Commit Graph

10393 Commits

Author SHA1 Message Date
Roland McGrath
e03f0ca116 [PATCH] x86_64 ia32 vDSO: use VM_ALWAYSDUMP
This patch fixes ia32 core dumps on x86_64 to include just one phdr for the
vDSO vma.  Currently it writes a confused format with two phdrs for the
address, one without contents and one with.  This patch removes the
special-case core writing macros for the ia32 vDSO.  Instead, it uses
VM_ALWAYSDUMP in the vma.  This changes core dumps so they no longer include
the non-PT_LOAD phdrs from the vDSO, consistent with fixed native i386 core
dumps.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-26 13:50:58 -08:00
Roland McGrath
f47aef55d9 [PATCH] i386 vDSO: use VM_ALWAYSDUMP
This patch fixes core dumps to include the vDSO vma, which is left out now.
It removes the special-case core writing macros, which were not doing the
right thing for the vDSO vma anyway.  Instead, it uses VM_ALWAYSDUMP in the
vma; there is no need for the fixmap page to be installed.  It handles the
CONFIG_COMPAT_VDSO case by making elf_core_dump use the fake vma from
get_gate_vma after real vmas in the same way the /proc/PID/maps code does.

This changes core dumps so they no longer include the non-PT_LOAD phdrs from
the vDSO.  I made the change to add them in the first place, but in turned out
that nothing ever wanted them there since the advent of NT_AUXV.  It's cleaner
to leave them out, and just let the phdrs inside the vDSO image speak for
themselves.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-26 13:50:58 -08:00
Roland McGrath
a1f3bb9ae4 [PATCH] Fix CONFIG_COMPAT_VDSO
I wouldn't mind if CONFIG_COMPAT_VDSO went away entirely.  But if it's there,
it should work properly.  Currently it's quite haphazard: both real vma and
fixmap are mapped, both are put in the two different AT_* slots, sysenter
returns to the vma address rather than the fixmap address, and core dumps yet
are another story.

This patch makes CONFIG_COMPAT_VDSO disable the real vma and use the fixmap
area consistently.  This makes it actually compatible with what the old vdso
implementation did.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-26 13:50:58 -08:00
Ralf Baechle
9cfdf6f15a [MIPS] VPE loader: Initialize lists before they're actually being used ...
kspd which due to makefile order happens to be initialized before the
vpe loader causes references to vpecontrol lists before they're actually
been initialized.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-01-24 19:23:22 +00:00
Thiemo Seufer
80aac59ed5 [MIPS] Fix reported amount of freed memory - it's in kB not bytes
While at it, change message on DEC for consistency.

Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-01-24 19:23:22 +00:00
Ralf Baechle
ec43c01420 [MIPS] SMTC: Fix module build by exporting symbol
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-01-24 19:23:21 +00:00
Ralf Baechle
a0b6218037 [MIPS] SMTC: Fix TLB sizing bug for TLB of 64 >= entries
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-01-24 19:23:21 +00:00
Alexey Dobriyan
48c35b2d24 [MIPS] There is no __GNUC_MAJOR__
Gcc major version number is in __GNUC__. As side effect fix checking
with sparse if sparse was built with gcc 4.1 and mips cross-compiler
is 3.4.

