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[v2,0/5] Several updates for PTT driver

Message ID 20230914112223.27165-1-yangyicong@huawei.com (mailing list archive)
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Series Several updates for PTT driver | expand

Message

Yicong Yang Sept. 14, 2023, 11:22 a.m. UTC 
From: Yicong Yang <yangyicong@hisilicon.com>

This series contains several updates for PTT driver:
- Disable interrupt when trace stops, reverse to what we do in trace start
- Always handle the interrupt in hardirq context
- Optimize the AUX buffer handling to make consumer have more time to process
  the data
- Since we're a uncore PMU so block any task attach operation
- Add a dummy pmu::read() callback since the perf core may use

Change since v1:
- Add Jonathan's tag, thanks
Link: https://lore.kernel.org/all/20230809081825.11518-1-yangyicong@huawei.com/

Junhao He (1):
  hwtracing: hisi_ptt: Add dummy callback pmu::read()

Yicong Yang (4):
  hwtracing: hisi_ptt: Disable interrupt after trace end
  hwtracing: hisi_ptt: Handle the interrupt in hardirq context
  hwtracing: hisi_ptt: Optimize the trace data committing
  hwtracing: hisi_ptt: Don't try to attach a task

 drivers/hwtracing/ptt/hisi_ptt.c | 33 +++++++++++++++++++++-----------
 drivers/hwtracing/ptt/hisi_ptt.h |  1 +
 2 files changed, 23 insertions(+), 11 deletions(-)