From mboxrd@z Thu Jan 1 00:00:00 1970 From: Frederic Weisbecker Subject: Re: [PATCH v2 07/44] cpuidle,psci: Push RCU-idle into driver Date: Mon, 19 Sep 2022 16:11:51 +0200 Message-ID: <20220919141151.GD58444@lothringen> References: <20220919095939.761690562@infradead.org> <20220919101520.802976773@infradead.org> Mime-Version: 1.0 Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1663596714; bh=jFC8Ee/B68Lt0N7gS8RRayFaddE97lbLbiTesOHxN7A=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=IzEUztO2cOw2WGBqf2psEpxOvRZWujFXNz5ZdjgSX/J4eeWt8peadleymWnVJq9yH miv2FuTQ3EjwDSKX3MkzxozzcAWGP1+Tn47GbA/6EOK95uuXO7VoAg5QvEO/dNmdNm uM6gyiWTngHj5i/4Z4zRvF+6+ClWxzmiN+yu6JnsWI4IJqhvqrR2iIxxSEoq1plzY2 L9vaQjVUCB9xGl9OxM10M1znA53Mq55FwVxosD+eK8A/NXKEsCWXssqcS46ftjtLuN 3597C4YqcCzPUlYbazDmbh0TuPASDcDk4+kR+qL/xPPX4Pfu/x9UK+QueTPRhI9KKc hgtQWNHwmsxxg== Content-Disposition: inline In-Reply-To: <20220919101520.802976773-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org> List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Peter Zijlstra Cc: richard.henderson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, ink-biIs/Y0ymYJMZLIVYojuPNP0rXTJTi09@public.gmane.org, mattst88-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, vgupta-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, linux-I+IVW8TIWO2tmTQ+vhA3Yw@public.gmane.org, ulli.kroll-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org, linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, shawnguo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, Sascha Hauer , kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org, festevam-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, linux-imx-3arQi8VN3Tc@public.gmane.org, tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org, khilman-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, catalin.marinas-5wv7dgnIgG8@public.gmane.org, will-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, guoren-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, bcain-jfJNa2p1gH1BDgjK7y7TUQ@public.gmane.org, chenhuacai-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, kernel-f95k8chpbVdBDLzU/O5InQ@public.gmane.org, geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org, sammy-4OGMY2YDKIVeoWH0uzbU5w@public.gmane.org, monstr-pSz03upnqPeHXe+LvDLADg@public.gmane.org, tsbogend-I1c7kopa9pxLokYuJOExCg@public.gmane.org, dinguyen-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, jonas-A9uVI2HLR7kOP4wsBPIw7w@public.gmane.org, stefan.kristiansson-MbMCFXIvDHJFcC0YU169RA@public.gmane.org, shorne-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, James.Bottomley-d9PhHud1JfjCXq6kfMZ53/egYHeGw8Jk@public.gmane.org, deller-Mmb7MZpHnFY@public.gmane.org, mpe-Gsx/Oe8HsFggBc27wqDAHg@public.gmane.org, npiggin-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, christophe.leroy-2tlSp11Fh4xulxpn9UvDqw@public.gmane.org, paul.walmsley-SpMDHPYPyPbQT0dZR+AlfA@public.gmane.org, palmer@dabbel On Mon, Sep 19, 2022 at 11:59:46AM +0200, Peter Zijlstra wrote: > Doing RCU-idle outside the driver, only to then temporarily enable it > again, at least twice, before going idle is daft. > > Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Frederic Weisbecker 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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id F22EBC6FA8B for ; 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s=k20201202; t=1663596714; bh=jFC8Ee/B68Lt0N7gS8RRayFaddE97lbLbiTesOHxN7A=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=IzEUztO2cOw2WGBqf2psEpxOvRZWujFXNz5ZdjgSX/J4eeWt8peadleymWnVJq9yH