From patchwork Mon Oct 10 04:41:10 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qiang Yu X-Patchwork-Id: 13002248 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 E2C6AC433FE for ; Mon, 10 Oct 2022 04:41:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230470AbiJJEl0 (ORCPT ); Mon, 10 Oct 2022 00:41:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56430 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230443AbiJJElZ (ORCPT ); Mon, 10 Oct 2022 00:41:25 -0400 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 99C3F19C35; Sun, 9 Oct 2022 21:41:23 -0700 (PDT) Received: from pps.filterd (m0279868.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 29A4aTT5029254; Mon, 10 Oct 2022 04:41:18 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id; s=qcppdkim1; bh=byN576BP+1YoaASgwBCSpB4lhIdxm4QzXqrB9+f/cAg=; b=CpRmrR2pqxC0qvcO1LMylIYLlzKhzlAFeCsNeYzxoYTV2Z/6fvNMXUbMeFYbq3bX+8Bp Wkt6vd4usCsQ+NarqL7XmJshLIzP2ka6p1alhpJLlo8hLGvHjV+5/f8POalZmKX1q7I8 15XI7+y7ntIIqrOeA4YOW5otKtQXZt+T6J4TLGAT9drh1EdTDBJ8uXMSugMgTZlGiVt2 yqByD12TWIxw2EOLyeImInbhlBHBu4UgI9eIfZ6BOgHPv4xjtUI4JpP4z/5wPeCPj2Ww dGdN8JFaPi+xURhlUFN35npy0JeQPV4yepAeNLg+r8YAp4zgNxj+GohohRSTbzSMi5xz VA== Received: from aptaippmta02.qualcomm.com (tpe-colo-wan-fw-bordernet.qualcomm.com [103.229.16.4]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3k31ghaxpa-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 10 Oct 2022 04:41:17 +0000 Received: from pps.filterd (APTAIPPMTA02.qualcomm.com [127.0.0.1]) by APTAIPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTP id 29A4fEDl002971; Mon, 10 Oct 2022 04:41:14 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APTAIPPMTA02.qualcomm.com (PPS) with ESMTPS id 3k3jmuugqb-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Mon, 10 Oct 2022 04:41:14 +0000 Received: from APTAIPPMTA02.qualcomm.com (APTAIPPMTA02.qualcomm.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 29A4fDCm002965; Mon, 10 Oct 2022 04:41:13 GMT Received: from cbsp-sh-gv.qualcomm.com (CBSP-SH-gv.ap.qualcomm.com [10.231.249.68]) by APTAIPPMTA02.qualcomm.com (PPS) with ESMTP id 29A4fD0D002964; Mon, 10 Oct 2022 04:41:13 +0000 Received: by cbsp-sh-gv.qualcomm.com (Postfix, from userid 4098150) id 80C3C2DAA; Mon, 10 Oct 2022 12:41:12 +0800 (CST) From: Qiang Yu To: mani@kernel.org, quic_hemantk@quicinc.com, loic.poulain@linaro.org Cc: mhi@lists.linux.dev, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, quic_cang@quicinc.com, mrana@quicinc.com, Qiang Yu Subject: [PATCH] bus: mhi: host: Add session ID to MHI controller Date: Mon, 10 Oct 2022 12:41:10 +0800 Message-Id: <1665376870-60668-1-git-send-email-quic_qianyu@quicinc.com> X-Mailer: git-send-email 2.7.4 X-QCInternal: smtphost X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: Ctdq4ZKKHK6ze6CkblyY5zW9dH0AT3OT X-Proofpoint-ORIG-GUID: Ctdq4ZKKHK6ze6CkblyY5zW9dH0AT3OT X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.895,Hydra:6.0.528,FMLib:17.11.122.1 definitions=2022-10-07_04,2022-10-07_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 impostorscore=0 malwarescore=0 adultscore=0 spamscore=0 mlxlogscore=999 priorityscore=1501 mlxscore=0 bulkscore=0 suspectscore=0 lowpriorityscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2209130000 definitions=main-2210100027 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Session ID to be used during BHI transfers to recognize a particular session are currently not being stored in the MHI controller structure. Store them to allow for tracking and other future usage. Signed-off-by: Qiang Yu --- drivers/bus/mhi/host/boot.c | 8 ++++---- include/linux/mhi.h | 1 + 2 files changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/bus/mhi/host/boot.c b/drivers/bus/mhi/host/boot.c index 26d0edd..5bed8b51 100644 --- a/drivers/bus/mhi/host/boot.c +++ b/drivers/bus/mhi/host/boot.c @@ -231,7 +231,7 @@ static int mhi_fw_load_bhi(struct mhi_controller *mhi_cntrl, dma_addr_t dma_addr, size_t size) { - u32 tx_status, val, session_id; + u32 tx_status, val; int i, ret; void __iomem *base = mhi_cntrl->bhi; rwlock_t *pm_lock = &mhi_cntrl->pm_lock; @@ -253,16 +253,16 @@ static int mhi_fw_load_bhi(struct mhi_controller *mhi_cntrl, goto invalid_pm_state; } - session_id = MHI_RANDOM_U32_NONZERO(BHI_TXDB_SEQNUM_BMSK); + mhi_cntrl->session_id = MHI_RANDOM_U32_NONZERO(BHI_TXDB_SEQNUM_BMSK); dev_dbg(dev, "Starting image download via BHI. Session ID: %u\n", - session_id); + mhi_cntrl->session_id); mhi_write_reg(mhi_cntrl, base, BHI_STATUS, 0); mhi_write_reg(mhi_cntrl, base, BHI_IMGADDR_HIGH, upper_32_bits(dma_addr)); mhi_write_reg(mhi_cntrl, base, BHI_IMGADDR_LOW, lower_32_bits(dma_addr)); mhi_write_reg(mhi_cntrl, base, BHI_IMGSIZE, size); - mhi_write_reg(mhi_cntrl, base, BHI_IMGTXDB, session_id); + mhi_write_reg(mhi_cntrl, base, BHI_IMGTXDB, mhi_cntrl->session_id); read_unlock_bh(pm_lock); /* Wait for the image download to complete */ diff --git a/include/linux/mhi.h b/include/linux/mhi.h index a5441ad..8b3c934 100644 --- a/include/linux/mhi.h +++ b/include/linux/mhi.h @@ -405,6 +405,7 @@ struct mhi_controller { u32 minor_version; u32 serial_number; u32 oem_pk_hash[MHI_MAX_OEM_PK_HASH_SEGMENTS]; + u32 session_id; struct mhi_event *mhi_event; struct mhi_cmd *mhi_cmd;