summaryrefslogtreecommitdiff
path: root/include/linux/memblock.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/memblock.h')
-rw-r--r--include/linux/memblock.h39
1 files changed, 26 insertions, 13 deletions
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 24daf8fc4..3106ac1c8 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -25,6 +25,7 @@ enum {
MEMBLOCK_NONE = 0x0, /* No special request */
MEMBLOCK_HOTPLUG = 0x1, /* hotpluggable region */
MEMBLOCK_MIRROR = 0x2, /* mirrored region */
+ MEMBLOCK_NOMAP = 0x4, /* don't add to kernel direct mapping */
};
struct memblock_region {
@@ -60,6 +61,14 @@ extern int memblock_debug;
extern bool movable_node_enabled;
#endif /* CONFIG_MOVABLE_NODE */
+#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
+#define __init_memblock __meminit
+#define __initdata_memblock __meminitdata
+#else
+#define __init_memblock
+#define __initdata_memblock
+#endif
+
#define memblock_dbg(fmt, ...) \
if (memblock_debug) printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
@@ -82,6 +91,7 @@ bool memblock_overlaps_region(struct memblock_type *type,
int memblock_mark_hotplug(phys_addr_t base, phys_addr_t size);
int memblock_clear_hotplug(phys_addr_t base, phys_addr_t size);
int memblock_mark_mirror(phys_addr_t base, phys_addr_t size);
+int memblock_mark_nomap(phys_addr_t base, phys_addr_t size);
ulong choose_memblock_flags(void);
/* Low level functions */
@@ -164,7 +174,7 @@ static inline bool memblock_is_hotpluggable(struct memblock_region *m)
return m->flags & MEMBLOCK_HOTPLUG;
}
-static inline bool movable_node_is_enabled(void)
+static inline bool __init_memblock movable_node_is_enabled(void)
{
return movable_node_enabled;
}
@@ -184,6 +194,11 @@ static inline bool memblock_is_mirror(struct memblock_region *m)
return m->flags & MEMBLOCK_MIRROR;
}
+static inline bool memblock_is_nomap(struct memblock_region *m)
+{
+ return m->flags & MEMBLOCK_NOMAP;
+}
+
#ifdef CONFIG_HAVE_MEMBLOCK_NODE_MAP
int memblock_search_pfn_nid(unsigned long pfn, unsigned long *start_pfn,
unsigned long *end_pfn);
@@ -209,10 +224,10 @@ void __next_mem_pfn_range(int *idx, int nid, unsigned long *out_start_pfn,
* for_each_free_mem_range - iterate through free memblock areas
* @i: u64 used as loop variable
* @nid: node selector, %NUMA_NO_NODE for all nodes
+ * @flags: pick from blocks based on memory attributes
* @p_start: ptr to phys_addr_t for start address of the range, can be %NULL
* @p_end: ptr to phys_addr_t for end address of the range, can be %NULL
* @p_nid: ptr to int for nid of the range, can be %NULL
- * @flags: pick from blocks based on memory attributes
*
* Walks over free (memory && !reserved) areas of memblock. Available as
* soon as memblock is initialized.
@@ -225,10 +240,10 @@ void __next_mem_pfn_range(int *idx, int nid, unsigned long *out_start_pfn,
* for_each_free_mem_range_reverse - rev-iterate through free memblock areas
* @i: u64 used as loop variable
* @nid: node selector, %NUMA_NO_NODE for all nodes
+ * @flags: pick from blocks based on memory attributes
* @p_start: ptr to phys_addr_t for start address of the range, can be %NULL
* @p_end: ptr to phys_addr_t for end address of the range, can be %NULL
* @p_nid: ptr to int for nid of the range, can be %NULL
- * @flags: pick from blocks based on memory attributes
*
* Walks over free (memory && !reserved) areas of memblock in reverse
* order. Available as soon as memblock is initialized.
@@ -318,9 +333,10 @@ phys_addr_t memblock_mem_size(unsigned long limit_pfn);
phys_addr_t memblock_start_of_DRAM(void);
phys_addr_t memblock_end_of_DRAM(void);
void memblock_enforce_memory_limit(phys_addr_t memory_limit);
-int memblock_is_memory(phys_addr_t addr);
+bool memblock_is_memory(phys_addr_t addr);
+int memblock_is_map_memory(phys_addr_t addr);
int memblock_is_region_memory(phys_addr_t base, phys_addr_t size);
-int memblock_is_reserved(phys_addr_t addr);
+bool memblock_is_reserved(phys_addr_t addr);
bool memblock_is_region_reserved(phys_addr_t base, phys_addr_t size);
extern void __memblock_dump_all(void);
@@ -391,14 +407,11 @@ static inline unsigned long memblock_region_reserved_end_pfn(const struct memblo
region < (memblock.memblock_type.regions + memblock.memblock_type.cnt); \
region++)
-
-#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
-#define __init_memblock __meminit
-#define __initdata_memblock __meminitdata
-#else
-#define __init_memblock
-#define __initdata_memblock
-#endif
+#define for_each_memblock_type(memblock_type, rgn) \
+ idx = 0; \
+ rgn = &memblock_type->regions[idx]; \
+ for (idx = 0; idx < memblock_type->cnt; \
+ idx++,rgn = &memblock_type->regions[idx])
#ifdef CONFIG_MEMTEST
extern void early_memtest(phys_addr_t start, phys_addr_t end);