From: Oded Gabbay <ogabbay@kernel.org>
To: linux-kernel@vger.kernel.org
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Subject: [PATCH 1/4] habanalabs: Use 'dma_set_mask_and_coherent()'
Date: Tue, 12 Jan 2021 21:09:12 +0200 [thread overview]
Message-ID: <20210112190915.21164-1-ogabbay@kernel.org> (raw)
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
next reply other threads:[~2021-01-12 19:10 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-12 19:09 Oded Gabbay [this message]
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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