Sparse will inherit version 4.1, __GNUC__ won't be filtered from
"-dM -E -xc" output, sparse will pick only new major, effectively becoming
gcc version 3.1 which is unsupported.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-01-24 19:23:21 +00:00
Linus Torvalds
d227e87e6c Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  [MIPS] Vr41xx: Fix after GENERIC_HARDIRQS_NO__DO_IRQ change
  [MIPS] SMTC: Instant IPI replay.
2007-01-23 11:19:32 -08:00
Yoichi Yuasa
364ca8a897 [MIPS] Vr41xx: Fix after GENERIC_HARDIRQS_NO__DO_IRQ change
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-01-23 18:26:47 +00:00
Ralf Baechle
ac8be95504 [MIPS] SMTC: Instant IPI replay.
SMTC pseudo-interrupts between TCs are deferred and queued if the target
TC is interrupt-inhibited (IXMT). In the first SMTC prototypes, these
queued IPIs were serviced on return to user mode, or on entry into the
kernel idle loop. The INSTANT_REPLAY option dispatches them as part of
local_irq_restore() processing, which adds runtime overhead (hence the
option to turn it off), but ensures that IPIs are handled promptly even
under heavy I/O interrupt load.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-01-23 18:26:47 +00:00
Ingo Molnar
0dbe5a1113 [PATCH] paravirt: mark the paravirt_ops export internal
The paravirt subsystem is still in flux so all exports from it are
definitely internal use only.  The APIs around this /will/ change.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Andi Kleen <ak@suse.de>
Cc: Zachary Amsden <zach@vmware.com>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-23 07:52:06 -08:00
Venkatesh Pallipadi
58d9ce7d75 [PATCH] Revert nmi_known_cpu() check during boot option parsing
Commit f2802e7f57 and its x86 version
(b7471c6da9) adds nmi_known_cpu() check
while parsing boot options in x86_64 and i386.

With that, "nmi_watchdog=2" stops working for me on Intel Core 2 CPU
based system.

The problem is, setup_nmi_watchdog is called while parsing the boot
option and identify_cpu is not done yet.  So, the return value of
nmi_known_cpu() is not valid at this point.

So revert that check.  This should not have any adverse effect as the
nmi_known_cpu() check is done again later in enable_lapic_nmi_watchdog().

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-23 07:52:05 -08:00
James Bottomley
9ee79a3d37 [PATCH] x86: fix PDA variables to work during boot
The current PDA code, which went in in post 2.6.19 has a flaw in that it
doesn't correctly cycle the GDT and %GS segment through the boot PDA,
the CPU PDA and finally the per-cpu PDA.

The bug generally doesn't show up if the boot CPU id is zero, but
everything falls apart for a non zero boot CPU id.  The basically kills
voyager which is perfectly capable of doing non zero CPU id boots, so
voyager currently won't boot without this.

The fix is to be careful and actually do the GDT setups correctly.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-22 19:39:36 -08:00
Linus Torvalds
ebcccd14b7 Merge git://git.infradead.org/mtd-2.6
* git://git.infradead.org/mtd-2.6: (84 commits)
  [JFFS2] debug.h: include <linux/sched.h> for current->pid
  [MTD] OneNAND: Handle DDP chip boundary during read-while-load
  [MTD] OneNAND: return ecc error code only when 2-bit ecc occurs
  [MTD] OneNAND: Implement read-while-load
  [MTD] OneNAND: fix onenand_wait bug in read ecc error
  [MTD] OneNAND: release CPU in cycles
  [MTD] OneNAND: add subpage write support
  [MTD] OneNAND: fix onenand_wait bug
  [JFFS2] use the ref_offset macro
  [JFFS2] Reschedule in loops
  [JFFS2] Fix error-path leak in summary scan
  [JFFS2] add cond_resched() when garbage collecting deletion dirent
  [MTD] Nuke IVR leftovers
  [MTD] OneNAND: fix oob handling in recent oob patch
  [MTD] Fix ssfdc blksize typo
  [JFFS2] replace kmalloc+memset with kzalloc
  [MTD] Fix SSFDC build for variable blocksize.
  [MTD] ESB2ROM uses PCI
  [MTD] of_device-based physmap driver
  [MTD] Support combined RedBoot FIS directory and configuration area
  ...
2007-01-22 19:32:13 -08:00
Linus Torvalds
b4a2c87dad Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Update defconfigs
  [POWERPC] atomic_dec_if_positive sign extension fix
  [POWERPC] Fix OF node refcnt underflow in 836x and 832x platform code
  [POWERPC] Make it blatantly clear; mpc5200 device tree is not yet stable
  [POWERPC] Fix broken DMA on non-LPAR pSeries
  [POWERPC] Fix cell's mmio nvram to properly parse device tree
  [POWERPC] Remove bogus sanity check in pci -> OF node code
2007-01-22 09:21:02 -08:00
Paul Mackerras
e89debcd18 [POWERPC] Update defconfigs
Mostly took the defaults, except tried to get the netfilter options
more or less as they were before.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-22 22:39:24 +11:00
Li Yang
06cd939677 [POWERPC] Fix OF node refcnt underflow in 836x and 832x platform code
Incorrect use of of_find_node_by_name() causes of_node_put()
on a node which has already been put.  It causes the refcount of
the node to underflow, which triggers the WARN_ON in kref_get
for 836x and 832x.  This fixes it.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-22 21:27:35 +11:00
Grant Likely
121361f72c [POWERPC] Make it blatantly clear; mpc5200 device tree is not yet stable
Documentation-only change.  The 5200 device tree layout has not yet
stablized, so nobody should depend on the layout of the tree.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-22 21:27:35 +11:00
Linas Vepstas
77319254f1 [POWERPC] Fix broken DMA on non-LPAR pSeries
It appears that the iommu table address is never stored, and thus
never found, on non-lpar systems. Thus, for example, during boot:

