[PATCH 11/11] accel/ivpu: Move secondary preemption buffer allocation to DMA range

Jacek Lawrynowicz jacek.lawrynowicz at linux.intel.com
Thu Oct 17 14:58:17 UTC 2024


From: Karol Wachowski <karol.wachowski at intel.com>

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: Karol Wachowski <karol.wachowski at intel.com>
Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz at linux.intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz at linux.intel.com>
---
 drivers/accel/ivpu/ivpu_job.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/accel/ivpu/ivpu_job.c b/drivers/accel/ivpu/ivpu_job.c
index 39ba6d3d8b0de..7149312f16e19 100644
--- a/drivers/accel/ivpu/ivpu_job.c
+++ b/drivers/accel/ivpu/ivpu_job.c
@@ -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");
-- 
2.45.1



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