miv2FuTQ3EjwDSKX3MkzxozzcAWGP1+Tn47GbA/6EOK95uuXO7VoAg5QvEO/dNmdNm uM6gyiWTngHj5i/4Z4zRvF+6+ClWxzmiN+yu6JnsWI4IJqhvqrR2iIxxSEoq1plzY2 L9vaQjVUCB9xGl9OxM10M1znA53Mq55FwVxosD+eK8A/NXKEsCWXssqcS46ftjtLuN 3597C4YqcCzPUlYbazDmbh0TuPASDcDk4+kR+qL/xPPX4Pfu/x9UK+QueTPRhI9KKc hgtQWNHwmsxxg== Date: Mon, 19 Sep 2022 16:11:51 +0200 From: Frederic Weisbecker To: Peter Zijlstra Cc: richard.henderson@linaro.org, ink@jurassic.park.msu.ru, mattst88@gmail.com, vgupta@kernel.org, linux@armlinux.org.uk, ulli.kroll@googlemail.com, linus.walleij@linaro.org, shawnguo@kernel.org, Sascha Hauer , kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, tony@atomide.com, khilman@kernel.org, catalin.marinas@arm.com, will@kernel.org, guoren@kernel.org, bcain@quicinc.com, chenhuacai@kernel.org, kernel@xen0n.name, geert@linux-m68k.org, sammy@sammy.net, monstr@monstr.eu, tsbogend@alpha.franken.de, dinguyen@kernel.org, jonas@southpole.se, stefan.kristiansson@saunalahti.fi, shorne@gmail.com, James.Bottomley@HansenPartnership.com, deller@gmx.de, mpe@ellerman.id.au, npiggin@gmail.com, christophe.leroy@csgroup.eu, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, hca@linux.ibm.com, gor@linux.ibm.com, agordeev@linux.ibm.com, borntraeger@linux.ibm.com, svens@linux.ibm.com, ysato@users.sourceforge.jp, dalias@libc.org, davem@davemloft.net, richard@nod.at, anton.ivanov@cambridgegreys.com, johannes@sipsolutions.net, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, acme@kernel.org, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@kernel.org, namhyung@kernel.org, jgross@suse.com, srivatsa@csail.mit.edu, amakhalov@vmware.com, pv-drivers@vmware.com, boris.ostrovsky@oracle.com, chris@zankel.net, jcmvbkbc@gmail.com, rafael@kernel.org, lenb@kernel.org, pavel@ucw.cz, gregkh@linuxfoundation.org, mturquette@baylibre.com, sboyd@kernel.org, daniel.lezcano@linaro.org, lpieralisi@kernel.org, sudeep.holla@arm.com, agross@kernel.org, bjorn.andersson@linaro.org, konrad.dybcio@somainline.org, anup@brainfault.org, thierry.reding@gmail.com, jonathanh@nvidia.com, jacob.jun.pan@linux.intel.com, atishp@atishpatra.org, Arnd Bergmann , yury.norov@gmail.com, andriy.shevchenko@linux.intel.com, linux@rasmusvillemoes.dk, dennis@kernel.org, tj@kernel.org, cl@linux.com, rostedt@goodmis.org, pmladek@suse.com, senozhatsky@chromium.org, john.ogness@linutronix.de, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, bsegall@google.com, mgorman@suse.de, bristot@redhat.com, vschneid@redhat.com, fweisbec@gmail.com, ryabinin.a.a@gmail.com, glider@google.com, andreyknvl@gmail.com, dvyukov@google.com, vincenzo.frascino@arm.com, Andrew Morton , jpoimboe@kernel.org, linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-omap@vger.kernel.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, openrisc@lists.librecores.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-perf-users@vger.kernel.org, virtualization@lists.linux-foundation.org, linux-xtensa@linux-xtensa.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-clk@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-tegra@vger.kernel.org, linux-arch@vger.kernel.org, kasan-dev@googlegroups.com Subject: Re: [PATCH v2 07/44] cpuidle,psci: Push RCU-idle into driver Message-ID: <20220919141151.GD58444@lothringen> References: <20220919095939.761690562@infradead.org> <20220919101520.802976773@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220919101520.802976773@infradead.org> Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org On Mon, Sep 19, 2022 at 11:59:46AM +0200, Peter Zijlstra wrote: > Doing RCU-idle outside the driver, only to then temporarily enable it > again, at least