Commit graph

10790 commits

Author SHA1 Message Date
Paul Mackerras
d5112a4f31 Merge branch 'for_paulus' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc into for-2.6.21 2007-02-08 15:03:11 +11:00
Paul Mackerras
12e86f92fc [POWERPC] Only use H_BULK_REMOVE if the firmware supports it
The previous patch changing pSeries to use H_BULK_REMOVE broke the
JS20 blade, where the firmware doesn't support H_BULK_REMOVE.  This
adds a firmware check so that on machines that don't have H_BULK_REMOVE,
we just use the H_REMOVE call as before.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-08 15:02:35 +11:00
Linus Torvalds
78149df6d5 Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (41 commits)
  Revert "PCI: remove duplicate device id from ata_piix"
  msi: Make MSI useable more architectures
  msi: Kill the msi_desc array.
  msi: Remove attach_msi_entry.
  msi: Fix msi_remove_pci_irq_vectors.
  msi: Remove msi_lock.
  msi: Kill msi_lookup_irq
  MSI: Combine pci_(save|restore)_msi/msix_state
  MSI: Remove pci_scan_msi_device()
  MSI: Replace pci_msi_quirk with calls to pci_no_msi()
  PCI: remove duplicate device id from ipr
  PCI: remove duplicate device id from ata_piix
  PCI: power management: remove noise on non-manageable hw
  PCI: cleanup MSI code
  PCI: make isa_bridge Alpha-only
  PCI: remove quirk_sis_96x_compatible()
  PCI: Speed up the Intel SMBus unhiding quirk
  PCI Quirk: 1k I/O space IOBL_ADR fix on P64H2
  shpchp: delete trailing whitespace
  shpchp: remove DBG_XXX_ROUTINE
  ...
2007-02-07 19:23:44 -08:00
Linus Torvalds
c96e2c9207 Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: (70 commits)
  USB: remove duplicate device id from zc0301
  USB: remove duplicate device id from usb_storage
  USB: remove duplicate device id from keyspan
  USB: remove duplicate device id from ftdi_sio
  USB: remove duplicate device id from visor
  USB: a bit more coding style cleanup
  usbcore: trivial whitespace fixes
  usb-storage: use first bulk endpoints, not last
  EHCI: fix interrupt-driven remote wakeup
  USB: switch ehci-hcd to new polling scheme
  USB: autosuspend for usb printer driver
  USB Input: Added kernel module to support all GTCO CalComp USB InterWrite School products
  USB: Sierra Wireless auto set D0
  USB: usb ethernet gadget recognizes HUSB2DEV
  USB: list atmel husb2_udc gadget controller
  USB: gadgetfs AIO tweaks
  USB: gadgetfs behaves better on userspace init bug
  USB: gadgetfs race fix
  USB: gadgetfs simplifications
  USB: gadgetfs cleanups
  ...
2007-02-07 19:23:21 -08:00
Eric W. Biederman
f7feaca77d msi: Make MSI useable more architectures
The arch hooks arch_setup_msi_irq and arch_teardown_msi_irq are now
responsible for allocating and freeing the linux irq in addition to
setting up the the linux irq to work with the interrupt.

arch_setup_msi_irq now takes a pci_device and a msi_desc and returns
an irq.

With this change in place this code should be useable by all platforms
except those that won't let the OS touch the hardware like ppc RTAS.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-07 15:50:08 -08:00
Eric W. Biederman
5b912c108c msi: Kill the msi_desc array.
We need to be able to get from an irq number to a struct msi_desc.
The msi_desc array in msi.c had several short comings the big one was
that it could not be used outside of msi.c.  Using irq_data in struct
irq_desc almost worked except on some architectures irq_data needs to
be used for something else.

So this patch adds a msi_desc pointer to irq_desc, adds the appropriate
wrappers and changes all of the msi code to use them.

The dynamic_irq_init/cleanup code was tweaked to ensure the new
field is left in a well defined state.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-07 15:50:08 -08:00
Michael Ellerman
0fcfdabbdb MSI: Remove pci_scan_msi_device()
pci_scan_msi_device() doesn't do anything anymore, so remove it.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-07 15:50:07 -08:00
Adrian Bunk
8255cf35d5 PCI: make isa_bridge Alpha-only
Since isa_bridge is neither assigned any value !NULL nor used on !Alpha, 
there's no reason for providing it.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-07 15:50:06 -08:00
Geoff Levand
6a6c957eba USB: ps3 ohci bus glue
USB OHCI driver bus glue for the PS3 game console.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-07 15:44:37 -08:00
Geoff Levand
ad75a41085 USB: ps3 ehci bus glue
USB EHCI driver bus glue for the PS3 game console.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-07 15:44:35 -08:00
Linus Torvalds
21d37bbc65 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: (140 commits)
  ACPICA: reduce table header messages to fit within 80 columns
  asus-laptop: merge with ACPICA table update
  ACPI: bay: Convert ACPI Bay driver to be compatible with sysfs update.
  ACPI: bay: new driver is EXPERIMENTAL
  ACPI: bay: make drive_bays static
  ACPI: bay: make bay a platform driver
  ACPI: bay: remove prototype procfs code
  ACPI: bay: delete unused variable
  ACPI: bay: new driver adding removable drive bay support
  ACPI: dock: check if parent is on dock
  ACPICA: fix gcc build warnings
  Altix: Add ACPI SSDT PCI device support (hotplug)
  Altix: ACPI SSDT PCI device support
  ACPICA: reduce conflicts with Altix patch series
  ACPI_NUMA: fix HP IA64 simulator issue with extended memory domain
  ACPI: fix HP RX2600 IA64 boot
  ACPI: build fix for IBM x440 - CONFIG_X86_SUMMIT
  ACPICA: Update version to 20070126
  ACPICA: Fix for incorrect parameter passed to AcpiTbDeleteTable during table load.
  ACPICA: Update copyright to 2007.
  ...
2007-02-07 15:36:08 -08:00
Kumar Gala
5fad293bcb [POWERPC] Fixup error handling when emulating a floating point instruction
When we do full FP emulation its possible that we need to post a SIGFPE based
on the results of the emulation.  The previous code ignored this case completely.

Additionally, the Soft_emulate_8xx case had two issues.  One, we should never
generate a SIGFPE since the code only does data movement.  Second, we were
interpreting the return codes incorrectly, it returns 0 on success, 1 on
illop and -EFAULT on a data access error.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-07 01:47:59 -06:00
Kumar Gala
04903a30a3 [POWERPC] Enable interrupts if we are doing fp math emulation
Anytime we are emulating an instruction we are going to be doing some form of
get_user() to get the instruction image to decode.  Since get_user() might
sleep we need to ensure we have interrupts enabled or we might see something
like:

Debug: sleeping function called from invalid context at arch/powerpc/kernel/traps.c:697
in_atomic():0, irqs_disabled():1
Call Trace:
[D6023EB0] [C0007F84] show_stack+0x58/0x174 (unreliable)
[D6023EE0] [C0022C34] __might_sleep+0xbc/0xd0
[D6023EF0] [C000D158] program_check_exception+0x1d8/0x4fc
[D6023F40] [C000E744] ret_from_except_full+0x0/0x4c
--- Exception: 700 at 0x102a7100
    LR = 0xdb9ef04

However, we want to ensure that interrupts are disabled when handling a trap
exception that might be used for a kernel breakpoint.  This is why ProgramCheck
is marked as EXC_XFER_STD instead of EXC_XFER_EE.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-07 01:13:32 -06:00
Kumar Gala
8209003547 [POWERPC] Added kprobes support to ppc32
Added kprobes to ppc32 platforms that have use single_step_exception.  This
excludes 4xx and anything Book-E since their debug mechanisms for single stepping
are completely different.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-06 22:55:19 -06:00
Paul Mackerras
8423200553 Merge branch 'linux-2.6' 2007-02-07 14:05:13 +11:00
Paul Mackerras
f03e64f2ca [POWERPC] Make pSeries use the H_BULK_REMOVE hypervisor call
H_BULK_REMOVE lets us remove 4 entries from the MMU hash table with one
hypervisor call.  This uses it in pSeries_lpar_hpte_invalidate so we
can tear down mappings with fewer hypervisor calls.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:23 +11:00
Paul Mackerras
e56a6e20f3 [POWERPC] Clear RI bit in MSR before restoring r13 when returning to userspace
Some instruction tracing tools use the RI (recoverable interrupt) bit
in the MSR to indicate when it's safe to single-step.  Currently we
clear RI after restoring r13 when returning to userspace.  However,
if we single-step past the point where r13 is restored, we'll corrupt
r13 in the exception entry code and not restore it.  This moves the
clearing of RI to just before r13 is restored so this doesn't happen.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:23 +11:00
Livio Soares
449d846dbc [POWERPC] Fix performance monitor exception
To the issue: some point during 2.6.20 development, Paul Mackerras
introduced the "lazy IRQ  disabling" patch (very cool work,  BTW).
In that patch, the performance monitor unit exception was marked as
"maskable", in the sense that if interrupts were soft-disabled, that
exception could be ignored.  This broke my PowerPC profiling code.
The symptom that I see is that a varying number of interrupts
(from 0 to $n$, typically closer to 0) get delivered, when, in
reality, it should always be very close to $n$.

