powerpc doesn't access early_node_map[] directly and enabling
HAVE_MEMBLOCK_NODE_MAP is trivial - replacing add_active_range() calls
with memblock_set_node() and selecting HAVE_MEMBLOCK_NODE_MAP is
enough.
Signed-off-by: Tejun Heo <t...@kernel.org>
---
benh, the proposed memblock changes are now in tip:x86/memblock, which
is probably scheduled for the next merge window. This patch converts
powerpc to drop early_node_map[] and put NUMA information in memblock.
I'm planning on converting all early_node_map[] users and dropping the
code. I don't have access to ppc NUMA machine so the patch is tested
only on a non-NUMA SMP machine. It builds fine for all valid
combinations of of 32/64 [!]SMP [!]NUMA.
If this change is okay, how should this patch be routed? ppc tree
pulls from x86/memblock and puts this patch on top of it?
Thanks.
arch/powerpc/Kconfig | 1 +
arch/powerpc/mm/mem.c | 2 +-
arch/powerpc/mm/numa.c | 10 ++++------
3 files changed, 6 insertions(+), 7 deletions(-)
Index: work/arch/powerpc/Kconfig
===================================================================
--- work.orig/arch/powerpc/Kconfig
+++ work/arch/powerpc/Kconfig
@@ -117,6 +117,7 @@ config PPC
select HAVE_KRETPROBES
select HAVE_ARCH_TRACEHOOK
select HAVE_MEMBLOCK
+ select HAVE_MEMBLOCK_NODE_MAP
select HAVE_DMA_ATTRS
select HAVE_DMA_API_DEBUG
select USE_GENERIC_SMP_HELPERS if SMP
Index: work/arch/powerpc/mm/mem.c
===================================================================
--- work.orig/arch/powerpc/mm/mem.c
+++ work/arch/powerpc/mm/mem.c
@@ -197,7 +197,7 @@ void __init do_init_bootmem(void)
unsigned long start_pfn, end_pfn;
start_pfn = memblock_region_memory_base_pfn(reg);
end_pfn = memblock_region_memory_end_pfn(reg);
- add_active_range(0, start_pfn, end_pfn);
+ memblock_set_node(0, (phys_addr_t)ULLONG_MAX, 0);
}
/* Add all physical memory to the bootmem map, mark each area
Index: work/arch/powerpc/mm/numa.c
===================================================================
--- work.orig/arch/powerpc/mm/numa.c
+++ work/arch/powerpc/mm/numa.c
@@ -680,9 +680,7 @@ static void __init parse_drconf_memory(s
node_set_online(nid);
sz = numa_enforce_memory_limit(base, size);
if (sz)
- add_active_range(nid, base >> PAGE_SHIFT,
- (base >> PAGE_SHIFT)
- + (sz >> PAGE_SHIFT));
+ memblock_set_node(base, sz, nid);
} while (--ranges);
}
}
@@ -772,8 +770,7 @@ new_range:
continue;
}
- add_active_range(nid, start >> PAGE_SHIFT,
- (start >> PAGE_SHIFT) + (size >> PAGE_SHIFT));
+ memblock_set_node(start, size, nid);
if (--ranges)
goto new_range;
@@ -808,7 +805,8 @@ static void __init setup_nonnuma(void)
end_pfn = memblock_region_memory_end_pfn(reg);
fake_numa_create_new_node(end_pfn, &nid);
- add_active_range(nid, start_pfn, end_pfn);
+ memblock_set_node(PFN_PHYS(start_pfn),
+ PFN_PHYS(end_pfn - start_pfn), nid);
node_set_online(nid);
}
}
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