OUT descriptor sequence |
47 | * @seq_len: A pointer to the given IN/OUT sequence length |
48 | */ |
49 | void cc_set_sram_desc(const u32 *src, u32 dst, unsigned int nelement, |
50 | struct cc_hw_desc *seq, unsigned int *seq_len); |
51 | |
52 | #endif /*__CC_SRAM_MGR_H__*/ |
53 | |