bb075ea130
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@145 315a16e6-25f9-4109-90ae-ca3045a26c18
81 lines
2 KiB
C
81 lines
2 KiB
C
/*
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* Copyright 2010 Stefan Lankes, Chair for Operating Systems,
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* RWTH Aachen University
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* This file is part of MetalSVM.
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*/
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#ifndef __ARCH_PROCESSOR_H__
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#define __ARCH_PROCESSOR_H__
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#include <metalsvm/stddef.h>
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#ifdef CONFIG_PCI
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#include <asm/pci.h>
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#endif
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#ifdef CONFIG_ROCKCREEK
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#include <asm/scc.h>
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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static inline uint64_t rdtsc(void)
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{
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uint64_t x;
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asm volatile ("rdtsc" : "=A" (x));
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return x;
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}
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#define flush_cache() asm volatile ("wbinvd" : : : "memory")
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#define invalid_cache() asm volatile ("invd")
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/* Force strict CPU ordering */
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#ifdef CONFIG_ROCKCREEK
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#define mb() asm volatile ("lock; addl $0,0(%%esp)" ::: "memory")
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#define rmb() asm volatile ("lock; addl $0,0(%%esp)" ::: "memory")
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#define wmb() asm volatile ("lock; addl $0,0(%%esp)" ::: "memory")
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#else
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#define mb() asm volatile("mfence" ::: "memory")
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#define rmb() asm volatile("lfence" ::: "memory")
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#define wmb() asm volatile("sfence" ::: "memory")
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#endif
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#define get_return_value(ret) asm volatile ("movl %%eax, %0" : "=r"(ret))
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#define NOP1 asm volatile ("nop")
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#define NOP2 asm volatile ("nop;nop")
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#define NOP4 asm volatile ("nop;nop;nop;nop")
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#define NOP8 asm volatile ("nop;nop;nop;nop;nop;nop;nop;nop")
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void gdt_install(void);
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inline static int system_init(void)
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{
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#ifdef CONFIG_ROCKCREEK
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scc_init();
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#endif
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gdt_install();
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#ifdef CONFIG_PCI
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pci_init();
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#endif
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return 0;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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