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| author |  Felix Kuehling <Felix.Kuehling@amd.com>
| 2021-02-24 23:24:53 -0500 |
|---|---|---|
| committer |  Alex Deucher <alexander.deucher@amd.com>
| 2021-04-20 21:49:39 -0400 |
| commit | b41896e3eeb5cfb9f906f5d72d9b9c735dc234d4 (patch) | |
| tree | 1ad9ae4936067c0833a56e531f2bdb0f3b2dbb09 /drivers/gpu/drm/amd/amdkfd/kfd_svm.h | |
| parent | drm/amdgpu: add param bit flag to create SVM BOs (diff) | |
| download | linux-b41896e3eeb5cfb9f906f5d72d9b9c735dc234d4.tar.gz linux-b41896e3eeb5cfb9f906f5d72d9b9c735dc234d4.tar.bz2 linux-b41896e3eeb5cfb9f906f5d72d9b9c735dc234d4.zip | |
drm/amdkfd: add svm_bo eviction mechanism support
svm_bo eviction mechanism is different from regular BOs.
Every SVM_BO created contains one eviction fence and one
worker item for eviction process.
SVM_BOs can be attached to one or more pranges.
For SVM_BO eviction mechanism, TTM will start to call
enable_signal callback for every SVM_BO until VRAM space
is available.
Here, all the ttm_evict calls are synchronous, this guarantees
that each eviction has completed and the fence has signaled before
it returns.
Signed-off-by: Alex Sierra <alex.sierra@amd.com>
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-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_svm.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_svm.h | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.h b/drivers/gpu/drm/amd/amdkfd/kfd_svm.h index 9a078d354cba..11b04a706ff9 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.h @@ -34,10 +34,14 @@ #include "kfd_priv.h" struct svm_range_bo { - struct amdgpu_bo *bo; - struct kref kref; - struct list_head range_list; /* all svm ranges shared this bo */ - spinlock_t list_lock; + struct amdgpu_bo *bo; + struct kref kref; + struct list_head range_list; /* all svm ranges shared this bo */ + spinlock_t list_lock; + struct amdgpu_amdkfd_fence *eviction_fence; + struct work_struct eviction_work; + struct svm_range_list *svms; + uint32_t evicting; }; enum svm_work_list_ops { @@ -157,6 +161,7 @@ int svm_range_split_by_granularity(struct kfd_process *p, struct mm_struct *mm, struct svm_range *prange); int svm_range_restore_pages(struct amdgpu_device *adev, unsigned int pasid, uint64_t addr); +int svm_range_schedule_evict_svm_bo(struct amdgpu_amdkfd_fence *fence); void svm_range_add_list_work(struct svm_range_list *svms, struct svm_range *prange, struct mm_struct *mm, enum svm_work_list_ops op); |