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-rw-r--r--arch/sparc/kernel/pci_sun4v_asm.S362
1 files changed, 362 insertions, 0 deletions
diff --git a/arch/sparc/kernel/pci_sun4v_asm.S b/arch/sparc/kernel/pci_sun4v_asm.S
new file mode 100644
index 000000000000..e606d46c6815
--- /dev/null
+++ b/arch/sparc/kernel/pci_sun4v_asm.S
@@ -0,0 +1,362 @@
1/* pci_sun4v_asm: Hypervisor calls for PCI support.
2 *
3 * Copyright (C) 2006, 2008 David S. Miller <davem@davemloft.net>
4 */
5
6#include <linux/linkage.h>
7#include <asm/hypervisor.h>
8
9 /* %o0: devhandle
10 * %o1: tsbid
11 * %o2: num ttes
12 * %o3: io_attributes
13 * %o4: io_page_list phys address
14 *
15 * returns %o0: -status if status was non-zero, else
16 * %o0: num pages mapped
17 */
18ENTRY(pci_sun4v_iommu_map)
19 mov %o5, %g1
20 mov HV_FAST_PCI_IOMMU_MAP, %o5
21 ta HV_FAST_TRAP
22 brnz,pn %o0, 1f
23 sub %g0, %o0, %o0
24 mov %o1, %o0
251: retl
26 nop
27ENDPROC(pci_sun4v_iommu_map)
28
29 /* %o0: devhandle
30 * %o1: tsbid
31 * %o2: num ttes
32 *
33 * returns %o0: num ttes demapped
34 */
35ENTRY(pci_sun4v_iommu_demap)
36 mov HV_FAST_PCI_IOMMU_DEMAP, %o5
37 ta HV_FAST_TRAP
38 retl
39 mov %o1, %o0
40ENDPROC(pci_sun4v_iommu_demap)
41
42 /* %o0: devhandle
43 * %o1: tsbid
44 * %o2: &io_attributes
45 * %o3: &real_address
46 *
47 * returns %o0: status
48 */
49ENTRY(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
57ENDPROC(pci_sun4v_iommu_getmap)
58
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 */
69ENTRY(pci_sun4v_config_get)
70 mov HV_FAST_PCI_CONFIG_GET, %o5
71 ta HV_FAST_TRAP
72 brnz,a,pn %o1, 1f
73 mov -1, %o2
741: retl
75 mov %o2, %o0
76ENDPROC(pci_sun4v_config_get)
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 */
89ENTRY(pci_sun4v_config_put)
90 mov HV_FAST_PCI_CONFIG_PUT, %o5
91 ta HV_FAST_TRAP
92 brnz,a,pn %o1, 1f
93 mov -1, %o1
941: retl
95 mov %o1, %o0
96ENDPROC(pci_sun4v_config_put)
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 */
108ENTRY(pci_sun4v_msiq_conf)
109 mov HV_FAST_PCI_MSIQ_CONF, %o5
110 ta HV_FAST_TRAP
111 retl
112 mov %o0, %o0
113ENDPROC(pci_sun4v_msiq_conf)
114
115 /* %o0: devhandle
116 * %o1: msiqid
117 * %o2: &msiq_phys_addr
118 * %o3: &msiq_num_entries
119 *
120 * returns %o0: status
121 */
122ENTRY(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
130ENDPROC(pci_sun4v_msiq_info)
131
132 /* %o0: devhandle
133 * %o1: msiqid
134 * %o2: &valid
135 *
136 * returns %o0: status
137 */
138ENTRY(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
144ENDPROC(pci_sun4v_msiq_getvalid)
145
146 /* %o0: devhandle
147 * %o1: msiqid
148 * %o2: valid
149 *
150 * returns %o0: status
151 */
152ENTRY(pci_sun4v_msiq_setvalid)
153 mov HV_FAST_PCI_MSIQ_SETVALID, %o5
154 ta HV_FAST_TRAP
155 retl
156 mov %o0, %o0
157ENDPROC(pci_sun4v_msiq_setvalid)
158
159 /* %o0: devhandle
160 * %o1: msiqid
161 * %o2: &state
162 *
163 * returns %o0: status
164 */
165ENTRY(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
171ENDPROC(pci_sun4v_msiq_getstate)
172
173 /* %o0: devhandle
174 * %o1: msiqid
175 * %o2: state
176 *
177 * returns %o0: status
178 */
179ENTRY(pci_sun4v_msiq_setstate)
