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 305DFCD37B0 for ; Mon, 18 Sep 2023 13:20:21 +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:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=/uTvHdTwqRx73WmtsjP+AwETelyX/vxkRDATvitDH5A=; b=FI1Kx6FyyBBZcB JylNuV+pr/ws2hio8T9RVHODRXpTKB6r7UmZNIXNTOmGTAuUwK/7mNcnZ96/YMmEJHx7tPBT7MPne I4i7hXX6zGcz5JeymRbMjyvCnVPMok58hHoygdOirxQ3/Le9C8gqjF929zS7upQfkAGkm3Tkh9lFA BoEJmhC85sYeL2EwC6OPIufBLjfMHFZlkfLrrChjsm3c1toXqAymhwx10pde5/g61sv0Of7Rs8B1A v9WUNF/duYQWTyzblBVmJohuSnIG9iOM/WO1GT2ITH4tlPJ/mvt8Z19dcZNEoir8QOxeQwYY3YxBo QdZou8j3IQHPkud1MGfQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qiEAm-00FXIF-1s; Mon, 18 Sep 2023 13:20:20 +0000 Received: from mgamail.intel.com ([134.134.136.100]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qiEAk-00FXGW-0Z; Mon, 18 Sep 2023 13:20:19 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1695043218; x=1726579218; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=uEKrgp0fS4TcV/kqj/T1ibXnz9U6nSS/hcSxBB6l/C0=; b=Hu2/MVYAR9cFZT28C5yCMzLPEOEG3FlmX2If6VZE8jg3MCZZ7kJ2ba0O g6IaneKy+LKXYu9pHTyqWZ2ORk6yCOCCYvywwOgtWWmf0CIEmq64M9QrA a8S2m/S4BT+Ch8bEtc/zAsTH54FDrcknytD/KZ357k8tqAF4euJmrX2Ou W84kNFB4lSRcHy9BmaJy4MMcN/Hq5k0AZ1V9GPgMsu/y9KLVDHvOSK2BU ZcP63JASCSh1fziAz+Hc4i5hd57sdPUOvC09VqllP713an04dS/Nuyi38 y59yCNLRYF0uD1gh3k8KtWbDdWdeWYDI7GjHmP0br1voARL2P09t/nuoo Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10837"; a="446113410" X-IronPort-AV: E=Sophos;i="6.02,156,1688454000"; d="scan'208";a="446113410" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Sep 2023 06:12:36 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10837"; a="811342150" X-IronPort-AV: E=Sophos;i="6.02,156,1688454000"; d="scan'208";a="811342150" Received: from nprotaso-mobl1.ccr.corp.intel.com (HELO ijarvine-mobl2.ger.corp.intel.com) ([10.252.49.156]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Sep 2023 06:12:30 -0700 From: =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= To: linux-pci@vger.kernel.org, Bjorn Helgaas , Lorenzo Pieralisi , Rob Herring , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , Lukas Wunner , "Rafael J . Wysocki" , Heiner Kallweit , Emmanuel Grumbach , linux-kernel@vger.kernel.org, Bjorn Helgaas Cc: ath10k@lists.infradead.org, ath11k@lists.infradead.org, ath12k@lists.infradead.org, intel-wired-lan@lists.osuosl.org, linux-arm-kernel@lists.infradead.org, linux-bluetooth@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-rdma@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= Subject: [PATCH v2 05/13] PCI/ASPM: Add pci_enable_link_state() Date: Mon, 18 Sep 2023 16:10:55 +0300 Message-Id: <20230918131103.24119-6-ilpo.jarvinen@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230918131103.24119-1-ilpo.jarvinen@linux.intel.com> References: <20230918131103.24119-1-ilpo.jarvinen@linux.intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230918_062018_262779_B6A082B3 X-CRM114-Status: GOOD ( 15.16 ) X-BeenThere: ath10k@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: "ath10k" Errors-To: ath10k-bounces+ath10k=archiver.kernel.org@lists.infradead.org cGNpX2Rpc2FibGVfbGlua19zdGF0ZSgpIGxhY2tzIGEgc3ltbWV0cmljIHBhaXIuIFNvbWUgZHJp dmVycyB3YW50IHRvCmRpc2FibGUgQVNQTSBkdXJpbmcgY2VydGFpbiBwaGFzZXMgb2YgdGhlaXIg b3BlcmF0aW9uIGJ1dCB0aGVuCnJlLWVuYWJsZSBpdCBsYXRlciBvbi4gSWYgcGNpX2Rpc2FibGVf bGlua19zdGF0ZSgpIGlzIG1hZGUgZm9yIHRoZQpkZXZpY2UsIHRoZXJlIGlzIGN1cnJlbnRseSBu byB3YXkgdG8gcmUtZW5hYmxlIHRoZSBzdGF0ZXMgdGhhdCB3ZXJlCmRpc2FibGVkLgoKQWRkIHBj aV9lbmFibGVfbGlua19zdGF0ZSgpIHRvIHJlbW92ZSBBU1BNIHN0YXRlcyBmcm9tIHRoZSBzdGF0 