Commit Graph

8573 Commits

Author SHA1 Message Date
Andi Kleen
61c11341ed [PATCH] x86-64: Remove esr disable hack in APIC code
This was just needed for the Numasaurus, which fortunately
doesn't support x86-64 CPUs.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-12 10:49:55 -07:00
Andi Kleen
eddfb4ed29 [PATCH] x86-64: Remove obsolete APIC "write around" bug workaround
No x86-64 chipset has this bug

Generated code doesn't change because it was always disabled.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-12 10:49:55 -07:00
Andi Kleen
c1507eb2ee [PATCH] x86-64: Remove apic_write_around from smpboot.c
We don't do workarounds for ancient hardware bugs.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-12 10:49:55 -07:00
Andi Kleen
affc9b8449 [PATCH] x86-64: Update defconfig
Allow diskless booting.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-12 10:49:55 -07:00
Andi Kleen
f343bb4cd7 [PATCH] x86{-64}: Remove old hack that disabled mmconfig support on AMD systems.
Now that Greg implemented MCFG/_SEG support this shouldn't be needed
anymore

Cc: gregkh@suse.de

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-12 10:49:55 -07:00
Paul Jackson
b3426599af [PATCH] cpuset semaphore depth check optimize
Optimize the deadlock avoidance check on the global cpuset
semaphore cpuset_sem.  Instead of adding a depth counter to the
task struct of each task, rather just two words are enough, one
to store the depth and the other the current cpuset_sem holder.

Thanks to Nikita Danilov for the idea.

Signed-off-by: Paul Jackson <pj@sgi.com>

[ We may want to change this further, but at least it's now
  a totally internal decision to the cpusets code ]

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-12 09:16:27 -07:00
Evgeniy Polyakov
f24ec7f6c6 [PATCH] crc16: remove w1 specific comments.
Remove w1 comments from crc16.h and move specific constants into
w1_ds2433.c where they are used.

Replace %d with %zd.

Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-12 08:48:08 -07:00
Linus Torvalds
26cda988ba Merge master.kernel.org:/pub/scm/linux/kernel/git/paulus/ppc64-2.6 2005-09-12 08:33:53 -07:00
Linus Torvalds
1df5c10a5b Mark ia64-specific MCA/INIT scheduler hooks as dangerous
..and only enable them for ia64. The functions are only valid
when the whole system has been totally stopped and no scheduler
activity is ongoing on any CPU, and interrupts are globally
disabled.

In other words, they aren't useful for anything else. So make
sure that nobody can use them by mistake.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-12 07:59:21 -07:00
Roland McGrath
c3ff8ec31c [PATCH] i386: Don't miss pending signals returning to user mode after signal processing
Signed-off-by: Roland McGrath <roland@redhat.com>
Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-12 07:52:16 -07:00
Anton Blanchard
2d909d08db [PATCH] ppc64: Remove unused code
ppc64_attention_msg and ppc64_dump_msg are not used so remove them.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-09-12 17:19:12 +10:00
Anton Blanchard
1ed2fd2d3a [PATCH] ppc64: Fix for missing start-cpu rtas token
If the rtas start-cpu token doesnt exist then presume the cpu is already
spinning. If it isnt we will catch it later on when the cpu doesnt
respond.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-09-12 17:19:12 +10:00
Anton Blanchard
3238e9c973 [PATCH] ppc64: indent pci code
Fix up some badly indented code.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-09-12 17:19:12 +10:00
Anton Blanchard
26370322d8 [PATCH] ppc64: xics cleanup
A few xics cleanups:

- Make some things static.
- Be more consistent with error printing - interrupts are unsigned,
  error values are signed.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-09-12 17:19:12 +10:00
Anton Blanchard
fd9648dff6 [PATCH] ppc64: Add ptrace data breakpoint support
Add hardware data breakpoint support.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-09-12 17:19:12 +10:00
Anton Blanchard
a94d308513 [PATCH] ppc64: Add definitions for new PTRACE calls
- Add PTRACE_GET_DEBUGREG/PTRACE_SET_DEBUGREG. The definition is
  as follows:

/*
 * Get or set a debug register. The first 16 are DABR registers and the
 * second 16 are IABR registers.
 */
#define PTRACE_GET_DEBUGREG    25
#define PTRACE_SET_DEBUGREG    26

  DABR == data breakpoint and IABR = instruction breakpoint in IBM
  speak. We could split out the IABR into 2 more ptrace calls but I
  figured there was no need and 16 DABR registers should be more
  than enough (POWER4/POWER5 have one).

