From 928cf8c62763349efc550a12f6518e52c3390906 Mon Sep 17 00:00:00 2001 From: Andi Kleen <ak@suse.de> Date: Mon, 12 Dec 2005 22:17:10 -0800 Subject: [PATCH] i386/x86-64 Fall back to type 1 access when no entry found When there is no entry for a bus in MCFG fall back to type1. This is especially important on K8 systems where always some devices can't be accessed using mmconfig (in particular the builtin northbridge doesn't support it for its own devices) Cc: <gregkh@suse.de> Cc: <jgarzik@pobox.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> --- arch/i386/pci/pci.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'arch/i386/pci/pci.h') diff --git a/arch/i386/pci/pci.h b/arch/i386/pci/pci.h index 127d53ad16be..f550781ec310 100644 --- a/arch/i386/pci/pci.h +++ b/arch/i386/pci/pci.h @@ -74,3 +74,10 @@ 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); + + -- cgit v1.2.3