Commit Graph

13989 Commits

Author SHA1 Message Date
Benjamin Herrenschmidt
6ad8d010b2 [POWERPC] Fix possible access to free pages
I think we have a subtle race on ppc64 with the tlb batching.  The
common code expects tlb_flush() to actually flush any pending TLB
batch.  It does that because it delays all page freeing until after
tlb_flush() is called, in order to ensure no stale reference to
those pages exist in any TLB, thus causing potential access to
the freed pages.

However, our tlb_flush only triggers the RCU for freeing page
table pages, it does not currently trigger a flush of a pending
TLB/hash batch, which is, I think, an error.  This fixes it.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-02 21:01:55 +10:00
Linus Torvalds
f285e3d329 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: Install firewire-constants.h and firewire-cdev.h for userspace.
  firewire: Change struct fw_cdev_iso_packet to not use bitfields.
  firewire: Implement suspend/resume PCI driver hooks.
  firewire: add to MAINTAINERS
  firewire: fw-sbp2: implement sysfs ieee1394_id
  ieee1394: sbp2: offer SAM-conforming target port ID in sysfs
  ieee1394: fix calculation of sysfs attribute "address"
2007-06-01 08:28:15 -07:00
Maciej W. Rozycki
b11115c153 serial_core.h: include <linux/sysrq.h>
The <linux/serial_core.h> header refers to handle_sysrq(), but does not
include <linux/sysrq.h> which provides a declaration of the function.  This
may result in an implicit declaration and a warning if the actual one is
seen later on.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-01 08:18:29 -07:00
Satoru Takeuchi
62e5b05db6 Better documentation for ERESTARTSYS
Add comment for errnos related to restart syscall to avoid the leakage of
them to user programs.

Signed-off-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Acked-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-01 08:18:29 -07:00
Jay Estabrook
d7083174a2 ALPHA: misc fixes
1. arch/alpha/Kconfig

   several adjustments:
      a) additions to the systems list and cleanup of same
      b) change limits of NR_CPUS and make dep. on platform

   Note that MARVEL support is limited to 32 CPUs whan using
   42-bit KSEG - one needs 48-bit KSEG to handle up to 64, and
   we've never supported 48-bit KSEG.

2. include/asm-alpha/core_wildfire.h

   fix a typo that undoubtedly prevents WILDFIRE support
   from working

Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-01 08:18:29 -07:00
Jay Estabrook
5ae0b6c704 ALPHA: correct low-level I/O routines for sable-lynx
This code corrects the behavior of the t2_readX/t2_writeX routines,
and t2_ioreadNN/t2_iowriteNN routines.

The value T2_DENSE_MEM is now subtracted from the "xaddr" argument in
each of the readX/writeX routines, since those routines may be called
directly, rather than always through the ioreadNN/iowriteNN routines.

Examples of the direct calls, via the __raw_readX/writeX macros, are
the memcpy_fromio/toio, _memset_c_io, and scr_memcpyw routines.

Signed-off-by: Jay Estabrook <jay.estabrook@hp.com>
Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-01 08:18:29 -07:00
Jay Estabrook
025a22151c ALPHA: support graphics on non-zero PCI domains
This code replaces earlier and incomplete handling of graphics on non-zero PCI
domains (aka hoses or peer PCI buses).

An option (CONFIG_VGA_HOSE) is set TRUE if configuring a GENERIC kernel, or a
kernel for MARVEL, TITAN, or TSUNAMI machines, as these are the machines whose
SRM consoles are capable of configuring and handling graphics options on
non-zero hoses.  All other machines have the option set FALSE.

A routine, "find_console_vga_hose()", is used to find the graphics device
which the machine's firmware believes is the console device, and it sets a
global (pci_vga_hose) for later use in managing access to the device.  This is
called in "init_arch" on TITAN and TSUNAMI machines; MARVEL machines use a
custom version of this routine because of extra complexity.

A routine, "locate_and_init_vga()", is used to find the graphics device and
set a global (pci_vga_hose) for later use in managing access to the device, in
the case where "find_console_vga_hose" has failed.

Various adjustments are made to the ioremap and ioportmap routines for
detecting and translating "legacy" VGA register and memory references to the
real PCI domain.

