| 4f3316c2b5fe2062c26c9b66915b5a5c80c60a5c |
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26-Mar-2014 |
Peter Zijlstra <peterz@infradead.org> |
locking,arch,sparc: Fold atomic_ops
Many of the atomic op implementations are the same except for one
instruction; fold the lot into a few CPP macros and reduce LoC.
This also prepares for easy addition of new ops.
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Kirill Tkhai <tkhai@yandex.ru>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: sparclinux@vger.kernel.org
Link: http://lkml.kernel.org/r/20140508135852.825281379@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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| 61d9b9355b0d427bd1e732bd54628ff9103e496f |
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12-Aug-2013 |
Kirill Tkhai <tkhai@yandex.ru> |
sparc64: Remove RWSEM export leftovers
The functions
__down_read
__down_read_trylock
__down_write
__down_write_trylock
__up_read
__up_write
__downgrade_write
are implemented inline, so remove corresponding EXPORT_SYMBOLs
(They lead to compile errors on RT kernel).
Signed-off-by: Kirill Tkhai <tkhai@yandex.ru>
CC: David Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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| 193d2aadc0ff5c687f6f0d5ef1d38c86ab511a14 |
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10-Nov-2012 |
David S. Miller <davem@davemloft.net> |
sparc: Support atomic64_dec_if_positive properly.
Sparc32 already supported it, as a consequence of using the
generic atomic64 implementation. And the sparc64 implementation
is rather trivial.
This allows us to set ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE for all
of sparc, and avoid the annoying warning from lib/atomic64_test.c
Signed-off-by: David S. Miller <davem@davemloft.net>
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| 4ff28d4ca93b182b8e181b1e1b1d03fd09fdaeb4 |
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20-Aug-2012 |
David S. Miller <davem@davemloft.net> |
sparc64: Add SHA1 driver making use of the 'sha1' instruction.
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
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| 2c66f623631709aa5f2e4c14c7e089682e7394a3 |
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26-May-2012 |
David Miller <davem@davemloft.net> |
sparc: use the new generic strnlen_user() function
This throws away the sparc-specific functions in favor of the generic
optimized version.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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| ff06dffbc8abfc60d6a0332f058f1d1bb01abb31 |
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23-May-2012 |
David S. Miller <davem@davemloft.net> |
sparc: Add full proper error handling to strncpy_from_user().
Linus removed the end-of-address-space hackery from
fs/namei.c:do_getname() so we really have to validate these edge
conditions and cannot cheat any more (as x86 used to as well).
Move to a common C implementation like x86 did. And if both
src and dst are sufficiently aligned we'll do word at a time
copies and checks as well.
Signed-off-by: David S. Miller <davem@davemloft.net>
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| 1b35a57b1c1781f0fc8fc554f732b3a5408c5244 |
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15-May-2012 |
David S. Miller <davem@davemloft.net> |
sparc32: Kill off software 32-bit multiply/divide routines.
For the explicit calls to .udiv/.umul in assembler, I made a
mechanical (read as: safe) transformation. I didn't attempt
to make any simplifications.
In particular, __ndelay and __udelay can be simplified significantly.
Some of the %y reads are unnecessary and these routines have no need
any longer for allocating a register window, they can be leaf
functions.
Signed-off-by: David S. Miller <davem@davemloft.net>
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| b55e81b9f8cf0256bcfc548360aef642630c2919 |
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12-May-2012 |
David S. Miller <davem@davemloft.net> |
sparc32: Remove inline strncmp "optimization" for constant counts.
Let the compiler do stuff like this.
Signed-off-by: David S. Miller <davem@davemloft.net>
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| 348738afe530cc3a7306bbd3d1ccd322f9638f32 |
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26-Dec-2011 |
Sam Ravnborg <sam@ravnborg.org> |
sparc32: drop unused atomic24 support
atomic24 support was used to semaphores in the past - but is no longer used.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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| 4d14a459857bd151ecbd14bcd37b4628da00792b |
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11-Dec-2009 |
David S. Miller <davem@davemloft.net> |
sparc: Stop trying to be so fancy and use __builtin_{memcpy,memset}()
This mirrors commit ff60fab71bb3b4fdbf8caf57ff3739ffd0887396
(x86: Use __builtin_memset and __builtin_memcpy for memset/memcpy)
Signed-off-by: David S. Miller <davem@davemloft.net>
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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>
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