mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-06 12:36:39 +07:00
b0d8003ef4
Mostly complete rewrite of the FRV atomic implementation, instead of using assembly files, use inline assembler. The out-of-line CONFIG option makes a bit of a mess of things, but a little CPP trickery gets that done too. FRV already had the atomic logic ops but under a non standard name, the reimplementation provides the generic names and provides the intermediate form required for the bitops implementation. The slightly inconsistent __atomic32_fetch_##op naming is because __atomic_fetch_##op conlicts with GCC builtin functions. The 64bit atomic ops use the inline assembly %Ln construct to access the low word register (r+1), afaik this construct was not previously used in the kernel and is completely undocumented, but I found it in the FRV GCC code and it seems to work. FRV had a non-standard definition of atomic_{clear,set}_mask() which would work types other than atomic_t, the one user relying on that (arch/frv/kernel/dma.c) got converted to use the new intermediate form. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
||
---|---|---|
.. | ||
__ashldi3.S | ||
__ashrdi3.S | ||
__lshrdi3.S | ||
__muldi3.S | ||
__negdi2.S | ||
__ucmpdi2.S | ||
atomic64-ops.S | ||
atomic-lib.c | ||
atomic-ops.S | ||
cache.S | ||
checksum.c | ||
insl_ns.S | ||
insl_sw.S | ||
Makefile | ||
memcpy.S | ||
memset.S | ||
outsl_ns.S | ||
outsl_sw.S |