<7>[   93.067916] PCI: Scanning bus 0001:41
<7>[   93.068542] PCI: Found 0001:41:01.0 [8086/100f] 000200 00
<7>[   93.068550] PCI: Calling quirk c0000000007822e0 for 0001:41:01.0
<7>[   93.069815] PCI: Fixups for bus 0001:41
<4>[   93.070167] iommu: Device 0001:41:01.0 has no iommu table
<7>[   93.070251] PCI: Bus scan for 0001:41 returning with max=41

No iommu table? How can that be? Well, circa line 471 of
arch/powerpc/platforms/pseries/iommu.c we see the code:

   while (dn && PCI_DN(dn) && PCI_DN(dn)->iommu_table == NULL)
      dn = dn->parent;

and a few lines later is the surprising print statement about
the missing table.  Seems that this loop ran unto the end, never
once finding a non-null PCI_DN(dn)->iommu_table.

The problem can be found a few lines earlier: it sems that the
value of PCI_DN(dn)->iommu_table is never ever set. Thus, the
patch sets it.

The patch was tested on a Power4 system running in full system
partition mode, which is where I saw the problem. It works; I've
not done any wider testing. Had a brief discussion on this on irc.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-22 21:27:35 +11:00
Benjamin Herrenschmidt
6984ee797a [POWERPC] Fix cell's mmio nvram to properly parse device tree
The mmio nvram driver (used by cell only atm) isn't properly parsing
the device-tree, meaning that nvram isn't found correctly on the new
Cell blades.  It works ok for old blades where the nvram is at the
root of the device tree but fails on Malta and CAB when it's hanging
off axon.  This fixes it by using the proper OF parsing functions.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-22 21:27:35 +11:00
Benjamin Herrenschmidt
4ef6e68117 [POWERPC] Remove bogus sanity check in pci -> OF node code
The new implementation of pci_device_to_OF_node() on ppc32 has a bogus
sanity check in it that can cause oopses at boot when no device node is
present, and might hit correct cases with older/weird apple device-trees
where they have the type "vci" for the chaos bridge.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-22 21:27:35 +11:00
Ralf Baechle
2806ccd7ad [MIPS] Delete duplicate call to load_irq_save.
This call may have resulted to local_tlb_flush_range returning with
interrupts disabled resulting in excessive interrupt latency.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-01-19 01:08:26 +00:00
Ralf Baechle
c80697b3a0 [MIPS] SMTC: Fix cp0 hazard.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-01-19 01:08:26 +00:00
David Woodhouse
9cdf083f98 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2007-01-18 10:34:51 +11:00
Linus Torvalds
e947382ed3 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
  Revert "ACPI: ibm-acpi: make non-generic bay support optional"
  ACPI: update MAINTAINERS
  ACPI: schedule obsolete features for deletion
  ACPI: delete two spurious ACPI messages
  ACPI: rename cstate_entry_s to cstate_entry
  ACPI: ec: enable printk on cmdline use
  ACPI: Altix: ACPI _PRT support
2007-01-11 18:25:44 -08:00
takada
e4f0ae0ea6 [PATCH] fix typo in geode_configre()@cyrix.c
We write back the wrong register when configuring the Geode processor.
Instead of storing to CCR4, it stores to CCR3.