ZQpkaXNhYmxlIG1hc2suCgpTaWduZWQtb2ZmLWJ5OiBJbHBvIErDpHJ2aW5lbiA8aWxwby5qYXJ2 aW5lbkBsaW51eC5pbnRlbC5jb20+Ci0tLQogZHJpdmVycy9wY2kvcGNpZS9hc3BtLmMgfCA0MiAr KysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKwogaW5jbHVkZS9saW51eC9w Y2kuaCAgICAgfCAgMiArKwogMiBmaWxlcyBjaGFuZ2VkLCA0NCBpbnNlcnRpb25zKCspCgpkaWZm IC0tZ2l0IGEvZHJpdmVycy9wY2kvcGNpZS9hc3BtLmMgYi9kcml2ZXJzL3BjaS9wY2llL2FzcG0u YwppbmRleCA5MWRjOTVhY2E5MGYuLmY0NWQxOGQ0N2MyMCAxMDA2NDQKLS0tIGEvZHJpdmVycy9w Y2kvcGNpZS9hc3BtLmMKKysrIGIvZHJpdmVycy9wY2kvcGNpZS9hc3BtLmMKQEAgLTExMTcsNiAr MTExNyw0OCBAQCBpbnQgcGNpX2Rpc2FibGVfbGlua19zdGF0ZShzdHJ1Y3QgcGNpX2RldiAqcGRl diwgaW50IHN0YXRlKQogfQogRVhQT1JUX1NZTUJPTChwY2lfZGlzYWJsZV9saW5rX3N0YXRlKTsK IAorLyoqCisgKiBwY2lfZW5hYmxlX2xpbmtfc3RhdGUgLSBSZS1lbmFibGUgZGV2aWNlJ3MgbGlu ayBzdGF0ZQorICogQHBkZXY6IFBDSSBkZXZpY2UKKyAqIEBzdGF0ZTogQVNQTSBsaW5rIHN0YXRl cyB0byByZS1lbmFibGUKKyAqCisgKiBFbmFibGUgZGV2aWNlJ3MgbGluayBzdGF0ZSB0aGF0IHdl cmUgcHJldmlvdXNseSBkaXNhYmxlIHNvIHRoZSBsaW5rIGlzCisgKiBhbGxvd2VkIHRvIGVudGVy IHRoZSBzcGVjaWZpYyBzdGF0ZXMuIE5vdGUgdGhhdCBpZiB0aGUgQklPUyBkaWRuJ3QgZ3JhbnQK KyAqIEFTUE0gY29udHJvbCB0byB0aGUgT1MsIHRoaXMgZG9lcyBub3RoaW5nIGJlY2F1c2Ugd2Ug Y2FuJ3QgdG91Y2ggdGhlCisgKiBMTktDVEwgcmVnaXN0ZXIuCisgKgorICogUmV0dXJuOiAwIG9y IGEgbmVnYXRpdmUgZXJybm8uCisgKi8KK2ludCBwY2lfZW5hYmxlX2xpbmtfc3RhdGUoc3RydWN0 IHBjaV9kZXYgKnBkZXYsIGludCBzdGF0ZSkKK3sKKwlzdHJ1Y3QgcGNpZV9saW5rX3N0YXRlICps aW5rID0gcGNpZV9hc3BtX2dldF9saW5rKHBkZXYpOworCisJaWYgKCFsaW5rKQorCQlyZXR1cm4g LUVJTlZBTDsKKwkvKgorCSAqIEEgZHJpdmVyIHJlcXVlc3RlZCB0aGF0IEFTUE0gYmUgZW5hYmxl ZCBvbiB0aGlzIGRldmljZSwgYnV0CisJICogaWYgd2UgZG9uJ3QgaGF2ZSBwZXJtaXNzaW9uIHRv IG1hbmFnZSBBU1BNIChlLmcuLCBvbiBBQ1BJCisJICogc3lzdGVtcyB3ZSBoYXZlIHRvIG9ic2Vy dmUgdGhlIEZBRFQgQUNQSV9GQURUX05PX0FTUE0gYml0IGFuZAorCSAqIHRoZSBfT1NDIG1ldGhv ZCksIHdlIGNhbid0IGhvbm9yIHRoYXQgcmVxdWVzdC4KKwkgKi8KKwlpZiAoYXNwbV9kaXNhYmxl ZCkgeworCQlwY2lfd2FybihwZGV2LCAiY2FuJ3QgZW5hYmxlIEFTUE07IE9TIGRvZXNuJ3QgaGF2 ZSBBU1BNIGNvbnRyb2xcbiIpOworCQlyZXR1cm4gLUVQRVJNOworCX0KKworCW11dGV4X2xvY2so JmFzcG1fbG9jayk7CisJbGluay0+YXNwbV9kaXNhYmxlICY9IH5wY2lfbGlua19zdGF0ZV9tYXNr KHN0YXRlKTsKKwlwY2llX2NvbmZpZ19hc3BtX2xpbmsobGluaywgcG9saWN5X3RvX2FzcG1fc3Rh dGUobGluaykpOworCisJaWYgKHN0YXRlICYgUENJRV9MSU5LX1NUQVRFX0NMS1BNKQorCQlsaW5r LT5jbGtwbV9kaXNhYmxlID0gMDsKKwlwY2llX3NldF9jbGtwbShsaW5rLCBwb2xpY3lfdG9fY2xr cG1fc3RhdGUobGluaykpOworCW11dGV4X3VubG9jaygmYXNwbV9sb2NrKTsKKworCXJldHVybiAw OworfQorRVhQT1JUX1NZTUJPTChwY2lfZW5hYmxlX2xpbmtfc3RhdGUpOworCiAvKioKICAqIHBj aV9zZXRfZGVmYXVsdF9saW5rX3N0YXRlIC0gU2V0IHRoZSBkZWZhdWx0IGRldmljZSBsaW5rIHN0 YXRlCiAgKiBAcGRldjogUENJIGRldmljZQpkaWZmIC0tZ2l0IGEvaW5jbHVkZS9saW51eC9wY2ku aCBiL2luY2x1ZGUvbGludXgvcGNpLmgKaW5kZXggM2MyNGNhMTY0MTA0Li44NDRkMDkyMzAyNjQg MTAwNjQ0Ci0tLSBhL2luY2x1ZGUvbGludXgvcGNpLmgKKysrIGIvaW5jbHVkZS9saW51eC9wY2ku aApAQCAtMTc3NiwxMSArMTc3NiwxMyBAQCBleHRlcm4gYm9vbCBwY2llX3BvcnRzX25hdGl2ZTsK IGludCBwY2lfZGlzYWJsZV9saW5rX3N0YXRlKHN0cnVjdCBwY2lfZGV2ICpwZGV2LCBpbnQgc3Rh dGUpOwogaW50IHBjaV9kaXNhYmxlX2xpbmtfc3RhdGVfbG9ja2VkKHN0cnVjdCBwY2lfZGV2ICpw ZGV2LCBpbnQgc3RhdGUpOwogI2lmZGVmIENPTkZJR19QQ0lFQVNQTQoraW50IHBjaV9lbmFibGVf bGlua19zdGF0ZShzdHJ1Y3QgcGNpX2RldiAqcGRldiwgaW50IHN0YXRlKTsKIGludCBwY2lfc2V0 X2RlZmF1bHRfbGlua19zdGF0ZShzdHJ1Y3QgcGNpX2RldiAqcGRldiwgaW50IHN0YXRlKTsKIHZv aWQgcGNpZV9ub19hc3BtKHZvaWQpOwogYm9vbCBwY2llX2FzcG1fc3VwcG9ydF9lbmFibGVkKHZv aWQpOwogYm9vbCBwY2llX2FzcG1fZW5hYmxlZChzdHJ1Y3QgcGNpX2RldiAqcGRldik7CiAjZWxz ZQorc3RhdGljIGlubGluZSBpbnQgcGNpX2VuYWJsZV9saW5rX3N0YXRlKHN0cnVjdCBwY2lfZGV2 ICpwZGV2LCBpbnQgc3RhdGUpIHsgcmV0dXJuIC1FT1BOT1RTVVBQOyB9CiBzdGF0aWMgaW5saW5l