Commit graph

20007 commits

Author SHA1 Message Date
Yoshinori Sato
ff10e5dc17 h8300: defconfig update
defconfig update.

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-23 17:12:16 -08:00
Yoshinori Sato
5cc265a5de h8300: IRQ handling update
- add missing file and declare.
- remove unused file and macros.
- some cleanup.

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-23 17:12:16 -08:00
Yoshinori Sato
45d464eb67 h8300: signal.c typo fix
typo fix.

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-23 17:12:15 -08:00
Jeff Dike
2f56debd77 uml: fix FP register corruption
Commit ee3d9bd4de ("uml: simplify SIGSEGV
handling"), while greatly simplifying the kernel SIGSEGV handler that
runs in the process address space, introduced a bug which corrupts FP
state in the process.

Previously, the SIGSEGV handler called the sigreturn system call by hand - it
couldn't return through the restorer provided to it because that could try to
call the libc restorer which likely wouldn't exist in the process address
space.  So, it blocked off some signals, including SIGUSR1, on entry to the
SIGSEGV handler, queued a SIGUSR1 to itself, and invoked sigreturn.  The
SIGUSR1 was delivered, and was visible to the UML kernel after sigreturn
finished.

The commit eliminated the signal masking and the call to sigreturn.  The
handler simply hits itself with a SIGTRAP to let the UML kernel know that it
is finished.  UML then restores the process registers, which effectively
longjmps the process out of the signal handler, skipping sigreturn's restoring
of register state and the signal mask.

The bug is that the host apparently sets used_fp to 0 when it saves the
process FP state in the sigcontext on the process signal stack.  Thus, when
the process is longjmped out of the handler, its FP state is corrupt because
it wasn't saved on the context switch to the UML kernel.

This manifested itself as sleep hanging.  For some reason, sleep uses floating
point in order to calculate the sleep interval.  When a page fault corrupts
its FP state, it is faked into essentially sleeping forever.

This patch saves the FP state before entering the SIGSEGV handler and restores
it afterwards.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-23 17:12:15 -08:00
Johann Felix Soden
e4d06b3f90 uml: fix helper_wait calls in watchdog
In commit 1aa351a308 ("uml: tidy helper
code") the arguments of helper_wait() were changed.  The adaptation of
harddog_user.c was forgotten, so this errors occur:

  /arch/um/drivers/harddog_user.c: In function 'start_watchdog':
  /arch/um/drivers/harddog_user.c:82: error: too many arguments to function 'helper_wait'
  /arch/um/drivers/harddog_user.c:89: error: too many arguments to function 'helper_wait'

Signed-off-by: Johann Felix Soden <johfel@users.sourceforge.net>
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-23 17:12:15 -08:00
Jeff Dike
b32eb52e40 uml: remove unused sigcontext accessors
The macros which extract registers from a struct sigcontext are no longer
needed and can be removed.  They are starting not to build anyway, given the
removal of the 'e' and 'r' from register names during the x86 merge.

Cc: Jiri Olsa <olsajiri@gmail.com>
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-23 17:12:15 -08:00
David Howells
860f7be283 MN10300: define HZ as a config option
Define HZ as a config option.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-23 17:12:13 -08:00
WANG Cong
c3be10f757 arch/um/kernel/mem.c: fix a shadowed variable
Fix a shadowed variable in arch/um/kernel/mem.c, since there is a global
variable has the same name.

Cc: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-23 17:12:13 -08:00
Jeff Dike
7b59ebcd17 UML: update defconfig
Update defconfig.

Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-23 17:12:13 -08:00
Johann Felix Soden
4631a9a151 uml: fix initrd printk
If the initrd file has zero-length, the error message should contain
the filepath.

Cc: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Johann Felix Soden <johfel@users.sourceforge.net>
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-23 17:12:13 -08:00
Linus Torvalds
2c020a99e0 Mark CC_STACKPROTECTOR as being BROKEN
It's always been broken, but recent fixes actually made it do something,
and now the brokenness shows up as the resulting kernel simply not
working at all.

