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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-10-03 19:49:32 +1000 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2008-10-20 11:01:46 -0700 |
| commit | f19aeb1f3638b7bb4ca21eb361f004fac2bfe259 (patch) | |
| tree | 2990881affb22ba426149e8d4c317fe9df9992c7 /drivers/pci/pci.h | |
| parent | f393d9b130423a7a47c751b26df07ceaa5dc76a9 (diff) | |
| download | lwn-f19aeb1f3638b7bb4ca21eb361f004fac2bfe259.tar.gz lwn-f19aeb1f3638b7bb4ca21eb361f004fac2bfe259.zip | |
PCI: Add ability to mmap legacy_io on some platforms
This adds the ability to mmap legacy IO space to the legacy_io files
in sysfs on platforms that support it. This will allow to clean up
X to use this instead of /dev/mem for legacy IO accesses such as
those performed by Int10.
While at it I moved pci_create/remove_legacy_files() to pci-sysfs.c
where I think they belong, thus making more things statis in there
and cleaned up some spurrious prototypes in the ia64 pci.h file
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci/pci.h')
| -rw-r--r-- | drivers/pci/pci.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 39684c1415c5..b205ab866a1d 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -82,7 +82,13 @@ static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; } /* Functions for PCI Hotplug drivers to use */ extern unsigned int pci_do_scan_bus(struct pci_bus *bus); +#ifdef HAVE_PCI_LEGACY +extern void pci_create_legacy_files(struct pci_bus *bus); extern void pci_remove_legacy_files(struct pci_bus *bus); +#else +static inline void pci_create_legacy_files(struct pci_bus *bus) { return; } +static inline void pci_remove_legacy_files(struct pci_bus *bus) { return; } +#endif /* Lock for read/write access to pci device and bus lists */ extern struct rw_semaphore pci_bus_sem; |