mirror of
https://github.com/torvalds/linux.git
synced 2025-11-04 10:40:15 +02:00
c89ab04feb
After removal of CONFIG_HAVE_MEMBLOCK_NODE_MAP we have two equivalent functions that call memory_present() for each region in memblock.memory: sparse_memory_present_with_active_regions() and membocks_present(). Moreover, all architectures have a call to either of these functions preceding the call to sparse_init() and in the most cases they are called one after the other. Mark the regions from memblock.memory as present during sparce_init() by making sparse_init() call memblocks_present(), make memblocks_present() and memory_present() functions static and remove redundant sparse_memory_present_with_active_regions() function. Also remove no longer required HAVE_MEMORY_PRESENT configuration option. Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Link: http://lkml.kernel.org/r/20200712083130.22919-1-rppt@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
/*
|
|
* arch/sh/mm/numa.c - Multiple node support for SH machines
|
|
*
|
|
* Copyright (C) 2007 Paul Mundt
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*/
|
|
#include <linux/module.h>
|
|
#include <linux/memblock.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/numa.h>
|
|
#include <linux/pfn.h>
|
|
#include <asm/sections.h>
|
|
|
|
struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
|
|
EXPORT_SYMBOL_GPL(node_data);
|
|
|
|
/*
|
|
* On SH machines the conventional approach is to stash system RAM
|
|
* in node 0, and other memory blocks in to node 1 and up, ordered by
|
|
* latency. Each node's pgdat is node-local at the beginning of the node,
|
|
* immediately followed by the node mem map.
|
|
*/
|
|
void __init setup_bootmem_node(int nid, unsigned long start, unsigned long end)
|
|
{
|
|
unsigned long start_pfn, end_pfn;
|
|
|
|
/* Don't allow bogus node assignment */
|
|
BUG_ON(nid >= MAX_NUMNODES || nid <= 0);
|
|
|
|
start_pfn = PFN_DOWN(start);
|
|
end_pfn = PFN_DOWN(end);
|
|
|
|
pmb_bolt_mapping((unsigned long)__va(start), start, end - start,
|
|
PAGE_KERNEL);
|
|
|
|
memblock_add(start, end - start);
|
|
|
|
__add_active_range(nid, start_pfn, end_pfn);
|
|
|
|
/* Node-local pgdat */
|
|
NODE_DATA(nid) = memblock_alloc_node(sizeof(struct pglist_data),
|
|
SMP_CACHE_BYTES, nid);
|
|
if (!NODE_DATA(nid))
|
|
panic("%s: Failed to allocate %zu bytes align=0x%x nid=%d\n",
|
|
__func__, sizeof(struct pglist_data), SMP_CACHE_BYTES,
|
|
nid);
|
|
|
|
NODE_DATA(nid)->node_start_pfn = start_pfn;
|
|
NODE_DATA(nid)->node_spanned_pages = end_pfn - start_pfn;
|
|
|
|
/* It's up */
|
|
node_set_online(nid);
|
|
}
|