1 /* $NetBSD: vpci.c,v 1.13 2022/01/21 19:14:14 thorpej Exp $ */
2 /*
3 * Copyright (c) 2015 Palle Lyckegaard
4 * All rights reserved.
5 *
6 * Driver for virtual PCIe host bridge on sun4v systems.
7 *
8 * Based on NetBSD pyro and OpenBSD vpci drivers.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
23 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
25 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
27 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
28 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __KERNEL_RCSID(0, "$NetBSD: vpci.c,v 1.13 2022/01/21 19:14:14 thorpej Exp $");
34
35 #include <sys/param.h>
36 #include <sys/device.h>
37 #include <sys/errno.h>
38 #include <sys/malloc.h>
39 #include <sys/kmem.h>
40 #include <sys/systm.h>
41
42 #define _SPARC_BUS_DMA_PRIVATE
43 #include <sys/bus.h>
44 #include <machine/autoconf.h>
45
46 #ifdef DDB
47 #include <machine/db_machdep.h>
48 #endif
49
50 #include <dev/pci/pcivar.h>
51 #include <dev/pci/pcireg.h>
52
53 #include <sparc64/dev/iommureg.h>
54 #include <sparc64/dev/iommuvar.h>
55 #include <sparc64/dev/vpcivar.h>
56
57 #include <machine/hypervisor.h>
58
59 #ifdef DEBUG
60 #define VDB_PROM 0x01
61 #define VDB_BUSMAP 0x02
62 #define VDB_INTR 0x04
63 #define VDB_CONF_READ 0x08
64 #define VDB_CONF_WRITE 0x10
65 #define VDB_CONF VDB_CONF_READ|VDB_CONF_WRITE
66 int vpci_debug = 0x00;
67 #define DPRINTF(l, s) do { if (vpci_debug & l) printf s; } while (0)
68 #else
69 #define DPRINTF(l, s)
70 #endif
71
72 #if 0
73 FIXME
74 #define FIRE_RESET_GEN 0x7010
75
76 #define FIRE_RESET_GEN_XIR 0x0000000000000002L
77
78 #define FIRE_INTRMAP_INT_CNTRL_NUM_MASK 0x000003c0
79 #define FIRE_INTRMAP_INT_CNTRL_NUM0 0x00000040
80 #define FIRE_INTRMAP_INT_CNTRL_NUM1 0x00000080
81 #define FIRE_INTRMAP_INT_CNTRL_NUM2 0x00000100
82 #define FIRE_INTRMAP_INT_CNTRL_NUM3 0x00000200
83 #define FIRE_INTRMAP_T_JPID_SHIFT 26
84 #define FIRE_INTRMAP_T_JPID_MASK 0x7c000000
85
86 #define OBERON_INTRMAP_T_DESTID_SHIFT 21
87 #define OBERON_INTRMAP_T_DESTID_MASK 0x7fe00000
88 #endif
89
90 extern struct sparc_pci_chipset _sparc_pci_chipset;
91
92 int vpci_match(device_t, cfdata_t, void *);
93 void vpci_attach(device_t, device_t, void *);
94 int vpci_print(void *, const char *);
95
96 CFATTACH_DECL_NEW(vpci, sizeof(struct vpci_softc),
97 vpci_match, vpci_attach, NULL, NULL);
98
99 void vpci_init(struct vpci_softc */*FIXME, int*/, struct mainbus_attach_args *);
100 void vpci_init_iommu(struct vpci_softc *, struct vpci_pbm *);
101 pci_chipset_tag_t vpci_alloc_chipset(struct vpci_pbm *, int,
102 pci_chipset_tag_t);
103 bus_space_tag_t vpci_alloc_mem_tag(struct vpci_pbm *);
104 bus_space_tag_t vpci_alloc_io_tag(struct vpci_pbm *);
105 bus_space_tag_t vpci_alloc_config_tag(struct vpci_pbm *);
106 bus_space_tag_t vpci_alloc_bus_tag(struct vpci_pbm *, const char *, int);