Cc: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11 18:18:21 -08:00
Vivek Goyal
664c0d3d57 [PATCH] i386: sched_clock using init data tsc_disable fix
o sched_clock() a non-init function is using init data tsc_disable. This
  is flagged by MODPOST on i386 if CONFIG_RELOCATABLE=y

WARNING: vmlinux - Section mismatch: reference to .init.data:tsc_disable from .text between 'sched_clock' (at offset 0xc0109d58) and 'tsc_update_callback'

Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11 18:18:20 -08:00
Gautham R Shenoy
b282b6f8a8 [PATCH] Change cpu_up and co from __devinit to __cpuinit
Compiling the kernel with CONFIG_HOTPLUG = y and CONFIG_HOTPLUG_CPU = n
with CONFIG_RELOCATABLE = y generates the following modpost warnings

WARNING: vmlinux - Section mismatch: reference to .init.data: from
.text between '_cpu_up' (at offset 0xc0141b7d) and 'cpu_up'
WARNING: vmlinux - Section mismatch: reference to .init.data: from
.text between '_cpu_up' (at offset 0xc0141b9c) and 'cpu_up'
WARNING: vmlinux - Section mismatch: reference to .init.text:__cpu_up
from .text between '_cpu_up' (at offset 0xc0141bd8) and 'cpu_up'
WARNING: vmlinux - Section mismatch: reference to .init.data: from
.text between '_cpu_up' (at offset 0xc0141c05) and 'cpu_up'
WARNING: vmlinux - Section mismatch: reference to .init.data: from
.text between '_cpu_up' (at offset 0xc0141c26) and 'cpu_up'
WARNING: vmlinux - Section mismatch: reference to .init.data: from
.text between '_cpu_up' (at offset 0xc0141c37) and 'cpu_up'

This is because cpu_up, _cpu_up and __cpu_up (in some architectures) are
defined as __devinit
AND
__cpu_up calls some __cpuinit functions.

Since __cpuinit would map to __init with this kind of a configuration,
we get a .text refering .init.data warning.

This patch solves the problem by converting all of __cpu_up, _cpu_up
and cpu_up from __devinit to __cpuinit. The approach is justified since
the callers of cpu_up are either dependent on CONFIG_HOTPLUG_CPU or
are of __init type.

Thus when CONFIG_HOTPLUG_CPU=y, all these cpu up functions would land up
in .text section, and when CONFIG_HOTPLUG_CPU=n, all these functions would
land up in .init section.

Tested on a i386 SMP machine running linux-2.6.20-rc3-mm1.

Signed-off-by: Gautham R Shenoy <ego@in.ibm.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11 18:18:20 -08:00
Dave Hansen
a2f3aa0257 [PATCH] Fix sparsemem on Cell
Fix an oops experienced on the Cell architecture when init-time functions,
early_*(), are called at runtime.  It alters the call paths to make sure
that the callers explicitly say whether the call is being made on behalf of
a hotplug even, or happening at boot-time.

It has been compile tested on ppc64, ia64, s390, i386 and x86_64.

Acked-by: Arnd Bergmann <arndb@de.ibm.com>
Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Acked-by: Andy Whitcroft <apw@shadowen.org>
Cc: Christoph Lameter <clameter@engr.sgi.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11 18:18:20 -08:00
Len Brown
8f6d63adf8 Pull sgi into release branch 2007-01-11 01:55:34 -05:00
Len Brown
85f4544fbf Pull trivial into release branch 2007-01-11 01:55:25 -05:00
Venkatesh Pallipadi
5d65131fa8 ACPI: rename cstate_entry_s to cstate_entry
style change only.

