From mboxrd@z Thu Jan 1 00:00:00 1970 From: Leonid Yegoshin Subject: Re: [v3,11/41] mips: reuse asm-generic/barrier.h Date: Wed, 27 Jan 2016 16:58:39 -0800 Message-ID: <56A967BF.70200@imgtec.com> References: <20160113104516.GE25458@arm.com> <5696CF08.8080700@imgtec.com> <20160114121449.GC15828@arm.com> <5697F6D2.60409@imgtec.com> <20160114203430.GC3818@linux.vnet.ibm.com> <56980C91.1010403@imgtec.com> <20160114212913.GF3818@linux.vnet.ibm.com> <569814F2.50801@imgtec.com> <20160114225510.GJ3818@linux.vnet.ibm.com> <56983054.4070807@imgtec.com> <20160115004753.GN3818@linux.vnet.ibm.com> <56984642.3090106@imgtec.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: "Maciej W. Rozycki" Cc: linux-mips@linux-mips.org, linux-ia64@vger.kernel.org, "Michael S. Tsirkin" , Peter Zijlstra , Will Deacon , virtualization@lists.linux-foundation.org, "H. Peter Anvin" , sparclinux@vger.kernel.org, Ingo Molnar , linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, Russell King - ARM Linux , user-mode-linux-devel@lists.sourceforge.net, linux-sh@vger.kernel.org, Michael Ellerman , x86@kernel.org, xen-devel@lists.xenproject.org, Ingo Molnar , paulmck@linux.vnet.ibm.com, linux-xtensa@linux-xtensa.org, james.hogan@imgtec.com, Arnd Bergmann , Stefano Stabellini , adi-buildroot-devel@lists.sourceforge.net, ddaney.cavm@gmail.com, Thomas Gleixner , linux-me List-Id: linux-arch.vger.kernel.org On 01/27/2016 03:26 AM, Maciej W. Rozycki wrote: > On Fri, 15 Jan 2016, Leonid Yegoshin wrote: > >>> So you need to build a different kernel for some types of MIPS systems? >>> Or do you do boot-time rewriting, like a number of other arches do? >> I don't know. I would like to have responses. Ralf asked Maciej about old >> systems and that came nowhere. Even rewrite - don't know what to do with that: >> no lightweight SYNC or no SYNC at all - yes, it is still possible that SYNC on >> some systems can be too heavy or even harmful, nobody tested that. > I don't recall being asked; mind that I might not get to messages I have > not been cc-ed in a timely manner and I may miss some altogether. With > the amount of mailing list traffic that passes by me my scanner may fail > to trigger. Sorry if this causes anybody trouble, but such is life. > > Coincidentally, I have just posted some notes on SYNC in a different > thread, see . > There's a reference to an older message of mine there too. I hope this > answers your questions. > > Maciej In http://patchwork.linux-mips.org/patch/10505/the very last mesg exchange is: Maciej, do you have an R4000 / R4600 / R5000 / R7000 / SiByte system at hand to test this? ... Ralf Maciej W. Rozycki- June 5, 2015, 9:18 p.m. On Fri, 5 Jun 2015, Ralf Baechle wrote: > do you have an R4000 / R4600 / R5000 / R7000 / SiByte system at hand to > test this? I should be able to check R4400 (that is virtually the same as R4000) next week or so. As to SiByte -- not before next month I'm afraid. I don't have access to any of the other processors you named. You may want to find a better person if you want to accept this change soon. Maciej ... and that stops forever... - Leonid. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mailapp01.imgtec.com ([195.59.15.196]:24540 "EHLO mailapp01.imgtec.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966103AbcA1A6r (ORCPT ); Wed, 27 Jan 2016 19:58:47 -0500 Message-ID: <56A967BF.70200@imgtec.com> Date: Wed, 27 Jan 2016 16:58:39 -0800 From: Leonid Yegoshin MIME-Version: 1.0 Subject: Re: [v3,11/41] mips: reuse asm-generic/barrier.h References: <20160113104516.GE25458@arm.com> <5696CF08.8080700@imgtec.com> <20160114121449.GC15828@arm.com> <5697F6D2.60409@imgtec.com> <20160114203430.GC3818@linux.vnet.ibm.com> <56980C91.1010403@imgtec.com> <20160114212913.GF3818@linux.vnet.ibm.com> <569814F2.50801@imgtec.com> <20160114225510.GJ3818@linux.vnet.ibm.com> <56983054.4070807@imgtec.com> <20160115004753.GN3818@linux.vnet.ibm.com> <56984642.3090106@imgtec.com> In-Reply-To: Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-arch-owner@vger.kernel.org