Commit Graph

200 Commits

Author SHA1 Message Date
Yinghai Lu
2b6163bf57 x86: remove update_apic from x86_quirks
Impact: cleanup

x86_quirks->update_apic() calling looks crazy. so try to remove it:

 1. every apic take wakeup_cpu member directly
 2. separate es7000_apic to es7000_apic_cluster
 3. use uv_wakeup_cpu directly

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-26 06:32:25 +01:00
Ingo Molnar
ab6fb7c0b0 x86, apic: remove ->store_NMI_vector()
Impact: cleanup

It's not used by anything anymore.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-17 17:53:56 +01:00
Ingo Molnar
e641f5f525 x86, apic: remove duplicate asm/apic.h inclusions
Impact: cleanup

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-17 17:52:44 +01:00
Ingo Molnar
7b6aa335ca x86, apic: remove genapic.h
Impact: cleanup

Remove genapic.h and remove all references to it.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-17 17:52:44 +01:00
Yinghai Lu
06cd9a7dc8 x86: add x2apic config
Impact: cleanup

so could deselect x2apic
and INTR_REMAP will select x2apic

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-17 12:22:20 +01:00
Yinghai Lu
88d0f550d7 x86: make 32bit to call enable_IO_APIC early like 64bit
Impact: cleanup

So we remove some #ifdefs.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-15 13:23:46 +01:00
Ingo Molnar
eca217b36e Merge branch 'x86/paravirt' into x86/apic
Conflicts:
	arch/x86/mach-voyager/voyager_smp.c
2009-02-09 12:16:59 +01:00
Ingo Molnar
65a4e574d2 smp, generic: introduce arch_disable_smp_support() instead of disable_ioapic_setup()
Impact: cleanup

disable_ioapic_setup() in init/main.c is ugly as the function is
x86-specific. The #ifdef inline prototype there is ugly too.

Replace it with a generic arch_disable_smp_support() function - which
has a weak alias for non-x86 architectures and for non-ioapic x86 builds.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-05 22:27:54 +01:00
Brian Gerst
552be871e6 x86: pass in cpu number to switch_to_new_gdt()
Impact: cleanup, prepare for xen boot fix.

Xen needs to call this function very early to setup the GDT and
per-cpu segments.  Remove the call to smp_processor_id() and just
pass in the cpu number.

Signed-off-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2009-01-31 14:28:50 +09:00
Ingo Molnar
8f47e16348 x86: update copyrights
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-31 04:21:18 +01:00
Yinghai Lu
26f7ef14a7 x86: don't treat bigsmp as non-standard
just like 64 bit switch from flat logical APIC messages to
flat physical mode automatically.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-30 15:24:37 +01:00
Yinghai Lu
1ff2f20de3 x86: fix compiling with 64bit with def_to_bigsmp
only need to do cut off with 32bit

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-30 15:21:23 +01:00
Yinghai Lu
4272ebfbef x86: allow more than 8 cpus to be used on 32-bit
X86_PC is the only remaining 'sub' architecture, so we dont need
it anymore.

This also cleans up a few spurious references to X86_PC in the
driver space - those certainly should be X86.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-30 00:20:22 +01:00
Ingo Molnar
e0c7ae376a x86: rename X86_GENERICARCH to X86_32_NON_STANDARD
X86_GENERICARCH is a misnomer - it contains non-PC 32-bit architectures
that are not included in the default build.

Rename it to X86_32_NON_STANDARD.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-29 14:17:20 +01:00
Ingo Molnar
c0b5842a45 x86: generalize boot_cpu_id
x86/Voyager can boot on non-zero processors. While that can probably
be fixed by properly remapping the physical CPU IDs, keep boot_cpu_id
for now for easier transition - and expand it to all of x86.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-29 14:17:01 +01:00
Ingo Molnar
1164dd0099 x86: move mach-default/*.h files to asm/
We are getting rid of subarchitecture support - move the hook files
to asm/. (These are now stale and should be replaced with more explicit
runtime mechanisms - but the transition is simpler this way.)

