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* [PATCH 1/4] habanalabs: Use 'dma_set_mask_and_coherent()'
@ 2021-01-12 19:09 Oded Gabbay
  2021-01-12 19:09 ` [PATCH 2/4] habanalabs/gaudi: print sync manager SEI interrupt info Oded Gabbay
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Oded Gabbay @ 2021-01-12 19:09 UTC (permalink / raw)
  To: linux-kernel; +Cc: Christophe JAILLET

From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

Axe 'hl_pci_set_dma_mask()' and replace it with an equivalent
'dma_set_mask_and_coherent()' call.

This makes the code a bit less verbose.

It also removes an erroneous comment, because 'hl_pci_set_dma_mask()'
does not try to use a fall-back value.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
---
 drivers/misc/habanalabs/common/pci/pci.c | 43 ++++--------------------
 1 file changed, 7 insertions(+), 36 deletions(-)

diff --git a/drivers/misc/habanalabs/common/pci/pci.c b/drivers/misc/habanalabs/common/pci/pci.c
index c56ec1574127..b799f9258fb0 100644
--- a/drivers/misc/habanalabs/common/pci/pci.c
+++ b/drivers/misc/habanalabs/common/pci/pci.c
@@ -307,40 +307,6 @@ int hl_pci_set_outbound_region(struct hl_device *hdev,
 	return rc;
 }
 
-/**
- * hl_pci_set_dma_mask() - Set DMA masks for the device.
- * @hdev: Pointer to hl_device structure.
- *
- * This function sets the DMA masks (regular and consistent) for a specified
- * value. If it doesn't succeed, it tries to set it to a fall-back value
- *
- * Return: 0 on success, non-zero for failure.
- */
-static int hl_pci_set_dma_mask(struct hl_device *hdev)
-{
-	struct pci_dev *pdev = hdev->pdev;
-	int rc;
-
-	/* set DMA mask */
-	rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(hdev->dma_mask));
-	if (rc) {
-		dev_err(hdev->dev,
-			"Failed to set pci dma mask to %d bits, error %d\n",
-			hdev->dma_mask, rc);
-		return rc;
-	}
-
-	rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(hdev->dma_mask));
-	if (rc) {
-		dev_err(hdev->dev,
-			"Failed to set pci consistent dma mask to %d bits, error %d\n",
-			hdev->dma_mask, rc);
-		return rc;
-	}
-
-	return 0;
-}
-
 /**
  * hl_pci_init() - PCI initialization code.
  * @hdev: Pointer to hl_device structure.
@@ -377,9 +343,14 @@ int hl_pci_init(struct hl_device *hdev)
 		goto unmap_pci_bars;
 	}
 
-	rc = hl_pci_set_dma_mask(hdev);
-	if (rc)
+	rc = dma_set_mask_and_coherent(&pdev->dev,
+					DMA_BIT_MASK(hdev->dma_mask));
+	if (rc) {
+		dev_err(hdev->dev,
+			"Failed to set dma mask to %d bits, error %d\n",
+			hdev->dma_mask, rc);
 		goto unmap_pci_bars;
+	}
 
 	return 0;
 
-- 
2.25.1


^ permalink raw reply related	[flat|nested] 4+ messages in thread
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Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-01-12 19:09 [PATCH 1/4] habanalabs: Use 'dma_set_mask_and_coherent()' Oded Gabbay
2021-01-12 19:09 ` [PATCH 2/4] habanalabs/gaudi: print sync manager SEI interrupt info Oded Gabbay
2021-01-12 19:09 ` [PATCH 3/4] habanalabs: ignore F/W BMC errors in case no BMC present Oded Gabbay
2021-01-12 19:09 ` [PATCH 4/4] habanalabs: add security violations dump to debugfs Oded Gabbay

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