twice, before going idle is daft. > > Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Frederic Weisbecker From mboxrd@z Thu Jan 1 00:00:00 1970 From: Frederic Weisbecker Date: Mon, 19 Sep 2022 14:11:51 +0000 Subject: Re: [PATCH v2 07/44] cpuidle,psci: Push RCU-idle into driver Message-Id: <20220919141151.GD58444@lothringen> List-Id: References: <20220919095939.761690562@infradead.org> <20220919101520.802976773@infradead.org> In-Reply-To: <20220919101520.802976773@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Peter Zijlstra Cc: richard.henderson@linaro.org, ink@jurassic.park.msu.ru, mattst88@gmail.com, vgupta@kernel.org, linux@armlinux.org.uk, ulli.kroll@googlemail.com, linus.walleij@linaro.org, shawnguo@kernel.org, Sascha Hauer , kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, tony@atomide.com, khilman@kernel.org, catalin.marinas@arm.com, will@kernel.org, guoren@kernel.org, bcain@quicinc.com, chenhuacai@kernel.org, kernel@xen0n.name, geert@linux-m68k.org, sammy@sammy.net, monstr@monstr.eu, tsbogend@alpha.franken.de, dinguyen@kernel.org, jonas@southpole.se, stefan.kristiansson@saunalahti.fi, shorne@gmail.com, James.Bottomley@HansenPartnership.com, deller@gmx.de, mpe@ellerman.id.au, npiggin@gmail.com, christophe.leroy@csgroup.eu, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, hca@linux.ibm.com, gor@linux.ibm.com, agordeev@linux.ibm.com, borntraeger@linux.ibm.com, svens@linux.ibm.com, ysato@users.sourceforge.jp, dalias@libc.org, davem@davemloft.net, richard@nod.at, anton.ivanov@cambridgegreys.com, johannes@sipsolutions.net, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, acme@kernel.org, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@kernel.org, namhyung@kernel.org, jgross@suse.com, srivatsa@csail.mit.edu, amakhalov@vmware.com, pv-drivers@vmware.com, boris.ostrovsky@oracle.com, chris@zankel.net, jcmvbkbc@gmail.com, rafael@kernel.org, lenb@kernel.org, pavel@ucw.cz, gregkh@linuxfoundation.org, mturquette@baylibre.com, sboyd@kernel.org, daniel.lezcano@linaro.org, lpieralisi@kernel.org, sudeep.holla@arm.com, agross@kernel.org, bjorn.andersson@linaro.org, konrad.dybcio@somainline.org, anup@brainfault.org, thierry.reding@gmail.com, jonathanh@nvidia.com, jacob.jun.pan@linux.intel.com, atishp@atishpatra.org, Arnd Bergmann , yury.norov@gmail.com, andriy.shevchenko@linux.intel.com, linux@rasmusvillemoes.dk, dennis@kernel.org, tj@kernel.org, cl@linux.com, rostedt@goodmis.org, pmladek@suse.com, senozhatsky@chromium.org, john.ogness@linutronix.de, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, bsegall@google.com, mgorman@suse.de, bristot@redhat.com, vschneid@redhat.com, fweisbec@gmail.com, ryabinin.a.a@gmail.com, glider@google.com, andreyknvl@gmail.com, dvyukov@google.com, vincenzo.frascino@arm.com, Andrew Morton , jpoimboe@kernel.org, linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-omap@vger.kernel.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, openrisc@lists.librecores.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-perf-users@vger.kernel.org, virtualization@lists.linux-foundation.org, linux-xtensa@linux-xtensa.