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-29 14:16:51 +01:00
Ingo Molnar
1dcdd3d15e x86: remove mach_apic.h
Spread mach_apic.h definitions into genapic.h. (with some knock-on effects
on smp.h and apic.h.)

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-29 14:16:42 +01:00
Ingo Molnar
328386d7ab x86, smp: refactor ->wake_cpu
- remove macro wrappers

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-28 23:20:37 +01:00
Ingo Molnar
0939e4fd35 x86, smp: eliminate asm/mach-default/mach_wakecpu.h
Spread mach_wakecpu.h's definitions into apic.h and genapic.h
and remove mach_wakecpu.h.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-28 23:20:35 +01:00
Ingo Molnar
25dc004903 x86, smp: refactor ->inquire_remote_apic() methods
Nothing exciting - a few subarches dont want APIC remote reads to
be performed - the others are content with the default method.

 - extend the generic code to handle NULL methods

 - clear out dummy methods and replace them with NULL

 - clean up: remove wrapper macros, etc.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-28 23:20:34 +01:00
Ingo Molnar
7bd06ec63a x86, smp: refactor ->store/restore_NMI_vector() methods
Only NUMAQ does something substantial here, because it initializes
via NMIs (not via INIT as standard SMP startup) - so it needs to
store and restore the NMI vector.

 - extend the generic code to handle NULL methods

 - clear out dummy methods and replace them with NULL

 - clean up: remove wrapper macros, etc.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-28 23:20:33 +01:00
Ingo Molnar
333344d943 x86, smp: refactor ->smp_callin_clear_local_apic() methods
Only NUMAQ does something substantial here, because it initializes
via NMIs (not via INIT as standard SMP startup) - so it needs to
reset the APIC.

 - extend the generic code to handle NULL methods

 - clear out dummy methods and replace them with NULL

 - clean up: remove wrapper macros, etc.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-28 23:20:33 +01:00
Ingo Molnar
a965936643 x86, smp: refactor ->wait_for_init_deassert()
- spread out the namespace on a per APIC driver basis

 - handle a NULL ->wait_for_init_deassert() as a 'dont wait' default method

 - remove NUMAQ and Summit handlers

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-28 23:20:32 +01:00
Ingo Molnar
a27a621001 x86: refactor ->check_phys_apicid_present() subarch methods
- spread out the namespace to per driver methods

 - extend it to 64-bit as well so that we can use
   apic->check_phys_apicid_present() unconditionally

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-28 23:20:25 +01:00
Ingo Molnar
d83093b504 x86: refactor ->setup_portio_remap() subarch methods
Only NUMAQ has a real ->setup_portio_remap() method, the other
subarchitectures define it but keep it empty.

So mark the vector as NULL, extend the generic code to handle
NULL -setup_portio_remap() entries and remove all the empty
handlers.

Also move the NUMAQ method from the header file into the
 apic driver .c file.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-28 23:20:25 +01:00
Ingo Molnar
a21769a446 x86, apic: clean up ->cpu_present_to_apicid()
- separate the namespace

 - remove macros

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-28 23:20:24 +01:00
Ingo Molnar
3f57a318c3 x86, apic: clean up ->apicid_to_node()
- separate the namespace

 - remove macros

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-28 23:20:23 +01:00
Ingo Molnar
72ce016583 x86, apic: clean up ->setup_apic_routing()
- separate the namespace

 - remove macros

 - remove namespace clash on 64-bit

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-28 23:20:22 +01:00
Ingo Molnar
bdb1a9b62f x86, apic: rename genapic::apic_destination_logical to genapic::dest_logical
This field name was unreasonably long - shorten it.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-28 23:20:19 +01:00
Ingo Molnar
0b06e734bf x86: clean up the APIC_DEST_LOGICAL logic
Impact: cleanup

The bigsmp and es7000 subarchitectures un-defined APIC_DEST_LOGICAL in
a rather nasty way by re-defining it to zero. That is infinitely
fragile and makes it very hard to see what to code really does in
a given context. The very same constant has different meanings and
values - depending on which subarch is enabled.

