From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8D882C433DF for ; Sat, 16 May 2020 11:55:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6C723207E8 for ; Sat, 16 May 2020 11:55:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726242AbgEPLzL (ORCPT ); Sat, 16 May 2020 07:55:11 -0400 Received: from mail.baikalelectronics.com ([87.245.175.226]:39954 "EHLO mail.baikalelectronics.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726197AbgEPLzL (ORCPT ); Sat, 16 May 2020 07:55:11 -0400 Received: from localhost (unknown [127.0.0.1]) by mail.baikalelectronics.ru (Postfix) with ESMTP id E88598030875; Sat, 16 May 2020 11:55:08 +0000 (UTC) X-Virus-Scanned: amavisd-new at baikalelectronics.ru Received: from mail.baikalelectronics.ru ([127.0.0.1]) by localhost (mail.baikalelectronics.ru [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Ih4dynNzh_Sx; Sat, 16 May 2020 14:55:07 +0300 (MSK) Date: Sat, 16 May 2020 14:55:05 +0300 From: Serge Semin To: Thomas Bogendoerfer CC: Serge Semin , Alexey Malahov , Paul Burton , Ralf Baechle , Greg Kroah-Hartman , Arnd Bergmann , Rob Herring , , , Vincenzo Frascino , Thomas Gleixner , , Subject: Re: [PATCH v2 18/20] mips: csrc-r4k: Decrease r4k-clocksource rating if CPU_FREQ enabled Message-ID: <20200516115505.6ybwxuv2bsu2myry@mobilestation> References: <20200306124807.3596F80307C2@mail.baikalelectronics.ru> <20200506174238.15385-1-Sergey.Semin@baikalelectronics.ru> <20200506174238.15385-19-Sergey.Semin@baikalelectronics.ru> <20200508154150.GB22247@alpha.franken.de> <20200511133121.cz5axbwynhmqkx7x@mobilestation> <20200515074827.6p5zx4sb3bmavjih@mobilestation> <20200515210647.GA22922@alpha.franken.de> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20200515210647.GA22922@alpha.franken.de> X-ClientProxiedBy: MAIL.baikal.int (192.168.51.25) To mail (192.168.51.25) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, May 15, 2020 at 11:06:47PM +0200, Thomas Bogendoerfer wrote: > On Fri, May 15, 2020 at 10:48:27AM +0300, Serge Semin wrote: > > Thomas, > > Could you take a look at my comment below so I could proceed with the > > patchset v3 development? > > I can't help, but using r4k clocksource with changing frequency is > probaly only usefull as a random generator. So IMHO the only two > options are disabling it or implement what arch/x86/kernel/tsc.c does. Then it's settled. I'll resend the series with csrc-r4k updated to have the tsc-like design implemented. -Sergey > > Thomas. > > -- > Crap can work. Given enough thrust pigs will fly, but it's not necessarily a > good idea. [ RFC1925, 2.3 ]