180 mov HV_FAST_PCI_MSIQ_SETSTATE, %o5
181 ta HV_FAST_TRAP
182 retl
183 mov %o0, %o0
184ENDPROC(pci_sun4v_msiq_setstate)
185
186 /* %o0: devhandle
187 * %o1: msiqid
188 * %o2: &head
189 *
190 * returns %o0: status
191 */
192ENTRY(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
198ENDPROC(pci_sun4v_msiq_gethead)
199
200 /* %o0: devhandle
201 * %o1: msiqid
202 * %o2: head
203 *
204 * returns %o0: status
205 */
206ENTRY(pci_sun4v_msiq_sethead)
207 mov HV_FAST_PCI_MSIQ_SETHEAD, %o5
208 ta HV_FAST_TRAP
209 retl
210 mov %o0, %o0
211ENDPROC(pci_sun4v_msiq_sethead)
212
213 /* %o0: devhandle
214 * %o1: msiqid
215 * %o2: &tail
216 *
217 * returns %o0: status
218 */
219ENTRY(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
225ENDPROC(pci_sun4v_msiq_gettail)
226
227 /* %o0: devhandle
228 * %o1: msinum
229 * %o2: &valid
230 *
231 * returns %o0: status
232 */
233ENTRY(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
239ENDPROC(pci_sun4v_msi_getvalid)
240
241 /* %o0: devhandle
242 * %o1: msinum
243 * %o2: valid
244 *
245 * returns %o0: status
246 */
247ENTRY(pci_sun4v_msi_setvalid)
248 mov HV_FAST_PCI_MSI_SETVALID, %o5
249 ta HV_FAST_TRAP
250 retl
251 mov %o0, %o0
252ENDPROC(pci_sun4v_msi_setvalid)
253
254 /* %o0: devhandle
255 * %o1: msinum
256 * %o2: &msiq
257 *
258 * returns %o0: status
259 */
260ENTRY(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
266ENDPROC(pci_sun4v_msi_getmsiq)
267
268 /* %o0: devhandle
269 * %o1: msinum
270 * %o2: msitype
271 * %o3: msiq
272 *
273 * returns %o0: status
274 */
275ENTRY(pci_sun4v_msi_setmsiq)
276 mov HV_FAST_PCI_MSI_SETMSIQ, %o5
277 ta HV_FAST_TRAP
278 retl
279 mov %o0, %o0
280ENDPROC(pci_sun4v_msi_setmsiq)
281
282 /* %o0: devhandle
283 * %o1: msinum
284 * %o2: &state
285 *
286 * returns %o0: status
287 */
288ENTRY(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
294ENDPROC(pci_sun4v_msi_getstate)
295
296 /* %o0: devhandle
297 * %o1: msinum
298 * %o2: state
299 *
300 * returns %o0: status
301 */
302ENTRY(pci_sun4v_msi_setstate)
303 mov HV_FAST_PCI_MSI_SETSTATE, %o5
304 ta HV_FAST_TRAP
305 retl
306 mov %o0, %o0
307ENDPROC(pci_sun4v_msi_setstate)
308
309 /* %o0: devhandle
310 * %o1: msinum
311 * %o2: &msiq
312 *
313 * returns %o0: status
314 */
315ENTRY(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
321ENDPROC(pci_sun4v_msg_getmsiq)
322
323 /* %o0: devhandle
324 * %o1: msinum
325 * %o2: msiq
326 *
327 * returns %o0: status
328 */
329ENTRY(pci_sun4v_msg_setmsiq)
330 mov HV_FAST_PCI_MSG_SETMSIQ, %o5
331 ta HV_FAST_TRAP
332 retl
333 mov %o0, %o0
334ENDPROC(pci_sun4v_msg_setmsiq)
335
336 /* %o0: devhandle
337 * %o1: msinum
338 * %o2: &valid
339 *
340 * returns %o0: status
341 */
342ENTRY(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
348ENDPROC(pci_sun4v_msg_getvalid)
349
350 /* %o0: devhandle
351 * %o1: msinum
352 * %o2: valid
353 *
354 * returns %o0: status
355 */
356ENTRY(pci_sun4v_msg_setvalid)
357 mov HV_FAST_PCI_MSG_SETVALID, %o5
358 ta HV_FAST_TRAP
359 retl
360 mov %o0, %o0
361ENDPROC(pci_sun4v_msg_setvalid)
362
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-25 09:38:22 -0500