1 files changed, 36 insertions, 0 deletions
diff --git a/arch/arm64/kernel/pi/pi.h b/arch/arm64/kernel/pi/pi.h
new file mode 100644
index 000000000000..c91e5e965cd3
--- /dev/null
+++ b/arch/arm64/kernel/pi/pi.h
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright 2023 Google LLC
+// Author: Ard Biesheuvel <ardb@google.com>
+
+#include <linux/types.h>
+
+#define __prel64_initconst	__section(".init.rodata.prel64")
+
+#define PREL64(type, name)	union { type *name; prel64_t name ## _prel; }
+
+#define prel64_pointer(__d)	(typeof(__d))prel64_to_pointer(&__d##_prel)
+
+typedef volatile signed long prel64_t;
+
+static inline void *prel64_to_pointer(const prel64_t *offset)
+{
+	if (!*offset)
+		return NULL;
+	return (void *)offset + *offset;
+}
+
+extern bool dynamic_scs_is_enabled;
+
+extern pgd_t init_idmap_pg_dir[], init_idmap_pg_end[];
+
+void init_feature_override(u64 boot_status, const void *fdt, int chosen);
+u64 kaslr_early_init(void *fdt, int chosen);
+void relocate_kernel(u64 offset);
+int scs_patch(const u8 eh_frame[], int size);
+
+void map_range(u64 *pgd, u64 start, u64 end, u64 pa, pgprot_t prot,
+	       int level, pte_t *tbl, bool may_use_cont, u64 va_offset);
+
+asmlinkage void early_map_kernel(u64 boot_status, void *fdt);
+
+asmlinkage u64 create_init_idmap(pgd_t *pgd, pteval_t clrmask);