Commit | Line | Data |
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bade5622 DM |
1 | /* pci_sun4v_asm: Hypervisor calls for PCI support. |
2 | * | |
fefbbc73 | 3 | * Copyright (C) 2006, 2008 David S. Miller <davem@davemloft.net> |
bade5622 DM |
4 | */ |
5 | ||
fefbbc73 | 6 | #include <linux/linkage.h> |
bade5622 DM |
7 | #include <asm/hypervisor.h> |
8 | ||
bade5622 DM |
9 | /* %o0: devhandle |
10 | * %o1: tsbid | |
11 | * %o2: num ttes | |
12 | * %o3: io_attributes | |
13 | * %o4: io_page_list phys address | |
14 | * | |
6a32fd4d DM |
15 | * returns %o0: -status if status was non-zero, else |
16 | * %o0: num pages mapped | |
bade5622 | 17 | */ |
fefbbc73 | 18 | ENTRY(pci_sun4v_iommu_map) |
6a32fd4d | 19 | mov %o5, %g1 |
18397944 | 20 | mov HV_FAST_PCI_IOMMU_MAP, %o5 |
bade5622 | 21 | ta HV_FAST_TRAP |
6a32fd4d DM |
22 | brnz,pn %o0, 1f |
23 | sub %g0, %o0, %o0 | |
24 | mov %o1, %o0 | |
25 | 1: retl | |
26 | nop | |
fefbbc73 | 27 | ENDPROC(pci_sun4v_iommu_map) |
bade5622 DM |
28 | |
29 | /* %o0: devhandle | |
30 | * %o1: tsbid | |
31 | * %o2: num ttes | |
32 | * | |
33 | * returns %o0: num ttes demapped | |
34 | */ | |
fefbbc73 | 35 | ENTRY(pci_sun4v_iommu_demap) |
18397944 | 36 | mov HV_FAST_PCI_IOMMU_DEMAP, %o5 |
bade5622 DM |
37 | ta HV_FAST_TRAP |
38 | retl | |
39 | mov %o1, %o0 | |
fefbbc73 | 40 | ENDPROC(pci_sun4v_iommu_demap) |
7eae642f | 41 | |
18397944 DM |
42 | /* %o0: devhandle |
43 | * %o1: tsbid | |
44 | * %o2: &io_attributes | |
45 | * %o3: &real_address | |
46 | * | |
47 | * returns %o0: status | |
48 | */ | |
fefbbc73 | 49 | ENTRY(pci_sun4v_iommu_getmap) |
18397944 DM |
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 | |
fefbbc73 | 57 | ENDPROC(pci_sun4v_iommu_getmap) |
18397944 | 58 | |
7eae642f DM |
59 | /* %o0: devhandle |
60 | * %o1: pci_device | |
61 | * %o2: pci_config_offset | |
62 | * %o3: size | |
63 | * | |
64 | * returns %o0: data | |
65 | * | |
66 | * If there is an error, the data will be returned | |
67 | * as all 1's. | |
68 | */ | |
fefbbc73 | 69 | ENTRY(pci_sun4v_config_get) |
18397944 | 70 | mov HV_FAST_PCI_CONFIG_GET, %o5 |
7eae642f DM |
71 | ta HV_FAST_TRAP |
72 | brnz,a,pn %o1, 1f | |
73 | mov -1, %o2 | |
74 | 1: retl | |
75 | mov %o2, %o0 | |
fefbbc73 | 76 | ENDPROC(pci_sun4v_config_get) |
7eae642f DM |
77 | |
78 | /* %o0: devhandle | |
79 | * %o1: pci_device | |
80 | * %o2: pci_config_offset | |
81 | * %o3: size | |
82 | * %o4: data | |
83 | * | |
84 | * returns %o0: status | |
85 | * | |
86 | * status will be zero if the operation completed | |
87 | * successfully, else -1 if not | |
88 | */ | |