Signed-off-by: Len Brown <len.brown@intel.com>
2007-01-10 23:08:38 -05:00
Linus Torvalds
0404f87f2e Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6:
  [PATCH] x86-64: Fix warnings in ia32_aout.c
  [PATCH] i386: Convert some functions to __init to avoid MODPOST warnings
  [PATCH] i386: Fix memory hotplug related MODPOST generated warning
  [PATCH] x86-64: tighten up printks
  [PATCH] x86-64: - Ignore long SMI interrupts in clock calibration
  [PATCH] x86-64: pci quirks MODPOST warning fix
  [PATCH] x86-64: Modpost whitelist reference to more symbols (pattern 3)
  [PATCH] x86-64: modpost add more symbols to whitelist pattern2
  [PATCH] i386: make apic probe function non-init
  [PATCH] i386: cpu hotplug/smpboot misc MODPOST warning fixes
  [PATCH] x86-64: Use different constraint for gcc < 4.1 in bitops.h
  [PATCH] x86-64: Make noirqdebug_setup function non init to fix modpost warning
  [PATCH] i386: Update defconfig
  [PATCH] x86-64: Update defconfig
2007-01-10 18:06:14 -08:00
Andi Kleen
7401969907 [PATCH] x86-64: Fix warnings in ia32_aout.c
Fix

linux/arch/x86_64/ia32/ia32_aout.c: In function ‘create_aout_tables’:
linux/arch/x86_64/ia32/ia32_aout.c:244: warning: cast from pointer to integer of different size
linux/arch/x86_64/ia32/ia32_aout.c:253: warning: cast from pointer to integer of different size

with gcc 4.3
Signed-off-by: Andi Kleen <ak@suse.de>
2007-01-11 01:52:45 +01:00
Vivek Goyal
88d20328cd [PATCH] i386: Convert some functions to __init to avoid MODPOST warnings
o Some functions which should have been in init sections as they are called
  only once. Put them in init sections. Otherwise MODPOST generates warning
  as these functions are placed in .text and they end up accessing something
  in init sections.

WARNING: vmlinux - Section mismatch: reference to .init.text:migration_init
from .text between 'do_pre_smp_initcalls' (at offset 0xc01000d1) and
'run_init_process'

Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Andi Kleen <ak@suse.de>
2007-01-11 01:52:44 +01:00
Vivek Goyal
0e0be25d31 [PATCH] i386: Fix memory hotplug related MODPOST generated warning
o Fix modpost generated warning.

WARNING: vmlinux - Section mismatch: reference to .init.text: from .text
between 'add_one_highpage_hotplug' (at offset 0xc0113d3f) and 'online_page'

Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Andi Kleen <ak@suse.de>
2007-01-11 01:52:44 +01:00
Muli Ben-Yehuda
b92cc55923 [PATCH] x86-64: tighten up printks
Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
2007-01-11 01:52:44 +01:00
Jack Steiner
ed5316d445 [PATCH] x86-64: - Ignore long SMI interrupts in clock calibration
Ensure that no SMI interrupts occur between the read of the HPET & TSC
in the clock calibration loop.

I noticed that a 2.66GHz system incorrectly detected the processor
clock speed about 1/7 of the time:

	time.c: Detected 2660.005 MHz processor.	(most of the time)
	time.c: Detected 2988.203 MHz processor.	(sometime)

The problem is caused by an SMI interrupt occuring in hpet_calibrate_tsc()
between the read of the HPET & TSC. Prior to switching the BIOS into
ACPI mode, it appears that every 27msec an SMI interrupt occurs. The
SMI interrupt takes 4.8 msec to process.

Note: On my test system, TICK_MIN had to be >380. I picked 5000
to minimize risk of having a value that is too small for other
platforms.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andi Kleen <ak@suse.de>

 arch/x86_64/kernel/time.c |   25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)
2007-01-11 01:52:44 +01:00
Vivek Goyal
e96763d6e5 [PATCH] i386: make apic probe function non-init
o struct genapic contains pointer to probe() function which is of type
  __init. Hence MODPOST generates warning if kernel is compiled with
  CONFIG_RELOCATABLE=y for i386.

