Received: by 2002:a05:6a10:1287:0:0:0:0 with SMTP id d7csp3596865pxv; Mon, 26 Jul 2021 07:34:54 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwG2AoIOpE7f36RKlxvhXUA/dULkc5OaNz4EjeQtEIcDfSe1FHw+9caNgs9YoLERBrwSDu+ X-Received: by 2002:a05:6e02:12e1:: with SMTP id l1mr13010338iln.0.1627310094047; Mon, 26 Jul 2021 07:34:54 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1627310094; cv=none; d=google.com; s=arc-20160816; b=M2/2Qbs7OUa7+PsmfD5uKCpGGXxr7REXMc2C8RBQcaa82rRqolpc+SK4EmaKkqkcDD 4QUrONlDSFRZ1Hbe6chOCCdE4RN5O+AzYrDfP5VFYgOyXKFiileTpz8QHKnmaS9Sl//+ hhYQ4pvT8tzK7nEvbblTg96rg1VSf4fKUzJsJgth/MsfutP/+0hAN7MpWjA46SDICthE 6ad0VAxQscpICuVcXn4x2+e+tSMRyPcO4VpFGM3mwYwOGWTm9k258KER2kezqNgwmjaj yNYN2Uktoi++D0uBvKydaZ/IAfB9jSUABBrDfBNRCxh8YiBrX1CCikLz02a2fdlJS4ed oeVQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:user-agent:references:in-reply-to :subject:cc:to:from:message-id:date; bh=FDVPr59zirCSXwKkvTARY5AnRHlzfbZP05L9SMGi/2w=; b=xjwTlW7bl+hnZHNIUBBw9XxWuhWhjGNqakFrV9PK54S9aE+mWy3DntNv2fFl5/WPkJ luaJXXhy1KF8Pa3VO89/+aUOX8kv8oFLBtW7h3el2LLy7cbn1BhVup4Wcyf/Y5EbUr3h 9rw3Gyy3q/f/6707RULDsgiJ0uk+W7do3HfxkU/TM3JtrL3vPWp7tbsFh4cxpYf4mGrY AT0E3dROpVmUP+5HhdFxxd0lrHd2MStnFaTn55hz4BVaDGwf6lGsYvIgZfYWCQo89P3N 3+FacsmViZXPREfXz8/3R1WoF4UBeSeIkjfyLUei2gMD+8r68j5hGERXr+JBL/+VRE53 Ocvw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id g5si57104ilb.152.2021.07.26.07.34.38; Mon, 26 Jul 2021 07:34:54 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233618AbhGZNwT (ORCPT + 99 others); Mon, 26 Jul 2021 09:52:19 -0400 Received: from mail.kernel.org ([198.145.29.99]:49020 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233206AbhGZNwS (ORCPT ); Mon, 26 Jul 2021 09:52:18 -0400 Received: from disco-boy.misterjones.org (disco-boy.misterjones.org [51.254.78.96]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B01F460F44; Mon, 26 Jul 2021 14:32:47 +0000 (UTC) Received: from sofa.misterjones.org ([185.219.108.64] helo=why.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1m81ev-00144S-RT; Mon, 26 Jul 2021 15:32:45 +0100 Date: Mon, 26 Jul 2021 15:32:45 +0100 Message-ID: <87im0xdu2a.wl-maz@kernel.org> From: Marc Zyngier To: Anup Patel Cc: Palmer Dabbelt , Palmer Dabbelt , Paul Walmsley , Thomas Gleixner , Daniel Lezcano , Rob Herring , Atish Patra , Alistair Francis , linux-riscv , "linux-kernel@vger.kernel.org List" , DTML , Anup Patel Subject: Re: [RFC PATCH v2 00/11] Linux RISC-V ACLINT Support In-Reply-To: References: <20210618123851.1344518-1-anup.patel@wdc.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/27.1 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) 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: anup@brainfault.org, palmer@dabbelt.com, palmerdabbelt@google.com, paul.walmsley@sifive.com, tglx@linutronix.de, daniel.lezcano@linaro.org, robh+dt@kernel.org, atish.patra@wdc.com, Alistair.Francis@wdc.com, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, anup.patel@wdc.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 26 Jul 2021 13:45:20 +0100, Anup Patel wrote: > > Hi Marc, > > I have taken the approach of IPI domains (like you suggested) in this series. > > What do you think ? I have commented on the irqchip driver. As for the RISC-V specific code, I'll let the architecture maintainers look into it. I guess the elephant in the room is that this spec seems to be evolving, and that there is no HW implementation (how this driver maps on SF's CLINT is anybody's guess). M. -- Without deviation from the norm, progress is not possible.