Commit Graph

23413 Commits

Author SHA1 Message Date
Jeremy Fitzhardinge 491eccb721 x86/paravirt: define PARA_INDIRECT for indirect asm calls
On 32-bit it's best to use a %cs: prefix to access memory where the
other segments may not bet set up properly yet.  On 64-bit it's best
to use a rip-relative addressing mode.  Define PARA_INDIRECT() to
abstract this and generate the proper addressing mode in each case.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 13:11:04 +02:00
Jeremy Fitzhardinge 97349135fe x86/paravirt: add debugging for missing operations
Rather than just jumping to 0 when there's a missing operation, raise a BUG.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 13:11:03 +02:00
Jeremy Fitzhardinge eba0045ff8 x86/paravirt: add a pgd_alloc/free hooks
Add hooks which are called at pgd_alloc/free time.  The pgd_alloc hook
may return an error code, which if non-zero, causes the pgd allocation
to be failed.  The hooks may be used to allocate/free auxillary
per-pgd information.

also fix:

> * Ingo Molnar <mingo@elte.hu> wrote:
>
>  include/asm/pgalloc.h: In function ‘paravirt_pgd_free':
>  include/asm/pgalloc.h:14: error: parameter name omitted
>  arch/x86/kernel/entry_64.S: In file included from
>  arch/x86/kernel/traps_64.c:51:include/asm/pgalloc.h: In function ‘paravirt_pgd_free':
>  include/asm/pgalloc.h:14: error: parameter name omitted

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 13:11:01 +02:00
Jeremy Fitzhardinge 15878c0b21 x86, 64-bit: add sync_cmpxchg
Add sync_cmpxchg to match 32-bit's sync_cmpxchg.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 13:10:58 +02:00
Jeremy Fitzhardinge 102e3b8d3f x86, 64-bit: add prototype for x86_64_start_kernel()
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 13:10:58 +02:00
Yinghai Lu 29f784e369 x86: change some functions in setup.c to static
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 13:10:54 +02:00
Alok Kataria 3381959da5 x86: cleanup e820_setup_gap(), add e820_search_gap(), v2
This is a preparatory patch for the next patch in series.
Moves some code from e820_setup_gap to a new function e820_search_gap.
This patch is a part of a bug fix where we walk the ACPI table to calculate
a gap for PCI optional devices.

v1->v2: Patch on top of tip/master.
	Fixes a bug introduced in the last patch about the typeof "last".
	Also the new function e820_search_gap now returns if we found a gap in
	e820_map.

Signed-off-by: Alok N Kataria <akataria@vmware.com>
Cc: lenb@kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 13:10:39 +02:00
Yinghai Lu c987d12f84 x86: remove end_pfn in 64bit
and use max_pfn directly.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 13:10:38 +02:00
Yinghai Lu f47f9d538e x86: numa 32 using apicid_2_node to get node for logical_apicid
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 13:10:37 +02:00
Yinghai Lu 3a58a2a6c8 x86: introduce init_memory_mapping for 32bit #3
move kva related early backto initmem_init for numa32

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 13:10:33 +02:00
Yinghai Lu cfb0e53b05 x86: introduce init_memory_mapping for 32bit #2
moving relocate_initrd early

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 13:10:32 +02:00
Yinghai Lu 4e29684c40 x86: introduce init_memory_mapping for 32bit #1
... so can we use mem below max_low_pfn earlier.

this allows us to move several functions more early instead of waiting
to after paging_init.

That includes moving relocate_initrd() earlier in the bootup, and kva
related early setup done in initmem_init. (in followup patches)

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 13:10:32 +02:00
Jeremy Fitzhardinge c3c2fee384 x86: unify mmu_context.h
Some amount of asm-x86/mmu_context.h can be unified, including
activate_mm paravirt hook.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 13:10:31 +02:00
Jeremy Fitzhardinge fb15a9b304 x86: unify pgd_index
pgd_index is common for 32 and 64-bit, so move it to a common place.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 13:10:30 +02:00
Eduardo Habkost e7a9b0b3c3 x86, 64-bit: use __pgd() on mk_kernel_pgd()
Use __pgd() on mk_kernel_pgd()

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 13:10:29 +02:00
Jeremy Fitzhardinge 43adfc26de x86, 64-bit: add gate_offset() and gate_segment() macros
For calculating the offset from struct gate_struct fields.

[ gate_offset and gate_segment were broken for 32-bit. ]

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 13:10:28 +02:00
Jeremy Fitzhardinge 4583ed514e x86, 64-bit: unify early_ioremap
The 32-bit early_ioremap will work equally well for 64-bit, so just use it.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 13:10:28 +02:00
Jeremy Fitzhardinge af2b1c609f x86: add memory barriers to wrmsr
wrmsr is a special instruction which can have arbitrary system-wide
effects.  We don't want the compiler to reorder it with respect to
memory operations, so make it a memory barrier.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 13:10:24 +02:00
Jeremy Fitzhardinge d338c73c39 x86: add memory clobber to save/loadsegment
Add "memory" clobbers to savesegment and loadsegment, since they can
affect memory accesses and we never want the compiler to reorder them
with respect to memory references.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 13:10:23 +02:00
Jeremy Fitzhardinge bea41808ef x86: asm-x86/pgtable.h: fix compiler warning
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 13:10:23 +02:00
Cyrill Gorcunov 4de0043617 x86: nmi_watchdog - introduce nmi_watchdog_active() helper
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: macro@linux-mips.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:51:42 +02:00
Cyrill Gorcunov c376d45432 x86: nmi_watchdog - use NMI_NONE by default
There is no need to keep NMI_DISABLED definition and use it
for nmi_watchdog by default. Here is the point why:

