drm/amdkfd: Add spatial partitioning support in KFD

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This patch introduces multi-partition support in KFD.
This patch includes:
- Support for maximum 8 spatial partitions in KFD.
- Initialize one HIQ per partition.
- Management of VMID range depending on partition mode.
- Management of doorbell aperture space between all
  partitions.
- Each partition does its own queue management, interrupt
  handling, SMI event reporting.
- IOMMU, if enabled with multiple partitions, will only work
  on first partition.
- SPM is only supported on the first partition.
- Currently, there is no support for resetting individual
  partitions. All partitions will reset together.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Tested-by: Amber Lin <Amber.Lin@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Mukul Joshi 2022-05-09 16:33:38 -04:00 • committed by Alex Deucher

parent 8dc1db3172

commit 74c5b85da7

7 changed files with 208 additions and 77 deletions

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210

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

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2

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

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13

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

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8

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

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16

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

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24

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

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8

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

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