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author | Vaibhav Jain <vaibhav@linux.ibm.com> | 2023-08-18 10:37:37 +0530 |
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committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-08-18 21:19:13 +1000 |
commit | 0ceef6e99cc3a57f33b84dafc6df5dfb3b28278d (patch) | |
tree | 020e5f3de5b21184c4635afa56734676bbe1821f /Documentation | |
parent | b949ee6801f4a47ae0e02845242c99af351c4d26 (diff) | |
download | linux-stable-0ceef6e99cc3a57f33b84dafc6df5dfb3b28278d.tar.gz linux-stable-0ceef6e99cc3a57f33b84dafc6df5dfb3b28278d.tar.bz2 linux-stable-0ceef6e99cc3a57f33b84dafc6df5dfb3b28278d.zip |
powerpc/idle: Add support for nohlt
This patch enables config option GENERIC_IDLE_POLL_SETUP for arch
powerpc. This adds support for kernel param 'nohlt'.
Powerpc kernel also supports another kernel boot-time param called
'powersave' which can also be used to disable all cpu idle-states and
forces CPU to an idle-loop similar to what cpu_idle_poll() does. This
patch however makes powerpc kernel-parameters better aligned to the
generic boot-time parameters.
Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230818050739.827851-1-vaibhav@linux.ibm.com
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index cac464386779..fd9f21b49582 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -3717,7 +3717,7 @@ nohibernate [HIBERNATION] Disable hibernation and resume. - nohlt [ARM,ARM64,MICROBLAZE,MIPS,SH] Forces the kernel to + nohlt [ARM,ARM64,MICROBLAZE,MIPS,PPC,SH] Forces the kernel to busy wait in do_idle() and not use the arch_cpu_idle() implementation; requires CONFIG_GENERIC_IDLE_POLL_SETUP to be effective. This is useful on platforms where the |