linux.git/arch/powerpc, branch v2.6.24

Fix file references in documentation and Kconfig

2008-01-22T18:43:36+00:00

Fix typo in arch/powerpc/boot/flatdevtree_env.h.
There is no Documentation/networking/ixgbe.txt.

README.cycladesZ is now in Documentation/.
wavelan.p.h is now in drivers/net/wireless/.
HFS.txt is now Documentation/filesystems/hfs.txt.
OSS-files are now in sound/oss/.

Signed-off-by: Johann Felix Soden 
Acked-by: Randy Dunlap 
Signed-off-by: Linus Torvalds

[POWERPC] Fix boot failure on POWER6

2008-01-15T06:30:58+00:00

Commit 473980a99316c0e788bca50996375a2815124ce1 added a call to clear
the SLB shadow buffer before registering it.  Unfortunately this means
that we clear out the entries that slb_initialize has previously set in
there.  On POWER6, the hypervisor uses the SLB shadow buffer when doing
partition switches, and that means that after the next partition switch,
each non-boot CPU has no SLB entries to map the kernel text and data,
which causes it to crash.

This fixes it by reverting most of 473980a9 and instead clearing the
3rd entry explicitly in slb_initialize.  This fixes the problem that
473980a9 was trying to solve, but without breaking POWER6.

Signed-off-by: Paul Mackerras

[POWERPC] Workaround for iommu page alignment

2008-01-15T04:39:59+00:00

Commit 5d2efba64b231a1733c4048d1708d77e07f26426 changed our iommu code
so that it always uses an iommu page size of 4kB.  That means with our
current code, drivers may do a dma_map_sg() of a 64kB page and obtain
a dma_addr_t that is only 4k aligned.

This works fine in most cases except for some infiniband HW it seems,
where they tell the HW about the page size and it ignores the low bits
of the DMA address.

This works around it by making our IOMMU code enforce a PAGE_SIZE alignment
for mappings of objects that are page aligned in the first place and whose
size is larger or equal to a page.

Signed-off-by: Benjamin Herrenschmidt 
Signed-off-by: Paul Mackerras

[POWERPC] Fix CPU hotplug when using the SLB shadow buffer

2008-01-11T05:33:55+00:00

Before we register the SLB shadow buffer, we need to invalidate the
entries in the buffer, otherwise we can end up stale entries from when
we previously offlined the CPU.

This does this invalidate as well as unregistering the buffer with
PHYP before we offline the cpu.  Tested and fixes crashes seen on
970MP (thanks to tonyb) and POWER5.

Signed-off-by: Michael Neuling 
Signed-off-by: Paul Mackerras

[POWERPC] efika: add phy-handle property for fec_mpc52xx

2008-01-10T15:12:59+00:00

The new network driver fec_mpc52xx will not work on efika because the
firmware does not provide all required properties.
http://www.powerdeveloper.org/asset/by-id/46 has a Forth script to
create more properties. But only the phy stuff is required to get a
working network.

This should go into the kernel because its appearently
impossible to boot the script via tftp and then load the real boot
binary (yaboot or zimage).

Signed-off-by: Olaf Hering 
Signed-off-by: Grant Likely 
Acked-by: Benjamin Herrenschmidt

[POWERPC] Fix build failure on Cell when CONFIG_SPU_FS=y

2008-01-02T04:56:30+00:00

Commit aed3a8c9bb1a8623a618232087c5ff62718e3b9a introduced a
definition of notify_spus_active in .../cell/spu_syscalls.c, and
another definition under #ifndef MODULE in .../cell/spufs/sched.c.
The latter is not necessary and causes the build to fail when
CONFIG_SPU_FS=y, so this removes it.  It also removes the export
of do_notify_spus_active, which is unnecessary.

Signed-off-by: Paul Mackerras 
Acked-by: Arnd Bergmann 
Acked-by: Jeremy Kerr

[POWERPC] PS3: Fix printing of os-area magic numbers

2007-12-28T04:07:52+00:00

Fix a bug in the printing of the os-area magic numbers which assumed
that magic numbers were zero terminated strings.  The magic numbers
are represented in memory as integers.  If the os-area sections are
not initialized correctly they could contained random data that would
be printed to the display.  Also unify the handling of header and db
magic numbers and make both of type array of u8.

Signed-off-by: Geoff Levand 
Signed-off-by: Paul Mackerras

[POWERPC] Oprofile: Remove dependency on spufs module

2007-12-28T04:07:52+00:00

This removes an OProfile dependency on the spufs module.  This
dependency was causing a problem for multiplatform systems that are
built with support for Oprofile on Cell but try to load the oprofile
module on a non-Cell system.

Signed-off-by: Bob Nelson 
Signed-off-by: Arnd Bergmann 
Acked-by: Jeremy Kerr 
Signed-off-by: Paul Mackerras

Merge branch 'for-2.6.24' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc into merge

2007-12-14T05:46:50+00:00

[POWERPC] Make PS3_SYS_MANAGER default y, not m

2007-12-14T05:45:00+00:00

Currently it's impossible to build a ps3_defconfig which will reboot
without modules installed. This makes it all too easy to find yourself
with a PS3 that won't reboot.

This is because the system manager driver, which provides the reboot
mechanism, is only selectable if PS3_ADVANCED is set, else it defaults
to m. In ps3_defconfig PS3_ADVANCED is not set, therefore the system
manager is built as a module.

It would be desirable IMHO for the defconfig to produce a kernel that
boots and reboots, without needing modules to be installed.

Signed-off-by: Michael Ellerman 
Acked-by: Geoff Levand 
Signed-off-by: Paul Mackerras