1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 
  22 /*
  23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26 
  27 /*
  28  * Assembly language support for the iospc IO performance counter driver.
  29  */
  30  
  31 #include <sys/asm_linkage.h>
  32 #include <sys/hypervisor_api.h>
  33 #include "rfios_acc.h"
  34 
  35 /*LINTLIBRARY*/
  36 
  37 #if defined(lint)
  38 
  39 /*ARGSUSED*/    
  40 int
  41 rfiospc_get_perfreg(cntr_handle_t handle, int regid, uint64_t *data)
  42 { return (0); }
  43 
  44 /*ARGSUSED*/    
  45 int
  46 rfiospc_set_perfreg(cntr_handle_t handle, int regid, uint64_t data)
  47 { return (0); }
  48 
  49 #else /* lint */
  50 
  51         ENTRY(rfiospc_get_perfreg)
  52         mov     RFIOS_GET_PERFREG, %o5
  53         ta      FAST_TRAP
  54         brz,a   %o0, 1f
  55         stx     %o1, [%o2]
  56 1:      retl
  57         nop
  58         SET_SIZE(rfiospc_get_perfreg)
  59 
  60         ENTRY(rfiospc_set_perfreg)
  61         mov     RFIOS_SET_PERFREG, %o5
  62         ta      FAST_TRAP
  63         retl
  64         nop
  65         SET_SIZE(rfiospc_set_perfreg)
  66 
  67 #endif