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Thu, 07 May 2026 10:33:46 -0700 (PDT) X-Received: by 2002:a05:7301:3f16:b0:2ea:e93a:ff9b with SMTP id 5a478bee46e88-2f54919160dmr3866033eec.13.1778175225596; Thu, 07 May 2026 10:33:45 -0700 (PDT) Received: from [192.168.1.6] ([49.204.109.195]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2f56f7967cfsm9440324eec.19.2026.05.07.10.33.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 07 May 2026 10:33:45 -0700 (PDT) Message-ID: <59e36f20-891d-4a58-8cc4-6822d03daa23@oss.qualcomm.com> Date: Thu, 7 May 2026 23:03:39 +0530 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1 1/2] spi: qcom-geni: trace: Add trace events for Qualcomm GENI SPI To: Mark Brown Cc: Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-spi@vger.kernel.org, MukeshKumarSavaliyamukesh.savaliya@oss.qualcomm.com, AniketRandiveaniket.randive@oss.qualcomm.com, chandana.chiluveru@oss.qualcomm.com, jyothi.seerapu@oss.qualcomm.com References: <20260506-add-tracepoints-for-qcom-geni-spi-v1-0-c957cfe712d1@oss.qualcomm.com> <20260506-add-tracepoints-for-qcom-geni-spi-v1-1-c957cfe712d1@oss.qualcomm.com> Content-Language: en-US From: Praveen Talari In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Authority-Analysis: v=2.4 cv=XsPK/1F9 c=1 sm=1 tr=0 ts=69fcccfc cx=c_pps a=Uww141gWH0fZj/3QKPojxA==:117 a=TOgzk8GLwxQW6KRttr6vHg==:17 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=rJkE3RaqiGZ5pbrm-msn:22 a=1cC0H0qRpQ7oy3NfP0gA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=PxkB5W3o20Ba91AHUih5:22 X-Proofpoint-GUID: N3gVA3z8_Vq0R_dKwgsYvpimfq7CfBLH X-Proofpoint-ORIG-GUID: N3gVA3z8_Vq0R_dKwgsYvpimfq7CfBLH X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTA3MDE3NyBTYWx0ZWRfX2nEOOdyeOxxT Ndh11OfT9n5lMJeBoO52E8UbIrqzwddpzb3rcvS+BmYF5pRDQAGhuvcf8xljl2K2PjIIW741Hxp NFyHaCS2xmlBCivo40qVHgGS5Cijh7U119ioXELdcHZncDLdjHK9jsd1DUIvYDyY44P0jey0VMN vC9N+pAN+SsCzzjKydbma537Rvuf1caTinPW1x4Cm8g0WP3W/fqwYeNUOm+IyZJ7RZIkuOKoFT/ kIdTEmAthgAaGwqeLDVcoMSUZSCSxIRN0j8tes43rRRYqRTwXaenDMDQK+90a5ZoHRYRbaT9KSi 9N5UPT3Ou9KFM8JPHceP/d0+3Ef+FAniuAT6RzCR4KKxNJ9bbqtKXry274juJtgIHaC4GyEnhhC BS9w0jYMhwQwEwftxNuCyosGldO86b8DKB58y6lbl1lOd7yyMHHBLEBmz8F4v1HGRel6G1AIYDu WnR16SKPdUgFRFhYL7w== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-07_02,2026-05-06_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 impostorscore=0 adultscore=0 suspectscore=0 phishscore=0 priorityscore=1501 malwarescore=0 bulkscore=0 spamscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2605070177 Hi Mark, On 07-05-2026 13:43, Mark Brown wrote: > On Thu, May 07, 2026 at 08:58:02AM +0530, Praveen Talari wrote: >> On 07-05-2026 06:32, Mark Brown wrote: >>> At least these feel like they really should be generic events, there >>> hopefully isn't anything driver specific about them. >> Initially implemented as a generic event; however, splitting into separate >> TX and RX events may be more appropriate. >> Which approach would you prefer? > By generic I mean this should not be driver specific at all. I hope these changes are fine. Please let me know if you have any concerns or feedback. diff --git a/drivers/spi/spi-geni-qcom.c b/drivers/spi/spi-geni-qcom.c index 4da888359cfc..9abb5f4f719b 100644 --- a/drivers/spi/spi-geni-qcom.c +++ b/drivers/spi/spi-geni-qcom.c @@ -1,6 +1,8 @@  // SPDX-License-Identifier: GPL-2.0  // Copyright (c) 2017-2018, The Linux foundation. All rights reserved. +#include +  #define CREATE_TRACE_POINTS  #include @@ -709,6 +711,7 @@ static unsigned int geni_byte_per_fifo_word(struct spi_geni_master *mas)  static bool geni_spi_handle_tx(struct spi_geni_master *mas)  { +       struct spi_controller *spi = dev_get_drvdata(mas->dev);         struct geni_se *se = &mas->se;         unsigned int max_bytes;         const u8 *tx_buf; @@ -739,7 +742,7 @@ static bool geni_spi_handle_tx(struct spi_geni_master *mas)                 iowrite32_rep(se->base + SE_GENI_TX_FIFOn, &fifo_word, 1);         }         mas->tx_rem_bytes -= max_bytes; -       trace_geni_spi_tx_data(mas->dev, tx_buf, max_bytes, mas->tx_rem_bytes); +       trace_spi_tx_data(spi->cur_msg->spi, tx_buf, max_bytes, mas->tx_rem_bytes);         if (!mas->tx_rem_bytes) {                 writel(0, se->base + SE_GENI_TX_WATERMARK_REG);                 return false; @@ -749,6 +752,7 @@ static bool geni_spi_handle_tx(struct spi_geni_master *mas)  static void geni_spi_handle_rx(struct spi_geni_master *mas)  { +       struct spi_controller *spi = dev_get_drvdata(mas->dev);         struct geni_se *se = &mas->se;         u32 rx_fifo_status;         unsigned int rx_bytes; @@ -790,7 +794,7 @@ static void geni_spi_handle_rx(struct spi_geni_master *mas)         }         mas->rx_rem_bytes -= rx_bytes; -       trace_geni_spi_rx_data(mas->dev, rx_buf, rx_bytes, mas->rx_rem_bytes); +       trace_spi_rx_data(spi->cur_msg->spi, rx_buf, rx_bytes, mas->rx_rem_bytes);  }  static int setup_se_xfer(struct spi_transfer *xfer, diff --git a/include/trace/events/spi.h b/include/trace/events/spi.h index e63d4a24d879..4907625e019d 100644 --- a/include/trace/events/spi.h +++ b/include/trace/events/spi.h @@ -233,6 +233,53 @@ DEFINE_EVENT(spi_transfer, spi_transfer_stop,  ); +DECLARE_EVENT_CLASS(spi_data, + +       TP_PROTO(struct spi_device *spi, const u8 *buf, unsigned int len, +                unsigned int rem), + +       TP_ARGS(spi, buf, len, rem), + +       TP_STRUCT__entry( +               __field(        int,            bus_num         ) +               __field(        int,            chip_select     ) +               __field(        unsigned int,   len             ) +               __field(        unsigned int,   rem             ) +               __dynamic_array(u8,     data,           len     ) +       ), + +       TP_fast_assign( +               __entry->bus_num = spi->controller->bus_num; +               __entry->chip_select = spi_get_chipselect(spi, 0); +               __entry->len = len; +               __entry->rem = rem; +               memcpy(__get_dynamic_array(data), buf, len); +       ), + +       TP_printk("spi%d.%d len=%u rem=%u data=%s", +                 __entry->bus_num, __entry->chip_select, +                 __entry->len, __entry->rem, +                 __print_hex(__get_dynamic_array(data), __entry->len)) +); + +DEFINE_EVENT(spi_data, spi_tx_data, + +       TP_PROTO(struct spi_device *spi, const u8 *buf, unsigned int len, +                unsigned int rem), + +       TP_ARGS(spi, buf, len, rem) + +); + +DEFINE_EVENT(spi_data, spi_rx_data, + +       TP_PROTO(struct spi_device *spi, const u8 *buf, unsigned int len, +                unsigned int rem), + +       TP_ARGS(spi, buf, len, rem) + +); +  #endif /* _TRACE_POWER_H */ Thanks, Praveen Talari