On Tue, 2018-10-09 at 15:24 +0200, Christoph Hellwig wrote:
> * Find the least restrictive zone that is entirely below the
> @@ -324,11 +305,14 @@ void __init paging_init(void)
> printk(KERN_DEBUG "Memory hole size: %ldMB\n",
>(long int)((top_of_ram - total_ram) >> 20));
>
Powerpc has somewhat odd usage where ZONE_DMA is used for all memory on
common 64-bit configfs, and ZONE_DMA32 is used for 31-bit schemes.
Move to a scheme closer to what other architectures use (and I dare to
say the intent of the system):
- ZONE_DMA: optionally for memory < 31-bit
- ZONE_NORM
