162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 262306a36Sopenharmony_ci/* Copyright (C) 2012-2019 ARM Limited (or its affiliates). */ 362306a36Sopenharmony_ci 462306a36Sopenharmony_ci#ifndef __CC_SRAM_MGR_H__ 562306a36Sopenharmony_ci#define __CC_SRAM_MGR_H__ 662306a36Sopenharmony_ci 762306a36Sopenharmony_ci#ifndef CC_CC_SRAM_SIZE 862306a36Sopenharmony_ci#define CC_CC_SRAM_SIZE 4096 962306a36Sopenharmony_ci#endif 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_cistruct cc_drvdata; 1262306a36Sopenharmony_ci 1362306a36Sopenharmony_ci#define NULL_SRAM_ADDR ((u32)-1) 1462306a36Sopenharmony_ci 1562306a36Sopenharmony_ci/** 1662306a36Sopenharmony_ci * cc_sram_mgr_init() - Initializes SRAM pool. 1762306a36Sopenharmony_ci * The first X bytes of SRAM are reserved for ROM usage, hence, pool 1862306a36Sopenharmony_ci * starts right after X bytes. 1962306a36Sopenharmony_ci * 2062306a36Sopenharmony_ci * @drvdata: Associated device driver context 2162306a36Sopenharmony_ci * 2262306a36Sopenharmony_ci * Return: 2362306a36Sopenharmony_ci * Zero for success, negative value otherwise. 2462306a36Sopenharmony_ci */ 2562306a36Sopenharmony_ciint cc_sram_mgr_init(struct cc_drvdata *drvdata); 2662306a36Sopenharmony_ci 2762306a36Sopenharmony_ci/** 2862306a36Sopenharmony_ci * cc_sram_alloc() - Allocate buffer from SRAM pool. 2962306a36Sopenharmony_ci * 3062306a36Sopenharmony_ci * @drvdata: Associated device driver context 3162306a36Sopenharmony_ci * @size: The requested bytes to allocate 3262306a36Sopenharmony_ci * 3362306a36Sopenharmony_ci * Return: 3462306a36Sopenharmony_ci * Address offset in SRAM or NULL_SRAM_ADDR for failure. 3562306a36Sopenharmony_ci */ 3662306a36Sopenharmony_ciu32 cc_sram_alloc(struct cc_drvdata *drvdata, u32 size); 3762306a36Sopenharmony_ci 3862306a36Sopenharmony_ci/** 3962306a36Sopenharmony_ci * cc_set_sram_desc() - Create const descriptors sequence to 4062306a36Sopenharmony_ci * set values in given array into SRAM. 4162306a36Sopenharmony_ci * Note: each const value can't exceed word size. 4262306a36Sopenharmony_ci * 4362306a36Sopenharmony_ci * @src: A pointer to array of words to set as consts. 4462306a36Sopenharmony_ci * @dst: The target SRAM buffer to set into 4562306a36Sopenharmony_ci * @nelement: The number of words in "src" array 4662306a36Sopenharmony_ci * @seq: A pointer to the given IN/OUT descriptor sequence 4762306a36Sopenharmony_ci * @seq_len: A pointer to the given IN/OUT sequence length 4862306a36Sopenharmony_ci */ 4962306a36Sopenharmony_civoid cc_set_sram_desc(const u32 *src, u32 dst, unsigned int nelement, 5062306a36Sopenharmony_ci struct cc_hw_desc *seq, unsigned int *seq_len); 5162306a36Sopenharmony_ci 5262306a36Sopenharmony_ci#endif /*__CC_SRAM_MGR_H__*/ 53