1 files changed, 60 insertions, 0 deletions

diff --git a/arch/arm/include/asm/efi.h b/arch/arm/include/asm/efi.h
new file mode 100644
index 000000000000..c91e330616ad
--- /dev/null
+++ b/arch/arm/include/asm/efi.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2015 Linaro Ltd <ard.biesheuvel@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __ASM_ARM_EFI_H
+#define __ASM_ARM_EFI_H
+
+#include <asm/cacheflush.h>
+#include <asm/cachetype.h>
+#include <asm/early_ioremap.h>
+#include <asm/fixmap.h>
+#include <asm/highmem.h>
+#include <asm/mach/map.h>
+#include <asm/mmu_context.h>
+#include <asm/pgtable.h>
+
+#ifdef CONFIG_EFI
+void efi_init(void);
+
+int efi_create_mapping(struct mm_struct *mm, efi_memory_desc_t *md);
+
+#define efi_call_virt(f, ...)                                           \
+({                                                                      \
+        efi_##f##_t *__f;                                               \
+        efi_status_t __s;                                               \
+                                                                        \
+        efi_virtmap_load();                                             \
+        __f = efi.systab->runtime->f;                                   \
+        __s = __f(__VA_ARGS__);                                         \
+        efi_virtmap_unload();                                           \
+        __s;                                                            \
+})
+
+#define __efi_call_virt(f, ...)                                         \
+({                                                                      \
+        efi_##f##_t *__f;                                               \
+                                                                        \
+        efi_virtmap_load();                                             \
+        __f = efi.systab->runtime->f;                                   \
+        __f(__VA_ARGS__);                                               \
+        efi_virtmap_unload();                                           \
+})
+
+static inline void efi_set_pgd(struct mm_struct *mm)
+{
+        check_and_switch_context(mm, NULL);
+}
+
+void efi_virtmap_load(void);
+void efi_virtmap_unload(void);
+
+#else
+#define efi_init()
+#endif /* CONFIG_EFI */
+
+#endif /* _ASM_ARM_EFI_H */