https://github.com/torvalds/linux
Revision 6110a1f43c27b516e16d5ce8860fca50748c2a87 authored by Suresh Siddha on 01 October 2010, 01:19:07 UTC, committed by Len Brown on 01 October 2010, 01:19:22 UTC
Avoid TLB flush IPIs for the cores in deeper c-states by voluntary leave_mm()
before entering into that state. CPUs tend to flush TLB in those c-states
anyways.

acpi_idle does this with C3-type states, but it was not caried over
when intel_idle was introduced.  intel_idle can apply it
to C-states in addition to those that ACPI might export as C3...

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
1 parent 9587a67
History
Tip revision: 6110a1f43c27b516e16d5ce8860fca50748c2a87 authored by Suresh Siddha on 01 October 2010, 01:19:07 UTC
intel_idle: Voluntary leave_mm before entering deeper
Tip revision: 6110a1f
File Mode Size
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arch
block
crypto
drivers
firmware
fs
include
init
ipc
kernel
lib
mm
net
samples
scripts
security
sound
tools
usr
virt
.gitignore -rw-r--r-- 936 bytes
.mailmap -rw-r--r-- 3.9 KB
COPYING -rw-r--r-- 18.3 KB
CREDITS -rw-r--r-- 91.8 KB
Kbuild -rw-r--r-- 2.4 KB
MAINTAINERS -rw-r--r-- 173.8 KB
Makefile -rw-r--r-- 50.5 KB
README -rw-r--r-- 17.0 KB
REPORTING-BUGS -rw-r--r-- 3.3 KB

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