107 bus_dma_tag_t vpci_alloc_dma_tag(struct vpci_pbm *);
108
109 #if 0
110 int vpci_conf_size(pci_chipset_tag_t, pcitag_t);
111 #endif
112 pcireg_t vpci_conf_read(pci_chipset_tag_t, pcitag_t, int);
113 void vpci_conf_write(pci_chipset_tag_t, pcitag_t, int, pcireg_t);
114
115 static void * vpci_pci_intr_establish(pci_chipset_tag_t pc,
116 pci_intr_handle_t ih, int level,
117 int (*func)(void *), void *arg);
118 void vpci_intr_ack(struct intrhand *);
119 int vpci_intr_map(const struct pci_attach_args *, pci_intr_handle_t *);
120 int vpci_bus_map(bus_space_tag_t, bus_addr_t,
121 bus_size_t, int, vaddr_t, bus_space_handle_t *);
122 paddr_t vpci_bus_mmap(bus_space_tag_t, bus_addr_t, off_t,
123 int, int);
124 void *vpci_intr_establish(bus_space_tag_t, int, int,
125 int (*)(void *), void *, void (*)(void));
126
127 int vpci_dmamap_create(bus_dma_tag_t, bus_size_t, int,
128 bus_size_t, bus_size_t, int, bus_dmamap_t *);
129
130 int
vpci_match(device_t parent,cfdata_t match,void * aux)131 vpci_match(device_t parent, cfdata_t match, void *aux)
132 {
133 struct mainbus_attach_args *ma = aux;
134 char compat[32];
135
136 if (strcmp(ma->ma_name, "pci") != 0)
137 return (0);
138
139 if (OF_getprop(ma->ma_node, "compatible", compat, sizeof(compat)) == -1)
140 return (0);
141
142 if (strcmp(compat, "SUNW,sun4v-pci") == 0)
143 return (1);
144
145 return (0);
146 }
147
148 void
vpci_attach(device_t parent,device_t self,void * aux)149 vpci_attach(device_t parent, device_t self, void *aux)
150 {
151 struct vpci_softc *sc = device_private(self);
152 struct mainbus_attach_args *ma = aux;
153 #if 0
154 FIXME
155 char *str;
156 int busa;
157 #endif
158 sc->sc_dev = self;
159 sc->sc_node = ma->ma_node;
160 sc->sc_dmat = ma->ma_dmatag;
161 sc->sc_bustag = ma->ma_bustag;
162 sc->sc_csr = ma->ma_reg[0].ur_paddr;
163 #if 0
164 FIXME
165 sc->sc_xbc = ma->ma_reg[1].ur_paddr;
166 sc->sc_ign = INTIGN(ma->ma_upaid << INTMAP_IGN_SHIFT);
167
168 if ((ma->ma_reg[0].ur_paddr & 0x00700000) == 0x00600000)
169 busa = 1;
170 else
171 busa = 0;
172 #endif
173 #if 0
174 FIXME
175 if (bus_space_map(sc->sc_bustag, sc->sc_csr,
176 ma->ma_reg[0].ur_len, BUS_SPACE_MAP_LINEAR, &sc->sc_csrh)) {
177 printf(": failed to map csr registers\n");
178 return;
179 }
180 #endif
181 #if 0
182 FIXME
183 if (bus_space_map(sc->sc_bustag, sc->sc_xbc,
184 ma->ma_reg[1].ur_len, 0, &sc->sc_xbch)) {
185 printf(": failed to map xbc registers\n");
186 return;
187 }
188
189 str = prom_getpropstring(ma->ma_node, "compatible");
190 if (strcmp(str, "pciex108e,80f8") == 0)
191 sc->sc_oberon = 1;
192
193 #endif
194 vpci_init(sc/*FIXME, busa*/, ma);
195 }
196
197 void
vpci_init(struct vpci_softc * sc,struct mainbus_attach_args * ma)198 vpci_init(struct vpci_softc *sc/*FIXME, int busa*/, struct mainbus_attach_args *ma)
199 {
