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https://github.com/riscv-software-src/opensbi
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d6b684ec86
Add the FDT cache library so we can build up the cache topology via the 'next-level-cache' DT property. Co-developed-by: Vincent Chen <vincent.chen@sifive.com> Signed-off-by: Vincent Chen <vincent.chen@sifive.com> Co-developed-by: Andy Chiu <andy.chiu@sifive.com> Signed-off-by: Andy Chiu <andy.chiu@sifive.com> Signed-off-by: Nick Hu <nick.hu@sifive.com> Reviewed-by: Samuel Holland <samuel.holland@sifive.com> Reviewed-by: Anup Patel <anup@brainfault.org> Link: https://lore.kernel.org/r/20251020-cache-upstream-v7-2-69a132447d8a@sifive.com Signed-off-by: Anup Patel <anup@brainfault.org>
35 lines
911 B
C
35 lines
911 B
C
/*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2025 SiFive Inc.
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*/
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#ifndef __FDT_CACHE_H__
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#define __FDT_CACHE_H__
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#include <sbi_utils/cache/cache.h>
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/**
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* Register a cache device using information from the DT
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*
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* @param fdt devicetree blob
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* @param noff offset of a node in the devicetree blob
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* @param dev cache device to register for this devicetree node
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*
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* @return 0 on success, or a negative error code on failure
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*/
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int fdt_cache_add(const void *fdt, int noff, struct cache_device *dev);
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/**
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* Get the cache device referencd by the "next-level-cache" property of a DT node
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*
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* @param fdt devicetree blob
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* @param noff offset of a node in the devicetree blob
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* @param out_dev location to return the cache device
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*
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* @return 0 on success, or a negative error code on failure
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*/
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int fdt_next_cache_get(const void *fdt, int noff, struct cache_device **out_dev);
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#endif
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