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| author |   Lang Yu <Lang.Yu@amd.com> | 2022-04-15 15:35:44 +0800 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2022-04-19 13:58:07 -0400 |
| commit | 36bf93216ecbe399c40c5e0486f0f0e3a4afa69e (patch) | |
| tree | 8fc9ef6081478b3ff2d24d26acb6a666b064265c | |
| parent | drm/amdkfd: move kfd_flush_tlb_after_unmap into kfd_priv.h (diff) | |
| download | wireguard-linux-36bf93216ecbe399c40c5e0486f0f0e3a4afa69e.tar.xz wireguard-linux-36bf93216ecbe399c40c5e0486f0f0e3a4afa69e.zip | |
drm/amdkfd: only allow heavy-weight TLB flush on some ASICs for SVM too
The idea is from
commit a50fe7078035 ("drm/amdkfd: Only apply heavy-weight TLB flush on Aldebaran")
and
commit f61c40c0757a ("drm/amdkfd: enable heavy-weight TLB flush on Arcturus").
At the moment, heavy-weight TLB could cause problems on ASICs except
Aldebaran and Arcturus.
A simple hipMallocManaged/hipFree program could trigger this issue.
[ 97.787657] amdgpu 0000:01:00.0: amdgpu: wait for kiq fence error: 0.
[ 106.868758] amdgpu: qcm fence wait loop timeout expired
[ 106.868966] amdgpu: The cp might be in an unrecoverable state due to an unsuccessful queues preemption
[ 106.869203] amdgpu: Failed to evict process queues
[ 106.869261] amdgpu: Failed to quiesce KFD
Signed-off-by: Lang Yu <Lang.Yu@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c index 459fa07a3bcc..5afe216cf099 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c @@ -1229,7 +1229,9 @@ svm_range_unmap_from_gpus(struct svm_range *prange, unsigned long start, if (r) break; } - kfd_flush_tlb(pdd, TLB_FLUSH_HEAVYWEIGHT); + + if (kfd_flush_tlb_after_unmap(pdd->dev)) + kfd_flush_tlb(pdd, TLB_FLUSH_HEAVYWEIGHT); } return r; |