David S. Miller | bade5622 | 2006-02-09 22:05:54 -0800 | [diff] [blame] | 1 | /* pci_sun4v_asm: Hypervisor calls for PCI support. |
| 2 | * |
| 3 | * Copyright (C) 2006 David S. Miller <davem@davemloft.net> |
| 4 | */ |
| 5 | |
| 6 | #include <asm/hypervisor.h> |
| 7 | |
| 8 | /* %o0: devhandle |
David S. Miller | bade5622 | 2006-02-09 22:05:54 -0800 | [diff] [blame] | 9 | * %o1: tsbid |
| 10 | * %o2: num ttes |
| 11 | * %o3: io_attributes |
| 12 | * %o4: io_page_list phys address |
| 13 | * |
David S. Miller | 6a32fd4 | 2006-02-19 22:21:32 -0800 | [diff] [blame] | 14 | * returns %o0: -status if status was non-zero, else |
| 15 | * %o0: num pages mapped |
David S. Miller | bade5622 | 2006-02-09 22:05:54 -0800 | [diff] [blame] | 16 | */ |
| 17 | .globl pci_sun4v_iommu_map |
| 18 | pci_sun4v_iommu_map: |
David S. Miller | 6a32fd4 | 2006-02-19 22:21:32 -0800 | [diff] [blame] | 19 | mov %o5, %g1 |
David S. Miller | 1839794 | 2006-02-10 00:08:26 -0800 | [diff] [blame] | 20 | mov HV_FAST_PCI_IOMMU_MAP, %o5 |
David S. Miller | bade5622 | 2006-02-09 22:05:54 -0800 | [diff] [blame] | 21 | ta HV_FAST_TRAP |
David S. Miller | 6a32fd4 | 2006-02-19 22:21:32 -0800 | [diff] [blame] | 22 | brnz,pn %o0, 1f |
| 23 | sub %g0, %o0, %o0 |
| 24 | mov %o1, %o0 |
| 25 | 1: retl |
| 26 | nop |
David S. Miller | bade5622 | 2006-02-09 22:05:54 -0800 | [diff] [blame] | 27 | |
| 28 | /* %o0: devhandle |
| 29 | * %o1: tsbid |
| 30 | * %o2: num ttes |
| 31 | * |
| 32 | * returns %o0: num ttes demapped |
| 33 | */ |
| 34 | .globl pci_sun4v_iommu_demap |
| 35 | pci_sun4v_iommu_demap: |
David S. Miller | 1839794 | 2006-02-10 00:08:26 -0800 | [diff] [blame] | 36 | mov HV_FAST_PCI_IOMMU_DEMAP, %o5 |
David S. Miller | bade5622 | 2006-02-09 22:05:54 -0800 | [diff] [blame] | 37 | ta HV_FAST_TRAP |
| 38 | retl |
| 39 | mov %o1, %o0 |
David S. Miller | 7eae642 | 2006-02-09 22:20:01 -0800 | [diff] [blame] | 40 | |
| 41 | /* %o0: devhandle |
David S. Miller | 1839794 | 2006-02-10 00:08:26 -0800 | [diff] [blame] | 42 | * %o1: tsbid |
| 43 | * %o2: &io_attributes |
| 44 | * %o3: &real_address |
| 45 | * |
| 46 | * returns %o0: status |
| 47 | */ |
| 48 | .globl pci_sun4v_iommu_getmap |
| 49 | pci_sun4v_iommu_getmap: |
| 50 | mov %o2, %o4 |
| 51 | mov HV_FAST_PCI_IOMMU_GETMAP, %o5 |
| 52 | ta HV_FAST_TRAP |
| 53 | stx %o1, [%o4] |
| 54 | stx %o2, [%o3] |
| 55 | retl |
| 56 | mov %o0, %o0 |
| 57 | |
| 58 | /* %o0: devhandle |
David S. Miller | 7eae642 | 2006-02-09 22:20:01 -0800 | [diff] [blame] | 59 | * %o1: pci_device |
| 60 | * %o2: pci_config_offset |
| 61 | * %o3: size |
| 62 | * |
| 63 | * returns %o0: data |
