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| author |   Felix Kuehling <Felix.Kuehling@amd.com> | 2018-02-06 20:32:45 -0500 |
|---|---|---|
| committer |   Oded Gabbay <oded.gabbay@gmail.com> | 2018-02-06 20:32:45 -0500 |
| commit | 26103436da003327017af325483b6150a3b855cc (patch) | |
| tree | e7249d2b7e73e3969067680dd6496945981220f0 /drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c | |
| parent | drm/amdkfd: Add GPUVM virtual address space to PDD (diff) | |
| download | linux-dev-26103436da003327017af325483b6150a3b855cc.tar.xz linux-dev-26103436da003327017af325483b6150a3b855cc.zip | |
drm/amdkfd: Implement KFD process eviction/restore
When the TTM memory manager in KGD evicts BOs, all user mode queues
potentially accessing these BOs must be evicted temporarily. Once
user mode queues are evicted, the eviction fence is signaled,
allowing the migration of the BO to proceed.
A delayed worker is scheduled to restore all the BOs belonging to
the evicted process and restart its queues.
During suspend/resume of the GPU we also evict all processes to allow
KGD to save BOs in system memory, since VRAM will be lost.
v2:
* Account for eviction when updating of q->is_active in MQD manager
Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c index 58221c1fc917..89e4242e43e7 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c @@ -198,7 +198,8 @@ static int __update_mqd(struct mqd_manager *mm, void *mqd, q->is_active = (q->queue_size > 0 && q->queue_address != 0 && - q->queue_percent > 0); + q->queue_percent > 0 && + !q->is_evicted); return 0; } @@ -342,7 +343,8 @@ static int update_mqd_sdma(struct mqd_manager *mm, void *mqd, q->is_active = (q->queue_size > 0 && q->queue_address != 0 && - q->queue_percent > 0); + q->queue_percent > 0 && + !q->is_evicted); return 0; } |