diff options
Diffstat (limited to 'drivers/pci/p2pdma.c')
-rw-r--r-- | drivers/pci/p2pdma.c | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/drivers/pci/p2pdma.c b/drivers/pci/p2pdma.c index 64ebed129dbf..de1c331dbed4 100644 --- a/drivers/pci/p2pdma.c +++ b/drivers/pci/p2pdma.c @@ -53,7 +53,7 @@ static ssize_t size_show(struct device *dev, struct device_attribute *attr, if (pdev->p2pdma->pool) size = gen_pool_size(pdev->p2pdma->pool); - return snprintf(buf, PAGE_SIZE, "%zd\n", size); + return scnprintf(buf, PAGE_SIZE, "%zd\n", size); } static DEVICE_ATTR_RO(size); @@ -66,7 +66,7 @@ static ssize_t available_show(struct device *dev, struct device_attribute *attr, if (pdev->p2pdma->pool) avail = gen_pool_avail(pdev->p2pdma->pool); - return snprintf(buf, PAGE_SIZE, "%zd\n", avail); + return scnprintf(buf, PAGE_SIZE, "%zd\n", avail); } static DEVICE_ATTR_RO(available); @@ -75,8 +75,8 @@ static ssize_t published_show(struct device *dev, struct device_attribute *attr, { struct pci_dev *pdev = to_pci_dev(dev); - return snprintf(buf, PAGE_SIZE, "%d\n", - pdev->p2pdma->p2pmem_published); + return scnprintf(buf, PAGE_SIZE, "%d\n", + pdev->p2pdma->p2pmem_published); } static DEVICE_ATTR_RO(published); @@ -185,9 +185,9 @@ int pci_p2pdma_add_resource(struct pci_dev *pdev, int bar, size_t size, return -ENOMEM; pgmap = &p2p_pgmap->pgmap; - pgmap->res.start = pci_resource_start(pdev, bar) + offset; - pgmap->res.end = pgmap->res.start + size - 1; - pgmap->res.flags = pci_resource_flags(pdev, bar); + pgmap->range.start = pci_resource_start(pdev, bar) + offset; + pgmap->range.end = pgmap->range.start + size - 1; + pgmap->nr_range = 1; pgmap->type = MEMORY_DEVICE_PCI_P2PDMA; p2p_pgmap->provider = pdev; @@ -202,13 +202,13 @@ int pci_p2pdma_add_resource(struct pci_dev *pdev, int bar, size_t size, error = gen_pool_add_owner(pdev->p2pdma->pool, (unsigned long)addr, pci_bus_address(pdev, bar) + offset, - resource_size(&pgmap->res), dev_to_node(&pdev->dev), + range_len(&pgmap->range), dev_to_node(&pdev->dev), pgmap->ref); if (error) goto pages_free; - pci_info(pdev, "added peer-to-peer DMA memory %pR\n", - &pgmap->res); + pci_info(pdev, "added peer-to-peer DMA memory %#llx-%#llx\n", + pgmap->range.start, pgmap->range.end); return 0; @@ -556,13 +556,14 @@ int pci_p2pdma_distance_many(struct pci_dev *provider, struct device **clients, return -1; for (i = 0; i < num_clients; i++) { - if (IS_ENABLED(CONFIG_DMA_VIRT_OPS) && - clients[i]->dma_ops == &dma_virt_ops) { +#ifdef CONFIG_DMA_VIRT_OPS + if (clients[i]->dma_ops == &dma_virt_ops) { if (verbose) dev_warn(clients[i], "cannot be used for peer-to-peer DMA because the driver makes use of dma_virt_ops\n"); return -1; } +#endif pci_client = find_parent_pci_dev(clients[i]); if (!pci_client) { @@ -761,7 +762,7 @@ struct scatterlist *pci_p2pmem_alloc_sgl(struct pci_dev *pdev, struct scatterlist *sg; void *addr; - sg = kzalloc(sizeof(*sg), GFP_KERNEL); + sg = kmalloc(sizeof(*sg), GFP_KERNEL); if (!sg) return NULL; @@ -842,9 +843,10 @@ static int __pci_p2pdma_map_sg(struct pci_p2pdma_pagemap *p2p_pgmap, * this should never happen because it will be prevented * by the check in pci_p2pdma_distance_many() */ - if (WARN_ON_ONCE(IS_ENABLED(CONFIG_DMA_VIRT_OPS) && - dev->dma_ops == &dma_virt_ops)) +#ifdef CONFIG_DMA_VIRT_OPS + if (WARN_ON_ONCE(dev->dma_ops == &dma_virt_ops)) return 0; +#endif for_each_sg(sg, s, nents, i) { paddr = sg_phys(s); |