From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from imap.sh.mvista.com (unknown [63.81.120.155]) by ozlabs.org (Postfix) with ESMTP id EDBA868065 for ; Wed, 8 Nov 2006 10:21:39 +1100 (EST) Message-ID: <455114F9.2010503@ru.mvista.com> Date: Wed, 08 Nov 2006 02:21:29 +0300 From: Sergei Shtylyov MIME-Version: 1.0 To: Benjamin Herrenschmidt Subject: Re: [PATCH] PowerPC: clockevents and HRT support References: <200611080005.08633.sshtylyov@ru.mvista.com> <1162938997.28571.534.camel@localhost.localdomain> <45510C58.3010707@ru.mvista.com> <1162940684.28571.537.camel@localhost.localdomain> In-Reply-To: <1162940684.28571.537.camel@localhost.localdomain> Content-Type: text/plain; charset=us-ascii; format=flowed Cc: linuxppc-dev@ozlabs.org, tglx@linutronix.de, greg.weeks@timesys.com List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hello. Benjamin Herrenschmidt wrote: >> That's not equivalent. What I wanted to cover with this option was 970 >>weirdness of the decrementer interrupts being level triggered and effectively >>tied to the MSB of the decremeneter register... >> Also, 40x decrementer is not Book E compatible. > Well... Is this specific to the 970 or also happens on all > POWER4..5..6 ? (I don't remember off the top of my head). It should > probably be a runtime check then. I don't have the docs on POWER[456], so can't say anything. >>>Also, what's the problem with ppc64 deterministic accounting that you >>>can't fix it ? >> Arch-specific accounting hooks which this feature makes use of can't be >>called from the generic clockevents code. > Then the generic clockevent code will have to be fixed or powerpc not > ported to it. Whatever. I don't care about that feature. I did my best to solve this gracefully. > Ben. WBR, Sergei