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authorDaniel Cederman <cederman@gaisler.com>2014-07-11 16:09:41 +0200
committerDaniel Hellstrom <daniel@gaisler.com>2014-08-22 13:10:59 +0200
commitbba83e5191eaed493bd619a5458ac5f22501f59b (patch)
tree84611778cf7105ed7a8c78d015bd78a95f98a874 /c/src
parentbsp/sparc: Flush icache before first time enabling interrupts (diff)
downloadrtems-bba83e5191eaed493bd619a5458ac5f22501f59b.tar.bz2
score/sparc: Add comment on icache flush after trap table update
Changes to the trap table might be missed by other cores. If the system state is up, the other cores can be notified using SMP messages that they need to flush their icache. If the up state has not been reached there is no need to notify other cores. They will do an automatic flush of the icache just after entering the up state, but before enabling interrupts. Cache invalidation is required for both single and multiprocessor systems.
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