drm/amdkfd: Update logic for CU occupancy calculations

Browse source

Currently, the code uses the IH_VMID_X_LUT register to map
a queue's vmid to the corresponding PASID. This logic is racy
since CP can update the VMID-PASID mapping anytime especially
when there are more processes than number of vmids. Update the
logic to calculate CU occupancy by matching doorbell offset of
the queue with valid wave counts against the process's queues.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Mukul Joshi 2024-09-16 14:33:58 -04:00 • committed by Alex Deucher

parent e1d27f7a9c

commit 6ae9e1aba9

6 changed files with 89 additions and 65 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

98

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c

View file

5

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.h

View file

20

drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c

View file

3

drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h

View file

14

drivers/gpu/drm/amd/amdkfd/kfd_process.c

View file

10

drivers/gpu/drm/amd/include/kgd_kfd_interface.h

View file