On Sunday 13 October 2013 02:42 PM, Tejun Heo wrote: > On Sun, Oct 13, 2013 at 07:00:59PM +0100, Russell King - ARM Linux wrote: >> On Sun, Oct 13, 2013 at 01:56:48PM -0400, Tejun Heo wrote: >>> Hello, >>> >>> On Sat, Oct 12, 2013 at 05:58:49PM -0400, Santosh Shilimkar wrote: >>>> Introduce memblock early memory allocation APIs which allow to support >>>> LPAE extension on 32 bits archs. More over, this is the next step >>> >>> LPAE isn't something people outside arm circle would understand. >>> Let's stick to highmem. >> >> LPAE != highmem. Two totally different things, unless you believe >> system memory always starts at physical address zero, which is very >> far from the case on the majority of ARM platforms. >> thanks Russell for clarification. >> So replacing LPAE with "highmem" is pure misrepresentation and is >> inaccurate. PAE might be a better term, and is also the x86 term >> for this. > > Ah, right, forgot about the base address. Let's please spell out the > requirements then. Briefly explaining both aspects (non-zero base > addr & highmem) and why the existing bootmem based interfaced can't > serve them would be helpful to later readers. > OK. Will try to describe bit more in the next version.Cover letter had some of the information on the requirement which I will also mention in the patch commit in next version. Regards, Santosh -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>