fefbbc73 | 89 | ENTRY(pci_sun4v_config_put) |
18397944 | 90 | mov HV_FAST_PCI_CONFIG_PUT, %o5 |
7eae642f DM |
91 | ta HV_FAST_TRAP |
92 | brnz,a,pn %o1, 1f | |
93 | mov -1, %o1 | |
94 | 1: retl | |
95 | mov %o1, %o0 | |
fefbbc73 | 96 | ENDPROC(pci_sun4v_config_put) |
35a17eb6 DM |
97 | |
98 | /* %o0: devhandle | |
99 | * %o1: msiqid | |
100 | * %o2: msiq phys address | |
101 | * %o3: num entries | |
102 | * | |
103 | * returns %o0: status | |
104 | * | |
105 | * status will be zero if the operation completed | |
106 | * successfully, else -1 if not | |
107 | */ | |
fefbbc73 | 108 | ENTRY(pci_sun4v_msiq_conf) |
35a17eb6 DM |
109 | mov HV_FAST_PCI_MSIQ_CONF, %o5 |
110 | ta HV_FAST_TRAP | |
111 | retl | |
112 | mov %o0, %o0 | |
fefbbc73 | 113 | ENDPROC(pci_sun4v_msiq_conf) |
35a17eb6 DM |
114 | |
115 | /* %o0: devhandle | |
116 | * %o1: msiqid | |
117 | * %o2: &msiq_phys_addr | |
118 | * %o3: &msiq_num_entries | |
119 | * | |
120 | * returns %o0: status | |
121 | */ | |
fefbbc73 | 122 | ENTRY(pci_sun4v_msiq_info) |
35a17eb6 DM |
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 | |
fefbbc73 | 130 | ENDPROC(pci_sun4v_msiq_info) |
35a17eb6 DM |
131 | |
132 | /* %o0: devhandle | |
133 | * %o1: msiqid | |
134 | * %o2: &valid | |
135 | * | |
136 | * returns %o0: status | |
137 | */ | |
fefbbc73 | 138 | ENTRY(pci_sun4v_msiq_getvalid) |
35a17eb6 DM |
139 | mov HV_FAST_PCI_MSIQ_GETVALID, %o5 |
140 | ta HV_FAST_TRAP | |
141 | stx %o1, [%o2] | |
142 | retl | |
143 | mov %o0, %o0 | |
fefbbc73 | 144 | ENDPROC(pci_sun4v_msiq_getvalid) |
35a17eb6 DM |
145 | |
146 | /* %o0: devhandle | |
147 | * %o1: msiqid | |
148 | * %o2: valid | |
149 | * | |
150 | * returns %o0: status | |
151 | */ | |
fefbbc73 | 152 | ENTRY(pci_sun4v_msiq_setvalid) |
35a17eb6 DM |
153 | mov HV_FAST_PCI_MSIQ_SETVALID, %o5 |
154 | ta HV_FAST_TRAP | |
155 | retl | |
156 | mov %o0, %o0 | |
fefbbc73 | 157 | ENDPROC(pci_sun4v_msiq_setvalid) |
35a17eb6 DM |
158 | |
159 | /* %o0: devhandle | |
160 | * %o1: msiqid | |
161 | * %o2: &state | |
162 | * | |
163 | * returns %o0: status | |
164 | */ | |
fefbbc73 | 165 | ENTRY(pci_sun4v_msiq_getstate) |
35a17eb6 DM |
166 | mov HV_FAST_PCI_MSIQ_GETSTATE, %o5 |
167 | ta HV_FAST_TRAP | |
168 | stx %o1, [%o2] | |
169 | retl | |
170 | mov %o0, %o0 | |
fefbbc73 | 171 | ENDPROC(pci_sun4v_msiq_getstate) |
35a17eb6 DM |
172 | |
173 | /* %o0: devhandle | |
174 | * %o1: msiqid | |
175 | * %o2: state | |
176 | * | |
177 | * returns %o0: status | |
178 | */ | |
fefbbc73 | 179 | ENTRY(pci_sun4v_msiq_setstate) |
35a17eb6 DM |
180 | mov HV_FAST_PCI_MSIQ_SETSTATE, %o5 |
