On 27/Nov/2020 21:34, 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 and has been
> hand modified to replace GFP_ with a correct flag.
> It has been compile tested.
> 
> When memory is allocated in 'snd_solo_pcm_open()' (solo6x10-g723.c)
> GFP_KERNEL can be used because this flag is already used jew a few lines
> above.
> 
> When memory is allocated in 'solo_enc_alloc()' (solo6x10-v4l2-enc.c)
> GFP_KERNEL can be used because this flag is already used jew a few lines
> above.
> 
> When memory is allocated in 'solo_enc_v4l2_init()' (solo6x10-v4l2-enc.c)
> GFP_KERNEL can be used because calls 'solo_enc_alloc()' which already uses
> this flag.
> 
> @@
> @@
> -    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.jail...@wanadoo.fr>
> ---
> If needed, see post from Christoph Hellwig on the kernel-janitors ML:
>    https://marc.info/?l=kernel-janitors&m=158745678307186&w=4
> ---
>  drivers/media/pci/solo6x10/solo6x10-g723.c    | 11 +++---
>  drivers/media/pci/solo6x10/solo6x10-p2m.c     | 10 +++---
>  .../media/pci/solo6x10/solo6x10-v4l2-enc.c    | 35 ++++++++++---------
>  3 files changed, 29 insertions(+), 27 deletions(-)
> 
> diff --git a/drivers/media/pci/solo6x10/solo6x10-g723.c 
> b/drivers/media/pci/solo6x10/solo6x10-g723.c
> index d137b94869d8..6cebad665565 100644
> --- a/drivers/media/pci/solo6x10/solo6x10-g723.c
> +++ b/drivers/media/pci/solo6x10/solo6x10-g723.c
> @@ -124,9 +124,10 @@ static int snd_solo_pcm_open(struct snd_pcm_substream 
> *ss)
>       if (solo_pcm == NULL)
>               goto oom;
>  
> -     solo_pcm->g723_buf = pci_alloc_consistent(solo_dev->pdev,
> -                                               G723_PERIOD_BYTES,
> -                                               &solo_pcm->g723_dma);
> +     solo_pcm->g723_buf = dma_alloc_coherent(&solo_dev->pdev->dev,
> +                                             G723_PERIOD_BYTES,
> +                                             &solo_pcm->g723_dma,
> +                                             GFP_KERNEL);
>       if (solo_pcm->g723_buf == NULL)
>               goto oom;
>  
> @@ -148,8 +149,8 @@ static int snd_solo_pcm_close(struct snd_pcm_substream 
> *ss)
>       struct solo_snd_pcm *solo_pcm = snd_pcm_substream_chip(ss);
>  
>       snd_pcm_substream_chip(ss) = solo_pcm->solo_dev;
> -     pci_free_consistent(solo_pcm->solo_dev->pdev, G723_PERIOD_BYTES,
> -                         solo_pcm->g723_buf, solo_pcm->g723_dma);
> +     dma_free_coherent(&solo_pcm->solo_dev->pdev->dev, G723_PERIOD_BYTES,
> +                       solo_pcm->g723_buf, solo_pcm->g723_dma);
>       kfree(solo_pcm);
>  
>       return 0;
> diff --git a/drivers/media/pci/solo6x10/solo6x10-p2m.c 
> b/drivers/media/pci/solo6x10/solo6x10-p2m.c
> index db2afc6a5fcb..ca70a864a3ef 100644
> --- a/drivers/media/pci/solo6x10/solo6x10-p2m.c
> +++ b/drivers/media/pci/solo6x10/solo6x10-p2m.c
> @@ -37,16 +37,16 @@ int solo_p2m_dma(struct solo_dev *solo_dev, int wr,
>       if (WARN_ON_ONCE(!size))
>               return -EINVAL;
>  
> -     dma_addr = pci_map_single(solo_dev->pdev, sys_addr, size,
> -                               wr ? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
> -     if (pci_dma_mapping_error(solo_dev->pdev, dma_addr))
> +     dma_addr = dma_map_single(&solo_dev->pdev->dev, sys_addr, size,
> +                               wr ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
> +     if (dma_mapping_error(&solo_dev->pdev->dev, dma_addr))
>               return -ENOMEM;
>  
>       ret = solo_p2m_dma_t(solo_dev, wr, dma_addr, ext_addr, size,
>                            repeat, ext_size);
>  
> -     pci_unmap_single(solo_dev->pdev, dma_addr, size,
> -                      wr ? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
> +     dma_unmap_single(&solo_dev->pdev->dev, dma_addr, size,
> +                      wr ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
>  
>       return ret;
>  }
> diff --git a/drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c 
> b/drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c
> index 3cf7bd6186aa..0abcad4e84fa 100644