So it used to be that you could enable this config option, and it just
didn't do anything.  Now we'd better stop people from enabling it by
mistake, since it _does_ do something, but does it so badly as to be
unusable.

Code to actually make it work is pending, but incomplete and won't be
merged into 2.6.25 in any case.

Acked-by: Arjan van de Ven <arjan@infradead.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: James Morris <jmorris@namei.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-22 08:21:38 -08:00
Roland McGrath
f9cb02b0be x86 ptrace: fix compat PTRACE_SETREGS
Simple typo fix for regression introduced by the user_regset changes.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-22 07:35:06 -08:00
Linus Torvalds
20f8d2a493 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: (26 commits)
  PM: Make suspend_device() static
  PCI ACPI: Fix comment describing acpi_pci_choose_state
  Hibernation: Handle DEBUG_PAGEALLOC on x86
  ACPI: fix build warning
  ACPI: TSC breaks atkbd suspend
  ACPI: remove is_processor_present prototype
  acer-wmi: Add DMI match for mail LED on Acer TravelMate 4200 series
  ACPI: sparse fix, replace macro with static function
  ACPI: thinkpad-acpi: add tablet-mode reporting
  ACPI: thinkpad-acpi: minor hotkey_radio_sw fixes
  ACPI: thinkpad-acpi: improve thinkpad-acpi input device documentation
  ACPI: thinkpad-acpi: issue input events for tablet swivel events
  ACPI: thinkpad-acpi: make the video output feature optional
  ACPI: thinkpad-acpi: synchronize input device switches
  ACPI: thinkpad-acpi: always track input device open/close
  ACPI: thinkpad-acpi: trivial fix to documentation
  ACPI: thinkpad-acpi: trivial fix to module_desc typo
  intel_menlo: extract return values using PTR_ERR
  ACPI video: check for error from thermal_cooling_device_register
  ACPI thermal: extract return values using PTR_ERR
  ...
2008-02-21 16:33:19 -08:00
Linus Torvalds
b8967d8883 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6:
  PCI: Fix wrong reference counter check for proc_dir_entry
  PCI: fix up setup-bus.c #ifdef
  PCI: don't load acpi_php when acpi is disabled
  PCI: quirks: set 'En' bit of MSI Mapping for devices onHT-based nvidia platform
  PCI: kernel-doc: fix pci-acpi warning
  PCI: irq: patch for Intel ICH10 DeviceID's
  PCI: pci_ids: patch for Intel ICH10 DeviceID's
  PCI: AMD SATA IDE mode quirk
  PCI: drivers/pcmcia/i82092.c: fix up after pci_bus_region changes
  PCI: hotplug: acpiphp_ibm: Remove get device information
2008-02-21 16:21:08 -08:00
Linus Torvalds
06165752c8 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] 4835/1: Fix stale comment in struct machine_desc description
  [ARM] 4829/1: add .get method to pxa-cpufreq to silence a warning
  [ARM] 4828/1: fix 3 warnings in drivers/video/pxafb.c
  [ARM] 4827/1: fix two warnings in drivers/i2c/busses/i2c-pxa.c
  [ARM] 4826/1: Orion: Register the RTC interrupt on the TS-209
  [ARM] pxa: fix clock lookup to find specific device clocks
2008-02-21 16:19:34 -08:00
Linus Torvalds
0f151e8b21 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] pasemi: Remove warning in mpic_pasemi_msi.c
  [POWERPC] pasemi: Register i2c devices at boot
  [POWERPC] cell: fix spurious false return from spu_trap_data_{map,seg}
  [POWERPC] Fix warning in pseries/power.c
  [POWERPC] Fix bootwrapper builds with older gcc versions
  [POWERPC] Fix dt_mem_next_cell() to read the full address
  [POWERPC] Kill sparse warnings in kprobes
  [POWERPC] spufs: fix scheduler starvation by idle contexts
  [POWERPC] 44x: Add multiplatform defconfig
  [POWERPC] 44x: Fix Kconfig formatting
  [POWERPC] 4xx: Update defconfigs for 2.6.25
  [POWERPC] 4xx: Remove "i2c" and "xxmii-interface" device_types from dts
  [POWERPC] PPC440EP Interrupt Triggering and Level Settings
  [POWERPC] net: NEWEMAC: Remove "rgmii-interface" from rgmii matching table
2008-02-21 16:18:05 -08:00
Yinghai Lu
6e4be1ff2e PCI: don't load acpi_php when acpi is disabled
When acpi=off and pci=nomsi, don't load acpiphp.

