sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/context-e500.h

   1 /* getcontext/setcontext/makecontext support for e500 high parts of registers.
   2    Copyright (C) 2006-2014 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library 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 GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _CONTEXT_E500_H
  20 #define _CONTEXT_E500_H 1
  21
  22 #if defined __SPE__ || (defined __NO_FPRS__ && !defined _SOFT_FLOAT)
  23
  24 # define __CONTEXT_ENABLE_E500 1
  25
  26 /* We follow the kernel's layout, which saves the high parts of the
  27    SPE registers in the vregs area, immediately followed by the ACC
  28    value (call-clobbered, not handled here) and the SPEFSCR value.  */
  29
  30 .macro getcontext_e500
  31         la      r10,(_UC_VREGS)(r3)
  32         evstwwe r0,(0*4)(r10)
  33         evstwwe r1,(1*4)(r10)
  34         evstwwe r2,(2*4)(r10)
  35         evstwwe r3,(3*4)(r10)
  36         evstwwe r4,(4*4)(r10)
  37         evstwwe r5,(5*4)(r10)
  38         evstwwe r6,(6*4)(r10)
  39         evstwwe r7,(7*4)(r10)
  40         evstwwe r8,(8*4)(r10)
  41         evstwwe r9,(9*4)(r10)
  42         evstwwe r10,(10*4)(r10)
  43         evstwwe r11,(11*4)(r10)
  44         evstwwe r12,(12*4)(r10)
  45         evstwwe r13,(13*4)(r10)
  46         evstwwe r14,(14*4)(r10)
  47         evstwwe r15,(15*4)(r10)
  48         evstwwe r16,(16*4)(r10)
  49         evstwwe r17,(17*4)(r10)
  50         evstwwe r18,(18*4)(r10)
  51         evstwwe r19,(19*4)(r10)
  52         evstwwe r20,(20*4)(r10)
  53         evstwwe r21,(21*4)(r10)
  54         evstwwe r22,(22*4)(r10)
  55         evstwwe r23,(23*4)(r10)
  56         evstwwe r24,(24*4)(r10)
  57         evstwwe r25,(25*4)(r10)
  58         evstwwe r26,(26*4)(r10)
  59         evstwwe r27,(27*4)(r10)
  60         evstwwe r28,(28*4)(r10)
  61         evstwwe r29,(29*4)(r10)
  62         evstwwe r30,(30*4)(r10)
  63         evstwwe r31,(31*4)(r10)
  64         mfspefscr       r9
  65         stw     r9,(34*4)(r10)
  66 .endm
  67
  68 .macro setcontext_e500
  69         lwz     r3,_UC_VREGS+(0*4)(r31)
  70         evmergelo       r0,r3,r0
  71         lwz     r3,_UC_VREGS+(1*4)(r31)
  72         evmergelo       r1,r3,r1
  73         lwz     r3,_UC_VREGS+(2*4)(r31)
  74         evmergelo       r2,r3,r2
  75         lwz     r3,_UC_VREGS+(1*4)(r31)
  76         evmergelo       r1,r3,r1
  77         lwz     r3,_UC_VREGS+(2*4)(r31)
  78         evmergelo       r2,r3,r2
  79         lwz     r3,_UC_VREGS+(3*4)(r31)
  80         evmergelo       r3,r3,r3
  81         lwz     r3,_UC_VREGS+(4*4)(r31)
  82         evmergelo       r4,r3,r4
  83         lwz     r3,_UC_VREGS+(5*4)(r31)
  84         evmergelo       r5,r3,r5
  85         lwz     r3,_UC_VREGS+(6*4)(r31)
  86         evmergelo       r6,r3,r6
  87         lwz     r3,_UC_VREGS+(7*4)(r31)
  88         evmergelo       r7,r3,r7
  89         lwz     r3,_UC_VREGS+(8*4)(r31)
  90         evmergelo       r8,r3,r8
  91         lwz     r3,_UC_VREGS+(9*4)(r31)
  92         evmergelo       r9,r3,r9
  93         lwz     r3,_UC_VREGS+(10*4)(r31)
  94         evmergelo       r10,r3,r10
  95         lwz     r3,_UC_VREGS+(11*4)(r31)
  96         evmergelo       r11,r3,r11
  97         lwz     r3,_UC_VREGS+(12*4)(r31)
  98         evmergelo       r12,r3,r12
  99         lwz     r3,_UC_VREGS+(13*4)(r31)
 100         evmergelo       r13,r3,r13
 101         lwz     r3,_UC_VREGS+(14*4)(r31)
 102         evmergelo       r14,r3,r14
 103         lwz     r3,_UC_VREGS+(15*4)(r31)
 104         evmergelo       r15,r3,r15
 105         lwz     r3,_UC_VREGS+(16*4)(r31)
 106         evmergelo       r16,r3,r16
 107         lwz     r3,_UC_VREGS+(17*4)(r31)
 108         evmergelo       r17,r3,r17
 109         lwz     r3,_UC_VREGS+(18*4)(r31)
 110         evmergelo       r18,r3,r18
 111         lwz     r3,_UC_VREGS+(19*4)(r31)
 112         evmergelo       r19,r3,r19
 113         lwz     r3,_UC_VREGS+(20*4)(r31)
 114         evmergelo       r20,r3,r20
 115         lwz     r3,_UC_VREGS+(21*4)(r31)
 116         evmergelo       r21,r3,r21
 117         lwz     r3,_UC_VREGS+(22*4)(r31)
 118         evmergelo       r22,r3,r22
 119         lwz     r3,_UC_VREGS+(23*4)(r31)
 120         evmergelo       r23,r3,r23
 121         lwz     r3,_UC_VREGS+(24*4)(r31)
 122         evmergelo       r24,r3,r24
 123         lwz     r3,_UC_VREGS+(25*4)(r31)
 124         evmergelo       r25,r3,r25
 125         lwz     r3,_UC_VREGS+(26*4)(r31)
 126         evmergelo       r26,r3,r26
 127         lwz     r3,_UC_VREGS+(27*4)(r31)
 128         evmergelo       r27,r3,r27
 129         lwz     r3,_UC_VREGS+(28*4)(r31)
 130         evmergelo       r28,r3,r28
 131         lwz     r3,_UC_VREGS+(29*4)(r31)
 132         evmergelo       r29,r3,r29
 133         lwz     r3,_UC_VREGS+(30*4)(r31)
 134         evmergelo       r30,r3,r30
 135         lwz     r3,_UC_VREGS+(31*4)(r31)
 136         evmergelo       r31,r3,r31
 137         lwz     r3,_UC_VREGS+(34*4)(r31)
 138         mtspefscr       r3
 139 .endm
 140 #else
 141 # undef __CONTEXT_ENABLE_E500
 142 #endif
 143
 144 #endif /* context-e500.h */