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From: Raul E Rangel <rrangel@chromium.org>
To: linux-mmc@vger.kernel.org, linux-trace-devel@vger.kernel.org
Cc: djkurtz@chromium.org, zwisler@chromium.org,
	Raul E Rangel <rrangel@chromium.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	hongjiefang <hongjiefang@asrmicro.com>,
	Ingo Molnar <mingo@redhat.com>,
	linux-kernel@vger.kernel.org,
	Kyle Roeschley <kyle.roeschley@ni.com>,
	Avri Altman <avri.altman@wdc.com>,
	Ulf Hansson <ulf.hansson@linaro.org>
Subject: [PATCH v2 2/4] mmc: core: Add trace event for SD SSR response
Date: Tue, 16 Apr 2019 12:32:55 -0600	[thread overview]
Message-ID: <20190416183257.247902-3-rrangel@chromium.org> (raw)
In-Reply-To: <20190416183257.247902-1-rrangel@chromium.org>

Example:
sd_ssr: mmc0: au: 8192, erase time: 0, erase offset: 0x0, raw: {0x0,0x3000000,0x1019000,0x10000,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0}

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
---

 drivers/mmc/core/sd.c      |  2 ++
 include/trace/events/mmc.h | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index f1772972d6a3..908c3087cdcd 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -292,6 +292,8 @@ static int mmc_read_ssr(struct mmc_card *card)
 	card->erase_arg = (card->scr.sda_specx && discard_support) ?
 			    SD_DISCARD_ARG : SD_ERASE_ARG;
 
+	trace_sd_ssr(card);
+
 	return 0;
 }
 
diff --git a/include/trace/events/mmc.h b/include/trace/events/mmc.h
index 9761d3db16db..463cf318d762 100644
--- a/include/trace/events/mmc.h
+++ b/include/trace/events/mmc.h
@@ -61,6 +61,38 @@ TRACE_EVENT(sd_scr,
 	)
 );
 
+TRACE_EVENT(sd_ssr,
+
+	TP_PROTO(struct mmc_card *card),
+
+	TP_ARGS(card),
+
+	TP_STRUCT__entry(
+		__array(u32,			raw,	16)
+		__field(unsigned int,		au)
+		__field(unsigned int,		erase_timeout)
+		__field(unsigned int,		erase_offset)
+		__string(name,			mmc_hostname(card->host))
+	),
+
+	TP_fast_assign(
+		BUILD_BUG_ON(sizeof(card->raw_ssr) != sizeof(__entry->raw));
+		memcpy(__entry->raw, card->raw_ssr, sizeof(__entry->raw));
+		__entry->au = card->ssr.au;
+		__entry->erase_timeout = card->ssr.erase_timeout;
+		__entry->erase_offset = card->ssr.erase_offset;
+		__assign_str(name, mmc_hostname(card->host));
+	),
+
+	TP_printk("%s: au: %d, erase time: %d, erase offset: %#x, raw: %s",
+		  __get_str(name),
+		  __entry->au,
+		  __entry->erase_timeout,
+		  __entry->erase_offset,
+		  __print_array(__entry->raw, 16, sizeof(u32))
+	)
+);
+
 TRACE_EVENT(mmc_request_start,
 
 	TP_PROTO(struct mmc_host *host, struct mmc_request *mrq),
-- 
2.21.0.392.gf8f6787159e-goog


  parent reply	other threads:[~2019-04-16 18:33 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-16 18:32 [PATCH v2 0/4] Add trace events for SD registers Raul E Rangel
2019-04-16 18:32 ` [PATCH v2 1/4] mmc: core: Add trace event for SD SCR response Raul E Rangel
2019-04-16 18:32 ` Raul E Rangel [this message]
2019-04-16 18:32 ` [PATCH v2 3/4] mmc: core: Add trace event for SD OCR response Raul E Rangel
2019-04-16 18:32 ` [PATCH v2 4/4] mmc: core: Add trace event for CSD response Raul E Rangel
2019-04-23  6:29 ` [PATCH v2 0/4] Add trace events for SD registers Ulf Hansson
2019-04-24 15:31   ` Raul Rangel
2019-04-29  9:57     ` Ulf Hansson

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