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tty: synclink_gt: switch from 'pci_' to 'dma_' API

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

The patch has been generated with the coccinelle script below and has been
hand modified to replace GFP_ with a correct flag.
It has been compile tested.

When memory is allocated in 'alloc_desc()' and 'alloc_bufs()', GFP_KERNEL
can be used because it is only called from a probe function and no lock is
acquired.
The call chain is:
   init_one                    (the probe function)
      --> device_init
         --> alloc_dma_bufs
            --> alloc_desc
            --> alloc_bufs

@@
@@
-    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>
Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20200806054404.728854-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christophe JAILLET
2020-08-06 07:44:04 +02:00
committed by Greg Kroah-Hartman
parent c3647f2f30
commit 68778cab29
1 changed files with 9 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/tty/synclink_gt.c
View File

@@ -3338,8 +3338,8 @@ static int alloc_desc(struct slgt_info *info)
unsigned int pbufs;
/* allocate memory to hold descriptor lists */
info->bufs = pci_zalloc_consistent(info->pdev, DESC_LIST_SIZE,
&info->bufs_dma_addr);
info->bufs = dma_alloc_coherent(&info->pdev->dev, DESC_LIST_SIZE,
&info->bufs_dma_addr, GFP_KERNEL);
if (info->bufs == NULL)
return -ENOMEM;
@@ -3381,7 +3381,8 @@ static int alloc_desc(struct slgt_info *info)
static void free_desc(struct slgt_info *info)
{
if (info->bufs != NULL) {
pci_free_consistent(info->pdev, DESC_LIST_SIZE, info->bufs, info->bufs_dma_addr);
dma_free_coherent(&info->pdev->dev, DESC_LIST_SIZE,
info->bufs, info->bufs_dma_addr);
info->bufs = NULL;
info->rbufs = NULL;
info->tbufs = NULL;
@@ -3392,7 +3393,9 @@ static int alloc_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count)
{
int i;
for (i=0; i < count; i++) {
if ((bufs[i].buf = pci_alloc_consistent(info->pdev, DMABUFSIZE, &bufs[i].buf_dma_addr)) == NULL)
bufs[i].buf = dma_alloc_coherent(&info->pdev->dev, DMABUFSIZE,
&bufs[i].buf_dma_addr, GFP_KERNEL);
if (!bufs[i].buf)
return -ENOMEM;
bufs[i].pbuf = cpu_to_le32((unsigned int)bufs[i].buf_dma_addr);
}
@@ -3405,7 +3408,8 @@ static void free_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count)
for (i=0; i < count; i++) {
if (bufs[i].buf == NULL)
continue;
pci_free_consistent(info->pdev, DMABUFSIZE, bufs[i].buf, bufs[i].buf_dma_addr);
dma_free_coherent(&info->pdev->dev, DMABUFSIZE, bufs[i].buf,
bufs[i].buf_dma_addr);
bufs[i].buf = NULL;
}
}