Commit bebfd2f4 authored Apr 10, 2018 by Felix Kuehling Committed by Oded Gabbay Apr 10, 2018

drm/amdkfd: Fix kernel queue rollback_packet



kq->queue->properties.write_ptr is a GPU address which can'd be
derefenced in the kernel. Use kq->wptr_kernel instead, which is the
kernel CPU address of the same buffer.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>

parent 2a26fbfe

drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -279,7 +279,7 @@ static void submit_packet(struct kernel_queue *kq)

		static void rollback_packet(struct kernel_queue *kq)
		{
		kq->pending_wptr = *kq->queue->properties.write_ptr;
		kq->pending_wptr = *kq->wptr_kernel;
		}

		struct kernel_queue kernel_queue_init(struct kfd_dev dev,

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