powerpc32: small optimisation in flush_icache_range()
Inlining of _dcache_range() functions has shown that the compiler does the same thing a bit better with one insn less Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Scott Wood <oss@buserror.net>
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@ -348,10 +348,9 @@ BEGIN_FTR_SECTION
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PURGE_PREFETCHED_INS
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blr /* for 601, do nothing */
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END_FTR_SECTION_IFSET(CPU_FTR_COHERENT_ICACHE)
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li r5,L1_CACHE_BYTES-1
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andc r3,r3,r5
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rlwinm r3,r3,0,0,31 - L1_CACHE_SHIFT
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subf r4,r3,r4
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add r4,r4,r5
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addi r4,r4,L1_CACHE_BYTES - 1
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srwi. r4,r4,L1_CACHE_SHIFT
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beqlr
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mtctr r4
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