]> git.baikalelectronics.ru Git - kernel.git/commit
projects / kernel.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 282e95e) | patch
[CPUFREQ] Longhaul - Check ACPI "BM DMA in progress" bit
authorRafał Bilski <rafalbilski@interia.pl>
Thu, 17 May 2007 20:39:02 +0000 (22:39 +0200)
committerDave Jones <davej@redhat.com>
Tue, 29 May 2007 20:56:39 +0000 (16:56 -0400)
commitb4f2c78e2fe0a36443dd1c9de822f68785aff43c
tree32f97c945aa842daa8d7ffeccc6633c6377980eatree | snapshot
parent282e95eea85b71a51741866d1f6efd8340b14a86commit | diff
[CPUFREQ] Longhaul - Check ACPI "BM DMA in progress" bit

It is good idea to wait for PCI bus to become idle before
frequency change. Thanks to ACPI it is possible. It makes
sense only when northbridge support is in use because it is
only case in which we can disable arbiter after check if PCI
bus is busy.

Signed-off-by: Rafal Bilski <rafalbilski@interia.pl>
Signed-off-by: Dave Jones <davej@redhat.com>
arch/i386/kernel/cpu/cpufreq/longhaul.c diff | blob | history
Linux Kernel Source Tree.