181 | ta HV_FAST_TRAP | |
182 | retl | |
183 | mov %o0, %o0 | |
fefbbc73 | 184 | ENDPROC(pci_sun4v_msiq_setstate) |
35a17eb6 DM |
185 | |
186 | /* %o0: devhandle | |
187 | * %o1: msiqid | |
188 | * %o2: &head | |
189 | * | |
190 | * returns %o0: status | |
191 | */ | |
fefbbc73 | 192 | ENTRY(pci_sun4v_msiq_gethead) |
35a17eb6 DM |
193 | mov HV_FAST_PCI_MSIQ_GETHEAD, %o5 |
194 | ta HV_FAST_TRAP | |
195 | stx %o1, [%o2] | |
196 | retl | |
197 | mov %o0, %o0 | |
fefbbc73 | 198 | ENDPROC(pci_sun4v_msiq_gethead) |
35a17eb6 DM |
199 | |
200 | /* %o0: devhandle | |
201 | * %o1: msiqid | |
202 | * %o2: head | |
203 | * | |
204 | * returns %o0: status | |
205 | */ | |
fefbbc73 | 206 | ENTRY(pci_sun4v_msiq_sethead) |
35a17eb6 DM |
207 | mov HV_FAST_PCI_MSIQ_SETHEAD, %o5 |
208 | ta HV_FAST_TRAP | |
209 | retl | |
210 | mov %o0, %o0 | |
fefbbc73 | 211 | ENDPROC(pci_sun4v_msiq_sethead) |
35a17eb6 DM |
212 | |
213 | /* %o0: devhandle | |
214 | * %o1: msiqid | |
215 | * %o2: &tail | |
216 | * | |
217 | * returns %o0: status | |
218 | */ | |
fefbbc73 | 219 | ENTRY(pci_sun4v_msiq_gettail) |
35a17eb6 DM |
220 | mov HV_FAST_PCI_MSIQ_GETTAIL, %o5 |
221 | ta HV_FAST_TRAP | |
222 | stx %o1, [%o2] | |
223 | retl | |
224 | mov %o0, %o0 | |
fefbbc73 | 225 | ENDPROC(pci_sun4v_msiq_gettail) |
35a17eb6 DM |
226 | |
227 | /* %o0: devhandle | |
228 | * %o1: msinum | |
229 | * %o2: &valid | |
230 | * | |
231 | * returns %o0: status | |
232 | */ | |
fefbbc73 | 233 | ENTRY(pci_sun4v_msi_getvalid) |
35a17eb6 DM |
234 | mov HV_FAST_PCI_MSI_GETVALID, %o5 |
235 | ta HV_FAST_TRAP | |
236 | stx %o1, [%o2] | |
237 | retl | |
238 | mov %o0, %o0 | |
fefbbc73 | 239 | ENDPROC(pci_sun4v_msi_getvalid) |
35a17eb6 DM |
240 | |
241 | /* %o0: devhandle | |
242 | * %o1: msinum | |
243 | * %o2: valid | |
244 | * | |
245 | * returns %o0: status | |
246 | */ | |
fefbbc73 | 247 | ENTRY(pci_sun4v_msi_setvalid) |
35a17eb6 DM |
248 | mov HV_FAST_PCI_MSI_SETVALID, %o5 |
249 | ta HV_FAST_TRAP | |
250 | retl | |
251 | mov %o0, %o0 | |
fefbbc73 | 252 | ENDPROC(pci_sun4v_msi_setvalid) |
35a17eb6 DM |
253 | |
254 | /* %o0: devhandle | |
255 | * %o1: msinum | |
256 | * %o2: &msiq | |
257 | * | |
258 | * returns %o0: status | |
259 | */ | |
fefbbc73 | 260 | ENTRY(pci_sun4v_msi_getmsiq) |
35a17eb6 DM |
261 | mov HV_FAST_PCI_MSI_GETMSIQ, %o5 |
262 | ta HV_FAST_TRAP | |
263 | stx %o1, [%o2] | |
264 | retl | |
265 | mov %o0, %o0 | |
fefbbc73 | 266 | ENDPROC(pci_sun4v_msi_getmsiq) |
35a17eb6 DM |
267 | |
268 | /* %o0: devhandle | |
269 | * %o1: msinum | |
270 | * %o2: msitype | |
271 | * %o3: msiq | |
272 | * | |
