diff options
| author | Matthew Wilcox <matthew@wil.cx> | 2008-02-10 09:45:28 -0500 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-10 12:52:46 -0800 |
| commit | b6ce068a1285a24185b01be8a49021827516b3e1 (patch) | |
| tree | ea1420fefff86f2e2ee4ed83f08ec2dd99a86dc5 /arch/x86/pci/common.c | |
| parent | a0ca9909609470ad779b9b9cc68ce96e975afff7 (diff) | |
Change pci_raw_ops to pci_raw_read/write
We want to allow different implementations of pci_raw_ops for standard
and extended config space on x86. Rather than clutter generic code with
knowledge of this, we make pci_raw_ops private to x86 and use it to
implement the new raw interface -- raw_pci_read() and raw_pci_write().
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/x86/pci/common.c')
| -rw-r--r-- | arch/x86/pci/common.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index 52deabc72a6f..b7c67a187b6b 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -26,16 +26,37 @@ int pcibios_last_bus = -1; unsigned long pirq_table_addr; struct pci_bus *pci_root_bus; struct pci_raw_ops *raw_pci_ops; +struct pci_raw_ops *raw_pci_ext_ops; + +int raw_pci_read(unsigned int domain, unsigned int bus, unsigned int devfn, + int reg, int len, u32 *val) +{ + if (reg < 256 && raw_pci_ops) + return raw_pci_ops->read(domain, bus, devfn, reg, len, val); + if (raw_pci_ext_ops) + return raw_pci_ext_ops->read(domain, bus, devfn, reg, len, val); + return -EINVAL; +} + +int raw_pci_write(unsigned int domain, unsigned int bus, unsigned int devfn, + int reg, int len, u32 val) +{ + if (reg < 256 && raw_pci_ops) + return raw_pci_ops->write(domain, bus, devfn, reg, len, val); + if (raw_pci_ext_ops) + return raw_pci_ext_ops->write(domain, bus, devfn, reg, len, val); + return -EINVAL; +} static int pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *value) { - return raw_pci_ops->read(pci_domain_nr(bus), bus->number, + return raw_pci_read(pci_domain_nr(bus), bus->number, devfn, where, size, value); } static int pci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 value) { - return raw_pci_ops->write(pci_domain_nr(bus), bus->number, + return raw_pci_write(pci_domain_nr(bus), bus->number, devfn, where, size, value); } |