200 struct vpci_pbm *pbm;
201 struct pcibus_attach_args pba;
202 int *busranges = NULL, nranges;
203
204 pbm = kmem_zalloc(sizeof(*pbm), KM_SLEEP);
205 pbm->vp_sc = sc;
206 pbm->vp_devhandle = (ma->ma_reg[0].ur_paddr >> 32) & 0x0fffffff;
207 #if 0
208 FiXME
209 pbm->vp_bus_a = busa;
210 #endif
211
212 if (prom_getprop(sc->sc_node, "ranges", sizeof(struct vpci_range),
213 &pbm->vp_nrange, (void **)&pbm->vp_range))
214 panic("vpci: can't get ranges");
215 for (int range = 0; range < pbm->vp_nrange; range++)
216 DPRINTF(VDB_PROM,
217 ("\nvpci_attach: range %d cspace %08x "
218 "child_hi %08x child_lo %08x phys_hi %08x phys_lo %08x "
219 "size_hi %08x size_lo %08x", range,
220 pbm->vp_range[range].cspace,
221 pbm->vp_range[range].child_hi,
222 pbm->vp_range[range].child_lo,
223 pbm->vp_range[range].phys_hi,
224 pbm->vp_range[range].phys_lo,
225 pbm->vp_range[range].size_hi,
226 pbm->vp_range[range].size_lo));
227
228 if (prom_getprop(sc->sc_node, "bus-range", sizeof(int), &nranges,
229 (void **)&busranges))
230 panic("vpci: can't get bus-range");
231 for (int range = 0; range < nranges; range++)
232 DPRINTF(VDB_PROM, ("\nvpci_attach: bus-range %d %08x", range, busranges[range]));
233
234 aprint_normal(": bus %d to %d", busranges[0], busranges[1]);
235
236 vpci_init_iommu(sc, pbm);
237
238 pbm->vp_memt = vpci_alloc_mem_tag(pbm);
239 pbm->vp_iot = vpci_alloc_io_tag(pbm);
240 pbm->vp_cfgt = vpci_alloc_config_tag(pbm);
241 pbm->vp_dmat = vpci_alloc_dma_tag(pbm);
242 pbm->vp_flags = (pbm->vp_memt ? PCI_FLAGS_MEM_OKAY : 0) |
243 (pbm->vp_iot ? PCI_FLAGS_IO_OKAY : 0);
244 #if 0
245 FIXME
246 if (bus_space_map(pbm->vp_cfgt, 0, 0x10000000, 0, &pbm->vp_cfgh))
247 panic("vpci: can't map config space");
248 #endif
249 pbm->vp_pc = vpci_alloc_chipset(pbm, sc->sc_node, &_sparc_pci_chipset);
250 pbm->vp_pc->spc_busmax = busranges[1];
251 pbm->vp_pc->spc_busnode = kmem_zalloc(sizeof(*pbm->vp_pc->spc_busnode),
252 KM_SLEEP);
253
254 #if 0
255 pbm->vp_pc->bustag = pbm->vp_cfgt;
256 pbm->vp_pc->bushandle = pbm->vp_cfgh;
257 #endif
258
259 bzero(&pba, sizeof(pba));
260 pba.pba_bus = busranges[0];
261 pba.pba_pc = pbm->vp_pc;
262 pba.pba_flags = pbm->vp_flags;
263 pba.pba_dmat = pbm->vp_dmat;
264 pba.pba_dmat64 = NULL; /* XXX */
265 pba.pba_memt = pbm->vp_memt;
266 pba.pba_iot = pbm->vp_iot;
267
268 free(busranges, M_DEVBUF);
269
270 config_found(sc->sc_dev, &pba, vpci_print,
271 CFARGS(.devhandle = device_handle(sc->sc_dev)));
272 }
273
274 void
vpci_init_iommu(struct vpci_softc * sc,struct vpci_pbm * pbm)275 vpci_init_iommu(struct vpci_softc *sc, struct vpci_pbm *pbm)
276 {
277 struct iommu_state *is = &pbm->vp_is;
278 int *vdma = NULL;
279 int nitem;
280 int tsbsize = 0;
281 u_int32_t iobase = -1;
282 u_int32_t iolen = 0;
283 char *name;
284
285 pbm->vp_sb.sb_is = is;
286 is->is_bustag = sc->sc_bustag;