Untangle this mess by never undefining the constant, but instead
propagating the right values into the genapic driver templates.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-28 23:20:18 +01:00
Brian Gerst
b2d2f4312b x86: initialize per-cpu GDT segment in per-cpu setup
Impact: cleanup

Rename init_gdt() to setup_percpu_segment(), and move it to
setup_percpu.c.

Signed-off-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2009-01-27 12:56:48 +09:00
Tejun Heo
bdbcdd4888 x86: uv cleanup
Impact: cleanup

Make the following uv related cleanups.

* collect visible uv related definitions and interfaces into uv/uv.h
  and use it.  this cleans up the messy situation where on 64bit, uv
  is defined properly, on 32bit generic it's dummy and on the rest
  undefined.  after this clean up, uv is defined on 64 and dummy on
  32.

* update uv_flush_tlb_others() such that it takes cpumask of
  to-be-flushed cpus as argument, instead of that minus self, and
  returns yet-to-be-flushed cpumask, instead of modifying the passed
  in parameter.  this interface change will ease dummy implementation
  of uv_flush_tlb_others() and makes uv tlb flush related stuff
  defined in tlb_uv proper.

Signed-off-by: Tejun Heo <tj@kernel.org>
2009-01-21 17:26:06 +09:00
Brian Gerst
9af45651f1 x86-64: Move kernelstack from PDA to per-cpu.
Also clean up PER_CPU_VAR usage in xen-asm_64.S

tj: * remove now unused stack_thread_info()
    * s/kernelstack/kernel_stack/
    * added FIXME comment in xen-asm_64.S

Signed-off-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2009-01-19 00:38:58 +09:00
Brian Gerst
c6f5e0acd5 x86-64: Move current task from PDA to per-cpu and consolidate with 32-bit.
Signed-off-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2009-01-19 00:38:58 +09:00
Tejun Heo
004aa322f8 x86: misc clean up after the percpu update
Do the following cleanups:

* kill x86_64_init_pda() which now is equivalent to pda_init()

* use per_cpu_offset() instead of cpu_pda() when initializing
  initial_gs

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-16 14:20:26 +01:00
Tejun Heo
1a51e3a0ae x86: fold pda into percpu area on SMP
[ Based on original patch from Christoph Lameter and Mike Travis. ]

Currently pdas and percpu areas are allocated separately.  %gs points
to local pda and percpu area can be reached using pda->data_offset.
This patch folds pda into percpu area.

Due to strange gcc requirement, pda needs to be at the beginning of
the percpu area so that pda->stack_canary is at %gs:40.  To achieve
this, a new percpu output section macro - PERCPU_VADDR_PREALLOC() - is
added and used to reserve pda sized chunk at the start of the percpu
area.

After this change, for boot cpu, %gs first points to pda in the
data.init area and later during setup_per_cpu_areas() gets updated to
point to the actual pda.  This means that setup_per_cpu_areas() need
to reload %gs for CPU0 while clearing pda area for other cpus as cpu0
already has modified it when control reaches setup_per_cpu_areas().

This patch also removes now unnecessary get_local_pda() and its call
sites.

A lot of this patch is taken from Mike Travis' "x86_64: Fold pda into
per cpu area" patch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-16 14:19:46 +01:00
Tejun Heo
f32ff5388d x86: load pointer to pda into %gs while brining up a CPU
[ Based on original patch from Christoph Lameter and Mike Travis. ]

CPU startup code in head_64.S loaded address of a zero page into %gs
for temporary use till pda is loaded but address to the actual pda is
available at the point.  Load the real address directly instead.

This will help unifying percpu and pda handling later on.

This patch is mostly taken from Mike Travis' "x86_64: Fold pda into
per cpu area" patch.

