1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* Copyright (C) 2012-2019 ARM Limited (or its affiliates). */ 3*4882a593Smuzhiyun 4*4882a593Smuzhiyun #ifndef __CC_SRAM_MGR_H__ 5*4882a593Smuzhiyun #define __CC_SRAM_MGR_H__ 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #ifndef CC_CC_SRAM_SIZE 8*4882a593Smuzhiyun #define CC_CC_SRAM_SIZE 4096 9*4882a593Smuzhiyun #endif 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun struct cc_drvdata; 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #define NULL_SRAM_ADDR ((u32)-1) 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun /** 16*4882a593Smuzhiyun * cc_sram_mgr_init() - Initializes SRAM pool. 17*4882a593Smuzhiyun * The first X bytes of SRAM are reserved for ROM usage, hence, pool 18*4882a593Smuzhiyun * starts right after X bytes. 19*4882a593Smuzhiyun * 20*4882a593Smuzhiyun * @drvdata: Associated device driver context 21*4882a593Smuzhiyun * 22*4882a593Smuzhiyun * Return: 23*4882a593Smuzhiyun * Zero for success, negative value otherwise. 24*4882a593Smuzhiyun */ 25*4882a593Smuzhiyun int cc_sram_mgr_init(struct cc_drvdata *drvdata); 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun /** 28*4882a593Smuzhiyun * cc_sram_alloc() - Allocate buffer from SRAM pool. 29*4882a593Smuzhiyun * 30*4882a593Smuzhiyun * @drvdata: Associated device driver context 31*4882a593Smuzhiyun * @size: The requested bytes to allocate 32*4882a593Smuzhiyun * 33*4882a593Smuzhiyun * Return: 34*4882a593Smuzhiyun * Address offset in SRAM or NULL_SRAM_ADDR for failure. 35*4882a593Smuzhiyun */ 36*4882a593Smuzhiyun u32 cc_sram_alloc(struct cc_drvdata *drvdata, u32 size); 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun /** 39*4882a593Smuzhiyun * cc_set_sram_desc() - Create const descriptors sequence to 40*4882a593Smuzhiyun * set values in given array into SRAM. 41*4882a593Smuzhiyun * Note: each const value can't exceed word size. 42*4882a593Smuzhiyun * 43*4882a593Smuzhiyun * @src: A pointer to array of words to set as consts. 44*4882a593Smuzhiyun * @dst: The target SRAM buffer to set into 45*4882a593Smuzhiyun * @nelement: The number of words in "src" array 46*4882a593Smuzhiyun * @seq: A pointer to the given IN/OUT descriptor sequence 47*4882a593Smuzhiyun * @seq_len: A pointer to the given IN/OUT sequence length 48*4882a593Smuzhiyun */ 49*4882a593Smuzhiyun void cc_set_sram_desc(const u32 *src, u32 dst, unsigned int nelement, 50*4882a593Smuzhiyun struct cc_hw_desc *seq, unsigned int *seq_len); 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun #endif /*__CC_SRAM_MGR_H__*/ 53