Commit graph android_kernel_sony_sdm845/arch/ppc
Message SHA1
[POWERPC] Export empty_zero_page and copy_page in arch/ppc
Currently ext4 and fuse fail to link if modular:
ERROR: "copy_page" [fs/fuse/fuse.ko] undefined!
ERROR: "empty_zero_page" [fs/ext4/ext4dev.ko] undefined!
make[3]: *** [__modpost] Error 1
make[2]: *** [modules] Error 2
make[1]: *** [sub-make] Error 2

While arch ppc exists it may as well compile, so this exports those
symbols (which are already exported in arch/powerpc).

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

Tony Breeds   authored and   Paul Mackerras   commited 2008-05-31 17:08:28 +10:00
6907fa26d8
[POWERPC] ppc: More compile fixes
This fixes a few more miscellaneous compile problems with ARCH=ppc.

1. Don't compile devres.c on ARCH=ppc, it doesn't have ioremap_flags.
2. Include <asm/irq.h> in setup.c for the __DO_IRQ_CANON definition.
3. Include <linux/proc_fs.h> in residual.c for the
   definition of create_proc_read_entry.
4. Fix xchg_ptr to be a static inline to eliminate a compiler warning.

Signed-off-by: Paul Mackerras <paulus@samba.org>

Paul Mackerras   commited 2008-05-12 22:57:51 +10:00
0d4b6b901c
[POWERPC] ppc: Include <asm/cacheflush.h> in kernel/ppc_ksyms.c
It needs it:

	arch/ppc/kernel/ppc_ksyms.c:152: error: '__flush_icache_range'
	undeclared here (not in a function)

and a few more like that.

Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

Segher Boessenkool   authored and   Paul Mackerras   commited 2008-05-12 20:27:50 +10:00
9717e87fb1
[POWERPC] ppc: Use ebony_defconfig for defconfig
We used to use common_defconfig, but it was removed some time ago.

Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

Segher Boessenkool   authored and   Paul Mackerras   commited 2008-05-12 20:27:50 +10:00
426e53fcba
Merge branch 'for-2.6.26' of git://git.farnsworth.org/dale/linux-2.6-mv643xx_eth into upstream
Jeff Garzik   commited 2008-05-06 12:22:03 -04:00
54c852a2d6
Basic braille screen reader support
This adds a minimalistic braille screen reader support.  This is meant to
be used by blind people e.g.  on boot failures or when / cannot be mounted
etc and thus the userland screen readers can not work.

[akpm@linux-foundation.org: fix exports]
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Cc: Jiri Kosina <jikos@jikos.cz>
Cc: Dmitry Torokhov <dtor@mail.ru>
Acked-by: Alan Cox <alan@redhat.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Samuel Thibault   authored and   Linus Torvalds   commited 2008-04-30 08:29:52 -07:00
f7511d5f66
ppc/powerpc: use kbuild.h instead of defining macros in asm-offsets.c
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Christoph Lameter   authored and   Linus Torvalds   commited 2008-04-29 08:06:30 -07:00
d4d298feea
proper extern for late_time_init
Add a proper extern for late_time_init in include/linux/init.h

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: john stultz <johnstul@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Adrian Bunk   authored and   Linus Torvalds   commited 2008-04-29 08:06:03 -07:00
7d195a5409
iomap: fix 64 bits resources on 32 bits
Almost all implementations of pci_iomap() in the kernel, including the generic
lib/iomap.c one, copies the content of a struct resource into unsigned long's
which will break on 32 bits platforms with 64 bits resources.

