Hi all,
I found that the cache policy in after ARMv6 is always set as writeback
mode in mmu.c.
static int __init early_cachepolicy(char *p)
{
...
if (cpu_architecture() >= CPU_ARCH_ARMv6) {
printk(KERN_WARNING "Only cachepolicy=writeback supported on ARMv6
and later\n");
cachepolicy = CPOLICY_WRITEBACK;
}
...
}
Does anyone know why and provide some documents or links for that?
Thanks so much!
Cheers,
Jacky
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