From patchwork Wed Jun 3 13:33:51 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Govind Singh X-Patchwork-Id: 11585699 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 360D0913 for ; Wed, 3 Jun 2020 13:34:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1EDB1207D5 for ; Wed, 3 Jun 2020 13:34:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="qbRaPwA6" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725992AbgFCNea (ORCPT ); Wed, 3 Jun 2020 09:34:30 -0400 Received: from mail27.static.mailgun.info ([104.130.122.27]:28215 "EHLO mail27.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725836AbgFCNe3 (ORCPT ); Wed, 3 Jun 2020 09:34:29 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1591191269; h=Message-Id: Date: Subject: Cc: To: From: Sender; bh=7x/UvRiWgJpAX06BFIJz9rHjUfD/PoIrfzp1KJclTHM=; b=qbRaPwA6pf3rg8DXM1Wy8awXbZ4qHTYuZ9GM6tyXSKwsv/1o390V9tuHm+C6lpf/q3xU3rO4 zVD4CIMt+eYfzatIj7x6FPeOA+I69L5pf2D0qhriw+0+ZsFCIlGX8XZC1oaF2pZSl9kB3Zdx Dp+0YzptdykQS7uIop65QfuOrS4= X-Mailgun-Sending-Ip: 104.130.122.27 X-Mailgun-Sid: WyI3YTAwOSIsICJsaW51eC13aXJlbGVzc0B2Z2VyLmtlcm5lbC5vcmciLCAiYmU5ZTRhIl0= Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n10.prod.us-west-2.postgun.com with SMTP id 5ed7a6dc9077f356cbeec216 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Wed, 03 Jun 2020 13:34:20 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 5D3D9C43391; Wed, 3 Jun 2020 13:34:19 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-caf-mail-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=2.0 tests=ALL_TRUSTED,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.0 Received: from dundi-linux.qualcomm.com (blr-c-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: govinds) by smtp.codeaurora.org (Postfix) with ESMTPSA id 596F0C43387; Wed, 3 Jun 2020 13:34:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 596F0C43387 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=none smtp.mailfrom=govinds@codeaurora.org From: Govind Singh To: ath10k@lists.infradead.org Cc: linux-wireless@vger.kernel.org, Govind Singh Subject: [PATCH] ath10k: Move msa region map/unmap to init/deinit path Date: Wed, 3 Jun 2020 19:03:51 +0530 Message-Id: <1591191231-31917-1-git-send-email-govinds@codeaurora.org> X-Mailer: git-send-email 2.7.4 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org With kernel qrtr switch from user space qrtr, fw crash is seen during reboot. During reboot modem rproc shutdown causes wlan qmi service exit and msa region gets unmapped. Since pdev is not suspended hw still accessing the msa region and this results in fw crash as msa region is unmapped. Decouple msa mapping from wlan qmi server arrive/exit to init/deinit path. Testing is pending with "0c2204a4ad71 net: qrtr: Migrate nameservice to kernel from userspace", only regression sanity performed with user space qrtr on QCS404/SC7180. Fixes: 0c2204a4ad71 net: qrtr: Migrate nameservice to kernel from userspace Signed-off-by: Govind Singh --- drivers/net/wireless/ath/ath10k/qmi.c | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/qmi.c b/drivers/net/wireless/ath/ath10k/qmi.c index 5ae829b46c3d..8b1291e28ba2 100644 --- a/drivers/net/wireless/ath/ath10k/qmi.c +++ b/drivers/net/wireless/ath/ath10k/qmi.c @@ -796,22 +796,16 @@ static void ath10k_qmi_event_server_arrive(struct ath10k_qmi *qmi) */ msleep(20); - ret = ath10k_qmi_setup_msa_permissions(qmi); - if (ret) - return; - ret = ath10k_qmi_msa_ready_send_sync_msg(qmi); if (ret) - goto err_setup_msa; + return; ret = ath10k_qmi_cap_send_sync_msg(qmi); if (ret) - goto err_setup_msa; + return; return; -err_setup_msa: - ath10k_qmi_remove_msa_permission(qmi); } static int ath10k_qmi_fetch_board_file(struct ath10k_qmi *qmi) @@ -854,7 +848,6 @@ static void ath10k_qmi_event_server_exit(struct ath10k_qmi *qmi) struct ath10k *ar = qmi->ar; struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar); - ath10k_qmi_remove_msa_permission(qmi); ath10k_core_free_board_files(ar); if (!test_bit(ATH10K_SNOC_FLAG_UNREGISTERING, &ar_snoc->flags)) ath10k_snoc_fw_crashed_dump(ar); @@ -1046,6 +1039,10 @@ int ath10k_qmi_init(struct ath10k *ar, u32 msa_size) if (ret) goto err_qmi_lookup; + ret = ath10k_qmi_setup_msa_permissions(qmi); + if (ret) + goto err_qmi_lookup; + return 0; err_qmi_lookup: @@ -1064,6 +1061,7 @@ int ath10k_qmi_deinit(struct ath10k *ar) struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar); struct ath10k_qmi *qmi = ar_snoc->qmi; + ath10k_qmi_remove_msa_permission(qmi); qmi_handle_release(&qmi->qmi_hdl); cancel_work_sync(&qmi->event_work); destroy_workqueue(qmi->event_wq);