linux-kernel - Re: [patch 08/34] arm: Use generic idle loop

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Date:	Fri, 22 Mar 2013 14:24:53 -0700
From:	Kevin Hilman <khilman@...aro.org>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	LKML <linux-kernel@...r.kernel.org>, linux-arch@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Paul McKenney <paulmck@...ux.vnet.ibm.com>,
	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <peterz@...radead.org>,
	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>,
	Magnus Damm <magnus.damm@...il.com>,
	Russell King <linux@....linux.org.uk>
Subject: Re: [patch 08/34] arm: Use generic idle loop

Hi Thomas,

Thomas Gleixner <tglx@...utronix.de> writes:

> Use the generic idle loop and replace enable/disable_hlt with the
> respective core functions.
>
> Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
> Cc: Russell King <linux@....linux.org.uk>

I gave patches 1-5 + this a quick spin on ARM (specifially some OMAP3 and
OMAP4 platforms, with and without CPUidle enabled.)

The OMAP stuff needed a couple minor compile fixes (below), but
otherwise it passes the quick "seems to work" test.

So at least for ARM/OMAP:

Tested-by: Kevin Hilman <khilman@...aro.org>

Kevin


diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c
index 23c653a..db37f49 100644
--- a/arch/arm/mach-omap1/pm.c
+++ b/arch/arm/mach-omap1/pm.c
@@ -43,6 +43,7 @@
 #include <linux/module.h>
 #include <linux/io.h>
 #include <linux/atomic.h>
+#include <linux/cpu.h>
 
 #include <asm/fncpy.h>
 #include <asm/system_misc.h>
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 3a6c6b8..2f17f95 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -138,6 +138,7 @@
 #include <linux/spinlock.h>
 #include <linux/slab.h>
 #include <linux/bootmem.h>
+#include <linux/cpu.h>
 
 #include <asm/system_misc.h>
--
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