The issue stems from the way masking is being done.   Masking in
this fashion seems to  work well with the decrementer and external
interrupts, because they are raised again until "really"  handled.
For the PMU, however, this does not apply (at least on my Xserver
machine with a 970FX processor).  If the PMU exception is not handled,
it will _not_ be re-raised (at least on my machine).  The documentation
states that the PMXE bit in MMCR0 is set to 0 when the PMU exception
is raised.  However, software must re-set the bit to re-enable PMU
exceptions.  If the exception is ignored (as currently) not only is
that interrupt lost, but because software does not re-set PMXE, the
PMU registers are "frozen" forever.

[This patch means that performance monitor exceptions are taken and
handled even if irqs are off, as long as some other interrupt hasn't
come along and caused interrupts to be hard-disabled.  In this sense
the PMU exception becomes like an NMI.  The oprofile code for most
powerpc processors does nothing that is unsafe in an NMI context, but
the Cell oprofile code does a spin_lock_irqsave.  However, that turns
out to be OK because Cell doesn't actually use the performance
monitor exception; performance monitor interrupts come in as a
regular interrupt on Cell, so will be disabled when irqs are off.
 -- paulus.]

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:23 +11:00
David Gibson
a2c70211fa [POWERPC] Compile fixes for arch/powerpc dcr code
The new dcr code does not currently compile when configured for native
DCR access on ARCH=powerpc.  This patch fixes the problems.

Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:23 +11:00
Nathan Lynch
4297c9869b [POWERPC] Maple: use mmio nvram
Some systems supported by the maple platform (e.g. JS2x blades running
SLOF) are able to use the mmio_nvram backend for reading and writing
nvram.  This is an improvement over the current situation -- no nvram
access from userspace at all.

Select MMIO_NVRAM for the maple platform.

Initialize the mmio_nvram backend from maple setup code.

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:23 +11:00
Olof Johansson
721e0c9037 [POWERPC] pasemi: defconfig
Base pasemi defconfig. Nothing special, just the native drivers plus
common PCI-express/PCI cards.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:22 +11:00
Olof Johansson
31c56d820e [POWERPC] pasemi: iommu support
I/O TLB support for PA6T-1682M.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:22 +11:00
Olof Johansson
f9fba5b72d [POWERPC] pasemi: Configure DMA controller interrupts
The DMA controller on PWRficient is somewhat special -- has a PCI header
so it looks like it's on the root PCI (-Express) root bus, but it uses
more than the default number of interrupts (and they are hardwired).

We need to wire up all interrupts for the DMA controller. The generic
IRQ code will only map the primary interrupt from the PCI header (128),
so add 129->211 by hand.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:22 +11:00
Olof Johansson
c388cfebbf [POWERPC] pasemi: SMP timebase sync
Timebase update is simple on PA6T, since global updates can be done from
one core by writing to an SPR.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:22 +11:00
Olof Johansson
f620be99e9 [POWERPC] pasemi: Implement restart
Implement reset on platforms/pasemi. Default is just to reset the
cpu using the SDC registers.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:22 +11:00
Olof Johansson
1199919b69 [POWERPC] pasemi: Idle loops
Powersave support on PA6T. Right now it only uses 'doze' mode, and
will default to no savings (spin).

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:22 +11:00
Olof Johansson
bfed9d32d9 [POWERPC] pasemi: Machine check handler
Print out decoded machine check information on PA6T.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:22 +11:00
Olof Johansson
39c870d5b5 [POWERPC] pasemi: UART udbg support
Early debug output for PA Semi UART. Uses the 2.05 CI real mode ops.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:22 +11:00
Pavel Roskin
a1fdf6940a [POWERPC] Assign all PCI busses on G3 Blue & White
G3 Blue & White is misconfigured by default so that CardBus controllers
in PCI slots don't work.  The PCI bridge is programmed to only allow
access to bus 1 but not higher busses.

The patch forces the PCI busses to be reassigned if a Grackle controller
is found and the machine identifies itself as "PowerMac1,1"

Signed-off-by: Pavel Roskin <proski@gnu.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:22 +11:00
Ishizaki Kou
6e47a0f382 [POWERPC] Celleb: add celleb_defconfig
This patch creates defconfig file for Celleb platform.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:22 +11:00
Ishizaki Kou
c347b7989e [POWERPC] Celleb: basic support
This patch adds base support for Celleb platform.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:21 +11:00
Ishizaki Kou
e107931956 [POWERPC] Celleb: support spu priv1 ops
SPU support routines for Celleb platform.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:21 +11:00
Ishizaki Kou
c9868fe0e0 [POWERPC] Celleb: consolidate spu management ops
Spu management ops in arch/platforms/cell/spu_priv1_mmio.h can be used
commonly in of based platform. This patch separates spu management ops
from native cell code and uses on celleb platform.

Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:21 +11:00
Ishizaki Kou
d7480a9fea [POWERPC] Celleb: support udbg
This patch adds udbg support for Celleb platform.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:21 +11:00
Ishizaki Kou
fe4a0cf1c2 [POWERPC] Celleb: htab routines
Adds htab routines for Celleb platform.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:21 +11:00
Ishizaki Kou
97a9b58409 [POWERPC] Celleb: support iommu
This patch creates Celleb platform dependent file to support iommu.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:21 +11:00
Ishizaki Kou
7163c7c9d2 [POWERPC] Celleb: setup usb host controller in SCC
USB host controller in SCC requires enable sequence. It should be done
before USB host drivers start.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:21 +11:00
Ishizaki Kou
32f39b055f [POWERPC] Celleb: support interrupts
This patch creates Celleb platform dependent files to support interrupts.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:21 +11:00
Ishizaki Kou
b8a590c496 [POWERPC] Celleb: interfaces to the hypervisor
This patch creates Celleb platform dependent files which add
interfaces to call hypervisor.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:21 +11:00
Jiri Kosina
c23ef29c1e [POWERPC] powermac: local_irq_disable() is redundant after local_irq_save()
arch/powerpc/platforms/powermac/smp.c::smp_core99_kick_cpu() contains
local_irq_disable() call after local_irq_save(). This looks
redundant.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:20 +11:00
Jiri Kosina
f79ce995d0 [POWERPC] 86xx: local_irq_disable() is redundant after local_irq_save()
arch/powerpc/platforms/86xx/mpc86xx_smp.c::smp_86xx_kick_cpu() contains
local_irq_disable() call after local_irq_save(). This looks
redundant.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:20 +11:00
Vitaly Bordug
c4cbfd64f9 [POWERPC] mpc8272ads: defconfig
Default config file for mpc8272ads (powerpc port).Though relevant bits went
in, it is required to keep proper default configuration for the target,
which seems to be missed initially.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:20 +11:00
Vitaly Bordug
5427828e83 [POWERPC] Fix kernel build errors for mpc8272ads and mpc8560ads
Recent update of asm-powerpc/io.h caused cpm-related stuff to break in the
current kernel. Current patch fixes it, as well as other inconsistencies
expressed, that do not permit targets from working properly:

- Updated dts with a chosen node with interrupt controller,
- fixed messed device IDs among CPM2 SoC devices,
- corrected odd header name and fixed type in defines,
- Added 82xx subdir to the powerpc/platforms Makefile, missed during
  initial commit,
- new solely-powerpc header file for 8260 family (was using one from
  arch/ppc, this one cleaned up from the extra stuff), in fact for now
  a placeholder to get the board-specific includes for stuff not yet
  capable to live with devicetree peeks only
- Fixed couple of misprints in reference mpc8272 dts.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:20 +11:00
Vitaly Bordug
73844ecbaa [POWERPC] cpm2: CPM2 interrupt controller fix
This contains important fixes for the CPM2 PIC code. Eliminated
CPM_IRQ_OFFSET, pulling the respective interrupt numbers from the interrupt
mapping. Updated devicetree files to reflect that. Changed direct
IC-related IO accesses to the IO accessors. Fixed all the sense values to
keep coherency with ipic. In the current code, CPM2 stuff will have no IRQs
and hence could be hardly usable.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:20 +11:00
Geoff Levand
c19cdcb1b8 [POWERPC] PS3: Enable USB mass storage
Update ps3_defconfig to enable USB mass storage and VFAT.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:20 +11:00
Geoff Levand
35063bb2ea [POWERPC] PS3: Fix DMA scatter-gather
Add the missing pieces to support DMA scatter-gather on the PS3 system bus.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:20 +11:00
Geoff Levand
2a08ea69a3 [POWERPC] PS3: Move system bus to platform directory
Move the PS3 system bus routines from drivers/ps3 to
arch/powerpc/platforms/ps3.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:19 +11:00
Robert P. J. Day
63c2f782e8 [POWERPC] Add "is_power_of_2" checking to log2.h.
Add the inline function "is_power_of_2()" to log2.h, where the value
zero is *not* considered to be a power of two.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:19 +11:00
Olof Johansson
7df2457db8 [POWERPC] MPIC: support more than 256 sources
Allow more than the default 256 MPIC sources. Allocates a new flag
(MPIC_LARGE_VECTORS) to be used by platform code when instantiating
the mpic.

I picked 11 bits worth right now since it would cover the number of
sources on any hardware I have seen. It can always be increased later
if needed.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:19 +11:00
Olof Johansson
6529c13dfe [POWERPC] PA6T PMC support
Support for PA6T-style PMC registers.

PMCs are completely implementation-dependent on PPC, and PA6T numbers them
differently from the IBM model.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:19 +11:00
Olof Johansson
1bd2e5ae18 [POWERPC] Add PMC type to cputable
Add cputable entries for which type of PMC implementation the processor
has.

I've only filled in the current 64-bit processors, the unfilled default
value will have same behaviour as before so it can be done over time
as needed.

