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52 lines
1.4 KiB
52 lines
1.4 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* Copyright (C) 2012-2019 ARM Limited (or its affiliates). */ |
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#ifndef __CC_SRAM_MGR_H__ |
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#define __CC_SRAM_MGR_H__ |
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#ifndef CC_CC_SRAM_SIZE |
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#define CC_CC_SRAM_SIZE 4096 |
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#endif |
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struct cc_drvdata; |
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#define NULL_SRAM_ADDR ((u32)-1) |
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/** |
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* cc_sram_mgr_init() - 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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* @drvdata: Associated device driver context |
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* |
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* Return: |
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* Zero for success, negative value otherwise. |
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*/ |
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int cc_sram_mgr_init(struct cc_drvdata *drvdata); |
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/** |
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* cc_sram_alloc() - Allocate buffer from SRAM pool. |
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* |
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* @drvdata: Associated device driver context |
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* @size: The requested bytes to allocate |
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* |
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* Return: |
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* Address offset in SRAM or NULL_SRAM_ADDR for failure. |
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*/ |
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u32 cc_sram_alloc(struct cc_drvdata *drvdata, u32 size); |
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/** |
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* cc_set_sram_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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* @nelement: 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 cc_set_sram_desc(const u32 *src, u32 dst, unsigned int nelement, |
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struct cc_hw_desc *seq, unsigned int *seq_len); |
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#endif /*__CC_SRAM_MGR_H__*/
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