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9ae1329e CLG |
1 | /* |
2 | * QEMU PowerPC PowerNV (POWER8) PHB3 model | |
3 | * | |
4 | * Copyright (c) 2014-2020, IBM Corporation. | |
5 | * | |
6 | * This code is licensed under the GPL version 2 or later. See the | |
7 | * COPYING file in the top-level directory. | |
8 | */ | |
9 | #include "qemu/osdep.h" | |
10 | #include "qemu/log.h" | |
11 | #include "qapi/visitor.h" | |
12 | #include "qapi/error.h" | |
9ae1329e CLG |
13 | #include "hw/pci-host/pnv_phb3_regs.h" |
14 | #include "hw/pci-host/pnv_phb3.h" | |
15 | #include "hw/pci/pcie_host.h" | |
16 | #include "hw/pci/pcie_port.h" | |
17 | #include "hw/ppc/pnv.h" | |
18 | #include "hw/irq.h" | |
19 | #include "hw/qdev-properties.h" | |
db1015e9 | 20 | #include "qom/object.h" |
a71cd51e | 21 | #include "sysemu/sysemu.h" |
9ae1329e CLG |
22 | |
23 | #define phb3_error(phb, fmt, ...) \ | |
24 | qemu_log_mask(LOG_GUEST_ERROR, "phb3[%d:%d]: " fmt "\n", \ | |
25 | (phb)->chip_id, (phb)->phb_id, ## __VA_ARGS__) | |
26 | ||
27 | static PCIDevice *pnv_phb3_find_cfg_dev(PnvPHB3 *phb) | |
28 | { | |
29 | PCIHostState *pci = PCI_HOST_BRIDGE(phb); | |
30 | uint64_t addr = phb->regs[PHB_CONFIG_ADDRESS >> 3]; | |
31 | uint8_t bus, devfn; | |
32 | ||
33 | if (!(addr >> 63)) { | |
34 | return NULL; | |
35 | } | |
36 | bus = (addr >> 52) & 0xff; | |
37 | devfn = (addr >> 44) & 0xff; | |
38 | ||
39 | return pci_find_device(pci->bus, bus, devfn); | |
40 | } | |
41 | ||
42 | /* | |
43 | * The CONFIG_DATA register expects little endian accesses, but as the | |
44 | * region is big endian, we have to swap the value. | |
45 | */ | |
46 | static void pnv_phb3_config_write(PnvPHB3 *phb, unsigned off, | |
47 | unsigned size, uint64_t val) | |
48 | { | |
49 | uint32_t cfg_addr, limit; | |
50 | PCIDevice *pdev; | |
51 | ||
52 | pdev = pnv_phb3_find_cfg_dev(phb); | |
53 | if (!pdev) { | |
54 | return; | |
55 | } | |
56 | cfg_addr = (phb->regs[PHB_CONFIG_ADDRESS >> 3] >> 32) & 0xffc; | |
57 | cfg_addr |= off; | |
58 | limit = pci_config_size(pdev); | |
59 | if (limit <= cfg_addr) { | |
60 | /* | |
61 | * conventional pci device can be behind pcie-to-pci bridge. | |
62 | * 256 <= addr < 4K has no effects. | |
63 | */ | |
64 | return; | |
65 | } | |
66 | switch (size) { | |
67 | case 1: | |
68 | break; | |
69 | case 2: | |
70 | val = bswap16(val); | |
71 | break; | |
72 | case 4: | |
73 | val = bswap32(val); | |
74 | break; | |
75 | default: | |
76 | g_assert_not_reached(); | |
77 | } | |
78 | pci_host_config_write_common(pdev, cfg_addr, limit, val, size); | |
79 | } | |
80 | ||
81 | static uint64_t pnv_phb3_config_read(PnvPHB3 *phb, unsigned off, | |
82 | unsigned size) | |
83 | { | |
84 | uint32_t cfg_addr, limit; | |
85 | PCIDevice *pdev; | |
86 | uint64_t val; | |
87 | ||
88 | pdev = pnv_phb3_find_cfg_dev(phb); | |
89 | if (!pdev) { | |
90 | return ~0ull; | |
91 | } | |
92 | cfg_addr = (phb->regs[PHB_CONFIG_ADDRESS >> 3] >> 32) & 0xffc; | |
93 | cfg_addr |= off; | |
94 | limit = pci_config_size(pdev); | |
95 | if (limit <= cfg_addr) { | |
96 | /* | |
97 | * conventional pci device can be behind pcie-to-pci bridge. | |
98 | * 256 <= addr < 4K has no effects. | |
99 | */ | |
100 | return ~0ull; | |
101 | } | |
102 | val = pci_host_config_read_common(pdev, cfg_addr, limit, size); | |
103 | switch (size) { | |
104 | case 1: | |
105 | return val; | |
106 | case 2: | |
107 | return bswap16(val); | |
108 | case 4: | |
109 | return bswap32(val); | |
110 | default: | |
111 | g_assert_not_reached(); | |
112 | } | |
113 | } | |
114 | ||
115 | static void pnv_phb3_check_m32(PnvPHB3 *phb) | |
116 | { | |
117 | uint64_t base, start, size; | |
118 | MemoryRegion *parent; | |
119 | PnvPBCQState *pbcq = &phb->pbcq; | |
120 | ||
121 | if (memory_region_is_mapped(&phb->mr_m32)) { | |
122 | memory_region_del_subregion(phb->mr_m32.container, &phb->mr_m32); | |
123 | } | |
124 | ||
125 | if (!(phb->regs[PHB_PHB3_CONFIG >> 3] & PHB_PHB3C_M32_EN)) { | |
126 | return; | |
127 | } | |
128 | ||
129 | /* Grab geometry from registers */ | |
130 | base = phb->regs[PHB_M32_BASE_ADDR >> 3]; | |
131 | start = phb->regs[PHB_M32_START_ADDR >> 3]; | |
132 | size = ~(phb->regs[PHB_M32_BASE_MASK >> 3] | 0xfffc000000000000ull) + 1; | |
133 | ||
134 | /* Check if it matches an enabled MMIO region in the PBCQ */ | |
135 | if (memory_region_is_mapped(&pbcq->mmbar0) && | |
136 | base >= pbcq->mmio0_base && | |
137 | (base + size) <= (pbcq->mmio0_base + pbcq->mmio0_size)) { | |
138 | parent = &pbcq->mmbar0; | |
139 | base -= pbcq->mmio0_base; | |
140 | } else if (memory_region_is_mapped(&pbcq->mmbar1) && | |
141 | base >= pbcq->mmio1_base && | |
142 | (base + size) <= (pbcq->mmio1_base + pbcq->mmio1_size)) { | |
143 | parent = &pbcq->mmbar1; | |
144 | base -= pbcq->mmio1_base; | |
145 | } else { | |
146 | return; | |
147 | } | |
148 | ||
149 | /* Create alias */ | |
150 | memory_region_init_alias(&phb->mr_m32, OBJECT(phb), "phb3-m32", | |
151 | &phb->pci_mmio, start, size); | |
152 | memory_region_add_subregion(parent, base, &phb->mr_m32); | |
153 | } | |
154 | ||
