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powerpc/32: use memset() instead of memset_io() to zero BSS 

Since commit 400c47d81c ("powerpc32: memset: only use dcbz once cache is
enabled"), memset() can be used before activation of the cache,
so no need to use memset_io() for zeroing the BSS.

Acked-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
hifive-unleashed-5.2
Christophe Leroy 2019-04-26 16:23:30 +00:00 committed by Michael Ellerman
parent adcf59187e
commit 7934cea7f0
1 changed files with 2 additions and 2 deletions
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4
arch/powerpc/kernel/early_32.c
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@ -21,8 +21,8 @@ notrace unsigned long __init early_init(unsigned long dt_ptr)
{
unsigned long offset = reloc_offset();
/* First zero the BSS -- use memset_io, some platforms don't have caches on yet */
memset_io((void __iomem *)PTRRELOC(&__bss_start), 0, __bss_stop - __bss_start);
/* First zero the BSS */
memset(PTRRELOC(&__bss_start), 0, __bss_stop - __bss_start);
/*
* Identify the CPU type and fix up code sections