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author | 2023-02-24 18:22:32 -0500 | |
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committer | 2023-11-17 09:29:53 -0500 | |
commit | 94e2dae0a8bfd456abfd866f1eee8342f0858012 (patch) | |
tree | d6a37d7311a1f32fcdecc4bb179f6124bec61f5d /drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | |
parent | drm/amdgpu: update mappings not managed by KFD (diff) | |
download | linux-94e2dae0a8bfd456abfd866f1eee8342f0858012.tar.gz linux-94e2dae0a8bfd456abfd866f1eee8342f0858012.tar.bz2 linux-94e2dae0a8bfd456abfd866f1eee8342f0858012.zip |
drm/amdkfd: Move TLB flushing logic into amdgpu
This will make it possible for amdgpu GEM ioctls to flush TLBs on compute
VMs.
This removes VMID-based TLB flushing and always uses PASID-based
flushing. This still works because it scans the VMID-PASID mapping
registers to find the right VMID. It's only slightly less efficient. This
is not a production use case.
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c index b8412202a1b0..6ab17330a6ed 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c @@ -710,35 +710,6 @@ bool amdgpu_amdkfd_is_kfd_vmid(struct amdgpu_device *adev, u32 vmid) return false; } -int amdgpu_amdkfd_flush_gpu_tlb_vmid(struct amdgpu_device *adev, - uint16_t vmid) -{ - if (adev->family == AMDGPU_FAMILY_AI) { - int i; - - for_each_set_bit(i, adev->vmhubs_mask, AMDGPU_MAX_VMHUBS) - amdgpu_gmc_flush_gpu_tlb(adev, vmid, i, 0); - } else { - amdgpu_gmc_flush_gpu_tlb(adev, vmid, AMDGPU_GFXHUB(0), 0); - } - - return 0; -} - -int amdgpu_amdkfd_flush_gpu_tlb_pasid(struct amdgpu_device *adev, - uint16_t pasid, - enum TLB_FLUSH_TYPE flush_type, - uint32_t inst) -{ - bool all_hub = false; - - if (adev->family == AMDGPU_FAMILY_AI || - adev->family == AMDGPU_FAMILY_RV) - all_hub = true; - - return amdgpu_gmc_flush_gpu_tlb_pasid(adev, pasid, flush_type, all_hub, inst); -} - bool amdgpu_amdkfd_have_atomics_support(struct amdgpu_device *adev) { return adev->have_atomics_support; |