diff options
| author | Huang Rui <ray.huang@amd.com> | 2020-08-18 14:54:23 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-08-26 16:40:17 -0400 |
| commit | 6127896f4a272578a62d1b439e86e64721296d65 (patch) | |
| tree | 784476ea5dfda74a5d9772c0ccb9c6861b10ec6d /drivers/gpu/drm/amd/amdkfd/kfd_iommu.c | |
| parent | bfcc0c162a6ad3c8025fea0e966b2a09add80b8e (diff) | |
drm/amdkfd: implement the dGPU fallback path for apu (v6)
We still have a few iommu issues which need to address, so force raven
as "dgpu" path for the moment.
This is to add the fallback path to bypass IOMMU if IOMMU v2 is disabled
or ACPI CRAT table not correct.
v2: Use ignore_crat parameter to decide whether it will go with IOMMUv2.
v3: Align with existed thunk, don't change the way of raven, only renoir
will use "dgpu" path by default.
v4: don't update global ignore_crat in the driver, and revise fallback
function if CRAT is broken.
v5: refine acpi crat good but no iommu support case, and rename the
title.
v6: fix the issue of dGPU initialized firstly, just modify the report
value in the node_show().
Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_iommu.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_iommu.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_iommu.c b/drivers/gpu/drm/amd/amdkfd/kfd_iommu.c index 7c8786b9eb0a..5a64915abaf7 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_iommu.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_iommu.c @@ -41,7 +41,7 @@ int kfd_iommu_check_device(struct kfd_dev *kfd) struct amd_iommu_device_info iommu_info; int err; - if (!kfd->device_info->needs_iommu_device) + if (!kfd->use_iommu_v2) return -ENODEV; iommu_info.flags = 0; @@ -63,7 +63,7 @@ int kfd_iommu_device_init(struct kfd_dev *kfd) unsigned int pasid_limit; int err; - if (!kfd->device_info->needs_iommu_device) + if (!kfd->use_iommu_v2) return 0; iommu_info.flags = 0; @@ -109,7 +109,7 @@ int kfd_iommu_bind_process_to_device(struct kfd_process_device *pdd) struct kfd_process *p = pdd->process; int err; - if (!dev->device_info->needs_iommu_device || pdd->bound == PDD_BOUND) + if (!dev->use_iommu_v2 || pdd->bound == PDD_BOUND) return 0; if (unlikely(pdd->bound == PDD_BOUND_SUSPENDED)) { @@ -284,7 +284,7 @@ static void kfd_unbind_processes_from_device(struct kfd_dev *kfd) */ void kfd_iommu_suspend(struct kfd_dev *kfd) { - if (!kfd->device_info->needs_iommu_device) + if (!kfd->use_iommu_v2) return; kfd_unbind_processes_from_device(kfd); @@ -304,7 +304,7 @@ int kfd_iommu_resume(struct kfd_dev *kfd) unsigned int pasid_limit; int err; - if (!kfd->device_info->needs_iommu_device) + if (!kfd->use_iommu_v2) return 0; pasid_limit = kfd_get_pasid_limit(); |