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* x86, k8: Rename k8.[ch] to amd_nb.[ch] and CONFIG_K8_NB to CONFIG_AMD_NBAndreas Herrmann2010-09-201-39/+0
| | | | | | | | | | | | | The file names are somehow misleading as the code is not specific to AMD K8 CPUs anymore. The files accomodate code for other AMD CPU northbridges as well. Same is true for the config option which is valid for AMD CPU northbridges in general and not specific to K8. Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> LKML-Reference: <20100917160343.GD4958@loge.amd.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
* x86, k8-gart: Decouple handling of garts and northbridgesAndreas Herrmann2010-09-171-5/+8
| | | | | | | | | | | So far we only provide num_k8_northbridges. This is required in different areas (e.g. L3 cache index disable, GART). But not all AMD CPUs provide a GART. Thus it is useful to split off the GART handling from the generic caching of AMD northbridge misc devices. Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com> LKML-Reference: <20100917160254.GC4958@loge.amd.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
* x86, k8: Fix build error when K8_NB is disabledBorislav Petkov2010-05-141-0/+5
| | | | | | | | | | | K8_NB depends on PCI and when the last is disabled (allnoconfig) we fail at the final linking stage due to missing exported num_k8_northbridges. Add a header stub for that. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com> LKML-Reference: <20100503183036.GJ26107@aftab> Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: <stable@kernel.org>
* x86: k8.h: Add struct bootnodeRandy Dunlap2009-11-081-0/+1
| | | | | | | | | | | | | | | 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>
* x86: Export k8 physical topologyDavid Rientjes2009-10-121-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* x86: k8 convert node_to_k8_nb_misc() from a macro to an inline functionJaswinder Singh Rajput2009-04-151-3/+8
| | | | | | | | | | | | | | | | | 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>
* x86: cacheinfo: use cached K8 NB_MISC devices instead of scanning for itAndreas Herrmann2009-04-101-0/+8
| | | | | | | | | | 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>
* x86: Fix ASM_X86__ header guardsH. Peter Anvin2008-10-221-3/+3
| | | | | | | | | 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>
* x86, um: ... and asm-x86 moveAl Viro2008-10-221-0/+15
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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