[PATCH v2] habanalabs: Stop using iommu_present()

[Robin Murphy]

Even if an IOMMU might be present for some PCI segment in the system,
that doesn't necessarily mean it provides translation for the device
we care about. Replace iommu_present() with a more appropriate check.

Signed-off-by: Robin Murphy <robin.murphy@xxxxxxx>
---

v2: Rebase on habanalabs-next

 drivers/misc/habanalabs/common/debugfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/habanalabs/common/debugfs.c b/drivers/misc/habanalabs/common/debugfs.c
index 7c4a4d504e4c..a94f01713efd 100644
--- a/drivers/misc/habanalabs/common/debugfs.c
+++ b/drivers/misc/habanalabs/common/debugfs.c
@@ -722,7 +722,7 @@ static int hl_access_mem(struct hl_device *hdev, u64 addr, u64 *val,
 	if (found)
 		return 0;
 
-	if (!user_address || iommu_present(&pci_bus_type)) {
+	if (!user_address || device_iommu_mapped(&hdev->pdev->dev)) {
 		rc = -EINVAL;
 		goto err;
 	}
-- 
2.28.0.dirty