Ping? On Thu, Jul 27, 2023 at 2:11 PM Alex Deucher <alexander.deucher@xxxxxxx> wrote: > > This patch set adds support for an application to query GPU > page faults. It's useful for debugging and there are > vulkan extensions that could make use of this. Preliminary > user space code which uses this can be found here: > https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23238 > https://gitlab.freedesktop.org/mesa/drm/-/merge_requests/298 > > Note, that I made a small change to the vmhub definition to > decouple it from how the kernel tracks vmhubs so that we have > a consistent user view even if we decide to add more vmhubs > like we recently did for gfx 9.4.3. > > I've also pushed the changed to: > https://gitlab.freedesktop.org/agd5f/linux/-/commits/gpu_fault_info_ioctl > > Open question, currently we just expose the raw GPU fault status > register value for each GPU so UMDs need GPU specific knowlege to decode > it, although it's largely the same across generations. One option would be to > translate to a generic GPU independent fault status. Opinions? > > v2: > - Fix spelling typos noted by Guchun > v3: > - Add locking in IOCTL query > - Only update cache if fault status is valid > > Alex Deucher (4): > drm/amdgpu: add cached GPU fault structure to vm struct > drm/amdgpu: cache gpuvm fault information for gmc7+ > drm/amdgpu: add new INFO ioctl query for the last GPU page fault > drm/amdgpu: refine fault cache updates > > drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 3 +- > drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 20 ++++++++++ > drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 50 +++++++++++++++++++++++++ > drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 31 +++++++++++++-- > drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c | 3 ++ > drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c | 3 ++ > drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c | 3 ++ > drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c | 3 ++ > drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 11 ++++-- > include/uapi/drm/amdgpu_drm.h | 16 ++++++++ > 10 files changed, 135 insertions(+), 8 deletions(-) > > -- > 2.41.0 >
