7552eb210c
This adds an optimization to lzma decode to also read from the boot medium in chunks of 8 bytes if that is the general purpose register length instead of always 4 bytes. It depends on the cache / memory / spi controller whether this is faster, but it's likely to be either the same or faster. TESTED - google/vilboz: cached boot medium 64bit before - 32bit - 64bit after load FSP-M: 35,674 - 35,595 - 34,690 load ramstage: 42,134 - 43,378 - 40,882 load FSP-S: 24,954 - 25,496 - 24,368 - foxconn/g41m: uncached boot medium for testing 64bit before - 32bit - 64bit after load ramstage: 51,164 - 51,872 - 51,894 Change-Id: I890c075307c0aec877618d9902ea352ae42a3bfa Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/70175 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com> Reviewed-by: Julius Werner <jwerner@chromium.org>
67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
/*
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LzmaDecode.h
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LZMA Decoder interface
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LZMA SDK 4.40 Copyright (c) 1999-2006 Igor Pavlov (2006-05-01)
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http://www.7-zip.org/
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LZMA SDK is licensed under two licenses:
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1) GNU Lesser General Public License (GNU LGPL)
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2) Common Public License (CPL)
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It means that you can select one of these two licenses and
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follow rules of that license.
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SPECIAL EXCEPTION:
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Igor Pavlov, as the author of this code, expressly permits you to
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statically or dynamically link your code (or bind by name) to the
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interfaces of this file without subjecting your linked code to the
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terms of the CPL or GNU LGPL. Any modifications or additions
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to this file, however, are subject to the LGPL or CPL terms.
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*/
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#ifndef __LZMADECODE_H
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#define __LZMADECODE_H
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#include <types.h>
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typedef unsigned char Byte;
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typedef unsigned short UInt16;
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typedef unsigned int UInt32;
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typedef size_t SizeT;
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#define CProb UInt16
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#define LZMA_RESULT_OK 0
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#define LZMA_RESULT_DATA_ERROR 1
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#define LZMA_BASE_SIZE 1846
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#define LZMA_LIT_SIZE 768
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#define LZMA_PROPERTIES_SIZE 5
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typedef struct _CLzmaProperties {
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int lc;
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int lp;
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int pb;
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} CLzmaProperties;
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int LzmaDecodeProperties(CLzmaProperties *propsRes,
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const unsigned char *propsData, int size);
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#define LzmaGetNumProbs(Properties) (LZMA_BASE_SIZE + (LZMA_LIT_SIZE \
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<< ((Properties)->lc + (Properties)->lp)))
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#define kLzmaNeedInitId (-2)
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typedef struct _CLzmaDecoderState {
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CLzmaProperties Properties;
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CProb *Probs;
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} CLzmaDecoderState;
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int LzmaDecode(CLzmaDecoderState *vs,
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const unsigned char *inStream, SizeT inSize, SizeT *inSizeProcessed,
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unsigned char *outStream, SizeT outSize, SizeT *outSizeProcessed);
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#endif
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