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authorDavid S. Miller <davem@davemloft.net>2007-12-25 02:20:33 -0800
committerDavid S. Miller <davem@davemloft.net>2007-12-26 19:33:46 -0800
commitbcea1db16ba1c45ccebb3bfb8441642d1342c4d5 (patch)
tree6930a11e79193d56e2c0f344c04ac5c37a56f7eb /arch/sparc64/kernel/pci.c
parent11ee29577cc1637f94d903a6ea322cf1ed8ce1b3 (diff)
[SPARC64]: Implement pci_resource_to_user()
This makes libpciaccess able to mmap() resources of the device properly. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/kernel/pci.c')
-rw-r--r--arch/sparc64/kernel/pci.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c
index 63b3ebc0c3c2..a61c38fe75ea 100644
--- a/arch/sparc64/kernel/pci.c
+++ b/arch/sparc64/kernel/pci.c
@@ -1275,4 +1275,20 @@ int pci_dma_supported(struct pci_dev *pdev, u64 device_mask)
return (device_mask & dma_addr_mask) == dma_addr_mask;
}
+void pci_resource_to_user(const struct pci_dev *pdev, int bar,
+ const struct resource *rp, resource_size_t *start,
+ resource_size_t *end)
+{
+ struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller;
+ unsigned long offset;
+
+ if (rp->flags & IORESOURCE_IO)
+ offset = pbm->io_space.start;
+ else
+ offset = pbm->mem_space.start;
+
+ *start = rp->start - offset;
+ *end = rp->end - offset;
+}
+
#endif /* !(CONFIG_PCI) */