IGludCBwY2lfc2V0X2RlZmF1bHRfbGlua19zdGF0ZShzdHJ1Y3QgcGNpX2RldiAqcGRldiwgaW50 IHN0YXRlKQogeyByZXR1cm4gMDsgfQogc3RhdGljIGlubGluZSB2b2lkIHBjaWVfbm9fYXNwbSh2 b2lkKSB7IH0KLS0gCjIuMzAuMgoKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fCmF0aDEwayBtYWlsaW5nIGxpc3QKYXRoMTBrQGxpc3RzLmluZnJhZGVhZC5v cmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9hdGgxMGsK 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 00AC7CD37B0 for ; 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18 Sep 2023 06:12:36 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10837"; a="811342150" X-IronPort-AV: E=Sophos;i="6.02,156,1688454000"; d="scan'208";a="811342150" Received: from nprotaso-mobl1.ccr.corp.intel.com (HELO ijarvine-mobl2.ger.corp.intel.com) ([10.252.49.156]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Sep 2023 06:12:30 -0700 From: =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= To: linux-pci@vger.kernel.org, Bjorn Helgaas , Lorenzo Pieralisi , Rob Herring , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , Lukas Wunner , "Rafael J . Wysocki" , Heiner Kallweit , Emmanuel Grumbach , linux-kernel@vger.kernel.org, Bjorn Helgaas Cc: ath10k@lists.infradead.org, ath11k@lists.infradead.org, ath12k@lists.infradead.org, intel-wired-lan@lists.osuosl.org, linux-arm-kernel@lists.infradead.org, linux-bluetooth@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-rdma@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= Subject: [PATCH v2 05/13] PCI/ASPM: Add pci_enable_link_state() Date: Mon, 18 Sep 2023 16:10:55 +0300 Message-Id: <20230918131103.24119-6-ilpo.jarvinen@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230918131103.24119-1-ilpo.jarvinen@linux.intel.com> References: <20230918131103.24119-1-ilpo.jarvinen@linux.intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230918_062018_262779_B6A082B3 X-CRM114-Status: GOOD ( 15.16 ) X-BeenThere: ath11k@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: "ath11k" Errors-To: ath11k-bounces+ath11k=archiver.kernel.org@lists.infradead.org cGNpX2Rpc2FibGVfbGlua19zdGF0ZSgpIGxhY2tzIGEgc3ltbWV0cmljIHBhaXIuIFNvbWUgZHJp dmVycyB3YW50IHRvCmRpc2FibGUgQVNQTSBkdXJpbmcgY2VydGFpbiBwaGFzZXMgb2YgdGhlaXIg b3BlcmF0aW9uIGJ1dCB0aGVuCnJlLWVuYWJsZSBpdCBsYXRlciBvbi4gSWYgcGNpX2Rpc2FibGVf bGlua19zdGF0ZSgpIGlzIG1hZGUgZm9yIHRoZQpkZXZpY2UsIHRoZXJlIGlzIGN1cnJlbnRseSBu byB3YXkgdG8gcmUtZW5hYmxlIHRoZSBzdGF0ZXMgdGhhdCB3ZXJlCmRpc2FibGVkLgoKQWRkIHBj aV9lbmFibGVfbGlua19zdGF0ZSgpIHRvIHJlbW92ZSBBU1BNIHN0YXRlcyBmcm9tIHRoZSBzdGF0 ZQpkaXNhYmxlIG1hc2suCgpTaWduZWQtb2ZmLWJ5OiBJbHBvIErDpHJ2aW5lbiA8aWxwby5qYXJ2 aW5lbkBsaW51eC5pbnRlbC5jb20+Ci0tLQogZHJpdmVycy9wY2kvcGNpZS9hc3BtLmMgfCA0MiAr KysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKwogaW5jbHVkZS9saW51eC9w Y2kuaCAgICAgfCAgMiArKwogMiBmaWxlcyBjaGFuZ2VkLCA0NCBpbnNlcnRpb25zKCspCgpkaWZm IC0tZ2l0IGEvZHJpdmVycy9wY2kvcGNpZS9hc3BtLmMgYi9kcml2ZXJzL3BjaS9wY2llL2FzcG0u YwppbmRleCA5MWRjOTVhY2E5MGYuLmY0NWQxOGQ0N2MyMCAxMDA2NDQKLS0tIGEvZHJpdmVycy9w Y2kvcGNpZS9hc3BtLmMKKysrIGIvZHJpdmVycy9wY2kvcGNpZS9hc3BtLmMKQEAgLTExMTcsNiAr MTExNyw0OCBAQCBpbnQgcGNpX2Rpc2FibGVfbGlua19zdGF0ZShzdHJ1Y3QgcGNpX2RldiAqcGRl diwgaW50IHN0YXRlKQogfQogRVhQT1JUX1NZTUJPTChwY2lfZGlzYWJsZV9saW5rX3N0YXRlKTsK IAorLyoqCisgKiBwY2lfZW5hYmxlX2xpbmtfc3RhdGUgLSBSZS1lbmFibGUgZGV2aWNlJ3MgbGlu ayBzdGF0ZQorICogQHBkZXY6IFBDSSBkZXZpY2UKKyAqIEBzdGF0ZTogQVNQTSBsaW5rIHN0YXRl cyB0byByZS1lbmFibGUKKyAqCisgKiBFbmFibGUgZGV2aWNlJ3MgbGluayBzdGF0ZSB0aGF0IHdl cmUgcHJldmlvdXNseSBkaXNhYmxlIHNvIHRoZSBsaW5rIGlzCisgKiBhbGxvd2VkIHRvIGVudGVy IHRoZSBzcGVjaWZpYyBzdGF0ZXMuIE5vdGUgdGhhdCBpZiB0aGUgQklPUyBkaWRuJ3QgZ3JhbnQK