| 56d205cc5c0a3032a605121d4253e111193bf923 |
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03-Aug-2011 |
David S. Miller <davem@davemloft.net> |
sparc: Use popc when possible for ffs/__ffs/ffz.
Signed-off-by: David S. Miller <davem@davemloft.net>
/arch/sparc/lib/Makefile
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| ef7c4d4675d2a9206f913f26ca1a5cd41bff9d41 |
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29-Jul-2011 |
David S. Miller <davem@davemloft.net> |
sparc: Use popc if possible for hweight routines.
Just like powerpc, we code patch at boot time.
Signed-off-by: David S. Miller <davem@davemloft.net>
/arch/sparc/lib/Makefile
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| e95ade083939dcb4b0c51c1a2c8504ea9ef3d6ef |
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02-Aug-2011 |
David S. Miller <davem@davemloft.net> |
sparc: Minor tweaks to Niagara page copy/clear.
Don't use floating point on Niagara2, use the traditional
plain Niagara code instead.
Unroll Niagara loops to 128 bytes for copy, and 256 bytes
for clear.
Signed-off-by: David S. Miller <davem@davemloft.net>
/arch/sparc/lib/Makefile
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| 1827237065815373421c087c84d2a779d61c13d3 |
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21-Apr-2011 |
Daniel Hellstrom <daniel@gaisler.com> |
sparc32: removed unused code, implemented by generic code
Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
/arch/sparc/lib/Makefile
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| 9b3bb86acabe0c05923cea1ed3b0bee9439fef4b |
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18-Aug-2010 |
David S. Miller <davem@davemloft.net> |
sparc64: Make rwsems 64-bit.
Basically tip-off the powerpc code, use a 64-bit type and atomic64_t
interfaces for the implementation.
This gets us off of the by-hand asm code I wrote, which frankly I
think probably ruins I-cache hit rates.
The idea was the keep the call chains less deep, but anything taking
the rw-semaphores probably is also calling other stuff and therefore
already has allocated a stack-frame. So no real stack frame savings
ever.
Ben H. has posted patches to make powerpc use 64-bit too and with some
abstractions we can probably use a shared header file somewhere.
With suggestions from Sam Ravnborg.
Signed-off-by: David S. Miller <davem@davemloft.net>
/arch/sparc/lib/Makefile
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| fb34035e7b4bb3edc7c2dc0683cfe21f57a9574d |
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11-Dec-2009 |
David S. Miller <davem@davemloft.net> |
sparc: Use __builtin_object_size() to validate the buffer size for copy_from_user()
This mirrors x86 commit 9f0cf4adb6aa0bfccf675c938124e68f7f06349d
(x86: Use __builtin_object_size() to validate the buffer size for copy_from_user())
Signed-off-by: David S. Miller <davem@davemloft.net>
/arch/sparc/lib/Makefile
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| 62dfcd336c79c49f9aeb0acc99cf9a1832102dd5 |
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18-Jan-2009 |
Sam Ravnborg <sam@ravnborg.org> |
sparc64: fix modpost failure
Previously PeeCeeI.o was a library but it
was always pulled in due to insw and friends being exported
(at least for a modular kernel).
But this resulted in modpost failures if there where no in-kernel
users because then insw & friends were not linked in.
Fix this by including PeeCeeI.o in the kernel unconditionally.
The only drawback for this solution is that a nonmodular kernel
will always include insw & friends no matter if they are in use or not.
Reported-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
/arch/sparc/lib/Makefile
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| 45536ffc8dcb7798ff4818f54391547e5af19648 |
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09-Jan-2009 |
Sam Ravnborg <sam@ravnborg.org> |
sparc: Create a new file lib/ksyms.c and add export of all symbols defined in assembler in lib/ to this file.
