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authorPaul Burton <paul.burton@mips.com>2019-10-01 21:53:42 +0000
committerPaul Burton <paul.burton@mips.com>2019-10-07 09:43:09 -0700
commit12dbb04f2ac1fcbef0d6463abb3071ce8d8fe45f (patch)
tree09b1a1b5d7d35db3a5a20cec5a5cab111a6fca92 /tools/perf/scripts/python/export-to-postgresql.py
parentae4cd0b1a4756344cb99c0004d156b585cf9e907 (diff)
MIPS: genex: Add Loongson3 LL/SC workaround to ejtag_debug_handler
In ejtag_debug_handler we use LL & SC instructions to acquire & release an open-coded spinlock. For Loongson3 systems affected by LL/SC errata this requires that we insert a sync instruction prior to the LL in order to ensure correct behavior of the LL/SC loop. Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: linux-mips@vger.kernel.org Cc: Huacai Chen <chenhc@lemote.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: linux-kernel@vger.kernel.org
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
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