155 | static void pnv_phb3_check_m64(PnvPHB3 *phb, uint32_t index) | |
156 | { | |
157 | uint64_t base, start, size, m64; | |
158 | MemoryRegion *parent; | |
159 | PnvPBCQState *pbcq = &phb->pbcq; | |
160 | ||
161 | if (memory_region_is_mapped(&phb->mr_m64[index])) { | |
162 | /* Should we destroy it in RCU friendly way... ? */ | |
163 | memory_region_del_subregion(phb->mr_m64[index].container, | |
164 | &phb->mr_m64[index]); | |
165 | } | |
166 | ||
167 | /* Get table entry */ | |
168 | m64 = phb->ioda_M64BT[index]; | |
169 | ||
170 | if (!(m64 & IODA2_M64BT_ENABLE)) { | |
171 | return; | |
172 | } | |
173 | ||
174 | /* Grab geometry from registers */ | |
175 | base = GETFIELD(IODA2_M64BT_BASE, m64) << 20; | |
176 | if (m64 & IODA2_M64BT_SINGLE_PE) { | |
177 | base &= ~0x1ffffffull; | |
178 | } | |
179 | size = GETFIELD(IODA2_M64BT_MASK, m64) << 20; | |
180 | size |= 0xfffc000000000000ull; | |
181 | size = ~size + 1; | |
182 | start = base | (phb->regs[PHB_M64_UPPER_BITS >> 3]); | |
183 | ||
184 | /* Check if it matches an enabled MMIO region in the PBCQ */ | |
185 | if (memory_region_is_mapped(&pbcq->mmbar0) && | |
186 | base >= pbcq->mmio0_base && | |
187 | (base + size) <= (pbcq->mmio0_base + pbcq->mmio0_size)) { | |
188 | parent = &pbcq->mmbar0; | |
189 | base -= pbcq->mmio0_base; | |
190 | } else if (memory_region_is_mapped(&pbcq->mmbar1) && | |
191 | base >= pbcq->mmio1_base && | |
192 | (base + size) <= (pbcq->mmio1_base + pbcq->mmio1_size)) { | |
193 | parent = &pbcq->mmbar1; | |
194 | base -= pbcq->mmio1_base; | |
195 | } else { | |
196 | return; | |
197 | } | |
198 | ||
199 | /* Create alias */ | |
200 | memory_region_init_alias(&phb->mr_m64[index], OBJECT(phb), "phb3-m64", | |
201 | &phb->pci_mmio, start, size); | |
202 | memory_region_add_subregion(parent, base, &phb->mr_m64[index]); | |
203 | } | |
204 | ||
205 | static void pnv_phb3_check_all_m64s(PnvPHB3 *phb) | |
206 | { | |
207 | uint64_t i; | |
208 | ||
209 | for (i = 0; i < PNV_PHB3_NUM_M64; i++) { | |
210 | pnv_phb3_check_m64(phb, i); | |
211 | } | |
212 | } | |
213 | ||
214 | static void pnv_phb3_lxivt_write(PnvPHB3 *phb, unsigned idx, uint64_t val) | |
215 | { | |
216 | uint8_t server, prio; | |
217 | ||
218 | phb->ioda_LXIVT[idx] = val & (IODA2_LXIVT_SERVER | | |
219 | IODA2_LXIVT_PRIORITY | | |
220 | IODA2_LXIVT_NODE_ID); | |
221 | server = GETFIELD(IODA2_LXIVT_SERVER, val); | |
222 | prio = GETFIELD(IODA2_LXIVT_PRIORITY, val); | |
223 | ||
224 | /* | |
225 | * The low order 2 bits are the link pointer (Type II interrupts). | |
226 | * Shift back to get a valid IRQ server. | |
227 | */ | |
228 | server >>= 2; | |
229 | ||
230 | ics_write_xive(&phb->lsis, idx, server, prio, prio); | |
231 | } | |
232 | ||
233 | static uint64_t *pnv_phb3_ioda_access(PnvPHB3 *phb, | |
234 | unsigned *out_table, unsigned *out_idx) | |
235 | { | |
236 | uint64_t adreg = phb->regs[PHB_IODA_ADDR >> 3]; | |
237 | unsigned int index = GETFIELD(PHB_IODA_AD_TADR, adreg); | |
238 | unsigned int table = GETFIELD(PHB_IODA_AD_TSEL, adreg); | |
239 | unsigned int mask; | |
240 | uint64_t *tptr = NULL; | |
241 | ||
242 | switch (table) { | |
243 | case IODA2_TBL_LIST: | |
244 | tptr = phb->ioda_LIST; | |
245 | mask = 7; | |
246 | break; | |
247 | case IODA2_TBL_LXIVT: | |
248 | tptr = phb->ioda_LXIVT; | |
249 | mask = 7; | |
250 | break; | |
251 | case IODA2_TBL_IVC_CAM: | |
252 | case IODA2_TBL_RBA: | |
253 | mask = 31; | |
254 | break; | |
255 | case IODA2_TBL_RCAM: | |
256 | mask = 63; | |
257 | break; | |
258 | case IODA2_TBL_MRT: | |
259 | mask = 7; | |
260 | break; | |
261 | case IODA2_TBL_PESTA: | |
262 | case IODA2_TBL_PESTB: | |
263 | mask = 255; | |
264 | break; | |
265 | case IODA2_TBL_TVT: | |
266 | tptr = phb->ioda_TVT; | |
267 | mask = 511; | |
268 | break; | |
269 | case IODA2_TBL_TCAM: | |
270 | case IODA2_TBL_TDR: | |
271 | mask = 63; | |
272 | break; | |
273 | case IODA2_TBL_M64BT: | |
274 | tptr = phb->ioda_M64BT; | |
275 | mask = 15; | |
276 | break; | |
277 | case IODA2_TBL_M32DT: | |
278 | tptr = phb->ioda_MDT; | |
279 | mask = 255; | |
280 | break; | |
281 | case IODA2_TBL_PEEV: | |
282 | tptr = phb->ioda_PEEV; | |
283 | mask = 3; | |
284 | break; | |
285 | default: | |
286 | phb3_error(phb, "invalid IODA table %d", table); | |
287 | return NULL; | |
288 | } | |
289 | index &= mask; | |
290 | if (out_idx) { | |
291 | *out_idx = index; | |
292 | } | |
293 | if (out_table) { | |
294 | *out_table = table; | |
295 | } | |
296 | if (tptr) { | |
297 | tptr += index; | |
298 | } | |
299 | if (adreg & PHB_IODA_AD_AUTOINC) { | |
300 | index = (index + 1) & mask; | |
301 | adreg = SETFIELD(PHB_IODA_AD_TADR, adreg, index); | |
302 | } | |
303 | phb->regs[PHB_IODA_ADDR >> 3] = adreg; | |
304 | return tptr; | |
305 | } | |
306 | ||
307 | static uint64_t pnv_phb3_ioda_read(PnvPHB3 *phb) | |
308 | { | |
309 | unsigned table; | |
310 | uint64_t *tptr; | |
311 | ||
312 | tptr = pnv_phb3_ioda_access(phb, &table, NULL); | |
313 | if (!tptr) { | |
314 | /* Return 0 on unsupported tables, not ff's */ | |
315 | return 0; | |
316 | } | |
317 | return *tptr; | |
318 | } | |
319 | ||
