2016-02-11 11:59:31 +01:00
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/**
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* \brief Calls supported by machine mode (or SBI interface in RISC-V)
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* \author Sebastian Sumpf
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2015-11-10 12:49:05 +01:00
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* \author Martin Stein
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2016-02-11 11:59:31 +01:00
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* \date 2015-06-14
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*/
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/*
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* Copyright (C) 2015-2016 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 General Public License version 2.
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*/
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#ifndef _MACHINE_CALL_H_
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#define _MACHINE_CALL_H_
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2015-11-10 12:49:05 +01:00
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/* base-hw includes */
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#include <kernel/interface.h>
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2016-02-11 11:59:31 +01:00
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namespace Machine {
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2015-11-10 12:49:05 +01:00
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using namespace Kernel;
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2016-02-11 11:59:31 +01:00
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2015-11-10 12:49:05 +01:00
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/**
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* SBI calls to machine mode.
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*
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* Keep in sync with mode_transition.s.
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*/
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constexpr Call_arg call_id_put_char() { return 0x100; }
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constexpr Call_arg call_id_set_sys_timer() { return 0x101; }
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constexpr Call_arg call_id_is_user_mode() { return 0x102; }
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2016-02-11 11:59:31 +01:00
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2015-11-10 12:49:05 +01:00
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inline void put_char(Genode::uint64_t const c) {
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call(call_id_put_char(), (Call_arg)c); }
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inline void set_sys_timer(addr_t const t) {
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call(call_id_set_sys_timer(), (Call_arg)t); }
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inline bool is_user_mode() { return call(call_id_is_user_mode()); }
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2016-02-11 11:59:31 +01:00
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}
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#endif /* _MACHINE_CALL_H_ */
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