26 Jan, 2008
2 commits
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I2C adapter drivers are supposed to handle retries on nack by themselves
if they do, so there's no point in setting .retries if they don't.As this retry mechanism is going away (at least in its current form),
clean this up now so that we don't get build failures later.Signed-off-by: Jean Delvare
Acked-by: Mark A. Greer -
Replace all lock_cpu_hotplug/unlock_cpu_hotplug from the kernel and use
get_online_cpus and put_online_cpus instead as it highlights the
refcount semantics in these operations.The new API guarantees protection against the cpu-hotplug operation, but
it doesn't guarantee serialized access to any of the local data
structures. Hence the changes needs to be reviewed.In case of pseries_add_processor/pseries_remove_processor, use
cpu_maps_update_begin()/cpu_maps_update_done() as we're modifying the
cpu_present_map there.Signed-off-by: Gautham R Shenoy
Signed-off-by: Ingo Molnar
25 Jan, 2008
5 commits
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All kobjects require a dynamically allocated name now. We no longer
need to keep track if the name is statically assigned, we can just
unconditionally free() all kobject names on cleanup.Signed-off-by: Kay Sievers
Signed-off-by: Greg Kroah-Hartman -
/sys/power should not be a kset, that's overkill. This patch renames it
to power_kset and fixes up all usages of it in the tree.Cc: Kay Sievers
Signed-off-by: Greg Kroah-Hartman -
This makes the code a bit simpler and and gets us one step closer to
deleting the deprecated subsys_attr code.Cc: Kay Sievers
Cc: Manish Ahuja
Signed-off-by: Greg Kroah-Hartman -
Dynamically create the kset instead of declaring it statically. We also
rename power_subsys to power_kset to catch all users of the variable and
we properly export it so that people don't have to guess that it really
is present in the system.The pseries code is wierd, why is it createing /sys/power if CONFIG_PM
is disabled? Oh well, stupid big boxes ignoring config options...Cc: Kay Sievers
Signed-off-by: Greg Kroah-Hartman -
We don't need a "default" ktype for a kset. We should set this
explicitly every time for each kset. This change is needed so that we
can make ksets dynamic, and cleans up one of the odd, undocumented
assumption that the kset/kobject/ktype model has.This patch is based on a lot of help from Kay Sievers.
Nasty bug in the block code was found by Dave Young
Cc: Kay Sievers
Cc: Dave Young
Signed-off-by: Greg Kroah-Hartman
23 Jan, 2008
1 commit
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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
15 Jan, 2008
2 commits
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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
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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
11 Jan, 2008
1 commit
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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
10 Jan, 2008
1 commit
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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
02 Jan, 2008
1 commit
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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
28 Dec, 2007
2 commits
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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 -
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
14 Dec, 2007
7 commits
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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 -
This patch fixes rounding bug in emulation for double float operating on PowerPC platform.
When pack double float operand, it need to truncate the tail due to the limited precision.
If the truncated part is not zero, the last bit of work bit (totally 3 bits) need to '|' 1.This patch is completed in _FP_FRAC_SRS_2(X,N,sz) (arch/powerpc/math-emu/op-2.h).
Originally the code leftwards rotates the operand to just keep the truncated part,
then check whether it is zero. However, the number it rotates is not correct when
N is not smaller than _FP_W_TYPE_SIZE, and it will cause the work bit '|' 1 in the improper case.This patch fixes this issue.
Signed-off-by: Liu Yu
Signed-off-by: Kumar Gala -
Printk was observed to hang during module unload due to a limited
window of characters that may be sent to the hypervisor. The window
only reexpands when we receive an ack from the HV and the spinlock here
prevents us from ever processing that ack. This fixes it by dropping
the lock before doing the printk, then looping back to the top to
reacquire the lock.Signed-off-by: Stephen Rothwell
Signed-off-by: Paul Mackerras -
This was recently made configurable, and needs to be set for these boards.
Signed-off-by: Scott Wood
Signed-off-by: Kumar Gala -
Signed-off-by: Scott Wood
Signed-off-by: Kumar Gala -
Remove exports of __res and cpm_install_handler/cpm_free_handler. Remove
cpm_install_handler/cpm_free_handler from the commproc.h as well. Both
were used for ARCH=ppc and aren't defined for ARCH=powerpc.CC arch/powerpc/kernel/ppc_ksyms.o
arch/powerpc/kernel/ppc_ksyms.c:180: error: '__res' undeclared here (not in a function)
arch/powerpc/kernel/ppc_ksyms.c:180: warning: type defaults to 'int' in declaration of '__res'
make[1]: *** [arch/powerpc/kernel/ppc_ksyms.o] Error 1
make: *** [arch/powerpc/kernel] Error 2LD .tmp_vmlinux1
arch/powerpc/kernel/built-in.o:(__ksymtab+0x198): undefined reference to `cpm_free_handler'
arch/powerpc/kernel/built-in.o:(__ksymtab+0x1a0): undefined reference to `cpm_install_handler'
make: *** [.tmp_vmlinux1] Error 1Signed-off-by: Jochen Friedrich
Signed-off-by: Andrew Morton
Signed-off-by: Vitaly Bordug
Signed-off-by: Kumar Gala
10 Dec, 2007
1 commit
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PowerMac and CHRP/BriQ platforms have quirks to switch some IDE