- IO-APIC and APIC chips are programmed for nmi_watchdog support at very
  early stage of kernel booting and not having nmi_watchdog specified as
  boot option lead only to nmi_watchdog becomes to NMI_NONE anyway
- enable nmi_watchdog thru /proc/sys/kernel/nmi if it was not specified at
  boot is not possible too (even having this sysfs entry)

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: macro@linux-mips.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:51:41 +02:00
Paul Jackson c4ba1320b7 x86 boot: allow overlapping early reserve memory ranges
Add support for overlapping early memory reservations.

In general, they still can't overlap, and will panic
with "Overlapping early reservations" if they do overlap.

But if a memory range is reserved with the new call:
    reserve_early_overlap_ok()
rather than with the usual call:
    reserve_early()
then subsequent early reservations are allowed to overlap.

This new reserve_early_overlap_ok() call is only used in one
place so far, which is the "BIOS reserved" reservation for the
the EBDA region, which out of Paranoia reserves more than what
the BIOS might have specified, and which thus might overlap with
another legitimate early memory reservation (such as, perhaps,
the EFI memmap.)

Signed-off-by: Paul Jackson <pj@sgi.com>
Cc: "Yinghai Lu" <yhlu.kernel@gmail.com>
Cc: "Jack Steiner" <steiner@sgi.com>
Cc: "Mike Travis" <travis@sgi.com>
Cc: "Huang
Cc: Ying" <ying.huang@intel.com>
Cc: "Andi Kleen" <andi@firstfloor.org>
Cc: "Andrew Morton" <akpm@linux-foundation.org>
Cc: Paul Jackson <pj@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:51:26 +02:00
Yinghai Lu 11cd0bc140 x86: move some func calling from setup_arch to paging_init
those function depend on paging setup pgtable, so they could access
the ram in bootmem region but just get mapped.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:50:24 +02:00
Yinghai Lu 2ec65f8b89 x86: clean up using max_low_pfn on 32-bit
so that max_low_pfn is not changed after it is set.
so we can move that early and out of initmem_init.

could call find_low_pfn_range just after max_pfn is set.

also could move reserve_initrd out of setup_bootmem_allocator

so 32bit is more like 64bit.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:50:20 +02:00
Yinghai Lu 225c37d71b x86: introduce reserve_initrd
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:50:16 +02:00
Yinghai Lu b2ac82a090 x86: introduce initmem_init for 32 bit
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:50:15 +02:00
Yinghai Lu 1f75d7e32e x86: introduce initmem_init for 64 bit
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:50:14 +02:00
Yinghai Lu ce97c40e28 x86: move reserve_standard_io_resource to setup.c
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:50:12 +02:00
Yinghai Lu a9c1182fbd x86: seperate probe_roms into another file
it is only needed for 32bit

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:50:05 +02:00
Yinghai Lu 7a1fd9866c x86: add e820_remove_range
... so could add real hole in e820

agp check is using request_mem_region, and could fail if e820 is reserved...

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:48:37 +02:00
Yinghai Lu 9a25034759 x86: change identify_cpu to static
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:48:35 +02:00
Yinghai Lu f580366f77 x86: seperate funcs from setup_64 to cpu common_64.c
Signed-off-by: Yinghai Lu <yhlu.kernel@mail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:48:34 +02:00
Yinghai Lu 3c999f1426 x86: check command line when CONFIG_X86_MPPARSE is not set, v2
if acpi=off, acpi=noirq and pci=noacpi, we need to disable apic.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: "Maciej W. Rozycki" <macro@linux-mips.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:48:31 +02:00
Yinghai Lu d52d53b8a5 RFC x86: try to remove arch_get_ram_range
want to remove arch_get_ram_range, and use early_node_map instead.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:48:27 +02:00
Glauber Costa 1481a3dd42 x86: move cpu_exit_clear to process_32.c
Take it out of smpboot.c, and move it to process_32.c, closer
to its only user.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:48:24 +02:00
Glauber Costa 3fde690011 x86: change __setup_vector_irq with setup_vector_irq
We create a version of it for i386, and then take the CONFIG_X86_64
ifdef out of the game. We could create a __setup_vector_irq for i386,
but it would incur in an unnecessary lock taking. Moreover, it is better
practice to only export setup_vector_irq anyway.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:48:21 +02:00
Glauber Costa a939098afc x86: move x86_64 gdt closer to i386
i386 and x86_64 used two different schemes for maintaining the gdt.
With this patch, x86_64 initial gdt table is defined in a .c file,
same way as i386 is now. Also, we call it "gdt_page", and the descriptor,
"early_gdt_descr". This way we achieve common naming, which can allow for
more code integration.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:48:16 +02:00
Jeremy Fitzhardinge a7bf0bd5e6 build: add __page_aligned_data and __page_aligned_bss
Making a variable page-aligned by using
__attribute__((section(".data.page_aligned"))) is fragile because if
sizeof(variable) is not also a multiple of page size, it leaves
variables in the remainder of the section unaligned.

