Commit Graph

30896 Commits (99cf610aa4840d822cdc67d194b23b55010ca9bd)

Author SHA1 Message Date
Linus Torvalds 45c82b5a77 Merge branch 'header-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'header-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (90 commits)
  headers_check fix: x86, swab.h
  headers_check fix: x86, sigcontext32.h
  headers_check fix: x86, sigcontext.h
  headers_check fix: x86, ptrace-abi.h
  headers_check fix: x86, mtrr.h
  headers_check fix: x86, mce.h
  headers_check fix: x86, kvm.h
  headers_check fix: x86, e820.h
  headers_check fix: linux/rtnetlink.h
  headers_check fix: linux/nubus.h
  headers_check fix: video/uvesafb.h
  headers_check fix: video/sisfb.h
  headers_check fix: sound/hdsp.h
  headers_check fix: mtd/inftl-user.h
  headers_check fix: linux/virtio_net.h
  headers_check fix: linux/virtio_console.h
  headers_check fix: linux/virtio_blk.h
  headers_check fix: linux/videodev.h
  headers_check fix: linux/video_encoder.h
  headers_check fix: linux/video_decoder.h
  ...
2009-01-31 15:56:23 -08:00
Linus Torvalds f6490438fc Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, ds, bts: cleanup/fix DS configuration
  ring-buffer: reset timestamps when ring buffer is reset
  trace: set max latency variable to zero on default
  trace: stop all recording to ring buffer on ftrace_dump
  trace: print ftrace_dump at KERN_EMERG log level
  ring_buffer: reset write when reserve buffer fail
  tracing/function-graph-tracer: fix a regression while suspend to disk
  ring-buffer: fix alignment problem
2009-01-31 15:53:30 -08:00
Linus Torvalds e81cfd214f Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86 setup: fix asm constraints in vesa_store_edid
  xen: make sysfs files behave as their names suggest
  x86: tone down mtrr_trim_uncached_memory() warning
  x86: correct the CPUID pattern for MSR_IA32_MISC_ENABLE availability
2009-01-31 15:52:46 -08:00
Andreas Schwab 7fc49f1981 x86 setup: fix asm constraints in vesa_store_edid
Impact: fix potential miscompile (currently believed non-manifest)

As the comment explains, the VBE DDC call can clobber any register.
Tell the compiler about that fact.

Signed-off-by: Andreas Schwab <schwab@suse.de>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-30 23:55:25 +01:00
Manuel Lauss 2d2eca4d11 MIPS: Alchemy: time.c build fix
In Linus' current -git the cpumask member is now a pointer.

Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:33:01 +00:00
Phil Sutter 0fc6bc0d6e MIPS: RB532: Export rb532_gpio_set_func()
This kernel symbol provides a way for drivers to switch on alternate
function for a certain GPIO pin. Turning it off is done implicitly when
changing the GPIO direction, as that would be fixed when using the given
pin als alternate function.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:33:01 +00:00
Phil Sutter 3828ee047d MIPS: RB532: Update headers
Remove the {set,get}_434_reg() prototypes, as the functions have been
removed. Also move the prototypes for {get,set}_latch_u5() to the correct
place.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:33:01 +00:00
Phil Sutter 1c4db8e828 MIPS: RB532: Simplify dev3 init
As rb532_dev3_ctl_res is not used by any platform device, it can be dropped
when not used for holding the physical address of the device 3 controller.

Also a size of one byte should suffice when ioremapping the physical
address mentioned above, as only a single byte is being read from and
written to it.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:33:01 +00:00
Phil Sutter 4ca3803f81 MIPS: RB532: Remove {get,set}_434_reg()
These kernel symbols are unused. Also, since dev3 init has been moved to
devices.c, set_434_reg() breaks compiling as it uses dev3.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:33:00 +00:00
Phil Sutter 36f2db4b9c MIPS: RB532: Move dev3 init code to devices.c
This code doesn't belong to gpio.c, as it's completely unrelated to
GPIO. As dev1 and dev2 init code is in devices.c, it seems to be a more
adequate place.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:33:00 +00:00
Phil Sutter 7060886fb7 MIPS: RB532: Fix set_latch_u5()
The data to be written is just a byte, so use writeb instead of writel.
Also, dev3.base contains the address, not the data so referencing here
is wrong.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:33:00 +00:00
Phil Sutter deb1003329 MIPS: RB532: Fix init of rb532_dev3_ctl_res
This register just contains the address of the actual resource, so
initialisation has to be the same as cf_slot0_res and nand_slot0_res.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:33:00 +00:00
Phil Sutter 94d2cc1b8b MIPS: RB532: Use driver_data instead of platform_data
As the korina ethernet driver uses platform_get_drvdata() to extract the
driver specific data from the platform device, driver_data has to be
used here.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:33:00 +00:00
Phil Sutter 1452fc7d17 MIPS: RB532: Detect uart type, add platform device
Auto-detection works just fine, so use it instead of specifying the type
manually. Also define a platform device for the uart, as suggested by
David Daney.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:33:00 +00:00
Phil Sutter 84c2c562c1 MIPS: RB532: remove useless CF GPIO initialisation
As the pata-rb532-cf driver calls gpio_direction_input(), the calls to
rb532_gpio_set_func() and rb532_gpio_direction_input() are not needed since
the alternate function is automatically being disabled when changing the
GPIO pin direction.
The later two calls to rb532_gpio_set_{ilevel,istat}() are implicitly being
done by the IRQ initialisation of pata-rb532-cf.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:32:59 +00:00
Phil Sutter 33763d571d MIPS: RB532: Auto disable GPIO alternate function
When a driver calls gpio_set_direction_{input,output}(), it obviously
doesn't want the alternate function for that pin to be active (as the
direction would not matter in that case). This patch ensures alternate
function is disabled when the direction is being changed.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:32:59 +00:00
Phil Sutter 4aa0f4d726 MIPS: RB532: Add set_type() function to IRQ struct.
Interrupt Group 4 mapps the GPIO pins enabled as interrupt sources;
add defines to make this clear when addressing them later in code.

