linux/arch/x86/include/asm/k8.h

#ifndef _ASM_X86_K8_H
#define _ASM_X86_K8_H

#include <linux/pci.h>

extern struct pci_device_id k8_nb_ids[];
struct bootnode;

extern int early_is_k8_nb(u32 value);
extern struct pci_dev **k8_northbridges;
extern int num_k8_northbridges;
extern int cache_k8_northbridges(void);
extern void k8_flush_garts(void);
extern int k8_get_nodes(struct bootnode *nodes);
extern int k8_numa_init(unsigned long start_pfn, unsigned long end_pfn);
extern int k8_scan_nodes(void);

#ifdef CONFIG_K8_NB
static inline struct pci_dev *node_to_k8_nb_misc(int node)
{
	return (node < num_k8_northbridges) ? k8_northbridges[node] : NULL;
}
#else
static inline struct pci_dev *node_to_k8_nb_misc(int node)
{
	return NULL;
}
#endif


#endif /* _ASM_X86_K8_H */
x86: Fix ASM_X86__ header guards Change header guards named "ASM_X86__" to "_ASM_X86_" since: a. the double underscore is ugly and pointless. b. no leading underscore violates namespace constraints. Signed-off-by: H. Peter Anvin <hpa@zytor.com> 2008-10-23 05:26:29 +00:00			`#ifndef _ASM_X86_K8_H`
			`#define _ASM_X86_K8_H`
[PATCH] x86_64: Clean and enhance up K8 northbridge access code - Factor out the duplicated access/cache code into a single file * Shared between i386/x86-64. - Share flush code between AGP and IOMMU * Fix a bug: AGP didn't wait for end of flush before - Drop 8 northbridges limit and allocate dynamically - Add lock to serialize AGP and IOMMU GART flushes - Add PCI ID for next AMD northbridge - Random related cleanups The old K8 NUMA discovery code is unchanged. New systems should all use SRAT for this. Cc: "Navin Boppuri" <navin.boppuri@newisys.com> Cc: Dave Jones <davej@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 2006-06-26 11:56:40 +00:00
			`#include <linux/pci.h>`

