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PCI/P2PDMA: Add provider's pci_dev to pci_p2pdma_pagemap struct

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The provider will be needed to figure out how to map a device.

Link: https://lore.kernel.org/r/[email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Logan Gunthorpe <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
This commit is contained in:
Logan Gunthorpe authored and Bjorn Helgaas committed 2019-08-16 08:40:05 -05:00
1 parent a6e6fe6549
commit 0afea38143
1 file changed
+2
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drivers/pci/p2pdma.c
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@@ -27,6 +27,7 @@ struct pci_p2pdma {
struct pci_p2pdma_pagemap {
struct dev_pagemap pgmap;
struct pci_dev *provider;
u64 bus_offset;
};
@@ -178,6 +179,7 @@ int pci_p2pdma_add_resource(struct pci_dev *pdev, int bar, size_t size,
pgmap->res.flags = pci_resource_flags(pdev, bar);
pgmap->type = MEMORY_DEVICE_PCI_P2PDMA;
p2p_pgmap->provider = pdev;
p2p_pgmap->bus_offset = pci_bus_address(pdev, bar) -
pci_resource_start(pdev, bar);