From patchwork Wed May 17 12:18:12 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vijaya Krishna Nivarthi X-Patchwork-Id: 13244814 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 3D740C77B7F for ; Wed, 17 May 2023 12:18:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231215AbjEQMS0 (ORCPT ); Wed, 17 May 2023 08:18:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33144 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230446AbjEQMSZ (ORCPT ); Wed, 17 May 2023 08:18:25 -0400 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F2FB010E9; Wed, 17 May 2023 05:18:24 -0700 (PDT) Received: from pps.filterd (m0279867.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 34HC1BNn015354; Wed, 17 May 2023 12:18:21 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=2u3BfMePA2tfNmr/HMzpxolG9jJcyPkro5D6meuJ8sI=; b=TRN7O/x4T2tDVy1NGe5QAcpzvgekH6IoYlZtY2izXr79q2agSLDb+dGakEBiK/EvtqWl 4piRqiUfYVeqMKQYzLM7y3iokW00pDF02srvrL0lHOm/flcIH0r+O28pj9xiGRC84Pet pTkj+J/JuGdr+w6G29r4Eyh9QqD1yZUyTg0M8sxlYLkgOOHtlXUlyT6QDuPlwlKDyara HYW8wHc+XDMCpqUiKB93D3BHEfSss/vmGChw3ygbdT6FwrQMKBMPWyObAvxWobrMKBrA eBoh7KPgKhwDishq+s7Ut5/2WWQcAnTVCGZ1rBxZoHAE4Yb5flgkyIiIHNMuunZy4kDT jQ== Received: from apblrppmta02.qualcomm.com (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.18.19]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3qmwnr863x-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 17 May 2023 12:18:21 +0000 Received: from pps.filterd (APBLRPPMTA02.qualcomm.com [127.0.0.1]) by APBLRPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTP id 34HCIHoQ022258; Wed, 17 May 2023 12:18:17 GMT Received: from pps.reinject (localhost [127.0.0.1]) by APBLRPPMTA02.qualcomm.com (PPS) with ESMTP id 3qj3mk69qk-1; Wed, 17 May 2023 12:18:17 +0000 Received: from APBLRPPMTA02.qualcomm.com (APBLRPPMTA02.qualcomm.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 34HCIHBV022252; Wed, 17 May 2023 12:18:17 GMT Received: from hu-sgudaval-hyd.qualcomm.com (hu-vnivarth-hyd.qualcomm.com [10.213.111.166]) by APBLRPPMTA02.qualcomm.com (PPS) with ESMTP id 34HCIHdd022250; Wed, 17 May 2023 12:18:17 +0000 Received: by hu-sgudaval-hyd.qualcomm.com (Postfix, from userid 3994820) id 71B704B3C; Wed, 17 May 2023 17:48:16 +0530 (+0530) From: Vijaya Krishna Nivarthi To: agross@kernel.org, andersson@kernel.org, konrad.dybcio@linaro.org, broonie@kernel.org, quic_vnivarth@quicinc.com, dianders@chromium.org, linux-arm-msm@vger.kernel.org, linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org Cc: quic_msavaliy@quicinc.com, mka@chromium.org, swboyd@chromium.org, quic_vtanuku@quicinc.com, quic_ptalari@quicinc.com Subject: [PATCH v2 0/2] spi-geni-qcom: Add new interfaces and utilise them to do map/unmap in framework for SE DMA Date: Wed, 17 May 2023 17:48:12 +0530 Message-Id: <1684325894-30252-1-git-send-email-quic_vnivarth@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: dLNKqUw9VhoSS_gi9j1fjApY0GzrCn-k X-Proofpoint-ORIG-GUID: dLNKqUw9VhoSS_gi9j1fjApY0GzrCn-k X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-05-17_02,2023-05-17_02,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 mlxlogscore=601 clxscore=1015 malwarescore=0 priorityscore=1501 spamscore=0 phishscore=0 adultscore=0 suspectscore=0 impostorscore=0 lowpriorityscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2304280000 definitions=main-2305170100 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org A "known issue" during implementation of SE DMA for spi geni driver was that it does DMA map/unmap internally instead of in spi framework. Current patches remove this hiccup and also clean up code a bit. Testing revealed no regressions and results with 1000 iterations of reading from EC showed no loss of performance. Results ======= Before - Iteration 999, min=5.10, max=5.17, avg=5.14, ints=25129 After - Iteration 999, min=5.10, max=5.20, avg=5.15, ints=25153 Vijaya Krishna Nivarthi (2): soc: qcom: geni-se: Add interfaces geni_se_tx_init_dma() and geni_se_rx_init_dma() spi: spi-geni-qcom: Do not do DMA map/unmap inside driver, use framework instead --- v1 -> v2: - Modified interfaces arguments and accordingly calls to them - Added dma_max_len to driver drivers/soc/qcom/qcom-geni-se.c | 67 ++++++++++++++++++------- drivers/spi/spi-geni-qcom.c | 103 +++++++++++++++++++-------------------- include/linux/soc/qcom/geni-se.h | 4 ++ 3 files changed, 103 insertions(+), 71 deletions(-)