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 E759DEE4996 for ; Tue, 22 Aug 2023 06:36:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=y4Z/NidoTERC5DzxV1aRd9ZDwcC5k6KH2G4e6ADtrmA=; b=x+50k28UO0+Dxm i0K8Xu01v1WAS82V2wK1Wykp2TDwMTqqxGiQqOg4Tk3eMpIZ4EBYDZwvq2dwnjIZctkToHHT2KcJC zNxKPYOixoHipnUYHEa9JsIhcOWyvGNvLeuEZaa7K/P6n2oKtqSlLqDWgAgrcAsT0KsnFjL0xWJyV PH0H9Zy0CRaBCk2xoZRbUtyZvFRukKrJO0/si8zuJPgADocbed2PnqWA8/C87iq5t7fyb8D+sskzK D8y4sg4d14Xpn7WiD9nCXTk5/BK/KrNO+6NPaUjQ1ExJjJSkPNa5kHp/+BDZYQIpGRuPy8xic+gLx CTcBbttfCk4n3VKdy9wg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qYKze-00FFNB-24; Tue, 22 Aug 2023 06:35:58 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qYKzb-00FFMb-2l for linux-arm-kernel@lists.infradead.org; Tue, 22 Aug 2023 06:35:57 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id EE0F12F4; Mon, 21 Aug 2023 23:36:31 -0700 (PDT) Received: from FVFF77S0Q05N (unknown [10.57.3.221]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 5A2D23F740; Mon, 21 Aug 2023 23:35:48 -0700 (PDT) Date: Tue, 22 Aug 2023 07:35:41 +0100 From: Mark Rutland To: Doug Anderson Cc: Catalin Marinas , Will Deacon , Sumit Garg , Daniel Thompson , Marc Zyngier , linux-perf-users@vger.kernel.org, ito-yuichi@fujitsu.com, Chen-Yu Tsai , Ard Biesheuvel , Stephen Boyd , Peter Zijlstra , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, kgdb-bugreport@lists.sourceforge.net, Masayoshi Mizuma , "Rafael J . Wysocki" , Lecopzer Chen , linux-kernel@vger.kernel.org Subject: Re: [PATCH v9 5/7] arm64: ipi_debug: Add support for backtrace using the debug IPI Message-ID: References: <20230601213440.2488667-1-dianders@chromium.org> <20230601143109.v9.5.I65981105e1f62550b0316625dd1e599deaf9e1aa@changeid> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230821_233555_971405_4288FDF0 X-CRM114-Status: GOOD ( 25.45 ) X-BeenThere: linux-arm-kernel@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="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gTW9uLCBBdWcgMjEsIDIwMjMgYXQgMDU6MDY6NTBQTSAtMDcwMCwgRG91ZyBBbmRlcnNvbiB3 cm90ZToKPiBPbiBNb24sIEF1ZyA3LCAyMDIzIGF0IDM6MjPigK9BTSBNYXJrIFJ1dGxhbmQgPG1h cmsucnV0bGFuZEBhcm0uY29tPiB3cm90ZToKPiA+IE9uIFRodSwgSnVuIDAxLCAyMDIzIGF0IDAy OjMxOjQ5UE0gLTA3MDAsIERvdWdsYXMgQW5kZXJzb24gd3JvdGU6Cj4gPiA+IEZyb206IFN1bWl0 IEdhcmcgPHN1bWl0LmdhcmdAbGluYXJvLm9yZz4KCj4gPiA+ICBzdGF0aWMgaXJxcmV0dXJuX3Qg aXBpX2RlYnVnX2hhbmRsZXIoaW50IGlycSwgdm9pZCAqZGF0YSkKPiA+ID4gIHsKPiA+ID4gLSAg ICAgLyogbm9wLCBOTUkgaGFuZGxlcnMgZm9yIHNwZWNpYWwgZmVhdHVyZXMgY2FuIGJlIGFkZGVk