From: Len Brown <lenb@kernel.org>
To: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
Len Brown <len.brown@intel.com>, Jiri Kosina <jkosina@suse.cz>
Subject: Re: [PATCH 01/16] APM idle: register apm_cpu_idle via cpuidle
Date: Mon, 11 Feb 2013 17:50:37 -0500 [thread overview]
Message-ID: <511975BD.60103@kernel.org> (raw)
In-Reply-To: <5118B776.6090604@linaro.org>
On 02/11/2013 04:18 AM, Daniel Lezcano wrote:
> On 02/10/2013 06:58 AM, Len Brown wrote:
>> From: Len Brown <len.brown@intel.com>
>>
>> Update APM to register its local idle routine with cpuidle.
>>
>> This allows us to stop exporting pm_idle to modules on x86.
>>
>> The Kconfig sub-option, APM_CPU_IDLE, now depends on on CPU_IDLE.
>>
>> Compile-tested only.
>>
>> Signed-off-by: Len Brown <len.brown@intel.com>
>> Cc: Jiri Kosina <jkosina@suse.cz>
>> ---
>
>> +static struct cpuidle_device apm_cpuidle_device = {
>> + .state_count = 2,
>> +};
>
> This will make the cpuidle_register_driver to fail because the
> state_count field of the cpuidle_driver is zero, no ?
>
> static struct cpuidle_driver apm_idle_driver = {
> .name = "apm_idle",
> ...
> .states = {
> ...
> },
> .state_count = 2,
> }
yup, good catch.
>> -static void apm_cpu_idle(void)
>> +static int apm_cpu_idle(struct cpuidle_device *dev,
>> + struct cpuidle_driver *drv, int index)
>> {
>> static int use_apm_idle; /* = 0 */
>> static unsigned int last_jiffies; /* = 0 */
...
>> @@ -964,6 +983,7 @@ recalc:
>> apm_do_busy();
>>
>> local_irq_enable();
>
> ^^^^^^^^
>
> As the 'en_core_tk_irqen' flag has been enabled in the driver, the
> caller of this function will call 'local_irq_enable'. We can remove the
> this line no ?
yup, this line is no longer necessary.
v2 on the way -- hoping somebody with an APM box can test it.
thanks,
-Len Brown, Intel Open Source Technology Center
next prev parent reply other threads:[~2013-02-11 22:50 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-10 5:58 pm_idle cleanup patch series Len Brown
2013-02-10 5:58 ` [PATCH 01/16] APM idle: register apm_cpu_idle via cpuidle Len Brown
2013-02-10 5:58 ` [PATCH 02/16] x86 idle: rename global pm_idle to static x86_idle Len Brown
2013-02-10 5:58 ` [PATCH 03/16] sh idle: rename global pm_idle to static sh_idle Len Brown
2013-02-10 5:58 ` [PATCH 04/16] sparc idle: rename pm_idle to sparc_idle Len Brown
2013-02-10 23:08 ` David Miller
2013-02-10 5:58 ` [PATCH 05/16] blackfin idle: delete pm_idle Len Brown
2013-02-18 16:28 ` Lars-Peter Clausen
2013-02-20 17:53 ` Len Brown
2013-02-20 19:52 ` Rafael J. Wysocki
2013-02-20 19:53 ` Lars-Peter Clausen
2013-02-20 19:59 ` Rafael J. Wysocki
2013-02-20 20:21 ` Lars-Peter Clausen
2013-02-20 21:18 ` Rafael J. Wysocki
2013-02-21 9:56 ` [PATCH] blackfin idle: Fix compile error Lars-Peter Clausen
2013-02-21 16:24 ` Rafael J. Wysocki
2013-02-10 5:58 ` [PATCH 06/16] ARM idle: delete pm_idle Len Brown
2013-02-11 16:02 ` Catalin Marinas
2013-02-11 16:11 ` Russell King - ARM Linux
2013-02-11 22:42 ` Len Brown
2013-02-12 22:04 ` Kevin Hilman
2013-02-10 5:58 ` [PATCH 07/16] ARM64 " Len Brown
2013-02-12 11:03 ` Catalin Marinas
2013-02-10 5:58 ` [PATCH 08/16] cris idle: delete idle and pm_idle Len Brown
2013-02-11 8:42 ` Jesper Nilsson
2013-02-10 5:58 ` [PATCH 09/16] ia64 idle: delete pm_idle Len Brown
2013-02-21 10:15 ` Lars-Peter Clausen
2013-03-26 3:12 ` Brown, Len
2013-03-26 4:29 ` [PATCH] ia64 idle: delete (*idle)() Len Brown
2013-02-10 5:58 ` [PATCH 10/16] m32r idle: delete pm_idle, and other dead idle code Len Brown
2013-02-10 5:58 ` [PATCH 11/16] microblaze idle: delete pm_idle Len Brown
2013-02-21 10:15 ` [PATCH] microblaze idle: Fix compile error Lars-Peter Clausen
2013-02-21 16:25 ` Rafael J. Wysocki
2013-02-10 5:58 ` [PATCH 12/16] mn10300 idle: delete pm_idle Len Brown
2013-02-10 5:58 ` [PATCH 13/16] openrisc " Len Brown
2013-02-10 17:31 ` [ORLinux] " Jonas Bonn
2013-02-10 5:58 ` [PATCH 14/16] unicore32 idle: delete stray pm_idle comment Len Brown
2013-02-10 5:58 ` [PATCH 15/16] PM idle: remove global declaration of pm_idle Len Brown
2013-02-10 5:58 ` [PATCH 16/16] xen idle: make xen-specific macro xen-specific Len Brown
2013-02-11 9:18 ` [PATCH 01/16] APM idle: register apm_cpu_idle via cpuidle Daniel Lezcano
2013-02-11 22:50 ` Len Brown [this message]
2013-02-11 23:03 ` APM: Request to Test Len Brown
2013-02-11 23:03 ` [PATCH v2] APM idle: register apm_cpu_idle via cpuidle Len Brown
2013-02-12 15:00 ` Daniel Lezcano
2013-02-18 13:30 ` Jiri Kosina
2013-02-20 17:48 ` Len Brown
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