4d3d4ecca0
With this, we get rid of platform specific timer interfaces. The new Timer class does the same as the old Clock class and has a generic interface. The old Timer class was merely used by the old Clock class. Also, we get rid of having only one timer instance which we tell with each method call for which CPU it shall be done. Instead now each Cpu object has its own Timer member that knows the CPU it works for. Also, rename all "tics" to "ticks". Fixes #2347
51 lines
989 B
C++
51 lines
989 B
C++
/*
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* \brief Timer driver for core
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* \author Reto Buerki
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* \date 2015-04-14
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*/
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/*
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* Copyright (C) 2015-2017 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 _TIMER_DRIVER_H_
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#define _TIMER_DRIVER_H_
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/* Genode includes */
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#include <base/stdint.h>
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namespace Kernel { class Timer_driver; }
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struct Kernel::Timer_driver
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{
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enum { TIMER_DISABLED = ~0ULL };
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Genode::uint64_t ticks_per_ms;
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struct Subject_timed_event
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{
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Genode::uint64_t tsc_trigger;
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Genode::uint8_t event_nr :5;
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} __attribute__((packed));
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struct Subject_timed_event * event_page = 0;
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struct Subject_timed_event * guest_event_page = 0;
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inline Genode::uint64_t rdtsc()
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{
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Genode::uint32_t lo, hi;
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asm volatile("rdtsc" : "=a" (lo), "=d" (hi));
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return (Genode::uint64_t)hi << 32 | lo;
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}
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class Invalid_region { };
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Timer_driver(unsigned);
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};
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#endif /* _TIMER_DRIVER_H_ */
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