linux-kernel - [PATCH v2 0/5] Several updates for PTT driver

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Date:   Thu, 14 Sep 2023 19:22:18 +0800
From:   Yicong Yang <yangyicong@...wei.com>
To:     <suzuki.poulose@....com>, <mathieu.poirier@...aro.org>,
        <jonathan.cameron@...wei.com>, <linux-kernel@...r.kernel.org>
CC:     <alexander.shishkin@...ux.intel.com>, <helgaas@...nel.org>,
        <linux-pci@...r.kernel.org>, <prime.zeng@...ilicon.com>,
        <linuxarm@...wei.com>, <yangyicong@...ilicon.com>,
        <hejunhao3@...wei.com>
Subject: [PATCH v2 0/5] Several updates for PTT driver

From: Yicong Yang <yangyicong@...ilicon.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(-)

-- 
2.24.0