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 1A8EDECAAD3 for ; Mon, 5 Sep 2022 14:30:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237058AbiIEOa4 (ORCPT ); Mon, 5 Sep 2022 10:30:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55498 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237179AbiIEOax (ORCPT ); Mon, 5 Sep 2022 10:30:53 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A86653D5BE for ; Mon, 5 Sep 2022 07:30:52 -0700 (PDT) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id 2EC911F9ED; Mon, 5 Sep 2022 14:30:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1662388251; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=QZY74CtrE2fNgBYPVcD9k7Aap6fAvNiS5mnQBJZXgfk=; b=Y/sqvnNEb0jqjQip4GXS88Ch8H/DcZq7iVMHNE55WU6sJEmuy80sE2hSUZzklm47Vud7Tv GaYLg9C/znmcnt40i6HNIirNichH0DDFmZcJstBQk+KznnSIlSLtXNKh3gqFQcM23c3YHM usntVtX+azNzsWOe/Vhq5X+Pl62xyVQ= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1662388251; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=QZY74CtrE2fNgBYPVcD9k7Aap6fAvNiS5mnQBJZXgfk=; b=JuuVPbKcN+146YtgSa5ELPUX+CWIK61n5BXmhJTwNDw/+cjRDPry6M5iM0kdQR1lmidbGQ c+VZXhF3nKuL3SCg== Received: from hawking.suse.de (unknown [10.168.4.11]) by relay2.suse.de (Postfix) with ESMTP id 83EC32C141; Mon, 5 Sep 2022 14:30:50 +0000 (UTC) Received: by hawking.suse.de (Postfix, from userid 17005) id 92308444AFD; Mon, 5 Sep 2022 16:30:48 +0200 (CEST) From: Andreas Schwab To: Heiko Stuebner Cc: atishp@atishpatra.org, anup@brainfault.org, will@kernel.org, mark.rutland@arm.com, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Conor.Dooley@microchip.com Subject: Re: [PATCH v3] drivers/perf: riscv_pmu_sbi: add support for PMU variant on T-Head C9xx cores References: <20220905141644.2468891-1-heiko@sntech.de> X-Yow: Everybody gets free BORSCHT! Date: Mon, 05 Sep 2022 16:30:48 +0200 In-Reply-To: <20220905141644.2468891-1-heiko@sntech.de> (Heiko Stuebner's message of "Mon, 5 Sep 2022 16:16:44 +0200") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.1.91 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sep 05 2022, Heiko Stuebner wrote: > To work properly, this requires a matching change in SBI, though the actual > interface between kernel and SBI does not change. What happens if you mix different kernel and SBI versions? -- Andreas Schwab, SUSE Labs, schwab@suse.de GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7 "And now for something completely different."