kernel/arch/openrisc/include/asm/bitops.h, branch linux-5.1.yHosts the 0x221E linux distro kernel.https://universe.0xinfinity.dev/distro/kernel/atom?h=linux-5.1.y2017-02-24T19:12:38Zopenrisc: add atomic bitops2017-02-24T19:12:38ZStefan Kristianssonstefan.kristiansson@saunalahti.fi2014-05-12T11:08:26Zurn:sha1:0e9f9fd20ce931cc2cf0519c56ae33fc74d656ad
This utilize the load-link/store-conditional l.lwa and l.swa
instructions to implement the atomic bitops.
When those instructions are not available emulation is provided.
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
[shorne@gmail.com: remove OPENRISC_HAVE_INST_LWA_SWA config suggesed by
Alan Cox https://lkml.org/lkml/2014/7/23/666, implement
test_and_change_bit]
Signed-off-by: Stafford Horne <shorne@gmail.com>
arch,openrisc: Convert smp_mb__*()2014-04-18T12:20:40ZPeter Zijlstrapeterz@infradead.org2014-03-13T18:00:36Zurn:sha1:0f5c6f9e18e14b4ebd83dd08e81ca8143d43de28
Openrisc fully relies on asm-generic/barrier.h and therefore its
smp_mb() is barrier().
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/n/tip-sxgxgqag9tond4kji07d22oh@git.kernel.org
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Cc: linux@lists.openrisc.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Add bitops include needed for ext2 filesystem2013-02-17T07:46:21ZSebastian Mackesebastian@macke.de2013-02-15T06:54:41Zurn:sha1:b4f5b53603468ef229d16350639e293f12128b62
Signed-off-by: Jonas Bonn <jonas@southpole.se>
OpenRISC: Headers2011-07-22T16:46:39ZJonas Bonnjonas@southpole.se2011-06-04T19:43:49Zurn:sha1:58e0166a4772aaeb10c9b0f6d59f19099d2047df
Signed-off-by: Jonas Bonn <jonas@southpole.se>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>