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* [PATCH] NTB: switch from 'pci_' to 'dma_' API
@ 2021-08-22 14:04 Christophe JAILLET
  2021-09-05 11:11 ` Serge Semin
  0 siblings, 1 reply; 2+ messages in thread
From: Christophe JAILLET @ 2021-08-22 14:04 UTC (permalink / raw)
  To: sanju.mehta, Shyam-sundar.S-k, jdmason, dave.jiang, allenbh,
	fancer.lancer
  Cc: linux-ntb, linux-kernel, kernel-janitors, Christophe JAILLET

The wrappers in include/linux/pci-dma-compat.h should go away.

The patch has been generated with the coccinelle script below.

It has been compile tested.


@@
@@
-    PCI_DMA_BIDIRECTIONAL
+    DMA_BIDIRECTIONAL

@@
@@
-    PCI_DMA_TODEVICE
+    DMA_TO_DEVICE

@@
@@
-    PCI_DMA_FROMDEVICE
+    DMA_FROM_DEVICE

@@
@@
-    PCI_DMA_NONE
+    DMA_NONE

@@
expression e1, e2, e3;
@@
-    pci_alloc_consistent(e1, e2, e3)
+    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)

@@
expression e1, e2, e3;
@@
-    pci_zalloc_consistent(e1, e2, e3)
+    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)

@@
expression e1, e2, e3, e4;
@@
-    pci_free_consistent(e1, e2, e3, e4)
+    dma_free_coherent(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_map_single(e1, e2, e3, e4)
+    dma_map_single(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_single(e1, e2, e3, e4)
+    dma_unmap_single(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4, e5;
@@
-    pci_map_page(e1, e2, e3, e4, e5)
+    dma_map_page(&e1->dev, e2, e3, e4, e5)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_page(e1, e2, e3, e4)
+    dma_unmap_page(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_map_sg(e1, e2, e3, e4)
+    dma_map_sg(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_sg(e1, e2, e3, e4)
+    dma_unmap_sg(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_single_for_cpu(e1, e2, e3, e4)
+    dma_sync_single_for_cpu(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_single_for_device(e1, e2, e3, e4)
+    dma_sync_single_for_device(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_sg_for_cpu(e1, e2, e3, e4)
+    dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_sg_for_device(e1, e2, e3, e4)
+    dma_sync_sg_for_device(&e1->dev, e2, e3, e4)

@@
expression e1, e2;
@@
-    pci_dma_mapping_error(e1, e2)
+    dma_mapping_error(&e1->dev, e2)

@@
expression e1, e2;
@@
-    pci_set_dma_mask(e1, e2)
+    dma_set_mask(&e1->dev, e2)

@@
expression e1, e2;
@@
-    pci_set_consistent_dma_mask(e1, e2)
+    dma_set_coherent_mask(&e1->dev, e2)

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
If needed, see post from Christoph Hellwig on the kernel-janitors ML:
   https://marc.info/?l=kernel-janitors&m=158745678307186&w=4

This patch is mostly mechanical and compile tested. I hope it is ok to
update the "drivers/ntb/hw/" directory all at once.
---
 drivers/ntb/hw/amd/ntb_hw_amd.c    | 12 ++----------
 drivers/ntb/hw/idt/ntb_hw_idt.c    | 15 ++-------------
 drivers/ntb/hw/intel/ntb_hw_gen1.c | 12 ++----------
 3 files changed, 6 insertions(+), 33 deletions(-)

diff --git a/drivers/ntb/hw/amd/ntb_hw_amd.c b/drivers/ntb/hw/amd/ntb_hw_amd.c
index 71428d8cbcfc..87847c380051 100644
--- a/drivers/ntb/hw/amd/ntb_hw_amd.c
+++ b/drivers/ntb/hw/amd/ntb_hw_amd.c
@@ -1176,22 +1176,14 @@ static int amd_ntb_init_pci(struct amd_ntb_dev *ndev,
 
 	pci_set_master(pdev);
 
-	rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
+	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
 	if (rc) {
-		rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+		rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 		if (rc)
 			goto err_dma_mask;
 		dev_warn(&pdev->dev, "Cannot DMA highmem\n");
 	}
 
