From: Frank Li <Frank.Li@nxp.com>
To: frank.li@nxp.com
Cc: dmaengine@vger.kernel.org, imx@lists.linux.dev, joy.zou@nxp.com,
linux-kernel@vger.kernel.org, peng.fan@nxp.com,
shenwei.wang@nxp.com, vkoul@kernel.org
Subject: [PATCH 0/2] dmaengine: fsl_edma: add trace and debugfs support
Date: Thu, 24 Aug 2023 12:25:46 -0400 [thread overview]
Message-ID: <20230824162548.2940355-1-Frank.Li@nxp.com> (raw)
=== Trace ===
echo 1 >/sys/kernel/debug/tracing/tracing_on
echo 1 >/sys/kernel/debug/tracing/events/fsl_edma/enable
Run any dma test
...
cat /sys/kernel/debug/tracing/trace
uart_testapp_11-448 [000] d..1. 69.185019: edma_fill_tcd:
==== TCD =====
saddr: 0x831ee020
soff: 0x8000
attr: 0xffff
nbytes: 0xfba40000
slast: 0x00000000
daddr: 0x8aaa4800
doff: 0x0001
citer: 0x0800
dlast: 0xfba40020
csr: 0x0052
biter: 0x0800
uart_testapp_11-448 [000] d..2. 69.185022: edma_writew: offset 0001803c: value 00000000
uart_testapp_11-448 [000] d..2. 69.185023: edma_writel: offset 00018020: value 4259001c
uart_testapp_11-448 [000] d..2. 69.185024: edma_writel: offset 00018030: value 8aaa4000
=== DebugFS ===
cat /sys/kernel/debug/dmaengine/42000000.dma-controller/42000000.dma-controller-CH00/ch_sbr
0x00208003
Frank Li (2):
dmaengine: fsl-edma: add debugfs support
dmaengine: fsl-edma: add trace event support
drivers/dma/Makefile | 7 +-
drivers/dma/fsl-edma-common.c | 2 +
drivers/dma/fsl-edma-common.h | 37 ++++++++--
drivers/dma/fsl-edma-debugfs.c | 120 +++++++++++++++++++++++++++++++++
drivers/dma/fsl-edma-main.c | 2 +
drivers/dma/fsl-edma-trace.c | 4 ++
drivers/dma/fsl-edma-trace.h | 113 +++++++++++++++++++++++++++++++
7 files changed, 279 insertions(+), 6 deletions(-)
create mode 100644 drivers/dma/fsl-edma-debugfs.c
create mode 100644 drivers/dma/fsl-edma-trace.c
create mode 100644 drivers/dma/fsl-edma-trace.h
--
2.34.1
next reply other threads:[~2023-08-24 16:26 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-24 16:25 Frank Li [this message]
2023-08-24 16:25 ` [PATCH 1/2] dmaengine: fsl-edma: add debugfs support Frank Li
2023-08-24 16:25 ` [PATCH 2/2] dmaengine: fsl-edma: add trace event support Frank Li
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