Remove the duplicate entries from kernel/sparc_ksyms_*.c
The rationale behind this is that the EXPORT_SYMBOL() should be close to
their definition and we cannot add designate a symbol to be exported in
assembler so at least put it in a file in the same directory.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Additions by Julian Calaby:
* Rebased over sparc-2.6.git HEAD
Signed-off-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
/arch/sparc/lib/Makefile
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| 18cdae68e7bb24f33883e58f366cde38ea89ba17 |
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09-Dec-2008 |
David S. Miller <davem@davemloft.net> |
sparc: Commonize memcmp assembler.
Signed-off-by: David S. Miller <davem@davemloft.net>
/arch/sparc/lib/Makefile
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| ae984d72e0632782dd98c3fcf469b9045ad0d449 |
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09-Dec-2008 |
David S. Miller <davem@davemloft.net> |
sparc: Unify strlen assembler.
Use the new asm/asm.h header to help commonize the
strlen assembler between 32-bit and 64-bit
While we're here, use proper linux/linkage.h macros
instead of by-hand stuff.
Signed-off-by: David S. Miller <davem@davemloft.net>
/arch/sparc/lib/Makefile
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| 478b8fecda511942404ac232897a718cecd13e48 |
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03-Dec-2008 |
Sam Ravnborg <sam@ravnborg.org> |
sparc,sparc64: unify lib/
o Renamed files in sparc64 to <name>_64.S when identical
to sparc32 files.
o iomap.c were equal for sparc32 and sparc64
o adjusted sparc/Makefile now we have only one lib/
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
/arch/sparc/lib/Makefile
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| 18269c0fd4db9bec2668f895f21d742486ccb90f |
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03-Dec-2008 |
Sam Ravnborg <sam@ravnborg.org> |
sparc: prepare lib/ for unification
Identical named files renamed to <name>_32.S
Refactored Makefile to prepare for unification.
Linking order was altered slightly - but this is a lib.a file so
it should not matter.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
/arch/sparc/lib/Makefile
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| 88278ca27a43ae503572b52ea2c171fbf45db5a2 |
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20-May-2008 |
Adrian Bunk <bunk@kernel.org> |
sparc: remove CVS keywords
This patch removes the CVS keywords that weren't updated for a long time
from comments.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
/arch/sparc/lib/Makefile
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| 6cc0735d0dbf6a0e5f802f47d51e1e463466955c |
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26-Aug-2007 |
David S. Miller <davem@sunset.davemloft.net> |
[SPARC32]: Add __cmpdi2() libcall implementation ala. MIPS.
Device mapper generates calls to this with recent versions
of gcc.
Signed-off-by: David S. Miller <davem@davemloft.net>
/arch/sparc/lib/Makefile
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| 8a8b836b91aa170a383f2f360b73d3d23160d9d7 |
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18-Dec-2006 |
David S. Miller <davem@sunset.davemloft.net> |
[SPARC]: Make bitops use same spinlocks as atomics.
Recent workqueue changes basically make this a formal requirement.
Also, move atomic32.o from lib-y to obj-y since it exports symbols
to modules.
Signed-off-by: David S. Miller <davem@davemloft.net>
/arch/sparc/lib/Makefile
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| 749805dc10e955b0170573061f9522a6a21cbae0 |
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26-Jun-2006 |
David S. Miller <davem@sunset.davemloft.net> |
[SPARC]: Add iomap interfaces.
Signed-off-by: David S. Miller <davem@davemloft.net>
/arch/sparc/lib/Makefile
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| fb1c8f93d869b34cacb8b8932e2b83d96a19d720 |
|
10-Sep-2005 |
Ingo Molnar <mingo@elte.hu> |
[PATCH] spinlock consolidation
This patch (written by me and also containing many suggestions of Arjan van
de Ven) does a major cleanup of the spinlock code. It does the following
things:
- consolidates and enhances the spinlock/rwlock debugging code
- simplifies the asm/spinlock.h files
- encapsulates the raw spinlock type and moves generic spinlock
features (such as ->break_lock) into the generic code.
