powerpc/8xx: Define a MODULE area below kernel text
On the 8xx, TASK_SIZE is 0x80000000. The space between TASK_SIZE
and PAGE_OFFSET is not used.
In order to benefit from the powerpc specific module_alloc()
function which allocate modules with 32 Mbytes from
end of kernel text, define MODULES_VADDR and MODULES_END.
Set a 256Mb area just below PAGE_OFFSET, like book3s/32.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/a225606d5b3a8bc53fe612ad52c855c60b0a0a58.1617283827.git.christophe.leroy@csgroup.eu
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