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-rw-r--r--include/lib/xlat_tables/xlat_tables_arch.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/include/lib/xlat_tables/xlat_tables_arch.h b/include/lib/xlat_tables/xlat_tables_arch.h
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+++ b/include/lib/xlat_tables/xlat_tables_arch.h
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+/*
+ * Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef XLAT_TABLES_ARCH_H
+#define XLAT_TABLES_ARCH_H
+
+#ifdef __aarch64__
+#include "aarch64/xlat_tables_aarch64.h"
+#else
+#include "aarch32/xlat_tables_aarch32.h"
+#endif
+
+/*
+ * Evaluates to 1 if the given physical address space size is a power of 2,
+ * or 0 if it's not.
+ */
+#define CHECK_PHY_ADDR_SPACE_SIZE(size) \
+ (IS_POWER_OF_TWO(size))
+
+/*
+ * Compute the number of entries required at the initial lookup level to address
+ * the whole virtual address space.
+ */
+#define GET_NUM_BASE_LEVEL_ENTRIES(addr_space_size) \
+ ((addr_space_size) >> \
+ XLAT_ADDR_SHIFT(GET_XLAT_TABLE_LEVEL_BASE(addr_space_size)))
+
+#endif /* XLAT_TABLES_ARCH_H */