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arm64: add comment about data cache flushing

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This commit is contained in:
Bernhard Urban 2016-09-10 08:05:16 +02:00
parent fff8221b63
commit 976da3707a
1 changed files with 2 additions and 0 deletions
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Source/Core/Common/Arm64Emitter.cpp
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@ -346,6 +346,8 @@ void ARM64XEmitter::FlushIcacheSection(u8* start, u8* end)
addr = (u64)start & ~(u64)(dsize - 1);
for (; addr < (u64)end; addr += dsize)
// use "civac" instead of "cvau", as this is the suggested workaround for
// Cortex-A53 errata 819472, 826319, 827319 and 824069.
__asm__ volatile("dc civac, %0" : : "r"(addr) : "memory");
__asm__ volatile("dsb ish" : : : "memory");