2.6.23-stable review patch. If anyone has any objections, please let us know.
------------------
From: David Miller <[EMAIL PROTECTED]>
[SPARC64]: Implement pci_resource_to_user()
[ Upstream commit: bcea1db16ba1c45ccebb3bfb8441642d1342c4d5 ]
This makes libpciaccess able to mmap() resources of the
device properly.
Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
---
arch/sparc64/kernel/pci.c | 16 ++++++++++++++++
include/asm-sparc64/pci.h | 4 ++++
2 files changed, 20 insertions(+)
--- a/arch/sparc64/kernel/pci.c
+++ b/arch/sparc64/kernel/pci.c
@@ -1276,4 +1276,20 @@ int pci_dma_supported(struct pci_dev *pd
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) */
--- a/include/asm-sparc64/pci.h
+++ b/include/asm-sparc64/pci.h
@@ -200,6 +200,10 @@ static inline int pci_get_legacy_ide_irq
struct device_node;
extern struct device_node *pci_device_to_OF_node(struct pci_dev *pdev);
+#define HAVE_ARCH_PCI_RESOURCE_TO_USER
+extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
+ const struct resource *rsrc,
+ resource_size_t *start, resource_size_t *end);
#endif /* __KERNEL__ */
#endif /* __SPARC64_PCI_H */
--
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