287
288 if (bus_space_subregion(is->is_bustag, sc->sc_csrh,
289 0x40000, 0x100, &is->is_iommu)) {
290 panic("vpci: unable to create iommu handle");
291 }
292
293 /* Construct tsbsize */
294 if (!prom_getprop(sc->sc_node, "virtual-dma", sizeof(vdma), &nitem,
295 (void **)&vdma)) {
296 DPRINTF(VDB_BUSMAP, ("vpci_init_iommu: vdma[0]=0x%x vdma[1]=0x%x\n",
297 vdma[0], vdma[1]));
298 iobase = vdma[0];
299 iolen = vdma[1];
300 for (tsbsize = 8; (1 << (tsbsize+23)) > iolen;)
301 tsbsize--;
302 DPRINTF(VDB_BUSMAP, ("vpci_init_iommu: iobase=0x%x iolen = 0x%x tsbsize=0x%x\n",
303 iobase, iolen, tsbsize));
304 free(vdma, M_DEVBUF);
305 } else
306 panic("vpci_init_iommu: getprop virtual-dma failed");
307
308 aprint_normal(" vdma %x length %x\n", iobase, iolen);
309 aprint_naive("\n");
310
311 /* We have no STC. */
312 is->is_sb[0] = NULL;
313
314 name = kmem_asprintf("%s dvma", device_xname(sc->sc_dev));
315
316 /* Tell iommu how to set the TSB size. */
317 is->is_flags = IOMMU_TSBSIZE_IN_PTSB;
318
319 is->is_devhandle = pbm->vp_devhandle;
320 iommu_init(name, is, tsbsize, iobase);
321 }
322
323
324 int
vpci_print(void * aux,const char * p)325 vpci_print(void *aux, const char *p)
326 {
327 if (p == NULL)
328 return (UNCONF);
329 return (QUIET);
330 }
331
332 pcireg_t
vpci_conf_read(pci_chipset_tag_t pc,pcitag_t tag,int reg)333 vpci_conf_read(pci_chipset_tag_t pc, pcitag_t tag, int reg)
334 {
335 struct vpci_pbm *pbm = pc->cookie;
336 uint64_t error_flag, data;
337
338 int64_t hv_rc;
339 DPRINTF(VDB_CONF_READ, ("%s: tag %lx reg %x ", __func__, (long)tag, reg));
340 hv_rc = hv_pci_config_get(pbm->vp_devhandle, PCITAG_OFFSET(tag), reg, 4,
341 &error_flag, &data);
342 if (hv_rc != H_EOK)
343 panic("hv_pci_config_get() failed - rc = %" PRId64 "\n",
344 hv_rc);
345
346 pcireg_t val = error_flag ? (pcireg_t)~0 : data;
347 DPRINTF(VDB_CONF_READ, (" returning %08x\n", (u_int)val));
348 return val;
349 }
350
351 void
vpci_conf_write(pci_chipset_tag_t pc,pcitag_t tag,int reg,pcireg_t data)352 vpci_conf_write(pci_chipset_tag_t pc, pcitag_t tag, int reg, pcireg_t data)
353 {
354
355 struct vpci_pbm *pbm = pc->cookie;
356 uint64_t error_flag;
357 int64_t hv_rc;
358 DPRINTF(VDB_CONF_WRITE, ("%s: tag %lx; reg %x; data %x", __func__,
359 (long)tag, reg, (int)data));
360 hv_rc = hv_pci_config_put(pbm->vp_devhandle, PCITAG_OFFSET(tag), reg, 4,
361 data, &error_flag);
362 if (hv_rc != H_EOK)
363 panic("hv_pci_config_put() failed - rc = %" PRId64 "\n",
364 hv_rc);
365 DPRINTF(VDB_CONF_WRITE, (" .. done\n"));
366 }
367
368 /*
369 * Bus-specific interrupt mapping
370 */
371 int
vpci_intr_map(const struct pci_attach_args * pa,pci_intr_handle_t * ihp)372 vpci_intr_map(const struct pci_attach_args *pa, pci_intr_handle_t *ihp)
373 {
374 struct vpci_pbm *pbm = pa->pa_pc->cookie;
375 uint64_t devhandle = pbm->vp_devhandle;