			`extern struct pci_device_id k8_nb_ids[];`
x86: k8.h: Add struct bootnode k8.h uses struct bootnode but does not #include a header file for it, so provide a simple declaration for it. arch/x86/include/asm/k8.h:13: warning: 'struct bootnode' declared inside parameter list arch/x86/include/asm/k8.h:13: warning: its scope is only this definition or declaration, which is probably not what you want Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: David Rientjes <rientjes@google.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> LKML-Reference: <20091028160955.d27ccb16.randy.dunlap@oracle.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> 2009-10-28 23:09:55 +00:00			`struct bootnode;`
[PATCH] x86_64: Clean and enhance up K8 northbridge access code - Factor out the duplicated access/cache code into a single file * Shared between i386/x86-64. - Share flush code between AGP and IOMMU * Fix a bug: AGP didn't wait for end of flush before - Drop 8 northbridges limit and allocate dynamically - Add lock to serialize AGP and IOMMU GART flushes - Add PCI ID for next AMD northbridge - Random related cleanups The old K8 NUMA discovery code is unchanged. New systems should all use SRAT for this. Cc: "Navin Boppuri" <navin.boppuri@newisys.com> Cc: Dave Jones <davej@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 2006-06-26 11:56:40 +00:00
			`extern int early_is_k8_nb(u32 value);`
			`extern struct pci_dev **k8_northbridges;`
			`extern int num_k8_northbridges;`
			`extern int cache_k8_northbridges(void);`
			`extern void k8_flush_garts(void);`
x86: Export k8 physical topology To eventually interleave emulated nodes over physical nodes, we need to know the physical topology of the machine without actually registering it. This does the k8 node setup in two parts: detection and registration. NUMA emulation can then used the physical topology detected to setup the address ranges of emulated nodes accordingly. If emulation isn't used, the k8 nodes are registered as normal. Two formals are added to the x86 NUMA setup functions: `acpi' and `k8'. These represent whether ACPI or K8 NUMA has been detected; both cannot be true at the same time. This specifies to the NUMA emulation code whether an underlying physical NUMA topology exists and which interface to use. This patch deals solely with separating the k8 setup path into Northbridge detection and registration steps and leaves the ACPI changes for a subsequent patch. The `acpi' formal is added here, however, to avoid touching all the header files again in the next patch. This approach also ensures emulated nodes will not span physical nodes so the true memory latency is not misrepresented. k8_get_nodes() may now be used to export the k8 physical topology of the machine for NUMA emulation. Signed-off-by: David Rientjes <rientjes@google.com> Cc: Andreas Herrmann <andreas.herrmann3@amd.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Balbir Singh <balbir@linux.vnet.ibm.com> Cc: Ankita Garg <ankita@in.ibm.com> Cc: Len Brown <len.brown@intel.com> LKML-Reference: <alpine.DEB.1.00.0909251518400.14754@chino.kir.corp.google.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> 2009-09-25 22:20:00 +00:00			`extern int k8_get_nodes(struct bootnode *nodes);`
			`extern int k8_numa_init(unsigned long start_pfn, unsigned long end_pfn);`
			`extern int k8_scan_nodes(void);`
[PATCH] x86_64: Clean and enhance up K8 northbridge access code - Factor out the duplicated access/cache code into a single file * Shared between i386/x86-64. - Share flush code between AGP and IOMMU * Fix a bug: AGP didn't wait for end of flush before - Drop 8 northbridges limit and allocate dynamically - Add lock to serialize AGP and IOMMU GART flushes - Add PCI ID for next AMD northbridge - Random related cleanups The old K8 NUMA discovery code is unchanged. New systems should all use SRAT for this. Cc: "Navin Boppuri" <navin.boppuri@newisys.com> Cc: Dave Jones <davej@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 2006-06-26 11:56:40 +00:00
x86: cacheinfo: use cached K8 NB_MISC devices instead of scanning for it Impact: avoid code duplication Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Mark Langsdorf <mark.langsdorf@amd.com> LKML-Reference: <20090409131617.GI31527@alberich.amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> 2009-04-09 13:16:17 +00:00			`#ifdef CONFIG_K8_NB`
x86: k8 convert node_to_k8_nb_misc() from a macro to an inline function Converting node_to_k8_nb_misc() from a macro to an inline function makes compiler see the 'node' parameter in the !CONFIG_K8_NB too, which eliminates these compiler warnings: arch/x86/kernel/cpu/intel_cacheinfo.c: In function ‘show_cache_disable’: arch/x86/kernel/cpu/intel_cacheinfo.c:712: warning: unused variable ‘node’ arch/x86/kernel/cpu/intel_cacheinfo.c: In function ‘store_cache_disable’: arch/x86/kernel/cpu/intel_cacheinfo.c:739: warning: unused variable ‘node’ Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Cc: Andreas Herrmann <andreas.herrmann3@amd.com> Cc: Mark Langsdorf <mark.langsdorf@amd.com> LKML-Reference: <1239730477.2966.26.camel@ht.satnam> Signed-off-by: Ingo Molnar <mingo@elte.hu> 2009-04-14 17:34:37 +00:00			`static inline struct pci_dev *node_to_k8_nb_misc(int node)`
			`{`
			`return (node < num_k8_northbridges) ? k8_northbridges[node] : NULL;`
			`}`
x86: cacheinfo: use cached K8 NB_MISC devices instead of scanning for it Impact: avoid code duplication Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Mark Langsdorf <mark.langsdorf@amd.com> LKML-Reference: <20090409131617.GI31527@alberich.amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> 2009-04-09 13:16:17 +00:00			`#else`
x86: k8 convert node_to_k8_nb_misc() from a macro to an inline function Converting node_to_k8_nb_misc() from a macro to an inline function makes compiler see the 'node' parameter in the !CONFIG_K8_NB too, which eliminates these compiler warnings: arch/x86/kernel/cpu/intel_cacheinfo.c: In function ‘show_cache_disable’: arch/x86/kernel/cpu/intel_cacheinfo.c:712: warning: unused variable ‘node’ arch/x86/kernel/cpu/intel_cacheinfo.c: In function ‘store_cache_disable’: arch/x86/kernel/cpu/intel_cacheinfo.c:739: warning: unused variable ‘node’ Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Cc: Andreas Herrmann <andreas.herrmann3@amd.com> Cc: Mark Langsdorf <mark.langsdorf@amd.com> LKML-Reference: <1239730477.2966.26.camel@ht.satnam> Signed-off-by: Ingo Molnar <mingo@elte.hu> 2009-04-14 17:34:37 +00:00			`static inline struct pci_dev *node_to_k8_nb_misc(int node)`
			`{`
			`return NULL;`
			`}`
x86: cacheinfo: use cached K8 NB_MISC devices instead of scanning for it Impact: avoid code duplication Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Mark Langsdorf <mark.langsdorf@amd.com> LKML-Reference: <20090409131617.GI31527@alberich.amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> 2009-04-09 13:16:17 +00:00			`#endif`


x86: Fix ASM_X86__ header guards Change header guards named "ASM_X86__" to "_ASM_X86_" since: a. the double underscore is ugly and pointless. b. no leading underscore violates namespace constraints. Signed-off-by: H. Peter Anvin <hpa@zytor.com> 2008-10-23 05:26:29 +00:00			`#endif /* _ASM_X86_K8_H */`