From patchwork Thu Jul 22 18:10:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ping Bao X-Patchwork-Id: 1508957 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.ubuntu.com (client-ip=91.189.94.19; helo=huckleberry.canonical.com; envelope-from=kernel-team-bounces@lists.ubuntu.com; receiver=) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=Iobr1eog; dkim-atps=neutral Received: from huckleberry.canonical.com (huckleberry.canonical.com [91.189.94.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4GWJ8m2CP0z9sX1; Fri, 23 Jul 2021 15:41:26 +1000 (AEST) Received: from localhost ([127.0.0.1] helo=huckleberry.canonical.com) by huckleberry.canonical.com with esmtp (Exim 4.86_2) (envelope-from ) id 1m6nvz-0006kM-Mu; Fri, 23 Jul 2021 05:41:19 +0000 Received: from mail-pl1-f170.google.com ([209.85.214.170]) by huckleberry.canonical.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1m6d9T-0004W9-Dr for kernel-team@lists.ubuntu.com; Thu, 22 Jul 2021 18:10:31 +0000 Received: by mail-pl1-f170.google.com with SMTP id o8so5441231plg.11 for ; Thu, 22 Jul 2021 11:10:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=KbZQdGGnLzGFp++AKjZbmt256jomSgD8uDR0hICU0bE=; b=Iobr1eogcxjAXKfmnDfs6EKP74fEAFDbAZDz7pUOGSZkCJ1hBDt1ahRb2vBdhYs9Oj xAUxNoZH/hEsf8huBlwP3+o7gvL/vOhJsTXWqjBkRELhuopJEqYj7j2xpFQRHFYNiQaz O2p4426lTmw03XmtI89uokFkDrMjo5RBjvDGayW5YxTflQ0mhS+q6OyobucMzQHGle39 NZ6LANJRp+4t9BrSntKGdCO+aFjmi09KwfpM4cRpnJ/fPVSNzhhNBQY2+jB4X8/lpOWX yT2f4qiQ3n+AikaWiBhUG4RiEKtwi/56HoWD2zc9XDIo0f1P0AbPk6IFhMQH/yZMgua+ g3Vg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=KbZQdGGnLzGFp++AKjZbmt256jomSgD8uDR0hICU0bE=; b=bX+XLUCWv44LwZ0voG8MkvWn/EIM74/dwHg0Bn0PUhZeGw64xSEPbXTxbx9B/XZw3S 4c1Pm0lbvRrXTDeNvGP01TMWIHLUfVFvrBTQfKS531KJEGrwdRgICKqyH+95sgdVIdXO wCYYwWHY/ZWkEdjbyJ3E8GGHGc8iD8jQQwWTNwHmPtTIha2n3/XudTiGSYC87DqhgB0R GrLdPQ714s7/7nnBhuAKA90E2PEycz14aSp+pnlv1pYV3hTl8w+ApaZbPtxbpofU7Btt bkI+vG/oJSmvA7qTb5X1xKkacemxmR9zx6GXK0h9JRBWIioHZpWbPexicyve22tOFsKC pckA== X-Gm-Message-State: AOAM530dL1OHcF6xW6NAKzmAkBiLwaJg8C0KJqHfowuvjJsXPuT5BqJS 9qErlYOhntiw7YmGpAiEEhx8tpf6XhDQ6g== X-Google-Smtp-Source: ABdhPJyAXQ1SNq4GnUwGiO3jzlm8GuCazspSR/prcJ+4YdGo4GFSebbVpqIBO5321h6SsudFCY8TwA== X-Received: by 2002:a65:5544:: with SMTP id t4mr1171967pgr.240.1626977429201; Thu, 22 Jul 2021 11:10:29 -0700 (PDT) Received: from localhost.localdomain ([2601:646:9800:a920:4d4e:f25e:4526:868d]) by smtp.gmail.com with ESMTPSA id i12sm25874056pjj.9.2021.07.22.11.10.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jul 2021 11:10:28 -0700 (PDT) From: Ping Bao X-Google-Original-From: Ping Bao To: kernel-team@lists.ubuntu.com Subject: [PATCH] UBUNTU: SAUCE: PCI/ASPM: Add AlderLake ASPM support for links under VMD domain Date: Thu, 22 Jul 2021 11:10:22 -0700 Message-Id: <20210722181022.17110-1-ping.a.bao@intel.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Received-SPF: pass client-ip=209.85.214.170; envelope-from=pingbao@gmail.com; helo=mail-pl1-f170.google.com X-Mailman-Approved-At: Fri, 23 Jul 2021 05:41:18 +0000 X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.20 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ping Bao Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: "kernel-team" BugLink: https://bugs.launchpad.net/bugs/1889384 Add AlderLake ASPM support for links under VMD to reach deeper power saving state. Signed-off-by: Ping Bao --- drivers/pci/quirks.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index fb13b3109a43..baa727330cdc 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -5650,7 +5650,7 @@ DECLARE_PCI_FIXUP_CLASS_HEADER(0x1ac1, 0x089a, PCI_CLASS_NOT_DEFINED, 8, apex_pci_fixup_class); /* - * Device [8086:9a09], [8086:a0b0] and [8086:a0bc] + * Device [8086:9a09], [8086:a0b0], [8086:a0bc] and [8086:464d] * BIOS may not be able to access config space of devices under VMD domain, so * it relies on software to enable ASPM for links under VMD. */ @@ -5658,6 +5658,7 @@ static const struct pci_device_id vmd_bridge_tbl[] = { { PCI_VDEVICE(INTEL, 0x9a09) }, { PCI_VDEVICE(INTEL, 0xa0b0) }, { PCI_VDEVICE(INTEL, 0xa0bc) }, + { PCI_VDEVICE(INTEL, 0x464d) }, { } };