controllers from legacy mode to fully native mode. Those quirks
however will not work properly anymore due to a change to the
generic code to better handle legacy IDE resources.This fixes it by moving those quirk to "early" quirks (so they
run before resources are probed for the devices) and clearing
all BARs after the conversion to force a reallocation of sane
values.Signed-off-by: Benjamin Herrenschmidt
Acked-by: Alan Cox
Signed-off-by: Linus Torvalds
08 Dec, 2007
2 commits
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There are a few variants of the STACR register that affect more than
just the "AXON" version of EMAC. Replace the current test of various
chip models with tests for generic properties in the device-tree.Signed-off-by: Benjamin Herrenschmidt
Acked-by: Stefan Roese
Signed-off-by: Jeff Garzik -
More than just "AXON" version of EMAC RGMII supports MDIO, so replace
the current test with a generic property in the device-tree that
indicates such support.Signed-off-by: Benjamin Herrenschmidt
Acked-by: Stefan Roese
Signed-off-by: Jeff Garzik
07 Dec, 2007
2 commits
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* 'merge' of master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc:
[POWERPC] virtex bug fix: Use canonical value for AC97 interrupt xparams
[POWERPC] Update defconfigs
[POWERPC] PS3: Update ps3_defconfig
[POWERPC] Update iseries_defconfig
[POWERPC] Fix hardware IRQ time accounting problem. -
The size of swapper_pg_dir is 8k instead of 4k when using 64-bit PTEs
(CONFIG_PTE_64BIT).This was reported by Cedric Hombourger
Signed-off-by: Kumar Gala
06 Dec, 2007
4 commits
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This updates all the defconfigs in arch/powerpc/configs except iseries
and ps3, which were updated by the preceding commits.This mostly takes the defaults, except that I turned on tickless idle
and high-resolution timers for everything, and turned off instrumentation
support and "Fair group CPU scheduler" for the smaller/embedded platforms.Signed-off-by: Paul Mackerras
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Update ps3_defconfig.
Signed-off-by: Geoff Levand
Signed-off-by: Paul Mackerras -
The notable changes here are the enabling of NO_HZ and HIGH_RES_TIMERS.
Signed-off-by: Stephen Rothwell
Signed-off-by: Paul Mackerras -
The commit fa13a5a1f25f671d084d8884be96fc48d9b68275 (sched: restore
deterministic CPU accounting on powerpc), unconditionally calls
update_process_tick() in system context. In the deterministic
accounting case this is the correct thing to do. However, in the
non-deterministic accounting case we need to not do this, since doing
this results in the time accounted as hardware irq time being
artificially elevated.Also this collapses 2 consecutive '#ifdef CONFIG_VIRT_CPU_ACCOUNTING'
checks in time.h into one for neatness.Signed-off-by: Tony Breeds
Signed-off-by: Paul Mackerras
03 Dec, 2007
1 commit
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This reverts commit a2b51812a4dc5db09ab4d4638d4d8ed456e2457e.
It turns out that this change caused some machines to fail to come
back up when being rebooted, and generated an error in the hypervisor
error log on some machines. The platform architecture (PAPR) is a
little unclear on exactly when the RTAS ibm,os-term function should be
called. Until that is clarified I'm reverting this commit.Signed-off-by: Paul Mackerras
30 Nov, 2007
1 commit
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Ordinarily the size of a pageblock is determined at compile-time based on the
hugepage size. On PPC64, the hugepage size is determined at runtime based on
what is supported by the machine. With legacy machines such as iSeries that
do not support hugepages, HPAGE_SHIFT is 0. This results in pageblock_order
being set to -PAGE_SHIFT and a crash results shortly afterwards.This patch adds a function to select a sensible value for pageblock order by
default when HUGETLB_PAGE_SIZE_VARIABLE is set. It checks that HPAGE_SHIFT
is a sensible value before using the hugepage size; if it is not MAX_ORDER-1
is used.This is a fix for 2.6.24.
Credit goes to Stephen Rothwell for identifying the bug and testing candidate
patches. Additional credit goes to Andy Whitcroft for spotting a problem
with respects to IA-64 before releasing. Additional credit to David Gibson
for testing with the libhugetlbfs test suite.Signed-off-by: Mel Gorman
Tested-by: Stephen Rothwell
Cc: Benjamin Herrenschmidt
Acked-by: Paul Mackerras
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
21 Nov, 2007
4 commits
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USB support for the 8349itx got added a while back; but the defconfig
never got updated. This patch adds the appropriate USB config options
to the defconfigsSigned-off-by: Grant Likely
CC: Scott Wood
CC: Timur Tabi
Signed-off-by: Kumar Gala -
Signed-off-by: Anton Vorontsov
Signed-off-by: Kumar Gala -
mmc_spi has hit the mainline, so we can start using it.
Signed-off-by: Anton Vorontsov
Signed-off-by: Kumar Gala -
Now the rtc class ds1374 driver has been added, remove the old rtc
driver hookup code, add rtc node to device trees, and turn on the
new driver in the defconfigs.Signed-off-by: Kim Phillips
Signed-off-by: Kumar Gala
20 Nov, 2007
3 commits
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My changes to _tlbie to fix 4xx unfortunately broke 8xx build in a
couple of places. This fixes it.Spotted by Olof Johansson.
Signed-off-by: Benjamin Herrenschmidt
Signed-off-by: Vitaly Bordug
Signed-off-by: Paul Mackerras -
The interrupt map for the PCI PHB that had the ULI1575 was not correct
on the boards that have it.* 8544 DS:
- Fix interrupt mask
- Be explicit about use of INTA for on chip peripherals* 8572 DS/8641 HPCN:
- Fix interrupt mask
- Expand interrupt map for PCI slots to cover all functions
- Be explicit about use of INTA for on chip peripheralsSigned-off-by: Kumar Gala