KyAqIEFTUE0gY29udHJvbCB0byB0aGUgT1MsIHRoaXMgZG9lcyBub3RoaW5nIGJlY2F1c2Ugd2Ug Y2FuJ3QgdG91Y2ggdGhlCisgKiBMTktDVEwgcmVnaXN0ZXIuCisgKgorICogUmV0dXJuOiAwIG9y IGEgbmVnYXRpdmUgZXJybm8uCisgKi8KK2ludCBwY2lfZW5hYmxlX2xpbmtfc3RhdGUoc3RydWN0 IHBjaV9kZXYgKnBkZXYsIGludCBzdGF0ZSkKK3sKKwlzdHJ1Y3QgcGNpZV9saW5rX3N0YXRlICps aW5rID0gcGNpZV9hc3BtX2dldF9saW5rKHBkZXYpOworCisJaWYgKCFsaW5rKQorCQlyZXR1cm4g LUVJTlZBTDsKKwkvKgorCSAqIEEgZHJpdmVyIHJlcXVlc3RlZCB0aGF0IEFTUE0gYmUgZW5hYmxl ZCBvbiB0aGlzIGRldmljZSwgYnV0CisJICogaWYgd2UgZG9uJ3QgaGF2ZSBwZXJtaXNzaW9uIHRv IG1hbmFnZSBBU1BNIChlLmcuLCBvbiBBQ1BJCisJICogc3lzdGVtcyB3ZSBoYXZlIHRvIG9ic2Vy dmUgdGhlIEZBRFQgQUNQSV9GQURUX05PX0FTUE0gYml0IGFuZAorCSAqIHRoZSBfT1NDIG1ldGhv ZCksIHdlIGNhbid0IGhvbm9yIHRoYXQgcmVxdWVzdC4KKwkgKi8KKwlpZiAoYXNwbV9kaXNhYmxl ZCkgeworCQlwY2lfd2FybihwZGV2LCAiY2FuJ3QgZW5hYmxlIEFTUE07IE9TIGRvZXNuJ3QgaGF2 ZSBBU1BNIGNvbnRyb2xcbiIpOworCQlyZXR1cm4gLUVQRVJNOworCX0KKworCW11dGV4X2xvY2so JmFzcG1fbG9jayk7CisJbGluay0+YXNwbV9kaXNhYmxlICY9IH5wY2lfbGlua19zdGF0ZV9tYXNr KHN0YXRlKTsKKwlwY2llX2NvbmZpZ19hc3BtX2xpbmsobGluaywgcG9saWN5X3RvX2FzcG1fc3Rh dGUobGluaykpOworCisJaWYgKHN0YXRlICYgUENJRV9MSU5LX1NUQVRFX0NMS1BNKQorCQlsaW5r LT5jbGtwbV9kaXNhYmxlID0gMDsKKwlwY2llX3NldF9jbGtwbShsaW5rLCBwb2xpY3lfdG9fY2xr cG1fc3RhdGUobGluaykpOworCW11dGV4X3VubG9jaygmYXNwbV9sb2NrKTsKKworCXJldHVybiAw OworfQorRVhQT1JUX1NZTUJPTChwY2lfZW5hYmxlX2xpbmtfc3RhdGUpOworCiAvKioKICAqIHBj aV9zZXRfZGVmYXVsdF9saW5rX3N0YXRlIC0gU2V0IHRoZSBkZWZhdWx0IGRldmljZSBsaW5rIHN0 YXRlCiAgKiBAcGRldjogUENJIGRldmljZQpkaWZmIC0tZ2l0IGEvaW5jbHVkZS9saW51eC9wY2ku aCBiL2luY2x1ZGUvbGludXgvcGNpLmgKaW5kZXggM2MyNGNhMTY0MTA0Li44NDRkMDkyMzAyNjQg MTAwNjQ0Ci0tLSBhL2luY2x1ZGUvbGludXgvcGNpLmgKKysrIGIvaW5jbHVkZS9saW51eC9wY2ku aApAQCAtMTc3NiwxMSArMTc3NiwxMyBAQCBleHRlcm4gYm9vbCBwY2llX3BvcnRzX25hdGl2ZTsK IGludCBwY2lfZGlzYWJsZV9saW5rX3N0YXRlKHN0cnVjdCBwY2lfZGV2ICpwZGV2LCBpbnQgc3Rh dGUpOwogaW50IHBjaV9kaXNhYmxlX2xpbmtfc3RhdGVfbG9ja2VkKHN0cnVjdCBwY2lfZGV2ICpw ZGV2LCBpbnQgc3RhdGUpOwogI2lmZGVmIENPTkZJR19QQ0lFQVNQTQoraW50IHBjaV9lbmFibGVf bGlua19zdGF0ZShzdHJ1Y3QgcGNpX2RldiAqcGRldiwgaW50IHN0YXRlKTsKIGludCBwY2lfc2V0 X2RlZmF1bHRfbGlua19zdGF0ZShzdHJ1Y3QgcGNpX2RldiAqcGRldiwgaW50IHN0YXRlKTsKIHZv aWQgcGNpZV9ub19hc3BtKHZvaWQpOwogYm9vbCBwY2llX2FzcG1fc3VwcG9ydF9lbmFibGVkKHZv aWQpOwogYm9vbCBwY2llX2FzcG1fZW5hYmxlZChzdHJ1Y3QgcGNpX2RldiAqcGRldik7CiAjZWxz ZQorc3RhdGljIGlubGluZSBpbnQgcGNpX2VuYWJsZV9saW5rX3N0YXRlKHN0cnVjdCBwY2lfZGV2 ICpwZGV2LCBpbnQgc3RhdGUpIHsgcmV0dXJuIC1FT1BOT1RTVVBQOyB9CiBzdGF0aWMgaW5saW5l IGludCBwY2lfc2V0X2RlZmF1bHRfbGlua19zdGF0ZShzdHJ1Y3QgcGNpX2RldiAqcGRldiwgaW50 IHN0YXRlKQogeyByZXR1cm4gMDsgfQogc3RhdGljIGlubGluZSB2b2lkIHBjaWVfbm9fYXNwbSh2 b2lkKSB7IH0KLS0gCjIuMzAuMgoKCi0tIAphdGgxMWsgbWFpbGluZyBsaXN0CmF0aDExa0BsaXN0 cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGlu Zm8vYXRoMTFrCg== 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 3A8FBC46CA1 for ; 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18 Sep 2023 06:12:36 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10837"; a="811342150" X-IronPort-AV: E=Sophos;i="6.02,156,1688454000"; d="scan'208";a="811342150" Received: from nprotaso-mobl1.ccr.corp.intel.com (HELO ijarvine-mobl2.ger.corp.intel.com) ([10.252.49.156]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Sep 2023 06:12:30 -0700 From: =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= To: linux-pci@vger.kernel.org, Bjorn Helgaas , Lorenzo Pieralisi , Rob Herring , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , Lukas Wunner , "Rafael J . Wysocki" , Heiner Kallweit , Emmanuel Grumbach , linux-kernel@vger.kernel.org, Bjorn Helgaas Cc: