1/* 2 * This file contains the generic code to perform a call to the 3 * pSeries LPAR hypervisor. 4 * NOTE: this file will go away when we move to inline this work. 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License 8 * as published by the Free Software Foundation; either version 9 * 2 of the License, or (at your option) any later version. 10 */ 11#include <asm/hvcall.h> 12#include <asm/processor.h> 13#include <asm/ppc_asm.h> 14 15#define STK_PARM(i) (48 + ((i)-3)*8) 16 17 .text 18 19/* long plpar_hcall(unsigned long opcode, R3 20 unsigned long arg1, R4 21 unsigned long arg2, R5 22 unsigned long arg3, R6 23 unsigned long arg4, R7 24 unsigned long *out1, R8 25 unsigned long *out2, R9 26 unsigned long *out3); R10 27 */ 28_GLOBAL(plpar_hcall) 29 HMT_MEDIUM 30 31 mfcr r0 32 33 std r8,STK_PARM(r8)(r1) /* Save out ptrs */ 34 std r9,STK_PARM(r9)(r1) 35 std r10,STK_PARM(r10)(r1) 36 37 stw r0,8(r1) 38 39 HVSC /* invoke the hypervisor */ 40 41 lwz r0,8(r1) 42 43 ld r8,STK_PARM(r8)(r1) /* Fetch r4-r6 ret args */ 44 ld r9,STK_PARM(r9)(r1) 45 ld r10,STK_PARM(r10)(r1) 46 std r4,0(r8) 47 std r5,0(r9) 48 std r6,0(r10) 49 50 mtcrf 0xff,r0 51 blr /* return r3 = status */ 52 53 54/* Simple interface with no output values (other than status) */ 55_GLOBAL(plpar_hcall_norets) 56 HMT_MEDIUM 57 58 mfcr r0 59 stw r0,8(r1) 60 61 HVSC /* invoke the hypervisor */ 62 63 lwz r0,8(r1) 64 mtcrf 0xff,r0 65 blr /* return r3 = status */ 66 67 68/* long plpar_hcall_8arg_2ret(unsigned long opcode, R3 69 unsigned long arg1, R4 70 unsigned long arg2, R5 71 unsigned long arg3, R6 72 unsigned long arg4, R7 73 unsigned long arg5, R8 74 unsigned long arg6, R9 75 unsigned long arg7, R10 76 unsigned long arg8, 112(R1) 77 unsigned long *out1); 120(R1) 78 */ 79_GLOBAL(plpar_hcall_8arg_2ret) 80 HMT_MEDIUM 81 82 mfcr r0 83 ld r11,STK_PARM(r11)(r1) /* put arg8 in R11 */ 84 stw r0,8(r1) 85 86 HVSC /* invoke the hypervisor */ 87 88 lwz r0,8(r1) 89 ld r10,STK_PARM(r12)(r1) /* Fetch r4 ret arg */ 90 std r4,0(r10) 91 mtcrf 0xff,r0 92 blr /* return r3 = status */ 93 94 95/* long plpar_hcall_4out(unsigned long opcode, R3 96 unsigned long arg1, R4 97 unsigned long arg2, R5 98 unsigned long arg3, R6 99 unsigned long arg4, R7 100 unsigned long *out1, R8 101 unsigned long *out2, R9 102 unsigned long *out3, R10 103 unsigned long *out4); 112(R1) 104 */ 105_GLOBAL(plpar_hcall_4out) 106 HMT_MEDIUM 107 108 mfcr r0 109 stw r0,8(r1) 110 111 std r8,STK_PARM(r8)(r1) /* Save out ptrs */ 112 std r9,STK_PARM(r9)(r1) 113 std r10,STK_PARM(r10)(r1) 114 115 HVSC /* invoke the hypervisor */ 116 117 lwz r0,8(r1) 118 119 ld r8,STK_PARM(r8)(r1) /* Fetch r4-r7 ret args */ 120 ld r9,STK_PARM(r9)(r1) 121 ld r10,STK_PARM(r10)(r1) 122 ld r11,STK_PARM(r11)(r1) 123 std r4,0(r8) 124 std r5,0(r9) 125 std r6,0(r10) 126 std