This fixes all definitions of pci_iomap() to use resource_size_t.  I also
"fixed" the 64bits arch for consistency.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Benjamin Herrenschmidt   authored and   Linus Torvalds   commited 2008-04-29 08:06:02 -07:00
b70d3a2c59
mv643xx_eth: get rid of static variables, allow multiple instances
Move mv643xx_eth's static state (ethernet register block base address
and MII management interface spinlock) into a struct hanging off the
shared platform device.  This is necessary to support chips that
contain multiple mv643xx_eth silicon blocks.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Dale Farnsworth <dale@farnsworth.org>

Lennert Buytenhek   authored and   Dale Farnsworth   commited 2008-04-28 21:17:07 -07:00
fa3959f457
[POWERPC] Add strncmp to arch/ppc
Commit 0119536cd3 added an assembly
version of strncmp to PowerPC.  However, it changed a common header
file between arch/ppc and arch/powerpc without adding strncmp to
arch/ppc.  This fixes that omission so that arch/ppc links again.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

Josh Boyer   authored and   Paul Mackerras   commited 2008-04-24 20:57:34 +10:00
96f1bb8a41
Merge branch 'powerpc-next' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc
Paul Mackerras   commited 2008-04-24 20:57:20 +10:00
36a23fc8aa
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: (42 commits)
  PCI: Change PCI subsystem MAINTAINER
  PCI: pci-iommu-iotlb-flushing-speedup
  PCI: pci_setup_bridge() mustn't be __devinit
  PCI: pci_bus_size_cardbus() mustn't be __devinit
  PCI: pci_scan_device() mustn't be __devinit
  PCI: pci_alloc_child_bus() mustn't be __devinit
  PCI: replace remaining __FUNCTION__ occurrences
  PCI: Hotplug: fakephp: Return success, not ENODEV, when bus rescan is triggered
  PCI: Hotplug: Fix leaks in IBM Hot Plug Controller Driver - ibmphp_init_devno()
  PCI: clean up resource alignment management
  PCI: aerdrv_acpi.c: remove unneeded NULL check
  PCI: Update VIA CX700 quirk
  PCI: Expose PCI VPD through sysfs
  PCI: iommu: iotlb flushing
  PCI: simplify quirk debug output
  PCI: iova RB tree setup tweak
  PCI: parisc: use generic pci_enable_resources()
  PCI: ppc: use generic pci_enable_resources()
  PCI: powerpc: use generic pci_enable_resources()
  PCI: ia64: use generic pci_enable_resources()
  ...

Linus Torvalds   commited 2008-04-21 15:58:35 -07:00
bda0c0afa7
Merge branch 'irq-cleanups-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6
* 'irq-cleanups-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6:
  [ISDN] minor irq handler cleanups
  drivers/char: minor irq handler cleanups
  [PPC] minor irq handler cleanups
  [BLACKFIN] minor irq handler cleanups
  [SPARC] minor irq handler cleanups
  ARM minor irq handler cleanup: avoid passing unused info to irq

Linus Torvalds   commited 2008-04-21 15:56:19 -07:00
98a1e95f9b
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (202 commits)
  [POWERPC] Fix compile breakage for 64-bit UP configs
  [POWERPC] Define copy_siginfo_from_user32
  [POWERPC] Add compat handler for PTRACE_GETSIGINFO
  [POWERPC] i2c: Fix build breakage introduced by OF helpers
  [POWERPC] Optimize fls64() on 64-bit processors
  [POWERPC] irqtrace support for 64-bit powerpc
  [POWERPC] Stacktrace support for lockdep
  [POWERPC] Move stackframe definitions to common header
  [POWERPC] Fix device-tree locking vs. interrupts
  [POWERPC] Make pci_bus_to_host()'s struct pci_bus * argument const
  [POWERPC] Remove unused __max_memory variable
  [POWERPC] Simplify xics direct/lpar irq_host setup
  [POWERPC] Use pseries_setup_i8259_cascade() in pseries_mpic_init_IRQ()
  [POWERPC] Turn xics_setup_8259_cascade() into a generic pseries_setup_i8259_cascade()
  [POWERPC] Move xics_setup_8259_cascade() into platforms/pseries/setup.c
  [POWERPC] Use asm-generic/bitops/find.h in bitops.h
  [POWERPC] 83xx: mpc8315 - fix USB UTMI Host setup
  [POWERPC] 85xx: Fix the size of qe muram for MPC8568E
  [POWERPC] 86xx: mpc86xx_hpcn - Temporarily accept old dts node identifier.
  [POWERPC] 86xx: mark functions static, other minor cleanups
  ...