ath10k@lists.infradead.org, ath11k@lists.infradead.org, ath12k@lists.infradead.org, intel-wired-lan@lists.osuosl.org, linux-arm-kernel@lists.infradead.org, linux-bluetooth@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-rdma@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= Subject: [PATCH v2 05/13] PCI/ASPM: Add pci_enable_link_state() Date: Mon, 18 Sep 2023 16:10:55 +0300 Message-Id: <20230918131103.24119-6-ilpo.jarvinen@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230918131103.24119-1-ilpo.jarvinen@linux.intel.com> References: <20230918131103.24119-1-ilpo.jarvinen@linux.intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230918_062018_262779_B6A082B3 X-CRM114-Status: GOOD ( 15.16 ) X-BeenThere: ath12k@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: "ath12k" Errors-To: ath12k-bounces+ath12k=archiver.kernel.org@lists.infradead.org cGNpX2Rpc2FibGVfbGlua19zdGF0ZSgpIGxhY2tzIGEgc3ltbWV0cmljIHBhaXIuIFNvbWUgZHJp dmVycyB3YW50IHRvCmRpc2FibGUgQVNQTSBkdXJpbmcgY2VydGFpbiBwaGFzZXMgb2YgdGhlaXIg b3BlcmF0aW9uIGJ1dCB0aGVuCnJlLWVuYWJsZSBpdCBsYXRlciBvbi4gSWYgcGNpX2Rpc2FibGVf bGlua19zdGF0ZSgpIGlzIG1hZGUgZm9yIHRoZQpkZXZpY2UsIHRoZXJlIGlzIGN1cnJlbnRseSBu byB3YXkgdG8gcmUtZW5hYmxlIHRoZSBzdGF0ZXMgdGhhdCB3ZXJlCmRpc2FibGVkLgoKQWRkIHBj aV9lbmFibGVfbGlua19zdGF0ZSgpIHRvIHJlbW92ZSBBU1BNIHN0YXRlcyBmcm9tIHRoZSBzdGF0 ZQpkaXNhYmxlIG1hc2suCgpTaWduZWQtb2ZmLWJ5OiBJbHBvIErDpHJ2aW5lbiA8aWxwby5qYXJ2 aW5lbkBsaW51eC5pbnRlbC5jb20+Ci0tLQogZHJpdmVycy9wY2kvcGNpZS9hc3BtLmMgfCA0MiAr KysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKwogaW5jbHVkZS9saW51eC9w Y2kuaCAgICAgfCAgMiArKwogMiBmaWxlcyBjaGFuZ2VkLCA0NCBpbnNlcnRpb25zKCspCgpkaWZm IC0tZ2l0IGEvZHJpdmVycy9wY2kvcGNpZS9hc3BtLmMgYi9kcml2ZXJzL3BjaS9wY2llL2FzcG0u YwppbmRleCA5MWRjOTVhY2E5MGYuLmY0NWQxOGQ0N2MyMCAxMDA2NDQKLS0tIGEvZHJpdmVycy9w Y2kvcGNpZS9hc3BtLmMKKysrIGIvZHJpdmVycy9wY2kvcGNpZS9hc3BtLmMKQEAgLTExMTcsNiAr MTExNyw0OCBAQCBpbnQgcGNpX2Rpc2FibGVfbGlua19zdGF0ZShzdHJ1Y3QgcGNpX2RldiAqcGRl diwgaW50IHN0YXRlKQogfQogRVhQT1JUX1NZTUJPTChwY2lfZGlzYWJsZV9saW5rX3N0YXRlKTsK IAorLyoqCisgKiBwY2lfZW5hYmxlX2xpbmtfc3RhdGUgLSBSZS1lbmFibGUgZGV2aWNlJ3MgbGlu ayBzdGF0ZQorICogQHBkZXY6IFBDSSBkZXZpY2UKKyAqIEBzdGF0ZTogQVNQTSBsaW5rIHN0YXRl cyB0byByZS1lbmFibGUKKyAqCisgKiBFbmFibGUgZGV2aWNlJ3MgbGluayBzdGF0ZSB0aGF0IHdl cmUgcHJldmlvdXNseSBkaXNhYmxlIHNvIHRoZSBsaW5rIGlzCisgKiBhbGxvd2VkIHRvIGVudGVy IHRoZSBzcGVjaWZpYyBzdGF0ZXMuIE5vdGUgdGhhdCBpZiB0aGUgQklPUyBkaWRuJ3QgZ3JhbnQK KyAqIEFTUE0gY29udHJvbCB0byB0aGUgT1MsIHRoaXMgZG9lcyBub3RoaW5nIGJlY2F1c2Ugd2Ug Y2FuJ3QgdG91Y2ggdGhlCisgKiBMTktDVEwgcmVnaXN0ZXIuCisgKgorICogUmV0dXJuOiAwIG9y IGEgbmVnYXRpdmUgZXJybm8uCisgKi8KK2ludCBwY2lfZW5hYmxlX2xpbmtfc3RhdGUoc3RydWN0 IHBjaV9kZXYgKnBkZXYsIGludCBzdGF0ZSkKK3sKKwlzdHJ1Y3QgcGNpZV9saW5rX3N0YXRlICps aW5rID0gcGNpZV9hc3BtX2dldF9saW5rKHBkZXYpOworCisJaWYgKCFsaW5rKQorCQlyZXR1cm4g LUVJTlZBTDsKKwkvKgorCSAqIEEgZHJpdmVyIHJlcXVlc3RlZCB0aGF0IEFTUE0gYmUgZW5hYmxl ZCBvbiB0aGlzIGRldmljZSwgYnV0CisJICogaWYgd2UgZG9uJ3QgaGF2ZSBwZXJtaXNzaW9uIHRv IG1hbmFnZSBBU1BNIChlLmcuLCBvbiBBQ1BJCisJICogc3lzdGVtcyB3ZSBoYXZlIHRvIG9ic2Vy dmUgdGhlIEZBRFQgQUNQSV9GQURUX05PX0FTUE0gYml0IGFuZAorCSAqIHRoZSBfT1NDIG1ldGhv ZCksIHdlIGNhbid0IGhvbm9yIHRoYXQgcmVxdWVzdC4KKwkgKi8KKwlpZiAoYXNwbV9kaXNhYmxl ZCkgeworCQlwY2lfd2FybihwZGV2LCAiY2FuJ3QgZW5hYmxlIEFTUE07IE9TIGRvZXNuJ3QgaGF2 ZSBBU1BNIGNvbnRyb2xcbiIpOworCQlyZXR1cm4gLUVQRVJNOworCX0KKworCW11dGV4X2xvY2so JmFzcG1fbG9jayk7CisJbGluay0+YXNwbV9kaXNhYmxlICY9IH5wY2lfbGlua19zdGF0ZV9tYXNr KHN0YXRlKTsKKwlwY2llX2NvbmZpZ19hc3BtX2xpbmsobGluaywgcG9saWN5X3RvX2FzcG1fc3Rh dGUobGluaykpOworCisJaWYgKHN0YXRlICYgUENJRV9MSU5LX1NUQVRFX0NMS1BNKQorCQlsaW5r LT5jbGtwbV9kaXNhYmxlID0gMDsKKwlwY2llX3NldF9jbGtwbShsaW5rLCBwb2xpY3lfdG9fY2xr