320 | static void pnv_phb3_ioda_write(PnvPHB3 *phb, uint64_t val) | |
321 | { | |
322 | unsigned table, idx; | |
323 | uint64_t *tptr; | |
324 | ||
325 | tptr = pnv_phb3_ioda_access(phb, &table, &idx); | |
326 | if (!tptr) { | |
327 | return; | |
328 | } | |
329 | ||
330 | /* Handle side effects */ | |
331 | switch (table) { | |
332 | case IODA2_TBL_LXIVT: | |
333 | pnv_phb3_lxivt_write(phb, idx, val); | |
334 | break; | |
335 | case IODA2_TBL_M64BT: | |
336 | *tptr = val; | |
337 | pnv_phb3_check_m64(phb, idx); | |
338 | break; | |
339 | default: | |
340 | *tptr = val; | |
341 | } | |
342 | } | |
343 | ||
344 | /* | |
345 | * This is called whenever the PHB LSI, MSI source ID register or | |
346 | * the PBCQ irq filters are written. | |
347 | */ | |
348 | void pnv_phb3_remap_irqs(PnvPHB3 *phb) | |
349 | { | |
350 | ICSState *ics = &phb->lsis; | |
351 | uint32_t local, global, count, mask, comp; | |
352 | uint64_t baren; | |
353 | PnvPBCQState *pbcq = &phb->pbcq; | |
354 | ||
355 | /* | |
356 | * First check if we are enabled. Unlike real HW we don't separate | |
357 | * TX and RX so we enable if both are set | |
358 | */ | |
359 | baren = pbcq->nest_regs[PBCQ_NEST_BAR_EN]; | |
360 | if (!(baren & PBCQ_NEST_BAR_EN_IRSN_RX) || | |
361 | !(baren & PBCQ_NEST_BAR_EN_IRSN_TX)) { | |
362 | ics->offset = 0; | |
363 | return; | |
364 | } | |
365 | ||
366 | /* Grab local LSI source ID */ | |
367 | local = GETFIELD(PHB_LSI_SRC_ID, phb->regs[PHB_LSI_SOURCE_ID >> 3]) << 3; | |
368 | ||
369 | /* Grab global one and compare */ | |
370 | global = GETFIELD(PBCQ_NEST_LSI_SRC, | |
371 | pbcq->nest_regs[PBCQ_NEST_LSI_SRC_ID]) << 3; | |
372 | if (global != local) { | |
373 | /* | |
374 | * This happens during initialization, let's come back when we | |
375 | * are properly configured | |
376 | */ | |
377 | ics->offset = 0; | |
378 | return; | |
379 | } | |
380 | ||
381 | /* Get the base on the powerbus */ | |
382 | comp = GETFIELD(PBCQ_NEST_IRSN_COMP, | |
383 | pbcq->nest_regs[PBCQ_NEST_IRSN_COMPARE]); | |
384 | mask = GETFIELD(PBCQ_NEST_IRSN_COMP, | |
385 | pbcq->nest_regs[PBCQ_NEST_IRSN_MASK]); | |
386 | count = ((~mask) + 1) & 0x7ffff; | |
387 | phb->total_irq = count; | |
388 | ||
389 | /* Sanity checks */ | |
390 | if ((global + PNV_PHB3_NUM_LSI) > count) { | |
391 | phb3_error(phb, "LSIs out of reach: LSI base=%d total irq=%d", global, | |
392 | count); | |
393 | } | |
394 | ||
395 | if (count > 2048) { | |
396 | phb3_error(phb, "More interrupts than supported: %d", count); | |
397 | } | |
398 | ||
399 | if ((comp & mask) != comp) { | |
400 | phb3_error(phb, "IRQ compare bits not in mask: comp=0x%x mask=0x%x", | |
401 | comp, mask); | |
402 | comp &= mask; | |
403 | } | |
404 | /* Setup LSI offset */ | |
405 | ics->offset = comp + global; | |
406 | ||
407 | /* Setup MSI offset */ | |
408 | pnv_phb3_msi_update_config(&phb->msis, comp, count - PNV_PHB3_NUM_LSI); | |
409 | } | |
410 | ||
411 | static void pnv_phb3_lsi_src_id_write(PnvPHB3 *phb, uint64_t val) | |
412 | { | |
413 | /* Sanitize content */ | |
414 | val &= PHB_LSI_SRC_ID; | |
415 | phb->regs[PHB_LSI_SOURCE_ID >> 3] = val; | |
416 | pnv_phb3_remap_irqs(phb); | |
417 | } | |
418 | ||
419 | static void pnv_phb3_rtc_invalidate(PnvPHB3 *phb, uint64_t val) | |
420 | { | |
421 | PnvPhb3DMASpace *ds; | |
422 | ||
423 | /* Always invalidate all for now ... */ | |
424 | QLIST_FOREACH(ds, &phb->dma_spaces, list) { | |
425 | ds->pe_num = PHB_INVALID_PE; | |
426 | } | |
427 | } | |
428 | ||
429 | ||
430 | static void pnv_phb3_update_msi_regions(PnvPhb3DMASpace *ds) | |
431 | { | |
432 | uint64_t cfg = ds->phb->regs[PHB_PHB3_CONFIG >> 3]; | |
433 | ||
434 | if (cfg & PHB_PHB3C_32BIT_MSI_EN) { | |
435 | if (!memory_region_is_mapped(&ds->msi32_mr)) { | |
436 | memory_region_add_subregion(MEMORY_REGION(&ds->dma_mr), | |
437 | 0xffff0000, &ds->msi32_mr); | |
438 | } | |
439 | } else { | |
440 | if (memory_region_is_mapped(&ds->msi32_mr)) { | |
441 | memory_region_del_subregion(MEMORY_REGION(&ds->dma_mr), | |
442 | &ds->msi32_mr); | |
443 | } | |
444 | } | |
445 | ||
446 | if (cfg & PHB_PHB3C_64BIT_MSI_EN) { | |
447 | if (!memory_region_is_mapped(&ds->msi64_mr)) { | |
448 | memory_region_add_subregion(MEMORY_REGION(&ds->dma_mr), | |
449 | (1ull << 60), &ds->msi64_mr); | |
450 | } | |
451 | } else { | |
452 | if (memory_region_is_mapped(&ds->msi64_mr)) { | |
453 | memory_region_del_subregion(MEMORY_REGION(&ds->dma_mr), | |
454 | &ds->msi64_mr); | |
455 | } | |
456 | } | |
457 | } | |
458 | ||
459 | static void pnv_phb3_update_all_msi_regions(PnvPHB3 *phb) | |
460 | { | |
461 | PnvPhb3DMASpace *ds; | |
462 | ||
463 | QLIST_FOREACH(ds, &phb->dma_spaces, list) { | |
464 | pnv_phb3_update_msi_regions(ds); | |
465 | } | |
466 | } | |
467 | ||
468 | void pnv_phb3_reg_write(void *opaque, hwaddr off, uint64_t val, unsigned size) | |
469 | { | |
470 | PnvPHB3 *phb = opaque; | |
471 | bool changed; | |
472 | ||
473 | /* Special case configuration data */ | |
474 | if ((off & 0xfffc) == PHB_CONFIG_DATA) { | |
475 | pnv_phb3_config_write(phb, off & 0x3, size, val); | |
476 | return; | |
477 | } | |
478 | ||
