lib: sysmem: add sysmem_alloc_by_name() interface

Change-Id: I9e2fd6d99fdc487396dd9619dc54567bcd2ba242
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>

include/sysmem.h

@@ -59,6 +59,16 @@ int sysmem_initr(void);
  */
 void *sysmem_alloc(enum memblk_id id, phys_size_t size);
 
+/**
+ * sysmem_alloc_by_name() - Alloc sysmem region by name at the expect addr
+ *
+ * @name: memblk name
+ * @size: region size
+ *
+ * @return NULL on error, otherwise the allocated region address ptr
+ */
+void *sysmem_alloc_by_name(const char *name, phys_size_t size);
+
 /**
  * sysmem_alloc_base() - Alloc sysmem region at the expect addr
  *

lib/sysmem.c

@@ -551,6 +551,21 @@ void *sysmem_alloc(enum memblk_id id, phys_size_t size)
 	return paddr;
 }
 
+void *sysmem_alloc_by_name(const char *name, phys_size_t size)
+{
+	void *paddr;
+
+	paddr = sysmem_alloc_align_base(MEMBLK_ID_BY_NAME,
+					name,
+					SYSMEM_ALLOC_ANYWHERE,
+					size,
+					SYSMEM_ALLOC_NO_ALIGN);
+	if (!paddr)
+		sysmem_dump();
+
+	return paddr;
+}
+
 void *sysmem_alloc_base(enum memblk_id id, phys_addr_t base, phys_size_t size)
 {
 	void *paddr;