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433b3b3d9f
LZO leaves some performance on the table by not realising that arm64 can optimize count-trailing-zeros bit operations. Add CONFIG_ARM64 to the checked definitions alongside CONFIG_X86_64 to enable the use of rbit/clz instructions on full 64-bit quantities. Link: http://lkml.kernel.org/r/20181127161913.23863-5-dave.rodgman@arm.com Link: http://lkml.kernel.org/r/20190205141950.9058-3-dave.rodgman@arm.com Signed-off-by: Matt Sealey <matt.sealey@arm.com> Signed-off-by: Dave Rodgman <dave.rodgman@arm.com> Cc: David S. Miller <davem@davemloft.net> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Markus F.X.J. Oberhumer <markus@oberhumer.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Nitin Gupta <nitingupta910@gmail.com> Cc: Richard Purdie <rpurdie@openedhand.com> Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> Cc: Sonny Rao <sonnyrao@google.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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drivers | ||
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include | ||
init | ||
ipc | ||
kernel | ||
lib | ||
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mm | ||
net | ||
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security | ||
sound | ||
tools | ||
usr | ||
virt | ||
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COPYING | ||
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MAINTAINERS | ||
Makefile | ||
README |
Linux kernel ============ There are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. Please read Documentation/admin-guide/README.rst first. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. The formatted documentation can also be read online at: https://www.kernel.org/doc/html/latest/ There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.