> --- a/drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c
> +++ b/drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c
> @@ -1286,10 +1286,11 @@ static struct solo_enc_dev *solo_enc_alloc(struct 
> solo_dev *solo_dev,
>       memcpy(solo_enc->jpeg_header, jpeg_header, solo_enc->jpeg_len);
>  
>       solo_enc->desc_nelts = 32;
> -     solo_enc->desc_items = pci_alloc_consistent(solo_dev->pdev,
> -                                   sizeof(struct solo_p2m_desc) *
> -                                   solo_enc->desc_nelts,
> -                                   &solo_enc->desc_dma);
> +     solo_enc->desc_items = dma_alloc_coherent(&solo_dev->pdev->dev,
> +                                               sizeof(struct solo_p2m_desc) *
> +                                               solo_enc->desc_nelts,
> +                                               &solo_enc->desc_dma,
> +                                               GFP_KERNEL);
>       ret = -ENOMEM;
>       if (solo_enc->desc_items == NULL)
>               goto hdl_free;
> @@ -1317,9 +1318,9 @@ static struct solo_enc_dev *solo_enc_alloc(struct 
> solo_dev *solo_dev,
>  vdev_release:
>       video_device_release(solo_enc->vfd);
>  pci_free:
> -     pci_free_consistent(solo_enc->solo_dev->pdev,
> -                     sizeof(struct solo_p2m_desc) * solo_enc->desc_nelts,
> -                     solo_enc->desc_items, solo_enc->desc_dma);
> +     dma_free_coherent(&solo_enc->solo_dev->pdev->dev,
> +                       sizeof(struct solo_p2m_desc) * solo_enc->desc_nelts,
> +                       solo_enc->desc_items, solo_enc->desc_dma);
>  hdl_free:
>       v4l2_ctrl_handler_free(hdl);
>       kfree(solo_enc);
> @@ -1331,9 +1332,9 @@ static void solo_enc_free(struct solo_enc_dev *solo_enc)
>       if (solo_enc == NULL)
>               return;
>  
> -     pci_free_consistent(solo_enc->solo_dev->pdev,
> -                     sizeof(struct solo_p2m_desc) * solo_enc->desc_nelts,
> -                     solo_enc->desc_items, solo_enc->desc_dma);
> +     dma_free_coherent(&solo_enc->solo_dev->pdev->dev,
> +                       sizeof(struct solo_p2m_desc) * solo_enc->desc_nelts,
> +                       solo_enc->desc_items, solo_enc->desc_dma);
>       video_unregister_device(solo_enc->vfd);
>       v4l2_ctrl_handler_free(&solo_enc->hdl);
>       kfree(solo_enc);
> @@ -1346,9 +1347,9 @@ int solo_enc_v4l2_init(struct solo_dev *solo_dev, 
> unsigned nr)
>       init_waitqueue_head(&solo_dev->ring_thread_wait);
>  
>       solo_dev->vh_size = sizeof(vop_header);
> -     solo_dev->vh_buf = pci_alloc_consistent(solo_dev->pdev,
> -                                             solo_dev->vh_size,
> -                                             &solo_dev->vh_dma);
> +     solo_dev->vh_buf = dma_alloc_coherent(&solo_dev->pdev->dev,
> +                                           solo_dev->vh_size,
> +                                           &solo_dev->vh_dma, GFP_KERNEL);
>       if (solo_dev->vh_buf == NULL)
>               return -ENOMEM;
>  
> @@ -1363,8 +1364,8 @@ int solo_enc_v4l2_init(struct solo_dev *solo_dev, 
> unsigned nr)
>  
>               while (i--)
>                       solo_enc_free(solo_dev->v4l2_enc[i]);
> -             pci_free_consistent(solo_dev->pdev, solo_dev->vh_size,
> -                                 solo_dev->vh_buf, solo_dev->vh_dma);
> +             dma_free_coherent(&solo_dev->pdev->dev, solo_dev->vh_size,
> +                               solo_dev->vh_buf, solo_dev->vh_dma);
>               solo_dev->vh_buf = NULL;
>               return ret;
>       }
> @@ -1391,6 +1392,6 @@ void solo_enc_v4l2_exit(struct solo_dev *solo_dev)
>               solo_enc_free(solo_dev->v4l2_enc[i]);
>  
>       if (solo_dev->vh_buf)
> -             pci_free_consistent(solo_dev->pdev, solo_dev->vh_size,
> -                         solo_dev->vh_buf, solo_dev->vh_dma);
> +             dma_free_coherent(&solo_dev->pdev->dev, solo_dev->vh_size,
> +                               solo_dev->vh_buf, solo_dev->vh_dma);
>  }
> -- 
> 2.27.0
> 

Signed-off-by: Ismael Luceno <ism...@iodev.co.uk>

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