-	rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
-	if (rc) {
-		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
-		if (rc)
-			goto err_dma_mask;
-		dev_warn(&pdev->dev, "Cannot DMA consistent highmem\n");
-	}
-
 	ndev->self_mmio = pci_iomap(pdev, 0, 0);
 	if (!ndev->self_mmio) {
 		rc = -EIO;
diff --git a/drivers/ntb/hw/idt/ntb_hw_idt.c b/drivers/ntb/hw/idt/ntb_hw_idt.c
index e7a4c2aa8baa..733557231ed0 100644
--- a/drivers/ntb/hw/idt/ntb_hw_idt.c
+++ b/drivers/ntb/hw/idt/ntb_hw_idt.c
@@ -2640,26 +2640,15 @@ static int idt_init_pci(struct idt_ntb_dev *ndev)
 	int ret;
 
 	/* Initialize the bit mask of PCI/NTB DMA */
-	ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
+	ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
 	if (ret != 0) {
-		ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+		ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 		if (ret != 0) {
 			dev_err(&pdev->dev, "Failed to set DMA bit mask\n");
 			return ret;
 		}
 		dev_warn(&pdev->dev, "Cannot set DMA highmem bit mask\n");
 	}
-	ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
-	if (ret != 0) {
-		ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
-		if (ret != 0) {
-			dev_err(&pdev->dev,
-				"Failed to set consistent DMA bit mask\n");
-			return ret;
-		}
-		dev_warn(&pdev->dev,
-			"Cannot set consistent DMA highmem bit mask\n");
-	}
 
 	/*
 	 * Enable the device advanced error reporting. It's not critical to
diff --git a/drivers/ntb/hw/intel/ntb_hw_gen1.c b/drivers/ntb/hw/intel/ntb_hw_gen1.c
index 093dd20057b9..e5f14e20a9ff 100644
--- a/drivers/ntb/hw/intel/ntb_hw_gen1.c
+++ b/drivers/ntb/hw/intel/ntb_hw_gen1.c
@@ -1771,22 +1771,14 @@ static int intel_ntb_init_pci(struct intel_ntb_dev *ndev, struct pci_dev *pdev)
 
 	pci_set_master(pdev);
 
-	rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
+	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
 	if (rc) {
-		rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+		rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 		if (rc)
 			goto err_dma_mask;
 		dev_warn(&pdev->dev, "Cannot DMA highmem\n");
 	}
 
-	rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
-	if (rc) {
-		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
-		if (rc)
-			goto err_dma_mask;
-		dev_warn(&pdev->dev, "Cannot DMA consistent highmem\n");
-	}
-
 	ndev->self_mmio = pci_iomap(pdev, 0, 0);
 	if (!ndev->self_mmio) {
 		rc = -EIO;
-- 
2.30.2


^ permalink raw reply related	[flat|nested] 2+ messages in thread
* Re: [PATCH] NTB: switch from 'pci_' to 'dma_' API
  2021-08-22 14:04 [PATCH] NTB: switch from 'pci_' to 'dma_' API Christophe JAILLET
@ 2021-09-05 11:11 ` Serge Semin
  0 siblings, 0 replies; 2+ messages in thread
From: Serge Semin @ 2021-09-05 11:11 UTC (permalink / raw)
  To: Christophe JAILLET
  Cc: sanju.mehta, Shyam-sundar.S-k, jdmason, dave.jiang, allenbh,
	linux-ntb, linux-kernel, kernel-janitors

Hi Christophe

On Sun, Aug 22, 2021 at 04:04:12PM +0200, Christophe JAILLET wrote:
> The wrappers in include/linux/pci-dma-compat.h should go away.
> 
> The patch has been generated with the coccinelle script below.
> 
> It has been compile tested.

Thanks for the clean up. Explicit Ack for the IDT-part is below.

