diff options
| author | Florian Fainelli <f.fainelli@gmail.com> | 2014-06-25 16:41:13 -0700 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-08-02 00:06:41 +0200 |
| commit | fd1bb4c9fc2c3df4d226acd2c277f479600cf7e0 (patch) | |
| tree | 7fe75baaa81b56a6f95cb7b4ac8524fe1ed2e301 /Documentation/kernel-parameters.txt | |
| parent | c55b2851f901215fbfa46e4ea9cc04761c776815 (diff) | |
MIPS: Document the cca= command-line parameter
Commit 351336929ccf222ae38ff0cb7a8dd5fd5c6236a0 ("[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>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index c1b9aa8c5a52..ea4f2dfba19a 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -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. |