On 9/23/2026 11:02 PM, Welton, Benjamin wrote:
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AMD General
For some background on my end, is this the porting over of the existing profiler work to KGD?
Hello Ben,
Yes, it is a porting from KFD because I don't have any other documents.
However I still made some improvements like separate reservation from PMC enabling operation
to avoid some corner cases.
Thanks
Lingshan
Ben
-----Original Message-----
From: Zhu, James <James.Zhu@amd.com>
Sent: Wednesday, September 23, 2026 7:02 AM
To: amd-gfx@lists.freedesktop.org; Welton, Benjamin <Benjamin.Welton@amd.com>
Subject: Re: [RFC 00/10] amdgpu: implement Performance Monitor Counter support
Hi Ben,
Please review these PMC patches for unified Kernel interface.
Thanks and Best Regards!
James Zhu
On 2026-09-22 05:34, Zhu Lingshan wrote:
This series implements PMC support for amdgpu. Including two parts:
1) PMC Enablement
2) Profiler Reservation
The user space should take the reservation, then set PMC.
This series depends on and used new helper introduced in another
series:
https://lists.freedesktop.org/archives/amd-gfx/2026-August/151692.html
Please help Review
Thanks!
Zhu Lingshan (10):
drm/amdgpu: implement PMC ioctl framework
drm/amdgpu: add device-wide PMC config
drm/amdgpu: introduce PMC ioctl handler
drm/amdgpu: implement reservation mechanism for PMC
drm/amdgpu: set device-wide PMC enablement indicator
drm/amdgpu: GFX11: set mqd->perfcount from mqd_prop
drm/amdgpu: GFX12: set mqd->perfcount from mqd_prop
drm/amdgpu: GFX12.1: set mqd->perfcount from mqd_prop
drm/amdgpu: implement device PMC handler
drm/amdgpu: set userq perf state before publish it
drivers/gpu/drm/amd/amdgpu/Makefile | 2 +-
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 8 +
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 3 +
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 4 +
drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h | 6 +
drivers/gpu/drm/amd/amdgpu/amdgpu_profiler.c | 166 +++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_profiler.h | 38 +++++
drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c | 95 ++++++++++-
drivers/gpu/drm/amd/amdgpu/amdgpu_userq.h | 2 +
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 11 ++
drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c | 11 ++
drivers/gpu/drm/amd/amdgpu/gfx_v12_1.c | 11 ++
include/uapi/drm/amdgpu_drm.h | 36 ++++
13 files changed, 390 insertions(+), 3 deletions(-)
create mode 100644 drivers/gpu/drm/amd/amdgpu/amdgpu_profiler.c
create mode 100644 drivers/gpu/drm/amd/amdgpu/amdgpu_profiler.h