Linus Torvalds   commited 2008-04-21 15:50:49 -07:00
9a64388d83
[PPC] Remove mpc885ads and mpc86x ads boards from arch/ppc
We have a board port in arch/powerpc so we dont need this one anymore.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

Kumar Gala   commited 2008-04-21 10:19:09 -05:00
87c448c2f2
[PPC] Remove mpc8272 ads board from arch/ppc
We have a board port in arch/powerpc so we dont need this one anymore.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

Kumar Gala   commited 2008-04-21 10:19:09 -05:00
546be91915
PCI: ppc: use generic pci_enable_resources()
Use the generic pci_enable_resources() instead of the arch-specific code.

Unlike this arch-specific code, the generic version:
    - checks PCI_NUM_RESOURCES (11), not 6, resources
    - skips resources that have neither IORESOURCE_IO nor IORESOURCE_MEM set
    - skips ROM resources unless IORESOURCE_ROM_ENABLE is set
    - checks for resource collisions with "!r->parent", not IORESOURCE_UNSET

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Bjorn Helgaas   authored and   Greg Kroah-Hartman   commited 2008-04-20 21:47:05 -07:00
e789920d04
[PPC] minor irq handler cleanups
- whitespace cleanups

- remove pointless prototype (uses always follow func implementation)

- 'irq' argument is used here purely as a local variable.  rename
  argument to 'dummy' and define 'irq' as local to make this plain.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>

Jeff Garzik   commited 2008-04-20 18:51:01 -04:00
e8f3954958
arch: Remove unnecessary inclusions of asm/semaphore.h
None of these files use any of the functionality promised by
asm/semaphore.h.  It's possible that they rely on it dragging in some
unrelated header file, but I can't build all these files, so we'll have
fix any build failures as they come up.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>

Matthew Wilcox   commited 2008-04-18 22:14:49 -04:00
950e4da324
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (58 commits)
  ide: remove ide_init_default_irq() macro
  ide: move default IDE ports setup to ide_generic host driver
  ide: remove obsoleted "idex=noprobe" kernel parameter (take 2)
  ide: remove needless hwif->irq check from ide_hwif_configure()
  ide: init hwif->{io_ports,irq} explicitly in legacy VLB host drivers
  ide: limit legacy VLB host drivers to alpha, x86 and mips
  cmd640: init hwif->{io_ports,irq} explicitly
  cmd640: cleanup setup_device_ptrs()
  ide: add ide-4drives host driver (take 3)
  ide: remove ppc ifdef from init_ide_data()
  ide: remove ide_default_io_ctl() macro
  ide: remove CONFIG_IDE_ARCH_OBSOLETE_INIT
  ide: add CONFIG_IDE_ARCH_OBSOLETE_DEFAULTS (take 2)
  ppc/pmac: remove no longer needed IDE quirk
  ppc: don't include <linux/ide.h>
  ppc: remove ppc_ide_md
  ppc/pplus: remove ppc_ide_md.ide_init_hwif hook
  ppc/sandpoint: remove ppc_ide_md hooks
  ppc/lopec: remove ppc_ide_md hooks
  ppc/mpc8xx: remove ppc_ide_md hooks
  ...

Linus Torvalds   commited 2008-04-18 08:39:24 -07:00
188da98800
ppc: don't include <linux/ide.h>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Bartlomiej Zolnierkiewicz   commited 2008-04-18 00:46:32 +02:00
7e41e7b3f0
ppc: remove ppc_ide_md
* Add special cases for pplus and prep to ide_default_{irq,io_base}()
  (+ FIXMEs about the need to use IDE platform host driver instead).

* Remove no longer needed ppc_ide_md and struct ide_machdep_calls.

