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authorAlex Deucher <alexander.deucher@amd.com>2023-07-28 11:38:02 -0400
committerAlex Deucher <alexander.deucher@amd.com>2023-08-11 14:47:14 -0400
commit2b4adeb34f992e6347cc0dcb084ad3881dc31e4e (patch)
tree60e90866068a83724dd32035a3f66c78c91534a9 /drivers/gpu/drm/amd
parent99c150199659f86bc9135a2d283d859bbcb7ed93 (diff)
drm/amdkfd: disable IOMMUv2 support for Raven
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. 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>
Diffstat (limited to 'drivers/gpu/drm/amd')
-rw-r--r--drivers/gpu/drm/amd/amdkfd/kfd_device.c7
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
index 566c1e58cecf..b023fff8f97c 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c
@@ -194,11 +194,6 @@ static void kfd_device_info_init(struct kfd_dev *kfd,
kfd_device_info_set_event_interrupt_class(kfd);
- /* Raven */
- if (gc_version == IP_VERSION(9, 1, 0) ||
- gc_version == IP_VERSION(9, 2, 2))
- kfd->device_info.needs_iommu_device = true;
-
if (gc_version < IP_VERSION(11, 0, 0)) {
/* Navi2x+, Navi1x+ */
if (gc_version == IP_VERSION(10, 3, 6))
@@ -292,7 +287,6 @@ struct kfd_dev *kgd2kfd_probe(struct amdgpu_device *adev, bool vf)
gfx_target_version = 90000;
f2g = &gfx_v9_kfd2kgd;
break;
-#ifdef KFD_SUPPORT_IOMMU_V2
/* Raven */
case IP_VERSION(9, 1, 0):
case IP_VERSION(9, 2, 2):
@@ -300,7 +294,6 @@ struct kfd_dev *kgd2kfd_probe(struct amdgpu_device *adev, bool vf)
if (!vf)
f2g = &gfx_v9_kfd2kgd;
break;
-#endif
/* Vega12 */
case IP_VERSION(9, 2, 1):
gfx_target_version = 90004;