Commit fd1bb4c9 authored Jun 25, 2014 by Florian Fainelli Committed by Ralf Baechle Aug 02, 2014

MIPS: Document the cca= command-line parameter



Commit 35133692 ("[MIPS] Allow setting
of the cache attribute at run time") introduced the 'cca=' kernel
command-line parameter which allows overriding the kernel pages
cacheable attributes, document that parameter.

[ralf@linux-mips.org: replace @mips.com email addresses with it's imgtec.com
equivalent in this commit message.  Rephrase slightly for a bit more
pedantic correctness.]

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: blogic@openwrt.org
Cc: anemo@mba.ocn.ne.jp
Cc: chris.dearman@imgtec.com
Patchwork: https://patchwork.linux-mips.org/patch/7182/


Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

parent c55b2851

Documentation/kernel-parameters.txt

+6 −0

Original line number	Diff line number	Diff line
		@@ -566,6 +566,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
		possible to determine what the correct size should be.
		This option provides an override for these situations.

		cca= [MIPS] Override the kernel pages' cache coherency
		algorithm. Accepted values range from 0 to 7
		inclusive. See arch/mips/include/asm/pgtable-bits.h
		for platform specific values (SB1, Loongson3 and
		others).

		ccw_timeout_log [S390]
		See Documentation/s390/CommonIO for details.