alpha: switch to NO_BOOTMEM
authorMike Rapoport <rppt@linux.vnet.ibm.com>
Fri, 26 Oct 2018 22:05:10 +0000 (15:05 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 26 Oct 2018 23:25:20 +0000 (16:25 -0700)
commit6471f52af786fc9cb82bf1af9d086fb09c62f99b
treeb70ab067e61c24c63b3788eb36d2c2994f291f8c
parente92d39cdb120219a16502ca646d407d61cd7adf4
alpha: switch to NO_BOOTMEM

Replace bootmem allocator with memblock and enable use of NO_BOOTMEM like
on most other architectures.

Alpha gets the description of the physical memory from the firmware as an
array of memory clusters.  Each cluster that is not reserved by the
firmware is added to memblock.memory.

Once the memblock.memory is set up, we reserve the kernel and initrd pages
with memblock reserve.

Since we don't need the bootmem bitmap anymore, the code that finds an
appropriate place is removed.

The conversion does not take care of NUMA support which is marked broken
for more than 10 years now.

Link: http://lkml.kernel.org/r/1535952894-10967-1-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/alpha/Kconfig
arch/alpha/kernel/core_irongate.c
arch/alpha/kernel/setup.c
arch/alpha/mm/numa.c