376 uint64_t devino = INTINO(*ihp);
377 DPRINTF(VDB_INTR, ("vpci_intr_map(): devino 0x%lx\n", devino));
378 uint64_t sysino;
379 int err;
380
381 if (*ihp != (pci_intr_handle_t)-1) {
382 err = hv_intr_devino_to_sysino(devhandle, devino, &sysino);
383 if (err != H_EOK)
384 return (-1);
385
386 KASSERT(sysino == INTVEC(sysino));
387 *ihp = sysino;
388 DPRINTF(VDB_INTR, ("vpci_intr_map(): sysino 0x%lx\n", sysino));
389 return (0);
390 }
391
392 return (-1);
393 }
394
395 bus_space_tag_t
vpci_alloc_mem_tag(struct vpci_pbm * vp)396 vpci_alloc_mem_tag(struct vpci_pbm *vp)
397 {
398 return (vpci_alloc_bus_tag(vp, "mem", PCI_MEMORY_BUS_SPACE));
399 }
400
401 bus_space_tag_t
vpci_alloc_io_tag(struct vpci_pbm * vp)402 vpci_alloc_io_tag(struct vpci_pbm *vp)
403 {
404 return (vpci_alloc_bus_tag(vp, "io", PCI_IO_BUS_SPACE));
405 }
406
407 bus_space_tag_t
vpci_alloc_config_tag(struct vpci_pbm * vp)408 vpci_alloc_config_tag(struct vpci_pbm *vp)
409 {
410 return (vpci_alloc_bus_tag(vp, "cfg", PCI_CONFIG_BUS_SPACE));
411 }
412
413 bus_space_tag_t
vpci_alloc_bus_tag(struct vpci_pbm * pbm,const char * name,int type)414 vpci_alloc_bus_tag(struct vpci_pbm *pbm, const char *name, int type)
415 {
416 struct vpci_softc *sc = pbm->vp_sc;
417 struct sparc_bus_space_tag *bt;
418
419 bt = kmem_zalloc(sizeof(*bt), KM_SLEEP);
420
421 #if 0
422 snprintf(bt->name, sizeof(bt->name), "%s-pbm_%s(%d/%2.2x)",
423 device_xname(sc->sc_dev), name, ss, asi);
424 #endif
425
426 bt->cookie = pbm;
427 bt->parent = sc->sc_bustag;
428 bt->type = type;
429 bt->sparc_bus_map = vpci_bus_map;
430 bt->sparc_bus_mmap = vpci_bus_mmap;
431 bt->sparc_intr_establish = vpci_intr_establish;
432 return (bt);
433 }
434
435 bus_dma_tag_t
vpci_alloc_dma_tag(struct vpci_pbm * pbm)436 vpci_alloc_dma_tag(struct vpci_pbm *pbm)
437 {
438 struct vpci_softc *sc = pbm->vp_sc;
439 bus_dma_tag_t dt, pdt = sc->sc_dmat;
440
441 dt = kmem_zalloc(sizeof(*dt), KM_SLEEP);
442 dt->_cookie = pbm;
443 dt->_parent = pdt;
444 #define PCOPY(x) dt->x = pdt->x
445 dt->_dmamap_create = vpci_dmamap_create;
446 PCOPY(_dmamap_destroy);
447 dt->_dmamap_load = iommu_dvmamap_load;
448 PCOPY(_dmamap_load_mbuf);
449 PCOPY(_dmamap_load_uio);
450 dt->_dmamap_load_raw = iommu_dvmamap_load_raw;
451 dt->_dmamap_unload = iommu_dvmamap_unload;
452 dt->_dmamap_sync = iommu_dvmamap_sync;
453 dt->_dmamem_alloc = iommu_dvmamem_alloc;
454 dt->_dmamem_free = iommu_dvmamem_free;
455 dt->_dmamem_map = iommu_dvmamem_map;
456 dt->_dmamem_unmap = iommu_dvmamem_unmap;
457 PCOPY(_dmamem_mmap);
458 #undef PCOPY
459 return (dt);
460 }
461
462 pci_chipset_tag_t
vpci_alloc_chipset(struct vpci_pbm * pbm,int node,pci_chipset_tag_t pc)463 vpci_alloc_chipset(struct vpci_pbm *pbm, int node, pci_chipset_tag_t pc)
464 {
465 pci_chipset_tag_t npc;
466
467 npc = kmem_alloc(sizeof *npc, KM_SLEEP);