cG1fc3RhdGUobGluaykpOworCW11dGV4X3VubG9jaygmYXNwbV9sb2NrKTsKKworCXJldHVybiAw OworfQorRVhQT1JUX1NZTUJPTChwY2lfZW5hYmxlX2xpbmtfc3RhdGUpOworCiAvKioKICAqIHBj aV9zZXRfZGVmYXVsdF9saW5rX3N0YXRlIC0gU2V0IHRoZSBkZWZhdWx0IGRldmljZSBsaW5rIHN0 YXRlCiAgKiBAcGRldjogUENJIGRldmljZQpkaWZmIC0tZ2l0IGEvaW5jbHVkZS9saW51eC9wY2ku aCBiL2luY2x1ZGUvbGludXgvcGNpLmgKaW5kZXggM2MyNGNhMTY0MTA0Li44NDRkMDkyMzAyNjQg MTAwNjQ0Ci0tLSBhL2luY2x1ZGUvbGludXgvcGNpLmgKKysrIGIvaW5jbHVkZS9saW51eC9wY2ku aApAQCAtMTc3NiwxMSArMTc3NiwxMyBAQCBleHRlcm4gYm9vbCBwY2llX3BvcnRzX25hdGl2ZTsK IGludCBwY2lfZGlzYWJsZV9saW5rX3N0YXRlKHN0cnVjdCBwY2lfZGV2ICpwZGV2LCBpbnQgc3Rh dGUpOwogaW50IHBjaV9kaXNhYmxlX2xpbmtfc3RhdGVfbG9ja2VkKHN0cnVjdCBwY2lfZGV2ICpw ZGV2LCBpbnQgc3RhdGUpOwogI2lmZGVmIENPTkZJR19QQ0lFQVNQTQoraW50IHBjaV9lbmFibGVf bGlua19zdGF0ZShzdHJ1Y3QgcGNpX2RldiAqcGRldiwgaW50IHN0YXRlKTsKIGludCBwY2lfc2V0 X2RlZmF1bHRfbGlua19zdGF0ZShzdHJ1Y3QgcGNpX2RldiAqcGRldiwgaW50IHN0YXRlKTsKIHZv aWQgcGNpZV9ub19hc3BtKHZvaWQpOwogYm9vbCBwY2llX2FzcG1fc3VwcG9ydF9lbmFibGVkKHZv aWQpOwogYm9vbCBwY2llX2FzcG1fZW5hYmxlZChzdHJ1Y3QgcGNpX2RldiAqcGRldik7CiAjZWxz ZQorc3RhdGljIGlubGluZSBpbnQgcGNpX2VuYWJsZV9saW5rX3N0YXRlKHN0cnVjdCBwY2lfZGV2 ICpwZGV2LCBpbnQgc3RhdGUpIHsgcmV0dXJuIC1FT1BOT1RTVVBQOyB9CiBzdGF0aWMgaW5saW5l IGludCBwY2lfc2V0X2RlZmF1bHRfbGlua19zdGF0ZShzdHJ1Y3QgcGNpX2RldiAqcGRldiwgaW50 IHN0YXRlKQogeyByZXR1cm4gMDsgfQogc3RhdGljIGlubGluZSB2b2lkIHBjaWVfbm9fYXNwbSh2 b2lkKSB7IH0KLS0gCjIuMzAuMgoKCi0tIAphdGgxMmsgbWFpbGluZyBsaXN0CmF0aDEya0BsaXN0 cy5pbmZyYWRlYWQub3JnCmh0dHBzOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3Rp bmZvL2F0aDEyawo= 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 smtp3.osuosl.org (smtp3.osuosl.org [140.211.166.136]) (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 267B0C46CA1 for ; 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Wysocki" , Heiner Kallweit , Emmanuel Grumbach , linux-kernel@vger.kernel.org, Bjorn Helgaas Date: Mon, 18 Sep 2023 16:10:55 +0300 Message-Id: <20230918131103.24119-6-ilpo.jarvinen@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230918131103.24119-1-ilpo.jarvinen@linux.intel.com> References: <20230918131103.24119-1-ilpo.jarvinen@linux.intel.com> MIME-Version: 1.0 X-Mailman-Approved-At: Mon, 18 Sep 2023 15:18:32 +0000 X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1695043219; x=1726579219; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=uEKrgp0fS4TcV/kqj/T1ibXnz9U6nSS/hcSxBB6l/C0=; b=HssD19kj0kBQ02I1f7o8PnR+TFH7X46Qj5xkHL1OpokL+hr2fq+K6FS1 UAZKz37hGsjc+346ZGMBHM1Tp8LBavq44jFfKHKydMb9LRHoo9YUYU19H XIWDmEGuJrlJMKTPBtnwy5OQAbGHp2gRMcyg8PCdvp4XjMaZWiiOLI8IH gjTKraTfV7s579Ea/pw9wXdWqUrpk/+nW5fG1URxM68BSQVU3AYX1uVQV b9yEAXO7yqtBSLV9SCKg5yblwmnWSrxkmmPxRJkqF+Ujq68CDwxnApSQJ jfYe8LwYn9H+axw7R6Mp65XgmOsKZhOtb3f3zCQVgtZNH9dp1HLYd6Fmm w==; X-Mailman-Original-Authentication-Results: smtp1.osuosl.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=HssD19kj Subject: [Intel-wired-lan] [PATCH v2 05/13] PCI/ASPM: Add pci_enable_link_state() X-BeenThere: intel-wired-lan@osuosl.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Wired Ethernet Linux Kernel Driver Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ath12k@lists.infradead.org, netdev@vger.kernel.org, linux-wireless@vger.kernel.org, ath10k@lists.infradead.org, linux-bluetooth@vger.kernel.org, intel-wired-lan@lists.osuosl.org, =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= , linux-mediatek@lists.infradead.org, ath11k@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-rdma@vger.kernel.