WARNING: vmlinux - Section mismatch: reference to .init.text: from .data between 'apic_summit' (at offset 0xc058b504) and 'apic_bigsmp'
WARNING: vmlinux - Section mismatch: reference to .init.text: from .data between 'apic_bigsmp' (at offset 0xc058b5a4) and 'cpu.4471'
WARNING: vmlinux - Section mismatch: reference to .init.text: from .data between 'apic_es7000' (at offset 0xc058b644) and 'apic_default'
WARNING: vmlinux - Section mismatch: reference to .init.text: from .data between 'apic_default' (at offset 0xc058b6e4) and 'interrupt'

o One of the possible options is to put special case check in MODPOST to
  not emit warnings for this case but I think it is not a very good option
  in terms of maintenance.

o Another option is to make probe() function non __init. Anyway this function
  is really small so not freeing this memory after init is not a big deal.
  Secondly, from a programming perspective, probably genapic should not
  provide pointers to functions which have been freed as genapic is non
  __init and is used even after initialization is complete.

Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
2007-01-11 01:52:44 +01:00
Vivek Goyal
4a5d107a9a [PATCH] i386: cpu hotplug/smpboot misc MODPOST warning fixes
o Misc smpboot/cpu hotplug path cleanups. I did those to supress the
  warnings generated by MODPOST. These warnings are visible only
  if CONFIG_RELOCATABLE=y.

o CONFIG_RELOCATABLE compiles the kernel with --emit-relocs option. This
  option retains relocation information in vmlinux file and MODPOST
  is quick to spit out "Section mismatch" warnings.

o This patch fixes some of those warnings. Many of the functions in
  smpboot case are __devinit type and they in turn accesses text/data which
  if of type __cpuinit. Now if CONFIG_HOTPLUG=y and CONFIG_HOTPLUG_CPU=n
  then we end up in cases where a function in .text segment is calling
  another function in .init.text segment and MODPOST emits warning.

WARNING: vmlinux - Section mismatch: reference to .init.text:identify_cpu from .text between 'smp_store_cpu_info' (at offset 0xc011020d) and 'do_boot_cpu'
WARNING: vmlinux - Section mismatch: reference to .init.text:init_gdt from .text between 'do_boot_cpu' (at offset 0xc01102ca) and '__cpu_up'
WARNING: vmlinux - Section mismatch: reference to .init.text:print_cpu_info from .text between 'do_boot_cpu' (at offset 0xc01105d0) and '__cpu_up'

o It also fixes the issues where CONFIG_HOTPLUG_CPU=y and start_secondary()
  is calling smp_callin() which in-turn calls synchronize_tsc_ap() which is
  of type __init. This should have meant broken CPU hotplug.

WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between 'start_secondary' (at offset 0xc011603f) and 'initialize_secondary'
WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between 'MP_processor_info' (at offset 0xc0116a4f) and 'mp_register_lapic'
WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between 'MP_processor_info' (at offset 0xc0116a4f) and 'mp_register_lapic'

Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Andi Kleen <ak@suse.de>
2007-01-11 01:52:44 +01:00
Andi Kleen
7c8809aef0 [PATCH] i386: Update defconfig
Signed-off-by: Andi Kleen <ak@suse.de>
2007-01-11 01:52:44 +01:00
Andi Kleen
03c3cc6128 [PATCH] x86-64: Update defconfig
Signed-off-by: Andi Kleen <ak@suse.de>
2007-01-11 01:52:44 +01:00
Alexander Bigga
8a93c4968f [MIPS] Alchemy: Fix PCI-memory access
The problem was introduced in 2.6.18.3 with the casting of some
    36bit-defines (PCI memory) in au1000.h to resource_size_t which may be
    u32 or u64 depending on the experimental CONFIG_RESOURCES_64BIT.
    
