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The mips74k programmers guide notes that reads can be re-ordered, even uncached ones, so we need an explicit SYNC between them. Yes, this is a case of a driver author actively doing a bus barrier operation. This ends up being necessary when the mips74k core is run in write-back mode rather than write-through mode. That's coming in an upcoming commit. Tested: * mips74k, QCA9558 SoC (AP135 reference board), arge<->arge interface routing traffic tests. |
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adm5120 | ||
alchemy | ||
atheros | ||
beri | ||
cavium | ||
conf | ||
gxemul | ||
idt | ||
include | ||
malta | ||
mips | ||
nlm | ||
rmi | ||
rt305x | ||
sentry5 | ||
sibyte |