kernel/arch/hexagon/kernel/vm_ops.S

   1 /*
   2  * Hexagon VM instruction support
   3  *
   4  * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 and
   8  * only version 2 as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  18  * 02110-1301, USA.
  19  */
  20
  21 #include <linux/linkage.h>
  22 #include <asm/hexagon_vm.h>
  23
  24 /*
  25  * C wrappers for virtual machine "instructions".  These
  26  * could be, and perhaps some day will be, handled as in-line
  27  * macros, but for tracing/debugging it's handy to have
  28  * a single point of invocation for each of them.
  29  * Conveniently, they take paramters and return values
  30  * consistent with the ABI calling convention.
  31  */
  32
  33 ENTRY(__vmrte)
  34         trap1(#HVM_TRAP1_VMRTE);
  35         jumpr   R31;
  36
  37 ENTRY(__vmsetvec)
  38         trap1(#HVM_TRAP1_VMSETVEC);
  39         jumpr   R31;
  40
  41 ENTRY(__vmsetie)
  42         trap1(#HVM_TRAP1_VMSETIE);
  43         jumpr   R31;
  44
  45 ENTRY(__vmgetie)
  46         trap1(#HVM_TRAP1_VMGETIE);
  47         jumpr   R31;
  48
  49 ENTRY(__vmintop)
  50         trap1(#HVM_TRAP1_VMINTOP);
  51         jumpr   R31;
  52
  53 ENTRY(__vmclrmap)
  54         trap1(#HVM_TRAP1_VMCLRMAP);
  55         jumpr   R31;
  56
  57 ENTRY(__vmnewmap)
  58         r1 = #VM_NEWMAP_TYPE_PGTABLES;
  59         trap1(#HVM_TRAP1_VMNEWMAP);
  60         jumpr   R31;
  61
  62 ENTRY(__vmcache)
  63         trap1(#HVM_TRAP1_VMCACHE);
  64         jumpr   R31;
  65
  66 ENTRY(__vmgettime)
  67         trap1(#HVM_TRAP1_VMGETTIME);
  68         jumpr   R31;
  69
  70 ENTRY(__vmsettime)
  71         trap1(#HVM_TRAP1_VMSETTIME);
  72         jumpr   R31;
  73
  74 ENTRY(__vmwait)
  75         trap1(#HVM_TRAP1_VMWAIT);
  76         jumpr   R31;
  77
  78 ENTRY(__vmyield)
  79         trap1(#HVM_TRAP1_VMYIELD);
  80         jumpr   R31;
  81
  82 ENTRY(__vmstart)
  83         trap1(#HVM_TRAP1_VMSTART);
  84         jumpr   R31;
  85
  86 ENTRY(__vmstop)
  87         trap1(#HVM_TRAP1_VMSTOP);
  88         jumpr   R31;
  89
  90 ENTRY(__vmvpid)
  91         trap1(#HVM_TRAP1_VMVPID);
  92         jumpr   R31;
  93
  94 /*  Probably not actually going to use these; see vm_entry.S  */
  95
  96 ENTRY(__vmsetregs)
  97         trap1(#HVM_TRAP1_VMSETREGS);
  98         jumpr   R31;
  99
 100 ENTRY(__vmgetregs)
 101         trap1(#HVM_TRAP1_VMGETREGS);
 102         jumpr   R31;