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Impact: cleanup
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Impact: cleanup, moving NON-SMP stuff from smp.h
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Impact: cleanup, moving NON-SMP stuff from smp.h
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Impact: cleanup
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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x86/urgent
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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/
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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>
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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>
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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
arch/x86/kernel/io_apic.c
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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
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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>
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{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>
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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
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Impact: create a new debugfs directory
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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Impact: add defines to make iommu stats collection configurable
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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Impact: cleanup
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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Impact: use bool instead of int for iommu->need_sync
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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Impact: use generic dev_name instead of own function
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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Impact: adds a new protection domain flag
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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Impact: know how many devices are assigned to a domain
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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Imapct: add a new struct member to 'struct protection_domain'
When using protection domains for dma_ops and KVM its better to know for
which subsystem it was allocated. Add a flags member to struct
protection domain for that purpose.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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Impact: cleanup, solve 80 columns wrap problems
It would be cleaner to rename all the mpc->mpc_X fields to
mpc->X - that alone would give 4 characters per usage site.
(we already know that it's an 'mpc' entity -
no need to duplicate that in the field too)
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Impact: cleanup, solve 80 columns wrap problems
It would be cleaner to rename all the mpc->oem_X fields to
mpc->X - that alone would give 4 characters per usage site.
(we already know that it's an 'oem' entity -
no need to duplicate that in the field too)
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Impact: cleanup, solve 80 columns wrap problems
It would be cleaner to rename all the mpc->mpc_X fields to
mpc->X - that alone would give 4 characters per usage site.
(we already know that it's an 'mpc' entity -
no need to duplicate that in the field too)
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Impact: cleanup, solve 80 columns wrap problems
It would be cleaner to rename all the mpc->mpc_X fields to
mpc->X - that alone would give 4 characters per usage site.
(we already know that it's an 'mpc' entity -
no need to duplicate that in the field too)
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Impact: cleanup, solve 80 columns wrap problems
It would be cleaner to rename all the mpc->mpc_X fields to
mpc->X - that alone would give 4 characters per usage site.
(we already know that it's an 'mpc' entity -
no need to duplicate that in the field too)
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Impact: cleanup, solve 80 columns wrap problems
It would be cleaner to rename all the mpc->mpc_X fields to
mpc->X - that alone would give 4 characters per usage site.
(we already know that it's an 'mpc' entity -
no need to duplicate that in the field too)
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Impact: cleanup, solve 80 columns wrap problems
It would be cleaner to rename all the mpc->mpc_X fields to
mpc->X - that alone would give 4 characters per usage site.
(we already know that it's an 'mpc' entity -
no need to duplicate that in the field too)
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Impact: cleanup, solve 80 columns wrap problems
mpc_config_oemtable should be renamed to mpc_oemtable.
The reason: the 'c' in MPC already means 'config' -
no need to repeat that in the type name.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Impact: cleanup, solve 80 columns wrap problems
mpc_config_lintsrc should be renamed to mpc_lintsrc.
The reason: the 'c' in MPC already means 'config' -
no need to repeat that in the type name.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Impact: cleanup, solve 80 columns wrap problems
mpc_config_intsrc should be renamed to mpc_intsrc.
The reason: the 'c' in MPC already means 'config' -
no need to repeat that in the type name.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Impact: cleanup, solve 80 columns wrap problems
mpc_config_ioapic should be renamed to mpc_ioapic.
The reason: the 'c' in MPC already means 'config' -
no need to repeat that in the type name.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Impact: cleanup, solve 80 columns wrap problems
mpc_config_processor should be renamed to mpc_cpu.
The reason: the 'c' in MPC already means 'config' -
no need to repeat that in the type name.
Plus 'processor' is a lot longer than 'cpu' - so we try to use 'cpu' in all
type names, as much as possible.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Impact: cleanup, solve 80 columns wrap problems
mpc_config_bus should be renamed to mpc_bus.
The reason: the 'c' in MPC already means 'config' -
no need to repeat that in the type name.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Impact: cleanup, solve 80 columns wrap problems
mp_config_table should be renamed to mpc_table.
The reason: the 'c' in MPC already means 'config' -
no need to repeat that in the type name.
