-/*
- * Write any modified data cache blocks out to memory
- * and invalidate the corresponding instruction cache blocks.
- *
- * flush_dcache_range(unsigned long start, unsigned long stop)
- */
-_GLOBAL(flush_dcache_range)
- li r5,CACHE_LINE_SIZE-1
- andc r3,r3,r5
- subf r4,r3,r4
- add r4,r4,r5
- srwi. r4,r4,LG_CACHE_LINE_SIZE
- beqlr
- mtctr r4
-
- sync
-1: dcbf 0,r3
- addi r3,r3,CACHE_LINE_SIZE
- bdnz 1b
- sync /* wait for dcbf's to get to ram */
- blr
-
-/*
- * Like above, but invalidate the D-cache. This is used by the 8xx
- * to invalidate the cache so the PPC core doesn't get stale data
- * from the CPM (no cache snooping here :-).
- *
- * invalidate_dcache_range(unsigned long start, unsigned long stop)
- */
-_GLOBAL(invalidate_dcache_range)
- li r5,CACHE_LINE_SIZE-1
- andc r3,r3,r5
- subf r4,r3,r4
- add r4,r4,r5
- srwi. r4,r4,LG_CACHE_LINE_SIZE
- beqlr
- mtctr r4
-
- sync
-1: dcbi 0,r3
- addi r3,r3,CACHE_LINE_SIZE
- bdnz 1b
- sync /* wait for dcbi's to get to ram */
- blr
-