273 | * returns %o0: status | |
274 | */ | |
fefbbc73 | 275 | ENTRY(pci_sun4v_msi_setmsiq) |
35a17eb6 DM |
276 | mov HV_FAST_PCI_MSI_SETMSIQ, %o5 |
277 | ta HV_FAST_TRAP | |
278 | retl | |
279 | mov %o0, %o0 | |
fefbbc73 | 280 | ENDPROC(pci_sun4v_msi_setmsiq) |
35a17eb6 DM |
281 | |
282 | /* %o0: devhandle | |
283 | * %o1: msinum | |
284 | * %o2: &state | |
285 | * | |
286 | * returns %o0: status | |
287 | */ | |
fefbbc73 | 288 | ENTRY(pci_sun4v_msi_getstate) |
35a17eb6 DM |
289 | mov HV_FAST_PCI_MSI_GETSTATE, %o5 |
290 | ta HV_FAST_TRAP | |
291 | stx %o1, [%o2] | |
292 | retl | |
293 | mov %o0, %o0 | |
fefbbc73 | 294 | ENDPROC(pci_sun4v_msi_getstate) |
35a17eb6 DM |
295 | |
296 | /* %o0: devhandle | |
297 | * %o1: msinum | |
298 | * %o2: state | |
299 | * | |
300 | * returns %o0: status | |
301 | */ | |
fefbbc73 | 302 | ENTRY(pci_sun4v_msi_setstate) |
35a17eb6 DM |
303 | mov HV_FAST_PCI_MSI_SETSTATE, %o5 |
304 | ta HV_FAST_TRAP | |
305 | retl | |
306 | mov %o0, %o0 | |
fefbbc73 | 307 | ENDPROC(pci_sun4v_msi_setstate) |
35a17eb6 DM |
308 | |
309 | /* %o0: devhandle | |
310 | * %o1: msinum | |
311 | * %o2: &msiq | |
312 | * | |
313 | * returns %o0: status | |
314 | */ | |
fefbbc73 | 315 | ENTRY(pci_sun4v_msg_getmsiq) |
35a17eb6 DM |
316 | mov HV_FAST_PCI_MSG_GETMSIQ, %o5 |
317 | ta HV_FAST_TRAP | |
318 | stx %o1, [%o2] | |
319 | retl | |
320 | mov %o0, %o0 | |
fefbbc73 | 321 | ENDPROC(pci_sun4v_msg_getmsiq) |
35a17eb6 DM |
322 | |
323 | /* %o0: devhandle | |
324 | * %o1: msinum | |
325 | * %o2: msiq | |
326 | * | |
327 | * returns %o0: status | |
328 | */ | |
fefbbc73 | 329 | ENTRY(pci_sun4v_msg_setmsiq) |
35a17eb6 DM |
330 | mov HV_FAST_PCI_MSG_SETMSIQ, %o5 |
331 | ta HV_FAST_TRAP | |
332 | retl | |
333 | mov %o0, %o0 | |
fefbbc73 | 334 | ENDPROC(pci_sun4v_msg_setmsiq) |
35a17eb6 DM |
335 | |
336 | /* %o0: devhandle | |
337 | * %o1: msinum | |
338 | * %o2: &valid | |
339 | * | |
340 | * returns %o0: status | |
341 | */ | |
fefbbc73 | 342 | ENTRY(pci_sun4v_msg_getvalid) |
35a17eb6 DM |
343 | mov HV_FAST_PCI_MSG_GETVALID, %o5 |
344 | ta HV_FAST_TRAP | |
345 | stx %o1, [%o2] | |
346 | retl | |
347 | mov %o0, %o0 | |
fefbbc73 | 348 | ENDPROC(pci_sun4v_msg_getvalid) |
35a17eb6 DM |
349 | |
350 | /* %o0: devhandle | |
351 | * %o1: msinum | |
352 | * %o2: valid | |
353 | * | |
354 | * returns %o0: status | |
355 | */ | |
fefbbc73 | 356 | ENTRY(pci_sun4v_msg_setvalid) |
35a17eb6 DM |
357 | mov HV_FAST_PCI_MSG_SETVALID, %o5 |
358 | ta HV_FAST_TRAP | |
359 | retl | |
360 | mov %o0, %o0 | |
fefbbc73 | 361 | ENDPROC(pci_sun4v_msg_setvalid) |
35a17eb6 | 362 |