x86/sched: Add SD_ASYM_PACKING flags to x86 ITMT CPU
authorTim Chen <tim.c.chen@linux.intel.com>
Tue, 22 Nov 2016 20:23:57 +0000 (12:23 -0800)
committerThomas Gleixner <tglx@linutronix.de>
Thu, 24 Nov 2016 19:44:20 +0000 (20:44 +0100)
commitd3d37d850d1d77bd66bceb8326e6353d3314b270
tree296db59a8a7f9252156cd898ffdf65033fa128a5
parentf9793e34952cda133caaa35738a4b46053331c96
x86/sched: Add SD_ASYM_PACKING flags to x86 ITMT CPU

Some Intel cores in a package can be boosted to a higher turbo frequency
with ITMT 3.0 technology. The scheduler can use the asymmetric packing
feature to move tasks to the more capable cores.

If ITMT is enabled, add SD_ASYM_PACKING flag to the thread and core
sched domains to enable asymmetric packing.

Co-developed-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Cc: linux-pm@vger.kernel.org
Cc: peterz@infradead.org
Cc: jolsa@redhat.com
Cc: rjw@rjwysocki.net
Cc: linux-acpi@vger.kernel.org
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: bp@suse.de
Link: http://lkml.kernel.org/r/9bbb885bedbef4eb50e197305eb16b160cff0831.1479844244.git.tim.c.chen@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
arch/x86/kernel/smpboot.c