66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
|
/* 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;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Address (offset) within CC internal SRAM
|
||
|
|
*/
|
||
|
|
|
||
|
|
typedef u64 cc_sram_addr_t;
|
||
|
|
|
||
|
|
#define NULL_SRAM_ADDR ((cc_sram_addr_t)-1)
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* Initializes SRAM pool.
|
||
|
|
* The first X bytes of SRAM are reserved for ROM usage, hence, pool
|
||
|
|
* starts right after X bytes.
|
||
|
|
*
|
||
|
|
* \param drvdata
|
||
|
|
*
|
||
|
|
* \return int Zero for success, negative value otherwise.
|
||
|
|
*/
|
||
|
|
int cc_sram_mgr_init(struct cc_drvdata *drvdata);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* Uninits SRAM pool.
|
||
|
|
*
|
||
|
|
* \param drvdata
|
||
|
|
*/
|
||
|
|
void cc_sram_mgr_fini(struct cc_drvdata *drvdata);
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* Allocated buffer from SRAM pool.
|
||
|
|
* Note: Caller is responsible to free the LAST allocated buffer.
|
||
|
|
* This function does not taking care of any fragmentation may occur
|
||
|
|
* by the order of calls to alloc/free.
|
||
|
|
*
|
||
|
|
* \param drvdata
|
||
|
|
* \param size The requested bytes to allocate
|
||
|
|
*/
|
||
|
|
cc_sram_addr_t 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
|
||
|
|
* @nelements: 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, cc_sram_addr_t dst,
|
||
|
|
unsigned int nelement, struct cc_hw_desc *seq,
|
||
|
|
unsigned int *seq_len);
|
||
|
|
|
||
|
|
#endif /*__CC_SRAM_MGR_H__*/
|