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skd: switch to the generic DMA API 

The PCI DMA API is deprecated, switch to the generic DMA API instead.
Also make use of the dma_set_mask_and_coherent helper to easily set
the streaming an coherent DMA masks together.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2018-10-18 15:15:11 +02:00 committed by Jens Axboe
parent ecb0a83e31
commit 1381262148
1 changed files with 25 additions and 38 deletions
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63
drivers/block/skd_main.c
View File

@ -632,7 +632,7 @@ static bool skd_preop_sg_list(struct skd_device *skdev,
* Map scatterlist to PCI bus addresses.
* Note PCI might change the number of entries.
*/
n_sg = pci_map_sg(skdev->pdev, sgl, n_sg, skreq->data_dir);
n_sg = dma_map_sg(&skdev->pdev->dev, sgl, n_sg, skreq->data_dir);
if (n_sg <= 0)
return false;
@ -682,7 +682,8 @@ static void skd_postop_sg_list(struct skd_device *skdev,
skreq->sksg_list[skreq->n_sg - 1].next_desc_ptr =
skreq->sksg_dma_address +
((skreq->n_sg) * sizeof(struct fit_sg_descriptor));
pci_unmap_sg(skdev->pdev, &skreq->sg[0], skreq->n_sg, skreq->data_dir);
dma_unmap_sg(&skdev->pdev->dev, &skreq->sg[0], skreq->n_sg,
skreq->data_dir);
}
/*
@ -2632,8 +2633,8 @@ static int skd_cons_skcomp(struct skd_device *skdev)
"comp pci_alloc, total bytes %zd entries %d\n",
SKD_SKCOMP_SIZE, SKD_N_COMPLETION_ENTRY);
skcomp = pci_zalloc_consistent(skdev->pdev, SKD_SKCOMP_SIZE,
&skdev->cq_dma_address);
skcomp = dma_zalloc_coherent(&skdev->pdev->dev, SKD_SKCOMP_SIZE,
&skdev->cq_dma_address, GFP_KERNEL);
if (skcomp == NULL) {
rc = -ENOMEM;
@ -2674,10 +2675,10 @@ static int skd_cons_skmsg(struct skd_device *skdev)
skmsg->id = i + SKD_ID_FIT_MSG;
skmsg->msg_buf = pci_alloc_consistent(skdev->pdev,
SKD_N_FITMSG_BYTES,
&skmsg->mb_dma_address);
skmsg->msg_buf = dma_alloc_coherent(&skdev->pdev->dev,
SKD_N_FITMSG_BYTES,
&skmsg->mb_dma_address,
GFP_KERNEL);
if (skmsg->msg_buf == NULL) {
rc = -ENOMEM;
goto err_out;
@ -2971,8 +2972,8 @@ err_out:
static void skd_free_skcomp(struct skd_device *skdev)
{
if (skdev->skcomp_table)
pci_free_consistent(skdev->pdev, SKD_SKCOMP_SIZE,
skdev->skcomp_table, skdev->cq_dma_address);
dma_free_coherent(&skdev->pdev->dev, SKD_SKCOMP_SIZE,
skdev->skcomp_table, skdev->cq_dma_address);
skdev->skcomp_table = NULL;
skdev->cq_dma_address = 0;
@ -2991,8 +2992,8 @@ static void skd_free_skmsg(struct skd_device *skdev)
skmsg = &skdev->skmsg_table[i];
if (skmsg->msg_buf != NULL) {
pci_free_consistent(skdev->pdev, SKD_N_FITMSG_BYTES,
skmsg->msg_buf,
dma_free_coherent(&skdev->pdev->dev, SKD_N_FITMSG_BYTES,
skmsg->msg_buf,
skmsg->mb_dma_address);
}
skmsg->msg_buf = NULL;
@ -3172,18 +3173,12 @@ static int skd_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
rc = pci_request_regions(pdev, DRV_NAME);
if (rc)
goto err_out;
rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
if (!rc) {
if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
dev_err(&pdev->dev, "consistent DMA mask error %d\n",
rc);
}
} else {
rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (rc) {
dev_err(&pdev->dev, "DMA mask error %d\n", rc);
goto err_out_regions;
}
rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
if (rc)
dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
if (rc) {
dev_err(&pdev->dev, "DMA mask error %d\n", rc);
goto err_out_regions;
}
if (!skd_major) {
@ -3367,20 +3362,12 @@ static int skd_pci_resume(struct pci_dev *pdev)
rc = pci_request_regions(pdev, DRV_NAME);
if (rc)
goto err_out;
rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
if (!rc) {
if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
dev_err(&pdev->dev, "consistent DMA mask error %d\n",
rc);
}
} else {
rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (rc) {
dev_err(&pdev->dev, "DMA mask error %d\n", rc);
goto err_out_regions;
}
rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
if (rc)
dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
if (rc) {
dev_err(&pdev->dev, "DMA mask error %d\n", rc);
goto err_out_regions;
}
pci_set_master(pdev);