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* X86_DEBUGCTLMSR won't work on umlAl Viro2009-01-051-1/+1
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'cpus4096-for-linus-3' of ↵Linus Torvalds2009-01-0320-140/+155
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'cpus4096-for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (77 commits) x86: setup_per_cpu_areas() cleanup cpumask: fix compile error when CONFIG_NR_CPUS is not defined cpumask: use alloc_cpumask_var_node where appropriate cpumask: convert shared_cpu_map in acpi_processor* structs to cpumask_var_t x86: use cpumask_var_t in acpi/boot.c x86: cleanup some remaining usages of NR_CPUS where s/b nr_cpu_ids sched: put back some stack hog changes that were undone in kernel/sched.c x86: enable cpus display of kernel_max and offlined cpus ia64: cpumask fix for is_affinity_mask_valid() cpumask: convert RCU implementations, fix xtensa: define __fls mn10300: define __fls m32r: define __fls h8300: define __fls frv: define __fls cris: define __fls cpumask: CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS cpumask: zero extra bits in alloc_cpumask_var_node cpumask: replace for_each_cpu_mask_nr with for_each_cpu in kernel/time/ cpumask: convert mm/ ...
| * x86: setup_per_cpu_areas() cleanupCyrill Gorcunov2009-01-031-17/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup __alloc_bootmem and __alloc_bootmem_node do panic for us in case of fail so no need for additional checks here. Also lets use pr_*() macros for printing. Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * cpumask: use alloc_cpumask_var_node where appropriateMike Travis2009-01-032-5/+6
| | | | | | | | | | | | | | | | | | | | | | Impact: Reduce inter-node memory traffic. Reduces inter-node memory traffic (offloading the global system bus) by allocating referenced struct cpumasks on the same node as the referring struct. Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * cpumask: convert shared_cpu_map in acpi_processor* structs to cpumask_var_tRusty Russell2009-01-033-12/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: Reduce memory usage, use new API. This is part of an effort to reduce structure sizes for machines configured with large NR_CPUS. cpumask_t gets replaced by cpumask_var_t, which is either struct cpumask[1] (small NR_CPUS) or struct cpumask * (large NR_CPUS). (Changes to powernow-k* by <travis>.) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: use cpumask_var_t in acpi/boot.cRusty Russell2009-01-031-7/+22
| | | | | | | | | | | | | | | | | | | | Impact: reduce stack size, use new API. Replace cpumask_t with cpumask_var_t. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: cleanup some remaining usages of NR_CPUS where s/b nr_cpu_idsMike Travis2009-01-0312-79/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: Reduce future system panics due to cpumask operations using NR_CPUS Insure that code does not look at bits >= nr_cpu_ids as when cpumasks are allocated based on nr_cpu_ids, these extra bits will not be defined. Also some other minor updates: * change in to use cpu accessor function set_cpu_present() instead of directly accessing cpu_present_map w/cpu_clear() [arch/x86/kernel/reboot.c] * use cpumask_of() instead of &cpumask_of_cpu() [arch/x86/kernel/reboot.c] * optimize some cpu_mask_to_apicid_and functions. Signed-off-by: Mike Travis <travis@sgi.com> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * x86: enable cpus display of kernel_max and offlined cpusMike Travis2009-01-031-0/+2
| | | | | | | | | | | | | | | | | | | | | | Impact: enables /sys/devices/system/cpu/{kernel_max,offline} user interface By setting total_cpus, the drivers/base/cpu.c will display the values of kernel_max (NR_CPUS-1) and the offlined cpu map. Signed-off-by: Mike Travis <travis@sgi.com> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * Merge branch 'master' of ↵Mike Travis2009-01-03148-4041/+4560
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask into merge-rr-cpumask Conflicts: arch/x86/kernel/io_apic.c kernel/rcuclassic.c kernel/sched.c kernel/time/tick-sched.c Signed-off-by: Mike Travis <travis@sgi.com> [ mingo@elte.hu: backmerged typo fix for io_apic.c ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
| | * Merge branch 'master' of ↵Rusty Russell2008-12-3127-347/+682
| | |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: arch/x86/kernel/io_apic.c
| | * \ Merge branch 'master' of ↵Rusty Russell2008-12-30184-5166/+6194
| | |\ \ | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
| | * | | cpumask: cpu_coregroup_mask(): x86Rusty Russell2008-12-262-3/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: New API Like cpu_coregroup_map, but returns a (const) pointer. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Mike Travis <travis@sgi.com> Cc: Ingo Molnar <mingo@redhat.com>
| | * | | cpumask: x86: Introduce cpumask_of_{node,pcibus} to replace ↵Rusty Russell2008-12-263-18/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | {node,pcibus}_to_cpumask Impact: New APIs The old node_to_cpumask/node_to_pcibus returned a cpumask_t: these return a pointer to a struct cpumask. Part of removing cpumasks from the stack. Also makes __pcibus_to_node take a const pointer. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Ingo Molnar <mingo@elte.hu>
| * | | | x86: mark get_cpu_leaves() with __cpuinit annotationSergio Luis2008-12-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: fix section mismatch warning Commit b2bb85549134c005e997e5a7ed303bda6a1ae738 ("x86: Remove cpumask games in x86/kernel/cpu/intel_cacheinfo.c") introduced get_cpu_leaves(), which references __cpuinit cpuid4_cache_lookup(). Mark get_cpu_leaves() with a __cpuinit annotation. Signed-off-by: Sergio Luis <sergio@larces.uece.br> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | | Merge branch 'for-linus' of ↵Linus Torvalds2009-01-037-90/+672
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu: (89 commits) AMD IOMMU: remove now unnecessary #ifdefs AMD IOMMU: prealloc_protection_domains should be static kvm/iommu: fix compile warning AMD IOMMU: add statistics about total number of map requests AMD IOMMU: add statistics about allocated io memory AMD IOMMU: add stats counter for domain tlb flushes AMD IOMMU: add stats counter for single iommu domain tlb flushes AMD IOMMU: add stats counter for cross-page request AMD IOMMU: add stats counter for free_coherent requests AMD IOMMU: add stats counter for alloc_coherent requests AMD IOMMU: add stats counter for unmap_sg requests AMD IOMMU: add stats counter for map_sg requests AMD IOMMU: add stats counter for unmap_single requests AMD IOMMU: add stats counter for map_single requests AMD IOMMU: add stats counter for completion wait events AMD IOMMU: add init code for statistic collection AMD IOMMU: add necessary header defines for stats counting AMD IOMMU: add Kconfig entry for statistic collection code AMD IOMMU: use dev_name in iommu_enable function AMD IOMMU: use calc_devid in prealloc_protection_domains ...