- Add 2 new SIGTRAP si_codes: TRAP_HWBKPT and TRAP_BRANCH. I couldnt
  find any standards on either of these so I copied what ia64 is
  doing. Again this might be better placed in
  include/asm-generic/siginfo.h

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-09-12 17:19:12 +10:00
Anton Blanchard
df09ce4a15 [PATCH] ppc64: Fix up some whitespace issues in ptrace32.c
Fix up some whitespace issues in ptrace32.c

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-09-12 17:19:12 +10:00
Anton Blanchard
a0987224dc [PATCH] ppc64: ptrace cleanups
- Remove the PPC_REG* defines
- Wrap some more stuff with ifdef __KERNEL__
- Add missing PT_TRAP, PT_DAR, PT_DSISR defines
- Add PTRACE_GETEVRREGS/PTRACE_SETEVRREGS, even though we dont use it on
  ppc64 we dont want to allocate them for something else.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-09-12 17:19:12 +10:00
Robert Jennings
962bca7f38 [PATCH] ppc64: Add PTRACE_{GET|SET}VRREGS
The ptrace get and set methods for VMX/Altivec registers present in the
ppc tree were missing for ppc64.  This patch adds the 32-bit and
64-bit methods.  Updated with the suggestions from Anton following the lines
of his code snippet.

Added:
 - flush_altivec_to_thread calls as suggested by Anton
 - piecewise copy of structure to preserve 32-bit vrsave data as per
   Anton

(I consolidated the 32 and 64bit versions with 2 helper macros - Anton)

Signed-off-by: Robert C Jennings <rcjenn@austin.ibm.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-09-12 17:19:11 +10:00
Paul Mackerras
4267292b0f ppc64: Set up PCI tree from Open Firmware device tree
This adds code which gives us the option on ppc64 of instantiating the
PCI tree (the tree of pci_bus and pci_dev structs) from the Open
Firmware device tree rather than by probing PCI configuration space.
The OF device tree has a node for each PCI device and bridge in the
system, with properties that tell us what addresses the firmware has
configured for them and other details.

There are a couple of reasons why this is needed.  First, on systems
with a hypervisor, there is a PCI-PCI bridge per slot under the PCI
host bridges.  These PCI-PCI bridges have special isolation features
for virtualization.  We can't write to their config space, and we are
not supposed to be reading their config space either.  The firmware
tells us about the address ranges that they pass in the OF device
tree.

Secondly, on powermacs, the interrupt controller is in a PCI device
that may be behind a PCI-PCI bridge.  If we happened to take an
interrupt just at the point when the device or a bridge on the path to
it was disabled for probing, we would crash when we try to access the
interrupt controller.

I have implemented a platform-specific function which is called for
each PCI bridge (host or PCI-PCI) to say whether the code should look
in the device tree or use normal PCI probing for the devices under
that bridge.  On pSeries machines we use the device tree if we're
running under a hypervisor, otherwise we use normal probing.  On
powermacs we use normal probing for the AGP bridge, since the device
for the AGP bridge itself isn't shown in the device tree (at least on
my G5), and the device tree for everything else.

This has been tested on a dual G5 powermac, a partition on a POWER5
machine (running under the hypervisor), and a legacy iSeries
partition.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-09-12 17:17:36 +10:00
Antonino A. Daplas
c93a777103 [PATCH] i810fb: Update i810fb documentation
Update i810fb documentation to describe new features and configuration
changes.

Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-11 20:43:48 -07:00
Antonino A. Daplas
747a5054c0 [PATCH] i810fb: Change option ext_vga to extvga to match documentation
Reported by: Manuel Lauss <mano@roarinelk.homelinux.net>

He was getting random initial video modes depending on the kernel
configuration.  His option line includes 'extvga'.

The i810fb documentation describes the option 'extvga', however the
driver accepts 'ext_vga'.  Besides 'extvga' being ignored by i810fb,
it also confuses the option parser of i810fb and assigns 'extvga' to
'mode_option'.  This leads to an incorrect video mode at boot time.

Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-11 20:43:47 -07:00
Antonino A. Daplas
595e8a97f4 [PATCH] i810fb: Restore xres and yres option parameters
If i810fb successfully probed for the EDID, it will disregard the
boot option parameters 'xres' and 'yres'.  Fix this regression.

Excellent testing done by Manuel Lauss <mano@roarinelk.homelinux.net>.

Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-11 20:43:47 -07:00
Antonino A. Daplas
883f645107 [PATCH] i810fb: Fix oops if CONFIG_FB_I810_I2C is set to no
Reported by: Manuel Lauss <mano@roarinelk.homelinux.net>

compiled with CONFIG_FB_I810_I2C = n and CONFIG_FB_I810 = y
it oopses at boot in file drivers/video/i810/i810_main.c:1884

...
Unable to handle kernel NULL pointer dereference at virtual address 00000054
printing eip:
c02543c0
*pde = 00000000
Oops: 0000 [#1]
last sysfs file:
Modules linked in:
CPU:    0
EIP:    0060:[<c02543c0>]    Not tainted VLI
EFLAGS: 00010286   (2.6.13-mm2)
EIP is at i810fb_find_init_mode+0x53/0x93
eax: c113ddd4   ebx: c1194000   ecx: c04be2dd   edx: c1194000
esi: c1194008   edi: c113ddd4   ebp: c1194240   esp: c113ddcc
ds: 007b   es: 007b   ss: 0068

struct fb_monspecs *specs is initialized to NULL causing the oops.

Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-11 20:43:47 -07:00
Greg Ungerer
81d4903d2d [PATCH] m68knommu: common RAM based 68360 startup code
Create common start code for all 68360 based platforms that are
loaded and run directly from RAM (as opposed to running from
flash/ROM). This replaces the old specific startup code for
each board.

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-11 20:43:47 -07:00
Greg Ungerer
d871629b83 [PATCH] m68knommu: allow for SDRAM and GPIO differences on 5270/1 and 5274/5 processors
Allow for differences in the SDRAM controller setup and GPIO pin setup
of the 5270/1 and 5274/5 parts. With separate config options for each
now this no longer needs to be board specific.

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-11 20:43:47 -07:00
Greg Ungerer
2d9d166e1c [PATCH] m68knommu: FEC eth definitions support for the 523x Coldfire processor family
Add support for the FEC ethernet driver of the Freescale 523x processor
family to the FEC header definitions.

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-11 20:43:47 -07:00
Greg Ungerer
7ce4d42503 [PATCH] m68knommu: add SPI register definitions for 528x processors
Add QSPI register definitions of ColdFIre 528x processor SPI controller.

Patch originally submitted by Derek Cheung <derek.cheung@sympatico.ca>

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-11 20:43:47 -07:00
Greg Ungerer
66aa2b4b1c [PATCH] uclinux: add NULL check, 0 end valid check and some more exports to nommu.c
Move call to get_mm_counter() in update_mem_hiwater() to be
inside the check for tsk->mm being null. Otherwise you can be
following a null pointer here. This patch submitted by
Javier Herrero <jherrero@hvsistemas.es>.

Modify the end check for munmap regions to allow for the
legacy behavior of 0 being valid. Pretty much all current
uClinux system libc malloc's pass in 0 as the end point.
A hard check will fail on these, so change the check so
that if it is non-zero it must be valid otherwise it fails.
A passed in value will always succeed (as it used too).

Also export a few more mm system functions - to be consistent
with the VM code exports.

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-11 20:43:47 -07:00
Greg Ungerer
966cdb2fdf [PATCH] m68knommu: dma support for 523x processors
Support the DMA unit of the ColdFire 523x processor family.

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-11 20:43:46 -07:00
Greg Ungerer
f6515db47e [PATCH] uclinux: remove use of mtd_put_device() in uclinux MTD map driver
We should not call mtd_put_device() in the uclinux MTD map driver.
Also consistently use phys/virt fields of maps map_info struct,
instead of mixing it with map_priv_1.

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-11 20:43:46 -07:00
Greg Ungerer
b0433b9933 [PATCH] m68knommu: add ColdFire serial driver support for 523x processor family
Add support for the new Freescale 523x processor family to ColdFire
serial driver. Also set different default baud rate for MOD5272
board.

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-11 20:43:46 -07:00
Greg Ungerer
9c1ee9387c [PATCH] m68knommu: change addr arg to const in bitops.h/find_next_zero_bit()
Change addr arg to find_next_zero_bit to be a const.
Cleans up compiler warning.

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-11 20:43:46 -07:00
Greg Ungerer
df28f34bf9 [PATCH] m68knommu: correct prototype args in checksum.h
Bring arg types for csum_partial_copy and csum_paritial_copy_from_user
prototypes into line with their actual implementation.

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-11 20:43:46 -07:00
Greg Ungerer
42ae766fff [PATCH] m68knommu: common ROM/flash based 68360 startup code
Create common start code for all 68360 based platforms that are
loaded and run directly from ROM/flash (as opposed to running from
RAM). This replaces the old specific startup code for each board.

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-11 20:43:46 -07:00
Greg Ungerer
8a6e43e9ee [PATCH] m68knommu: cache support for 523x/528x processors
Add support for the cache of the ColdFIre 523x family of processors.
Enable the 528x cache by default now, all final shipping silicon
has the cache bug fixed.