[akpm@linux-foundation.org: don't statically init bss]
[akpm@linux-foundation.org: build fix]
Signed-off-by: Jay Estabrook <jay.estabrook@hp.com>
Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-01 08:18:29 -07:00
Yoshinori Sato
8778beb981 h8300 trival patches
- warning fix.
- call trace area check fix.
- There is no meaning, ' & ' it deletes

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-01 08:18:29 -07:00
Geert Uytterhoeven
9db71a188b fbdev: Move declaration of fb_class to <linux/fb.h>
Move the forward declaration of fb_class from drivers/video/console/fbcon.h to
<linux/fb.h>, together with the other forward declarations related to
drivers/video/fbmem.c.

This kills the following sparse warning:
| drivers/video/fbmem.c:1363:14: warning: symbol 'fb_class' was not declared. Should it be static?

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-01 08:18:28 -07:00
Jason Gaston
24faa9eef8 pci_ids: update patch for Intel ICH9M
This patch updates the Intel ICH9M LPC Controller DID's, due to a
specification change.

Signed-off-by: Jason Gaston <jason.d.gaston@intel.com>
Cc: <stable@kernel.org>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-01 08:18:28 -07:00
Zou Nan hai
2e1c49db4c x86_64: allocate sparsemem memmap above 4G
On systems with huge amount of physical memory, VFS cache and memory memmap
may eat all available system memory under 4G, then the system may fail to
allocate swiotlb bounce buffer.

There was a fix for this issue in arch/x86_64/mm/numa.c, but that fix dose
not cover sparsemem model.

This patch add fix to sparsemem model by first try to allocate memmap above
4G.

Signed-off-by: Zou Nan hai <nanhai.zou@intel.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Andi Kleen <ak@suse.de>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-01 08:18:27 -07:00
Linus Torvalds
e984fd486f Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  Define/reserve new ext4 superblock fields
  When ext4_ext_insert_extent() fails to insert new blocks
  ext4: Extent overlap bugfix
  Remove unnecessary exported symbols.
  EXT4: Fix whitespace
2007-06-01 07:49:18 -07:00
Jay Cliburn
184b812f7d PCI: quirk disable MSI on via vt3351
The Via VT3351 APIC does not play well with MSI and unleashes a flood
of APIC errors when MSI is used to deliver interrupts.  The problem
was recently exposed when the atl1 network device driver, which enables
MSI by default, stimulated APIC errors on an Asus M2V mainboard, which
employs the Via VT3351.
See http://bugzilla.kernel.org/show_bug.cgi?id=8472 for additional
details on this bug.

Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-05-31 16:56:37 -07:00
Andy Gospodarek
e3008dedff PCI: disable MSI by default on systems with Serverworks HT1000 chips
I've been seeing lots of messages like these:

eth0: No interrupt was generated using MSI, switching to INTx mode.  Please
report this failure to the PCI maintainer and include system chipset
information.

On several systems that use the following Severworks HT1000 (also sometimes
labeled as a Broadcom chipset as well) bridge chips.  It doesn't appear MSI
works well (if at all) on these systems.

Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-05-31 16:56:36 -07:00
Theodore Ts'o
436bd75e47 Define/reserve new ext4 superblock fields
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2007-05-31 16:20:15 -04:00
Amit Arora
25d14f983f ext4: Extent overlap bugfix
This patch adds a check for overlap of extents and cuts short the
new extent to be inserted, if there is a chance of overlap.

Signed-off-by: Amit Arora <aarora@in.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2007-05-31 16:20:15 -04:00
Dave Kleikamp
8c55e20411 EXT4: Fix whitespace
Replace a lot of spaces with tabs

Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2007-05-31 16:20:14 -04:00
Kristian Høgsberg
ca9a7af35f firewire: Install firewire-constants.h and firewire-cdev.h for userspace.
This just adds them to include/linux/Kbuild using header-y.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-05-31 21:40:15 +02:00
Kristian Høgsberg
1ca31ae7cf firewire: Change struct fw_cdev_iso_packet to not use bitfields.
The struct is part of the userspace interface and can not use
bitfields.  This patch replaces the bitfields with a __u32 'control'
word and provides access macros to set the bits.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-05-31 21:40:15 +02:00
Linus Torvalds
54ca412336 Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fix
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fix:
  sparc64: fix alignment bug in linker definition script
2007-05-31 12:33:16 -07:00
Linus Torvalds
5983b12574 Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: support older gcc's
  sh: trivial build cleanups.
  sh: Fix vsyscall build failure.
  sh: Trivial fix for dma-api compile failure.
  sh: Fix pcrel too far for in_nmi label.
  sh: section mismatch fixes for system timer.
2007-05-31 09:15:42 -07:00
Linus Torvalds
8ac1c101ec Merge branch 'linus' of master.kernel.org:/pub/scm/linux/kernel/git/perex/alsa
* 'linus' of master.kernel.org:/pub/scm/linux/kernel/git/perex/alsa:
  [ALSA] version 1.0.14
  [ALSA] hda-codec - Fix STAC922x capture boost level
  [ALSA] hda-codec - Fix input with STAC92xx
  [ALSA] hda-codec - Fix pin configs for Gateway MX6453
  [ALSA] hda-codec - Add support for MSI K9N Ultra
  [ALSA] hda-codec - Add quirk for Supermicro PDSBA to alc883_cfg_tbl[]
  [ALSA] hda-codec - Add quirk for MSI S420
  [ALSA] Fix ASoC s3c24xx-pcm spinlock bug
  [ALSA] hda-intel: fix ASUS M2V detection
  [ALSA] ali5451 - Fix possible NULL dereference
  [ALSA] hda-codec - Add support for ASUS A8J modem
  [ALSA] HDA: Fix headphone mute issue on non-eapd Conexant systems
  [ALSA] HDA: Add more systems to Sigmatel codec
  [ALSA] HDA: Add support for Gateway NX860
2007-05-31 09:14:39 -07:00
Linus Torvalds
0e9871df23 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC]: Missing #include <linux/mm.h> in drivers/sbus/char/flash.c
  [SPARC32]: Build fix.
  [SPARC64]: Add missing NCS and SVC hypervisor interfaces.
2007-05-31 09:14:12 -07:00
Linus Torvalds
b9066c268a Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (24 commits)
  [IPSEC]: Add xfrm_sysctl.txt.
  [BRIDGE]: Round off STP perodic timers.
  [BRIDGE]: Reduce frequency of forwarding cleanup timer in bridge.
  [TCP] tcp_probe: use GCC printf attribute
  [TCP] tcp_probe: a trivial fix for mismatched number of printl arguments.
  [IPV6] ADDRCONF: Fix conflicts in DEVCONF_xxx constant.
  [NET] napi: Call __netif_rx_complete in netif_rx_complete
  [TCP]: Consolidate checking for tcp orphan count being too big.
  [SOCK]: Shrink struct sock by 8 bytes on 64-bit.
  [AF_PACKET]: Kill CONFIG_PACKET_SOCKET.
  [IPV6]: Fix build warning.
  [AF_PACKET]: Kill bogus CONFIG_PACKET_MULTICAST
  [IPV4]: Kill references to bogus non-existent CONFIG_IP_NOSIOCRT
  [IPSEC]: Fix panic when using inter address familiy IPsec on loopback.
  [NET]: parse ip:port strings correctly in in4_pton
  [IPV6] ROUTE: No longer handle ::/0 specially.
  [IPSEC]: Fix IPv6 AH calculation in outbound
  [XFRM]: xfrm_larval_drop sysctl should be __read_mostly.
  [XFRM]: Allow XFRM_ACQ_EXPIRES to be tunable via sysctl.
  [CASSINI]: Fix printk message typo.
  ...
2007-05-31 09:13:41 -07:00
Roman Zippel
12d810c1b8 m68k: discontinuous memory support
Fix support for discontinuous memory

