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path: root/arch/x86/mm/k8topology_64.c
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2009-11-24x86: Move find_smp_config() earlier and avoid bootmem usageYinghai Lu1-12/+0
Move the find_smp_config() call to before bootmem is initialized. Use reserve_early() instead of reserve_bootmem() in it. This simplifies the code, we only need to call find_smp_config() once and can remove the now unneeded reserve parameter from x86_init_mpparse::find_smp_config. We thus also reduce x86's dependency on bootmem allocations. Signed-off-by: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <4B0BB9F2.70907@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-10-13x86: Export k8 physical topologyDavid Rientjes1-13/+39
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>
2009-10-13x86: Clean up and add missing log levels for k8David Rientjes1-20/+19
Convert all printk's in arch/x86/mm/k8topology_64.c to use pr_info() or pr_err() appropriately. Adds log levels for messages currently lacking them. Signed-off-by: David Rientjes <rientjes@google.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.1.00.0909251517440.14754@chino.kir.corp.google.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-06x86: k8 numa register active regions laterYinghai Lu1-11/+9
Impact: cleanup don't register early, so we don't need to clear actived regions if it fail to get node hash shift or wild set in nb config. also remove nodeids array that is not needed Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86: remove end_pfn in 64bitYinghai Lu1-2/+2
and use max_pfn directly. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08Merge branch 'x86/mpparse' into x86/develIngo Molnar1-0/+4
Conflicts: arch/x86/Kconfig arch/x86/kernel/io_apic_32.c arch/x86/kernel/setup_64.c arch/x86/mm/init_32.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08x86: fix compiling when CONFIG_X86_MPPARSE is not setYinghai Lu1-0/+4
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-25x86: k8topology cleanup variable declarationsThomas Gleixner1-7/+2
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-25x86: k8topology fix shadow variableThomas Gleixner1-3/+2
sparse mutters: arch/x86/mm/k8topology_64.c:108:7: warning: symbol 'nodeid' shadows an earlier one Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-25x86: k8topology add missing headerThomas Gleixner1-0/+1
k8_scan_nodes is global and needs a prototype. Add the header file which contains it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-04-27acpi: get boot_cpu_id as early for k8_scan_nodesYinghai Lu1-1/+37
[mingo@elte.hu: split from "x86_64: get boot_cpu_id as early for k8_scan_nodes] Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-19srat, x86: add support for nodes spanning other nodesSuresh Siddha1-1/+1
For example, If the physical address layout on a two node system with 8 GB memory is something like: node 0: 0-2GB, 4-6GB node 1: 2-4GB, 6-8GB Current kernels fail to boot/detect this NUMA topology. ACPI SRAT tables can expose such a topology which needs to be supported. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: add PCI IDs to k8topology_64.cJoachim Deguara1-2/+6
This just adds the PCI IDs of AMD's family 10h and 11h CPU's northbridges to k8topology discovery. Signed-off-by: Joachim Deguara <joachim.deguara@amd.com> Signed-off-by: Andi Kleen <ak@suse.de> Acked-by: Yinghai Lu <yinghai.lu@sun.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: clean up k8topology.cCarlos R. Mafra1-72/+72
This patch fixes all errors pointed out by checkpatch.pl. errors lines of code errors/KLOC arch/x86/mm/k8topology_64.c (before) 72 185 389.1 arch/x86/mm/k8topology_64.c (after) 0 185 0 No code changed. text data bss dec hex filename 1506 0 0 1506 5e2 k8topology_64.o.after 1506 0 0 1506 5e2 k8topology_64.o.before md5sum: f9f48331a7eca4fc60d2a03369dc5f53 k8topology_64.o.after f9f48331a7eca4fc60d2a03369dc5f53 k8topology_64.o.before Signed-off-by: Carlos R. Mafra <crmafra@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30x86: use core id bits for apicid_to_node initializationYinghai Lu1-7/+10
We shoud use core id bits instead of max cores, in case later with AMD downcores Quad core Opteron. [ tglx: arch/x86 adaptation ] Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Andi Kleen <ak@suse.de> Cc: Christoph Lameter <clameter@sgi.com> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-11x86_64: move mmThomas Gleixner1-0/+182
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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