    With unset CONFIG_RESOURCES_64BIT, the pci-memory cannot be accessed
    because the ioremap in arch/mips/au1000/common/pci.c already used the
    truncated addresses.
    With set CONFIG_RESOURCES_64BIT, things get even worse, because PCI-scan
    aborts, due to resource conflict: request_resource() in arch/mips/pci/pci.c
    fails because the maximum iomem-address is 0xffffffff (32bit) but the
    pci-memory-start-address is 0x440000000 (36bit).
    
    To get pci working again, I propose the following patch:
    
    1. remove the resource_size_t-casting from au1000.h again
    2. make the casting in arch/mips/au1000/common/pci.c (it's allowed and
    necessary here. The 36bit-handling will be done in __fixup_bigphys_addr).
    
    With this patch pci works again like in 2.6.18.2, the gcc-compile warnings
    in pci.c are gone and it doesn't depend on CONFIG_EXPERIMENTAL.
    
    Signed-off-by: Alexander Bigga <ab@mycable.de>
    Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

---
2007-01-10 20:02:24 +00:00
Atsushi Nemoto
e16d8df0be [MIPS] Fix N32 SysV IPC routines
Add wrappers for N32 msg{snd,rcv}.  compat_sys_msg{snd,rcv} can not not be
used as system call entries as is.  This fix is based on Kaz Kylheku's
patch.

Also change a type of last argument of sysn32_semctl to match its true
size.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-01-10 20:02:24 +00:00
Atsushi Nemoto
6b4cd27550 [MIPS] PNX8550: Fix system timer initialization
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-01-10 20:02:23 +00:00
Linus Torvalds
8ba1f27982 Merge branch 'merge' of master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Fix bugs in the hypervisor call stats code
  [POWERPC] Fix corruption in hcall9
  [POWERPC] iSeries: fix setup initcall
  [POWERPC] iSeries: fix viopath initialisation
  [POWERPC] iSeries: fix lpevents initialisation
  [POWERPC] iSeries: fix proc/iSeries initialisation
  [POWERPC] iSeries: fix mf proc initialisation
  [POWERPC] disable PReP and EFIKA during make oldconfig
  [POWERPC] Fix mpc52xx serial driver to work for arch/ppc again
  [POWERPC] Don't include powerpc/sysdev/rom.o for arch/ppc builds
  [POWERPC] Fix mpc52xx fdt to use correct device_type for sound devices
  [POWERPC] 52xx: Don't use device_initcall to probe of_platform_bus
  [POWERPC] Add legacy iSeries to ppc64_defconfig
  [POWERPC] Update ppc64_defconfig
  [POWERPC] Fix manual assembly WARN_ON() in enter_rtas().
  [POWERPC] Avoid calling get_irq_server() with a real, not virtual irq.
  [POWERPC] Fix unbalanced uses of of_node_put
  [POWERPC] Fix bogus BUG_ON() in in hugetlb_get_unmapped_area()
2007-01-09 09:35:16 -08:00
Heiko Carstens
d8ad075ef6 [S390] don't call handle_mm_fault() if in an atomic context.
There are several places in the futex code where a spin_lock is held
and still uaccesses happen. Deadlocks are avoided by increasing the
preempt count. The pagefault handler will then not take any locks
but will immediately search the fixup tables.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-01-09 10:18:50 +01:00
Heiko Carstens
de338a3795 [S390] Fix vmalloc area size calculation.
setup_memory_end() uses VMALLOC_END instead of VMALLOC_END_INIT to
calculate the maximum supported size of physical memory. Since
VMALLOC_END is zero, this will cause a crash on 31 bit systems.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-01-09 10:18:47 +01:00
Heiko Carstens
6721f77810 [S390] Fix cpu hotplug (missing 'online' attribute).
72486f1f8f inverts the logic if an
'online' attribute in /sys/devices/system/cpu/cpuX should appear.
So we end up with no hotpluggable cpus at all...
Set the hotpluggable value to one to make sure the online
attribute appears again.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-01-09 10:18:44 +01:00