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-31 07:58:14 -07:00
Roman Zippel
fbe9c96129 m68k: runtime patching infrastructure
Add the basic infrastructure to allow runtime patching of kernel and modules
to optimize a few functions with parameters, which are only calculated once
during bootup and are otherwise constant.  Use this for the conversion between
virtual and physical addresses.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-31 07:58:13 -07:00
Jaroslav Kysela
672cc6c6c7 [ALSA] version 1.0.14
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-05-31 11:03:27 +02:00
David S. Miller
dbbe3cb8cf [SPARC64]: Add missing NCS and SVC hypervisor interfaces.
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-31 01:52:48 -07:00
YOSHIFUJI Hideaki
4540250be1 [IPV6] ADDRCONF: Fix conflicts in DEVCONF_xxx constant.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-31 01:23:36 -07:00
Herbert Xu
b0ba66671a [NET] napi: Call __netif_rx_complete in netif_rx_complete
This patch kills a little bit of code duplication between the two
variants of netif_rx_complete.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-31 01:23:35 -07:00
Pavel Emelianov
e4fd5da39f [TCP]: Consolidate checking for tcp orphan count being too big.
tcp_out_of_resources() and tcp_close() perform the
same checking of number of orphan sockets. Move this
code into common place.

Signed-off-by: Pavel Emelianov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-31 01:23:34 -07:00
Arnaldo Carvalho de Melo
4e07a91c37 [SOCK]: Shrink struct sock by 8 bytes on 64-bit.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-31 01:23:32 -07:00
David S. Miller
01e67d08fa [XFRM]: Allow XFRM_ACQ_EXPIRES to be tunable via sysctl.
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-31 01:23:23 -07:00
Evgeniy Polyakov
66c5227ecd sh: trivial build cleanups.
Several errors were spotted during building for custom config (SMP
included). Although SMP still does not compile (no ipi and
__smp_call_function) and does not work, this looks a bit cleaner.
Some other errors obtained via gcc-4.1.0 build.

Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-31 13:46:21 +09:00
Richard Henderson
b927b3e2c9 alpha: support new syscalls
Some of the new syscalls require supporting TIF_RESTORE_SIGMASK.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-30 10:07:54 -07:00
Richard Henderson
74fd1b687f alpha: cleanup in bitops.h
Remove 2 functions private to the alpha implemetation,
in favor of similar functions in <linux/log2.h>.

Provide a more efficient version of the fls64 function
for pre-ev67 alphas.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-30 10:07:54 -07:00
Linus Torvalds
f54496f55a Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] Fix some section mismatch warnings
  [ARM] 4417/1: Serial: Fix AMBA drivers locking
  [ARM] 4394/1: ARMv7: Add the TLB range operations
  [ARM] 4410/1: Remove extern declarations in coyote/ixdpg425-pci.c
  [ARM] 4416/1: NWFPE: fix undeclared symbols
  [ARM] 4415/1: AML5900: fix sparse warnings from map_io
  [ARM] 4414/1: S3C2443: sparse fix for clock.c
  [ARM] 4412/1: S3C2412: reset errata fix
  [ARM] 4411/1: KS8695: Another serial driver fix
  [ARM] oprofile: avoid lockdep warnings on mpcore oprofile init
  [ARM] Fix stacktrace FP range checking
  [ARM] use __used attribute
  [ARM] enable arbitary speed tty ioctls and split input/output speed
  [ARM] remove unused header file: arch/arm/mach-s3c2410/bast.h
  [ARM] 4406/1: Trivial NSLU2 / NAS-100D header & setup code cleanup
  [ARM] 4405/1: NSLU2, DSM-G600 frequency fixup code
  [ARM] 4404/1: Trivial IXP42x Kconfig cleanup
  [ARM] 4403/1: Make the PXA-I2C driver work with lockdep validator
  [ARM] 4402/1: S3C2443: Add physical address of HSMMC controller
  [ARM] 4401/1: S3C2443: Add definitions for port GPIOJ
2007-05-30 10:04:01 -07:00
Catalin Marinas
2ccdd1e77d [ARM] 4394/1: ARMv7: Add the TLB range operations
We are currently using the ARMv6 operations but need to duplicate some
of the code because of the introduction of the new CPU barrier
instructions in ARMv7.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-30 14:32:07 +01:00
Ben Dooks
eca8c24241 [ARM] 4412/1: S3C2412: reset errata fix
The S3C2412 has an reset-errata where the clock
may cause a glitch switching back to EXTCLK. We
force a switch to EXTCLK before writing the
reset register to force use of the CLKCON sync
logic to properly switch.