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Conflicts:
arch/x86/kernel/reboot.c
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'cpus4096-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (66 commits)
x86: export vector_used_by_percpu_irq
x86: use logical apicid in x2apic_cluster's x2apic_cpu_mask_to_apicid_and()
sched: nominate preferred wakeup cpu, fix
x86: fix lguest used_vectors breakage, -v2
x86: fix warning in arch/x86/kernel/io_apic.c
sched: fix warning in kernel/sched.c
sched: move test_sd_parent() to an SMP section of sched.h
sched: add SD_BALANCE_NEWIDLE at MC and CPU level for sched_mc>0
sched: activate active load balancing in new idle cpus
sched: bias task wakeups to preferred semi-idle packages
sched: nominate preferred wakeup cpu
sched: favour lower logical cpu number for sched_mc balance
sched: framework for sched_mc/smt_power_savings=N
sched: convert BALANCE_FOR_xx_POWER to inline functions
x86: use possible_cpus=NUM to extend the possible cpus allowed
x86: fix cpu_mask_to_apicid_and to include cpu_online_mask
x86: update io_apic.c to the new cpumask code
x86: Introduce topology_core_cpumask()/topology_thread_cpumask()
x86: xen: use smp_call_function_many()
x86: use work_on_cpu in x86/kernel/cpu/mcheck/mce_amd_64.c
...
Fixed up trivial conflict in kernel/time/tick-sched.c manually
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Impact: fix lguest, clean up
32-bit lguest used used_vectors to record vectors, but that model of
allocating vectors changed and got broken, after we changed vector
allocation to a per_cpu array.
Try enable that for 64bit, and the array is used for all vectors that
are not managed by vector_irq per_cpu array.
Also kill system_vectors[], that is now a duplication of the
used_vectors bitmap.
[ merged in cpus4096 due to io_apic.c cpumask changes. ]
[ -v2, fix build failure ]
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Impact: fix potential APIC crash
In determining the destination apicid, there are usually three cpumasks
that are considered: the incoming cpumask arg, cfg->domain and the
cpu_online_mask. Since we are just introducing the cpu_mask_to_apicid_and
function, make sure it includes the cpu_online_mask in it's evaluation.
[Added with this patch.]
There are two io_apic.c functions that did not previously use the
cpu_online_mask: setup_IO_APIC_irq and msi_compose_msg. Both of these
simply used cpu_mask_to_apicid(cfg->domain & TARGET_CPUS), and all but
one arch (NUMAQ[*]) returns only online cpus in the TARGET_CPUS mask,
so the behavior is identical for all cases.
[*: NUMAQ bug?]
Note that alloc_cpumask_var is only used for the 32-bit cases where
it's highly likely that the cpumask set size will be small and therefore
CPUMASK_OFFSTACK=n. But if that's not the case, failing the allocate
will cause the same return value as the default.
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Conflicts:
arch/x86/kernel/crash.c
Merged for semantic conflict:
arch/x86/kernel/reboot.c
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git://git.kernel.org/pub/scm/linux/kernel/git/travis/linux-2.6-cpus4096-for-ingo into cpus4096
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Impact: new API
The old topology_core_siblings() and topology_thread_siblings() return
a cpumask_t; these new ones return a (const) struct cpumask *.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
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This patch simply changes cpumask_t to struct cpumask and similar
trivial modernizations.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
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Impact: cleanup, remove on-stack cpumask.
The "map" arg is always cpu_online_mask. Importantly, set_affinity
always ands the argument with cpu_online_mask anyway, so we don't need
to do it in fixup_irqs(), avoiding a temporary.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
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Impact: use updated APIs
Various API updates for x86:add-cpu_mask_to_apicid_and
(Note: separate because previous patch has been "backported" to 2.6.27.)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
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Impact: new API
Add a helper function that takes two cpumask's, and's them and then
returns the apicid of the result. This removes a need in io_apic.c
that uses a temporary cpumask to hold (mask & cfg->domain).
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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Impact: cleanup, change parameter passing
* Change genapic interfaces to accept cpumask_t pointers where possible.
* Modify external callers to use cpumask_t pointers in function calls.
* Create new send_IPI_mask_allbutself which is the same as the
send_IPI_mask functions but removes smp_processor_id() from list.
This removes another common need for a temporary cpumask_t variable.
* Functions that used a temp cpumask_t variable for:
cpumask_t allbutme = cpu_online_map;
cpu_clear(smp_processor_id(), allbutme);
if (!cpus_empty(allbutme))
...
become:
if (!cpus_equal(cpu_online_map, cpumask_of_cpu(cpu)))
...
* Other minor code optimizations (like using cpus_clear instead of
CPU_MASK_NONE, etc.)
Applies to linux-2.6.tip/master.
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Ingo Molnar <mingo@elte.hu>
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