- 26 7月, 2008 1 次提交
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由 Chris McDermott 提交于
x86 kernels on IBM Summit based systems will only online 1 CPU because the phys_cpu_present_map is not set up correctly. Patch below applied to 2.6.26-git10. Signed-off-by: NChris McDermott <lcm@linux.vnet.ibm.com> Tested-by: NTim Pepper <lnxninga@linux.vnet.ibm.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 18 7月, 2008 1 次提交
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由 Maciej W. Rozycki 提交于
Use alternatives to select the workaround for the 11AP Pentium erratum for the affected steppings on the fly rather than build time. Remove the X86_GOOD_APIC configuration option and replace all the calls to apic_write_around() with plain apic_write(), protecting accesses to the ESR as appropriate due to the 3AP Pentium erratum. Remove apic_read_around() and all its invocations altogether as not needed. Remove apic_write_atomic() and all its implementing backends. The use of ASM_OUTPUT2() is not strictly needed for input constraints, but I have used it for readability's sake. I had the feeling no one else was brave enough to do it, so I went ahead and here it is. Verified by checking the generated assembly and tested with both a 32-bit and a 64-bit configuration, also with the 11AP "feature" forced on and verified with gdb on /proc/kcore to work as expected (as an 11AP machines are quite hard to get hands on these days). Some script complained about the use of "volatile", but apic_write() needs it for the same reason and is effectively a replacement for writel(), so I have disregarded it. I am not sure what the policy wrt defconfig files is, they are generated and there is risk of a conflict resulting from an unrelated change, so I have left changes to them out. The option will get removed from them at the next run. Some testing with machines other than mine will be needed to avoid some stupid mistake, but despite its volume, the change is not really that intrusive, so I am fairly confident that because it works for me, it will everywhere. Signed-off-by: NMaciej W. Rozycki <macro@linux-mips.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 17 4月, 2008 2 次提交
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由 Alexey Starikovskiy 提交于
Signed-off-by: NAlexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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This mapping already exists in x86_64, just provide it for i386 Signed-off-by: NGlauber Costa <gcosta@redhat.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 30 1月, 2008 1 次提交
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由 Thomas Gleixner 提交于
Bring the mpspec variants into sync to prepare merging and paravirt support. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 11 10月, 2007 1 次提交
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由 Thomas Gleixner 提交于
Move the headers to include/asm-x86 and fixup the header install make rules Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 03 5月, 2007 1 次提交
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由 Ingo Molnar 提交于
Default to physical mode on hotplug CPU kernels. Furher simplify and clean up the APIC initialization code. Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NAndi Kleen <ak@suse.de> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Andi Kleen <ak@suse.de> Cc: "Li, Shaohua" <shaohua.li@intel.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: NAndrew Morton <akpm@osdl.org>
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- 29 11月, 2006 1 次提交
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由 Andi Kleen 提交于
Fix arch/i386/mach-generic/built-in.o: In function `apicid_to_node': summit.c:(.text+0x2f): undefined reference to `apicid_2_node' with CONFIG_GENERICH_ARCH and !CONFIG_SMP Signed-off-by: NAndi Kleen <ak@suse.de>
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- 04 10月, 2006 1 次提交
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由 Keith Mannthey 提交于
This allows numaq to properly align cpus to their given node during boot. Pass logical apicid to apicid_to_node and allow the summit sub-arch to use physical apicid (hard_smp_processor_id()). Tested against numaq and summit based systems with no issues. Signed-off-by: NKeith Mannthey <kmannth@us.ibm.com> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 30 9月, 2006 1 次提交
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由 keith mannthey 提交于
Convert the i386 summit subarch apicid_to_node to use node information provided by the SRAT. It was discussed a little on LKML a few weeks ago and was seen as an acceptable fix. The current way of obtaining the nodeid static inline int apicid_to_node(int logical_apicid) { return logical_apicid >> 5; } is just not correct for all summit systems/bios. Assuming the apicid matches the Linux node number require a leap of faith that the bios mapped out the apicids a set way. Modern summit HW (IBM x460) does not layout its bios in the manner for various reasons and is unable to boot i386 numa. The best way to get the correct apicid to node information is from the SRAT table during boot. It lays out what apicid belongs to what node. I use this information to create a table for use at run time. Signed-off-by: NKeith Mannthey <kmannth@us.ibm.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 26 9月, 2006 1 次提交
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由 Andi Kleen 提交于
There are some machines around (large xSeries or Unisys ES7000) that need physical IO-APIC destination mode to access all of their IO devices. This currently doesn't work in UP kernels as used in distribution installers. This patch allows to compile even UP kernels as GENERICARCH which allows to use physical or clustered APIC mode. Signed-off-by: NAndi Kleen <ak@suse.de>
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- 26 4月, 2006 1 次提交
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由 David Woodhouse 提交于
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 24 6月, 2005 1 次提交
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由 Natalie Protasevich 提交于
This patch is per Andi's request to remove NO_IOAPIC_CHECK from genapic and use heuristics to prevent unique I/O APIC ID check for systems that don't need it. The patch disables unique I/O APIC ID check for Xeon-based and other platforms that don't use serial APIC bus for interrupt delivery. Andi stated that AMD systems don't need unique IO_APIC_IDs either. Signed-off-by: NNatalie Protasevich <Natalie.Protasevich@unisys.com> Cc: Andi Kleen <ak@muc.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 17 4月, 2005 1 次提交
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由 Linus Torvalds 提交于
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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