Also tidy up the dummy_perf implementation a bit, aggregating it into
one function with ifdefs instead of several.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:19 +11:00
Olof Johansson
c69b767a2c [POWERPC] Oprofile cleanup
Clean up the ctr_read/write a bit. It's currently defined in the
include but only used in one C file each. The only exception is the
classic version, so keep that in the include and define in the C file
as appropriate.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:19 +11:00
Timur Tabi
4942bd80e8 [POWERPC] Fix array indexing error in rheap grow()
The grow() function in the rheap library allocates a larger array of blocks,
copies the contents of the old blocks array to the newly allocated array and
fixes the list_head pointers after the copy.  At the end, the new blocks must
be enqueued to the empty_list of the rh_info_t structure.  This patch fixes
a bug where the code was indexing past the end of the array when enqueueing
blocks.  The UCC ethernet driver, which uses the rheap allocator, experiences
kernel panics because of this bug.

Signed-off-by: Ionut Nicu <ionut.nicu@freescale.com>
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:19 +11:00
Geoff Levand
5f3162f066 [POWERPC] ps3: ps3_defconfig updates
Updates for ps3_defconfig.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:19 +11:00
Geert Uytterhoeven
098e274427 [POWERPC] ps3: get av_multi_out params
Allow the PS3 AV settings driver to access the default video mode stored in
the OS area.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:18 +11:00
Geoff Levand
66b44954f8 [POWERPC] ps3: get firmware version
Add a new routine ps3_get_firmware_version() and use it to output the firmware
version to dmesg.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:18 +11:00
Geoff Levand
73d976b339 [POWERPC] ps3: remove cpuinfo
Remove the unneded routine ps3_show_cpuinfo().  The common platform code now
prints the same information.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:18 +11:00
Geoff Levand
577157659f [POWERPC] ps3: fix interrupt bmp
Add a comment and a preprocessor macro to help clearify the alignment
needs of the PS3 interrupt bitmap.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:18 +11:00
Geert Uytterhoeven
b1eeb38e45 [POWERPC] ps3: add interrupt alloc for outlets
PS3 interrupt core update:
  - Add ps3_alloc_irq() and ps3_free_irq(), to allocate a virtual interrupt
    number for an interrupt outlet, which is needed by the PS3 GPU frame
    buffer device and audio drivers

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:18 +11:00
Geoff Levand
861be32ce7 [POWERPC] ps3: bind interrupt to cpu
Change the PS3 irq allocation routines to take an argument indicating which
cpu (processor thread) the interrupt should be serviced on.

The current system configuration favors device interrupts that are serviced
on cpu0, so that is used as the default.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:18 +11:00
Benjamin Herrenschmidt
9cf9e19667 [POWERPC] ps3: cleanup interrupt bmp routines
Change the PS3 interrupt bitmask routines to be lockless.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:18 +11:00
Geoff Levand
407e24a0c7 [POWERPC] ps3: smp interrupt fixes
PS3 fixups for interrups on SMP.

Fixes the alignment of the interrupt status bitmap, changes the hypervisor
interrupt calls to the '_ext' versions that take an explicit processor
thread ID.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:18 +11:00
Geoff Levand
9633ac8d17 [POWERPC] ps3: rename interrupt symbols
Rename some PS3 interrupt symbols to avoid name clashes and aid debugging.
No change to code.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:18 +11:00
Geoff Levand
a8229a9e52 [POWERPC] ps3: fix struct alignment attributes
Remove incorrect alignment attributes in PS3 platform code for
struct spe_shadow, struct os_area_header, and struct os_area_params.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:18 +11:00
Geert Uytterhoeven
6c7be7d385 [POWERPC] ps3: repository storage support
Handle storage-related repository data:
  - Add missing implementations of ps3_repository_read_stor_*() repository
    accessors.
  - Dump storage properties in debug mode
  - Add PS3_DEV_TYPE_STOR_{DISK,ROM,FLASH} device types (which are identical to
    the corresponding SCSI device types) to enum ps3_dev_type

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:17 +11:00
Geoff Levand
eebb81c13a [POWERPC] ps3: repository misc fixes
Various fixes for the PS3 repository code:

  - Sync signatures of function prototypes and implementations (enum vs.
    unsigned int)
  - Correct references to `regions' as `registers':
      o Correct enum ps3_region_type as enum ps3_reg_type,
      o Correct PS3_REGION_TYPE_* as PS3_REG_TYPE_*,
      o Correct ps3_repository_find_region() as ps3_repository_find_reg().
  - Correct function name in pr_debug() call
  - Minor error condition improvements.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:17 +11:00
Linas Vepstas
25c4a46f0e [POWERPC] pSeries: EEH improperly enabled for some Power4 systems
It appears that EEH is improperly enabled for some Power4 systems.
On these systems, the ibm,set-eeh-option returns a value of success
even when EEH is not supported on the given node. Thus, an explicit
check for support is required.

During boot, on power4, without this patch, one sees messages
similar to:

EEH: event on unsupported device, rc=0 dn=/pci@400000000110/IBM,sp@1
EEH: event on unsupported device, rc=0 dn=/pci@400000000110/pci@2
EEH: event on unsupported device, rc=0 dn=/pci@400000000110/pci@2,2
etc.

The patch makes these go away.

Without this patch, EEH recovery does seem to work correctly for
at least some devices (I tested ethernet e1000), but fails to
recover others (the Emulex LightPulse LPFC, most notably).
Off the top of my head, I don't remember why some devices are
affected, but not others.

The PAPR indicates that the correct way to test for EEH is as
done in this patch; its not clear to me if this was in the PAPR
all along, or recently added; if it was there all along, its not
clear to me why this hadn't been fixed long ago. I suspect only
certain firmware levels are affected.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:17 +11:00
Robert P. J. Day
2dc08572cc [POWERPC] Fix apparent typo "CONFIG_SERIAL_CPM_SMC".
Replace an apparent typo of CONFIG_SERIAL_CPM_SMC with
CONFIG_SERIAL_CPM_SMC2.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:17 +11:00
Nathan Lynch
59eaef9dae [POWERPC] Maple: don't override bus-range supplied by firmware
This workaround was copy-pasted from the powermac code.  It's not
necessary for maple.

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:17 +11:00
Vitaly Bordug
29f1530f19 [POWERPC] Add mpc866ads board-specific bits to arch/powerpc
This add support of the Freescale mpc86xads reference board to
arch/powerpc. Supported SMC1 and SMC2 (UART and serial console), FEC
100Mbps Ethernet, SCC1 Ethernet (10Mbps hdx)

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:17 +11:00
Vitaly Bordug
df34403dca [POWERPC] 8xx: Add mpc885ads support and common mpc8xx files
This adds the core 8xx stuff and specifically mpc885ads board-specific
bits to arch/powerpc. Respective Kconfig has been cleaned up from the stuff
not yet ported over to avoid confusion. Updated and cleaned version.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:17 +11:00
Vitaly Bordug
f2a0bd3753 [POWERPC] 8xx: powerpc port of core CPM PIC
This covers common CPM access functions, CPM interrupt controller code,
micropatch and a few compatibility things to kee the same driver base
working with arch/ppc. This version is refined with all the comments
(mostly PIC-related) addressed.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:17 +11:00
Vitaly Bordug
88bdc6f061 [POWERPC] 8xx: platform related changes to the fsl_soc
Added 8xx SoC peripherials: fec for Ethernet and smc for UARTs.
Ordinary routines to extract values from the device tree and insert
respective platform devices

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:17 +11:00
Vitaly Bordug
5902ebce22 [POWERPC] 8xx: generic 8xx code arch/powerpc port
Including support for non-coherent cache, some mm-related things +
relevant field in Kconfig and Makefiles. Also included rheap.o compilation
if 8xx is defined.

Non-coherent mapping were refined and renamed according to Cristoph
Hellwig. Orphaned functions were cleaned up.

[Also removed arch/ppc/kernel/dma-mapping.c, because otherwise
compiling with ARCH=ppc for a non DMA-cache-coherent platform ends up
with two copies of __dma_alloc_coherent etc.
 -- paulus.]

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:01:02 +11:00
Linus Torvalds
0670afdf0e Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: (27 commits)
  [IA64] swiotlb abstraction (e.g. for Xen)
  [IA64] swiotlb cleanup
  [IA64] make swiotlb use bus_to_virt/virt_to_bus
  [IA64] swiotlb bug fixes
  [IA64] Hook up getcpu system call for IA64
  [IA64] clean up sparsemem memory_present call
  [IA64] show_mem() for IA64 sparsemem NUMA
  [IA64] missing exports hwsw_sync_...
  [IA64] virt_to_page() can be called with NULL arg
  [IA64] alignment bug in ldscript
  [IA64] register memory ranges in a consistent manner
  [IA64] Enable SWIOTLB only when needed
  [IA64-SGI] Check for TIO errors on shub2 Altix
  [IA64] remove bogus prototype ia64_esi_init()
  [IA64] Clear IRQ affinity when unregistered
  [IA64] fix ACPI Kconfig issues
  [IA64] Fix NULL-pointer dereference in ia64_machine_kexec()
  [IA64] find thread for user rbs address
  [IA64] use snprintf() on features field of /proc/cpuinfo
  [IA64] enable singlestep on system call
  ...
2007-02-06 17:24:58 -08:00
Vitaly Bordug
dbbb06b7f6 [POWERPC] 8xx: platform specific mmu updates
This is just a straight port of the same done in arch/ppc
by Marcelo Tosatti. One used to be
[PATCH] ppc32 8xx: update_mmu_cache() needs unconditional tlbie,
commit eb07d964b4

