From: Arnd Bergmann <arnd@arndb•de>
To: linuxppc-dev@ozlabs•org
Cc: kvm-ppc-devel@lists•sourceforge.net
Subject: Re: [PATCH] [v5] Add idle wait support for 44x platforms
Date: Thu, 10 Apr 2008 15:44:43 +0200 [thread overview]
Message-ID: <200804101544.44457.arnd@arndb.de> (raw)
In-Reply-To: <df0f79b7b4ab628887c2.1207673354@thinkpadL>
On Tuesday 08 April 2008, Jerone Young wrote:
> +static struct sleep_mode modes[] =3D {
> +=A0=A0=A0=A0=A0=A0=A0{ .name =3D "wait", .entry =3D &ppc44x_idle },
> +=A0=A0=A0=A0=A0=A0=A0{ .name =3D "spin", .entry =3D NULL },
> +};
> +
> +int __init ppc44x_idle_init(void)
> +{
> +=A0=A0=A0=A0=A0=A0=A0void *func =3D modes[current_mode].entry;
> +=A0=A0=A0=A0=A0=A0=A0ppc_md.power_save =3D func;
> +=A0=A0=A0=A0=A0=A0=A0return 0;
> +}
> +
> +arch_initcall(ppc44x_idle_init);
> +
> +static int __init idle_param(char *p)
> +{=20
> +=A0=A0=A0=A0=A0=A0=A0int i;
> +
> +=A0=A0=A0=A0=A0=A0=A0for (i =3D 0; i < ARRAY_SIZE(modes); i++) {
> +=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0if (!strcmp(modes[i].name, =
p)) {
> +=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0cur=
rent_mode =3D i;
> +=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0bre=
ak;
> +=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0}
> +=A0=A0=A0=A0=A0=A0=A0}
> +
> +=A0=A0=A0=A0=A0=A0=A0return 0;
> +}
> +
> +early_param("idle", idle_param);
ok, sorry to steal the show again, now that everyone seems to be happy
with the current code, but isn't this equivalent to the simpler
static int __init idle_param(char *p)
{
if (!strcmp(modes[i].name, "spin"))
ppc_md.power_save =3D NULL;
}
early_param("idle", idle_param);
if you statically initialize the ppc_md.power_save function to ppc44x_idle
in the platform setup files?
Arnd <><
next prev parent reply other threads:[~2008-04-10 13:50 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-08 16:49 [PATCH] [v5] Add idle wait support for 44x platforms Jerone Young
2008-04-08 19:43 ` [kvm-ppc-devel] " Hollis Blanchard
2008-04-10 11:53 ` Josh Boyer
2008-04-10 13:44 ` Arnd Bergmann [this message]
2008-04-10 20:08 ` Jerone Young
2008-04-11 0:18 ` Arnd Bergmann
2008-04-11 1:02 ` Josh Boyer
2008-04-11 5:31 ` Olof Johansson
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