479 | /* Other registers are 64-bit only */ | |
480 | if (size != 8 || off & 0x7) { | |
481 | phb3_error(phb, "Invalid register access, offset: 0x%"PRIx64" size: %d", | |
482 | off, size); | |
483 | return; | |
484 | } | |
485 | ||
486 | /* Handle masking & filtering */ | |
487 | switch (off) { | |
488 | case PHB_M64_UPPER_BITS: | |
489 | val &= 0xfffc000000000000ull; | |
490 | break; | |
491 | case PHB_Q_DMA_R: | |
492 | /* | |
493 | * This is enough logic to make SW happy but we aren't actually | |
494 | * quiescing the DMAs | |
495 | */ | |
496 | if (val & PHB_Q_DMA_R_AUTORESET) { | |
497 | val = 0; | |
498 | } else { | |
499 | val &= PHB_Q_DMA_R_QUIESCE_DMA; | |
500 | } | |
501 | break; | |
502 | /* LEM stuff */ | |
503 | case PHB_LEM_FIR_AND_MASK: | |
504 | phb->regs[PHB_LEM_FIR_ACCUM >> 3] &= val; | |
505 | return; | |
506 | case PHB_LEM_FIR_OR_MASK: | |
507 | phb->regs[PHB_LEM_FIR_ACCUM >> 3] |= val; | |
508 | return; | |
509 | case PHB_LEM_ERROR_AND_MASK: | |
510 | phb->regs[PHB_LEM_ERROR_MASK >> 3] &= val; | |
511 | return; | |
512 | case PHB_LEM_ERROR_OR_MASK: | |
513 | phb->regs[PHB_LEM_ERROR_MASK >> 3] |= val; | |
514 | return; | |
515 | case PHB_LEM_WOF: | |
516 | val = 0; | |
517 | break; | |
518 | } | |
519 | ||
520 | /* Record whether it changed */ | |
521 | changed = phb->regs[off >> 3] != val; | |
522 | ||
523 | /* Store in register cache first */ | |
524 | phb->regs[off >> 3] = val; | |
525 | ||
526 | /* Handle side effects */ | |
527 | switch (off) { | |
528 | case PHB_PHB3_CONFIG: | |
529 | if (changed) { | |
530 | pnv_phb3_update_all_msi_regions(phb); | |
531 | } | |
532 | /* fall through */ | |
533 | case PHB_M32_BASE_ADDR: | |
534 | case PHB_M32_BASE_MASK: | |
535 | case PHB_M32_START_ADDR: | |
536 | if (changed) { | |
537 | pnv_phb3_check_m32(phb); | |
538 | } | |
539 | break; | |
540 | case PHB_M64_UPPER_BITS: | |
541 | if (changed) { | |
542 | pnv_phb3_check_all_m64s(phb); | |
543 | } | |
544 | break; | |
545 | case PHB_LSI_SOURCE_ID: | |
546 | if (changed) { | |
547 | pnv_phb3_lsi_src_id_write(phb, val); | |
548 | } | |
549 | break; | |
550 | ||
551 | /* IODA table accesses */ | |
552 | case PHB_IODA_DATA0: | |
553 | pnv_phb3_ioda_write(phb, val); | |
554 | break; | |
555 | ||
556 | /* RTC invalidation */ | |
557 | case PHB_RTC_INVALIDATE: | |
558 | pnv_phb3_rtc_invalidate(phb, val); | |
559 | break; | |
560 | ||
561 | /* FFI request */ | |
562 | case PHB_FFI_REQUEST: | |
563 | pnv_phb3_msi_ffi(&phb->msis, val); | |
564 | break; | |
565 | ||
566 | /* Silent simple writes */ | |
567 | case PHB_CONFIG_ADDRESS: | |
568 | case PHB_IODA_ADDR: | |
569 | case PHB_TCE_KILL: | |
570 | case PHB_TCE_SPEC_CTL: | |
571 | case PHB_PEST_BAR: | |
572 | case PHB_PELTV_BAR: | |
573 | case PHB_RTT_BAR: | |
574 | case PHB_RBA_BAR: | |
575 | case PHB_IVT_BAR: | |
576 | case PHB_FFI_LOCK: | |
577 | case PHB_LEM_FIR_ACCUM: | |
578 | case PHB_LEM_ERROR_MASK: | |
579 | case PHB_LEM_ACTION0: | |
580 | case PHB_LEM_ACTION1: | |
581 | break; | |
582 | ||
583 | /* Noise on anything else */ | |
584 | default: | |
585 | qemu_log_mask(LOG_UNIMP, "phb3: reg_write 0x%"PRIx64"=%"PRIx64"\n", | |
586 | off, val); | |
587 | } | |
588 | } | |
589 | ||
590 | uint64_t pnv_phb3_reg_read(void *opaque, hwaddr off, unsigned size) | |
591 | { | |
592 | PnvPHB3 *phb = opaque; | |
593 | PCIHostState *pci = PCI_HOST_BRIDGE(phb); | |
594 | uint64_t val; | |
595 | ||
596 | if ((off & 0xfffc) == PHB_CONFIG_DATA) { | |
597 | return pnv_phb3_config_read(phb, off & 0x3, size); | |
598 | } | |
599 | ||
600 | /* Other registers are 64-bit only */ | |
601 | if (size != 8 || off & 0x7) { | |
602 | phb3_error(phb, "Invalid register access, offset: 0x%"PRIx64" size: %d", | |
603 | off, size); | |
604 | return ~0ull; | |
605 | } | |
606 | ||
607 | /* Default read from cache */ | |
608 | val = phb->regs[off >> 3]; | |
609 | ||
610 | switch (off) { | |
611 | /* Simulate venice DD2.0 */ | |
612 | case PHB_VERSION: | |
613 | return 0x000000a300000005ull; | |
614 | case PHB_PCIE_SYSTEM_CONFIG: | |
615 | return 0x441100fc30000000; | |
616 | ||
617 | /* IODA table accesses */ | |
618 | case PHB_IODA_DATA0: | |
619 | return pnv_phb3_ioda_read(phb); | |
620 | ||
621 | /* Link training always appears trained */ | |
622 | case PHB_PCIE_DLP_TRAIN_CTL: | |
623 | if (!pci_find_device(pci->bus, 1, 0)) { | |
624 | return 0; | |
625 | } | |
626 | return PHB_PCIE_DLP_INBAND_PRESENCE | PHB_PCIE_DLP_TC_DL_LINKACT; | |
627 | ||
628 | /* FFI Lock */ | |
629 | case PHB_FFI_LOCK: | |
630 | /* Set lock and return previous value */ | |
631 | phb->regs[off >> 3] |= PHB_FFI_LOCK_STATE; | |
632 | return val; | |
633 | ||
634 | /* DMA read sync: make it look like it's complete */ | |
635 | case PHB_DMARD_SYNC: | |
636 | return PHB_DMARD_SYNC_COMPLETE; | |
637 | ||
638 | /* Silent simple reads */ | |
639 | case PHB_PHB3_CONFIG: | |
640 | case PHB_M32_BASE_ADDR: | |
641 | case PHB_M32_BASE_MASK: | |
642 | case PHB_M32_START_ADDR: | |
643 | case PHB_CONFIG_ADDRESS: | |
644 | case PHB_IODA_ADDR: | |
645 | case PHB_RTC_INVALIDATE: | |
646 | case PHB_TCE_KILL: | |
647 | case PHB_TCE_SPEC_CTL: | |
