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-rw-r--r--arch/arm64/include/asm/memory.h9
-rw-r--r--mm/memblock.c14
2 files changed, 18 insertions, 5 deletions
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index 0af70d9abede..ce8614fa376a 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -364,6 +364,15 @@ void dump_mem_limit(void);
# define INIT_MEMBLOCK_RESERVED_REGIONS (INIT_MEMBLOCK_REGIONS + NR_CPUS + 1)
#endif
+/*
+ * memory regions which marked with flag MEMBLOCK_NOMAP(for example, the memory
+ * of the EFI_UNUSABLE_MEMORY type) may divide a continuous memory block into
+ * multiple parts. As a result, the number of memory regions is large.
+ */
+#ifdef CONFIG_EFI
+#define INIT_MEMBLOCK_MEMORY_REGIONS (INIT_MEMBLOCK_REGIONS * 8)
+#endif
+
#include <asm-generic/memory_model.h>
#endif /* __ASM_MEMORY_H */
diff --git a/mm/memblock.c b/mm/memblock.c
index 749abd2685c4..b7ebf4b7e9d9 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -29,6 +29,10 @@
# define INIT_MEMBLOCK_RESERVED_REGIONS INIT_MEMBLOCK_REGIONS
#endif
+#ifndef INIT_MEMBLOCK_MEMORY_REGIONS
+#define INIT_MEMBLOCK_MEMORY_REGIONS INIT_MEMBLOCK_REGIONS
+#endif
+
/**
* DOC: memblock overview
*
@@ -55,9 +59,9 @@
* the allocator metadata. The "memory" and "reserved" types are nicely
* wrapped with struct memblock. This structure is statically
* initialized at build time. The region arrays are initially sized to
- * %INIT_MEMBLOCK_REGIONS for "memory" and %INIT_MEMBLOCK_RESERVED_REGIONS
- * for "reserved". The region array for "physmem" is initially sized to
- * %INIT_PHYSMEM_REGIONS.
+ * %INIT_MEMBLOCK_MEMORY_REGIONS for "memory" and
+ * %INIT_MEMBLOCK_RESERVED_REGIONS for "reserved". The region array
+ * for "physmem" is initially sized to %INIT_PHYSMEM_REGIONS.
* The memblock_allow_resize() enables automatic resizing of the region
* arrays during addition of new regions. This feature should be used
* with care so that memory allocated for the region array will not
@@ -102,7 +106,7 @@ unsigned long min_low_pfn;
unsigned long max_pfn;
unsigned long long max_possible_pfn;
-static struct memblock_region memblock_memory_init_regions[INIT_MEMBLOCK_REGIONS] __initdata_memblock;
+static struct memblock_region memblock_memory_init_regions[INIT_MEMBLOCK_MEMORY_REGIONS] __initdata_memblock;
static struct memblock_region memblock_reserved_init_regions[INIT_MEMBLOCK_RESERVED_REGIONS] __initdata_memblock;
#ifdef CONFIG_HAVE_MEMBLOCK_PHYS_MAP
static struct memblock_region memblock_physmem_init_regions[INIT_PHYSMEM_REGIONS];
@@ -111,7 +115,7 @@ static struct memblock_region memblock_physmem_init_regions[INIT_PHYSMEM_REGIONS
struct memblock memblock __initdata_memblock = {
.memory.regions = memblock_memory_init_regions,
.memory.cnt = 1, /* empty dummy entry */
- .memory.max = INIT_MEMBLOCK_REGIONS,
+ .memory.max = INIT_MEMBLOCK_MEMORY_REGIONS,
.memory.name = "memory",
.reserved.regions = memblock_reserved_init_regions,