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 X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 835C9C433E0 for ; Wed, 23 Dec 2020 03:03:46 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3865620705 for ; Wed, 23 Dec 2020 03:03:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3865620705 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=ath11k-bounces+ath11k=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:MIME-Version:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:References:In-Reply-To:Message-Id:Date:Subject:To: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ohWRXmX7PjciadoHn0tQMqQZtnIo0cdgMgRWN+rIwFE=; b=KXKgZOoWaKXaBeH/RGJFMpHef/ X//CfieoP13VZO6P+rG2pJJSKmluhuqM7iZ3Ys8RGsVwO6sIiGgWm3bIwwlEcF1K76mexBFgtYiV3 adyFj8ptmDVzLmZhKkd9kQCWa6spv/S+gdDxBbFyaeHHppsDuWBQNoW/reNYvFE66BQRSy7LSES9z noJ95bFsvKnDsbSrwxlH0Eby/58gmMD7Mw0ZqWq4ZhMfIXJ2oSEbCFDWf8IWjJvPdmz5cKt0FfaN4 2dIkGQtXq5bbMq/TMEZ1m0csWRAb9KK1sp52QgmLCUqrfw3DiFvrVCq3VvRijIsOb6BVTDsHIjhfi oNWS7Msw==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kruRD-0007Xp-Iy; Wed, 23 Dec 2020 03:03:43 +0000 Received: from so254-31.mailgun.net ([198.61.254.31]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kruR9-0007SK-Va for ath11k@lists.infradead.org; Wed, 23 Dec 2020 03:03:43 +0000 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1608692622; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=I1QNljUE58AFHH2SABSXPPFW7q2xOYSS3wHHUKO0u2A=; b=i9hymBajJ7anPJttWLwX3LY8Ins7uFhOhg6fb9AawzWF9kcXXsSwvyWvPNz3mO9UB7iwOj3f B64nQ65fnKl5cBAkTWa64FhSQWLBuyLj2TwuZcHX75lbvlLEJZeUyVljjZ4c8oSScX26BeYv 7DRYv7ZED62t0p0rDGzxckRy+fw= X-Mailgun-Sending-Ip: 198.61.254.31 X-Mailgun-Sid: WyJmOGQ2ZiIsICJhdGgxMWtAbGlzdHMuaW5mcmFkZWFkLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n06.prod.us-west-2.postgun.com with SMTP id 5fe2b3511d5c1fa427638e42 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Wed, 23 Dec 2020 03:02:41 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 78F54C43465; Wed, 23 Dec 2020 03:02:41 +0000 (UTC) Received: from cjhuang-Inspiron-7590.qca.qualcomm.com (unknown [180.166.53.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: cjhuang) by smtp.codeaurora.org (Postfix) with ESMTPSA id 1E9B6C43466; Wed, 23 Dec 2020 03:02:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 1E9B6C43466 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=cjhuang@codeaurora.org From: Carl Huang To: ath11k@lists.infradead.org Subject: [PATCH 6/6] ath11k: do not restore ASPM in case of single MSI vector Date: Tue, 22 Dec 2020 22:02:25 -0500 Message-Id: <20201223030225.2345-7-cjhuang@codeaurora.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201223030225.2345-1-cjhuang@codeaurora.org> References: <20201223030225.2345-1-cjhuang@codeaurora.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201222_220342_579504_A8C70E8C X-CRM114-Status: GOOD ( 13.47 ) X-BeenThere: ath11k@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-wireless@vger.kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "ath11k" Errors-To: ath11k-bounces+ath11k=archiver.kernel.org@lists.infradead.org For single MSI vector, ath11k doesn't restore ASPM as the MHI register reading in M2 causes system hung. Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1 Signed-off-by: Carl Huang --- drivers/net/wireless/ath/ath11k/pci.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath11k/pci.c b/drivers/net/wireless/ath/ath11k/pci.c index a120d7c..8c6147b 100644 --- a/drivers/net/wireless/ath/ath11k/pci.c +++ b/drivers/net/wireless/ath/ath11k/pci.c @@ -1119,7 +1119,11 @@ static int ath11k_pci_start(struct ath11k_base *ab) set_bit(ATH11K_PCI_FLAG_INIT_DONE, &ab_pci->flags); - ath11k_pci_aspm_restore(ab_pci); + /* TODO: fo now don't restore ASPM in case of single MSI + * vector as MHI register reading in M2 causes system hang. + */ + if (ab_pci->vectors_32_capability) + ath11k_pci_aspm_restore(ab_pci); ab->ce_irq_enabled_flag = true; ath11k_pci_ce_irqs_enable(ab); -- 2.7.4 -- ath11k mailing list ath11k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath11k