648 | case PHB_PEST_BAR: | |
649 | case PHB_PELTV_BAR: | |
650 | case PHB_RTT_BAR: | |
651 | case PHB_RBA_BAR: | |
652 | case PHB_IVT_BAR: | |
653 | case PHB_M64_UPPER_BITS: | |
654 | case PHB_LEM_FIR_ACCUM: | |
655 | case PHB_LEM_ERROR_MASK: | |
656 | case PHB_LEM_ACTION0: | |
657 | case PHB_LEM_ACTION1: | |
658 | break; | |
659 | ||
660 | /* Noise on anything else */ | |
661 | default: | |
662 | qemu_log_mask(LOG_UNIMP, "phb3: reg_read 0x%"PRIx64"=%"PRIx64"\n", | |
663 | off, val); | |
664 | } | |
665 | return val; | |
666 | } | |
667 | ||
668 | static const MemoryRegionOps pnv_phb3_reg_ops = { | |
669 | .read = pnv_phb3_reg_read, | |
670 | .write = pnv_phb3_reg_write, | |
671 | .valid.min_access_size = 1, | |
672 | .valid.max_access_size = 8, | |
673 | .impl.min_access_size = 1, | |
674 | .impl.max_access_size = 8, | |
675 | .endianness = DEVICE_BIG_ENDIAN, | |
676 | }; | |
677 | ||
678 | static int pnv_phb3_map_irq(PCIDevice *pci_dev, int irq_num) | |
679 | { | |
680 | /* Check that out properly ... */ | |
681 | return irq_num & 3; | |
682 | } | |
683 | ||
684 | static void pnv_phb3_set_irq(void *opaque, int irq_num, int level) | |
685 | { | |
686 | PnvPHB3 *phb = opaque; | |
687 | ||
688 | /* LSI only ... */ | |
689 | if (irq_num > 3) { | |
690 | phb3_error(phb, "Unknown IRQ to set %d", irq_num); | |
691 | } | |
692 | qemu_set_irq(phb->qirqs[irq_num], level); | |
693 | } | |
694 | ||
695 | static bool pnv_phb3_resolve_pe(PnvPhb3DMASpace *ds) | |
696 | { | |
697 | uint64_t rtt, addr; | |
698 | uint16_t rte; | |
699 | int bus_num; | |
700 | ||
701 | /* Already resolved ? */ | |
702 | if (ds->pe_num != PHB_INVALID_PE) { | |
703 | return true; | |
704 | } | |
705 | ||
706 | /* We need to lookup the RTT */ | |
707 | rtt = ds->phb->regs[PHB_RTT_BAR >> 3]; | |
708 | if (!(rtt & PHB_RTT_BAR_ENABLE)) { | |
709 | phb3_error(ds->phb, "DMA with RTT BAR disabled !"); | |
710 | /* Set error bits ? fence ? ... */ | |
711 | return false; | |
712 | } | |
713 | ||
714 | /* Read RTE */ | |
715 | bus_num = pci_bus_num(ds->bus); | |
716 | addr = rtt & PHB_RTT_BASE_ADDRESS_MASK; | |
717 | addr += 2 * ((bus_num << 8) | ds->devfn); | |
ba06fe8a PMD |
718 | if (dma_memory_read(&address_space_memory, addr, &rte, |
719 | sizeof(rte), MEMTXATTRS_UNSPECIFIED)) { | |
9ae1329e CLG |
720 | phb3_error(ds->phb, "Failed to read RTT entry at 0x%"PRIx64, addr); |
721 | /* Set error bits ? fence ? ... */ | |
722 | return false; | |
723 | } | |
724 | rte = be16_to_cpu(rte); | |
725 | ||
726 | /* Fail upon reading of invalid PE# */ | |
727 | if (rte >= PNV_PHB3_NUM_PE) { | |
728 | phb3_error(ds->phb, "RTE for RID 0x%x invalid (%04x", ds->devfn, rte); | |
729 | /* Set error bits ? fence ? ... */ | |
730 | return false; | |
731 | } | |
732 | ds->pe_num = rte; | |
733 | return true; | |
734 | } | |
735 | ||
736 | static void pnv_phb3_translate_tve(PnvPhb3DMASpace *ds, hwaddr addr, | |
737 | bool is_write, uint64_t tve, | |
738 | IOMMUTLBEntry *tlb) | |
739 | { | |
740 | uint64_t tta = GETFIELD(IODA2_TVT_TABLE_ADDR, tve); | |
741 | int32_t lev = GETFIELD(IODA2_TVT_NUM_LEVELS, tve); | |
742 | uint32_t tts = GETFIELD(IODA2_TVT_TCE_TABLE_SIZE, tve); | |
743 | uint32_t tps = GETFIELD(IODA2_TVT_IO_PSIZE, tve); | |
744 | PnvPHB3 *phb = ds->phb; | |
745 | ||
746 | /* Invalid levels */ | |
747 | if (lev > 4) { | |
748 | phb3_error(phb, "Invalid #levels in TVE %d", lev); | |
749 | return; | |
750 | } | |
751 | ||
752 | /* IO Page Size of 0 means untranslated, else use TCEs */ | |
753 | if (tps == 0) { | |
754 | /* | |
755 | * We only support non-translate in top window. | |
756 | * | |
757 | * TODO: Venice/Murano support it on bottom window above 4G and | |
758 | * Naples suports it on everything | |
759 | */ | |
760 | if (!(tve & PPC_BIT(51))) { | |
761 | phb3_error(phb, "xlate for invalid non-translate TVE"); | |
762 | return; | |
763 | } | |
764 | /* TODO: Handle boundaries */ | |
765 | ||
766 | /* Use 4k pages like q35 ... for now */ | |
767 | tlb->iova = addr & 0xfffffffffffff000ull; | |
768 | tlb->translated_addr = addr & 0x0003fffffffff000ull; | |
769 | tlb->addr_mask = 0xfffull; | |
770 | tlb->perm = IOMMU_RW; | |
771 | } else { | |
772 | uint32_t tce_shift, tbl_shift, sh; | |
773 | uint64_t base, taddr, tce, tce_mask; | |
774 | ||
775 | /* TVE disabled ? */ | |
776 | if (tts == 0) { | |
777 | phb3_error(phb, "xlate for invalid translated TVE"); | |
778 | return; | |
779 | } | |
780 | ||
781 | /* Address bits per bottom level TCE entry */ | |
782 | tce_shift = tps + 11; | |
783 | ||
784 | /* Address bits per table level */ | |
785 | tbl_shift = tts + 8; | |
786 | ||
787 | /* Top level table base address */ | |
788 | base = tta << 12; | |
789 | ||
790 | /* Total shift to first level */ | |
791 | sh = tbl_shift * lev + tce_shift; | |
792 | ||
793 | /* TODO: Multi-level untested */ | |
83d2bea6 DHB |
794 | do { |
795 | lev--; | |
796 | ||
9ae1329e CLG |
797 | /* Grab the TCE address */ |
798 | taddr = base | (((addr >> sh) & ((1ul << tbl_shift) - 1)) << 3); | |
799 | if (dma_memory_read(&address_space_memory, taddr, &tce, | |
ba06fe8a | 800 | sizeof(tce), MEMTXATTRS_UNSPECIFIED)) { |