IGhlcmUuICovCj4gPiA+ICsgICAgIGlycXJldHVybl90IHJldCA9IElSUV9OT05FOwo+ID4gPiAr Cj4gPiA+ICsgICAgIC8qCj4gPiA+ICsgICAgICAqIE5PVEU6IEp1c3QgbGlrZSBpbiBhcmNoX3Ry aWdnZXJfY3B1bWFza19iYWNrdHJhY2UoKSwgd2UncmUgY2FsbGluZwo+ID4gPiArICAgICAgKiBh IGZ1bmN0aW9uIHdpdGggIm5taV8iIGluIHRoZSBuYW1lIGJ1dCBpdCB3b3JrcyBmaW5lIGV2ZW4g aWYgd2UKPiA+ID4gKyAgICAgICogYXJlIHVzaW5nIGEgcmVndWxhb3IgSVBJLgo+ID4gPiArICAg ICAgKi8KPiA+ID4gKyAgICAgaWYgKG5taV9jcHVfYmFja3RyYWNlKGdldF9pcnFfcmVncygpKSkK PiA+ID4gKyAgICAgICAgICAgICByZXQgPSBJUlFfSEFORExFRDsKPiA+ID4KPiA+Cj4gPiBEb2Vz IHRoaXMgbmVlZCB0aGUgcHJpbnRrX2RlZmVycmVkX3tlbnRlcixleGl0fSgpIHRoYXQgMzItYml0 IGFybSBoYXM/Cj4gCj4gSSBkb24ndCBfdGhpbmtfIHNvLCBidXQgSSBhbHNvIGRvbid0IF90aGlu a18gaXQncyBuZWVkZWQgZm9yIGFybTMyLgo+IDstKSBMZXQgbWUgZXhwbGFpbiBteSBsb2dpYyBh bmQgeW91IGNhbiB0ZWxsIG1lIGlmIGl0IHNvdW5kcyByaWdodCB0bwo+IHlvdS4KPiAKPiBJZiB3 ZSdyZSBkb2luZyB0aGUgYmFja3RyYWNlIGluIHBzZXVkby1OTUkgY29udGV4dCB0aGVuIHdlIGRl ZmluaXRlbHkKPiBkb24ndCBuZWVkIGl0LiBTcGVjaWZpY2FsbHksIHRoZSBwcmludGtfZGVmZXJy ZWRfe2VudGVyLGV4aXR9KCkganVzdAo+IG1hbmFnZXMgdGhlIHBlci1jcHUgInByaW50a19jb250 ZXh0IiB2YWx1ZS4gVGhhdCB2YWx1ZSBkb2Vzbid0IG1hdHRlcgo+IGlmICJpbl9ubWkoKSIgcmV0 dXJucyB0cnVlLgo+IAo+IElmIHdlJ3JlIF9ub3RfIGRvaW5nIHRoZSBiYWNrdHJhY2UgaW4gcHNl dWRvLU5NSSBjb250ZXh0IHRoZW4gSSB0aGluawo+IHdlIGFsc28gZG9uJ3QgbmVlZCBpdC4gQWZ0 ZXIgYWxsLCBpZiB3ZSdyZSBub3QgaW4gcHNldWRvLU5NSSBjb250ZXh0Cj4gdGhlbiBpdCdzIHBl cmZlY3RseSBmaW5lIHRvIHByaW50LCByaWdodD8KPiAKPiBXaGlsZSBpdCdzIGhhcmQgdG8ga25v dyAxMDAlIGZvciBzdXJlLCBteSBiZXN0IGd1ZXNzIGlzIHRoYXQgaW4gYXJtCj4gdGhpcyBtaWdo dCBoYXZlIGhlbHBlZCBwcmV2ZW50IHN0YWNrIHRyYWNlcyBmcm9tIGdldHRpbmcgaW50ZXJzcGVy c2VkCj4gYW1vbmcgb25lIGFub3RoZXIuIEkgZ3Vlc3MgdGhpcyBpcyBubyBsb25nZXIgbmVlZGVk IGFzIG9mIGNvbW1pdAo+IDU1ZDZhZjFkNjY4OCAoImxpYi9ubWlfYmFja3RyYWNlOiBleHBsaWNp dGx5IHNlcmlhbGl6ZSBiYW5uZXIgYW5kCj4gcmVncyIpPyBJbiBhbnkgY2FzZSwgd2hlbiBJIHRl c3RlZCB0aGlzIGVhcmxpZXIgdGhpbmdzIHNlZW1lZCB0bwo+IHByaW50b3V0IGZpbmUgd2l0aG91 dCBpdC4uLgoKVGhhbmtzIGZvciB0aGF0IGV4cGxhbmF0aW9uOyB0aGF0IG1ha2VzIHNlbnNlIHRv IG1lISBMb29raW5nIGFyb3VuZCBhIGJpdCBJIHNlZQp0aGF0IHg4NiBkb2Vzbid0IGJvdGhlciBl aXRoZXIuCgo+IFRoYXQgYmVpbmcgc2FpZCwgaXQgd291bGRuJ3QgaHVydCB0byBpbmNsdWRlIGl0 IGhlcmUgYW5kIEknbGwgZG8gaXQgaWYgeW91Cj4gd2FudC4KCk5vIG5lZWQgLS0gSSdtIGhhcHB5 IHdpdGhvdXQgaXQuCgpUaGFua3MsCk1hcmsuCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlzdApsaW51eC1h cm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcv bWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==