Associativity=0 means that only one CMO is needed for all ways.
It could also mean that the cache is 1-way, but this is less likely.
Currently Associativity=0 causes us to hang in the while loop in
decode_cache_reg. Fix it by skipping the loop in this case. We can let
way_shift be set to the arbitrary value of 0 because in the case where
Associativity=0 we only ever shift 0 by it before ORing it into the
CMO operand.
Change-Id: I7c1de68d33f6b3ed627cbb1e2401d43185e4c1e3
Signed-off-by: Peter Collingbourne <pcc@google.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7916
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
size.index = (cache_reg >> 13) & 0x7fff;
size.way = ((cache_reg >> 3) & 0x3ff);
- while (((size.way << i) & 0x80000000) == 0)
- i++;
+ if (size.way != 0)
+ while (((size.way << i) & 0x80000000) == 0)
+ i++;
size.way_shift = i;
return size;
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