Re: Memory Started not at 0x00000000

NIIBE Yutaka (gniibe@chroot.org)
Wed, 9 Feb 2000 09:16:04 +0900

Thank you for your suggestions. I did change SuperH implementation so
that it uses init_bootmem_node and free_area_init_core. Well, it
works.

But I'm not sure if it's good use or not. At least, it seems that
free_area_init_core is not intended to be used, since it is not
defined in header file.

Things are going like this:

setu_arch
call
init_bootmem_node

paging_init
get info. from:
NODE_DATA(0)->bdata->node_boot_start
NODE_DATA(0)->bdata->node_low_pfn
then call
free_area_init_core (Should I use free_area_init_node instead?)

mem_init
get info. from:
NODE_DATA(0)->bdata->node_boot_start
NODE_DATA(0)->bdata->node_low_pfn

I think that it would be better if we define macros for START_PFN and
MAX_LOW_PFN, then we could eliminate the variable max_low_pfn even
in the i386 implementation.

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