diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c index 4843dcb9a5f7..2b0a830f5b29 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c @@ -125,7 +125,7 @@ static bool kq_initialize(struct kernel_queue *kq, struct kfd_node *dev, memset(kq->pq_kernel_addr, 0, queue_size); memset(kq->rptr_kernel, 0, sizeof(*kq->rptr_kernel)); - memset(kq->wptr_kernel, 0, sizeof(*kq->wptr_kernel)); + memset(kq->wptr_kernel, 0, dev->kfd->device_info.doorbell_size); prop.queue_size = queue_size; prop.is_interop = false; @@ -306,12 +306,17 @@ int kq_submit_packet(struct kernel_queue *kq) if (amdgpu_amdkfd_is_fed(kq->dev->adev)) return -EIO; + /* Make sure ring buffer is updated before wptr updated */ + mb(); + if (kq->dev->kfd->device_info.doorbell_size == 8) { *kq->wptr64_kernel = kq->pending_wptr64; + mb(); /* Make sure wptr updated before ring doorbell */ write_kernel_doorbell64(kq->queue->properties.doorbell_ptr, kq->pending_wptr64); } else { *kq->wptr_kernel = kq->pending_wptr; + mb(); /* Make sure wptr updated before ring doorbell */ write_kernel_doorbell(kq->queue->properties.doorbell_ptr, kq->pending_wptr); } |