On arm we have the concept of memory banks which can
be registered and iterated over. This is useful for
other architectures aswell, so add some generic infrastructure
for this.
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
common/memory.c | 18 ++++++++++++++++++
include/memory.h | 15 +++++++++++++++
2 files changed, 33 insertions(+), 0 deletions(-)
diff --git a/common/memory.c b/common/memory.c
index 8f4a768..4d59f15 100644
--- a/common/memory.c
+++ b/common/memory.c
@@ -21,6 +21,7 @@
*/
#include <common.h>
+#include <memory.h>
/*
* Begin and End of memory area for malloc(), and current "brk"
@@ -69,3 +70,20 @@ void *sbrk(ptrdiff_t increment)
return old;
}
+
+LIST_HEAD(memory_banks);
+
+void barebox_add_memory_bank(const char *name, resource_size_t start,
+ resource_size_t size)
+{
+ struct memory_bank *bank = xzalloc(sizeof(*bank));
+ struct device_d *dev;
+
+ dev = add_mem_device(name, start, size, IORESOURCE_MEM_WRITEABLE);
+
+ bank->dev = dev;
+ bank->start = start;
+ bank->size = size;
+
+ list_add_tail(&bank->list, &memory_banks);
+}
diff --git a/include/memory.h b/include/memory.h
index 67b19d7..cb185af 100644
--- a/include/memory.h
+++ b/include/memory.h
@@ -2,9 +2,24 @@
#define __MEM_MALLOC_H
#include <linux/types.h>
+#include <linux/list.h>
void mem_malloc_init(void *start, void *end);
ulong mem_malloc_start(void);
ulong mem_malloc_end(void);
+struct memory_bank {
+ struct list_head list;
+ struct device_d *dev;
+ unsigned long start;
+ unsigned long size;
+};
+
+extern struct list_head memory_banks;
+
+void barebox_add_memory_bank(const char *name, resource_size_t start,
+ resource_size_t size);
+
+#define for_each_memory_bank(mem) list_for_each_entry(mem, &memory_banks, list)
+
#endif
--
1.7.6.3
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