Thread (45 messages) 45 messages, 5 authors, 2011-08-19
STALE5448d

[PATCH 15/23] powerpc: Use HAVE_MEMBLOCK_NODE_MAP

From: Tejun Heo <tj@kernel.org>
Date: 2011-07-26 15:40:02
Also in: lkml
Subsystem: linux for powerpc (32-bit and 64-bit), the rest · Maintainers: Madhavan Srinivasan, Michael Ellerman, Linus Torvalds

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 <tj@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Yinghai Lu <yinghai@kernel.org>
---
 arch/powerpc/Kconfig   |    1 +
 arch/powerpc/mm/mem.c  |    2 +-
 arch/powerpc/mm/numa.c |   10 ++++------
 3 files changed, 6 insertions(+), 7 deletions(-)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 2729c66..900f54f 100644
--- a/arch/powerpc/Kconfig
+++ b/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
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 29d4dde..3ec2192 100644
--- a/arch/powerpc/mm/mem.c
+++ b/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
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 6f06ea5..4978286 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -680,9 +680,7 @@ static void __init parse_drconf_memory(struct device_node *memory)
 			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);
 	}
 }
-- 
1.7.6
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