08 Dec, 2006
20 commits
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The new shared APM emulation just like its ARM and MIPS predecessors uses
pm_suspend() which was only exported on SH. Move export to close to it's
definition where it really should be anyway.Signed-off-by: Ralf Baechle
Cc: Russell King
Cc: Paul Mundt
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
When the UML network driver generates random MACs for its devices, it was
possible for a number of UMLs to get the same MACs because the ethernet
initialization was done before the random pool was properly seeded.This patch moves the initialization later so that it gets better randomness.
Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
We were using the wrong symbol to size register files.
Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Include the proper header to get a definition of PAGE_SHIFT.
Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
We were not including stddef.h in files that used offsetof.
One file was also including linux/stddef.h for no perciptible reason.
Signed-off-by: Jeff Dike
Cc: Paolo 'Blaisorblade' Giarrusso
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Replace kmalloc+memset with kzalloc
Signed-off-by: Yan Burman
Cc: Roman Zippel
Cc: Geert Uytterhoeven
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Make swsusp support i386 systems with PAE or without PSE.
This is done by creating temporary page tables located in resume-safe page
frames before the suspend image is restored in the same way as x86_64 does
it.Signed-off-by: Rafael J. Wysocki
Cc: Andi Kleen
Cc: Dave Jones
Cc: Nigel Cunningham
Cc: Pavel Machek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Move process freezing functions from include/linux/sched.h to freezer.h, so
that modifications to the freezer or the kernel configuration don't require
recompiling just about everything.[akpm@osdl.org: fix ueagle driver]
Signed-off-by: Nigel Cunningham
Cc: "Rafael J. Wysocki"
Cc: Pavel Machek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Now that we have pci_get_bus_and_slot we can do the job correctly. Note that
some of these calls intentionally leak a device - this is because the device
in question is always needed from boot to reboot.Signed-off-by: Alan Cox
Cc: Richard Henderson
Cc: Ivan Kokshaysky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Mariusz Kozlowski
Cc: Yoshinori Sato
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
While working on SH kprobes, I noticed that avr32 got the preemption
handling wrong in the no probe case. The idea is that upon entry of
kprobe_handler() preemption is disabled outright across the life of the
kprobe, only to be re-enabled in post_kprobe_handler().However, in the event that the probe is never activated, there's never any
chance of hitting the post probe handler, which allows for the current
avr32 implementation to disable preemption indefinitely, as it's currently
missing a re-enable when no probe is activated.Signed-off-by: Paul Mundt
Cc: Haavard Skinnemoen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch fixes the following compile error with
-Werror-implicit-function-declaration
(without -Werror-implicit-function-declaration it's a link error):...
CC arch/frv/kernel/futex.o
/home/bunk/linux/kernel-2.6/linux-2.6.19-rc6-mm2/arch/frv/kernel/futex.c:
In function 'futex_atomic_op_inuser':
/home/bunk/linux/kernel-2.6/linux-2.6.19-rc6-mm2/arch/frv/kernel/futex.c:203:
error: implicit declaration of function 'pagefault_disable'
/home/bunk/linux/kernel-2.6/linux-2.6.19-rc6-mm2/arch/frv/kernel/futex.c:226:
error: implicit declaration of function 'pagefault_enable'
make[2]: *** [arch/frv/kernel/futex.o] Error 1
...Signed-off-by: Adrian Bunk
Acked-by: David Howells
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Replace all uses of kmem_cache_t with struct kmem_cache.
The patch was generated using the following script:
#!/bin/sh
#
# Replace one string by another in all the kernel sources.
#set -e
for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do
quilt add $file
sed -e "1,\$s/$1/$2/g" $file >/tmp/$$
mv /tmp/$$ $file
quilt refresh
doneThe script was run like this
sh replace kmem_cache_t "struct kmem_cache"
Signed-off-by: Christoph Lameter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
SLAB_KERNEL is an alias of GFP_KERNEL.
Signed-off-by: Christoph Lameter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The patch (as824b) makes percpu_free() ignore NULL arguments, as one would
expect for a deallocation routine. (Note that free_percpu is #defined as
percpu_free in include/linux/percpu.h.) A few callers are updated to remove
now-unneeded tests for NULL. A few other callers already seem to assume
that passing a NULL pointer to percpu_free() is okay!The patch also removes an unnecessary NULL check in percpu_depopulate().