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: intel-wired-lan-bounces@osuosl.org Sender: "Intel-wired-lan" cGNpX2Rpc2FibGVfbGlua19zdGF0ZSgpIGxhY2tzIGEgc3ltbWV0cmljIHBhaXIuIFNvbWUgZHJp dmVycyB3YW50IHRvCmRpc2FibGUgQVNQTSBkdXJpbmcgY2VydGFpbiBwaGFzZXMgb2YgdGhlaXIg b3BlcmF0aW9uIGJ1dCB0aGVuCnJlLWVuYWJsZSBpdCBsYXRlciBvbi4gSWYgcGNpX2Rpc2FibGVf bGlua19zdGF0ZSgpIGlzIG1hZGUgZm9yIHRoZQpkZXZpY2UsIHRoZXJlIGlzIGN1cnJlbnRseSBu byB3YXkgdG8gcmUtZW5hYmxlIHRoZSBzdGF0ZXMgdGhhdCB3ZXJlCmRpc2FibGVkLgoKQWRkIHBj aV9lbmFibGVfbGlua19zdGF0ZSgpIHRvIHJlbW92ZSBBU1BNIHN0YXRlcyBmcm9tIHRoZSBzdGF0 ZQpkaXNhYmxlIG1hc2suCgpTaWduZWQtb2ZmLWJ5OiBJbHBvIErDpHJ2aW5lbiA8aWxwby5qYXJ2 aW5lbkBsaW51eC5pbnRlbC5jb20+Ci0tLQogZHJpdmVycy9wY2kvcGNpZS9hc3BtLmMgfCA0MiAr KysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKwogaW5jbHVkZS9saW51eC9w Y2kuaCAgICAgfCAgMiArKwogMiBmaWxlcyBjaGFuZ2VkLCA0NCBpbnNlcnRpb25zKCspCgpkaWZm IC0tZ2l0IGEvZHJpdmVycy9wY2kvcGNpZS9hc3BtLmMgYi9kcml2ZXJzL3BjaS9wY2llL2FzcG0u 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q6Dk4OQs5qbi37fN5XaOTMg5h66s6jQeP0qCtpkaAkAWdIuseFiDPqdxX A==; X-IronPort-AV: E=McAfee;i="6600,9927,10837"; a="446113406" X-IronPort-AV: E=Sophos;i="6.02,156,1688454000"; d="scan'208";a="446113406" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Sep 2023 06:12:36 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10837"; a="811342150" X-IronPort-AV: E=Sophos;i="6.02,156,1688454000"; d="scan'208";a="811342150" Received: from nprotaso-mobl1.ccr.corp.intel.com (HELO ijarvine-mobl2.ger.corp.intel.com) ([10.252.49.156]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Sep 2023 06:12:30 -0700 From: =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= To: linux-pci@vger.kernel.org, Bjorn Helgaas , Lorenzo Pieralisi , Rob Herring , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , Lukas Wunner , "Rafael J . Wysocki" , Heiner Kallweit , Emmanuel Grumbach , linux-kernel@vger.kernel.org, Bjorn Helgaas Cc: ath10k@lists.infradead.org, ath11k@lists.infradead.org, ath12k@lists.infradead.org, intel-wired-lan@lists.osuosl.org, linux-arm-kernel@lists.infradead.org, linux-bluetooth@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-rdma@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= Subject: [PATCH v2 05/13] PCI/ASPM: Add pci_enable_link_state() Date: Mon, 18 Sep 2023 16:10:55 +0300 Message-Id: <20230918131103.24119-6-ilpo.jarvinen@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230918131103.24119-1-ilpo.jarvinen@linux.intel.com> References: <20230918131103.24119-1-ilpo.jarvinen@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org pci_disable_link_state() lacks a symmetric pair. Some drivers want to disable ASPM during certain phases of their operation but then re-enable it later on. If pci_disable_link_state() is made for the device, there is currently no way to re-enable the states that were disabled. Add pci_enable_link_state() to remove ASPM states from the state disable mask. Signed-off-by: Ilpo Järvinen --- drivers/pci/pcie/aspm.c | 42 +++++++++++++++++++++++++++++++++++++++++ include/linux/pci.h | 2 ++ 2 files changed, 44 insertions(+) diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c index 91dc95aca90f..f45d18d47c20 100644 --- a/drivers/pci/pcie/aspm.c +++ b/drivers/pci/pcie/aspm.c @@ -1117,6 +1117,48 @@ int pci_disable_link_state(struct pci_dev *pdev, int state) } EXPORT_SYMBOL(pci_disable_link_state); +/** + * pci_enable_link_state - Re-enable device's link state + * @pdev: PCI device + * @state: ASPM link states to re-enable + * + * Enable device's link state that were previously disable so the link is + * allowed to enter the specific states. Note