| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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) |
| Anton Blanchard | eeb24de | 2005-05-01 08:58:46 -0700 | [diff] [blame] | 29 | HMT_MEDIUM |
| 30 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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) |
| Anton Blanchard | eeb24de | 2005-05-01 08:58:46 -0700 | [diff] [blame] | 56 | HMT_MEDIUM |
| 57 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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) |
| Anton Blanchard | eeb24de | 2005-05-01 08:58:46 -0700 | [diff] [blame] | 80 | HMT_MEDIUM |
| 81 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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) |
| Anton Blanchard | eeb24de | 2005-05-01 08:58:46 -0700 | [diff] [blame] | 106 | HMT_MEDIUM |
| 107 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 */ |
| Heiko J Schick | b13a96cf | 2006-03-30 22:47:14 +0200 | [diff] [blame] | 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 */ |