__cmpxchg_u64 and llsc/LLSC_WAR

From: Samuel Thibault
Date: Fri Apr 14 2006 - 04:29:13 EST


Hi,

In linux/include/asm-mips/system.h:__cmpxchg_u64(), one can read

if (cpu_has_llsc) {
asm(stuff with beqzl);
} else if (cpu_has_llsc) {
asm(stuff with beqz);
} else {
C code;
}

There's no test for "LLSC_WAR", is that on purpose? (i.e.. is beqzl
always needed rather than beqz?)

Regards,
Samuel
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