| From: |
| Yicong Yang <yang.yicong-AT-picoheart.com> |
| To: |
| <xueshuai-AT-linux.alibaba.com>, <renyu.zj-AT-linux.alibaba.com>, <will-AT-kernel.org>, <mark.rutland-AT-arm.com>, <jic23-AT-kernel.org>, <bhelgaas-AT-google.com>, <linux-pci-AT-vger.kernel.org>, <linux-kernel-AT-vger.kernel.org> |
| Subject: |
| [PATCH v2 0/3] New vendor support and optimizations for DWC PCIe PMU |
| Date: |
| Mon, 29 Jun 2026 17:27:14 +0800 |
| Message-ID: |
| <20260629092717.74946-1-yang.yicong@picoheart.com> |
| Cc: |
| <jingoohan1-AT-gmail.com>, <mani-AT-kernel.org>, <juwenlong-AT-picoheart.com>, <geshijian-AT-picoheart.com>, <yang.yicong-AT-picoheart.com>, <douyufan-AT-picoheart.com> |
| Archive-link: |
| Article |
This patchset mainly enable the DWC PCIe PMU on our platform (Patch 1/3).
Besides do some optimization and refactor:
- Patch 2/3 extend the monitoring limit on platforms with narrowed counter width (< 64 bit)
- Patch 3/3 switch the driver to use the faux device interface
Change since v1:
- always enable hrtimer for updating narrowed counters on affected platform
- refine the commints and fix styles per Jonthan, thanks.
Link: https://lore.kernel.org/all/20260615063459.25361-1-yang.y...
Yicong Yang (2):
perf/dwc_pcie: Add support for Picoheart vendor devices
perf/dwc_pcie: Convert to faux device interface
Yufan Dou (1):
perf/dwc_pcie: Support narrowed time-based counter for long time
monitoring
drivers/perf/dwc_pcie_pmu.c | 170 ++++++++++++++++++++++++------------
include/linux/pci_ids.h | 2 +
include/linux/pcie-dwc.h | 2 +
3 files changed, 117 insertions(+), 57 deletions(-)
--
2.50.1 (Apple Git-155)
