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| author |   Alex Sierra <alex.sierra@amd.com> | 2023-05-29 16:01:37 -0500 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2023-06-09 12:32:25 -0400 |
| commit | c22b044070971e474dd0ff81a9830df93751f726 (patch) | |
| tree | ca897bf93fc474e8bbc25ae787b6fd21961afcfc | |
| parent | drm/amdgpu: Initialize xcc mask (diff) | |
| download | wireguard-linux-c22b044070971e474dd0ff81a9830df93751f726.tar.xz wireguard-linux-c22b044070971e474dd0ff81a9830df93751f726.zip | |
drm/amdkfd: flag added to handle errors from svm validate and map
If a return error is raised during validation and mapping of a
prange, this flag is set. It is a rare occurrence, but it could happen
when `amdgpu_hmm_range_get_pages_done` returns true. In such cases,
the caller should retry. However, it is important to ensure that the
prange is updated correctly during the retry.
Signed-off-by: Alex Sierra <alex.sierra@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 | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_svm.h | 1 |
2 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 ee16130ddc75..9c88d6e90c3b 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c @@ -809,7 +809,7 @@ svm_range_is_same_attrs(struct kfd_process *p, struct svm_range *prange, } } - return true; + return !prange->is_error_flag; } /** @@ -1691,6 +1691,7 @@ unlock_out: unreserve_out: svm_range_unreserve_bos(ctx); + prange->is_error_flag = !!r; if (!r) prange->validate_timestamp = ktime_get_boottime(); diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.h b/drivers/gpu/drm/amd/amdkfd/kfd_svm.h index 762679835e31..21b14510882b 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.h @@ -134,6 +134,7 @@ struct svm_range { DECLARE_BITMAP(bitmap_aip, MAX_GPU_INSTANCE); bool validated_once; bool mapped_to_gpu; + bool is_error_flag; }; static inline void svm_range_lock(struct svm_range *prange) |