From: Thomas Gleixner <tglx@linutronix.de>
To: David Woodhouse <dwmw2@infradead.org>,
lirongqing@baidu.com, seanjc@google.com, kys@microsoft.com,
haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com,
mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com,
x86@kernel.org, linux-hyperv@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] clockevents/drivers/i8253: Do not zero timer counter in shutdown
Date: Thu, 01 Aug 2024 23:22:56 +0200 [thread overview]
Message-ID: <871q382b0v.ffs@tglx> (raw)
In-Reply-To: <bb8c97ea2b3596f605b9e1b27a221a1c64727e59.camel@infradead.org>
On Thu, Aug 01 2024 at 21:49, David Woodhouse wrote:
> On Thu, 2024-08-01 at 22:00 +0200, Thomas Gleixner wrote:
>> > I justify my cowardice on the basis that it doesn't *matter* if a
>> > hardware implementation is still toggling the IRQ pin; in that case
>> > it's only a few irrelevant transistors which are busy, and it doesn't
>> > translate to steal time.
>>
>> On real hardware it translates to power...
>
> Perhaps, although I'd guess it's a negligible amount. Still, happy to
> be brave and make it unconditional. Want a new version of the patch?
Let'ss fix the shutdown sequence first (See Michaels latest mail) and
then do the clockevents_i8253_init() change on top.
Thanks,
tglx
next prev parent reply other threads:[~2024-08-01 21:22 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-07 1:14 [PATCH] clockevents/drivers/i8253: Do not zero timer counter in shutdown lirongqing
2023-02-08 1:04 ` Michael Kelley (LINUX)
2023-02-08 15:04 ` Sean Christopherson
2023-02-24 9:45 ` Li,Rongqing
[not found] ` <3b8496c071214bda9e5ecfa048f18ab9@baidu.com>
2023-04-13 1:28 ` Wei Liu
[not found] ` <1311175816673.202304.ZDdawTGHoa/UH20U@liuwe-devbox-debian-v2>
2023-04-14 5:17 ` Li,Rongqing
2024-08-01 9:00 ` David Woodhouse
2024-08-01 15:22 ` David Woodhouse
2024-08-01 21:07 ` Thomas Gleixner
2024-08-01 21:10 ` David Woodhouse
2024-08-01 14:21 ` Thomas Gleixner
2024-08-01 16:14 ` Michael Kelley
2024-08-01 18:54 ` Thomas Gleixner
2024-08-02 8:21 ` David Woodhouse
2024-08-02 14:55 ` Sean Christopherson
2024-08-02 15:04 ` David Woodhouse
2024-08-12 23:59 ` Sean Christopherson
2024-08-13 6:39 ` David Woodhouse
2024-08-01 17:49 ` David Woodhouse
2024-08-01 18:25 ` David Woodhouse
2024-08-01 18:57 ` Thomas Gleixner
2024-08-02 8:07 ` David Woodhouse
2024-08-02 10:49 ` Thomas Gleixner
2024-08-02 11:04 ` David Woodhouse
2024-08-02 13:27 ` Thomas Gleixner
2024-08-02 13:46 ` David Woodhouse
2024-08-01 19:06 ` Thomas Gleixner
2024-08-01 19:21 ` David Woodhouse
2024-08-01 20:00 ` Thomas Gleixner
2024-08-01 20:49 ` David Woodhouse
2024-08-01 21:22 ` Thomas Gleixner [this message]
2024-08-01 21:31 ` David Woodhouse
2024-08-02 9:55 ` David Woodhouse
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