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drm/amdkfd: Add CU-masking ioctl to KFD

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CU-masking allows a KFD client to control the set of CUs used by a
user mode queue for executing compute dispatches. This can be used
for optimizing the partitioning of the GPU and minimize conflicts
between concurrent tasks.

Signed-off-by: Flora Cui <flora.cui@amd.com>
Signed-off-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Eric Huang <JinHuiEric.Huang@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>
This commit is contained in:
Felix Kuehling
2018-07-14 19:05:59 -04:00
committed by Oded Gabbay
parent a7fe68a1e8
commit 39e7f33186
9 changed files with 219 additions and 1 deletions
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1
drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c
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@@ -123,6 +123,7 @@ static bool initialize(struct kernel_queue *kq, struct kfd_dev *dev,
prop.write_ptr = (uint32_t *) kq->wptr_gpu_addr;
prop.eop_ring_buffer_address = kq->eop_gpu_addr;
prop.eop_ring_buffer_size = PAGE_SIZE;
prop.cu_mask = NULL;
if (init_queue(&kq->queue, &prop) != 0)
goto err_init_queue;