if (cache_is_vipt_aliasing()) {
/*
* Interactions between kmap and other mappings
* make highmem support with aliasing VIPT caches
* rather difficult.
*/
reason = "with VIPT aliasing cache";
}
if (reason) {
printk(KERN_CRIT "HIGHMEM is not supported %s, ignoring high memory\n",
reason);
while (j > 0 && meminfo.bank[j - 1].highmem)
j--;
}
}
#endif
meminfo.nr_banks = j;
memblock_set_current_limit(lowmem_limit);
}
这里其中vmalloc_vin 定义为static void * __initdata vmalloc_min = (void *)(VMALLOC_END - SZ_128M);
而vmalloc_end在2440上定义为arch/arm/mach-s3c2410/include/mach/vmalloc.h
#define VMALLOC_END 0xF6000000UL
