81 lines
2.1 KiB
C++
81 lines
2.1 KiB
C++
/*
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* \brief Fiasco.OC utilities
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* \author Christian Helmuth
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* \author Stefan Kalkowski
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* \date 2006-04-11
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*
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* Is very practical now, but please keep the errors of the l4util pkg in mind.
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*/
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/*
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* Copyright (C) 2006-2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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#ifndef _CORE__INCLUDE__UTIL_H_
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#define _CORE__INCLUDE__UTIL_H_
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/* Genode includes */
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#include <base/stdint.h>
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#include <base/log.h>
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#include <rm_session/rm_session.h>
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#include <util/touch.h>
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/* base-internal includes */
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#include <base/internal/page_size.h>
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/* Fiasco includes */
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namespace Fiasco {
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#include <l4/sys/types.h>
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#include <l4/sys/ktrace.h>
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}
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namespace Genode {
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inline void panic(const char *s)
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{
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raw(s);
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raw("> panic <");
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while (1) ;
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}
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inline void touch_ro(const void *addr, unsigned size)
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{
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using namespace Fiasco;
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unsigned char const volatile *bptr;
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unsigned char const *eptr;
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bptr = (unsigned char const volatile *)(((Genode::addr_t)addr) & L4_PAGEMASK);
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eptr = (unsigned char const *)(((Genode::addr_t)addr + size - 1) & L4_PAGEMASK);
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for ( ; bptr <= eptr; bptr += L4_PAGESIZE)
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touch_read(bptr);
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}
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inline void touch_rw(const void *addr, unsigned size)
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{
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using namespace Fiasco;
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unsigned char volatile *bptr;
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unsigned char const *eptr;
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bptr = (unsigned char volatile *)(((Genode::addr_t)addr) & L4_PAGEMASK);
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eptr = (unsigned char const *)(((Genode::addr_t)addr + size - 1) & L4_PAGEMASK);
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for (; bptr <= eptr; bptr += L4_PAGESIZE)
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touch_read_write(bptr);
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}
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inline addr_t trunc_page(addr_t addr) { return Fiasco::l4_trunc_page(addr); }
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inline addr_t round_page(addr_t addr) { return Fiasco::l4_round_page(addr); }
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constexpr size_t get_super_page_size() { return L4_SUPERPAGESIZE; }
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constexpr size_t get_super_page_size_log2() { return L4_LOG2_SUPERPAGESIZE; }
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inline addr_t map_src_addr(addr_t core_local_addr, addr_t) {
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return core_local_addr; }
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inline size_t constrain_map_size_log2(size_t size_log2) { return size_log2; }
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}
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#endif /* _CORE__INCLUDE__UTIL_H_ */
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