Commit Graph

99606 Commits

Author SHA1 Message Date
Ingo Molnar
18c413e27e x86, VisWS: turn into generic arch, eliminate asm-x86/mach-visws/mach_apicdef.h
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-10 18:55:38 +02:00
Ingo Molnar
b70d9c2473 x86, VisWS: turn into generic arch, update asm-x86/mach-visws/mach_apicdef.h
update asm-x86/mach-visws/mach_apicdef.h to the generic version.

This should work fine as VISWS has a standard local APIC and thus
its mach_apicdef.h copy is just an ancient version of the generic code.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-10 18:55:37 +02:00
Ingo Molnar
6649ababd5 x86, VisWS: turn into generic arch, eliminate include/asm-x86/mach-visws/smpboot_hooks.h
now that include/asm-x86/mach-visws/smpboot_hooks.h equals
to the default file in ../mach-default/smpboot_hooks.h, simply
include it instead of maintaining a copy.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-10 18:55:36 +02:00
Ingo Molnar
244a5e2ee0 x86, VisWS: turn into generic arch, update include/asm-x86/mach-visws/smpboot_hooks.h
update include/asm-x86/mach-visws/smpboot_hooks.h to
include/asm-x86/mach-default/smpboot_hooks.h (the generic version).

this _should_ work, because VISWS sets skip_ioapic_setup, but it
should be tested on a real VISWS to make sure.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-10 18:55:36 +02:00
Ingo Molnar
6a64b5da9b x86, VisWS: turn into generic arch, enhance include/asm-x86/mach-default/smpboot_hooks.h
Allow the generic smpboot quirks code to be built with
ONFIG_X86_IO_APIC disabled. This way VISWS will be able
to use it as-is.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-10 18:55:35 +02:00
Ingo Molnar
d8d1bc73f0 x86, VisWS: turn into generic arch, eliminate include/asm-x86/mach-visws/mach_apic.h
now that include/asm-x86/mach-visws/mach_apic.h equals
to include/asm-x86/mach-default/mach_apic.h, simply start
using the generic one.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-10 18:55:34 +02:00
Ingo Molnar
808fc878d3 x86, VisWS: turn into generic arch, update asm-x86/mach-visws/mach_apic.h
update asm-x86/mach-visws/mach_apic.h to the generic version.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-10 18:55:34 +02:00
Ingo Molnar
5548ed1135 x86, VisWS: turn into generic arch, install proper PCI quirk
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-10 18:55:33 +02:00
Ingo Molnar
5ab74722a4 x86, VisWS: turn into generic arch, use generic mpparse code
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-10 18:55:33 +02:00
Ingo Molnar
31ac409a79 x86, VisWS: turn into generic arch, add early init quirks
add early init quirks for VisWS. This gradually turns the VISWS subarch
into a generic PC architecture.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-10 18:55:32 +02:00
Ingo Molnar
22d5c67c5b x86, VisWS: turn into generic arch, make VisWS boot on a regular PC
first step: make the VISWS subarch boot on a regular PC.

We take various shortcuts for that. We copy the generic arch setup file over
into the VISWS setup file.

This is the only step that is not expected to boot on a real VISWS.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-10 18:55:32 +02:00
Ingo Molnar
3b33553bad x86: add early quirk support
Add early quirks support.

In preparation of enabling the generic architecture to boot on a VISWS.

This will allow us to remove the VISWS subarch and all its complications.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-10 18:55:31 +02:00
Ingo Molnar
520b9617ab Merge branch 'x86/core' into x86/generalize-visws 2008-07-10 18:55:17 +02:00
Ingo Molnar
f87f38ec5a Merge branch 'x86/unify-pci' into x86/core 2008-07-10 18:47:29 +02:00
Ingo Molnar
a6784ad7ea x86: fix visws and vsmp build
these two sub-architectures want PCI to be default-on, not default-off.

Reported-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-10 12:34:54 +02:00
Maciej W. Rozycki
0b9f4f49e2 x86: I/O APIC: Add a 64-bit variation of replace_pin_at_irq()
When an interrupt is rerouted to a different I/O APIC pin the relevant
entry of the irq_2_pin list should get updated accordingly so that
operations are performed on the correct redirection entry.