This patch introduces two new qualifiers, __page_aligned_data and
__page_aligned_bss to set the section *and* the alignment of
variables.  This makes page-aligned variables more robust because the
linker will make sure they're aligned properly.  Unfortunately it
requires *all* page-aligned data to use these macros...

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:48:13 +02:00
Bernhard Walle 1ecd27657b x86: unify crashkernel reservation for 32 and 64 bit
This patch moves the reserve_crashkernel() to setup.c and removes the
architecture-specific version. Both versions were more or less the same.

I tested it on both x86-64 and i386, with CONFIG_KEXEC on and off (so
that it compiles).

Signed-off-by: Bernhard Walle <bwalle@suse.de>
Cc: yhlu.kernel@gmail.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:45:44 +02:00
Ingo Molnar 6236af82d8 Merge branch 'x86/fixmap' into x86/devel
Conflicts:

	arch/x86/mm/init_64.c

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:24:29 +02:00
Ingo Molnar e3ae0acf59 Merge branch 'x86/uv' into x86/devel 2008-07-08 12:24:13 +02:00
Jack Steiner ab9c0bb8a8 x86: increase MAX_APICS for very large x86-64 configs
Increase the maximum number of apics when running very large
configurations. This patch has no affect on most systems.

The patch has no effect on any 32-bit kernel. It adds ~4k to the size
of 64-bit kernels but only if NR_CPUS > 255.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:23:29 +02:00
Jack Steiner b6df1b8bc1 x86: fix stack overflow for large values of MAX_APICS
physid_mask_of_physid() causes a huge stack (12k) to be created if the
number of APICS is large. Replace physid_mask_of_physid() with a
new function that does not create large stacks. This is a problem only
on large x86_64 systems.

this paves the way to increase MAX_APICS.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: linux-mm@kvack.org
Cc: mingo@elte.hu
Cc: tglx@linutronix.de
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:23:28 +02:00
Ingo Molnar dc163a41ff SGI UV: TLB shootdown using broadcast assist unit
TLB shootdown for SGI UV.

v5: 6/12 corrections/improvements per Ingo's second review

Signed-off-by: Cliff Wickman <cpw@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:23:25 +02:00
Cliff Wickman b194b12050 SGI UV: TLB shootdown using broadcast assist unit, cleanups
TLB shootdown for SGI UV.

v1: 6/2 original
v2: 6/3 corrections/improvements per Ingo's review
v3: 6/4 split atomic operations off to a separate patch (Jeremy's review)
v4: 6/12 include <mach_apic.h> rather than <asm/mach-bigsmp/mach_apic.h>
         (fixes a !SMP build problem that Ingo found)
         fix the index on uv_table_bases[blade]

Signed-off-by: Cliff Wickman <cpw@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:23:24 +02:00
Cliff Wickman 73e991f45f x86 atomic operations: atomic_or_long() atomic_inc_short()
Provide atomic operations for increment of a 16-bit integer and
logical OR into a 64-bit integer.

Signed-off-by: Cliff Wickman <cpw@sgi.com>
Reviewed-by: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:23:23 +02:00
Cliff Wickman 1812924bb1 x86, SGI UV: TLB shootdown using broadcast assist unit
TLB shootdown for SGI UV.

Depends on patch (in tip/x86/irq):
   x86-update-macros-used-by-uv-platform.patch   Jack Steiner May 29

This patch provides the ability to flush TLB's in cpu's that are not on
the local node.  The hardware mechanism for distributing the flush
messages is the UV's "broadcast assist unit".

The hook to intercept TLB shootdown requests is a 2-line change to
native_flush_tlb_others() (arch/x86/kernel/tlb_64.c).

This code has been tested on a hardware simulator. The real hardware
is not yet available.

The shootdown statistics are provided through /proc/sgi_uv/ptc_statistics.
The use of /sys was considered, but would have required the use of
many /sys files.  The debugfs was also considered, but these statistics
should be available on an ongoing basis, not just for debugging.

Issues to be fixed later:
- The IRQ for the messaging interrupt is currently hardcoded as 200
  (see UV_BAU_MESSAGE).  It should be dynamically assigned in the future.
- The use of appropriate udelay()'s is untested, as they are a problem
  in the simulator.

Signed-off-by: Cliff Wickman <cpw@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:23:22 +02:00
Ingo Molnar d98b940ab2 Merge branch 'linus' into x86/irq 2008-07-08 12:23:00 +02:00
Ingo Molnar 4b62ac9a2b Merge branch 'x86/nmi' into x86/devel
Conflicts:

	arch/x86/kernel/nmi.c
	arch/x86/kernel/nmi_32.c

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08 12:17:08 +02:00