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drm/amdkfd: disable IOMMUv2 support for KV/CZ

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Use the dGPU path instead.  There were a lot of platform
issues with IOMMU in general on these chips due to windows
not enabling IOMMU at the time.  The dGPU path has been
used for a long time with newer APUs and works fine.  This
also paves the way to simplify the driver significantly.

v2: use the dGPU queue manager functions

Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Tested-by: Mike Lothian <mike@fireburn.co.uk>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2023-07-28 11:34:59 -04:00
parent 95979df25b
commit 99c1501996
2 changed files with 1 additions and 13 deletions
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6
drivers/gpu/drm/amd/amdkfd/kfd_device.c
View File

@ -233,10 +233,6 @@ static void kfd_device_info_init(struct kfd_dev *kfd,
asic_type != CHIP_TONGA)
kfd->device_info.supports_cwsr = true;
if (asic_type == CHIP_KAVERI ||
asic_type == CHIP_CARRIZO)
kfd->device_info.needs_iommu_device = true;
if (asic_type != CHIP_HAWAII && !vf)
kfd->device_info.needs_pci_atomics = true;
}
@ -249,7 +245,6 @@ struct kfd_dev *kgd2kfd_probe(struct amdgpu_device *adev, bool vf)
uint32_t gfx_target_version = 0;
switch (adev->asic_type) {
#ifdef KFD_SUPPORT_IOMMU_V2
#ifdef CONFIG_DRM_AMDGPU_CIK
case CHIP_KAVERI:
gfx_target_version = 70000;
@ -262,7 +257,6 @@ struct kfd_dev *kgd2kfd_probe(struct amdgpu_device *adev, bool vf)
if (!vf)
f2g = &gfx_v8_kfd2kgd;
break;
#endif
#ifdef CONFIG_DRM_AMDGPU_CIK
case CHIP_HAWAII:
gfx_target_version = 70001;

8
drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
View File

@ -2558,18 +2558,12 @@ struct device_queue_manager *device_queue_manager_init(struct kfd_node *dev)
}
switch (dev->adev->asic_type) {
case CHIP_CARRIZO:
device_queue_manager_init_vi(&dqm->asic_ops);
break;
case CHIP_KAVERI:
device_queue_manager_init_cik(&dqm->asic_ops);
break;
case CHIP_HAWAII:
device_queue_manager_init_cik_hawaii(&dqm->asic_ops);
break;
case CHIP_CARRIZO:
case CHIP_TONGA:
case CHIP_FIJI:
case CHIP_POLARIS10: