From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9F7302EBB82; Tue, 22 Jul 2025 14:53:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753196014; cv=none; b=TNxtIBH7gYBIsf7SiCfu4TSlwPr5TJOTryy98tljqlB2hZYL6BEf+CQDxmFfm2hIZYZto/gcNhUAGThVF0Qiv6fl4SDHdMfvOu5RXNqJ6GcP7ncsh5ffGbFATFOIfTe8yIXXcRwLIsP97nn99BqnYvinDWi2WNRG5U/abgW7g7g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753196014; c=relaxed/simple; bh=61Qef7bAbwjN2zD31oZ9ZSeE/FJMzRp+UEuDTMZ3aTI=; h=Date:Message-ID:From:To:Cc:Subject:In-Reply-To:References: MIME-Version:Content-Type; b=F/HhjETnSR9mFDOu2iHtg/XSUzM2BHgTh79fKwhsD3eu5qwebFm5sb//DQLUG2bYND9IfVAJE+RtjN41MGrEW8csTxUyQkBiyKQUoFL6eWHG6X6Q8OLutXeOjxzHH1RNkyNPuHUmleFJ+QWvbJRMpZy4p3gEomIYovHnj/Kg8Ro= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=feTPEyeV; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="feTPEyeV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2E5D1C4CEEB; Tue, 22 Jul 2025 14:53:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1753196014; bh=61Qef7bAbwjN2zD31oZ9ZSeE/FJMzRp+UEuDTMZ3aTI=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=feTPEyeVd2o1fiy5mtFyl9f9jvx0q/rJJpMcy1HpgCFOlNfke+ImcCX5M/F9oNbqS NAO1WRKAZAOpUMq/V6hsX8AgRosMVHG8l9253Rls2Wdps1v0ur1xc8KP//llwkpbHo xqBxnZFyWv/oesfYRQEbnlJbJYfUx609sS5/6V9CJzgRwbfzERXc6G5lJDqcIlKywT TIIBpJ3ME+jq0mNJxkSqpsmMudqAlCdUZrZlG8g4nt0oRraW9UXo64v60458ZYd8n0 +VzDdL4okrquG5KOJH0umK3IEqqkVP9jY2Z2qU8uxp3V+abPijPgJBJ5zU1gY9FEJN FlySE/w5chIfQ== Received: from sofa.misterjones.org ([185.219.108.64] helo=goblin-girl.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1ueEN1-000NzU-Q2; Tue, 22 Jul 2025 15:53:31 +0100 Date: Tue, 22 Jul 2025 15:53:30 +0100 Message-ID: <86ikjk8efp.wl-maz@kernel.org> From: Marc Zyngier To: Yeoreum Yun Cc: catalin.marinas@arm.com, will@kernel.org, broonie@kernel.org, oliver.upton@linux.dev, shameerali.kolothum.thodi@huawei.com, joey.gouly@arm.com, james.morse@arm.com, ardb@kernel.org, scott@os.amperecomputing.com, suzuki.poulose@arm.com, yuzenghui@huawei.com, mark.rutland@arm.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH v5 0/5] support FEAT_LSUI and apply it on futex atomic ops In-Reply-To: <20250722121956.1509403-1-yeoreum.yun@arm.com> References: <20250722121956.1509403-1-yeoreum.yun@arm.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/30.1 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: yeoreum.yun@arm.com, catalin.marinas@arm.com, will@kernel.org, broonie@kernel.org, oliver.upton@linux.dev, shameerali.kolothum.thodi@huawei.com, joey.gouly@arm.com, james.morse@arm.com, ardb@kernel.org, scott@os.amperecomputing.com, suzuki.poulose@arm.com, yuzenghui@huawei.com, mark.rutland@arm.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-kernel@vger.kernel.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Hi Yeoreum, On Tue, 22 Jul 2025 13:19:51 +0100, Yeoreum Yun wrote: > > Since Armv9.6, FEAT_LSUI supplies the load/store instructions for > previleged level to access to access user memory without clearing > PSTATE.PAN bit. > > This patchset support FEAT_LSUI and applies in futex atomic operation > where can replace from ldxr/stlxr pair implmentation with clearing > PSTATE.PAN bit to correspondant load/store unprevileged atomic operation > without clearing PSTATE.PAN bit. [...] Please give people a chance to review your series without having to jump to the new one within 48 hours. If anything, it actively prevents people from reviewing it (why would I review it, since the author is going to post a new version in a couple of days...). Also, given that we're >this< close to the next merge window, I don't think this series is likely to be a candidate for 6.17. Give yourself the space to polish the series and look at it with a critical eye, there is plenty of time for 6.18. Thanks, M. -- Without deviation from the norm, progress is not possible.