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Readded missing file amd64.h
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Sebastian Biemueller
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e72c5df980
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/*********************************************************************
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*
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* Copyright (C) 2004-2006, Karlsruhe University
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*
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* File path: bench/pingpong/amd64.h
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* Description: AMD64 specific pingpong functions
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: amd64.h,v 1.7 2006/10/21 04:09:35 reichelt Exp $
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*
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********************************************************************/
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#include <l4/arch.h>
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#include L4_COMPAT_H_LOCATION
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#define HAVE_ARCH_SPECIFIC
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#define HAVE_ARCH_IPC
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#define HAVE_HANDLE_ARCH_PAGEFAULT
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#define HAVE_READ_CYCLES
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#define L4_REQUEST_MASK ( ~((~0UL) >> ((sizeof (L4_Word_t) * 8) - 20)))
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#define L4_IO_PAGEFAULT (-8UL << 20)
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#define L4_IO_PORT_START (0)
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#define L4_IO_PORT_END (1<<16)
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L4_INLINE L4_Word_t read_cycles (void)
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{
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L4_Word32_t __eax, __edx;
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asm volatile (
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"rdtsc"
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: "=a"(__eax), "=d"(__edx));
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return ( (((L4_Word_t) __edx) << 32) | ( (L4_Word_t) __eax));
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}
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L4_Fpage_t handle_arch_pagefault (L4_MsgTag_t tag, L4_Word_t faddr, L4_Word_t fip, L4_Word_t log2size)
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{
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// If pagefault is an IO-Page, return that IO Fpage
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L4_Fpage_t fp;
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fp.raw = faddr;
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if ((tag.raw & L4_REQUEST_MASK) == L4_IO_PAGEFAULT && L4_IsIoFpage(fp))
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{
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return fp;
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}
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return L4_FpageLog2 (faddr, log2size);
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}
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extern L4_ThreadId32_t ping_tid_32;
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extern void pong_32_thread (void);
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void arch_specific (void)
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{
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#if 0
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L4_Word_t cycles1, cycles2;
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L4_Clock_t usec1, usec2;
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L4_Word_t tot = 1000, i;
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i = tot;
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usec1 = L4_SystemClock();
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cycles1 = read_cycles();
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while (i--)
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L4_Nop();
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usec2 = L4_SystemClock();
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cycles2 = read_cycles();
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printf( "\nNULL system call: %ld cycles1, %ld usec\n",
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((cycles2-cycles1)/tot),((usec2-usec1).raw)/tot);
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#endif
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L4_Word_t control;
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L4_Msg_t msg;
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INTER_AS=1; MIGRATE=0; SMALL_AS=0; LIPC=0;
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ping_tid_32 = L4_ThreadId32 (ping_tid);
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printf("\nIPC between 32-bit and 64-bit threads:\n\n");
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L4_ThreadControl (ping_tid, ping_tid, master_tid,
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L4_nilthread, UTCB(0));
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L4_ThreadControl (pong_tid, pong_tid, master_tid,
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L4_nilthread, UTCB(1));
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L4_SpaceControl (ping_tid, 0, kip_area, utcb_area, L4_nilthread,
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&control);
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L4_SpaceControl (pong_tid, 1ULL << 63, kip_area, utcb_area, L4_nilthread,
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&control);
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if (control & (1ULL << 63))
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{
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L4_ThreadControl (ping_tid, ping_tid, master_tid, pager_tid,
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NOUTCB);
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L4_ThreadControl (pong_tid, pong_tid, master_tid, pager_tid,
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NOUTCB);
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L4_Clear (&msg);
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L4_Append (&msg, START_ADDR (ping_thread));
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L4_Append (&msg, START_ADDR (pong_32_thread));
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L4_Load (&msg);
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L4_Send (pager_tid);
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L4_Receive (ping_tid);
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}
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else
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printf("Compatibility Mode support not compiled in.\n");
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L4_ThreadControl (ping_tid, L4_nilthread, L4_nilthread,
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L4_nilthread, NOUTCB);
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L4_ThreadControl (pong_tid, L4_nilthread, L4_nilthread,
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L4_nilthread, NOUTCB);
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}
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L4_INLINE L4_Word_t pingpong_ipc (L4_ThreadId_t dest, L4_Word_t untyped)
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{
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L4_Word_t dummy;
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__asm__ __volatile__ (
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"/* pingpong_arch_ipc() */\n"
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"movq %%rax, %%r9 \n"
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"xorq %%r8, %%r8 \n"
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"pushq %%rbp \n"
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"call *__L4_Ipc \n" /* jump via KIP */
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"popq %%rbp \n"
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"movq %%r9, %%rax \n"
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: "=S" (dummy),
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"=a" (untyped),
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"=d" (dest)
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: "a" (untyped),
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"d" (dest),
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"S" (dest),
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"D" (__L4_X86_Utcb())
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: "rbx", "rcx", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15");
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return untyped;
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}
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