drm/amdkfd: Move process doorbell allocation into kfd device

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Move doorbell allocation for a process into kfd device and
allocate doorbell space in each PDD during process creation.
Currently, KFD manages its own doorbell space but for some
devices, amdgpu would allocate the complete doorbell
space instead of leaving a chunk of doorbell space for KFD to
manage. In a system with mix of such devices, KFD would need
to request process doorbell space based on the type of device,
either from amdgpu or from its own doorbell space.

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

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This commit is contained in:

Mukul Joshi 2020-09-18 16:45:45 -04:00 • committed by Alex Deucher

parent b7b6c38529

commit 59d7115dae

6 changed files with 64 additions and 50 deletions

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30

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

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3

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

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3

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

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40

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

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17

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

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21

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

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