Signed-off-by: Tejun Heo <tj@kernel.org>
2009-01-16 14:19:26 +01:00
Ingo Molnar
7f268f4352 Merge branches 'cpus4096', 'x86/cleanups' and 'x86/urgent' into x86/percpu 2009-01-15 13:18:57 +01:00
Jan Beulich
f11826385b x86: fully honor "nolapic"
Impact: widen the effect of the 'nolapic' boot parameter

"nolapic" should not only suppress SMP and use of the LAPIC, but it
also ought to have the effect of disabling all IO-APIC related activity
as well as PCI MSI and HT-IRQs.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-15 12:04:40 +01:00
Jaswinder Singh Rajput
fb8fd077fb x86: smp.h move cpu_callout_mask and cpu_callout_map declartion to cpumask.h
Impact: cleanup

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-10 23:57:20 +01:00
Jaswinder Singh Rajput
068790334c x86: smp.h move cpu_callin_mask and cpu_callin_map declartion to cpumask.h
Impact: cleanup

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-10 23:57:09 +01:00
Ingo Molnar
1de8cd3cb9 Merge branch 'linus' into x86/cleanups 2009-01-10 23:56:42 +01:00
Linus Torvalds
3d14bdad40 Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (36 commits)
  x86: fix section mismatch warnings in mcheck/mce_amd_64.c
  x86: offer frame pointers in all build modes
  x86: remove duplicated #include's
  x86: k8 numa register active regions later
  x86: update Alan Cox's email addresses
  x86: rename all fields of mpc_table mpc_X to X
  x86: rename all fields of mpc_oemtable oem_X to X
  x86: rename all fields of mpc_bus mpc_X to X
  x86: rename all fields of mpc_cpu mpc_X to X
  x86: rename all fields of mpc_intsrc mpc_X to X
  x86: rename all fields of mpc_lintsrc mpc_X to X
  x86: rename all fields of mpc_iopic mpc_X to X
  x86: irqinit_64.c init_ISA_irqs should be static
  Documentation/x86/boot.txt: payload length was changed to payload_length
  x86: setup_percpu.c fix style problems
  x86: irqinit_64.c fix style problems
  x86: irqinit_32.c fix style problems
  x86: i8259.c fix style problems
  x86: irq_32.c fix style problems
  x86: ioport.c fix style problems
  ...
2009-01-10 06:13:09 -08:00
Jaswinder Singh Rajput
6e5385d44b x86: smp.h move prefill_possible_map declartion to cpu.h
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>
2009-01-07 13:51:21 +01:00
Ingo Molnar
0936912274 Merge branches 'x86/cleanups', 'x86/mpparse', 'x86/numa' and 'x86/uv' into x86/urgent 2009-01-06 17:39:52 +01:00
Alan Cox
87c6fe2618 x86: update Alan Cox's email addresses
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-05 15:19:16 +01:00
Mike Travis
c2d1cec1c7 x86: cleanup remaining cpumask_t ops in smpboot code
Impact: use new cpumask API to reduce memory and stack usage

Allocate the following local cpumasks based on the number of cpus that
are present.  References will use new cpumask API.  (Currently only
modified for x86_64, x86_32 continues to use the *_map variants.)

    cpu_callin_mask
    cpu_callout_mask
    cpu_initialized_mask
    cpu_sibling_setup_mask

Provide the following accessor functions:

    struct cpumask *cpu_sibling_mask(int cpu)
    struct cpumask *cpu_core_mask(int cpu)

Other changes are when setting or clearing the cpu online, possible
or present maps, use the accessor 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>
2009-01-04 15:39:26 +01:00
Mike Travis
9628937d5b x86: cleanup some remaining usages of NR_CPUS where s/b nr_cpu_ids
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>
2009-01-03 19:00:55 +01:00
Mike Travis
730cf27246 x86: enable cpus display of kernel_max and offlined cpus
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>
2009-01-03 18:59:47 +01:00
Mike Travis
7eb1955336 Merge branch 'master' of 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>
2009-01-03 18:53:31 +01:00