Fix problem reported by Matthieu Castet.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-30 13:15:23 +01:00
David Rientjes
b91d8a1205 [ARM] use __used attribute
Use the newly introduced __used attribute in place of the deprecated
__attribute_used__.  Functionally the same.

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-30 13:15:06 +01:00
Thomas Gleixner
eaad084bb0 NOHZ: prevent multiplication overflow - stop timer for huge timeouts
get_next_timer_interrupt() returns a delta of (LONG_MAX > 1) in case
there is no timer pending. On 64 bit machines this results in a
multiplication overflow in tick_nohz_stop_sched_tick().

Reported by: Dave Miller <davem@davemloft.net>

Make the return value a constant and limit the return value to a 32 bit
value.

When the max timeout value is returned, we can safely stop the tick
timer device. The max jiffies delta results in a 12 days timeout for
HZ=1000.

In the long term the get_next_timer_interrupt() code needs to be
reworked to return ktime instead of jiffies, but we have to wait until
the last users of the original NO_IDLE_HZ code are converted.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-29 18:11:10 -07:00
Sam Ravnborg
4096b46f01 sparc64: fix alignment bug in linker definition script
The RO_DATA section were hardcoded to a specific
alignment in include/asm-generic/vmlinux.h.
But for sparc64 this did not match the PAGE_SIZE.

Introduce a new section definition named:
RO_DATA that takes actual alignment as parameter.
RODATA are provided for backward compatibility.

On top of this avoid hardcoding alignment for
sparc64 in reset of the script
Fix is build-tested on sparc64 + x86_64.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-05-29 21:29:00 +02:00
David S. Miller
7db35f31cb [SPARC64]: Fill holes in hypervisor APIs and fix KTSB registry.
Several interfaces were missing and others misnumbered or
improperly documented.

Also, make sure to check the return value when registering
the kernel TSBs with the hypervisor.  This helped to find
the 4MB kernel TSB alignment bug fixed in a previous changeset.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-29 02:52:15 -07:00
David S. Miller
2d9e2763c2 [SPARC64]: Fix two bugs wrt. kernel 4MB TSB.
1) The TSB lookup was not using the correct hash mask.

2) It was not aligned on a boundary equal to it's size,
   which is required by the sun4v Hypervisor.

wasn't having it's return value checked, and that bug will be fixed up
as well in a subsequent changeset.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-29 02:51:38 -07:00
Kyle McMartin
6197fe4d72 [SPARC]: Emulate cmpxchg like parisc
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-29 02:51:13 -07:00
David S. Miller
22adb358e8 [SPARC64]: Eliminate NR_CPUS limitations.
Cheetah systems can have cpuids as large as 1023, although physical
systems don't have that many cpus.

Only three limitations existed in the kernel preventing arbitrary
NR_CPUS values:

1) dcache dirty cpu state stored in page->flags on
   D-cache aliasing platforms.  With some build time
   calculations and some build-time BUG checks on
   page->flags layout, this one was easily solved.

2) The cheetah XCALL delivery code could only handle
   a cpumask with up to 32 cpus set.  Some simple looping
   logic clears that up too.

3) thread_info->cpu was a u8, easily changed to a u16.

There are a few spots in the kernel that still put NR_CPUS
sized arrays on the kernel stack, but that's not a sparc64
specific problem.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-29 02:49:49 -07:00
David S. Miller
5cbc307373 [SPARC64]: Use machine description and OBP properly for cpu probing.
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-29 02:49:41 -07:00
David S. Miller
22d6a1cba3 [SPARC64]: Report proper system soft state to the hypervisor.
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-29 02:49:29 -07:00
Christoph Hellwig
a1aadd55fb [SPARC64]: Kill unused DIE_PAGE_FAULT enum value.
sparc64 got rid of the pagefault notifiers, so the enum value for them
can go away aswell.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-29 02:49:14 -07:00
Alan Cox
3abc12012f [ARM] enable arbitary speed tty ioctls and split input/output speed
Add the ioctls and values needed for this to the ARM26/ARM32 ports.  The
actual code has been in the base kernel for a while and automatically turns
on when a port sets the required defines.

[RMK: also added termbits.h changes to avoid build breakage]

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-28 23:07:34 +01:00