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author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2020-08-06 08:44:04 +0300 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-09-04 19:07:22 +0300 |
commit | 68778cab29bf27a60b67f55d6f4710d9fa906eab (patch) | |
tree | 158915937d580f6872328d8f047f75475589540f /drivers | |
parent | c3647f2f30c875830fe972141a96b75a0b8df1a6 (diff) | |
download | linux-68778cab29bf27a60b67f55d6f4710d9fa906eab.tar.xz |
tty: synclink_gt: switch from 'pci_' to 'dma_' API
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>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/tty/synclink_gt.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c index 917cc611ad25..afa4cc52e48d 100644 --- a/drivers/tty/synclink_gt.c +++ b/drivers/tty/synclink_gt.c @@ -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; } } |