r7,0(r11) 127 128 mtcrf 0xff,r0 129 blr /* return r3 = status */ 130 131/* plpar_hcall_7arg_7ret(unsigned long opcode, R3 132 unsigned long arg1, R4 133 unsigned long arg2, R5 134 unsigned long arg3, R6 135 unsigned long arg4, R7 136 unsigned long arg5, R8 137 unsigned long arg6, R9 138 unsigned long arg7, R10 139 unsigned long *out1, 112(R1) 140 unsigned long *out2, 110(R1) 141 unsigned long *out3, 108(R1) 142 unsigned long *out4, 106(R1) 143 unsigned long *out5, 104(R1) 144 unsigned long *out6, 102(R1) 145 unsigned long *out7); 100(R1) 146*/ 147_GLOBAL(plpar_hcall_7arg_7ret) 148 HMT_MEDIUM 149 150 mfcr r0 151 stw r0,8(r1) 152 153 HVSC /* invoke the hypervisor */ 154 155 lwz r0,8(r1) 156 157 ld r11,STK_PARM(r11)(r1) /* Fetch r4 ret arg */ 158 std r4,0(r11) 159 ld r11,STK_PARM(r12)(r1) /* Fetch r5 ret arg */ 160 std r5,0(r11) 161 ld r11,STK_PARM(r13)(r1) /* Fetch r6 ret arg */ 162 std r6,0(r11) 163 ld r11,STK_PARM(r14)(r1) /* Fetch r7 ret arg */ 164 std r7,0(r11) 165 ld r11,STK_PARM(r15)(r1) /* Fetch r8 ret arg */ 166 std r8,0(r11) 167 ld r11,STK_PARM(r16)(r1) /* Fetch r9 ret arg */ 168 std r9,0(r11) 169 ld r11,STK_PARM(r17)(r1) /* Fetch r10 ret arg */ 170 std r10,0(r11) 171 172 mtcrf 0xff,r0 173 174 blr /* return r3 = status */ 175 176/* plpar_hcall_9arg_9ret(unsigned long opcode, R3 177 unsigned long arg1, R4 178 unsigned long arg2, R5 179 unsigned long arg3, R6 180 unsigned long arg4, R7 181 unsigned long arg5, R8 182 unsigned long arg6, R9 183 unsigned long arg7, R10 184 unsigned long arg8, 112(R1) 185 unsigned long arg9, 110(R1) 186 unsigned long *out1, 108(R1) 187 unsigned long *out2, 106(R1) 188 unsigned long *out3, 104(R1) 189 unsigned long *out4, 102(R1) 190 unsigned long *out5, 100(R1) 191 unsigned long *out6, 98(R1) 192 unsigned long *out7); 96(R1) 193 unsigned long *out8, 94(R1) 194 unsigned long *out9, 92(R1) 195*/ 196_GLOBAL(plpar_hcall_9arg_9ret) 197 HMT_MEDIUM 198 199 mfcr r0 200 stw r0,8(r1) 201 202 ld r11,STK_PARM(r11)(r1) /* put arg8 in R11 */ 203 ld r12,STK_PARM(r12)(r1) /* put arg9 in R12 */ 204 205 HVSC /* invoke the hypervisor */ 206 207 ld r0,STK_PARM(r13)(r1) /* Fetch r4 ret arg */ 208 stdx r4,r0,r0 209 ld r0,STK_PARM(r14)(r1) /* Fetch r5 ret arg */ 210 stdx r5,r0,r0 211 ld r0,STK_PARM(r15)(r1) /* Fetch r6 ret arg */ 212 stdx r6,r0,r0 213 ld r0,STK_PARM(r16)(r1) /* Fetch r7 ret arg */ 214 stdx r7,r0,r0 215 ld r0,STK_PARM(r17)(r1) /* Fetch r8 ret arg */ 216 stdx r8,r0,r0 217 ld r0,STK_PARM(r18)(r1) /* Fetch r9 ret arg */ 218 stdx r9,r0,r0 219 ld r0,STK_PARM(r19)(r1) /* Fetch r10 ret arg */ 220 stdx r10,r0,r0 221 ld r0,STK_PARM(r20)(r1) /* Fetch r11 ret arg */ 222 stdx r11,r0,r0 223 ld r0,STK_PARM(r21)(r1) /* Fetch r12 ret arg */ 224 stdx r12,r0,r0 225 226 lwz r0,8(r1) 227 mtcrf 0xff,r0 228 229 blr /* return r3 = status */ 230