linux-kernel - Re: [RFC PATCH 0/5] x86_64: enable clockevents and dynticks

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 02 Apr 2007 09:27:15 +0200
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Andi Kleen <ak@...e.de>
Cc:	Chris Wright <chrisw@...s-sol.org>, Ingo Molnar <mingo@...e.hu>,
	john stultz <johnstul@...ibm.com>, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 0/5] x86_64: enable clockevents and dynticks

On Sun, 2007-04-01 at 22:53 +0200, Andi Kleen wrote:
> > Have you checked, if we could share the code between i386 and x86_64 at
> > least for PIT and HPET. I'm not sure about the local APIC, but I think
> > it might be doable as well.
> 
> Not for PIT. I don't want all the broken ancient hardware workarounds on x86-64.

Err, what are you talking about ?

The clock events code in arch/i386/kernel/i8253.c does not have any
quirks. It's straight forward. The only quirk is in pit_read() and we
can simply make it depend on !64bit.

> HPET might be doable, but would need quite some work.

Right, but this is better spent than having two implementations of the
same thing around.

	tglx



-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/