81 lines
2.3 KiB
C
81 lines
2.3 KiB
C
/*
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* Copyright (C) 2012-2017 ARM Limited or its affiliates.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __SSI_SRAM_MGR_H__
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#define __SSI_SRAM_MGR_H__
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#ifndef SSI_CC_SRAM_SIZE
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#define SSI_CC_SRAM_SIZE 4096
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#endif
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struct ssi_drvdata;
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/**
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* Address (offset) within CC internal SRAM
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*/
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typedef uint64_t ssi_sram_addr_t;
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#define NULL_SRAM_ADDR ((ssi_sram_addr_t)-1)
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/*!
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* Initializes SRAM pool.
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* The first X bytes of SRAM are reserved for ROM usage, hence, pool
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* starts right after X bytes.
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*
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* \param drvdata
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*
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* \return int Zero for success, negative value otherwise.
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*/
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int ssi_sram_mgr_init(struct ssi_drvdata *drvdata);
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/*!
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* Uninits SRAM pool.
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*
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* \param drvdata
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*/
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void ssi_sram_mgr_fini(struct ssi_drvdata *drvdata);
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/*!
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* Allocated buffer from SRAM pool.
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* Note: Caller is responsible to free the LAST allocated buffer.
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* This function does not taking care of any fragmentation may occur
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* by the order of calls to alloc/free.
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*
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* \param drvdata
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* \param size The requested bytes to allocate
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*/
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ssi_sram_addr_t ssi_sram_mgr_alloc(struct ssi_drvdata *drvdata, uint32_t size);
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/**
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* ssi_sram_mgr_const2sram_desc() - Create const descriptors sequence to
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* set values in given array into SRAM.
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* Note: each const value can't exceed word size.
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*
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* @src: A pointer to array of words to set as consts.
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* @dst: The target SRAM buffer to set into
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* @nelements: The number of words in "src" array
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* @seq: A pointer to the given IN/OUT descriptor sequence
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* @seq_len: A pointer to the given IN/OUT sequence length
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*/
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void ssi_sram_mgr_const2sram_desc(
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const uint32_t *src, ssi_sram_addr_t dst,
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unsigned int nelement,
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HwDesc_s *seq, unsigned int *seq_len);
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#endif /*__SSI_SRAM_MGR_H__*/
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