| 64 | * |
| 65 | * If there is an error, the data will be returned |
| 66 | * as all 1's. |
| 67 | */ |
| 68 | .globl pci_sun4v_config_get |
| 69 | pci_sun4v_config_get: |
David S. Miller | 1839794 | 2006-02-10 00:08:26 -0800 | [diff] [blame] | 70 | mov HV_FAST_PCI_CONFIG_GET, %o5 |
David S. Miller | 7eae642 | 2006-02-09 22:20:01 -0800 | [diff] [blame] | 71 | ta HV_FAST_TRAP |
| 72 | brnz,a,pn %o1, 1f |
| 73 | mov -1, %o2 |
| 74 | 1: retl |
| 75 | mov %o2, %o0 |
| 76 | |
| 77 | /* %o0: devhandle |
| 78 | * %o1: pci_device |
| 79 | * %o2: pci_config_offset |
| 80 | * %o3: size |
| 81 | * %o4: data |
| 82 | * |
| 83 | * returns %o0: status |
| 84 | * |
| 85 | * status will be zero if the operation completed |
| 86 | * successfully, else -1 if not |
| 87 | */ |
| 88 | .globl pci_sun4v_config_put |
| 89 | pci_sun4v_config_put: |
David S. Miller | 1839794 | 2006-02-10 00:08:26 -0800 | [diff] [blame] | 90 | mov HV_FAST_PCI_CONFIG_PUT, %o5 |
David S. Miller | 7eae642 | 2006-02-09 22:20:01 -0800 | [diff] [blame] | 91 | ta HV_FAST_TRAP |
| 92 | brnz,a,pn %o1, 1f |
| 93 | mov -1, %o1 |
| 94 | 1: retl |
| 95 | mov %o1, %o0 |
David S. Miller | 35a17eb | 2007-02-10 17:41:02 -0800 | [diff] [blame] | 96 | |
| 97 | /* %o0: devhandle |
| 98 | * %o1: msiqid |
| 99 | * %o2: msiq phys address |
| 100 | * %o3: num entries |
| 101 | * |
| 102 | * returns %o0: status |
| 103 | * |
| 104 | * status will be zero if the operation completed |
| 105 | * successfully, else -1 if not |
| 106 | */ |
| 107 | .globl pci_sun4v_msiq_conf |
| 108 | pci_sun4v_msiq_conf: |
| 109 | mov HV_FAST_PCI_MSIQ_CONF, %o5 |
| 110 | ta HV_FAST_TRAP |
| 111 | retl |
| 112 | mov %o0, %o0 |
| 113 | |
| 114 | /* %o0: devhandle |
| 115 | * %o1: msiqid |
| 116 | * %o2: &msiq_phys_addr |
| 117 | * %o3: &msiq_num_entries |
| 118 | * |
| 119 | * returns %o0: status |
| 120 | */ |
| 121 | .globl pci_sun4v_msiq_info |
| 122 | pci_sun4v_msiq_info: |
| 123 | mov %o2, %o4 |
| 124 | mov HV_FAST_PCI_MSIQ_INFO, %o5 |
| 125 | ta HV_FAST_TRAP |
| 126 | stx %o1, [%o4] |
| 127 | stx %o2, [%o3] |
| 128 | retl |
| 129 | mov %o0, %o0 |
| 130 | |
| 131 | /* %o0: devhandle |
| 132 | * %o1: msiqid |
| 133 | * %o2: &valid |
| 134 | * |
| 135 | * returns %o0: status |
| 136 | */ |
| 137 | .globl pci_sun4v_msiq_getvalid |
| 138 | pci_sun4v_msiq_getvalid: |
| 139 | mov HV_FAST_PCI_MSIQ_GETVALID, %o5 |
| 140 | ta HV_FAST_TRAP |
| 141 | stx %o1, [%o2] |
| 142 | retl |
| 143 | mov %o0, %o0 |
| 144 | |
| 145 | /* %o0: devhandle |
| 146 | * %o1: msiqid |
| 147 | * %o2: valid |
| 148 | * |
| 149 | * returns %o0: status |
| 150 | */ |
| 151 | .globl pci_sun4v_msiq_setvalid |