> 
> 
> @@
> @@
> -    PCI_DMA_BIDIRECTIONAL
> +    DMA_BIDIRECTIONAL
> 
> @@
> @@
> -    PCI_DMA_TODEVICE
> +    DMA_TO_DEVICE
> 
> @@
> @@
> -    PCI_DMA_FROMDEVICE
> +    DMA_FROM_DEVICE
> 
> @@
> @@
> -    PCI_DMA_NONE
> +    DMA_NONE
> 
> @@
> expression e1, e2, e3;
> @@
> -    pci_alloc_consistent(e1, e2, e3)
> +    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)
> 
> @@
> expression e1, e2, e3;
> @@
> -    pci_zalloc_consistent(e1, e2, e3)
> +    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)
> 
> @@
> expression e1, e2, e3, e4;
> @@
> -    pci_free_consistent(e1, e2, e3, e4)
> +    dma_free_coherent(&e1->dev, e2, e3, e4)
> 
> @@
> expression e1, e2, e3, e4;
> @@
> -    pci_map_single(e1, e2, e3, e4)
> +    dma_map_single(&e1->dev, e2, e3, e4)
> 
> @@
> expression e1, e2, e3, e4;
> @@
> -    pci_unmap_single(e1, e2, e3, e4)
> +    dma_unmap_single(&e1->dev, e2, e3, e4)
> 
> @@
> expression e1, e2, e3, e4, e5;
> @@
> -    pci_map_page(e1, e2, e3, e4, e5)
> +    dma_map_page(&e1->dev, e2, e3, e4, e5)
> 
> @@
> expression e1, e2, e3, e4;
> @@
> -    pci_unmap_page(e1, e2, e3, e4)
> +    dma_unmap_page(&e1->dev, e2, e3, e4)
> 
> @@
> expression e1, e2, e3, e4;
> @@
> -    pci_map_sg(e1, e2, e3, e4)
> +    dma_map_sg(&e1->dev, e2, e3, e4)
> 
> @@
> expression e1, e2, e3, e4;
> @@
> -    pci_unmap_sg(e1, e2, e3, e4)
> +    dma_unmap_sg(&e1->dev, e2, e3, e4)
> 
> @@
> expression e1, e2, e3, e4;
> @@
> -    pci_dma_sync_single_for_cpu(e1, e2, e3, e4)
> +    dma_sync_single_for_cpu(&e1->dev, e2, e3, e4)
> 
> @@
> expression e1, e2, e3, e4;
> @@
> -    pci_dma_sync_single_for_device(e1, e2, e3, e4)
> +    dma_sync_single_for_device(&e1->dev, e2, e3, e4)
> 
> @@
> expression e1, e2, e3, e4;
> @@
> -    pci_dma_sync_sg_for_cpu(e1, e2, e3, e4)
> +    dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4)
> 
> @@
> expression e1, e2, e3, e4;
> @@
> -    pci_dma_sync_sg_for_device(e1, e2, e3, e4)
> +    dma_sync_sg_for_device(&e1->dev, e2, e3, e4)
> 
> @@
> expression e1, e2;
> @@
> -    pci_dma_mapping_error(e1, e2)
> +    dma_mapping_error(&e1->dev, e2)
> 
> @@
> expression e1, e2;
> @@
> -    pci_set_dma_mask(e1, e2)
> +    dma_set_mask(&e1->dev, e2)
> 
> @@
> expression e1, e2;
> @@
> -    pci_set_consistent_dma_mask(e1, e2)
> +    dma_set_coherent_mask(&e1->dev, e2)
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> ---
> If needed, see post from Christoph Hellwig on the kernel-janitors ML:
>    https://marc.info/?l=kernel-janitors&m=158745678307186&w=4
> 
> This patch is mostly mechanical and compile tested. I hope it is ok to
> update the "drivers/ntb/hw/" directory all at once.
> ---
>  drivers/ntb/hw/amd/ntb_hw_amd.c    | 12 ++----------