- cleans up the spinlock code hierarchy to get rid of the spaghetti.
Most notably there's now only a single variant of the debugging code,
located in lib/spinlock_debug.c. (previously we had one SMP debugging
variant per architecture, plus a separate generic one for UP builds)
Also, i've enhanced the rwlock debugging facility, it will now track
write-owners. There is new spinlock-owner/CPU-tracking on SMP builds too.
All locks have lockup detection now, which will work for both soft and hard
spin/rwlock lockups.
The arch-level include files now only contain the minimally necessary
subset of the spinlock code - all the rest that can be generalized now
lives in the generic headers:
include/asm-i386/spinlock_types.h | 16
include/asm-x86_64/spinlock_types.h | 16
I have also split up the various spinlock variants into separate files,
making it easier to see which does what. The new layout is:
SMP | UP
----------------------------|-----------------------------------
asm/spinlock_types_smp.h | linux/spinlock_types_up.h
linux/spinlock_types.h | linux/spinlock_types.h
asm/spinlock_smp.h | linux/spinlock_up.h
linux/spinlock_api_smp.h | linux/spinlock_api_up.h
linux/spinlock.h | linux/spinlock.h
/*
* here's the role of the various spinlock/rwlock related include files:
*
* on SMP builds:
*
* asm/spinlock_types.h: contains the raw_spinlock_t/raw_rwlock_t and the
* initializers
*
* linux/spinlock_types.h:
* defines the generic type and initializers
*
* asm/spinlock.h: contains the __raw_spin_*()/etc. lowlevel
* implementations, mostly inline assembly code
*
* (also included on UP-debug builds:)
*
* linux/spinlock_api_smp.h:
* contains the prototypes for the _spin_*() APIs.
*
* linux/spinlock.h: builds the final spin_*() APIs.
*
* on UP builds:
*
* linux/spinlock_type_up.h:
* contains the generic, simplified UP spinlock type.
* (which is an empty structure on non-debug builds)
*
* linux/spinlock_types.h:
* defines the generic type and initializers
*
* linux/spinlock_up.h:
* contains the __raw_spin_*()/etc. version of UP
* builds. (which are NOPs on non-debug, non-preempt
* builds)
*
* (included on UP-non-debug builds:)
*
* linux/spinlock_api_up.h:
* builds the _spin_*() APIs.
*
* linux/spinlock.h: builds the final spin_*() APIs.
*/
All SMP and UP architectures are converted by this patch.
arm, i386, ia64, ppc, ppc64, s390/s390x, x64 was build-tested via
crosscompilers. m32r, mips, sh, sparc, have not been tested yet, but should
be mostly fine.
From: Grant Grundler <grundler@parisc-linux.org>
Booted and lightly tested on a500-44 (64-bit, SMP kernel, dual CPU).
Builds 32-bit SMP kernel (not booted or tested). I did not try to build
non-SMP kernels. That should be trivial to fix up later if necessary.
I converted bit ops atomic_hash lock to raw_spinlock_t. Doing so avoids
some ugly nesting of linux/*.h and asm/*.h files. Those particular locks
are well tested and contained entirely inside arch specific code. I do NOT
expect any new issues to arise with them.
If someone does ever need to use debug/metrics with them, then they will
need to unravel this hairball between spinlocks, atomic ops, and bit ops
that exist only because parisc has exactly one atomic instruction: LDCW
(load and clear word).
From: "Luck, Tony" <tony.luck@intel.com>
ia64 fix
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjanv@infradead.org>
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
Cc: Matthew Wilcox <willy@debian.org>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Mikael Pettersson <mikpe@csd.uu.se>
Signed-off-by: Benoit Boissinot <benoit.boissinot@ens-lyon.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
/arch/sparc/lib/Makefile
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| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
|
17-Apr-2005 |
Linus Torvalds <torvalds@ppc970.osdl.org> |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
/arch/sparc/lib/Makefile
|