| 152 | pci_sun4v_msiq_setvalid: |
| 153 | mov HV_FAST_PCI_MSIQ_SETVALID, %o5 |
| 154 | ta HV_FAST_TRAP |
| 155 | retl |
| 156 | mov %o0, %o0 |
| 157 | |
| 158 | /* %o0: devhandle |
| 159 | * %o1: msiqid |
| 160 | * %o2: &state |
| 161 | * |
| 162 | * returns %o0: status |
| 163 | */ |
| 164 | .globl pci_sun4v_msiq_getstate |
| 165 | pci_sun4v_msiq_getstate: |
| 166 | mov HV_FAST_PCI_MSIQ_GETSTATE, %o5 |
| 167 | ta HV_FAST_TRAP |
| 168 | stx %o1, [%o2] |
| 169 | retl |
| 170 | mov %o0, %o0 |
| 171 | |
| 172 | /* %o0: devhandle |
| 173 | * %o1: msiqid |
| 174 | * %o2: state |
| 175 | * |
| 176 | * returns %o0: status |
| 177 | */ |
| 178 | .globl pci_sun4v_msiq_setstate |
| 179 | pci_sun4v_msiq_setstate: |
| 180 | mov HV_FAST_PCI_MSIQ_SETSTATE, %o5 |
| 181 | ta HV_FAST_TRAP |
| 182 | retl |
| 183 | mov %o0, %o0 |
| 184 | |
| 185 | /* %o0: devhandle |
| 186 | * %o1: msiqid |
| 187 | * %o2: &head |
| 188 | * |
| 189 | * returns %o0: status |
| 190 | */ |
| 191 | .globl pci_sun4v_msiq_gethead |
| 192 | pci_sun4v_msiq_gethead: |
| 193 | mov HV_FAST_PCI_MSIQ_GETHEAD, %o5 |
| 194 | ta HV_FAST_TRAP |
| 195 | stx %o1, [%o2] |
| 196 | retl |
| 197 | mov %o0, %o0 |
| 198 | |
| 199 | /* %o0: devhandle |
| 200 | * %o1: msiqid |
| 201 | * %o2: head |
| 202 | * |
| 203 | * returns %o0: status |
| 204 | */ |
| 205 | .globl pci_sun4v_msiq_sethead |
| 206 | pci_sun4v_msiq_sethead: |
| 207 | mov HV_FAST_PCI_MSIQ_SETHEAD, %o5 |
| 208 | ta HV_FAST_TRAP |
| 209 | retl |
| 210 | mov %o0, %o0 |
| 211 | |
| 212 | /* %o0: devhandle |
| 213 | * %o1: msiqid |
| 214 | * %o2: &tail |
| 215 | * |
| 216 | * returns %o0: status |
| 217 | */ |
| 218 | .globl pci_sun4v_msiq_gettail |
| 219 | pci_sun4v_msiq_gettail: |
| 220 | mov HV_FAST_PCI_MSIQ_GETTAIL, %o5 |
| 221 | ta HV_FAST_TRAP |
| 222 | stx %o1, [%o2] |
| 223 | retl |
| 224 | mov %o0, %o0 |
| 225 | |
| 226 | /* %o0: devhandle |
| 227 | * %o1: msinum |
| 228 | * %o2: &valid |
| 229 | * |
| 230 | * returns %o0: status |
| 231 | */ |
| 232 | .globl pci_sun4v_msi_getvalid |
| 233 | pci_sun4v_msi_getvalid: |
| 234 | mov HV_FAST_PCI_MSI_GETVALID, %o5 |
| 235 | ta HV_FAST_TRAP |
| 236 | stx %o1, [%o2] |
| 237 | retl |
| 238 | mov %o0, %o0 |
| 239 | |
| 240 | /* %o0: devhandle |
| 241 | * %o1: msinum |
| 242 | * %o2: valid |
| 243 | * |
| 244 | * returns %o0: status |
| 245 | */ |
| 246 | .globl pci_sun4v_msi_setvalid |
| 247 | pci_sun4v_msi_setvalid: |
| 248 | mov HV_FAST_PCI_MSI_SETVALID, %o5 |
| 249 | ta HV_FAST_TRAP |
| 250 | retl |
| 251 | mov %o0, %o0 |
| 252 | |
| 253 | /* %o0: devhandle |
| 254 | * %o1: msinum |
| 255 | * %o2: &msiq |
| 256 | * |