>  drivers/ntb/hw/idt/ntb_hw_idt.c    | 15 ++-------------

Acked-by: Serge Semin <fancer.lancer@gmail.com>

-Sergey

>  drivers/ntb/hw/intel/ntb_hw_gen1.c | 12 ++----------
>  3 files changed, 6 insertions(+), 33 deletions(-)
> 
> diff --git a/drivers/ntb/hw/amd/ntb_hw_amd.c b/drivers/ntb/hw/amd/ntb_hw_amd.c
> index 71428d8cbcfc..87847c380051 100644
> --- a/drivers/ntb/hw/amd/ntb_hw_amd.c
> +++ b/drivers/ntb/hw/amd/ntb_hw_amd.c
> @@ -1176,22 +1176,14 @@ static int amd_ntb_init_pci(struct amd_ntb_dev *ndev,
>  
>  	pci_set_master(pdev);
>  
> -	rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
> +	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
>  	if (rc) {
> -		rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
> +		rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
>  		if (rc)
>  			goto err_dma_mask;
>  		dev_warn(&pdev->dev, "Cannot DMA highmem\n");
>  	}
>  
> -	rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
> -	if (rc) {
> -		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
> -		if (rc)
> -			goto err_dma_mask;
> -		dev_warn(&pdev->dev, "Cannot DMA consistent highmem\n");
> -	}
> -
>  	ndev->self_mmio = pci_iomap(pdev, 0, 0);
>  	if (!ndev->self_mmio) {
>  		rc = -EIO;
> diff --git a/drivers/ntb/hw/idt/ntb_hw_idt.c b/drivers/ntb/hw/idt/ntb_hw_idt.c
> index e7a4c2aa8baa..733557231ed0 100644
> --- a/drivers/ntb/hw/idt/ntb_hw_idt.c
> +++ b/drivers/ntb/hw/idt/ntb_hw_idt.c
> @@ -2640,26 +2640,15 @@ static int idt_init_pci(struct idt_ntb_dev *ndev)
>  	int ret;
>  
>  	/* Initialize the bit mask of PCI/NTB DMA */
> -	ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
> +	ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
>  	if (ret != 0) {
> -		ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
> +		ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
>  		if (ret != 0) {
>  			dev_err(&pdev->dev, "Failed to set DMA bit mask\n");
>  			return ret;
>  		}
>  		dev_warn(&pdev->dev, "Cannot set DMA highmem bit mask\n");
>  	}
> -	ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
> -	if (ret != 0) {
> -		ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
> -		if (ret != 0) {
> -			dev_err(&pdev->dev,
> -				"Failed to set consistent DMA bit mask\n");
> -			return ret;
> -		}
> -		dev_warn(&pdev->dev,
> -			"Cannot set consistent DMA highmem bit mask\n");
> -	}
>  
>  	/*
>  	 * Enable the device advanced error reporting. It's not critical to
> diff --git a/drivers/ntb/hw/intel/ntb_hw_gen1.c b/drivers/ntb/hw/intel/ntb_hw_gen1.c
> index 093dd20057b9..e5f14e20a9ff 100644
> --- a/drivers/ntb/hw/intel/ntb_hw_gen1.c
> +++ b/drivers/ntb/hw/intel/ntb_hw_gen1.c
> @@ -1771,22 +1771,14 @@ static int intel_ntb_init_pci(struct intel_ntb_dev *ndev, struct pci_dev *pdev)
>  
>  	pci_set_master(pdev);
>  
> -	rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
> +	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
>  	if (rc) {
> -		rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
> +		rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
>  		if (rc)
>  			goto err_dma_mask;
>  		dev_warn(&pdev->dev, "Cannot DMA highmem\n");
>  	}
>  
> -	rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
> -	if (rc) {
> -		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
> -		if (rc)
> -			goto err_dma_mask;
> -		dev_warn(&pdev->dev, "Cannot DMA consistent highmem\n");
> -	}
> -
>  	ndev->self_mmio = pci_iomap(pdev, 0, 0);
>  	if (!ndev->self_mmio) {
>  		rc = -EIO;
> -- 
> 2.30.2
> 

^ permalink raw reply	[flat|nested] 2+ messages in thread
end of thread, other threads:[~2021-09-05 11:11 UTC | newest]

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2021-08-22 14:04 [PATCH] NTB: switch from 'pci_' to 'dma_' API Christophe JAILLET
2021-09-05 11:11 ` Serge Semin

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