* Then remove <linux/ide.h> include from:
  - arch/powerpc/kernel/setup_32.c
  - arch/ppc/kernel/ppc_ksyms.c
  - arch/ppc/kernel/setup.c
  - arch/ppc/platforms/pplus.c
  - arch/ppc/platforms/prep_setup.c

There should be no functional changes caused by this patch.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Bartlomiej Zolnierkiewicz   commited 2008-04-18 00:46:32 +02:00
1d850bd0b2
ppc/pplus: remove ppc_ide_md.ide_init_hwif hook
* Call ide_init_default_irq() for pplus in init_ide_data().

* Remove no longer needed pplus_ide_init_hwif_ports().

There should be no functional changes caused by this patch.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Bartlomiej Zolnierkiewicz   commited 2008-04-18 00:46:31 +02:00
5d682e4407
ppc/sandpoint: remove ppc_ide_md hooks
* Add IDE_HFLAG_FORCE_LEGACY_IRQS host flag for Motorola-Sandpoint platform
  to sl82c105 host driver.

* Disable ide_generic host driver in arch/ppc/configs/sandpoint_defconfig
  and enable sl82c105 one.

* Remove ppc_ide_md hooks from arch/ppc/platforms/sandpoint.c - no need for
  them (sl82c105 host driver takes care of all this setup).

* Then remove no longer needed <linux/ide.h> include.

* Also update arch/ppc/platforms/sandpoint.h.

Unfortunately (unlike lopec's case) sl82c105 host driver was not enabled
in defconfing so there is a funcionality change.

[ Not a big deal since sl82c105 is superior over ide_generic. ]

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Bartlomiej Zolnierkiewicz   commited 2008-04-18 00:46:30 +02:00
7ef8df81de
ppc/lopec: remove ppc_ide_md hooks
* Add IDE_HFLAG_FORCE_LEGACY_IRQS host flag for Motorola-LoPEC platform
  to sl82c105 host driver.

* Remove ppc_ide_md hooks from arch/ppc/platforms/lopec.c - no need for
  them (sl82c105 host driver takes care of all this setup).

* Then remove no longer needed <linux/ide.h> include.

Looking at arch/ppc/configs/lopec_defconfig:

...
CONFIG_IDE_GENERIC=y
CONFIG_BLK_DEV_IDEPCI=y
# CONFIG_IDEPCI_SHARE_IRQ is not set
# CONFIG_BLK_DEV_OFFBOARD is not set
CONFIG_BLK_DEV_GENERIC=y
# CONFIG_BLK_DEV_OPTI621 is not set
CONFIG_BLK_DEV_SL82C105=y
...

there should be no functional changes unless somebody preferred to disable
sl82c105 host driver and use only ide_generic one (but why would anybody
want to do such thing :-).

PS It seems that lopec_defconfig hasn't been updated for ages but if somebody
is going to do it please look into disabling IDE_GENERIC and BLK_DEV_GENERIC
config options.  Thanks.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Bartlomiej Zolnierkiewicz   commited 2008-04-18 00:46:29 +02:00
5510b12557
ppc/mpc8xx: remove ppc_ide_md hooks
* Initialize IDE ports in mpc8xx_ide_probe().

* Remove m8xx_ide_init() and ppc_ide_md hooks - no need for them
  (IDE mpc8xx host driver takes care of all this setup).

* Remove needless 'if (irq)' and 'if (data_port >= MAX_HWIFS)' checks
  from m8xx_ide_init_hwif_ports().

* Remove 'ctrl_port' and 'irq' arguments from m8xx_ide_init_hwif_ports().

* Rename m8xx_ide_init_hwif_ports() to m8xx_ide_init_ports().

* Add __init tag to m8xx_ide_init_ports().

This patch fixes hwif->irq always being overriden to 0 (== auto-probe, is
this even working on PPC?) because of ide_init_default_irq() call in ide.c.

There should be no other functional changes.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Vitaly Bordug <vitb@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Bartlomiej Zolnierkiewicz   commited 2008-04-18 00:46:29 +02:00
2661b13a21
ppc/ppc4xx: remove ppc_ide_md hooks
There are no "default" IDE ports on PPC4xx so ppc4xx_ide_init_hwif_ports() is
unnecessary, remove it.  Also remove no longer needed <linux/ide.h> include.