Signed-off-by: Alan Stern
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
kunmap_atomic() will call kpte_clear_flush with vaddr/ptep arguments which
don't correspond if the vaddr is just a normal lowmem address (ie, not in
the KMAP area). This patch makes sure that the pte is only cleared if kmap
area was actually used for the mapping.Signed-off-by: Jeremy Fitzhardinge
Signed-off-by: Rusty Russell
Cc: Zachary Amsden
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Introduce pagefault_{disable,enable}() and use these where previously we did
manual preempt increments/decrements to make the pagefault handler do the
atomic thing.Currently they still rely on the increased preempt count, but do not rely on
the disabled preemption, this might go away in the future.(NOTE: the extra barrier() in pagefault_disable might fix some holes on
machines which have too many registers for their own good)[heiko.carstens@de.ibm.com: s390 fix]
Signed-off-by: Peter Zijlstra
Acked-by: Nick Piggin
Cc: Martin Schwidefsky
Signed-off-by: Heiko Carstens
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
In light of the recent pagefault and filemap_copy_from_user work I've gone
through all the arch pagefault handlers to make sure the inc_preempt_count()
'feature' works as expected.Several sections of code (including the new filemap_copy_from_user) rely on
the fact that faults do not take locks under increased preempt count.arch/x86_64 - good
arch/powerpc - good
arch/cris - fixed
arch/i386 - good
arch/parisc - fixed
arch/sh - good
arch/sparc - good
arch/s390 - good
arch/m68k - fixed
arch/ppc - good
arch/alpha - fixed
arch/mips - good
arch/sparc64 - good
arch/ia64 - good
arch/arm - fixed
arch/um - good
arch/avr32 - good
arch/h8300 - NA
arch/m32r - good
arch/v850 - good
arch/frv - fixed
arch/m68knommu - NA
arch/arm26 - fixed
arch/sh64 - fixed
arch/xtensa - goodSigned-off-by: Peter Zijlstra
Acked-by: Nick Piggin
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Following up with the work on shared page table done by Dave McCracken. This
set of patch target shared page table for hugetlb memory only.The shared page table is particular useful in the situation of large number of
independent processes sharing large shared memory segments. In the normal
page case, the amount of memory saved from process' page table is quite
significant. For hugetlb, the saving on page table memory is not the primary
objective (as hugetlb itself already cuts down page table overhead
significantly), instead, the purpose of using shared page table on hugetlb is
to allow faster TLB refill and smaller cache pollution upon TLB miss.With PT sharing, pte entries are shared among hundreds of processes, the cache
consumption used by all the page table is smaller and in return, application
gets much higher cache hit ratio. One other effect is that cache hit ratio
with hardware page walker hitting on pte in cache will be higher and this
helps to reduce tlb miss latency. These two effects contribute to higher
application performance.Signed-off-by: Ken Chen
Acked-by: Hugh Dickins
Cc: Dave McCracken
Cc: William Lee Irwin III
Cc: "Luck, Tony"
Cc: Paul Mackerras
Cc: Benjamin Herrenschmidt
Cc: David Gibson
Cc: Adam Litke
Cc: Paul Mundt
Cc: "David S. Miller"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
arch/um/drivers/chan_kern.c:643: error: conflicting types for 'chan_interrupt'
arch/um/include/chan_kern.h:31: error: previous declaration of 'chan_interrupt'Cc: David Howells
Cc: Jeff Dike
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
07 Dec, 2006
9 commits
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* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
[MIPS] Import updates from i386's i8259.c
[MIPS] *-berr: Header inclusions for DEC bus error handlers
[MIPS] Compile __do_IRQ() when really needed
[MIPS] genirq: use name instead of typename
[MIPS] Do not use handle_level_irq for ioasic_dma_irq_type.
[MIPS] pte_offset(dir,addr): parenthesis fix -
The recent change to convert the is_enabled flag in the PCI device to an
atomic count broke the IA64 compilation.As pcibios_disable_device is only ever called if the reference count
is zero, convert the if to a BUG_ON.Signed-off-by: Peter Chubb
Signed-off-by: Tony Luck -
Import many updates from i386's i8259.c, especially genirq transitions.
Signed-off-by: Atsushi Nemoto
Signed-off-by: Ralf Baechle -
A fixup to add missing header inclusions for bus error handlers for
DECstation system after the recent switch to get_irq_regs().Signed-off-by: Maciej W. Rozycki
Signed-off-by: Ralf Baechle -
__do_IRQ() is needed only by irq handlers that can't use
default handlers defined in kernel/irq/chip.c.For others platforms there's no need to compile this function
since it won't be used. For those platforms this patch defines
GENERIC_HARDIRQS_NO__DO_IRQ symbol which is used exactly for
this purpose.Futhermore for platforms which do not use __do_IRQ(), end()
method which is part of the 'irq_chip' structure is not used.
