initial risc-v exampleHEADmaster

1 files changed, 34 insertions, 0 deletions

diff --git a/riscv/include/asm/sections.h b/riscv/include/asm/sections.h
new file mode 100644
index 0000000..a393d50
--- /dev/null
+++ b/riscv/include/asm/sections.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020 Western Digital Corporation or its affiliates.
+ */
+#ifndef __ASM_SECTIONS_H
+#define __ASM_SECTIONS_H
+
+#include <asm-generic/sections.h>
+#include <linux/mm.h>
+
+extern char _start[];
+extern char _start_kernel[];
+extern char __init_data_begin[], __init_data_end[];
+extern char __init_text_begin[], __init_text_end[];
+extern char __alt_start[], __alt_end[];
+extern char __exittext_begin[], __exittext_end[];
+
+static inline bool is_va_kernel_text(uintptr_t va)
+{
+	uintptr_t start = (uintptr_t)_start;
+	uintptr_t end = (uintptr_t)__init_data_begin;
+
+	return va >= start && va < end;
+}
+
+static inline bool is_va_kernel_lm_alias_text(uintptr_t va)
+{
+	uintptr_t start = (uintptr_t)lm_alias(_start);
+	uintptr_t end = (uintptr_t)lm_alias(__init_data_begin);
+
+	return va >= start && va < end;
+}
+
+#endif /* __ASM_SECTIONS_H */