There should be no functional changes caused by this patch.

Cc: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Bartlomiej Zolnierkiewicz   commited 2008-04-18 00:46:28 +02:00
e4f7f3a099
ppc/hdpu: remove dead IDE code
Also remove now not needed <linux/ide.h> include.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Bartlomiej Zolnierkiewicz   commited 2008-04-18 00:46:28 +02:00
3671e9a9ec
Generic semaphore implementation
Semaphores are no longer performance-critical, so a generic C
implementation is better for maintainability, debuggability and
extensibility.  Thanks to Peter Zijlstra for fixing the lockdep
warning.  Thanks to Harvey Harrison for pointing out that the
unlikely() was unnecessary.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Acked-by: Ingo Molnar <mingo@elte.hu>

Matthew Wilcox   commited 2008-04-17 10:42:34 -04:00
64ac24e738
[POWERPC] Use __SPIN_LOCK_UNLOCKED macro in mpc52xx_set_psc_clkdiv
__SPIN_LOCK_UNLOCKED is newer and is not deprecated.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>

Robert P. J. Day   authored and   Paul Mackerras   commited 2008-04-07 13:49:21 +10:00
c5d5d94aa5
[POWERPC] ppc: Remove redundant display of free swap space in show_mem()
show_mem() has no need to print the amount of free swap space manually
because show_free_areas() does this already and is called by the
former.

The two outputs only differ in text formatting:

  printk("Free swap  = %lukB\n", ...);
  printk("Free swap:       %6ldkB\n", ...);

Signed-off-by: Johannes Weiner <hannes@saeurebad.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

Johannes Weiner   authored and   Paul Mackerras   commited 2008-04-01 20:45:16 +11:00
1e5ef43e8c
[POWERPC] ppc: Replace remaining __FUNCTION__ occurrences
__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

Harvey Harrison   authored and   Paul Mackerras   commited 2008-04-01 20:43:10 +11:00
1d18a602e9
Merge branch 'linux-2.6'
Paul Mackerras   commited 2008-03-13 15:26:33 +11:00
bed04a4413
[PPC] 8xx: swap bug-fix
This makes swap routines operate correctly on the ppc_8xx based machines.

Recent kernel's size makes swap feature very important on low-memory platfor
those are actually non-operable without it.

Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

Yuri Tikhonov   authored and   Kumar Gala   commited 2008-03-07 16:56:54 -06:00
1757f2d12d
[POWERPC] Use FIELD_SIZEOF in arch/ppc
Robert P.J. Day proposed to use the macro FIELD_SIZEOF in replace of code
that matches its definition.

The modification was made using the following semantic patch
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@haskernel@
@@

#include <linux/kernel.h>

@depends on haskernel@
type t;
identifier f;
@@

- (sizeof(((t*)0)->f))
+ FIELD_SIZEOF(t, f)

@depends on haskernel@
type t;
identifier f;
@@

- sizeof(((t*)0)->f)
+ FIELD_SIZEOF(t, f)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Paul Mackerras <paulus@samba.org>

Julia Lawall   authored and   Paul Mackerras   commited 2008-02-26 22:17:03 +11:00
4217c7b529
[POWERPC] Remove dead code at KernelAltiVec
This code isn't referenced anywhere, so remove it.

Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

Dale Farnsworth   authored and   Paul Mackerras   commited 2008-02-26 22:17:03 +11:00
445857e0fc
[POWERPC] PPC440EP Interrupt Triggering and Level Settings
Corrected IRQ triggering and level settings according to latest revision
of the 440EP User Manual (rev 1.24 nov 16, 2007).

The incorrect settings might cause a failure of the network if both
onchip ethernet ports are under heavy load.

Signed-off-by: Wolfgang Ocker <weo@reccoware.de>
Acked-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

Wolfgang Ocker   authored and   Josh Boyer   commited 2008-02-15 21:33:02 -06:00
7fe5f10ed0
ide: introduce HAVE_IDE
To allow flexible configuration of IDE introduce HAVE_IDE.
All archs except arm, um and s390 unconditionally select it.
For arm the actual configuration determine if IDE is supported.

