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Date: Sat, 5 Dec 2020 10:39:38 +0800 From: Stanley Chu <stanley.chu@...iatek.com> To: <linux-scsi@...r.kernel.org>, <martin.petersen@...cle.com>, <avri.altman@....com>, <alim.akhtar@...sung.com>, <jejb@...ux.ibm.com> CC: <beanhuo@...ron.com>, <asutoshd@...eaurora.org>, <cang@...eaurora.org>, <matthias.bgg@...il.com>, <bvanassche@....org>, <linux-mediatek@...ts.infradead.org>, <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>, <kuohong.wang@...iatek.com>, <peter.wang@...iatek.com>, <chun-hung.wu@...iatek.com>, <andy.teng@...iatek.com>, <chaotian.jing@...iatek.com>, <cc.chou@...iatek.com>, <jiajie.hao@...iatek.com>, <alice.chao@...iatek.com>, <huadian.liu@...iatek.com>, Stanley Chu <stanley.chu@...iatek.com> Subject: [PATCH v4 8/8] scsi: ufs-mediatek: Introduce event_notify implementation Introduce event_notify implementation on MediaTek UFS platform. A vendor-specific tracepoint is added that could be used for debugging purpose. Signed-off-by: Stanley Chu <stanley.chu@...iatek.com> --- drivers/scsi/ufs/ufs-mediatek-trace.h | 37 +++++++++++++++++++++++++++ drivers/scsi/ufs/ufs-mediatek.c | 12 +++++++++ 2 files changed, 49 insertions(+) create mode 100644 drivers/scsi/ufs/ufs-mediatek-trace.h diff --git a/drivers/scsi/ufs/ufs-mediatek-trace.h b/drivers/scsi/ufs/ufs-mediatek-trace.h new file mode 100644 index 000000000000..8c47f54f3e6b --- /dev/null +++ b/drivers/scsi/ufs/ufs-mediatek-trace.h @@ -0,0 +1,37 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2020 MediaTek Inc. + */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM ufs_mtk + +#if !defined(_TRACE_EVENT_UFS_MEDIATEK_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_EVENT_UFS_MEDIATEK_H + +#include <linux/tracepoint.h> + +TRACE_EVENT(ufs_mtk_event, + TP_PROTO(unsigned int type, unsigned int data), + TP_ARGS(type, data), + + TP_STRUCT__entry( + __field(unsigned int, type) + __field(unsigned int, data) + ), + + TP_fast_assign( + __entry->type = type; + __entry->data = data; + ), + + TP_printk("ufs:event=%u data=%u", + __entry->type, __entry->data) + ); +#endif + +#undef TRACE_INCLUDE_PATH +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_PATH . +#define TRACE_INCLUDE_FILE ufs-mediatek-trace +#include <trace/define_trace.h> + diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c index 1d3c5cd4592e..3522458db3bb 100644 --- a/drivers/scsi/ufs/ufs-mediatek.c +++ b/drivers/scsi/ufs/ufs-mediatek.c @@ -24,6 +24,9 @@ #include "unipro.h" #include "ufs-mediatek.h" +#define CREATE_TRACE_POINTS +#include "ufs-mediatek-trace.h" + #define ufs_mtk_smc(cmd, val, res) \ arm_smccc_smc(MTK_SIP_UFS_CONTROL, \ cmd, val, 0, 0, 0, 0, 0, &(res)) @@ -1002,6 +1005,14 @@ static void ufs_mtk_fixup_dev_quirks(struct ufs_hba *hba) ufshcd_fixup_dev_quirks(hba, ufs_mtk_dev_fixups); } +static void ufs_mtk_event_notify(struct ufs_hba *hba, + enum ufs_event_type evt, void *data) +{ + unsigned int val = *(u32 *)data; + + trace_ufs_mtk_event(evt, val); +} + /* * struct ufs_hba_mtk_vops - UFS MTK specific variant operations * @@ -1021,6 +1032,7 @@ static const struct ufs_hba_variant_ops ufs_hba_mtk_vops = { .resume = ufs_mtk_resume, .dbg_register_dump = ufs_mtk_dbg_register_dump, .device_reset = ufs_mtk_device_reset, + .event_notify = ufs_mtk_event_notify, }; /** -- 2.18.0
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