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-rw-r--r--arch/arm/include/asm/memory.h15
1 files changed, 14 insertions, 1 deletions
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index a711322d9f40..cfc9dfd70aad 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -20,8 +20,14 @@
#endif
#include <asm/kasan_def.h>
-/* PAGE_OFFSET - the virtual address of the start of the kernel image */
+/*
+ * PAGE_OFFSET: the virtual address of the start of lowmem, memory above
+ * the virtual address range for userspace.
+ * KERNEL_OFFSET: the virtual address of the start of the kernel image.
+ * we may further offset this with TEXT_OFFSET in practice.
+ */
#define PAGE_OFFSET UL(CONFIG_PAGE_OFFSET)
+#define KERNEL_OFFSET (PAGE_OFFSET)
#ifdef CONFIG_MMU
@@ -153,6 +159,13 @@ extern unsigned long vectors_base;
#ifndef __ASSEMBLY__
/*
+ * Physical start and end address of the kernel sections. These addresses are
+ * 2MB-aligned to match the section mappings placed over the kernel.
+ */
+extern u32 kernel_sec_start;
+extern u32 kernel_sec_end;
+
+/*
* Physical vs virtual RAM address space conversion. These are
* private definitions which should NOT be used outside memory.h
* files. Use virt_to_phys/phys_to_virt/__pa/__va instead.