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authorStefan Kristiansson <stefan.kristiansson@saunalahti.fi>2014-05-12 14:08:26 +0300
committerStafford Horne <shorne@gmail.com>2017-02-25 04:12:38 +0900
commit0e9f9fd20ce931cc2cf0519c56ae33fc74d656ad (patch)
tree502f8f067c7cc7ffcdd9042d404dc92e62b78f3c /arch/openrisc/include/asm/Kbuild
parent63104c06a9eddf53f88f6d16196bb036c62967b2 (diff)
openrisc: add atomic bitops
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>
Diffstat (limited to 'arch/openrisc/include/asm/Kbuild')
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