In a nutshell, the board is nearly stuck without this, yet without any
visible failure - being just very slow.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 12:00:32 +11:00
Linus Torvalds
02aedd69e2 Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: (37 commits)
  [S390] Avoid excessive inlining.
  [S390] Mark kernel text section read-only.
  [S390] Convert memory detection into C code.
  [S390] Calibrate delay and bogomips.
  [S390] Hypervisor filesystem (s390_hypfs) for z/VM
  [S390] Add crypto support for 3592 tape devices
  [S390] boot from NSS support
  [S390] Support for s390 Pseudo Random Number Generator
  [S390] ETR support.
  [S390] noexec protection
  [S390] move crypto options and some cleanup.
  [S390] cio: Don't spam debug feature.
  [S390] Cleanup of CHSC event handling.
  [S390] cio: declare hardware structures packed.
  [S390] Add set_fs(USER_DS) to start_thread().
  [S390] cio: Catch operand exceptions on stsch.
  [S390] Fix register usage description.
  [S390] kretprobe_trampoline_holder() in wrong section.
  [S390] Fix kprobes breakpoint handling.
  [S390] Update maintainers file.
  ...
2007-02-06 14:45:32 -08:00
Len Brown
57e1c5c87d Pull test into release branch 2007-02-06 15:31:00 -05:00
Ralf Baechle
d390008ebf [MIPS] Yosemite: Fix missing parens in SERIAL_READ_1 macro
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:25 +00:00
Yoichi Yuasa
c55197eb54 [MIPS] Fix warnings in run_uncached on 32bit kernel
arch/mips/lib/uncached.c: In function 'run_uncached':
arch/mips/lib/uncached.c:47: warning: comparison is always true due to limited range of data type
arch/mips/lib/uncached.c:48: warning: comparison is always false due to limited range of data type
arch/mips/lib/uncached.c:57: warning: comparison is always true due to limited range of data type
arch/mips/lib/uncached.c:58: warning: comparison is always false due to limited range of data type

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:24 +00:00
Chris Dearman
37f2674243 [MIPS] Move .set reorder out of conditional code
Signed-off-by: Chris Dearman <chris@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:23 +00:00
Chris Dearman
6d6671066a [MIPS] Check FCSR for pending interrupts before restoring from a context.
Signed-off-by: Chris Dearman <chris@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:23 +00:00
Ralf Baechle
b86b30f81c [MIPS] Jaguar ATX: Fix large number of warnings.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:22 +00:00
Ralf Baechle
3d0f82aea1 [MIPS] Jaguar: Fix MAC address detection after platform_device conversion.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:22 +00:00
Ralf Baechle
5868756dcb [MIPS] SMTC: Make a bunch of functions and variables static.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:22 +00:00
Joseph S. Myers
99d233fa9b [MIPS] Use compat_sys_pselect6
The N32 and O32 pselect6 syscalls need to use compat_sys_pselect6 to
translate arguments from 32-bit to 64-bit layout.

Signed-off-by: Joseph Myers <joseph@codesourcery.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:22 +00:00
Ralf Baechle
447deafba4 [MIPS] SMTC: Cleanup idle hook invocation.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:21 +00:00
David Quigley
7418cb89af [MIPS] SELinux: Add security hooks to mips-mt {get,set}affinity
This patch adds LSM hooks into the setaffinity and getaffinity functions
for the mips architecture to enable security modules to control these
operations between tasks with different security attributes. This
implementation uses the existing task_setscheduler and task_getscheduler
LSM hooks.
    
Signed-Off-By: David Quigley <dpquigl@tycho.nsa.gov>
Acked-by:  Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:21 +00:00
Ralf Baechle
c917061751 [MIPS] IRIX: Linux coding style cleanups.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:20 +00:00
Ralf Baechle
3f21cdee41 [MIPS] PB1100: Fix pile of warnings
CC      arch/mips/au1000/pb1100/board_setup.o
arch/mips/au1000/pb1100/board_setup.c: In function ‘board_setup’:
arch/mips/au1000/pb1100/board_setup.c:104: warning: passing argument 1 of ‘readb’ makes pointer from integer without a cast
arch/mips/au1000/pb1100/board_setup.c:105: warning: passing argument 1 of ‘readb’ makes pointer from integer without a cast
arch/mips/au1000/pb1100/board_setup.c:105: warning: passing argument 2 of ‘writeb’ makes pointer from integer without a cast
arch/mips/au1000/pb1100/board_setup.c:109: warning: passing argument 1 of ‘readb’ makes pointer from integer without a cast
arch/mips/au1000/pb1100/board_setup.c:110: warning: passing argument 1 of ‘readb’ makes pointer from integer without a cast
arch/mips/au1000/pb1100/board_setup.c:110: warning: passing argument 2 of ‘writeb’ makes pointer from integer without a cast
arch/mips/au1000/pb1100/board_setup.c:51: warning: unused variable ‘sys_clksrc’
arch/mips/au1000/pb1100/board_setup.c:51: warning: unused variable ‘sys_freqctrl’
arch/mips/au1000/pb1100/board_setup.c:50: warning: unused variable ‘pin_func’
    
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:20 +00:00
Ralf Baechle
786d7cdd06 [MIPS] Alchemy: Fix bunch of warnings
CC      arch/mips/au1000/common/pci.o
arch/mips/au1000/common/pci.c:42: warning: large integer implicitly truncated to unsigned type
arch/mips/au1000/common/pci.c:43: warning: large integer implicitly truncated to unsigned type
arch/mips/au1000/common/pci.c:49: warning: large integer implicitly truncated to unsigned type
arch/mips/au1000/common/pci.c:50: warning: large integer implicitly truncated to unsigned type
arch/mips/au1000/common/pci.c: In function ‘au1x_pci_setup’:
arch/mips/au1000/common/pci.c:82: warning: ISO C90 forbids mixed declarations and code

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:20 +00:00
Ralf Baechle
e0daad449c [MIPS] Whitespace cleanups.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:19 +00:00
Ralf Baechle
722b05a0c1 [MIPS] Alchemy: Fix bunch more warnings.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:19 +00:00
Ahmed S. Darwish
25b8ac3ba4 [MIPS] Use ARRAY_SIZE macro when appropriate
Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:19 +00:00
Jan Altenberg
3e7f9b8254 [MIPS] Fix some whitespace damage
Signed-off-by: Jan Altenberg <jan@linutronix.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:18 +00:00
Mathieu Desnoyers
811d944901 [MIPS] Add missing ifdef arch/mips/pmc-sierra/yosemite/setup.c
early_serial_setup is only defined when CONFIG_SERIAL_8250 is set.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:18 +00:00
Atsushi Nemoto
19487f1e8a [MIPS] Fix pb1200/irqmap.c and apply some missed patches
pb1200/irqmap.c had been broken a while due to non-named initializer
and had missed some recent IRQ related changes.  Apply these commits
to this file.
    
[MIPS] IRQ cleanups
commit 1603b5aca4
[MIPS] use generic_handle_irq, handle_level_irq, handle_percpu_irq
commit 1417836e81
[MIPS] Compile __do_IRQ() when really needed
commit e77c232cfc

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:18 +00:00
Ralf Baechle
06396094b2 [MIPS] Do not allow oprofile to be enabled on SMTC.
Oprofile cannot work on SMTC due to the limited number of counters.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:17 +00:00
Robert P. J. Day
4a969e1e22 [MIPS] Remove superfluous "ifdef CONFIG_KGDB".
Given that the Makefiles involved already have conditional compilation of
 the form:

  obj-$(CONFIG_KGDB)      += dbg_io.o

there seems to be little value for the dbg_io.c source files to check
that config variable yet again.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:17 +00:00
Ralf Baechle
be6e143741 [MIPS] vpe_elfload and vpe_run are only used locally, make them static.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:17 +00:00
Ralf Baechle
418451c178 [MIPS] SMTC: remove unused atomic_postclear
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:16 +00:00
Atsushi Nemoto
69a6c312e5 [MIPS] Move some kernel globals from asm file to C file.
This get rid of some undesirable hole in BSS section due to random
order of placement.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:16 +00:00
Ralf Baechle
130e2fb783 [MIPS] Kconfig: Provide sane NR_CPUS defaults for more configurations
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:15 +00:00
Yoichi Yuasa
24d55728dc [MIPS] vr41xx: Use symbolic names for IRQ numers
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:15 +00:00
Atsushi Nemoto
70d21cdeef [MIPS] use name instead of typename for each irq_chip
The "typename" field was obsoleted by the "name" field.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:14 +00:00
Atsushi Nemoto
ea6e942bea [MIPS] Kconfig: Move some entries to appropriate menu
Currently KEXEC is in "Machine selection", SECCOMP, PM, APM are in
"Executable file formats" menu.  Move KEXEC and SECCOMP to "Kernel
type" and PM, APM to new "Power management options" menu.  Also
replace "config PM" with kernel/power/Kconfig.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:14 +00:00
Yoichi Yuasa
9a0ad9e9d8 [MIPS] vr41xx: add MACINT controls
This patch has added MACINT controls.
They are necessary for VR4133 ethernet driver.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:13 +00:00
Franck Bui-Huu
6f284a2ce7 [MIPS] FLATMEM: introduce PHYS_OFFSET.
The old code was assuming that min_low_pfn was always 0. This
means that platforms having a big hole at their memory start
paid the price of wasting some memory for the allocation of
unused entries in mem_map[].

