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| author | Len Brown <len.brown@intel.com> | 2013-08-30 11:00:07 +0200 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2013-08-30 11:00:07 +0200 |
| commit | 6e287713c94b40bbf21a378eab622108b1186233 (patch) | |
| tree | 051637dce6c517bd7c53190b418aa50b49bbda51 /xen | |
| parent | 91413b51963127d435cfba38e382e81188527ef5 (diff) | |
| download | xen-6e287713c94b40bbf21a378eab622108b1186233.tar.gz xen-6e287713c94b40bbf21a378eab622108b1186233.tar.bz2 xen-6e287713c94b40bbf21a378eab622108b1186233.zip | |
x86/mwait_idle: initial C8, C9, C10 support
Allow mwait_idle to utilize C8, C9, C10 when they are present on...
"Fourth Generation Intel(R) Core(TM) Processors", which are based on
Intel(R) microarchitecture code name Haswell.
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Keir Fraser <keir@xen.org>
Diffstat (limited to 'xen')
| -rw-r--r-- | xen/arch/x86/cpu/mwait-idle.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/xen/arch/x86/cpu/mwait-idle.c b/xen/arch/x86/cpu/mwait-idle.c index 879963215f..85179f2f81 100644 --- a/xen/arch/x86/cpu/mwait-idle.c +++ b/xen/arch/x86/cpu/mwait-idle.c @@ -252,6 +252,24 @@ static const struct cpuidle_state hsw_cstates[] = { .exit_latency = 166, .target_residency = 500, }, + { + .name = "C8-HSW", + .flags = MWAIT2flg(0x40) | CPUIDLE_FLAG_TLB_FLUSHED, + .exit_latency = 300, + .target_residency = 900, + }, + { + .name = "C9-HSW", + .flags = MWAIT2flg(0x50) | CPUIDLE_FLAG_TLB_FLUSHED, + .exit_latency = 600, + .target_residency = 1800, + }, + { + .name = "C10-HSW", + .flags = MWAIT2flg(0x60) | CPUIDLE_FLAG_TLB_FLUSHED, + .exit_latency = 2600, + .target_residency = 7700, + }, {} }; |