e05d26567d
This commit separates certain SMP aspects into 'spec/smp' subdirectories. Thereby it simplifies non-SMP implementations again, where no locking and several platform specific maintainance operations are not needed. Moreover, it moves several platform specifics to appropriated places, removes dead code from x86, and starts to turn global static pointers into references that are handed over.
70 lines
1.4 KiB
C++
70 lines
1.4 KiB
C++
/*
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* \brief Common kernel initialization
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* \author Martin Stein
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* \author Stefan Kalkowski
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* \date 2011-10-20
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*/
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/*
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* Copyright (C) 2011-2015 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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/* core includes */
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#include <kernel/pd.h>
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#include <kernel/kernel.h>
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#include <kernel/test.h>
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#include <platform_pd.h>
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#include <pic.h>
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#include <platform_thread.h>
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/* base includes */
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#include <unmanaged_singleton.h>
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#include <base/native_types.h>
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using namespace Kernel;
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static_assert(sizeof(Genode::sizet_arithm_t) >= 2 * sizeof(size_t),
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"Bad result type for size_t arithmetics.");
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Pd * Kernel::core_pd() {
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return unmanaged_singleton<Genode::Core_platform_pd>()->kernel_pd(); }
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Pic * Kernel::pic() { return unmanaged_singleton<Pic>(); }
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/**
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* Setup kernel environment
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*/
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extern "C" void init_kernel()
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{
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/*
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* As atomic operations are broken in physical mode on some platforms
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* we must avoid the use of 'cmpxchg' by now (includes not using any
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* local static objects.
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*/
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/* calculate in advance as needed later when data writes aren't allowed */
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core_pd();
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/* initialize cpu pool */
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cpu_pool();
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/* initialize PIC */
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pic();
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/* initialize current cpu */
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cpu_pool()->cpu(Cpu::executing_id())->init(*pic(), *core_pd());
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Core_thread::singleton();
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Genode::printf("kernel initialized\n");
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test();
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kernel();
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}
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