This is a step towards introducing drivers/Kconfig for arm.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Russell King - ARM Linux <linux@arm.linux.org.uk>
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

Sam Ravnborg   commited 2008-02-09 10:46:40 +01:00
ec7748b59e
CONFIG_HIGHPTE vs. sub-page page tables.
Background: I've implemented 1K/2K page tables for s390.  These sub-page
page tables are required to properly support the s390 virtualization
instruction with KVM.  The SIE instruction requires that the page tables
have 256 page table entries (pte) followed by 256 page status table entries
(pgste).  The pgstes are only required if the process is using the SIE
instruction.  The pgstes are updated by the hardware and by the hypervisor
for a number of reasons, one of them is dirty and reference bit tracking.
To avoid wasting memory the standard pte table allocation should return
1K/2K (31/64 bit) and 2K/4K if the process is using SIE.

Problem: Page size on s390 is 4K, page table size is 1K or 2K.  That means
the s390 version for pte_alloc_one cannot return a pointer to a struct
page.  Trouble is that with the CONFIG_HIGHPTE feature on x86 pte_alloc_one
cannot return a pointer to a pte either, since that would require more than
32 bit for the return value of pte_alloc_one (and the pte * would not be
accessible since its not kmapped).

Solution: The only solution I found to this dilemma is a new typedef: a
pgtable_t.  For s390 pgtable_t will be a (pte *) - to be introduced with a
later patch.  For everybody else it will be a (struct page *).  The
additional problem with the initialization of the ptl lock and the
NR_PAGETABLE accounting is solved with a constructor pgtable_page_ctor and
a destructor pgtable_page_dtor.  The page table allocation and free
functions need to call these two whenever a page table page is allocated or
freed.  pmd_populate will get a pgtable_t instead of a struct page pointer.
 To get the pgtable_t back from a pmd entry that has been installed with
pmd_populate a new function pmd_pgtable is added.  It replaces the pmd_page
call in free_pte_range and apply_to_pte_range.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Martin Schwidefsky   authored and   Linus Torvalds   commited 2008-02-08 09:22:42 -08:00
2f569afd9c
procfs: constify function pointer tables
Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Acked-By: David Howells <dhowells@redhat.com>
Acked-by: Bryan Wu <bryan.wu@analog.com>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Jan Engelhardt   authored and   Linus Torvalds   commited 2008-02-08 09:22:38 -08:00
03a44825be
scheduled OSS driver removal
This patch contains the scheduled removal of OSS drivers whose config
options have been removed in 2.6.23.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Adrian Bunk   authored and   Linus Torvalds   commited 2008-02-06 10:41:02 -08:00
83bad1d764
remove support for un-needed _extratext section
When passing a zero address to kallsyms_lookup(), the kernel thought it was
a valid kernel address, even if it is not.  This is because is_ksym_addr()
called is_kernel_extratext() and checked against labels that don't exist on
many archs (which default as zero).  Since PPC was the only kernel which
defines _extra_text, (in 2005), and no longer needs it, this patch removes
_extra_text support.

For some history (provided by Jon):
 http://ozlabs.org/pipermail/linuxppc-dev/2005-September/019734.html
 http://ozlabs.org/pipermail/linuxppc-dev/2005-September/019736.html
 http://ozlabs.org/pipermail/linuxppc-dev/2005-September/019751.html

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jon Loeliger <jdl@freescale.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Robin Getz   authored and   Linus Torvalds   commited 2008-02-06 10:41:01 -08:00
a3b81113fb
Remove pointless casts from void pointers
Mostly in and around irq handlers.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: "Luck Tony" <tony.luck@intel.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Cc: Karsten Keil <kkeil@suse.de>
Acked-by: "John W. Linville" <linville@tuxdriver.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Jeff Garzik   authored and   Linus Torvalds   commited 2008-02-06 10:41:01 -08:00
15aafa2f9d
add mm argument to pte/pmd/pud/pgd_free
(with Martin Schwidefsky <schwidefsky@de.ibm.com>)

The pgd/pud/pmd/pte page table allocation functions get a mm_struct pointer as
first argument.  The free functions do not get the mm_struct argument.  This
is 1) asymmetrical and 2) to do mm related page table allocations the mm
argument is needed on the free function as well.

