diff mbox series

[v2,02/14] PCI/P2PDMA: Add the provider's pci_dev to the pci_p2pdma_pagemap struct

Message ID 20190730163545.4915-3-logang@deltatee.com (mailing list archive)
State Superseded
Headers show
Series PCI/P2PDMA: Support transactions that hit the host bridge | expand

Commit Message

Logan Gunthorpe July 30, 2019, 4:35 p.m. UTC
The provider will be needed to figure out how to properly map
a device.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
---
 drivers/pci/p2pdma.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/drivers/pci/p2pdma.c b/drivers/pci/p2pdma.c
index 03e9c887bdfb..93fbda14f4a9 100644
--- a/drivers/pci/p2pdma.c
+++ b/drivers/pci/p2pdma.c
@@ -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);