From 35c3151a98a6e6f56552cff8dc7d59e8ef7aca50 Mon Sep 17 00:00:00 2001
From: "Mike Rapoport (Microsoft)" <rppt@kernel.org>
Date: Wed, 9 Apr 2025 15:28:15 +0300
Subject: x86/mm: Consolidate initmem_init()

There are 4 wariants of initmem_init(), for 32 and 64 bits and for
CONFIG_NUMA enabled and disabled.

After commit bbeb69ce3013 ("x86/mm: Remove CONFIG_HIGHMEM64G support")
NUMA is not supported on 32 bit kernels anymore, and
arch/x86/mm/numa_32.c can be just deleted and setup_bootmem_allocator()
with completely misleading name can be folded into initmem_init().

For 64 bits the NUMA variant calls x86_numa_init() and !NUMA variant
sets all memory to node 0. The later can be split out into inline helper
called x86_numa_init() and then both initmem_init() functions become the
same.

Split out memblock_set_node() from initmem_init() for !NUMA on 64 bit
into x86_numa_init() helper and remove arch/x86/mm/numa_*.c that only
contained initmem_init() variants for NUMA configs.

Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Len Brown <len.brown@intel.com>
Link: https://lore.kernel.org/r/20250409122815.420041-1-rppt@kernel.org
---
 arch/x86/mm/numa.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'arch/x86/mm/numa.c')

diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index 64e5cdb2460a..4bf04be29355 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -19,8 +19,9 @@
 #include <asm/proto.h>
 #include <asm/dma.h>
 #include <asm/amd_nb.h>
+#include <asm/numa.h>
 
-#include "numa_internal.h"
+#include "mm_internal.h"
 
 int numa_off;
 
-- 
cgit v1.2.3