mirror of https://github.com/l4ka/hazelnut.git
198 lines
4.6 KiB
C
198 lines
4.6 KiB
C
/*********************************************************************
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*
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* Copyright (C) 2000, 2001, 2002, University of Karlsruhe
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*
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* File path: l4/sigma0.h
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* Description: Interface functions for new sigma0 protocol.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* $Id: sigma0.h,v 1.4 2002/05/07 19:36:50 skoglund Exp $
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*
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********************************************************************/
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#ifndef __L4__SIGMA0_H__
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#define __L4__SIGMA0_H__
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#ifdef __cplusplus
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#define l4_sigma0_getpage_rcvpos l4_sigma0_getpage
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#define l4_sigma0_getany_rcvpos l4_sigma0_getany
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#define l4_sigma0_getkerninfo_rcvpos l4_sigma0_getkerninfo
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#endif
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/*
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* Prototypes.
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*/
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L4_INLINE dword_t l4_sigma0_getpage(l4_threadid_t s0, l4_fpage_t fp);
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L4_INLINE dword_t l4_sigma0_getpage_rcvpos(l4_threadid_t s0, l4_fpage_t fp,
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l4_fpage_t rcv);
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L4_INLINE dword_t l4_sigma0_getany(l4_threadid_t s0, dword_t size);
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L4_INLINE dword_t l4_sigma0_getany_rcvpos(l4_threadid_t s0, dword_t size,
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l4_fpage_t rcv);
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L4_INLINE dword_t l4_sigma0_getkerninfo(l4_threadid_t s0);
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L4_INLINE dword_t l4_sigma0_getkerninfo_rcvpos(l4_threadid_t s0,
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l4_fpage_t rcv);
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L4_INLINE int l4_sigma0_freepage(l4_threadid_t s0, l4_fpage_t fp);
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/*
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* Implementation.
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*/
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L4_INLINE dword_t l4_sigma0_getpage(l4_threadid_t s0, l4_fpage_t fp)
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{
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l4_msgdope_t result;
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dword_t dummy, addr;
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if ( s0.raw == 0 ) s0 = L4_SIGMA0_ID;
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l4_ipc_call(s0,
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NULL,
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0x3, 0, fp.raw | 0x3,
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(void *) l4_fpage(0, L4_WHOLE_ADDRESS_SPACE, 1, 0).raw,
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&addr, &dummy, &dummy,
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L4_IPC_NEVER, &result);
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if ( L4_IPC_ERROR(result) )
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return 0;
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return addr;
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}
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L4_INLINE dword_t l4_sigma0_getpage_rcvpos(l4_threadid_t s0, l4_fpage_t fp,
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l4_fpage_t rcv)
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{
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l4_msgdope_t result;
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dword_t dummy, addr;
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if ( s0.raw == 0 ) s0 = L4_SIGMA0_ID;
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l4_ipc_call(s0,
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NULL,
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0x3, 0, fp.raw | 0x3,
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(void *) rcv.raw,
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&addr, &dummy, &dummy,
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L4_IPC_NEVER, &result);
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if ( L4_IPC_ERROR(result) )
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return 0;
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return addr;
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}
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L4_INLINE dword_t l4_sigma0_getany(l4_threadid_t s0, dword_t size)
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{
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l4_msgdope_t result;
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dword_t dummy, addr;
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if ( s0.raw == 0 ) s0 = L4_SIGMA0_ID;
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l4_ipc_call(s0,
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NULL,
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0x3, 0, l4_fpage(0, size, 0, 0).raw | 0x1,
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(void *) l4_fpage(0, L4_WHOLE_ADDRESS_SPACE, 1, 0).raw,
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&addr, &dummy, &dummy,
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L4_IPC_NEVER, &result);
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if ( L4_IPC_ERROR(result) )
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return 0;
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return addr;
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}
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L4_INLINE dword_t l4_sigma0_getany_rcvpos(l4_threadid_t s0, dword_t size,
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l4_fpage_t rcv)
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{
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l4_msgdope_t result;
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dword_t dummy, addr;
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if ( s0.raw == 0 ) s0 = L4_SIGMA0_ID;
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l4_ipc_call(s0,
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NULL,
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0x3, 0, l4_fpage(0, size, 0, 0).raw | 0x1,
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(void *) rcv.raw,
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&addr, &dummy, &dummy,
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L4_IPC_NEVER, &result);
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if ( L4_IPC_ERROR(result) )
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return 0;
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return addr;
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}
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L4_INLINE dword_t l4_sigma0_getkerninfo(l4_threadid_t s0)
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{
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l4_msgdope_t result;
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dword_t dummy, addr;
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if ( s0.raw == 0 ) s0 = L4_SIGMA0_ID;
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l4_ipc_call(s0, NULL,
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0x1, 0, 0,
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(void *) l4_fpage(0, L4_WHOLE_ADDRESS_SPACE, 1, 0).raw,
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&addr, &dummy, &dummy,
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L4_IPC_NEVER, &result);
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if ( L4_IPC_ERROR(result) )
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return 0;
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return addr;
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}
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L4_INLINE dword_t l4_sigma0_getkerninfo_rcvpos(l4_threadid_t s0,
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l4_fpage_t rcv)
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{
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l4_msgdope_t result;
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dword_t dummy, addr;
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if ( s0.raw == 0 ) s0 = L4_SIGMA0_ID;
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l4_ipc_call(s0, NULL,
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0x1, 0, 0,
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(void *) (rcv.raw | 0x2),
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&addr, &dummy, &dummy,
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L4_IPC_NEVER, &result);
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if ( L4_IPC_ERROR(result) )
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return 0;
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return addr;
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}
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L4_INLINE int l4_sigma0_freepage(l4_threadid_t s0, l4_fpage_t fp)
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{
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l4_msgdope_t result;
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if ( s0.raw == 0 ) s0 = L4_SIGMA0_ID;
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l4_ipc_send(s0,
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NULL,
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0, 0, (fp.raw & ~0x3) | 0x2,
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L4_IPC_NEVER, &result);
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if ( L4_IPC_ERROR(result) )
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return -1;
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return 0;
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}
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#endif /* !__L4__SIGMA0_H__ */
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