This patch prevents this waste.

It introduces PHYS_OFFSET define which is the start of the
physical memory and uses it wherever needed. Specially when
converting physical/virtual addresses into virtual/physical
ones.

Currently all platforms defines PHYS_OFFSET to 0.

Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:13 +00:00
Franck Bui-Huu
db84dc6155 [MIPS] Setup min_low_pfn/max_low_pfn correctly
This patch makes a better usage of these two globals.
'min_low_pfn' is now correctly setup for all configs, which
allow us to rely on it in boot memory code init.

Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:13 +00:00
Atsushi Nemoto
a583158c9c [MIPS] Unify memset.S
The 32-bit version and 64-bit version are almost equal.  Unify them.
This makes further improvements (for example, supporting CDEX, etc.)
easier.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:12 +00:00
Atsushi Nemoto
c44e8d5e47 [MIPS] prom_free_prom_memory cleanup
Current prom_free_prom_memory() implementations are almost same as
free_init_pages(), or no-op.  Make free_init_pages() extern (again)
and make prom_free_prom_memory() use it.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:09 +00:00
Atsushi Nemoto
2fa7937bd8 [MIPS] Make I8259A_IRQ_BASE customizable
Move I8259A_IRQ_BASE from asm/i8259.h to asm/mach-generic/irq.h and
make it really customizable.  And remove I8259_IRQ_BASE declared on
some platforms.  Currently only NEC_CMBVR4133 is using custom
I8259A_IRQ_BASE value.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:09 +00:00
Atsushi Nemoto
97dcb82de6 [MIPS] Define MIPS_CPU_IRQ_BASE in generic header
The irq_base for {mips,rm7k,rm9k}_cpu_irq_init() are constant on all
platforms and are same value on most platforms (0 or 16, depends on
CONFIG_I8259).  Define them in asm-mips/mach-generic/irq.h and make
them customizable.  This will save a few cycle on each CPU interrupt.

A good side effect is removing some dependencies to MALTA in generic
SMTC code.

Although MIPS_CPU_IRQ_BASE is customizable, this patch changes irq
mappings on DDB5477, EMMA2RH and MIPS_SIM, since really customizing
them might cause some header dependency problem and there seems no
good reason to customize it.  So currently only VR41XX is using custom
MIPS_CPU_IRQ_BASE value, which is 0 regardless of CONFIG_I8259.

Testing this patch on those platforms is greatly appreciated.  Thank
you.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:08 +00:00
Atsushi Nemoto
b6ec8f069b [MIPS] Remove unused rm9k_cpu_irq_disable()
rm9k_cpu_irq_disable() is unused since commit
1603b5aca4.  Remove it.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06 16:53:06 +00:00
Jan Beulich
563aaf064f [IA64] swiotlb cleanup
- add proper __init decoration to swiotlb's init code (and the code calling
  it, where not already the case)

- replace uses of 'unsigned long' with dma_addr_t where appropriate

- do miscellaneous simplicfication and cleanup

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 18:51:25 -08:00
Jan Beulich
cde14bbfb3 [IA64] swiotlb bug fixes
This patch fixes
- marking I-cache clean of pages DMAed to now only done for IA64
- broken multiple inclusion in include/asm-x86_64/swiotlb.h
- missing call to mark_clean in swiotlb_sync_sg()
- a (perhaps only theoretical) issue in swiotlb_dma_supported() when
io_tlb_end is exactly at the end of memory

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 18:46:40 -08:00
Fenghua Yu
86afa9eb88 [IA64] Hook up getcpu system call for IA64
getcpu system call returns cpu# and node# on which this system call and
its caller are running. This patch hooks up its implementation on IA64.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 16:56:36 -08:00
Bob Picco
524fd988bb [IA64] clean up sparsemem memory_present call
Eliminate arch specific memory_present call ia64 NUMA by utilizing
sparse_memory_present_with_active_regions.

Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Bob Picco <bob.picco@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 16:54:11 -08:00
George Beshers
f1c0afa2e8 [IA64] show_mem() for IA64 sparsemem NUMA
On the ia64 architecture only this patch upgrades show_mem() for sparse
memory to be the same as it was for discontig memory.  It has been shown to
work on NUMA and flatmem architectures.

Signed-off-by: George Beshers <gbeshers@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 16:51:59 -08:00
Jan Beulich
671496affd [IA64] missing exports hwsw_sync_...
Add missing exports to allow several drivers to be built as module with
CONFIG_IA64_HP_ZX1_SWIOTLB.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 16:50:11 -08:00
Kirill Korotaev
d00195ebc1 [IA64] alignment bug in ldscript
Occasionally the FSYS_RETURN patch list can have an odd length, causing other
data structures to get out of alignment.  In OpenVZ it is odd and we get
misaligned kernel image, which does not boot.

Signed-off-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Signed-off-by: Kirill Korotaev <dev@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 16:45:42 -08:00
Bob Picco
139b830477 [IA64] register memory ranges in a consistent manner
While pursuing and unrelated issue with 64Mb granules I noticed a problem
related to inconsistent use of add_active_range.  There doesn't appear any
reason to me why FLATMEM versus DISCONTIG_MEM should register memory to
add_active_range with different code.  So I've changed the code into a
common implementation.

The other subtle issue fixed by this patch was calling add_active_range in
count_node_pages before granule aligning is performed.  We were lucky with
16MB granules but not so with 64MB granules.  count_node_pages has reserved
regions filtered out and as a consequence linked kernel text and data
aren't covered by calls to count_node_pages.  So linked kernel regions
wasn't reported to add_active_regions.  This resulted in free_initmem
causing numerous bad_page reports.  This won't occur with this patch
because now all known memory regions are reported by
register_active_ranges.

Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Bob Picco <bob.picco@hp.com>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 15:07:47 -08:00
Jan Beulich
d1598e05fa [IA64] Enable SWIOTLB only when needed
Don't force CONFIG_SWIOTLB on when not actually needed (i.e. HP_ZX1 and
SGI_SN2).

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 14:33:08 -08:00
Russ Anderson
980dbfd421 [IA64-SGI] Check for TIO errors on shub2 Altix
The shub2 error interrupt handler must check for TIO errors.

Signed-off-by: Russ Anderson (rja@sgi.com)
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 14:27:54 -08:00
Alex Williamson
451fe00cf7 [IA64] Clear IRQ affinity when unregistered
When we offline a CPU, migrate_irqs() tries to determine whether the
affinity bits of the IRQ descriptor match any of the remaining online
CPUs.  If not, it fixes up the interrupt to point somewhere else.
Unfortunately, if an IRQ is unregistered the IRQ descriptor may still
have affinity to the CPU being offlined, but the no_irq_chip handler
doesn't provide a set_affinity function.  This causes us to hit the
WARN_ON in migrate_irqs().

The easiest solution seems to be setting all the bits in the affinity
mask when the last interrupt is removed from the vector.  I hit this on
an older kernel with Xen/ia64 using driver domains (so it probably needs
more testing on upstream).  Xen essentially uses the bind/unbind
interface in sysfs to unregister a device from a driver and thus
unregister the interrupt.

Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 14:09:51 -08:00
Len Brown
06f87adff1 [IA64] fix ACPI Kconfig issues
All IA64 systems except IA64_HP_SIM include ACPI and PCI.
So prevent IA64 Kconfigs that try to do irritating things like building
PCI without building ACPI.

Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 14:07:50 -08:00
Bernhard Walle
c2c77fe8df [IA64] Fix NULL-pointer dereference in ia64_machine_kexec()
This patch fixes a NULL-pointer dereference in ia64_machine_kexec().

The variable ia64_kimage is set in machine_kexec_prepare() which is
called from sys_kexec_load(). If kdump wasn't configured before,
ia64_kimage is NULL.  machine_kdump_on_init() passes ia64_kimage() to
machine_kexec() which assumes a valid value.

The patch also adds a few sanity checks for the image to simplify
debugging of similar problems in future.

Signed-off-by: Bernhard Walle <bwalle@suse.de>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 14:06:44 -08:00
bibo,mao
87f76d3aaf [IA64] find thread for user rbs address
I encountered one problem when running ptrace test case the situation
is this: traced process's syscall parameter needs to be accessed, but
for sys_clone system call with clone_flag (CLONE_VFORK | CLONE_VM |
SIGCHLD) parameter.  This syscall's parameter accessing result is wrong.

The reason is that vforked child process mm point is the same, but
tgid is different. Without this patch find_thread_for_addr will return
vforked process if vforked process is also stopped, but not the thread
which calls vfork syscall.

Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 14:04:21 -08:00
Aron Griffis
ae0af3e346 [IA64] use snprintf() on features field of /proc/cpuinfo
Some patches have turned up on xen-devel recently to convert strcpy()
to safer alternatives and so forth.  While reviewing those patches
I noticed that the features string building could be cleaned up.

This patch uses snprintf() instead of strcpy() and direct character
pointer manipulation.  It makes the features string building safe and
gets rid of the special case for features output in show_cpuinfo()

Additionally I removed the (int) cast of ARRAY_SIZE, which seems to
serve no purpose.

Signed-off-by: Aron Griffis <aron@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 13:54:31 -08:00
bibo,mao
90f9d70a58 [IA64] enable singlestep on system call
As is pointed out in
http://www.gelato.org/community/view_linear.php?id=1_1036&from=authors&value=Ian%20Wienand#1_1039,
if single step on break instruction, the break fault has higher
priority than the single-step trap. When the break fault handler
is entered, it advances the IP by 1 instruction so break instruction
single-stepping is skipped, actually it is next instruction which
is single stepped.

