x86: Use HAVE_MEMBLOCK_NODE_MAP
From 5732e1247898d67cbf837585150fe9f68974671d Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Thu, 14 Jul 2011 11:22:16 +0200
Convert x86 to HAVE_MEMBLOCK_NODE_MAP. The only difference in memory
handling is that allocations can't no longer cross node boundaries
whether they're node affine or not, which shouldn't matter at all.
This conversion will enable further simplification of boot memory
handling.
-v2: Fix build failure on !NUMA configurations discovered by hpa.
Signed-off-by: Tejun Heo <tj@kernel.org>
Link: http://lkml.kernel.org/r/20110714094423.GG3455@htj.dyndns.org
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index da34972..97f0894 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -25,6 +25,7 @@
select HAVE_IOREMAP_PROT
select HAVE_KPROBES
select HAVE_MEMBLOCK
+ select HAVE_MEMBLOCK_NODE_MAP
select ARCH_WANT_OPTIONAL_GPIOLIB
select ARCH_WANT_FRAME_POINTERS
select HAVE_DMA_ATTRS
diff --git a/arch/x86/include/asm/memblock.h b/arch/x86/include/asm/memblock.h
index 161792e..1460db2 100644
--- a/arch/x86/include/asm/memblock.h
+++ b/arch/x86/include/asm/memblock.h
@@ -12,8 +12,6 @@
unsigned long start_pfn, unsigned long end_pfn);
int get_free_all_memory_range(struct range **rangep, int nodeid);
-void memblock_x86_register_active_regions(int nid, unsigned long start_pfn,
- unsigned long last_pfn);
u64 memblock_x86_hole_size(u64 start, u64 end);
u64 memblock_x86_free_memory_in_range(u64 addr, u64 limit);
u64 memblock_x86_memory_in_range(u64 addr, u64 limit);
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 29f7c6d9..5d173db 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -650,18 +650,18 @@
highstart_pfn = highend_pfn = max_pfn;
if (max_pfn > max_low_pfn)
highstart_pfn = max_low_pfn;
- memblock_x86_register_active_regions(0, 0, highend_pfn);
- sparse_memory_present_with_active_regions(0);
printk(KERN_NOTICE "%ldMB HIGHMEM available.\n",
pages_to_mb(highend_pfn - highstart_pfn));
num_physpages = highend_pfn;
high_memory = (void *) __va(highstart_pfn * PAGE_SIZE - 1) + 1;
#else
- memblock_x86_register_active_regions(0, 0, max_low_pfn);
- sparse_memory_present_with_active_regions(0);
num_physpages = max_low_pfn;
high_memory = (void *) __va(max_low_pfn * PAGE_SIZE - 1) + 1;
#endif
+
+ memblock_set_node(0, (phys_addr_t)ULLONG_MAX, 0);
+ sparse_memory_present_with_active_regions(0);
+
#ifdef CONFIG_FLATMEM
max_mapnr = num_physpages;
#endif
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index d865c4ae..7fb064c 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -607,7 +607,7 @@
#ifndef CONFIG_NUMA
void __init initmem_init(void)
{
- memblock_x86_register_active_regions(0, 0, max_pfn);
+ memblock_set_node(0, (phys_addr_t)ULLONG_MAX, 0);
}
#endif
diff --git a/arch/x86/mm/memblock.c b/arch/x86/mm/memblock.c
index e4569f8..97fbc39 100644
--- a/arch/x86/mm/memblock.c
+++ b/arch/x86/mm/memblock.c
@@ -283,20 +283,6 @@
return 1;
}
-/* Walk the memblock.memory map and register active regions within a node */
-void __init memblock_x86_register_active_regions(int nid, unsigned long start_pfn,
- unsigned long last_pfn)
-{
- unsigned long ei_startpfn;
- unsigned long ei_endpfn;
- struct memblock_region *r;
-
- for_each_memblock(memory, r)
- if (memblock_x86_find_active_region(r, start_pfn, last_pfn,
- &ei_startpfn, &ei_endpfn))
- add_active_range(nid, ei_startpfn, ei_endpfn);
-}
-
/*
* Find the hole size (in bytes) in the memory range.
* @start: starting address of the memory range to scan
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index 824efad..f4a40bd 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -498,13 +498,10 @@
if (WARN_ON(nodes_empty(node_possible_map)))
return -EINVAL;
- for (i = 0; i < mi->nr_blks; i++)
- memblock_x86_register_active_regions(mi->blk[i].nid,
- mi->blk[i].start >> PAGE_SHIFT,
- mi->blk[i].end >> PAGE_SHIFT);
-
- /* for out of order entries */
- sort_node_map();
+ for (i = 0; i < mi->nr_blks; i++) {
+ struct numa_memblk *mb = &mi->blk[i];
+ memblock_set_node(mb->start, mb->end - mb->start, mb->nid);
+ }
/*
* If sections array is gonna be used for pfn -> nid mapping, check
@@ -538,6 +535,8 @@
setup_node_data(nid, start, end);
}
+ /* Dump memblock with node info and return. */
+ memblock_dump_all();
return 0;
}
@@ -575,7 +574,7 @@
nodes_clear(node_possible_map);
nodes_clear(node_online_map);
memset(&numa_meminfo, 0, sizeof(numa_meminfo));
- remove_all_active_ranges();
+ WARN_ON(memblock_set_node(0, ULLONG_MAX, MAX_NUMNODES));
numa_reset_distance();
ret = init_func();