Resend this series because of previous mail list issue for test. Sorry for inconvenience.

I have addressed Liam's comments in cover letter (00/29) and will change it in the next version patch set. I have addressed Ranjani's comments patch 05/29 and will change it in the next version patch set.

This patch set is only for review. This patch set is tested on CNL no-codec only currently.

User could check current trace level status like the following: cat /sys/kernel/debug/sof/trace_level irq >> 1 ipc >> 1 dma >> 1 ssp >> 1 wait >> 1 lock >> 1 mem >> 1 value >> 1 PIPELINE.2.SSP2.IN >> 1 SSP2.IN >> 1 BUF2.0 >> 1 PCM0C >> 0 PIPELINE.1.SSP2.OUT >> 1 SSP2.OUT >> 1 BUF1.0 >> 1 PCM0P >> 1

It includes trace levels of global trace types and loaded widgets.

When level = 0, only error trace will be enabled. When level = 1, error and normal trace will be enabled. When level = 2, all trace including verbose trace will be enabled.

Set trace level like the following: echo PCM0C 0 > /sys/kernel/debug/sof/trace_level will disable the trace of capture host component of fw pipeline.

In the future, more module information will bind with trace.

Yan Wang (29): Define IPC message type and data structure for trace level. Add utility functions and variable for DMA trace level control. Add trace level variable and set function for SOF modules. Add trace level IPC message processing logic. Change trace macro definition and API for trace level checking. Change macro definition and trace calling for dma-trace.c Change macro definition and trace calling for dma-copy.c Change macro definition and trace calling for alloc.c Change macro definition and trace calling for agent.c Change macro definition and trace calling for schdule module. Change macro definition and trace calling for wait.h Change macro definition and trace calling for SSP. Change macro definition and trace calling for dw-dma.c Change macro definition and trace calling for hda-dma.c Change macro definition and trace calling for interrupt.h Change macro definition and trace calling for comp_dev. Change macro definition and trace calling for comp_buffer. Change macro definition and trace calling for pipeline. Change macro definition and trace calling for dai. Change macro definition and trace calling for volume. Change macro definition and trace calling for switch. Change macro definition and trace calling for tone. Change macro definition and trace calling for mixer. Change macro definition and trace calling for host. Change macro definition and trace calling for mux. Change macro definition and trace calling for eq_fir. Change macro definition and trace calling for eq_iir. Change macro definition and trace calling for src. Change macro definition and trace calling for IPC.

src/audio/buffer.c | 13 +-- src/audio/component.c | 31 +++--- src/audio/dai.c | 80 +++++++++------- src/audio/eq_fir.c | 63 ++++++------ src/audio/eq_iir.c | 63 ++++++------ src/audio/host.c | 73 +++++++------- src/audio/mixer.c | 39 +++++--- src/audio/mux.c | 17 +++- src/audio/pipeline.c | 191 +++++++++++++++++++----------------- src/audio/pipeline_static.c | 2 +- src/audio/src.c | 97 ++++++++++--------- src/audio/src.h | 5 +- src/audio/switch.c | 17 +++- src/audio/tone.c | 79 ++++++++------- src/audio/volume.c | 121 ++++++++++++----------- src/drivers/apl-ssp.c | 29 +++--- src/drivers/byt-ssp.c | 7 +- src/drivers/dw-dma.c | 25 +++-- src/drivers/hda-dma.c | 44 +++++---- src/include/sof/audio/buffer.h | 41 +++++--- src/include/sof/audio/component.h | 34 ++++--- src/include/sof/audio/pipeline.h | 18 +++- src/include/sof/dma-trace.h | 7 ++ src/include/sof/interrupt.h | 12 ++- src/include/sof/ipc.h | 18 +++- src/include/sof/schedule.h | 10 ++ src/include/sof/ssp.h | 14 ++- src/include/sof/trace.h | 197 +++++++++++++++++++++++++++++--------- src/include/sof/wait.h | 21 +++- src/include/uapi/ipc.h | 25 +++++ src/ipc/dma-copy.c | 13 ++- src/ipc/handler.c | 54 ++++++++--- src/ipc/ipc.c | 50 ++++++++-- src/ipc/pmc-ipc.c | 2 +- src/lib/agent.c | 12 ++- src/lib/alloc.c | 18 +++- src/lib/dma-trace.c | 83 +++++++++++++++- src/lib/schedule.c | 20 ++-- src/lib/trace.c | 101 +++++++++++++++++++ 39 files changed, 1175 insertions(+), 571 deletions(-)