Fixes this:

pci_hotplug: PCI Hot Plug PCI Core version: 0.5
acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
ACPI Exception (utmutex-0263): AE_BAD_PARAMETER, Thread
FFFF81103CC54000 could not acquire Mutex [1] [20070126]

[akpm@linux-foundation.org: export acpi_pci_disabled for acpiphp.ko]
[akpm@linux-foundation.org: fix return statement]
Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Cc: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-21 15:34:37 -08:00
Jason Gaston
cc09c5bcf1 PCI: irq: patch for Intel ICH10 DeviceID's
This patch adds the Intel ICH10 LPC Controller DeviceID's.

Signed-off-by: Jason Gaston <jason.d.gaston@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-21 15:34:36 -08:00
Paul Mackerras
a8b87f609d Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jk/spufs into merge 2008-02-21 21:49:13 +11:00
Olof Johansson
9c03385228 [POWERPC] pasemi: Remove warning in mpic_pasemi_msi.c
Remove warning:

arch/powerpc/sysdev/mpic_pasemi_msi.c: In function 'pasemi_msi_setup_msi_irqs':
arch/powerpc/sysdev/mpic_pasemi_msi.c:135: warning: 'addr' is used uninitialized in this function

Turns out addr wasn't even used, it's a leftover from the u3msi code.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-02-21 21:08:35 +11:00
Olof Johansson
be2553ffb5 [POWERPC] pasemi: Register i2c devices at boot
Setup i2c_board_info based on device tree contents.  This has to be
a device_initcall since we need PCI to be probed by the time we
run it, but before the actual driver is initialized.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-02-21 21:08:35 +11:00
Rafael J. Wysocki
8a235efad5 Hibernation: Handle DEBUG_PAGEALLOC on x86
Make hibernation work with CONFIG_DEBUG_PAGEALLOC set on x86, by
checking if the pages to be copied are marked as present in the
kernel mapping and temporarily marking them as present if that's not
the case.  No functional modifications are introduced if
CONFIG_DEBUG_PAGEALLOC is unset.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-02-21 02:15:28 -05:00
David Howells
e80af3a8db FRV: Change the timerfd syscalls to be the same as i386
Change the FRV timerfd syscalls to be the same as i386 timerfd syscalls.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-20 19:58:16 -08:00
David Howells
2d0e2baa25 FRV: Drop the .data.idt section for FRV
There is no .data.idt section for FRV, so drop it from the linker script.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-20 19:58:16 -08:00
Andre Detsch
61b36fc1f7 [POWERPC] cell: fix spurious false return from spu_trap_data_{map,seg}
At present, the __spufs_trap_data_map and __spu_trap_data_seq functions
exit if spu->flags has the SPU_CONTEXT_SWITCH_ACTIVE set. This was
resulting in suprious returns from these functions, as they may be
legitimately called when we have this bit set.

We only use it in these two sanity checks, so this change removes the
flag completely. This fixes hangs in the page-fault path of SPE apps.