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-clk@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-tegra@vger.kernel.org, linux-arch@vger.kernel.org, kasan-dev@googlegroups.com On Mon, Sep 19, 2022 at 11:59:46AM +0200, Peter Zijlstra wrote: > Doing RCU-idle outside the driver, only to then temporarily enable it > again, at least twice, before going idle is daft. > > Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Frederic Weisbecker 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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 06CA6C54EE9 for ; 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Mon, 19 Sep 2022 15:16:19 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oaHV5-00C1x9-HC; Mon, 19 Sep 2022 14:11:58 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id D9C176170E; Mon, 19 Sep 2022 14:11:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9D756C43470; Mon, 19 Sep 2022 14:11:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1663596714; bh=jFC8Ee/B68Lt0N7gS8RRayFaddE97lbLbiTesOHxN7A=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=IzEUztO2cOw2WGBqf2psEpxOvRZWujFXNz5ZdjgSX/J4eeWt8peadleymWnVJq9yH miv2FuTQ3EjwDSKX3MkzxozzcAWGP1+Tn47GbA/6EOK95uuXO7VoAg5QvEO/dNmdNm uM6gyiWTngHj5i/4Z4zRvF+6+ClWxzmiN+yu6JnsWI4IJqhvqrR2iIxxSEoq1plzY2 L9vaQjVUCB9xGl9OxM10M1znA53Mq55FwVxosD+eK8A/NXKEsCWXssqcS46ftjtLuN 3597C4YqcCzPUlYbazDmbh0TuPASDcDk4+kR+qL/xPPX4Pfu/x9UK+QueTPRhI9KKc hgtQWNHwmsxxg== Date: Mon, 19 Sep 2022 16:11:51 +0200 From: Frederic Weisbecker To: Peter Zijlstra Cc: richard.henderson@linaro.org, ink@jurassic.park.msu.ru, mattst88@gmail.com, vgupta@kernel.org, linux@armlinux.org.uk, ulli.kroll@googlemail.com, linus.walleij@linaro.org, shawnguo@kernel.org, Sascha Hauer , kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, tony@atomide.com, khilman@kernel.org, catalin.marinas@arm.com, will@kernel.org, guoren@kernel.org, bcain@quicinc.com, chenhuacai@kernel.org, kernel@xen0n.name, geert@linux-m68k.org, sammy@sammy.net, monstr@monstr.eu, tsbogend@alpha.franken.de, dinguyen@kernel.org, jonas@southpole.se, stefan.kristiansson@saunalahti.fi, shorne@gmail.com, James.Bottomley@HansenPartnership.com, deller@gmx.de, mpe@ellerman.id.au, npiggin@gmail.com, christophe.leroy@csgroup.eu, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, hca@linux.ibm.com, gor@linux.ibm.com, agordeev@linux.ibm.com, borntraeger@linux.ibm.com, svens@linux.ibm.com, ysato@users.sourceforge.jp, dalias@libc.org, davem@davemloft.net, richard@nod.at, anton.ivanov@cambridgegreys.com, johannes@sipsolutions.net, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, acme@kernel.org, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@kernel.org, namhyung@kernel.org, jgross@suse.com, srivatsa@csail.mit.edu, amakhalov@vmware.com, pv-drivers@vmware.com, boris.ostrovsky@oracle.com, chris@zankel.net, jcmvbkbc@gmail.com, rafael@kernel.org, lenb@kernel.org, pavel@ucw.cz, gregkh@linuxfoundation.org, mturquette@baylibre.com, sboyd@kernel.org, daniel.lezcano@linaro.org, lpieralisi@kernel.org, sudeep.holla@arm.com, agross@kernel.org, bjorn.andersson@linaro.org, konrad.dybcio@somainline.org, anup@brainfault.org, thierry.reding@gmail.com, jonathanh@nvidia.com, jacob.jun.pan@linux.intel.com, atishp@atishpatra.org, Arnd Bergmann , yury.norov@gmail.com, andriy.shevchenko@linux.intel.com, linux@rasmusvillemoes.dk, dennis@kernel.org, tj@kernel.org, cl@linux.com, rostedt@goodmis.org, pmladek@suse.com, senozhatsky@chromium.org, john.ogness@linutronix.de, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, bsegall@google.com, mgorman@suse.de, bristot@redhat.com, vschneid@redhat.com, fweisbec@gmail.com, ryabinin.a.a@gmail.com, glider@google.com, andreyknvl@gmail.com, dvyukov@google.com, vincenzo.frascino@arm.com, Andrew Morton , jpoimboe@kernel.org, linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-omap@vger.kernel.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, openrisc@lists.librecores.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-perf-users@vger.kernel.org, virtualization@lists.linux-foundation.org, linux-xtensa@linux-xtensa.