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 268A0C54EE9 for ; Fri, 16 Sep 2022 10:20:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231726AbiIPKUd (ORCPT ); Fri, 16 Sep 2022 06:20:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37190 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231765AbiIPKSo (ORCPT ); Fri, 16 Sep 2022 06:18:44 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0204DAF498; Fri, 16 Sep 2022 03:12:33 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 5B013B82539; Fri, 16 Sep 2022 10:11:55 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A56FFC433D6; Fri, 16 Sep 2022 10:11:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1663323114; bh=lRrjMYNEhc4hIHbSe8kC+g2BSPOxlDMtXBXG3XUb/uA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fVd403p7jK8Q9QET7uRQ7uUPJx2wZLDNjPBhux69tr75X/qQe7inXhjys/GbfOhZN vI5orem4nCabjIVF4USxgkbsUYRu4P9WLxVVgTSvNBEH2AkXIj/nOc5LidTqGZsopl vT+rA+yRxANPYUYaLZY1hURRnS7JQf0Zx0oi7pCs= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Mario Limonciello , Chuanhong Guo , XiaoYan Li , "Rafael J. Wysocki" Subject: [PATCH 5.15 02/35] ACPI: resource: skip IRQ override on AMD Zen platforms Date: Fri, 16 Sep 2022 12:08:25 +0200 Message-Id: <20220916100447.037928911@linuxfoundation.org> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20220916100446.916515275@linuxfoundation.org> References: <20220916100446.916515275@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Chuanhong Guo commit 9946e39fe8d0a5da9eb947d8e40a7ef204ba016e upstream. IRQ override isn't needed on modern AMD Zen systems. There's an active low keyboard IRQ on AMD Ryzen 6000 and it will stay this way on newer platforms. This IRQ override breaks keyboards for almost all Ryzen 6000 laptops currently on the market. Skip this IRQ override for all AMD Zen platforms because this IRQ override is supposed to be a workaround for buggy ACPI DSDT and we can't have a long list of all future AMD CPUs/Laptops in the kernel code. If a device with buggy ACPI DSDT shows up, a separated list containing just them should be created. Link: https://bugzilla.kernel.org/show_bug.cgi?id=216118 Suggested-by: Mario Limonciello Signed-off-by: Chuanhong Guo Acked-by: Mario Limonciello Tested-by: XiaoYan Li Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/acpi/resource.c | 10 ++++++++++ 1 file changed, 10 insertions(+) --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -416,6 +416,16 @@ static bool acpi_dev_irq_override(u32 gs { int i; +#ifdef CONFIG_X86 + /* + * IRQ override isn't needed on modern AMD Zen systems and + * this override breaks active low IRQs on AMD Ryzen 6000 and + * newer systems. Skip it. + */ + if (boot_cpu_has(X86_FEATURE_ZEN)) + return false; +#endif + for (i = 0; i < ARRAY_SIZE(skip_override_table); i++) { const struct irq_override_cmp *entry = &skip_override_table[i];