Signed-off-by: Andre Detsch <adetsch@br.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
2008-02-20 14:57:36 +11:00
Stephen Rothwell
3d5d27c40f [POWERPC] Fix warning in pseries/power.c
Introduced by commit 79393fc46e
("kobject: convert pseries/power.c to kobj_attr interface").

sys_create_file takes a "struct attrbute *" not a "struct
kobj_addribute *".

arch/powerpc/platforms/pseries/power.c: In function 'apo_pm_init':
arch/powerpc/platforms/pseries/power.c:78: warning: passing argument 2 of 'sysfs_create_file' from incompatible pointer type

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-02-20 13:33:37 +11:00
Josh Boyer
bf2e70ac65 [POWERPC] Fix bootwrapper builds with older gcc versions
GCC versions before 3.4 did not support the -mcpu=440 option.  Use
-mcpu=405 for the 4xx specific bootwrapper files, as that has been
around for much longer.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-02-20 13:33:37 +11:00
Becky Bruce
abe768858a [POWERPC] Fix dt_mem_next_cell() to read the full address
dt_mem_next_cell() currently does of_read_ulong().  This does not
allow for the case where #size-cells and/or #address-cells = 2 on a
32-bit system, as it will end up reading 32 bits instead of the
expected 64.  Change it to use of_read_number instead and always
return a u64.

Signed-off-by: Becky Bruce <becky.bruce at freescale.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-02-20 13:33:37 +11:00
Ananth N Mavinakayanahalli
66200ea222 [POWERPC] Kill sparse warnings in kprobes
Fix sparse warnings in powerpc kprobes:

  CHECK   arch/powerpc/kernel/kprobes.c
arch/powerpc/kernel/kprobes.c:277:6: warning: symbol 'kretprobe_trampoline_holder' was not declared. Should it be static?
arch/powerpc/kernel/kprobes.c:287:15: warning: symbol 'trampoline_probe_handler' was not declared. Should it be static?
arch/powerpc/kernel/kprobes.c:525:16: warning: symbol 'jprobe_return_end' was not declared. Should it be static?