9ae1329e CLG |
801 | phb3_error(phb, "Failed to read TCE at 0x%"PRIx64, taddr); |
802 | return; | |
803 | } | |
804 | tce = be64_to_cpu(tce); | |
805 | ||
806 | /* Check permission for indirect TCE */ | |
807 | if ((lev >= 0) && !(tce & 3)) { | |
808 | phb3_error(phb, "Invalid indirect TCE at 0x%"PRIx64, taddr); | |
809 | phb3_error(phb, " xlate %"PRIx64":%c TVE=%"PRIx64, addr, | |
810 | is_write ? 'W' : 'R', tve); | |
811 | phb3_error(phb, " tta=%"PRIx64" lev=%d tts=%d tps=%d", | |
812 | tta, lev, tts, tps); | |
813 | return; | |
814 | } | |
815 | sh -= tbl_shift; | |
816 | base = tce & ~0xfffull; | |
83d2bea6 | 817 | } while (lev >= 0); |
9ae1329e CLG |
818 | |
819 | /* We exit the loop with TCE being the final TCE */ | |
9ae1329e CLG |
820 | if ((is_write & !(tce & 2)) || ((!is_write) && !(tce & 1))) { |
821 | phb3_error(phb, "TCE access fault at 0x%"PRIx64, taddr); | |
822 | phb3_error(phb, " xlate %"PRIx64":%c TVE=%"PRIx64, addr, | |
823 | is_write ? 'W' : 'R', tve); | |
824 | phb3_error(phb, " tta=%"PRIx64" lev=%d tts=%d tps=%d", | |
825 | tta, lev, tts, tps); | |
50c8e11a | 826 | return; |
9ae1329e | 827 | } |
50c8e11a FB |
828 | tce_mask = ~((1ull << tce_shift) - 1); |
829 | tlb->iova = addr & tce_mask; | |
830 | tlb->translated_addr = tce & tce_mask; | |
831 | tlb->addr_mask = ~tce_mask; | |
832 | tlb->perm = tce & 3; | |
9ae1329e CLG |
833 | } |
834 | } | |
835 | ||
836 | static IOMMUTLBEntry pnv_phb3_translate_iommu(IOMMUMemoryRegion *iommu, | |
837 | hwaddr addr, | |
838 | IOMMUAccessFlags flag, | |
839 | int iommu_idx) | |
840 | { | |
841 | PnvPhb3DMASpace *ds = container_of(iommu, PnvPhb3DMASpace, dma_mr); | |
842 | int tve_sel; | |
843 | uint64_t tve, cfg; | |
844 | IOMMUTLBEntry ret = { | |
845 | .target_as = &address_space_memory, | |
846 | .iova = addr, | |
847 | .translated_addr = 0, | |
848 | .addr_mask = ~(hwaddr)0, | |
849 | .perm = IOMMU_NONE, | |
850 | }; | |
851 | PnvPHB3 *phb = ds->phb; | |
852 | ||
853 | /* Resolve PE# */ | |
854 | if (!pnv_phb3_resolve_pe(ds)) { | |
855 | phb3_error(phb, "Failed to resolve PE# for bus @%p (%d) devfn 0x%x", | |
856 | ds->bus, pci_bus_num(ds->bus), ds->devfn); | |
857 | return ret; | |
858 | } | |
859 | ||
860 | /* Check top bits */ | |
861 | switch (addr >> 60) { | |
862 | case 00: | |
863 | /* DMA or 32-bit MSI ? */ | |
864 | cfg = ds->phb->regs[PHB_PHB3_CONFIG >> 3]; | |
865 | if ((cfg & PHB_PHB3C_32BIT_MSI_EN) && | |
866 | ((addr & 0xffffffffffff0000ull) == 0xffff0000ull)) { | |
867 | phb3_error(phb, "xlate on 32-bit MSI region"); | |
868 | return ret; | |
869 | } | |
870 | /* Choose TVE XXX Use PHB3 Control Register */ | |
871 | tve_sel = (addr >> 59) & 1; | |
872 | tve = ds->phb->ioda_TVT[ds->pe_num * 2 + tve_sel]; | |
873 | pnv_phb3_translate_tve(ds, addr, flag & IOMMU_WO, tve, &ret); | |
874 | break; | |
875 | case 01: | |
876 | phb3_error(phb, "xlate on 64-bit MSI region"); | |
877 | break; | |
878 | default: | |
879 | phb3_error(phb, "xlate on unsupported address 0x%"PRIx64, addr); | |
880 | } | |
881 | return ret; | |
882 | } | |
883 | ||
884 | #define TYPE_PNV_PHB3_IOMMU_MEMORY_REGION "pnv-phb3-iommu-memory-region" | |
8110fa1d EH |
885 | DECLARE_INSTANCE_CHECKER(IOMMUMemoryRegion, PNV_PHB3_IOMMU_MEMORY_REGION, |
886 | TYPE_PNV_PHB3_IOMMU_MEMORY_REGION) | |
9ae1329e CLG |
887 | |
888 | static void pnv_phb3_iommu_memory_region_class_init(ObjectClass *klass, | |
889 | void *data) | |
890 | { | |
891 | IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_CLASS(klass); | |
892 | ||
893 | imrc->translate = pnv_phb3_translate_iommu; | |
894 | } | |
895 | ||
896 | static const TypeInfo pnv_phb3_iommu_memory_region_info = { | |
897 | .parent = TYPE_IOMMU_MEMORY_REGION, | |
898 | .name = TYPE_PNV_PHB3_IOMMU_MEMORY_REGION, | |
899 | .class_init = pnv_phb3_iommu_memory_region_class_init, | |
900 | }; | |
901 | ||
902 | /* | |
903 | * MSI/MSIX memory region implementation. | |
904 | * The handler handles both MSI and MSIX. | |
905 | */ | |
906 | static void pnv_phb3_msi_write(void *opaque, hwaddr addr, | |
907 | uint64_t data, unsigned size) | |
908 | { | |
909 | PnvPhb3DMASpace *ds = opaque; | |
910 | ||
911 | /* Resolve PE# */ | |
912 | if (!pnv_phb3_resolve_pe(ds)) { | |
913 | phb3_error(ds->phb, "Failed to resolve PE# for bus @%p (%d) devfn 0x%x", | |
914 | ds->bus, pci_bus_num(ds->bus), ds->devfn); | |
915 | return; | |
916 | } | |
917 | ||
918 | pnv_phb3_msi_send(&ds->phb->msis, addr, data, ds->pe_num); | |
919 | } | |
920 | ||
921 | /* There is no .read as the read result is undefined by PCI spec */ | |
922 | static uint64_t pnv_phb3_msi_read(void *opaque, hwaddr addr, unsigned size) | |
923 | { | |
924 | PnvPhb3DMASpace *ds = opaque; | |
925 | ||
926 | phb3_error(ds->phb, "invalid read @ 0x%" HWADDR_PRIx, addr); | |
927 | return -1; | |
928 | } | |
929 | ||
930 | static const MemoryRegionOps pnv_phb3_msi_ops = { | |
931 | .read = pnv_phb3_msi_read, | |
932 | .write = pnv_phb3_msi_write, | |
933 | .endianness = DEVICE_LITTLE_ENDIAN | |
934 | }; | |
935 | ||
936 | static AddressSpace *pnv_phb3_dma_iommu(PCIBus *bus, void *opaque, int devfn) | |