This patch modifies this, it adds TIF_SINGLESTEP bit for thread
flags, and generate a fake sigtrap when single stepping break
instruction. Test case in attachment can verify this. Any comments
is welcome.

Signed-off-by: bibo, mao <bibo.mao@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 13:49:29 -08:00
Horms
c237508afa [IA64] kexec: Move machine_shutdown from machine_kexec.c to process.c
This moves the ia64 implementation of machine_shutdown() from
machine_kexec.c to process.c, which is in keeping with the implelmentation
on other architectures, and seems like a much more appropriate home for it.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 13:49:10 -08:00
Heiko Carstens
4d284cac76 [S390] Avoid excessive inlining.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:18:53 +01:00
Heiko Carstens
162e006ef5 [S390] Mark kernel text section read-only.
Set read-only flag in the page table entries for the kernel image text
section. This will catch all instruction caused corruptions withing the
text section.
Instruction replacement via kprobes still works, since it bypasses now
dynamic address translation.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:18:41 +01:00
Heiko Carstens
ab14de6c37 [S390] Convert memory detection into C code.
Hopefully this will make it more maintainable and less error prone.
Code makes use of search_exception_tables(). Since it calls this
function before the kernel exeception table is sorted, there is an
early call to sort_main_extable().

This way it's easy to use the already present infrastructure of fixup
sections. Also this would allows to easily convert the rest of
head[31|64].S into C code.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:18:37 +01:00
Martin Schwidefsky
31ee4b2f40 [S390] Calibrate delay and bogomips.
Preset the bogomips number to the cpu capacity value reported by
store system information in SYSIB 1.2.2. This value is constant
for a particular machine model and can be used to determine
relative performance differences between machines.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:18:31 +01:00
Michael Holzheu
31cb4bd31a [S390] Hypervisor filesystem (s390_hypfs) for z/VM
This is an extension of the already existing hypfs for LPAR (DIAG 204).
Data returned by DIAG 2fc is exported using the s390_hypfs when Linux
is running under z/VM. Information about cpus and memory is provided.
Data is put into different virtual files which can be accessed from user
space. All values are represented as ASCII strings

Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:18:29 +01:00
Hongjie Yang
fe355b7f1c [S390] boot from NSS support
Add support to boot from a named saved segment (NSS).

Signed-off-by: Hongjie Yang <hongjie@us.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:18:24 +01:00
Jan Glauber
1b27829489 [S390] Support for s390 Pseudo Random Number Generator
Starting with the z9 the CPU Cryptographic Assist Facility comes with
an integrated Pseudo Random Number Generator. The generator creates
random numbers by an algorithm similar to the ANSI X9.17 standard.
The pseudo-random numbers can be accessed via a character device driver
node called /dev/prandom. Similar to /dev/urandom any amount of bytes
can be read from the device without blocking.

Signed-off-by: Jan Glauber <jan.glauber@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:18:22 +01:00
Martin Schwidefsky
d54853ef8c [S390] ETR support.
This patch adds support for clock synchronization to an external time
reference (ETR). The external time reference sends an oscillator
signal and a synchronization signal every 2^20 microseconds to keep
the TOD clocks of all connected servers in sync. For availability
two ETR units can be connected to a machine. If the clock deviates
for more than the sync-check tolerance all cpus get a machine check
that indicates that the clock is out of sync. For the lovely details
how to get the clock back in sync see the code below.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:18:19 +01:00
Gerald Schaefer
c1821c2e97 [S390] noexec protection
This provides a noexec protection on s390 hardware. Our hardware does
not have any bits left in the pte for a hw noexec bit, so this is a
different approach using shadow page tables and a special addressing
mode that allows separate address spaces for code and data.

As a special feature of our "secondary-space" addressing mode, separate
page tables can be specified for the translation of data addresses
(storage operands) and instruction addresses. The shadow page table is
used for the instruction addresses and the standard page table for the
data addresses.
The shadow page table is linked to the standard page table by a pointer
in page->lru.next of the struct page corresponding to the page that
contains the standard page table (since page->private is not really
private with the pte_lock and the page table pages are not in the LRU
list).
Depending on the software bits of a pte, it is either inserted into
both page tables or just into the standard (data) page table. Pages of
a vma that does not have the VM_EXEC bit set get mapped only in the
data address space. Any try to execute code on such a page will cause a
page translation exception. The standard reaction to this is a SIGSEGV
with two exceptions: the two system call opcodes 0x0a77 (sys_sigreturn)
and 0x0aad (sys_rt_sigreturn) are allowed. They are stored by the
kernel to the signal stack frame. Unfortunately, the signal return
mechanism cannot be modified to use an SA_RESTORER because the
exception unwinding code depends on the system call opcode stored
behind the signal stack frame.

This feature requires that user space is executed in secondary-space
mode and the kernel in home-space mode, which means that the addressing
modes need to be switched and that the noexec protection only works
for user space.
After switching the addressing modes, we cannot use the mvcp/mvcs
instructions anymore to copy between kernel and user space. A new
mvcos instruction has been added to the z9 EC/BC hardware which allows
to copy between arbitrary address spaces, but on older hardware the
page tables need to be walked manually.

Signed-off-by: Gerald Schaefer <geraldsc@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:18:17 +01:00
Jan Glauber
86aa9fc245 [S390] move crypto options and some cleanup.
This patch moves the config options for the s390 crypto instructions
to the standard "Hardware crypto devices" menu. In addition some
cleanup has been done: use a flag for supported keylengths, add a
warning about machien limitation, return ENOTSUPP in case the
hardware has no support, remove superfluous printks and update
email addresses.

Signed-off-by: Jan Glauber <jan.glauber@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:18:14 +01:00
Heiko Carstens
d42335a33b [S390] kretprobe_trampoline_holder() in wrong section.
kretprobe_trampoline_holder() is in kprobes section but used to
register a kprobe in arch_init_kprobes(). Hence register_kprobe()
and therefore arch_init_kprobes() will fail.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:17:32 +01:00
Heiko Carstens
35df8d53f5 [S390] Fix kprobes breakpoint handling.
In case of an illegal op the die notifier gets called with DIE_TRAP
instead of DIE_BPT first.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:17:29 +01:00
Gerald Schaefer
444f0e5489 [S390] Show loaded DCSS segments under /proc/iomem.
Currently loaded DCSS segments are now listed in /proc/iomem with
their name followed by a trailing "(DCSS)".

Signed-off-by: Gerald Schaefer <geraldsc@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:17:11 +01:00
Heiko Carstens
b075083f35 [S390] Fix FCP dump feature detection.
FCP dump feature detection works only if the sclp command in head.S
was succesful. Since the sclp command is skipped if diag260 works,
we don't have any dump feature detection anymore.
Bug was introduced with d57de5a367.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:17:07 +01:00
Christian Borntraeger
bda3563fb2 [S390] cpcmd with vmalloc addresses.
Change the bounce buffer logic of cpcmd. diag8 needs _real_ memory below
2GB. Therefore vmalloced data does not work. As the data might cross a
page boundary, we cannot use virt_to_page either. The solution is to use
virt_to_page only in the check for a bounce buffer.

There was a redundant check for response==NULL. response < 2GB contains
this check as well.

I also removed the rlen==0 check, since rlen=0 and response!=NULL would
be a caller bug and response==NULL is already checked.

Signed-off-by: Christian Borntraeger <cborntra@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:16:54 +01:00
Heiko Carstens
60383201c2 [S390] Remove pointless/unreliable kernel messages.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:16:52 +01:00
Heiko Carstens
2b67fc4606 [S390] Get rid of a lot of sparse warnings.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:16:47 +01:00
Heiko Carstens
55dff5224a [S390] Move init_irq_proc to the other irq related functions.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:16:44 +01:00
Horms
9473252f20 [IA64] add newline to PAL-code warning message
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 11:32:59 -08:00
Horms
abac08dbb4 [IA64] kexec: Remove inline declaration of efi_get_pal_addr()
Remove the Remove inline declaration of efi_get_pal_addr() as it is
declared in linux/efi.h.

Signed-Off-By: Simon Horman <horms@verge.net.au>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 11:31:43 -08:00
Horms
8a697d0a4c [IA64] kexec: Minor enhancement to includes in crash.c
linux/uaccess.h was being included, but it seems that
really the following includes are needed.

asm/page.h: for __va() and PAGE_SHIFT
asm/uaccess.h: for copy_to_user()

I guess that linux/uaccess.h pulls in both asm/page.h and asm/uaccess.h.
I notices this while backporting the code to xen's linux-2.6.16.33,
which does not have linux/uaccess.h. I'm posting it as I think it is a
correct, though somewhat cosmetic fix.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 11:31:04 -08:00
Horms
233c2f99d6 [IA64] kexec: typo in the saved_max_pfn description in contig.c
Fix a typo in the saved_max_pfn description in contig.c

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 11:30:25 -08:00
Horms
475c63bded [IA64] Zero size /proc/vmcore on ia64
Set saved_max_pfn when discontig memory is in use.

This sets up saved_max_pfn when disctontig memory is in use.
This mirrors the code for contig memory.

This patch does not entirely solve the problem of making vmcore work,
however it does appear to be neccessary. Please consider applying.

Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 11:29:33 -08:00
Magnus Damm
bcb9b99d1f [IA64] kexec: Fix CONFIG_SMP=n compilation
Kexec support for 2.6.20 on ia64 does not build properly using a config
made up by CONFIG_SMP=n and CONFIG_HOTPLUG_CPU=n:

Signed-off-by: Magnus Damm <magnus@valinux.co.jp>
Acked-by: Simon Horman <horms@verge.net.au>
Acked-by: Jay Lan <jlan@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 11:27:21 -08:00
Frédéric Riss
40c373cc3a [PATCH] EFI x86: pass firmware call parameters on the stack
When calling into the EFI firmware, the parameters need to be passed on
the stack. The recent change to use -mregparm=3 breaks x86 EFI support.
This patch is needed to allow the new Intel-based Macs to suspend to ram
(efi.get_time is called during the suspend phase).

Signed-off-by: Frederic Riss <frederic.riss@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-04 10:27:10 -08:00
John Keller
72253943f7 [PATCH] Altix: more ACPI PRT support
The SN Altix platform does not conform to the IOSAPIC IRQ routing model.
Add code in acpi_unregister_gsi() to check if (acpi_irq_model ==
ACPI_IRQ_MODEL_PLATFORM) and return.

Due to an oversight, this code was not added previously when
similar code was added to acpi_register_gsi().

http://marc.theaimsgroup.com/?l=linux-acpi&m=116680983430121&w=2

Signed-off-by: John Keller <jpk@sgi.com>
Acked-by: Len Brown <lenb@kernel.org>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-03 11:26:06 -08:00
Magnus Damm
29a002776b [PATCH] kexec: Avoid migration of already disabled irqs (ia64)
This patch fixes up ia64 kexec support for HP rx2620 hardware.  It does
this by skipping migration of already disabled irqs.  This is most likely a
problem on other ia64 platforms as well, but I've only been able to
reproduce it on one machine so far.

The full story is that handle_bad_irq() gets invoked before starting the
new kernel without this patch.  This seems to happen when fixup_irqs()
calls generic_handle_irq() on already migrated (and disabled) irqs.  So by
avoiding migration of disabled irqs we stay away of handle_bad_irq().

The code has been tested on three different ia64 machines, all with good
results.  It is possible to trigger the same bug by offlining a processor
using echo 0 > /sys/devices/system/cpu/cpuX/online.

More detailed information is available in the following mail thread:
http://lists.osdl.org/pipermail/fastboot/2007-January/thread.html#5774

Signed-off-by: Magnus Damm <magnus@valinux.co.jp>
Acked-by: Simon Horman <horms@verge.net.au>
Acked-by: Zou, Nanhai <nanhai.zou@intel.com>
Acked-by: Jay Lan <jlan@sgi.com>
Acked-by: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-03 11:26:06 -08:00
Len Brown
eee3c859c4 Pull motherboard into test branch
Conflicts:

	drivers/acpi/motherboard.c

Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-03 01:38:16 -05:00
John Keller
6f09a9250a Altix: ACPI SSDT PCI device support
Add SN platform support for running with an ACPI
capable PROM that defines PCI devices in SSDT
tables. There is a SSDT table for every occupied
slot on a root bus, containing info for every
PPB and/or device on the bus. The SSDTs will be
dynamically loaded/unloaded at hotplug enable/disable.

Platform specific information that is currently
passed via a SAL call, will now be passed via the
Vendor resource in the ACPI Device object(s) defined
in each SSDT.

Signed-off-by: John Keller <jpk@sgi.com>
Cc: Greg KH <greg@kroah.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-02 22:14:35 -05:00
Len Brown
647fb47dfa ACPICA: reduce conflicts with Altix patch series
Syntax only -- no functional changes.

Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-02 22:14:22 -05:00
Alexey Starikovskiy
defad23020 ACPI_NUMA: fix HP IA64 simulator issue with extended memory domain
ACPI 3.0 incorporated the SRAT spec, upping the table version to 2,
and extending the size of the proximity domain from 1-byte to 4-bytes.
This extension was into a reserved field that firmware should
set to 0, but the HP simulator had non-zero values there
resulting in unexpected huge numbers.

So mask the domain down to 8-bits for now.
A more general fix will be to check the table version
supplied by firmware and get paranoid about reserved fields.

Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-02 22:02:55 -05:00
Alexey Starikovskiy
0e5683350f ACPI: build fix for IBM x440 - CONFIG_X86_SUMMIT
i386 srat.c broke due to re-names from ACPICA table-manager re-write.

Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-02 21:47:33 -05:00
Alexey Starikovskiy
f18c5a08bf ACPICA: Allow ACPI id to be u32 instead of u8.
Allow ACPI id to be u32 instead of u8.
Requires drop of conversion tables with the acpiid as index.

Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-02 21:14:31 -05:00
Alexey Starikovskiy
15a58ed121 ACPICA: Remove duplicate table definitions (non-conflicting), cont
Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-02 21:14:29 -05:00
Alexey Starikovskiy
5f3b1a8b67 ACPICA: Remove duplicate table definitions (non-conflicting)
Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-02 21:14:29 -05:00
Alexey Starikovskiy
ad363f80c3 ACPICA: Remove duplicate table definitions.
Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-02 21:14:28 -05:00
Alexey Starikovskiy
cee324b145 ACPICA: use new ACPI headers.
Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-02 21:14:28 -05:00
Alexey Starikovskiy
ceb6c46839 ACPICA: Remove duplicate table manager
Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-02 21:14:28 -05:00
Alexey Starikovskiy
ad71860a17 ACPICA: minimal patch to integrate new tables into Linux
Signed-off-by: Len Brown <len.brown@intel.com>
2007-02-02 21:14:22 -05:00
Linus Torvalds
435f8a605d Revert "[PATCH] fix typo in geode_configre()@cyrix.c"
This reverts commit e4f0ae0ea6.

It's not wrong, but it's not right either, and everybody seems to agree
that the right fix is probably to do the ccr3 write after the ccr4 one
(and that we also should clean it up a bit).  And after that we need to
really validate that all the bits that we write to ccr4 actually do
work.

The old 2.6.19 code was insane, and basically didn't change ccr4 at all
(even though it certainly looks like it was the *intent* to do so).  So
let's revert the change that may fix things, just because it's not what
was actually ever tested when the code was written, even if it _was_ the
intent.

There's a discussion on http://lkml.org/lkml/2007/1/9/63 that was
started by the patch that now gets reverted, and that discussion may
well contain the proper long-term fix.

Suggested-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-02 08:07:42 -08:00
Al Viro
b4cff8464b [PATCH] sanitize sections for sparc32 smp
a) sun4d_boot_one_cpu() should be __cpuinit (called only from
   __cpuinit __cpu_up(), for one thing, leads to calls of __cpuinit
   functions for another).
b) got externs in arch/sparc/kernel/smp.c to match reality.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-01 16:17:06 -08:00
Al Viro
2a3d4f1f1f [PATCH] __crc_... is intended to be absolute
i386 boot/compressed/relocs checks for absolute symbols and warns about
unexpected ones.  If you build with modversions, you get ~2500 warnings
about __crc_<symbol>.  These suckers are really absolute symbols - we
do _not_ want to modify them on relocation.

They are generated by genksyms - EXPORT_... generates a weak alias, then
genksyms produces an ld script with __crc_<symbol> = <checksum> and it's
fed to ld to produce the final object file.  Their only use is to match
kernel and module at modprobe time; they _must_ be absolute.

boot/compressed/relocs has a whitelist of known absolute symbols, but
it doesn't know about __crc_... stuff.  As the result, we get shitloads
of false positives on any ld(1) version.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-01 16:17:06 -08:00
Al Viro
aaba6d4bf6 [PATCH] mca_nmi_hook() can be called at any point
... and having it __init is a bad idea.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-01 16:17:05 -08:00
Jeff Dike
3896625d0b [PATCH] uml: fix signal frame alignment
Use the same signal frame alignment calculations as the underlying
architecture.  x86_64 appeared to do this, but the "- 8" was really
subtracting 8 * sizeof(struct rt_sigframe) rather than 8 bytes.

UML/i386 might have been OK, but I changed the calculation to match
i386 just to be sure.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: <stable@kernel.org>
Cc: Adrian Bunk <bunk@stusta.de>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Acked-by: Antoine Martin <antoine@nagafix.co.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-30 16:01:35 -08:00
Kim Phillips
18a1e4c3ee [POWERPC] 83xx: Add the mpc8323emds.dts
Add the mpc8323emds device tree source (dts)

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-01-30 16:23:58 -06:00
Kim Phillips
a33a9641c9 [POWERPC] 83xx: Add the mpc832xemds defconfig
The defconfig for the 8323EMDS is identical to the 8360E MDS defconfig,
except CONFIG_MATH_EMULATION is set, since the 8323 doesn't have a FPU.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-01-30 16:23:39 -06:00
Linus Torvalds
ad2e62a038 Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq
* master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ] Remove unneeded errata workaround from p4-clockmod.
  [CPUFREQ] check sysfs_create_link return value
2007-01-30 08:44:08 -08:00
Al Viro
b20c8453a7 [PATCH] fix indentation-related breakage in Kconfig.i386
Kconfig recognizes the end of help text by receding indentation depth.
Recent patch had broken HOST_VMSPLIT_... choice in arch/um/Kconfig.i386 -
all alternatives are interpreted as part of help text now.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-30 08:39:21 -08:00
Al Viro
89eb1693f9 [PATCH] missing exports of pm_power_off() on alpha and sparc32
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-30 08:39:20 -08:00
Linus Torvalds
a06c39d257 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] Fix typo of "CONFIG_MT_SMP".
  [MIPS] Ocelot G: Fix a few misspellings of CONFIG_GALILEO_GT64240_ETH
  [PATCH] Malta: Fix build if CONFIG_MTD is diabled.
2007-01-30 08:35:12 -08:00
Eric W. Biederman
8339f0008c [PATCH] i386: In assign_irq_vector look at all vectors before giving up
When the world was a simple and static place setting up irqs was easy.
It sufficed to allocate a linux irq number and a find a free cpu
vector we could receive that linux irq on.  In those days it was
a safe assumption that any allocated vector was actually in use
so after one global pass through all of the vectors we would have
none left.

