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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 X-Spam-Status: No, score=-2.5 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, RCVD_IN_DNSWL_LOW,SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE, URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1766144474994599864?= X-GMAIL-MSGID: =?utf-8?q?1766144474994599864?= 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(-)