937 | { | |
938 | PnvPHB3 *phb = opaque; | |
939 | PnvPhb3DMASpace *ds; | |
940 | ||
941 | QLIST_FOREACH(ds, &phb->dma_spaces, list) { | |
942 | if (ds->bus == bus && ds->devfn == devfn) { | |
943 | break; | |
944 | } | |
945 | } | |
946 | ||
947 | if (ds == NULL) { | |
b21e2380 | 948 | ds = g_new0(PnvPhb3DMASpace, 1); |
9ae1329e CLG |
949 | ds->bus = bus; |
950 | ds->devfn = devfn; | |
951 | ds->pe_num = PHB_INVALID_PE; | |
952 | ds->phb = phb; | |
953 | memory_region_init_iommu(&ds->dma_mr, sizeof(ds->dma_mr), | |
954 | TYPE_PNV_PHB3_IOMMU_MEMORY_REGION, | |
955 | OBJECT(phb), "phb3_iommu", UINT64_MAX); | |
956 | address_space_init(&ds->dma_as, MEMORY_REGION(&ds->dma_mr), | |
957 | "phb3_iommu"); | |
958 | memory_region_init_io(&ds->msi32_mr, OBJECT(phb), &pnv_phb3_msi_ops, | |
959 | ds, "msi32", 0x10000); | |
960 | memory_region_init_io(&ds->msi64_mr, OBJECT(phb), &pnv_phb3_msi_ops, | |
961 | ds, "msi64", 0x100000); | |
962 | pnv_phb3_update_msi_regions(ds); | |
963 | ||
964 | QLIST_INSERT_HEAD(&phb->dma_spaces, ds, list); | |
965 | } | |
966 | return &ds->dma_as; | |
967 | } | |
968 | ||
969 | static void pnv_phb3_instance_init(Object *obj) | |
970 | { | |
971 | PnvPHB3 *phb = PNV_PHB3(obj); | |
972 | ||
973 | QLIST_INIT(&phb->dma_spaces); | |
974 | ||
975 | /* LSI sources */ | |
9fc7fc4d | 976 | object_initialize_child(obj, "lsi", &phb->lsis, TYPE_ICS); |
9ae1329e CLG |
977 | |
978 | /* Default init ... will be fixed by HW inits */ | |
979 | phb->lsis.offset = 0; | |
980 | ||
981 | /* MSI sources */ | |
9fc7fc4d | 982 | object_initialize_child(obj, "msi", &phb->msis, TYPE_PHB3_MSI); |
9ae1329e CLG |
983 | |
984 | /* Power Bus Common Queue */ | |
9fc7fc4d | 985 | object_initialize_child(obj, "pbcq", &phb->pbcq, TYPE_PNV_PBCQ); |
9ae1329e | 986 | |
9ae1329e CLG |
987 | } |
988 | ||
989 | static void pnv_phb3_realize(DeviceState *dev, Error **errp) | |
990 | { | |
991 | PnvPHB3 *phb = PNV_PHB3(dev); | |
992 | PCIHostState *pci = PCI_HOST_BRIDGE(dev); | |
993 | PnvMachineState *pnv = PNV_MACHINE(qdev_get_machine()); | |
9ae1329e CLG |
994 | int i; |
995 | ||
a8fa95c7 | 996 | if (phb->phb_id >= PNV_CHIP_GET_CLASS(phb->chip)->num_phbs) { |
9ae1329e CLG |
997 | error_setg(errp, "invalid PHB index: %d", phb->phb_id); |
998 | return; | |
999 | } | |
1000 | ||
1001 | /* LSI sources */ | |
5325cc34 MA |
1002 | object_property_set_link(OBJECT(&phb->lsis), "xics", OBJECT(pnv), |
1003 | &error_abort); | |
1004 | object_property_set_int(OBJECT(&phb->lsis), "nr-irqs", PNV_PHB3_NUM_LSI, | |
9ae1329e | 1005 | &error_abort); |
668f62ec | 1006 | if (!qdev_realize(DEVICE(&phb->lsis), NULL, errp)) { |
9ae1329e CLG |
1007 | return; |
1008 | } | |
1009 | ||
1010 | for (i = 0; i < phb->lsis.nr_irqs; i++) { | |
1011 | ics_set_irq_type(&phb->lsis, i, true); | |
1012 | } | |
1013 | ||
1014 | phb->qirqs = qemu_allocate_irqs(ics_set_irq, &phb->lsis, phb->lsis.nr_irqs); | |
1015 | ||
1016 | /* MSI sources */ | |
5325cc34 MA |
1017 | object_property_set_link(OBJECT(&phb->msis), "phb", OBJECT(phb), |
1018 | &error_abort); | |
1019 | object_property_set_link(OBJECT(&phb->msis), "xics", OBJECT(pnv), | |
1020 | &error_abort); | |
1021 | object_property_set_int(OBJECT(&phb->msis), "nr-irqs", PHB3_MAX_MSI, | |
9ae1329e | 1022 | &error_abort); |
668f62ec | 1023 | if (!qdev_realize(DEVICE(&phb->msis), NULL, errp)) { |
9ae1329e CLG |
1024 | return; |
1025 | } | |
1026 | ||
1027 | /* Power Bus Common Queue */ | |
5325cc34 MA |
1028 | object_property_set_link(OBJECT(&phb->pbcq), "phb", OBJECT(phb), |
1029 | &error_abort); | |
668f62ec | 1030 | if (!qdev_realize(DEVICE(&phb->pbcq), NULL, errp)) { |
9ae1329e CLG |
1031 | return; |
1032 | } | |
1033 | ||
1034 | /* Controller Registers */ | |
1035 | memory_region_init_io(&phb->mr_regs, OBJECT(phb), &pnv_phb3_reg_ops, phb, | |
1036 | "phb3-regs", 0x1000); | |
1037 | ||
1038 | /* | |
1039 | * PHB3 doesn't support IO space. However, qemu gets very upset if | |
1040 | * we don't have an IO region to anchor IO BARs onto so we just | |
1041 | * initialize one which we never hook up to anything | |
1042 | */ | |
1043 | memory_region_init(&phb->pci_io, OBJECT(phb), "pci-io", 0x10000); | |
1044 | memory_region_init(&phb->pci_mmio, OBJECT(phb), "pci-mmio", | |
1045 | PCI_MMIO_TOTAL_SIZE); | |
1046 | ||
dec4e289 DHB |
1047 | pci->bus = pci_register_root_bus(dev, |
1048 | dev->id ? dev->id : NULL, | |
9ae1329e CLG |
1049 | pnv_phb3_set_irq, pnv_phb3_map_irq, phb, |
1050 | &phb->pci_mmio, &phb->pci_io, | |
1051 | 0, 4, TYPE_PNV_PHB3_ROOT_BUS); | |
1052 | ||
1053 | pci_setup_iommu(pci->bus, pnv_phb3_dma_iommu, phb); | |
1054 | ||
9c10d86f | 1055 | pnv_phb_attach_root_port(PCI_HOST_BRIDGE(phb), TYPE_PNV_PHB3_ROOT_PORT); |
9ae1329e CLG |
1056 | } |
1057 | ||
1058 | void pnv_phb3_update_regions(PnvPHB3 *phb) | |
1059 | { | |
1060 | PnvPBCQState *pbcq = &phb->pbcq; | |
1061 | ||
1062 | /* Unmap first always */ | |
1063 | if (memory_region_is_mapped(&phb->mr_regs)) { | |
1064 | memory_region_del_subregion(&pbcq->phbbar, &phb->mr_regs); | |
1065 | } | |
1066 | ||
1067 | /* Map registers if enabled */ | |