These days things are much more dynamic with interrupt controllers
(in the form of MSI or MSI-X) appearing on plug in cards and linux
irqs appearing and disappearing.  As these irqs come and go vectors
are allocated and freed,  invalidating the ancient assumption that all
allocated vectors stayed in use forever.

So this patch modifies the vector allocator to walk through every
possible vector before giving up, and to check to see if a vector
is in use before assigning it.  With these changes we stop leaking
freed vectors and it becomes possible to allocate and free irq vectors
all day long.

This changed was modeled after the vector allocator on x86_64 where
this limitation has already been removed.  In essence we don't update
the static variables that hold the position of the last vector we
allocated until have successfully allocated another vector.  This
allows us to detect if we have completed one complete scan through
all of the possible vectors.

Acked-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-30 08:29:58 -08:00
Linus Torvalds
c9cc8e771c Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 4117/1: S3C2412: Fix writel() usage in selection code
  [ARM] 4111/1: Allow VFP to work with thread migration on SMP
  [ARM] 4112/1: Only ioremap to supersections if DOMAIN_IO is zero
  [ARM] 4106/1: S3C2410: typo fixes in register definitions
  [ARM] 4102/1: Allow for PHYS_OFFSET on any valid 2MiB address
  [ARM] Fix AMBA serial drivers for non-first serial ports
  [ARM] 4100/1: iop3xx: fix cpu mask for iop333
  [ARM] Update mach-types
  [ARM] Fix show_mem() for discontigmem
  [ARM] 4096/1: S3C24XX: change return code form s3c2410_gpio_getcfg()
  [ARM] 4095/1: S3C24XX: Fix GPIO set for Bank A
  [ARM] 4092/1: i.MX/MX1 CPU Frequency scaling latency definition
  [ARM] 4089/1: AT91: GPIO wake IRQ cleanup
  [ARM] 4088/1: AT91: Unbalanced IRQ in serial driver suspend/resume
  [ARM] 4087/1: AT91: CPU reset for SAM9x processors
  [ARM] 4086/1: AT91: Whitespace cleanup
  [ARM] 4085/1: AT91: Header fixes.
  [ARM] 4084/1: Remove CONFIG_DEBUG_WAITQ
2007-01-30 08:29:05 -08:00
Robert P. J. Day
9616d54fff [MIPS] Fix typo of "CONFIG_MT_SMP".
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-01-30 12:10:48 +00:00
Ralf Baechle
1ca5cb5ddd [MIPS] Ocelot G: Fix a few misspellings of CONFIG_GALILEO_GT64240_ETH
Reported by Robert P. J. Day <rpjday@mindspring.com>.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-01-30 12:10:48 +00:00
Jan Altenberg
bf2326e752 [PATCH] Malta: Fix build if CONFIG_MTD is diabled.
Signed-off-by: Jan Altenberg <jan@linutronix.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-01-30 12:10:48 +00:00
Kumar Gala
304df8f7ef [POWERPC] Enable stack debug features on ppc32
Enable stack overflow checking (DEBUG_STACKOVERFLOW) and stack usage
(DEBUG_STACK_USAGE) on ppc32.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-01-30 00:45:56 -06:00
Kumar Gala
48809a9308 Merge branch '83xx' into for_paulus 2007-01-30 00:38:11 -06:00
Li Yang
3b6eb6af5f [POWERPC] 83xx: Fix compiler warnings on 836x and 832x
Some prototypes are separated from of_device.h into of_platform.h.  Add
the new include to fix warning.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-01-30 00:36:57 -06:00
Ben Dooks
b9d1902cd2 [ARM] 4117/1: S3C2412: Fix writel() usage in selection code
The S3C2412 DMA selection code has the
arguments to writel() the wrong way around.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-01-29 10:09:17 +00:00
Dave Jones
3453c8478a [CPUFREQ] Remove unneeded errata workaround from p4-clockmod.
This workaround unnecessarily cripples functionality to work
around an errata that doesn't seem possible to hit due to
us using the automatic clock throttling in the p4 mcheck code.

See http://lkml.org/lkml/2006/10/28/148 for complete reasoning
and lack of disconsent.

Signed-off-by: Dave Jones <davej@redhat.com>
2007-01-29 00:07:04 -05:00
Linus Torvalds
5263bf65d6 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] Fix sys_pciconfig_iobase bus matching
  [POWERPC] PS3: add not complete comment to kconfig
  [POWERPC] ps3_free_io_irq: Fix inverted error check
  [POWERPC] PS3: Fix uniprocessor kernel build
2007-01-28 12:45:22 -08:00
Benjamin Herrenschmidt
545da94f92 [POWERPC] Fix sys_pciconfig_iobase bus matching
A stupid bug has been plaguing the sys_pciconfig_iobase on ppc64. It wasn't
noticed until recently as it seems to not affect G5s but it's been causing
problems running X servers on some other machines recently. The bus number
matching was bogus.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-28 09:57:09 +11:00
Geoff Levand
05916eec9f [POWERPC] PS3: add not complete comment to kconfig
Add a comment to the PS3 config option to inform users that the current
implementation is not yet complete.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-28 09:57:07 +11:00
David S. Miller
86d43258bc [SPARC64]: Set g4/g5 properly in sun4v dtlb-prot handling.
Mirror the logic in the sun4u handler, we have to update
both registers even when we branch out to window fault
fixup handling.

The way it works is that if we are in etrap processing a
fault already, g4/g5 holds the original fault information.
If we take a window spill fault while doing etrap, then
we put the window spill fault info into g4/g5 and this is
what the top-level fault handler ends up processing first.

Then we retry the originally faulting instruction, and
process the original fault at that time.

This is all necessary because of how constrained the trap
registers are in these code paths.  These cases trigger
very rarely, so even if there is some performance implication
it's doesn't happen very often.  In fact the rarity is why
it took so long to trigger and find this particular bug.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-26 18:56:01 -08:00
Linus Torvalds
bb38594296 Merge branch 'for-linus' of git://www.atmel.no/~hskinnemoen/linux/kernel/avr32
* 'for-linus' of git://www.atmel.no/~hskinnemoen/linux/kernel/avr32:
  [AVR32] Update ATSTK1000 defconfig: Enable macb by default
  [AVR32] Export clear_page symbol
2007-01-26 14:48:53 -08:00
Linus Torvalds
08eacc3157 Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  Fix Maple PATA IRQ assignment.
  ahci: use 0x80 as wait stat value instead of 0xff
  sata_via: style clean up, no indirect method call in LLD
  ahci: fix endianness in spurious interrupt message
  libata-sff: Don't call bmdma_stop on non DMA capable controllers
  libata: implement ATA_FLAG_IGN_SIMPLEX and use it in sata_uli
  ahci: improve and limit spurious interrupt messages, take#3
  sata_via: don't diddle with ATA_NIEN in ->freeze
  libata: set_mode, Fix the FIXME
  libata hpt3xn: Hopefully sort out the DPLL logic versus the vendor code
  libata cmd64x: whack into a shape that looks like the documentation
2007-01-26 14:45:18 -08:00
David Woodhouse
8cdf92a98f Fix Maple PATA IRQ assignment.
On the Maple board, the AMD8111 IDE is in legacy mode... except that it
appears on IRQ 20 instead of IRQ 15. For drivers/ide this was handled by
the architecture's "pci_get_legacy_ide_irq()" function, but in libata we
just hard-code the numbers 14 and 15.

This patch provides asm-powerpc/libata-portmap.h which maps the IRQ as
appropriate, having added a pci_dev argument to the
ATA_{PRIM,SECOND}ARY_IRQ macros.

There's probably a better way to do this -- especially if we observe
that the _only_ case in which this seemingly-generic
"pci_get_legacy_ide_irq()" function returns anything other than 14 and
15 for primary and secondary respectively is the case of the AMD8111 on
the Maple board -- couldn't we handle that with a special case in the
pata_amd driver, or perhaps with a PCI quirk for Maple to switch it into
native mode during early boot and assign resources properly?

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-01-26 17:27:40 -05:00
Jeff Dike
fe33f6f152 [PATCH] Fix UML on non-standard VM split hosts
This fixes UML on hosts with non-standard VM splits.  We had changed the
config variable that controls UML behavior on such hosts, but not
propogated the change everywhere.  In particular, the values of STUB_CODE
and STUB_DATA relied on the old variable.

I also reformatted the HOST_VMSPLIT_3G help to make it more standard.

Spotted by uml@flonatel.org.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Blaisorblade <blaisorblade@yahoo.it>
Cc: Pravin <shindepravin@gmail.com>
Cc: <uml@flonatel.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-26 13:51:00 -08:00
Roland McGrath
c633090e31 [PATCH] x86_64 ia32 vDSO: define arch_vma_name
This patch makes x86_64 define arch_vma_name for CONFIG_IA32_EMULATION.  This
makes the ia32 vDSO mapping appear in /proc/PID/maps with "[vdso]" for ia32
processes, as it does on native i386.

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