[kamalesh@linux.vnet.ibm.com: i386 fix]
[akpm@linux-foundation.org: coding-syle fixes]
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Benjamin Herrenschmidt   authored and   Linus Torvalds   commited 2008-02-05 09:44:18 -08:00
5e5419734c
Move Kconfig.instrumentation to arch/Kconfig and init/Kconfig
Move the instrumentation Kconfig to

arch/Kconfig for architecture dependent options
  - oprofile
  - kprobes

and

init/Kconfig for architecture independent options
  - profiling
  - markers

Remove the "Instrumentation Support" menu. Everything moves to "General setup".
Delete the kernel/Kconfig.instrumentation file.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Mathieu Desnoyers   authored and   Sam Ravnborg   commited 2008-02-03 08:58:08 +01:00
125e564582
Add HAVE_KPROBES
Linus:

On the per-architecture side, I do think it would be better to *not* have
internal architecture knowledge in a generic file, and as such a line like

        depends on X86_32 || IA64 || PPC || S390 || SPARC64 || X86_64 || AVR32

really shouldn't exist in a file like kernel/Kconfig.instrumentation.

It would be much better to do

        depends on ARCH_SUPPORTS_KPROBES

in that generic file, and then architectures that do support it would just
have a

        bool ARCH_SUPPORTS_KPROBES
                default y

in *their* architecture files. That would seem to be much more logical,
and is readable both for arch maintainers *and* for people who have no
clue - and don't care - about which architecture is supposed to support
which interface...

Changelog:

Actually, I know I gave this as the magic incantation, but now that I see
it, I realize that I should have told you to just use

        config KPROBES_SUPPORT
                def_bool y

instead, which is a bit denser.

We seem to use both kinds of syntax for these things, but this is really
what "def_bool" is there for...

- Use HAVE_KPROBES
- Use a select

- Yet another update :
Moving to HAVE_* now.

- Update ARM for kprobes support.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Mathieu Desnoyers   authored and   Sam Ravnborg   commited 2008-02-03 08:58:07 +01:00
3f550096de
Add HAVE_OPROFILE
Linus:
On the per-architecture side, I do think it would be better to *not* have
internal architecture knowledge in a generic file, and as such a line like

        depends on X86_32 || IA64 || PPC || S390 || SPARC64 || X86_64 || AVR32

really shouldn't exist in a file like kernel/Kconfig.instrumentation.

It would be much better to do

        depends on ARCH_SUPPORTS_KPROBES

in that generic file, and then architectures that do support it would just
have a

        bool ARCH_SUPPORTS_KPROBES
                default y

in *their* architecture files. That would seem to be much more logical,
and is readable both for arch maintainers *and* for people who have no
clue - and don't care - about which architecture is supposed to support
which interface...

Changelog:

Actually, I know I gave this as the magic incantation, but now that I see
it, I realize that I should have told you to just use

        config ARCH_SUPPORTS_KPROBES
                def_bool y

instead, which is a bit denser.

We seem to use both kinds of syntax for these things, but this is really
what "def_bool" is there for...

Changelog :

- Moving to HAVE_*.
- Add AVR32 oprofile.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Mathieu Desnoyers   authored and   Sam Ravnborg   commited 2008-02-03 08:58:07 +01:00
42d4b839c8
Merge branch 'linux-2.6'
Paul Mackerras   commited 2008-01-31 11:25:51 +11:00
bd45ac0c5d
Merge branch 'for-2.6.25' of git://git.secretlab.ca/git/linux-2.6-mpc52xx
Paul Mackerras   commited 2008-01-31 10:50:17 +11:00
4eece4ccf9