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 28AC9C4332F for ; Wed, 19 Oct 2022 09:08:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232664AbiJSJI1 (ORCPT ); Wed, 19 Oct 2022 05:08:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56234 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232364AbiJSJFs (ORCPT ); Wed, 19 Oct 2022 05:05:48 -0400 Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [IPv6:2001:4d48:ad52:32c8:5054:ff:fe00:142]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B595121A for ; Wed, 19 Oct 2022 01:59:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=e/05vtL3e/h8I5D8aNJsFpE9yNHf7vv2MC9iGk/Z/xo=; b=mYz4VmAwJs4WLjg3KwmQSHUNn6 zjIu2MWjjda50OJmlIEAWcV05OvnCVI35YWd+P3lqlUjP9AXtH9+gbrRC3PqGQGQQP6+xrixUpLXy AsnDpZ8f2tdmCGxTLjKcOXECwbykdsKW5B+z6iiMH0nRiTPzR42hj5mg7aD8dBLAWHNR9upz6A6y8 A9+8r4X5jBcWxZHsubFNdiBBwQAa2nHyajSRyRrhdjtbj0OCuVNSc9cySGxLkyjRbFGwLvY8LF/xu SF9QjOiWbVH2s2OaGpx4l46nBVCQWn/EBADoFSOIP+md+jFWvHF3KlLW9xcgrjR7aAUF8SDZEYBn5 reo/Icmw==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:34786) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1ol4iq-0005Mw-Po; Wed, 19 Oct 2022 09:46:46 +0100 Received: from linux by shell.armlinux.org.uk with local (Exim 4.94.2) (envelope-from ) id 1ol4im-0001xS-D1; Wed, 19 Oct 2022 09:46:40 +0100 Date: Wed, 19 Oct 2022 09:46:40 +0100 From: "Russell King (Oracle)" To: Suzuki Kuruppassery Poulose Cc: Xiongfeng Wang , yehaiyang2@hisilicon.com, wanghuiqiang , Linux Kernel Mailing List , "linux-arm-kernel@lists.infradead.org" , mark.rutland@arm.com, Catalin Marinas , Anshuman Khandual Subject: Re: [Question] Question about supporting sysreg only CoreSight ETMv4.4 on ACPI machines Message-ID: References: <6e85db13-a65f-d4c6-1b6b-660a94cb7060@huawei.com> <9fc5ab20-c7f0-a917-4938-403e3661109f@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <9fc5ab20-c7f0-a917-4938-403e3661109f@arm.com> Sender: Russell King (Oracle) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Oct 18, 2022 at 10:18:08AM +0100, Suzuki Kuruppassery Poulose wrote: > That is true. Unfortunately, supporting this requires us to move away from > the AMBA framework (at least) for ETM4x devices. This is currently > developed by Anshuman. We can share it as soon as this is complete. Can we not find a way to create AMBA devices from ACPI? -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!