List-ID: To: "Maciej W. Rozycki" Cc: paulmck@linux.vnet.ibm.com, Will Deacon , Peter Zijlstra , "Michael S. Tsirkin" , linux-kernel@vger.kernel.org, Arnd Bergmann , linux-arch@vger.kernel.org, Andrew Cooper , Russell King - ARM Linux , virtualization@lists.linux-foundation.org, Stefano Stabellini , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Joe Perches , David Miller , linux-ia64@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-metag@vger.kernel.org, linux-mips@linux-mips.org, x86@kernel.org, user-mode-linux-devel@lists.sourceforge.net, adi-buildroot-devel@lists.sourceforge.net, linux-sh@vger.kernel.org, linux-xtensa@linux-xtensa.org, xen-devel@lists.xenproject.org, Ralf Baechle , Ingo Molnar , ddaney.cavm@gmail.com, james.hogan@imgtec.com, Michael Ellerman Message-ID: <20160128005839.CV6cpkdZdB4bSZnoLoZAgmuY3HcsICErjiDW7IeNuBA@z> On 01/27/2016 03:26 AM, Maciej W. Rozycki wrote: > On Fri, 15 Jan 2016, Leonid Yegoshin wrote: > >>> So you need to build a different kernel for some types of MIPS systems? >>> Or do you do boot-time rewriting, like a number of other arches do? >> I don't know. I would like to have responses. Ralf asked Maciej about old >> systems and that came nowhere. Even rewrite - don't know what to do with that: >> no lightweight SYNC or no SYNC at all - yes, it is still possible that SYNC on >> some systems can be too heavy or even harmful, nobody tested that. > I don't recall being asked; mind that I might not get to messages I have > not been cc-ed in a timely manner and I may miss some altogether. With > the amount of mailing list traffic that passes by me my scanner may fail > to trigger. Sorry if this causes anybody trouble, but such is life. > > Coincidentally, I have just posted some notes on SYNC in a different > thread, see . > There's a reference to an older message of mine there too. I hope this > answers your questions. > > Maciej In http://patchwork.linux-mips.org/patch/10505/the very last mesg exchange is: Maciej, do you have an R4000 / R4600 / R5000 / R7000 / SiByte system at hand to test this? ... Ralf Maciej W. Rozycki- June 5, 2015, 9:18 p.m. On Fri, 5 Jun 2015, Ralf Baechle wrote: > do you have an R4000 / R4600 / R5000 / R7000 / SiByte system at hand to > test this? I should be able to check R4400 (that is virtually the same as R4000) next week or so. As to SiByte -- not before next month I'm afraid. I don't have access to any of the other processors you named. You may want to find a better person if you want to accept this change soon. Maciej ... and that stops forever... - Leonid. From mboxrd@z Thu Jan 1 00:00:00 1970 From: Leonid Yegoshin Date: Thu, 28 Jan 2016 00:58:39 +0000 Subject: Re: [v3,11/41] mips: reuse asm-generic/barrier.h Message-Id: <56A967BF.70200@imgtec.com> List-Id: References: <20160113104516.GE25458@arm.com> <5696CF08.8080700@imgtec.com> <20160114121449.GC15828@arm.com> <5697F6D2.60409@imgtec.com> <20160114203430.GC3818@linux.vnet.ibm.com> <56980C91.1010403@imgtec.com> <20160114212913.GF3818@linux.vnet.ibm.com> <569814F2.50801@imgtec.com> <20160114225510.GJ3818@linux.vnet.ibm.com> <56983054.4070807@imgtec.com> <20160115004753.GN3818@linux.vnet.ibm.com> <56984642.3090106@imgtec.com> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: "Maciej W. Rozycki" Cc: linux-mips@linux-mips.org, linux-ia64@vger.kernel.org, "Michael S. Tsirkin" , Peter Zijlstra , Will Deacon , virtualization@lists.linux-foundation.org, "H. Peter Anvin" , sparclinux@vger.kernel.org, Ingo Molnar , linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, Russell King - ARM Linux , user-mode-linux-devel@lists.sourceforge.net, linux-sh@vger.kernel.org, Michael Ellerman , x86@kernel.org, xen-devel@lists.xenproject.org, Ingo Molnar , paulmck@linux.vnet.ibm.com, linux-xtensa@linux-xtensa.org, james.hogan@imgtec.com, Arnd Bergmann , Stefano Stabellini , adi-buildroot-devel@lists.sourceforge.net, ddaney.cavm@gmail.com, Thomas Gleixner , linux-me On 01/27/2016 03:26 AM, Maciej W. Rozycki wrote: > On Fri, 15 Jan 2016, Leonid Yegoshin wrote: > >>> So you need to build a different kernel for some types of MIPS systems? >>> Or do you do boot-time rewriting, like a number of other arches do? >> I don't know. I would like to have responses. Ralf asked Maciej about old >> systems and that came nowhere. Even rewrite - don't know what to do with that: >> no lightweight SYNC or no SYNC at all - yes, it is still possible that SYNC on >> some systems can be too heavy or even harmful, nobody tested that. > I don't recall being asked; mind that I might not get to messages I have > not been cc-ed in a timely manner and I may miss some altogether. With > the amount of mailing list traffic that passes by me my scanner may fail > to trigger. Sorry if this causes anybody trouble, but such is life. > > Coincidentally, I have just posted some notes on SYNC in a different > thread, see . > There's a reference to an older message of mine there too. I hope this > answers your questions. > > Maciej In http://patchwork.linux-mips.org/patch/10505/the very last mesg exchange is: Maciej, do you have an R4000 / R4600 / R5000 / R7000 / SiByte system at hand to test this? ... Ralf Maciej W. Rozycki- June 5, 2015, 9:18 p.m. On Fri, 5 Jun 2015, Ralf Baechle wrote: > do you have an R4000 / R4600 / R5000 / R7000 / SiByte system at hand to > test this? I should be able to check R4400 (that is virtually the same as R4000) next week or so. As to SiByte -- not before next month I'm afraid. I don't have access to any of the other processors you named. You may want to find a better person if you want to accept this change soon. Maciej ... and that stops forever... - Leonid. From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Thu, 28 Jan 2016 01:58:55 +0100 (CET) Received: from mailapp01.imgtec.com ([195.59.15.196]:3690 "EHLO mailapp01.imgtec.com" rhost-flags-OK-OK-OK-OK) by eddie.linux-mips.org with ESMTP id S27009266AbcA1A6vBAQl9 (ORCPT ); Thu, 28 Jan 2016 01:58:51 +0100 Received: from HHMAIL01.hh.imgtec.org (unknown [10.100.10.19]) by Websense Email Security Gateway with ESMTPS id BBEB3D86D4795; Thu, 28 Jan 2016 00:58:40 +0000 (GMT) Received: from BAMAIL02.ba.imgtec.org (10.20.40.28) by HHMAIL01.hh.imgtec.org (10.100.10.19) with Microsoft SMTP Server (TLS) id 14.3.235.1; Thu, 28 Jan 2016 00:58:44 +0000 Received: from [10.20.3.92] (10.20.3.92) by bamail02.ba.imgtec.org (10.20.40.28) with Microsoft SMTP Server (TLS) id 14.3.174.1; Wed, 27 Jan 2016 16:58:39 -0800 Message-ID: <56A967BF.70200@imgtec.com> Date: Wed, 27 Jan 2016 16:58:39 -0800 From: Leonid Yegoshin User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.2.0 MIME-Version: 1.0 To: "Maciej W. Rozycki" CC: , Will Deacon , "Peter Zijlstra" , "Michael S. Tsirkin" , , Arnd Bergmann , , Andrew Cooper , Russell King - ARM Linux , , Stefano Stabellini , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Joe Perches , David Miller , , , , , , , , , , , , , , "Ralf Baechle" , Ingo Molnar , , , Michael Ellerman Subject: Re: [v3,11/41] mips: reuse asm-generic/barrier.h References: <20160113104516.GE25458@arm.com> <5696CF08.8080700@imgtec.com> <20160114121449.GC15828@arm.com> <5697F6D2.60409@imgtec.com> <20160114203430.GC3818@linux.vnet.ibm.com> <56980C91.1010403@imgtec.com> <20160114212913.GF3818@linux.vnet.ibm.com> <569814F2.50801@imgtec.com> <20160114225510.GJ3818@linux.vnet.ibm.com> <56983054.4070807@imgtec.com> <20160115004753.GN3818@linux.vnet.ibm.com> <56984642.3090106@imgtec.com> In-Reply-To: Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.20.3.92] Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 51503 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: Leonid.Yegoshin@imgtec.com Precedence: bulk List-help: List-unsubscribe: List-software: Ecartis version 1.0.0 List-Id: linux-mips X-List-ID: linux-mips List-subscribe: List-owner: List-post: List-archive: X-list: linux-mips On 01/27/2016 03:26 AM, Maciej W. Rozycki wrote: > On Fri, 15 Jan 2016, Leonid Yegoshin wrote: > >>> So you need to build a