The mapped GPIOs support triggering on either level high or low. To
achieve this, the set_type() function calls rb532_gpio_set_ilevel() for
interrupts of the above mentioned group.

As there is no way to alter the triggering characteristics of the other
interrupts, accept level triggering on status high only. (This is just a
guess; but as the system boots fine and interrupt-driven devices (e.g.
serial console) work with no implications, it seems to be right.)

To clear a GPIO mapped IRQ, the source has to be cleared (i.e., the
interrupt status bit of the corresponding GPIO pin). This is done inside
rb532_disable_irq().

After applying these changes I could undo most of my former "fixes" to
pata-rb532-cf. Particularly all interrupt handling can be done
generically via set_irq_type() as it was before.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:32:59 +00:00
Phil Sutter fb91e2cb7d MIPS: RC32434: Define io_map_base for PCI controller
The code is rather based on trial-and-error than knowledge. Verified Via
Rhine functionality in PIO as well as MMIO mode.

[Looks sane -- Ralf]

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Tested-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:32:59 +00:00
Phil Sutter 5379a5fdf3 MIPS: RB532: Fix bit swapping in rb532_set_bit()
The algorithm works unconditionally. If bitval is one, the first line is
a no op and the second line sets the bit at offset position. Vice versa,
if bitval is zero, the first line clears the bit at offset position and
the second line is a no op.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:32:59 +00:00
David Daney f839490ab4 MIPS: Use hardware watchpoints on all R1 and R2 CPUs.
The previous definition inadvertently omits Octeon which currently is
treated as an architecture variant separate from MIPS32 and MIPS64.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:32:59 +00:00
David Daney 8bc6d05b48 MIPS: Read watch registers with interrupts disabled.
If a context switch occurred between the watch exception and reading the
watch registers, it would be possible for the new process to corrupt their
state.  Enabling interrupts only after the watch registers are read avoids
this race.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:32:58 +00:00
David Daney 7adbedaf44 MIPS: Fix a typo in watchpoint register structure.
This fixes the ptrace ABI for watch registers, and should allow 64bit
kernels to use the watch register support.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:32:58 +00:00
Atsushi Nemoto 65655b5a94 MIPS: TXx9: Add support for TX4939 internal RTC
Add platform support to use rtc-tx4939 driver.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:32:58 +00:00
Ralf Baechle 42fe7ee31f MIPS: R2: Fix broken installation of cache error handler.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:32:58 +00:00
Ralf Baechle 634286f127 MIPS: IP27: Switch from DMA_IP27 to DMA_COHERENT
The special IP27 DMA code selected by DMA_IP27 has been removed a while
ago turning DMA_IP27 into almost a nop.  Also fixup the broken logic of
its last users memcpy.S and memcpy-inatomic.s.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:32:58 +00:00
Ralf Baechle 732f0462d5 MIPS: Add return value checks to user_termio_to_kernel_termios()
And while at it, convert all functions from macros to inline functions
for sanity.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:32:57 +00:00
Huang Weiyi 2d8965156b MIPS: Octeon: Remove duplicated #includes
Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:32:57 +00:00
Ralf Baechle 915ec1e216 MIPS: atomic_*(): Change type of intermediate variables.
This shaves of 1912 bytes of an IP27 defconfig kernel and avoids
unexpected overflow behaviour in atomic_sub_if_positive.  Apply the same
changes to the atomic64_* functions for consistency.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:32:57 +00:00
Ralf Baechle c7c1e3846b MIPS: Port "mm: invoke oom-killer from page fault" from UML / x86
Original commit 1c0fe6e3bd.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:32:57 +00:00
Ralf Baechle a8ca8b64e3 MIPS: Avoid destructive invalidation on partial cachelines.
See discussion e9c3a7c20901051031y528d0d31r18d44c5096c59e0@mail.gmail.com.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:32:57 +00:00
Ralf Baechle 012703e0fc MIPS: SMTC: Fix build after recent creditial changes.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-01-30 21:32:56 +00:00
Jaswinder Singh Rajput 7cff3608d2 headers_check fix: x86, swab.h
fix the following 'make headers_check' warnings:

  usr/include/asm/swab.h:4: include of <linux/types.h> is preferred over <asm/types.h>
  usr/include/asm/swab.h:7: found __[us]{8,16,32,64} type without #include <linux/types.h>

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
2009-01-31 00:19:32 +05:30
Jaswinder Singh Rajput 2de548faa7 headers_check fix: x86, sigcontext32.h
fix the following 'make headers_check' warning:

  usr/include/asm/sigcontext32.h:20: found __[us]{8,16,32,64} type without #include <linux/types.h>

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
2009-01-31 00:18:58 +05:30
Jaswinder Singh Rajput e59afe6a21 headers_check fix: x86, sigcontext.h
fix the following 'make headers_check' warnings:

  usr/include/asm/sigcontext.h:5: include of <linux/types.h> is preferred over <asm/types.h>
  usr/include/asm/sigcontext.h:24: found __[us]{8,16,32,64} type without #include <linux/types.h>

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
2009-01-31 00:18:30 +05:30
Jaswinder Singh Rajput 420ab35eef headers_check fix: x86, ptrace-abi.h
fix the following 'make headers_check' warnings:

  usr/include/asm/ptrace-abi.h:86: include of <linux/types.h> is preferred over <asm/types.h>
  usr/include/asm/ptrace-abi.h:93: found __[us]{8,16,32,64} type without #include <linux/types.h>

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
2009-01-31 00:18:03 +05:30
Jaswinder Singh Rajput d122072cc0 headers_check fix: x86, mtrr.h
fix the following 'make headers_check' warning:

  usr/include/asm/mtrr.h:61: found __[us]{8,16,32,64} type without #include <linux/types.h>

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
2009-01-31 00:17:39 +05:30
Jaswinder Singh Rajput 999b697b9d headers_check fix: x86, mce.h
fix the following 'make headers_check' warnings:

  usr/include/asm/mce.h:7: include of <linux/types.h> is preferred over <asm/types.h>
  usr/include/asm/mce.h:29: found __[us]{8,16,32,64} type without #include <linux/types.h>

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
2009-01-31 00:17:13 +05:30
Jaswinder Singh Rajput cef3767852 headers_check fix: x86, kvm.h
fix the following 'make headers_check' warnings:

  usr/include/asm/kvm.h:9: include of <linux/types.h> is preferred over <asm/types.h>
  usr/include/asm/kvm.h:16: found __[us]{8,16,32,64} type without #include <linux/types.h>

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
2009-01-31 00:16:44 +05:30
Jaswinder Singh Rajput 999721ca6d headers_check fix: x86, e820.h
fix the following 'make headers_check' warning:

  usr/include/asm/e820.h:44: found __[us]{8,16,32,64} type without #include <linux/types.h>

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
2009-01-31 00:16:22 +05:30
Randy Dunlap 5872fb94f8 Documentation: move DMA-mapping.txt to Doc/PCI/
Move DMA-mapping.txt to Documentation/PCI/.

DMA-mapping.txt was supposed to be moved from Documentation/ to
Documentation/PCI/.  The 00-INDEX files in those two directories
were updated, along with a few other text files, but the file
itself somehow escaped being moved, so move it and update more
text files and source files with its new location.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
cc:	Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29 18:19:29 -08:00
Linus Torvalds 6e3eed9850 Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
  lguest: Fix a memory leak with the lg object during launcher close
  lguest: disable the FORTIFY for lguest.
  lguest: typos fix
2009-01-29 18:10:36 -08:00
Ivan Kokshaysky 945048ca36 alpha: fix the BUG() macro
The commit "alpha: teach the compiler that BUG doesn't return"
(ed6b9b97f4) moved the asm code into inline
function which takes __FILE__ and __LINE__ as arguments.  This violates
asm constrains there ("i" - an immediate operand with constant value), so
that compile may result in warning or error, depending on compiler
version.

Just adding an infinite loop to the BUG() is sufficient.

Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29 18:04:44 -08:00
Ivan Kokshaysky ee0c468bb1 alpha: compile fixes
- jensen build: fix conflicting declarations for pci_alloc_consistent()
  and undefined virt_to_phys();

- SMP: arch/alpha/kernel/smp.c:124: warning: passing argument 2
       of '__cpu_test_and_set' discards qualifiers from pointer target type
  Interestingly, this only happens with gcc-4.2; gcc <= 4.1 and gcc-4.3
  are OK. Fixed with extra assignment.

Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29 18:04:44 -08:00
Ivan Kokshaysky e5d9a90c36 alpha: use syscall wrappers
Convert OSF syscalls and add alpha specific SYSCALL_ALIAS() macro.

Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-29 18:04:44 -08:00
Atsushi SAKAI 72410af921 lguest: typos fix
3 points

lguest_asm.S => i386_head.S
LHCALL_BREAK => LHREQ_BREAK
perferred    => preferred

Signed-off-by: Atsushi SAKAI <sakaia@jp.fujitsu.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2009-01-30 11:34:10 +10:30
Ingo Molnar bf3647c44b x86: tone down mtrr_trim_uncached_memory() warning
kerneloops.org is reporting a lot of these warnings that come due to
vmware not setting up any MTRRs for emulated CPUs:

| Reported 709 times (14696 total reports)
| BIOS bug (often in VMWare) where the MTRR's are set up incorrectly
| or not at all
|
| This warning was last seen in version 2.6.29-rc2-git1, and first
| seen in 2.6.24.
|
| More info:
|   http://www.kerneloops.org/searchweek.php?search=mtrr_trim_uncached_memory

Keep a one-liner KERN_INFO about it - so that we have so notice if empty
MTRRs are caused by native hardware/BIOS weirdness.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-29 11:45:35 +01:00
Linus Torvalds c4568d6c7e Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/mm: Fix handling of _PAGE_COHERENT in BAT setup code
  powerpc/pseries: Correct VIO bus accounting problem in CMO env.
  powerpc: More printing warning fixes for the l64 to ll64 conversion
  powerpc: Remove arch/ppc cruft from Kconfig
  powerpc: Printing fix for l64 to ll64 conversion: phyp_dump.c
  powerpc/embedded6xx: Update defconfigs
  powerpc/8xx: Update defconfigs
  powerpc/86xx: Update defconfigs
  powerpc/83xx: Update defconfigs
  powerpc/85xx: Update defconfigs
  powerpc/mpc8313erdb: fix kernel panic because mdio device is not probed
  powerpc/4xx: Update multi-board PowerPC 4xx defconfigs
  powerpc/44x: Update PowerPC 44x defconfigs
  powerpc/40x: Update PowerPC 40x defconfigs
  powerpc/85xx: Fix typo in mpc8572ds dts
  powerpc/44x: Warp patches for the new NDFC driver
  powerpc/4xx: DTS: Add Add'l SDRAM0 Compatible and Interrupt Info
2009-01-28 09:01:42 -08:00
Linus Torvalds 78a768b6ca Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68knommu: fix 5329 ColdFire periphal addressing
  uclinux: add process name to allocation error message
  m68knommu: correct the mii calculations for 532x ColdFire FEC
  m68knommu: add ColdFire M532x to the FEC configuration options
  m68knommu: fix syscall restarting
  m68knommu: remove the obsolete and long unused comempci chip support
  m68knommu: remove the no longer used PCI support option
  m68knommu: remove obsolete and unused eLIA board
  m68knommu: set NO_DMA
  m68knommu: fix cache flushing for the 527x ColdFire processors
  m68knommu: fix ColdFire 5272 serial baud rates in mcf.c
  m68knommu: use one exist from execption
2009-01-28 08:41:57 -08:00
Gerhard Pircher 4c456a67f5 powerpc/mm: Fix handling of _PAGE_COHERENT in BAT setup code
_PAGE_COHERENT is now always set in _PAGE_RAM resp. PAGE_KERNEL.
Thus it has to be masked out, if the BAT mapping should be non
cacheable or CPU_FTR_NEED_COHERENT is not set.

This will work on normal SMP setups because we force-set
CPU_FTR_NEED_COHERENT as part of CPU_FTR_COMMON on SMP.

Signed-off-by: Gerhard Pircher <gerhard_pircher@gmx.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-01-28 17:15:52 +11:00
Robert Jennings 69b052e828 powerpc/pseries: Correct VIO bus accounting problem in CMO env.
In the VIO bus code the wrappers for dma alloc_coherent and free_coherent
calls are rounding to IOMMU_PAGE_SIZE.  Taking a look at the underlying
calls, the actual mapping is promoted to PAGE_SIZE.  Changing the
rounding in these two functions fixes under-reporting the entitlement
used by the system.  Without this change, the system could run out of
entitlement before it believes it has and incur mapping failures at the
firmware level.

Also in the VIO bus code, the wrapper for dma map_sg is not exiting in
an error path where it should.  Rather than fall through to code for the
success case, this patch adds the return that is needed in the error path.

Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-01-28 17:15:52 +11:00