This is already done by the 32-bit variation of the code and here is a
complementing 64-bit implementation.  Should make someone's decision less
tough when merging the two. ;)

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-10 11:04:05 +02:00
Ingo Molnar
c9076b6319 Revert "x86: fix IO APIC breakage on HP nx6325"
This reverts commit 90221a61a71b7ad659d8741cf1e404506b174982.

This too was just temporary diagnostics - not needed now that we've
got the final fix via:

| commit e2079c4386
| Author: Rafael J. Wysocki <rjw@sisk.pl>
| Date:   Tue Jul 8 16:12:26 2008 +0200
|
|     x86: fix C1E && nx6325 stability problem

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-10 11:00:50 +02:00
Ingo Molnar
2179bab7d4 Revert "x86: fix IO APIC breakage on HP nx6325, v2"
This reverts commit a74a1cc3df0be89658bc735c8aed80c8392e2c15.

This was just temporary diagnostics commit - not needed now that we've
got the final fix.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-10 10:59:59 +02:00
FUJITA Tomonori
18b743dc94 x86, AMD IOMMU: clean up Kconfig entry
AMD_IOMMU should depend on IOMMU_HELPER since they are the IOMMU
helper functions. SWIOTLB requires IOMMU_HELPER so declaring that
AMD_IOMMU depends on SWIOTLB properly fixes the problems.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-10 10:43:27 +02:00
FUJITA Tomonori
e93be88d7e x86: clean up iommu.h and gart.h
This remove lots of duplications in iommu.h and gart.h.

The end result of this patch is:

- iommu.h is a header file for everyone related with IOMMUs.

- gart.h is the private header file. Only pci-gart_64.c and its friends
  include it.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: fujita.tomonori@lab.ntt.co.jp
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-10 10:43:26 +02:00
Ingo Molnar
849567b936 Merge branch 'x86/gart' into x86/core 2008-07-10 10:43:11 +02:00
Yinghai Lu
3d43ecd286 x86: make e820_end return end_of_ram again for 64bit
even on 64bit systems with less than 4G RAM, we can now use fixmap
to handle acpi SIT near end of ram.

change e820_end to e820_end_of_ram again?
or e820_ram_pfn?

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-10 09:01:35 +02:00
Yinghai Lu
f34fa82b19 x86, acpi: merge __acpi_map_table
and let 64-bit to fall back to use fixmap too.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-10 09:01:25 +02:00
Yinghai Lu
7b16eb8930 x86: overmapped fix when 4K pages on tail, 64-bit
fix phys_pmd_init to make sure not to return bigger value than end.

also print out range split:1G/2M/4K in init_memory_mapping().

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-10 08:46:40 +02:00
Ingo Molnar
4fb3dc2729 x86: build fix for "x86: fix C1E && nx6325 stability problem"
fix:

 arch/x86/kernel/built-in.o: In function `dmi_ignore_irq0_timer_override':
 boot.c:(.init.text+0x3ea4): undefined reference to `force_mask_ioapic_irq_2'

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-10 08:09:08 +02:00
Vitaly Mayatskikh
ad2fc2cd92 x86: fix copy_user on x86
Switch copy_user_generic_string(), copy_user_generic_unrolled() and
__copy_user_nocache() from custom tail handlers to generic
copy_user_tail_handle().

Signed-off-by: Vitaly Mayatskikh <v.mayatskih@gmail.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09 15:51:16 +02:00
Vitaly Mayatskikh
1129585a08 x86: introduce copy_user_handle_tail() routine
Introduce generic C routine for handling necessary tail operations after
protection fault in copy_*_user on x86.

Signed-off-by: Vitaly Mayatskikh <v.mayatskih@gmail.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09 15:51:03 +02:00
Ingo Molnar
de989ef093 Merge branch 'x86/unify-lib' into x86/core 2008-07-09 15:00:48 +02:00
Cyrill Gorcunov
a737abd11a x86: e820 memmap - add checking for NULL early param
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: akpm@linux-foundation.org
Cc: andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09 13:58:07 +02:00
Yinghai Lu
c22d4c1885 x86: make e820_end return max ram type only for 32 bit
to avoid warning from find_low_pfn_range for high pages size etc

