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Commit 9c01dda0 authored by Navin Boppuri's avatar Navin Boppuri Committed by Linus Torvalds
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[PATCH] x86_64: Search K8 devices on more devices. 



arch/x86_64/kernel/aperture.c: The search for the AGP bridge has been
extended to search for all the 256 buses instead of the first 32. This
is required since on a some systems, the bridge may be located on a bus
much farther than the first 32. By searching all 256 buses, we guarantee
that the search succeeds on such systems.

arch/x86_64/kernel/pci-gart.c: The search for the Northbridge is not
limited to just bus 0 anymore. This is required because on certain
systems, we may not find one on bus 0.

Signed-off-by: default avatarNavin Boppuri <navin.boppuri@newisys.com>
Signed-off-by: default avatarAndi Kleen <ak@suse.de>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 94949436

arch/x86_64/kernel/aperture.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -161,7 +161,7 @@ static __u32 __init search_agp_bridge(u32 *order, int *valid_agp) 
	int num, slot, func;

	int num, slot, func;





	/* Poor man's PCI discovery */

	/* Poor man's PCI discovery */

	for (num = 0; num < 32; num++) { 

	for (num = 0; num < 256; num++) { 

		for (slot = 0; slot < 32; slot++) { 

		for (slot = 0; slot < 32; slot++) { 

			for (func = 0; func < 8; func++) { 

			for (func = 0; func < 8; func++) { 

				u32 class, cap;

				u32 class, cap;

arch/x86_64/kernel/pci-gart.c

+1 −3
Original line number Original line Diff line number Diff line
@@ -65,9 +65,7 @@ static u32 gart_unmapped_entry; 




#define for_all_nb(dev) \

#define for_all_nb(dev) \

	dev = NULL;	\

	dev = NULL;	\

	while ((dev = pci_get_device(PCI_VENDOR_ID_AMD, 0x1103, dev))!=NULL)\

	while ((dev = pci_get_device(PCI_VENDOR_ID_AMD, 0x1103, dev))!=NULL)

	     if (dev->bus->number == 0 && 				     \

		    (PCI_SLOT(dev->devfn) >= 24) && (PCI_SLOT(dev->devfn) <= 31))





static struct pci_dev *northbridges[MAX_NB];

static struct pci_dev *northbridges[MAX_NB];

static u32 northbridge_flush_word[MAX_NB];

static u32 northbridge_flush_word[MAX_NB];