| * | | | | AMD IOMMU: remove now unnecessary #ifdefsJoerg Roedel2009-01-031-11/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The #ifdef's are no longer necessary when the iommu-api and the amd iommu updates are merged together. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| * | | | | Merge branches 'iommu/api' and 'iommu/amd' into for-linusJoerg Roedel2009-01-034-87/+676
| |\ \ \ \ \
| | * | | | | AMD IOMMU: prealloc_protection_domains should be staticJaswinder Singh Rajput2009-01-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup, reduce kernel size a bit, avoid sparse warning Fixes sparse warning: arch/x86/kernel/amd_iommu.c:1299:6: warning: symbol 'prealloc_protection_domains' was not declared. Should it be static? Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add statistics about total number of map requestsJoerg Roedel2009-01-031-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: see total number of map requests in debugfs Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add statistics about allocated io memoryJoerg Roedel2009-01-031-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: see amount of allocated io memory in debugfs Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add stats counter for domain tlb flushesJoerg Roedel2009-01-031-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: see number of domain tlb flushes in debugfs Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add stats counter for single iommu domain tlb flushesJoerg Roedel2009-01-031-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: see number of single iommu domain tlb flushes in debugfs Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add stats counter for cross-page requestJoerg Roedel2009-01-031-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: see number of requests for more than one page in debugfs Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add stats counter for free_coherent requestsJoerg Roedel2009-01-031-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: see number of free_coherent requests in debugfs Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add stats counter for alloc_coherent requestsJoerg Roedel2009-01-031-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: see number of alloc_coherent requests in debugfs Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add stats counter for unmap_sg requestsJoerg Roedel2009-01-031-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: see number of unmap_sg requests in debugfs Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add stats counter for map_sg requestsJoerg Roedel2009-01-031-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: see number of map_sg requests in debugfs Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add stats counter for unmap_single requestsJoerg Roedel2009-01-031-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: see number of unmap_single requests in debugfs Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add stats counter for map_single requestsJoerg Roedel2009-01-031-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: see number of map_single requests in debugfs Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add stats counter for completion wait eventsJoerg Roedel2009-01-031-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: see number of completion wait events in debugfs Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add init code for statistic collectionJoerg Roedel2009-01-032-0/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: create a new debugfs directory Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add necessary header defines for stats countingJoerg Roedel2009-01-031-0/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: add defines to make iommu stats collection configurable Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add Kconfig entry for statistic collection codeJoerg Roedel2009-01-031-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: adds new Kconfig entry Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: use dev_name in iommu_enable functionJoerg Roedel2009-01-031-6/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: use calc_devid in prealloc_protection_domainsJoerg Roedel2009-01-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: convert amd_iommu_isolate to boolJoerg Roedel2009-01-032-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: cleanup Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: convert iommu->need_sync to boolJoerg Roedel2009-01-032-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: use bool instead of int for iommu->need_sync Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: use dev_name instead of self-build print_devidJoerg Roedel2009-01-032-14/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: use generic dev_name instead of own function Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: allocate a new protection for hotplugged devicesJoerg Roedel2009-01-031-0/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: also hotplug devices benefit from device isolation Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add a domain flag for default domainsJoerg Roedel2009-01-032-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: adds a new protection domain flag Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: register functions for the IOMMU APIJoerg Roedel2009-01-031-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add domain address lookup function for IOMMU APIJoerg Roedel2009-01-031-0/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: add a generic function to lockup addresses in protection domains Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add domain unmap function for IOMMU APIJoerg Roedel2009-01-031-0/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: add a generic function to unmap pages into protection domains Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add domain map function for IOMMU APIJoerg Roedel2009-01-031-0/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: add a generic function to map pages into protection domains Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add device attach function for IOMMU APIJoerg Roedel2009-01-031-0/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: add a generic function to attach devices to protection domains Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add device detach function for IOMMU APIJoerg Roedel2009-01-031-0/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: add a generic function to detach devices from protection domains Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add domain destroy function for IOMMU APIJoerg Roedel2009-01-031-0/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: add a generic function for releasing protection domains Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add domain init function for IOMMU APIJoerg Roedel2009-01-031-0/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: add a generic function for allocation protection domains Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add domain cleanup helper functionJoerg Roedel2009-01-031-0/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: add a function to remove all devices from a domain Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| | * | | | | AMD IOMMU: add device notifier callbackJoerg Roedel2009-01-031-2/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: inform IOMMU about state change of a device in the driver core Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>