[PATCH 0/1] [Xenial] Enable Deeper C State for Kabylake

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[PATCH 0/1] [Xenial] Enable Deeper C State for Kabylake

Kai-Heng Feng
BugLink: https://bugs.launchpad.net/bugs/1672439

Impact:
C State > C3 does not support on KBL CPU, so the power consumption is
potentially higher.

Fix:
Add KBL ID to intel_idle's support table.

Test:
The user confirms this patch enables deeper C state on his Precision 5520,
I can also confirm it works on the Precision 5520 at my hand.

Len Brown (1):
  intel_idle: Add KBL support

 drivers/idle/intel_idle.c | 2 ++
 1 file changed, 2 insertions(+)

--
2.12.0


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[PATCH 1/1] intel_idle: Add KBL support

Kai-Heng Feng
From: Len Brown <[hidden email]>

KBL is similar to SKL

Signed-off-by: Len Brown <[hidden email]>
Signed-off-by: Rafael J. Wysocki <[hidden email]>
(cherry picked from commit 3ce093d4de753d6c92cc09366e29d0618a62f542)
Signed-off-by: Kai-Heng Feng <[hidden email]>
---
 drivers/idle/intel_idle.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 012980a8f98c..89fd0071c7fd 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -1011,6 +1011,8 @@ static const struct x86_cpu_id intel_idle_ids[] __initconst = {
  ICPU(0x56, idle_cpu_bdw),
  ICPU(0x4e, idle_cpu_skl),
  ICPU(0x5e, idle_cpu_skl),
+ ICPU(0x8e, idle_cpu_skl),
+ ICPU(0x9e, idle_cpu_skl),
  ICPU(0x57, idle_cpu_knl),
  ICPU(0x5c, idle_cpu_bxt),
  {}
--
2.12.0


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ACK w/cmt: [PATCH 1/1] intel_idle: Add KBL support

Tim Gardner-2
Need to add BugLink to commit when this patch is applied.

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Re: ACK w/cmt: [PATCH 1/1] intel_idle: Add KBL support

Kai-Heng Feng

On Wed, Mar 15, 2017 at 11:49 PM Tim Gardner <[hidden email]> wrote:
Need to add BugLink to commit when this patch is applied.

Do you want me to resend one with BugLink?
 

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Re: ACK w/cmt: [PATCH 1/1] intel_idle: Add KBL support

Tim Gardner-2
On 03/15/2017 10:29 PM, Kai-Heng Feng wrote:
>
> On Wed, Mar 15, 2017 at 11:49 PM Tim Gardner <[hidden email]
> <mailto:[hidden email]>> wrote:
>
>     Need to add BugLink to commit when this patch is applied.
>
>
> Do you want me to resend one with BugLink?
>  

Nah, whomever applied the patch just needs to remember to insert the
Buglink.


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Applied: [PATCH 0/1] [Xenial] Enable Deeper C State for Kabylake

brad.figg
In reply to this post by Kai-Heng Feng
Applied to the master-next branch of the Xenial git repo
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Brad Figg [hidden email] http://www.canonical.com

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