Commit e91191ef authored by Karol Wachowski's avatar Karol Wachowski Committed by Jacek Lawrynowicz
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accel/ivpu: Move secondary preemption buffer allocation to DMA range 



Secondary preemption buffer is accessible by NPU's DMA and can be
allocated with addresses above 4 GB. Move secondary preemption buffer
allocation from SHAVE range which is much smaller (2GB) to DMA range.
This allows to allocate more command queues with corresponding
preemption buffers without running out of address range.

Signed-off-by: default avatarKarol Wachowski <karol.wachowski@intel.com>
Reviewed-by: default avatarJacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: default avatarJeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: default avatarJacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241017145817.121590-12-jacek.lawrynowicz@linux.intel.com
parent 83b6fa58

drivers/accel/ivpu/ivpu_job.c

+1 −1
Original line number Diff line number Diff line
@@ -46,7 +46,7 @@ static int ivpu_preemption_buffers_create(struct ivpu_device *vdev, 
		return -ENOMEM;

	}



	cmdq->secondary_preempt_buf = ivpu_bo_create(vdev, &file_priv->ctx, &vdev->hw->ranges.shave,

	cmdq->secondary_preempt_buf = ivpu_bo_create(vdev, &file_priv->ctx, &vdev->hw->ranges.dma,

						     secondary_size, DRM_IVPU_BO_WC);

	if (!cmdq->secondary_preempt_buf) {

		ivpu_err(vdev, "Failed to create secondary preemption buffer\n");