| 257 | * returns %o0: status |
| 258 | */ |
| 259 | .globl pci_sun4v_msi_getmsiq |
| 260 | pci_sun4v_msi_getmsiq: |
| 261 | mov HV_FAST_PCI_MSI_GETMSIQ, %o5 |
| 262 | ta HV_FAST_TRAP |
| 263 | stx %o1, [%o2] |
| 264 | retl |
| 265 | mov %o0, %o0 |
| 266 | |
| 267 | /* %o0: devhandle |
| 268 | * %o1: msinum |
| 269 | * %o2: msitype |
| 270 | * %o3: msiq |
| 271 | * |
| 272 | * returns %o0: status |
| 273 | */ |
| 274 | .globl pci_sun4v_msi_setmsiq |
| 275 | pci_sun4v_msi_setmsiq: |
| 276 | mov HV_FAST_PCI_MSI_SETMSIQ, %o5 |
| 277 | ta HV_FAST_TRAP |
| 278 | retl |
| 279 | mov %o0, %o0 |
| 280 | |
| 281 | /* %o0: devhandle |
| 282 | * %o1: msinum |
| 283 | * %o2: &state |
| 284 | * |
| 285 | * returns %o0: status |
| 286 | */ |
| 287 | .globl pci_sun4v_msi_getstate |
| 288 | pci_sun4v_msi_getstate: |
| 289 | mov HV_FAST_PCI_MSI_GETSTATE, %o5 |
| 290 | ta HV_FAST_TRAP |
| 291 | stx %o1, [%o2] |
| 292 | retl |
| 293 | mov %o0, %o0 |
| 294 | |
| 295 | /* %o0: devhandle |
| 296 | * %o1: msinum |
| 297 | * %o2: state |
| 298 | * |
| 299 | * returns %o0: status |
| 300 | */ |
| 301 | .globl pci_sun4v_msi_setstate |
| 302 | pci_sun4v_msi_setstate: |
| 303 | mov HV_FAST_PCI_MSI_SETSTATE, %o5 |
| 304 | ta HV_FAST_TRAP |
| 305 | retl |
| 306 | mov %o0, %o0 |
| 307 | |
| 308 | /* %o0: devhandle |
| 309 | * %o1: msinum |
| 310 | * %o2: &msiq |
| 311 | * |
| 312 | * returns %o0: status |
| 313 | */ |
| 314 | .globl pci_sun4v_msg_getmsiq |
| 315 | pci_sun4v_msg_getmsiq: |
| 316 | mov HV_FAST_PCI_MSG_GETMSIQ, %o5 |
| 317 | ta HV_FAST_TRAP |
| 318 | stx %o1, [%o2] |
| 319 | retl |
| 320 | mov %o0, %o0 |
| 321 | |
| 322 | /* %o0: devhandle |
| 323 | * %o1: msinum |
| 324 | * %o2: msiq |
| 325 | * |
| 326 | * returns %o0: status |
| 327 | */ |
| 328 | .globl pci_sun4v_msg_setmsiq |
| 329 | pci_sun4v_msg_setmsiq: |
| 330 | mov HV_FAST_PCI_MSG_SETMSIQ, %o5 |
| 331 | ta HV_FAST_TRAP |
| 332 | retl |
| 333 | mov %o0, %o0 |
| 334 | |
| 335 | /* %o0: devhandle |
| 336 | * %o1: msinum |
| 337 | * %o2: &valid |
| 338 | * |
| 339 | * returns %o0: status |
| 340 | */ |
| 341 | .globl pci_sun4v_msg_getvalid |
| 342 | pci_sun4v_msg_getvalid: |
| 343 | mov HV_FAST_PCI_MSG_GETVALID, %o5 |
| 344 | ta HV_FAST_TRAP |
| 345 | stx %o1, [%o2] |
| 346 | retl |
| 347 | mov %o0, %o0 |
| 348 | |
| 349 | /* %o0: devhandle |
| 350 | * %o1: msinum |
| 351 | * %o2: valid |
| 352 | * |
| 353 | * returns %o0: status |
| 354 | */ |
| 355 | .globl pci_sun4v_msg_setvalid |
| 356 | pci_sun4v_msg_setvalid: |
| 357 | mov HV_FAST_PCI_MSG_SETVALID, %o5 |
| 358 | ta HV_FAST_TRAP |
| 359 | retl |
| 360 | mov %o0, %o0 |
| 361 | |