468 memcpy(npc, pc, sizeof *pc);
469 npc->cookie = pbm;
470 npc->rootnode = node;
471 npc->spc_conf_read = vpci_conf_read;
472 npc->spc_conf_write = vpci_conf_write;
473 npc->spc_intr_map = vpci_intr_map;
474 npc->spc_intr_establish = vpci_pci_intr_establish;
475 npc->spc_find_ino = NULL;
476 return (npc);
477 }
478
479 int
vpci_dmamap_create(bus_dma_tag_t t,bus_size_t size,int nsegments,bus_size_t maxsegsz,bus_size_t boundary,int flags,bus_dmamap_t * dmamp)480 vpci_dmamap_create(bus_dma_tag_t t, bus_size_t size,
481 int nsegments, bus_size_t maxsegsz, bus_size_t boundary, int flags,
482 bus_dmamap_t *dmamp)
483 {
484 struct vpci_pbm *pbm = t->_cookie;
485 int error;
486
487 error = bus_dmamap_create(t->_parent, size, nsegments, maxsegsz,
488 boundary, flags, dmamp);
489 if (error == 0)
490 (*dmamp)->_dm_cookie = &pbm->vp_sb;
491 return error;
492 }
493
494 int
vpci_bus_map(bus_space_tag_t t,bus_addr_t offset,bus_size_t size,int flags,vaddr_t unused,bus_space_handle_t * hp)495 vpci_bus_map(bus_space_tag_t t, bus_addr_t offset,
496 bus_size_t size, int flags, vaddr_t unused, bus_space_handle_t *hp)
497 {
498 struct vpci_pbm *pbm = t->cookie;
499 struct vpci_softc *sc = pbm->vp_sc;
500 int i, ss;
501
502 DPRINTF(VDB_BUSMAP, ("vpci_bus_map: type %d off %qx sz %qx flags %d",
503 t->type,
504 (unsigned long long)offset,
505 (unsigned long long)size,
506 flags));
507
508 ss = sparc_pci_childspace(t->type);
509 DPRINTF(VDB_BUSMAP, (" cspace %d\n", ss));
510
511 if (t->parent == 0 || t->parent->sparc_bus_map == 0) {
512 printf("\n_vpci_bus_map: invalid parent");
513 return (EINVAL);
514 }
515
516 for (i = 0; i < pbm->vp_nrange; i++) {
517 bus_addr_t paddr;
518 struct vpci_range *pr = &pbm->vp_range[i];
519
520 if (((pr->cspace >> 24) & 0x03) != ss)
521 continue;
522
523 paddr = BUS_ADDR(pr->phys_hi, pr->phys_lo + offset);
524 return ((*sc->sc_bustag->sparc_bus_map)(t, paddr, size,
525 flags, 0, hp));
526 }
527
528 return (EINVAL);
529 }
530
531 paddr_t
vpci_bus_mmap(bus_space_tag_t t,bus_addr_t paddr,off_t off,int prot,int flags)532 vpci_bus_mmap(bus_space_tag_t t, bus_addr_t paddr,
533 off_t off, int prot, int flags)
534 {
535 bus_addr_t offset = paddr;
536 struct vpci_pbm *pbm = t->cookie;
537 struct vpci_softc *sc = pbm->vp_sc;
538 int i, ss;
539
540 ss = sparc_pci_childspace(t->type);
541
542 DPRINTF(VDB_BUSMAP, ("vpci_bus_mmap: prot %d flags %d pa %qx\n",
543 prot, flags, (unsigned long long)paddr));
544
545 if (t->parent == 0 || t->parent->sparc_bus_mmap == 0) {
546 printf("\n_vpci_bus_mmap: invalid parent");
547 return (-1);
548 }
549
550 for (i = 0; i < pbm->vp_nrange; i++) {
551 struct vpci_range *pr = &pbm->vp_range[i];
552
553 if (((pr->cspace >> 24) & 0x03) != ss)
554 continue;
555
556 paddr = BUS_ADDR(pr->phys_hi, pr->phys_lo + offset);