different kernel for some types of MIPS systems? >>> Or do you do boot-time rewriting, like a number of other arches do? >> I don't know. I would like to have responses. Ralf asked Maciej about old >> systems and that came nowhere. Even rewrite - don't know what to do with that: >> no lightweight SYNC or no SYNC at all - yes, it is still possible that SYNC on >> some systems can be too heavy or even harmful, nobody tested that. > I don't recall being asked; mind that I might not get to messages I have > not been cc-ed in a timely manner and I may miss some altogether. With > the amount of mailing list traffic that passes by me my scanner may fail > to trigger. Sorry if this causes anybody trouble, but such is life. > > Coincidentally, I have just posted some notes on SYNC in a different > thread, see . > There's a reference to an older message of mine there too. I hope this > answers your questions. > > Maciej In http://patchwork.linux-mips.org/patch/10505/the very last mesg exchange is: Maciej, do you have an R4000 / R4600 / R5000 / R7000 / SiByte system at hand to test this? ... Ralf Maciej W. Rozycki- June 5, 2015, 9:18 p.m. On Fri, 5 Jun 2015, Ralf Baechle wrote: > do you have an R4000 / R4600 / R5000 / R7000 / SiByte system at hand to > test this? I should be able to check R4400 (that is virtually the same as R4000) next week or so. As to SiByte -- not before next month I'm afraid. I don't have access to any of the other processors you named. You may want to find a better person if you want to accept this change soon. Maciej ... and that stops forever... - Leonid. From mboxrd@z Thu Jan 1 00:00:00 1970 From: Leonid.Yegoshin@imgtec.com (Leonid Yegoshin) Date: Wed, 27 Jan 2016 16:58:39 -0800 Subject: [v3,11/41] mips: reuse asm-generic/barrier.h In-Reply-To: References: <20160113104516.GE25458@arm.com> <5696CF08.8080700@imgtec.com> <20160114121449.GC15828@arm.com> <5697F6D2.60409@imgtec.com> <20160114203430.GC3818@linux.vnet.ibm.com> <56980C91.1010403@imgtec.com> <20160114212913.GF3818@linux.vnet.ibm.com> <569814F2.50801@imgtec.com> <20160114225510.GJ3818@linux.vnet.ibm.com> <56983054.4070807@imgtec.com> <20160115004753.GN3818@linux.vnet.ibm.com> <56984642.3090106@imgtec.com> Message-ID: <56A967BF.70200@imgtec.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 01/27/2016 03:26 AM, Maciej W. Rozycki wrote: > On Fri, 15 Jan 2016, Leonid Yegoshin wrote: > >>> So you need to build a different kernel for some types of MIPS systems? >>> Or do you do boot-time rewriting, like a number of other arches do? >> I don't know. I would like to have responses. Ralf asked Maciej about old >> systems and that came nowhere. Even rewrite - don't know what to do with that: >> no lightweight SYNC or no SYNC at all - yes, it is still possible that SYNC on >> some systems can be too heavy or even harmful, nobody tested that. > I don't recall being asked; mind that I might not get to messages I have > not been cc-ed in a timely manner and I may miss some altogether. With > the amount of mailing list traffic that passes by me my scanner may fail > to trigger. Sorry if this causes anybody trouble, but such is life. > > Coincidentally, I have just posted some notes on SYNC in a different > thread, see . > There's a reference to an older message of mine there too. I hope this > answers your questions. > > Maciej In http://patchwork.linux-mips.org/patch/10505/the very last mesg exchange is: Maciej, do you have an R4000 / R4600 / R5000 / R7000 / SiByte system at hand to test this? ... Ralf Maciej W. Rozycki- June 5, 2015, 9:18 p.m. On Fri, 5 Jun 2015, Ralf Baechle wrote: > do you have an R4000 / R4600 / R5000 / R7000 / SiByte system at hand to > test this? I should be able to check R4400 (that is virtually the same as R4000) next week or so. As to SiByte -- not before next month I'm afraid. I don't have access to any of the other processors you named. You may want to find a better person if you want to accept this change soon. Maciej ... and that stops forever... - Leonid.