1068 | if (memory_region_is_mapped(&pbcq->phbbar)) { | |
1069 | /* TODO: We should use the PHB BAR 2 register but we don't ... */ | |
1070 | memory_region_add_subregion(&pbcq->phbbar, 0, &phb->mr_regs); | |
1071 | } | |
1072 | ||
1073 | /* Check/update m32 */ | |
1074 | if (memory_region_is_mapped(&phb->mr_m32)) { | |
1075 | pnv_phb3_check_m32(phb); | |
1076 | } | |
1077 | pnv_phb3_check_all_m64s(phb); | |
1078 | } | |
1079 | ||
1080 | static const char *pnv_phb3_root_bus_path(PCIHostState *host_bridge, | |
1081 | PCIBus *rootbus) | |
1082 | { | |
1083 | PnvPHB3 *phb = PNV_PHB3(host_bridge); | |
1084 | ||
1085 | snprintf(phb->bus_path, sizeof(phb->bus_path), "00%02x:%02x", | |
1086 | phb->chip_id, phb->phb_id); | |
1087 | return phb->bus_path; | |
1088 | } | |
1089 | ||
1090 | static Property pnv_phb3_properties[] = { | |
78d6b5d3 DHB |
1091 | DEFINE_PROP_UINT32("index", PnvPHB3, phb_id, 0), |
1092 | DEFINE_PROP_UINT32("chip-id", PnvPHB3, chip_id, 0), | |
1093 | DEFINE_PROP_LINK("chip", PnvPHB3, chip, TYPE_PNV_CHIP, PnvChip *), | |
1094 | DEFINE_PROP_END_OF_LIST(), | |
9ae1329e CLG |
1095 | }; |
1096 | ||
1097 | static void pnv_phb3_class_init(ObjectClass *klass, void *data) | |
1098 | { | |
1099 | PCIHostBridgeClass *hc = PCI_HOST_BRIDGE_CLASS(klass); | |
1100 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1101 | ||
1102 | hc->root_bus_path = pnv_phb3_root_bus_path; | |
1103 | dc->realize = pnv_phb3_realize; | |
1104 | device_class_set_props(dc, pnv_phb3_properties); | |
1105 | set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); | |
9c10d86f | 1106 | dc->user_creatable = false; |
9ae1329e CLG |
1107 | } |
1108 | ||
1109 | static const TypeInfo pnv_phb3_type_info = { | |
1110 | .name = TYPE_PNV_PHB3, | |
1111 | .parent = TYPE_PCIE_HOST_BRIDGE, | |
1112 | .instance_size = sizeof(PnvPHB3), | |
1113 | .class_init = pnv_phb3_class_init, | |
1114 | .instance_init = pnv_phb3_instance_init, | |
1115 | }; | |
1116 | ||
1117 | static void pnv_phb3_root_bus_class_init(ObjectClass *klass, void *data) | |
1118 | { | |
1119 | BusClass *k = BUS_CLASS(klass); | |
1120 | ||
1121 | /* | |
1122 | * PHB3 has only a single root complex. Enforce the limit on the | |
1123 | * parent bus | |
1124 | */ | |
1125 | k->max_dev = 1; | |
1126 | } | |
1127 | ||
1128 | static const TypeInfo pnv_phb3_root_bus_info = { | |
1129 | .name = TYPE_PNV_PHB3_ROOT_BUS, | |
1130 | .parent = TYPE_PCIE_BUS, | |
1131 | .class_init = pnv_phb3_root_bus_class_init, | |
1132 | .interfaces = (InterfaceInfo[]) { | |
1133 | { INTERFACE_PCIE_DEVICE }, | |
1134 | { } | |
1135 | }, | |
1136 | }; | |
1137 | ||
1138 | static void pnv_phb3_root_port_realize(DeviceState *dev, Error **errp) | |
1139 | { | |
1140 | PCIERootPortClass *rpc = PCIE_ROOT_PORT_GET_CLASS(dev); | |
392c2783 DHB |
1141 | PCIDevice *pci = PCI_DEVICE(dev); |
1142 | PCIBus *bus = pci_get_bus(pci); | |
1143 | PnvPHB3 *phb = NULL; | |
9ae1329e CLG |
1144 | Error *local_err = NULL; |
1145 | ||
392c2783 DHB |
1146 | phb = (PnvPHB3 *) object_dynamic_cast(OBJECT(bus->qbus.parent), |
1147 | TYPE_PNV_PHB3); | |
1148 | ||
1149 | if (!phb) { | |
1150 | error_setg(errp, | |
1151 | "pnv_phb3_root_port devices must be connected to pnv-phb3 buses"); | |
1152 | return; | |
1153 | } | |
1154 | ||
1155 | /* Set unique chassis/slot values for the root port */ | |
1156 | qdev_prop_set_uint8(&pci->qdev, "chassis", phb->chip_id); | |
1157 | qdev_prop_set_uint16(&pci->qdev, "slot", phb->phb_id); | |
1158 | ||
9ae1329e CLG |
1159 | rpc->parent_realize(dev, &local_err); |
1160 | if (local_err) { | |
1161 | error_propagate(errp, local_err); | |
1162 | return; | |
1163 | } | |
b34ce592 | 1164 | pci_config_set_interrupt_pin(pci->config, 0); |
9ae1329e CLG |
1165 | } |
1166 | ||
1167 | static void pnv_phb3_root_port_class_init(ObjectClass *klass, void *data) | |
1168 | { | |
1169 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1170 | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); | |
1171 | PCIERootPortClass *rpc = PCIE_ROOT_PORT_CLASS(klass); | |
1172 | ||
1173 | dc->desc = "IBM PHB3 PCIE Root Port"; | |
1174 | ||
1175 | device_class_set_parent_realize(dc, pnv_phb3_root_port_realize, | |
1176 | &rpc->parent_realize); | |
9c10d86f | 1177 | dc->user_creatable = false; |
9ae1329e CLG |
1178 | |
1179 | k->vendor_id = PCI_VENDOR_ID_IBM; | |
1180 | k->device_id = 0x03dc; | |
1181 | k->revision = 0; | |
1182 | ||
1183 | rpc->exp_offset = 0x48; | |
1184 | rpc->aer_offset = 0x100; | |
1185 | } | |
1186 | ||
1187 | static const TypeInfo pnv_phb3_root_port_info = { | |
1188 | .name = TYPE_PNV_PHB3_ROOT_PORT, | |
1189 | .parent = TYPE_PCIE_ROOT_PORT, | |
1190 | .instance_size = sizeof(PnvPHB3RootPort), | |
1191 | .class_init = pnv_phb3_root_port_class_init, | |
1192 | }; | |
1193 | ||
1194 | static void pnv_phb3_register_types(void) | |
1195 | { | |
1196 | type_register_static(&pnv_phb3_root_bus_info); | |
1197 | type_register_static(&pnv_phb3_root_port_info); | |
1198 | type_register_static(&pnv_phb3_type_info); | |
1199 | type_register_static(&pnv_phb3_iommu_memory_region_info); | |
1200 | } | |
1201 | ||
1202 | type_init(pnv_phb3_register_types) |