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09 12:30:13 +02:00
Robert Richter
8dd779b19c x86/pci: removing subsys_initcall ordering dependencies
So far subsys_initcalls has been executed in this order depending on
the object order in the Makefile:

arch/x86/pci/visws.c:subsys_initcall(pcibios_init);
arch/x86/pci/numa.c:subsys_initcall(pci_numa_init);
arch/x86/pci/acpi.c:subsys_initcall(pci_acpi_init);
arch/x86/pci/legacy.c:subsys_initcall(pci_legacy_init);
arch/x86/pci/irq.c:subsys_initcall(pcibios_irq_init);
arch/x86/pci/common.c:subsys_initcall(pcibios_init);

This patch removes the ordering dependency. There is now only one
subsys_initcall function that contains subsystem initialization code
with a defined order.

Signed-off-by: Robert Richter <robert.richter@amd.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09 11:45:03 +02:00
Robert Richter
ae28d70529 x86/pci: visws: renaming pcibios_init()
Signed-off-by: Robert Richter <robert.richter@amd.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09 11:44:50 +02:00
Robert Richter
f4d994b541 x86/pci: Makefile merge: coalescing 32 and 64 bit
Signed-off-by: Robert Richter <robert.richter@amd.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09 11:44:45 +02:00
Robert Richter
d199a04827 x86/pci: merge: moving mp_bus_to_node.c to amd_bus.c
Signed-off-by: Robert Richter <robert.richter@amd.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09 11:44:40 +02:00
Robert Richter
42a4b427a8 x86/pci: mp_bus_to_node merge: moving code in amd_bus.c
Signed-off-by: Robert Richter <robert.richter@amd.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09 11:44:34 +02:00
Robert Richter
8eefc66403 x86/pci: Makefile merge: creating pci-y for 64 bit
Signed-off-by: Robert Richter <robert.richter@amd.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09 11:44:28 +02:00
Robert Richter
8043c7be4b x86/pci: Makefile merge: changing 64bit ordering
This should be safe since mmconfig*.o and init.o do not contain
*initcalls with the same level as in other files.

Signed-off-by: Robert Richter <robert.richter@amd.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09 11:44:22 +02:00
Robert Richter
a5d4fb94f7 x86/pci: Makefile merge: decoupling options for mp_bus_to_node.o
Signed-off-by: Robert Richter <robert.richter@amd.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09 11:44:16 +02:00
Robert Richter
0b40e84ab7 x86/pci: Makefile merge: whitespace changes only
Signed-off-by: Robert Richter <robert.richter@amd.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09 11:44:08 +02:00
Robert Richter
7fa71c0e0e x86/pci: Makefile merge: removing include dir flag
Signed-off-by: Robert Richter <robert.richter@amd.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09 11:44:01 +02:00
Robert Richter
6d8566ac13 x86/pci: Makefile merge: Removing Makefile_*
No functional nor ordering changes here.

Signed-off-by: Robert Richter <robert.richter@amd.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09 11:43:04 +02:00
Ingo Molnar
d028203c04 Merge branch 'x86/core' into x86/unify-pci 2008-07-09 11:39:02 +02:00
Ingo Molnar
183fe06565 x86: build fix for "x86: fix C1E && nx6325 stability problem"
fix:

arch/x86/kernel/acpi/boot.c: In function ‘dmi_ignore_irq0_timer_override’:
arch/x86/kernel/acpi/boot.c:1443: error: implicit declaration of function ‘force_mask_ioapic_irq_2’

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09 11:31:36 +02:00
Rafael J. Wysocki
e2079c4386 x86: fix C1E && nx6325 stability problem
The problems are that, with the ACPI vs timer overring issue _fixed_,
after using the box for some time (between several seconds and 1 hour, at
random) processes get very high CPU loads (once I've got X using 107% of
the CPU, for example) and the system becomes unresponsive, as though there
were interrupts lost or something similar.