Fix along the same lines as http://lkml.org/lkml/2008/2/13/642

Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-02-20 13:33:37 +11:00
Linus Torvalds
5d9c4a7de6 Merge branch 'agp-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/agp-2.6
* 'agp-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/agp-2.6:
  agp: fix missing casts that produced a warning.
  agp: add support for 662/671 to agp driver
  fix historic ioremap() abuse in AGP
  agp/sis: Suspend support for SiS AGP
  agp/sis: Clear bit 2 from aperture size byte as well
2008-02-19 18:29:57 -08:00
Linus Torvalds
cf8c0d1dbc Merge git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86
* git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: (32 commits)
  x86: fix page_is_ram() thinko
  x86: fix WARN_ON() message: teach page_is_ram() about the special 4Kb bios data page
  x86: i8259A: remove redundant irq_descinitialization
  x86: fix vdso_install breaks user "make install"
  x86: change IO delay back to 0x80
  x86: lds - Use THREAD_SIZE instead of numeric constant
  x86: lds - Use PAGE_SIZE instead of numeric constant
  x86 cleanup: suspend_asm_64.S - use X86_CR4_PGE instead of numeric value
  x86: docs fixes to Documentation/i386/IO-APIC.txt
  x86: fix printout ugliness in cpu info printk
  x86: clean up csum-wrappers_64.c some more
  x86: coding style fixes in arch/x86/lib/csum-wrappers_64.c
  x86: coding style fixes in arch/x86/lib/io_64.c
  x86: exclude vsyscall files from stackprotect
  x86: add pgd_large() on 64-bit, for consistency
  x86: minor cleanup of comments in processor.h
  x86: annotate pci/common.s:pci_scan_bus_with_sysdata with __devinit
  x86: fix section mismatch in head_64.S:initial_code
  x86: fix section mismatch in srat_64.c:reserve_hotadd
  x86: fix section mismatch warning in topology.c:arch_register_cpu
  ...
2008-02-19 15:56:05 -08:00
Linus Torvalds
d5c67bac83 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] BCM47XX: Use new SSB SPROM data structure
  [MIPS] WGT634U: Register MTD as platform device.
  [MIPS] BCM47xx: Add defconfig file.
  [MIPS] RM: fix EISA=n compilation
  [MIPS] PCI: Coding style fixes for pcibios_enable_resources.
  [MIPS] PCI: Port i386 PCI fixes.
  [MIPS] Qemu: finish platform removal
  [MIPS] Wire up the timerfd_*() o32 system calls
  [MIPS] IP28: Add defconfig file
  [MIPS] SB1: Fix CONFIG_SIBYTE_DMA_PAGEOPS build failure.
  [MIPS] BCM1480: Remove stray function call resulting in infinite recursion
  [MIPS] Fix buggy invocations of kmap_coherent()
  [MIPS] Fix broken rm7000/rm9000 interrupt handling
  [MIPS] Handle I-cache coherency in flush_cache_range()
  [MIPS] IP27: Add missing ~ in DMA code.
  [MIPS] Use find_task_by_vpid in system calls
2008-02-19 15:54:22 -08:00
Linus Torvalds
989b0b9302 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/czankel/xtensa-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/czankel/xtensa-2.6: (29 commits)
  [XTENSA] Allow debugger to modify the WINDOWBASE register.
  [XTENSA] Fix makefile to work with binutils-2.18.
  [XTENSA] Fix register corruption for certain processor configurations
  [XTENSA] Fix cache flush macro for D$/I$ aliasing/non-aliasing
  [XTENSA] Exclude thread-global registers from the xtregs structures.
  [XTENSA] Add support for the sa_restorer function
  [XTENSA] Add support for configurable registers and coprocessors
  [XTENSA] Clean up stat structs.
  [XTENSA] Use preprocessor to generate the linker script for the ELF boot image
  [XTENSA] Add missing RELOCATE_ENTRY for debug vector
  [XTENSA] Add volatile keyword to asm statements accessing counter registers
  [XTENSA] Remove unused code
  [XTENSA] Fix modules for non-exec processor configurations
  [XTENSA] Add missing cast in elf.h ELF_CORE_COPY_REGS()
  [XTENSA] Fix comments regarding the number of frames to save
  [XTENSA] Add missing a2 register restore in register spill routine
  [XTENSA] adjust boot linker script start addresses
  [XTENSA] Remove oldmask from sigcontext and fix register flush
  [XTENSA] Clean up elf-gregset.
  [XTENSA] Fix icache flush for cache aliasing
  ...
2008-02-19 15:53:02 -08:00
David Howells
ae5e1b6cc5 MN10300: Update asb2303_defconfig
Update the ASB2303 default configuration.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-19 15:51:36 -08:00
David Howells
aa409e028c MN10300: Make the kernel jump into gdbstub on a BUG
Make the kernel jump into gdbstub (if configured) on a BUG with the register
set from the BUG rather than interpolating another illegal instruction and
leaving gdbstub's idea of the process counter in unsupported_syscall() where
the original BUG was detected.