This patch simply removes this method in this case.Signed-off-by: Franck Bui-Huu
Signed-off-by: Ralf Baechle -
The "typename" field was obsoleted by the "name" field.
Signed-off-by: Atsushi Nemoto
Signed-off-by: Ralf Baechle -
Signed-off-by: Atsushi Nemoto
Signed-off-by: Ralf Baechle -
* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6: (43 commits)
sh: sh775x/titan fixes for irq header changes.
sh: update r7780rp defconfig.
sh: compile fixes for header cleanup.
sh: Fixup pte_mkhuge() build failure.
sh: set KBUILD_IMAGE to something sensible.
sh: show held locks in stack trace with lockdep.
sh: platform_pata support for R7780RP
sh: stacktrace/lockdep/irqflags tracing support.
sh: Fixup movli.l/movco.l atomic ops for gcc4.
sh: dyntick infrastructure.
sh: Clock framework tidying.
sh: Turn off IRQs around get_timer_offset() calls.
sh: Get the PGD right in oops case with 64-bit PTEs.
sh: Fix store queue bitmap end.
sh: More flexible + SH7780 earlyprintk SCIF support.
sh: Fixup various PAGE_SIZE == 4096 assumptions.
sh: Fixup 4K irq stacks.
sh: dma-api channel capability extensions.
sh: Drop name overload in dma-sh.
sh: Make dma-isa depend on ISA_DMA_API.
... -
* git://git.infradead.org/users/dhowells/workq-2.6:
Actually update the fixed up compile failures.
WorkQueue: Fix up arch-specific work items where possible
WorkStruct: make allyesconfig
WorkStruct: Pass the work_struct pointer instead of context data
WorkStruct: Merge the pending bit into the wq_data pointer
WorkStruct: Typedef the work function prototype
WorkStruct: Separate delayable and non-delayable events.
06 Dec, 2006
11 commits
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Adds support for RTCs (through genrtc) for M68KNOMMU.
Board-specific code will have to link the appropriate RTC driver to the
mach_hwclk callback, at minimum.This patch switches the 68360 code over to using rtc_time.
Signed-off-by: Gavin Lambert
Signed-off-by: Greg Ungerer
Signed-off-by: Linus Torvalds -
The 523x timer TRR register is a full 32bits, the older register (on
other ColdFire parts) was only 16 bits. Use the right type of
__raw_read when accessing it.Problem found by Yaroslav Vinogradov
Signed-off-by: Greg Ungerer
Signed-off-by: Linus Torvalds -
The following moves the creation of IPR interupts into setup-7750.c
and updates a few other things to make it all work after the "Drop
CPU subtype IRQ headers" commit. It boots and runs fine on my titan
board.- adds an ipr_idx to the ipr_data and uses a function in the subtype
code to calculate the address of the IPR registers- adds a function to enable individual interrupt mode for externals
in the subtype code and calls that from the titan board code
instead of doing it directly.- I changed the shift in the ipr_data to be the actual # of bits to
shift, instead of the numnber / 4 - made it easier to match with
the manual.Signed-off-by: Jamie Lenehan
Signed-off-by: Paul Mundt -
Signed-off-by: Paul Mundt
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Since some header inclusion paths were cleaned up, compilation
broke. Add in the headers we need directly to build again.Signed-off-by: Paul Mundt
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This was missing for sh too, wire it up..
Signed-off-by: Paul Mundt
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Follows the same change as other architectures..
Signed-off-by: Paul Mundt
-
This adds a platform device for the directly connected
CF interface on R7780RP boards, for use with the
pata_platform libata driver.Signed-off-by: Paul Mundt
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Wire up all of the essentials for lockdep..
Signed-off-by: Paul Mundt
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This adds basic NO_IDLE_HZ support to the SH timer API so timers
are able to wire it up. Taken from the ARM version, as it fit in
to our API with very few changes needed.Signed-off-by: Paul Mundt
-
This syncs up the SH clock framework with the linux/clk.h API,
for which there were only some minor changes required, namely
the clk_get() dev_id and subsequent callsites.Signed-off-by: Paul Mundt