that if the BIOS didn't grant + * ASPM control to the OS, this does nothing because we can't touch the + * LNKCTL register. + * + * Return: 0 or a negative errno. + */ +int pci_enable_link_state(struct pci_dev *pdev, int state) +{ + struct pcie_link_state *link = pcie_aspm_get_link(pdev); + + if (!link) + return -EINVAL; + /* + * A driver requested that ASPM be enabled on this device, but + * if we don't have permission to manage ASPM (e.g., on ACPI + * systems we have to observe the FADT ACPI_FADT_NO_ASPM bit and + * the _OSC method), we can't honor that request. + */ + if (aspm_disabled) { + pci_warn(pdev, "can't enable ASPM; OS doesn't have ASPM control\n"); + return -EPERM; + } + + mutex_lock(&aspm_lock); + link->aspm_disable &= ~pci_link_state_mask(state); + pcie_config_aspm_link(link, policy_to_aspm_state(link)); + + if (state & PCIE_LINK_STATE_CLKPM) + link->clkpm_disable = 0; + pcie_set_clkpm(link, policy_to_clkpm_state(link)); + mutex_unlock(&aspm_lock); + + return 0; +} +EXPORT_SYMBOL(pci_enable_link_state); + /** * pci_set_default_link_state - Set the default device link state * @pdev: PCI device diff --git a/include/linux/pci.h b/include/linux/pci.h index 3c24ca164104..844d09230264 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1776,11 +1776,13 @@ extern bool pcie_ports_native; int pci_disable_link_state(struct pci_dev *pdev, int state); int pci_disable_link_state_locked(struct pci_dev *pdev, int state); #ifdef CONFIG_PCIEASPM +int pci_enable_link_state(struct pci_dev *pdev, int state); int pci_set_default_link_state(struct pci_dev *pdev, int state); void pcie_no_aspm(void); bool pcie_aspm_support_enabled(void); bool pcie_aspm_enabled(struct pci_dev *pdev); #else +static inline int pci_enable_link_state(struct pci_dev *pdev, int state) { return -EOPNOTSUPP; } static inline int pci_set_default_link_state(struct pci_dev *pdev, int state) { return 0; } static inline void pcie_no_aspm(void) { } -- 2.30.2 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 90E24CD37B0 for ; 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18 Sep 2023 06:12:36 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10837"; a="811342150" X-IronPort-AV: E=Sophos;i="6.02,156,1688454000"; d="scan'208";a="811342150" Received: from nprotaso-mobl1.ccr.corp.intel.com (HELO ijarvine-mobl2.ger.corp.intel.com) ([10.252.49.156]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Sep 2023 06:12:30 -0700 From: =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= To: linux-pci@vger.kernel.org, Bjorn Helgaas , Lorenzo Pieralisi , Rob Herring , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , Lukas Wunner , "Rafael J . Wysocki" , Heiner Kallweit , Emmanuel Grumbach , linux-kernel@vger.kernel.org, Bjorn Helgaas Cc: ath10k@lists.infradead.org, ath11k@lists.infradead.org, ath12k@lists.infradead.org, intel-wired-lan@lists.osuosl.org, linux-arm-kernel@lists.infradead.org, linux-bluetooth@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-rdma@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= Subject: [PATCH v2 05/13] PCI/ASPM: Add pci_enable_link_state() Date: Mon, 18 Sep 2023 16:10:55 +0300 Message-Id: <20230918131103.24119-6-ilpo.jarvinen@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230918131103.24119-1-ilpo.jarvinen@linux.intel.com> References: <20230918131103.24119-1-ilpo.jarvinen@linux.intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230918_062018_262779_B6A082B3 X-CRM114-Status: GOOD ( 15.16 ) 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; 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