Imported Genode release 11.11

base-codezero/src/core/include/util.h

@@ -0,0 +1,46 @@
+/*
+ * \brief   Core-internal utilities
+ * \author  Norman Feske
+ * \date    2009-10-02
+ */
+
+/*
+ * Copyright (C) 2009-2011 Genode Labs GmbH
+ *
+ * This file is part of the Genode OS framework, which is distributed
+ * under the terms of the GNU General Public License version 2.
+ */
+
+#ifndef _CORE__INCLUDE__UTIL_H_
+#define _CORE__INCLUDE__UTIL_H_
+
+/* Genode includes */
+#include <rm_session/rm_session.h>
+#include <base/printf.h>
+
+/* Codezero includes */
+#include <codezero/syscalls.h>
+
+namespace Genode {
+
+	inline size_t get_page_size_log2()    { return 12; }
+	inline size_t get_page_size()         { return 1 << get_page_size_log2(); }
+	inline addr_t get_page_mask()         { return ~(get_page_size() - 1); }
+	inline addr_t trunc_page(addr_t addr) { return addr & get_page_mask(); }
+	inline addr_t round_page(addr_t addr) { return trunc_page(addr + get_page_size() - 1); }
+
+	inline addr_t map_src_addr(addr_t core_local, addr_t phys) { return phys; }
+	inline size_t constrain_map_size_log2(size_t size_log2) { return get_page_size_log2(); }
+
+	inline void print_page_fault(const char *msg, addr_t pf_addr, addr_t pf_ip,
+	                             Rm_session::Fault_type pf_type,
+	                             unsigned long faulter_badge)
+	{
+		printf("%s (%s pf_addr=%p pf_ip=%p from %02lx)\n", msg,
+		       pf_type == Rm_session::WRITE_FAULT ? "WRITE" : "READ",
+		       (void *)pf_addr, (void *)pf_ip,
+		       faulter_badge);
+	}
+}
+
+#endif /* _CORE__INCLUDE__UTIL_H_ */