/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2012-2019 ARM Limited (or its affiliates). */
#ifndef __CC_SRAM_MGR_H__
#define __CC_SRAM_MGR_H__
#ifndef CC_CC_SRAM_SIZE
#define CC_CC_SRAM_SIZE 4096
#endif
struct cc_drvdata;
#define NULL_SRAM_ADDR ((u32)-1 )
/**
* cc_sram_mgr_init ( ) - Initializes SRAM pool .
* The first X bytes of SRAM are reserved for ROM usage , hence , pool
* starts right after X bytes .
*
* @ drvdata : Associated device driver context
*
* Return :
* Zero for success , negative value otherwise .
*/
int cc_sram_mgr_init(struct cc_drvdata *drvdata);
/**
* cc_sram_alloc ( ) - Allocate buffer from SRAM pool .
*
* @ drvdata : Associated device driver context
* @ size : The requested bytes to allocate
*
* Return :
* Address offset in SRAM or NULL_SRAM_ADDR for failure .
*/
u32 cc_sram_alloc(struct cc_drvdata *drvdata, u32 size);
/**
* cc_set_sram_desc ( ) - Create const descriptors sequence to
* set values in given array into SRAM .
* Note : each const value can ' t exceed word size .
*
* @ src : A pointer to array of words to set as consts .
* @ dst : The target SRAM buffer to set into
* @ nelement : The number of words in " src " array
* @ seq : A pointer to the given IN / OUT descriptor sequence
* @ seq_len : A pointer to the given IN / OUT sequence length
*/
void cc_set_sram_desc(const u32 *src, u32 dst, unsigned int nelement,
struct cc_hw_desc *seq, unsigned int *seq_len);
#endif /*__CC_SRAM_MGR_H__*/
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