diff mbox series

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

Message ID 20241017145817.121590-12-jacek.lawrynowicz@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series accel/ivpu: Changes for 6.13-rc5 | expand

Commit Message

Jacek Lawrynowicz Oct. 17, 2024, 2:58 p.m. UTC 
From: Karol Wachowski <karol.wachowski@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@intel.com>
Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
---
 drivers/accel/ivpu/ivpu_job.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Jeffrey Hugo Oct. 18, 2024, 10:11 p.m. UTC | #1 
On 10/17/2024 8:58 AM, Jacek Lawrynowicz wrote:
> From: Karol Wachowski <karol.wachowski@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@intel.com>
> Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
> Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>

Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
diff mbox series

Patch

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");