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-clk@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-tegra@vger.kernel.org, linux-arch@vger.kernel.org, kasan-dev@googlegroups.com Subject: Re: [PATCH v2 07/44] cpuidle,psci: Push RCU-idle into driver Message-ID: <20220919141151.GD58444@lothringen> References: <20220919095939.761690562@infradead.org> <20220919101520.802976773@infradead.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220919101520.802976773@infradead.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220919_071155_682529_E819A464 X-CRM114-Status: UNSURE ( 9.61 ) X-CRM114-Notice: Please train this message. X-Mailman-Approved-At: Mon, 19 Sep 2022 08:09:28 -0700 X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Mon, Sep 19, 2022 at 11:59:46AM +0200, Peter Zijlstra wrote: > Doing RCU-idle outside the driver, only to then temporarily enable it > again, at least twice, before going idle is daft. > > Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Frederic Weisbecker _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv 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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5C3B1C54EE9 for ; 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Mon, 19 Sep 2022 14:12:00 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oaHV5-00C1x9-HC; Mon, 19 Sep 2022 14:11:58 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id D9C176170E; Mon, 19 Sep 2022 14:11:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9D756C43470; Mon, 19 Sep 2022 14:11:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1663596714; bh=jFC8Ee/B68Lt0N7gS8RRayFaddE97lbLbiTesOHxN7A=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=IzEUztO2cOw2WGBqf2psEpxOvRZWujFXNz5ZdjgSX/J4eeWt8peadleymWnVJq9yH miv2FuTQ3EjwDSKX3MkzxozzcAWGP1+Tn47GbA/6EOK95uuXO7VoAg5QvEO/dNmdNm uM6gyiWTngHj5i/4Z4zRvF+6+ClWxzmiN+yu6JnsWI4IJqhvqrR2iIxxSEoq1plzY2 L9vaQjVUCB9xGl9OxM10M1znA53Mq55FwVxosD+eK8A/NXKEsCWXssqcS46ftjtLuN 3597C4YqcCzPUlYbazDmbh0TuPASDcDk4+kR+qL/xPPX4Pfu/x9UK+QueTPRhI9KKc hgtQWNHwmsxxg== Date: Mon, 19 Sep 2022 16:11:51 +0200 From: Frederic Weisbecker To: Peter Zijlstra Cc: richard.henderson@linaro.org, ink@jurassic.park.msu.ru, mattst88@gmail.com, vgupta@kernel.org, linux@armlinux.org.uk, ulli.kroll@googlemail.com, linus.walleij@linaro.org, shawnguo@kernel.org, Sascha Hauer , kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, tony@atomide.com, khilman@kernel.org, catalin.marinas@arm.com, will@kernel.org, guoren@kernel.org, bcain@quicinc.com, chenhuacai@kernel.org, kernel@xen0n.name, geert@linux-m68k.org, sammy@sammy.net, monstr@monstr.eu, tsbogend@alpha.franken.de, dinguyen@kernel.org, jonas@southpole.se, stefan.kristiansson@saunalahti.fi, shorne@gmail.com, James.Bottomley@HansenPartnership.com, deller@gmx.de, mpe@ellerman.id.au, npiggin@gmail.com, christophe.leroy@csgroup.eu, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, hca@linux.ibm.com, gor@linux.ibm.com, agordeev@linux.ibm.com, borntraeger@linux.ibm.com, svens@linux.ibm.com, ysato@users.sourceforge.jp, dalias@libc.org, davem@davemloft.net, richard@nod.at, anton.ivanov@cambridgegreys.com, johannes@sipsolutions.net, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, acme@kernel.org, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@kernel.org, namhyung@kernel.org, jgross@suse.com, srivatsa@csail.mit.edu, amakhalov@vmware.com, pv-drivers@vmware.com, boris.ostrovsky@oracle.com, chris@zankel.net, jcmvbkbc@gmail.com, rafael@kernel.org, lenb@kernel.org, pavel@ucw.cz, gregkh@linuxfoundation.org, mturquette@baylibre.com, sboyd@kernel.org, daniel.lezcano@linaro.org, lpieralisi@kernel.org, sudeep.holla@arm.com, agross@kernel.org, bjorn.andersson@linaro.org, konrad.dybcio@somainline.org, anup@brainfault.org, thierry.reding@gmail.com, jonathanh@nvidia.com, jacob.jun.pan@linux.intel.com, atishp@atishpatra.org, Arnd