[PATCH v2 1/6] memory: export inside_barebox_area

[Ahmad Fatoum <a.fatoum@barebox.org>]

Knowing whether some object lies with barebox memory area can be useful
beyond the memory resource code, so export the function for general use.

Signed-off-by: Ahmad Fatoum <a.fatoum@barebox.org>
---
 common/memory.c  | 9 +++++++--
 include/memory.h | 6 ++++++
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/common/memory.c b/common/memory.c
index a5b081be2c70..4e3cb1571e93 100644
--- a/common/memory.c
+++ b/common/memory.c
@@ -72,14 +72,19 @@ static int mem_register_barebox(void)
 }
 postmem_initcall(mem_register_barebox);
 
+bool inside_barebox_area(resource_size_t start, resource_size_t end)
+{
+	return barebox_res && barebox_res->start <= start &&
+		end <= barebox_res->end;
+}
+
 struct resource *request_barebox_region(const char *name,
 					resource_size_t start,
 					resource_size_t size)
 {
 	resource_size_t end = start + size - 1;
 
-	if (barebox_res && barebox_res->start <= start &&
-	    end <= barebox_res->end) {
+	if (inside_barebox_area(start, end)) {
 		struct resource *iores;
 		iores = __request_region(barebox_res, start, end,
 					 name, IORESOURCE_MEM);
diff --git a/include/memory.h b/include/memory.h
index 09c10b773fac..707c0f13130d 100644
--- a/include/memory.h
+++ b/include/memory.h
@@ -64,6 +64,7 @@ static inline u64 memory_sdram_size(unsigned int cols,
 void register_barebox_area(resource_size_t start, resource_size_t size);
 
 #if IN_PROPER
+bool inside_barebox_area(resource_size_t start, resource_size_t end);
 struct resource *request_barebox_region(const char *name,
 					resource_size_t start,
 					resource_size_t size);
@@ -75,6 +76,11 @@ static inline struct resource *request_barebox_region(const char *name,
 
 		return NULL;
 }
+
+static inline bool inside_barebox_area(resource_size_t start, resource_size_t end)
+{
+	return false;
+}
 #endif
 
 #endif
-- 
2.39.5