drm/amdkfd: Centralize IOMMUv2 code and make it conditional

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dGPUs work without IOMMUv2. Make IOMMUv2 initialization dependent on
ASIC information. Also allow building KFD without IOMMUv2 support.
This is still useful for dGPUs and prepares for enabling KFD on
architectures that don't support AMD IOMMUv2.

v2:
* Centralize IOMMUv2 code to avoid #ifdefs in too many places

v3:
* Imply AMD_IOMMU_V2 in Kconfig

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Christian Konig <christian.koenig@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>

...

This commit is contained in:

Felix Kuehling 2017-12-08 19:22:12 -05:00 • committed by Oded Gabbay

parent 4c660c8fbb

commit 64d1c3a43a

11 changed files with 495 additions and 265 deletions

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3

drivers/gpu/drm/amd/amdkfd/Kconfig

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4

drivers/gpu/drm/amd/amdkfd/Makefile

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14

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

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127

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

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3

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

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357

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

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78

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

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14

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

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138

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

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16

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

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6

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

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