Bergmann , yury.norov@gmail.com, andriy.shevchenko@linux.intel.com, linux@rasmusvillemoes.dk, dennis@kernel.org, tj@kernel.org, cl@linux.com, rostedt@goodmis.org, pmladek@suse.com, senozhatsky@chromium.org, john.ogness@linutronix.de, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, bsegall@google.com, mgorman@suse.de, bristot@redhat.com, vschneid@redhat.com, fweisbec@gmail.com, ryabinin.a.a@gmail.com, glider@google.com, andreyknvl@gmail.com, dvyukov@google.com, vincenzo.frascino@arm.com, Andrew Morton , jpoimboe@kernel.org, linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-omap@vger.kernel.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, openrisc@lists.librecores.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-perf-users@vger.kernel.org, virtualization@lists.linux-foundation.org, linux-xtensa@linux-xtensa.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, linux-clk@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-tegra@vger.kernel.org, linux-arch@vger.kernel.org, kasan-dev@googlegroups.com Subject: Re: [PATCH v2 07/44] cpuidle,psci: Push RCU-idle into driver Message-ID: <20220919141151.GD58444@lothringen> References: <20220919095939.761690562@infradead.org> <20220919101520.802976773@infradead.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220919101520.802976773@infradead.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220919_071155_682529_E819A464 X-CRM114-Status: UNSURE ( 9.61 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-snps-arc@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux on Synopsys ARC Processors List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-snps-arc" Errors-To: linux-snps-arc-bounces+linux-snps-arc=archiver.kernel.org@lists.infradead.org On Mon, Sep 19, 2022 at 11:59:46AM +0200, Peter Zijlstra wrote: > Doing RCU-idle outside the driver, only to then temporarily enable it > again, at least twice, before going idle is daft. > > Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Frederic Weisbecker _______________________________________________ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc 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 Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3A315ECAAA1 for ; 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Tue, 20 Sep 2022 00:11:56 +1000 (AEST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id D9C176170E; Mon, 19 Sep 2022 14:11:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9D756C43470; Mon, 19 Sep 2022 14:11:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1663596714; bh=jFC8Ee/B68Lt0N7gS8RRayFaddE97lbLbiTesOHxN7A=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=IzEUztO2cOw2WGBqf2psEpxOvRZWujFXNz5ZdjgSX/J4eeWt8peadleymWnVJq9yH miv2FuTQ3EjwDSKX3MkzxozzcAWGP1+Tn47GbA/6EOK95uuXO7VoAg5QvEO/dNmdNm uM6gyiWTngHj5i/4Z4zRvF+6+ClWxzmiN+yu6JnsWI4IJqhvqrR2iIxxSEoq1plzY2 L9vaQjVUCB9xGl9OxM10M1znA53Mq55FwVxosD+eK8A/NXKEsCWXssqcS46ftjtLuN 3597C4YqcCzPUlYbazDmbh0TuPASDcDk4+kR+qL/xPPX4Pfu/x9UK+QueTPRhI9KKc hgtQWNHwmsxxg== Date: Mon, 19 Sep 2022 16:11:51 +0200 From: Frederic Weisbecker To: Peter Zijlstra Subject: Re: [PATCH v2 07/44] cpuidle,psci: Push RCU-idle into driver Message-ID: <20220919141151.GD58444@lothringen> References: <20220919095939.761690562@infradead.org> <20220919101520.802976773@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220919101520.802976773@infradead.org> X-Mailman-Approved-At: Tue, 20 Sep 2022 07:59:18 +1000 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: juri.lelli@redhat.com, rafael@kernel.org, catalin.marinas@arm.com, linus.walleij@linaro.org, bsegall@google.com, guoren@kernel.org, pavel@ucw.cz, agordeev@linux.ibm.com, srivatsa@csail.mit.edu, linux-arch@vger.kernel.org, vincent.guittot@linaro.org, chenhuacai@kernel.org, linux-acpi@vger.kernel.org, agross@kernel.org, geert@linux-m68k.org, linux-imx@nxp.com, vgupta@kernel.org, mattst88@gmail.com, borntraeger@linux.ibm.com, mturquette@baylibre.com, sammy@sammy.net, pmladek@suse.com, linux-pm@vger.kernel.org, Sascha Hauer , linux-um@lists.infradead.org, npiggin@gmail.com, tglx@linutronix.de, linux-omap@vger.kernel.org, dietmar.eggemann@arm.com, andreyknvl@gmail.com, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, senozhatsky@chromium.org, svens@linux.ibm.com, jolsa@kernel.org, tj@kernel.org, Andrew Morton , mark.rutland@arm.com, linux-ia64@vger.kernel.org, dave.hansen@linux.intel.com, vir tualization@lists.linux-foundation.org, James.Bottomley@HansenPartnership.com, jcmvbkbc@gmail.com, thierry.reding@gmail.com, kernel@xen0n.name, cl@linux.com, linux-s390@vger.kernel.org, vschneid@redhat.com, john.ogness@linutronix.de, ysato@users.sourceforge.jp, linux-sh@vger.kernel.org, festevam@gmail.com, deller@gmx.de, daniel.lezcano@linaro.org, jonathanh@nvidia.com, dennis@kernel.org, lenb@kernel.org, linux-xtensa@linux-xtensa.org, kernel@pengutronix.de, gor@linux.ibm.com, linux-arm-msm@vger.kernel.org, linux-alpha@vger.kernel.org, linux-m68k@lists.linux-m68k.org, loongarch@lists.linux.dev, shorne@gmail.com, chris@zankel.net, sboyd@kernel.org, dinguyen@kernel.org, bristot@redhat.com, alexander.shishkin@linux.intel.com, fweisbec@gmail.com, lpieralisi@kernel.org, atishp@atishpatra.org, linux@rasmusvillemoes.dk, kasan-dev@googlegroups.com, will@kernel.org, boris.ostrovsky@oracle.com, khilman@kernel.org, linux-csky@vger.kernel.org, pv-drivers@vmware.com, linux-snps-arc@lists.infradea d.org, mgorman@suse.de, jacob.jun.pan@linux.intel.com, Arnd Bergmann , ulli.kroll@googlemail.com, linux-clk@vger.kernel.org, rostedt@goodmis.org, ink@jurassic.park.msu.ru, bcain@quicinc.com, tsbogend@alpha.franken.de, linux-parisc@vger.kernel.org, ryabinin.a.a@gmail.com, sudeep.holla@arm.com, shawnguo@kernel.org, davem@davemloft.net, dalias@libc.org, tony@atomide.com, amakhalov@vmware.com, konrad.dybcio@somainline.org, bjorn.andersson@linaro.org, glider@google.com, hpa@zytor.com, sparclinux@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-riscv@lists.infradead.org, vincenzo.frascino@arm.com, anton.ivanov@cambridgegreys.com, jonas@southpole.se, yury.norov@gmail.com, richard@nod.at, x86@kernel.org, linux@armlinux.org.uk, mingo@redhat.com, aou@eecs.berkeley.edu, hca@linux.ibm.com, richard.henderson@linaro.org, stefan.kristiansson@saunalahti.fi, openrisc@lists.librecores.org, acme@kernel.org, paul.walmsley@sifive.com, linux-tegra@vger.kernel.org, namhyung@kernel.org, andriy.shevchenko@linux.intel.com, jpoimboe@kernel.org, dvyukov@google.com, jgross@suse.com, monstr@monstr.eu, linux-mips@vger.kernel.org, palmer@dabbelt.com, anup@brainfault.org, bp@alien8.de, johannes@sipsolutions.net, linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Mon, Sep 19, 2022 at 11:59:46AM +0200, Peter Zijlstra wrote: > Doing RCU-idle outside the driver, only to then temporarily enable it > again, at least twice, before going idle is daft. > > Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Frederic Weisbecker