diff options
| author | Stanley Chu <stanley.chu@mediatek.com> | 2020-12-05 19:59:01 +0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2020-12-07 17:51:49 -0500 |
| commit | ca1bb061d64499d8aa08b0987643928a924c30bc (patch) | |
| tree | f167b1dc0bd158f177016015adee10f85f77a418 /drivers/scsi/ufs | |
| parent | 172614a9d0e861f8ad0e3165dd1d02bc63adaa1b (diff) | |
scsi: ufs-mediatek: Introduce event_notify implementation
Introduce event_notify implementation on MediaTek UFS platform. A
vendor-specific tracepoint is added that can be used for debugging
purposes.
Link: https://lore.kernel.org/r/20201205115901.26815-5-stanley.chu@mediatek.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/ufs')
| -rw-r--r-- | drivers/scsi/ufs/ufs-mediatek-trace.h | 36 | ||||
| -rw-r--r-- | drivers/scsi/ufs/ufs-mediatek.c | 12 |
2 files changed, 48 insertions, 0 deletions
diff --git a/drivers/scsi/ufs/ufs-mediatek-trace.h b/drivers/scsi/ufs/ufs-mediatek-trace.h new file mode 100644 index 000000000000..fd6f84c1b4e2 --- /dev/null +++ b/drivers/scsi/ufs/ufs-mediatek-trace.h @@ -0,0 +1,36 @@ +/* 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, }; /** |