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-11 20:43:46 -07:00
Greg Ungerer
7dd6a2aa27 [PATCH] m68knommu: ColdFire FEC eth driver improvements
A few improvements to the Freescale/ColdFire FEC driver:

. some formatting cleanups
. add support for the FEC device in the ColdFire 523x processor family
. add support for MAC address setting on MOD5272 and M5272C3 boards
. don't re-read the PHY status register many times
. ack status interrupt before reading status register
. move printing init message to after full init (so that the
  ethX name is filled out for printing)

Some parts of this patch submitted by Philippe De Muyter <phdm@macqel.be>

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-11 20:43:46 -07:00
Greg Ungerer
2af6921f63 [PATCH] m68knommu: config support for FEC eth of 523x Coldfire processor family
Add configuration support for the FEC ethernet controller in the
Freescale 523x processor family. Also add and option to configure
the second FEC controller on some Freescale processors.

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-11 20:43:46 -07:00
Linus Torvalds
357d596bd5 Merge branch 'release' of master.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6 2005-09-11 15:51:40 -07:00
Tony Luck
d67eb16f5d Pull sn-features into release branch 2005-09-11 14:34:23 -07:00
Tony Luck
c85b2a5fe2 Pull sim-fixes into release branch 2005-09-11 14:27:15 -07:00
Keith Owens
49a28cc8fd [IA64] MCA/INIT: remove obsolete unwind code
Delete the special case unwind code that was only used by the old
MCA/INIT handler.

Signed-off-by: Keith Owens <kaos@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-09-11 14:09:34 -07:00
Keith Owens
05f335ea04 [IA64] MCA/INIT: remove the physical mode path from minstate.h
Remove the physical mode path from minstate.h.

Signed-off-by: Keith Owens <kaos@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-09-11 14:09:12 -07:00
Keith Owens
7f613c7d22 [PATCH] MCA/INIT: use per cpu stacks
The bulk of the change.  Use per cpu MCA/INIT stacks.  Change the SAL
to OS state (sos) to be per process.  Do all the assembler work on the
MCA/INIT stacks, leaving the original stack alone.  Pass per cpu state
data to the C handlers for MCA and INIT, which also means changing the
mca_drv interfaces slightly.  Lots of verification on whether the
original stack is usable before converting it to a sleeping process.

Signed-off-by: Keith Owens <kaos@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-09-11 14:08:41 -07:00
Keith Owens
289d773ee8 [IA64] MCA/INIT: avoid reading INIT record during INIT event
Reading the INIT record from SAL during the INIT event has proved to be
unreliable, and a source of hangs during INIT processing.  The new
MCA/INIT handlers remove the need to get the INIT record from SAL.
Change salinfo.c so mca.c can just flag that a new record is available,
without having to read the record during INIT processing.  This patch
can be applied without the new MCA/INIT handlers.

Also clean up some usage of NR_CPUS which should have been using
cpu_online().

Signed-off-by: Keith Owens <kaos@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-09-11 14:02:43 -07:00
Keith Owens
e619ae0b96 [IA64] MCA/INIT: add an extra thread_info flag
Add an extra thread_info flag to indicate the special MCA/INIT stacks.
Mainly for debuggers.

Signed-off-by: Keith Owens <kaos@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-09-11 14:02:10 -07:00
Keith Owens
a2a979821b [PATCH] MCA/INIT: scheduler hooks
Scheduler hooks to see/change which process is deemed to be on a cpu.

Signed-off-by: Keith Owens <kaos@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-09-11 14:01:30 -07:00
Sam Ravnborg
e6c69bd391 mips: rename offsets.c to asm-offsets.c
Cannot build MIPS now.
We need to change offset.c to asm-offsets.c

Signed-off-by: Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2005-09-11 22:35:18 +02:00
Sam Ravnborg
5011cdd01b kbuild: fix silentoldconfig with make O=
Al Viro reported that sometimes silentoldconfig failed because
output directory was missing.
So create it unconditionally before executing conf

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2005-09-11 22:32:57 +02:00
Sam Ravnborg
5bb7826900 kbuild: rename prepare to archprepare to fix dependency chain
When introducing the generic asm-offsets.h support the dependency
chain for the prepare targets was changed. All build scripts expecting
include/asm/asm-offsets.h to be made when using the prepare target would broke.
With the limited number of prepare targets left in arch Makefiles
the trivial solution was to introduce a new arch specific target: archprepare

The dependency chain looks like this now:

prepare
  |
  +--> prepare0
         |
         +--> archprepare
                |
		+--> scripts_basic
                +--> prepare1
                       |
                       +---> prepare2
                               |
                               +--> prepare3

So prepare 3 is processed before prepare2 etc.
This guaantees that the asm symlink, version.h, scripts_basic
are all updated before archprepare is processed.

prepare0 which build the asm-offsets.h file will need the
actions performed by archprepare.

The head target is now named prepare, because users scripts will most
likely use that target, but prepare-all has been kept for compatibility.
Updated Documentation/kbuild/makefiles.txt.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2005-09-11 22:30:22 +02:00