557 return (bus_space_mmap(sc->sc_bustag, paddr, off,
558 prot, flags));
559 }
560
561 return (-1);
562 }
563
564 void *
vpci_intr_establish(bus_space_tag_t t,int ihandle,int level,int (* handler)(void *),void * arg,void (* fastvec)(void))565 vpci_intr_establish(bus_space_tag_t t, int ihandle, int level,
566 int (*handler)(void *), void *arg, void (*fastvec)(void) /* ignored */)
567 {
568 struct intrhand *ih = NULL;
569 int ino;
570
571 ino = INTINO(ihandle);
572 DPRINTF(VDB_INTR, ("%s: ih %lx; level %d ino %#x\n", __func__, (u_long)ihandle, level, ino));
573
574 if (level == IPL_NONE) {
575 level = INTLEV(ihandle);
576 printf(": IPL_NONE, setting IPL %d.\n", level);
577 }
578 if (level == IPL_NONE) {
579 level = 2;
580 printf(": no IPL, setting IPL 2.\n");
581 }
582
583 ino |= INTVEC(ihandle);
584 DPRINTF(VDB_INTR, ("%s: ih %lx; level %d ino %#x\n", __func__, (u_long)ihandle, level, ino));
585
586 ih = intrhand_alloc();
587
588 ih->ih_ivec = ihandle;
589 ih->ih_fun = handler;
590 ih->ih_arg = arg;
591 ih->ih_pil = level;
592 ih->ih_number = ino;
593 ih->ih_pending = 0;
594 ih->ih_ack = vpci_intr_ack;
595 intr_establish(ih->ih_pil, level != IPL_VM, ih);
596
597 uint64_t sysino = INTVEC(ihandle);
598 DPRINTF(VDB_INTR, ("vpci_intr_establish(): sysino 0x%lx\n", sysino));
599
600 int err;
601
602 err = hv_intr_settarget(sysino, cpus->ci_cpuid);
603 if (err != H_EOK)
604 printf("hv_intr_settarget(%lu, %u) failed - err = %d\n",
605 (long unsigned int)sysino, cpus->ci_cpuid, err);
606
607 /* Clear pending interrupts. */
608 err = hv_intr_setstate(sysino, INTR_IDLE);
609 if (err != H_EOK)
610 printf("hv_intr_setstate(%lu, INTR_IDLE) failed - err = %d\n",
611 (long unsigned int)sysino, err);
612
613 err = hv_intr_setenabled(sysino, INTR_ENABLED);
614 if (err != H_EOK)
615 printf("hv_intr_setenabled(%lu) failed - err = %d\n",
616 (long unsigned int)sysino, err);
617
618 DPRINTF(VDB_INTR, ("%s() returning %p\n", __func__, ih));
619 return (ih);
620 }
621
622 void
vpci_intr_ack(struct intrhand * ih)623 vpci_intr_ack(struct intrhand *ih)
624 {
625 int err;
626 err = hv_intr_setstate(ih->ih_number, INTR_IDLE);
627 if (err != H_EOK)
628 panic("%s(%u, INTR_IDLE) failed - err = %d\n",
629 __func__, ih->ih_number, err);
630 }
631
632 static void *
vpci_pci_intr_establish(pci_chipset_tag_t pc,pci_intr_handle_t ih,int level,int (* func)(void *),void * arg)633 vpci_pci_intr_establish(pci_chipset_tag_t pc, pci_intr_handle_t ih, int level,
634 int (*func)(void *), void *arg)
635 {
636 void *cookie;
637 struct vpci_pbm *pbm = (struct vpci_pbm *)pc->cookie;
638
639 DPRINTF(VDB_INTR, ("%s: ih %lx; level %d\n", __func__, (u_long)ih, level));
640 cookie = bus_intr_establish(pbm->vp_memt, ih, level, func, arg);
641
642 DPRINTF(VDB_INTR, ("%s: returning handle %p\n", __func__, cookie));
643 return (cookie);
644 }
645