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>

1 files changed, 11 insertions, 4 deletions

diff --git a/arch/x86/pci/pci.h b/arch/x86/pci/pci.h
index 36cb44c397c3..3431518d921a 100644
--- a/arch/x86/pci/pci.h
+++ b/arch/x86/pci/pci.h
@@ -85,10 +85,17 @@ extern spinlock_t pci_config_lock;
 extern int (*pcibios_enable_irq)(struct pci_dev *dev);
 extern void (*pcibios_disable_irq)(struct pci_dev *dev);
 
-extern int pci_conf1_write(unsigned int seg, unsigned int bus,
-                           unsigned int devfn, int reg, int len, u32 value);
-extern int pci_conf1_read(unsigned int seg, unsigned int bus,
-                          unsigned int devfn, int reg, int len, u32 *value);
+struct pci_raw_ops {
+        int (*read)(unsigned int domain, unsigned int bus, unsigned int devfn,
+                                                int reg, int len, u32 *val);
+        int (*write)(unsigned int domain, unsigned int bus, unsigned int devfn,
+                                                int reg, int len, u32 val);
+};
+
+extern struct pci_raw_ops *raw_pci_ops;
+extern struct pci_raw_ops *raw_pci_ext_ops;
+
+extern struct pci_raw_ops pci_direct_conf1;
 
 extern int pci_direct_probe(void);
 extern void pci_direct_init(int type);