Andreas Herrman reproduced similar problems:

> Ok, now I've reproduced the stability problem.
> - Using tip/master,
> - reverting e38502eb8aa82314d5ab0eba45f50e6790dadd88 and
> - applying your patch from this posting
>   http://marc.info/?l=linux-kernel&m=121539354224562&w=4
>
> Starting X, firefox, gimp, tuxpaint and doing some drawing in tuxpaint
> results in a slow system. Drawing is almost not possible anymore --
> Selections of new colors, cursors etc. is performed with huge delay
> if it's performed at all.
>
> BTW, the code sets up timer IRQ as Virtual Wire IRQ:
>
> Jul  8 14:57:58 kodscha IO-APIC (apicid-pin) 2-22, 2-23 not connected.
> Jul  8 14:57:58 kodscha ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
> Jul  8 14:57:58 kodscha ...trying to set up timer as Virtual Wire IRQ... works.
>
> and both INT0 and INT2 of IOAPIC are masked:
>
> Jul  8 14:57:58 kodscha NR Dst Mask Trig IRR Pol Stat Dmod Deli Vect:
> Jul  8 14:57:58 kodscha 00 000 1    0    0   0   0    0    0    00
> Jul  8 14:57:58 kodscha 01 003 0    0    0   0   0    1    1    31
> Jul  8 14:57:58 kodscha 02 003 1    0    0   0   0    0    0    30
>
> I've also seen strange CPU utilization -- with syslog-ng:
>
> top - 15:33:06 up 35 min,  4 users,  load average: 1.70, 0.68, 0.37
> Tasks:  64 total,   4 running,  60 sleeping,   0 stopped,   0 zombie
> Cpu0  :  0.0%us,100.0%sy,  0.0%ni,  0.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
> Cpu1  :  6.4%us, 87.2%sy,  0.0%ni,  5.8%id,  0.0%wa,  0.6%hi,  0.0%si,  0.0%st
> Mem:    895384k total,   283568k used,   611816k free,    35492k buffers
> Swap:  1959920k total,        0k used,  1959920k free,   163044k cached
>
>   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
>  4632 root      20   0 17216  800  580 S  104  0.1   0:34.22 syslog-ng
> 28505 root      20   0  205m  11m 4024 S    6  1.3   0:21.16 X
> 28518 root      20   0 56292 5652 4492 S    1  0.6   0:01.80 fluxbox
>     1 root      20   0  3724  608  508 S    0  0.1   0:00.36 init
>
> So far I have no clue why C1E-idle in conjunction with virtual wire
> mode causes this strange behaviour.
>
> ... and I start to think about the root cause of all this.
>
> I've performed similar tests under X with the IRQ0/INT0 configuration and
> I did not see above symptoms.

So lets fall back to the IRQ0/INT0 configuration on this box.

This basically restores the dont-use-the-lapic-timer exception mechanism
that was unconditional on this box prior commit 8750bf5 ("x86: add C1E
aware idle function").

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09 11:03:21 +02:00
FUJITA Tomonori
8cbfd4f44d x86, iommu: replace CONFIG_IOMMU with CONFIG_GART_IOMMU in iommu.h
Hmm, looks like it would be nice to have more cleanups of iommu.h and
gart.h.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09 10:53:13 +02:00
Yinghai Lu
c2e6d65bce x86: not overmap more than the end of RAM in init_memory_mapping - 64bit
handle head and tail that are not aligned to big pages (2MB/1GB boundary).

with this patch, on system that support gbpages, change:

  last_map_addr: 1080000000 end: 1078000000

to:

  last_map_addr: 1078000000 end: 1078000000

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09 10:43:26 +02:00
Yinghai Lu
2dc807b37b x86: make max_pfn cover acpi table below 4g
When system have 4g less ram installed, and acpi table sit
near end of ram, make max_pfn cover them too,
so 64bit kernel don't need to mess up fixmap.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: "Suresh Siddha" <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09 10:43:25 +02:00
Yinghai Lu
49c980df55 x86: fix vmemmap printout check
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: "Nick Piggin" <npiggin@suse.de>
Cc: "Mark McLoughlin" <markmc@redhat.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: "Eduardo Habkost" <ehabkost@redhat.com>
Cc: "Vegard Nossum" <vegard.nossum@gmail.com>
Cc: "Stephen Tweedie" <sct@redhat.com>
Cc: "Jeremy Fitzhardinge" <jeremy@goop.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09 10:43:24 +02:00
Yinghai Lu
b50efd2a55 x86: introduce page_size_mask for 64bit
prepare for overmapped patch

also printout last_map_addr together with end

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09 09:37:45 +02:00
Glauber Costa
22cac16707 x86: define architectural characteristics in uaccess.h.
Remove them from the arch-specific file.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-09 09:14:29 +02:00