With this patch, gdbstub reports a SIGABRT to the compiler and reports the
program counter at the original BUG, allowing the execution state at the time
of the BUG to be examined with GDB.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-19 15:51:36 -08:00
David Howells
5efe92c680 MN10300: Introduce barriers to replace removed volatiles in gdbstub
Introduce into the MN10300 gdbstub a couple of barrier() calls to replace the
removed volatility of the input/output index variables for the Rx ring buffer.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-19 15:51:36 -08:00
David Howells
2b79aac903 MN10300: Call update_process_times() outside of the xtime_lock
Call update_process_times() outside of the xtime_lock.  Somewhere somewhere
inside one of the functions called by that, xtime_lock is readlocked, which
ends up in a deadlock situation.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-19 15:51:36 -08:00
Aurelien Jarno
cc2d6f701b [MIPS] BCM47XX: Use new SSB SPROM data structure
Switch the BCM47XX code to the new SPROM data structure now that the old
one has been removed.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-02-19 17:01:34 +00:00
Aurelien Jarno
0788150e63 [MIPS] WGT634U: Register MTD as platform device.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-02-19 17:01:34 +00:00
Aurelien Jarno
e8248d6fe7 [MIPS] BCM47xx: Add defconfig file.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-02-19 17:01:34 +00:00
Ralf Baechle
40d7c1aa61 [MIPS] PCI: Coding style fixes for pcibios_enable_resources.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-02-19 17:01:34 +00:00
Ralf Baechle
986c94854e [MIPS] PCI: Port i386 PCI fixes.
The MIPS version of pcibios_enalbe_resources did not have the fixes
from ed6d14f976 yet which under circumstances
similar to x86 might result in failures.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-02-19 17:01:32 +00:00
Adrian Bunk
dc9175be76 [MIPS] Qemu: finish platform removal
Two files were omitted from the recent removal of the qemu platform.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-02-19 17:01:32 +00:00
Dmitri Vorobiev
6783fe6253 [MIPS] Wire up the timerfd_*() o32 system calls
This patch enables the system calls timerfd_create(), timerfd_settime()
and timerfd_gettime() for MIPS architecture.

Please see the following Bugzilla entry for more details:

http://bugzilla.kernel.org/show_bug.cgi?id=10038

This was tested using a Malta 4Kc board in both little-endian and
big-endian modes. The unit test program is available from the URL
above.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>

[Ralf: Added N64, N32 and O32 bits on 64-bit kernels.]
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-02-19 17:01:31 +00:00
Thomas Bogendoerfer
84502f817b [MIPS] IP28: Add defconfig file
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-02-19 17:01:31 +00:00
Thiemo Seufer
345599ab12 [MIPS] SB1: Fix CONFIG_SIBYTE_DMA_PAGEOPS build failure.
Fix type mismatch warnings for 64-bit kernel builds which trigger -Werror.
The problem affects only SB-1 kernels with CONFIG_SIBYTE_DMA_PAGEOPS
enabled.

Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-02-19 17:01:31 +00:00
Ralf Baechle
af0c4f649d [MIPS] BCM1480: Remove stray function call resulting in infinite recursion
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-02-19 17:01:31 +00:00
Ralf Baechle
9a74b3eb22 [MIPS] Fix buggy invocations of kmap_coherent()
kmap_coherent will only work correctly if the page it is called on is
not marked dirty.  If it's dirty the kernel address of the page should
be used instead of a temporary mapping.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-02-19 17:01:31 +00:00
Thomas Koeller
c42d95d6c4 [MIPS] Fix broken rm7000/rm9000 interrupt handling
Properly acknowledge RM7K and RM9K interrupts. Before this, interrupts were
permanently masked after their first occurrence, making them non-functional.

Signed-off-by: Thomas Koeller <thomas.koeller@baslerweb.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-02-19 17:01:31 +00:00
Ralf Baechle
2eaa7ec286 [MIPS] Handle I-cache coherency in flush_cache_range()
So far flush_cache_range() did't consider the I-cache largely because it
did rarely ever matter to real world code.  This was working primarily
because normally code and data are don't share the same pages - with the
exception of MIPS16 code which uses address constants embedded between
the code.   The following sequence of events may break the code:

 o MIPS16 executable being loaded
 o dynamic linker relocates the address constants embedded into the code:
 o   Uses mprotect(2) to make code pages PROT_READ|PROT_WRITE
 o   Performs the actual relocations by writing to the pages which likely
     are COW.  Because no PROT_EXEC is set I-cache coherence will not be
     considered.
 o   Uses mprotect(2) to switch code pages back to PROT_READ|PROT_EXEC.
     This results in a call to flush_cache_range() which also does not
     consider I-caches.
 o => executing the page just having been relocated may now result in the
   I-cache getting refilled with stale data from memory.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-02-19 17:01:31 +00:00