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20#include "qemu/osdep.h"
21#include "target/ppc/cpu.h"
22#include "qapi/error.h"
23#include "qemu/log.h"
24#include "qemu/module.h"
25#include "hw/irq.h"
26#include "hw/isa/isa.h"
27#include "hw/qdev-properties.h"
28#include "hw/ppc/pnv.h"
29#include "hw/ppc/pnv_lpc.h"
30#include "hw/ppc/pnv_xscom.h"
31#include "hw/ppc/fdt.h"
32
33#include <libfdt.h>
34
35enum {
36 ECCB_CTL = 0,
37 ECCB_RESET = 1,
38 ECCB_STAT = 2,
39 ECCB_DATA = 3,
40};
41
42
43#define OPB_MASTER_LS_ROUTE0 0x8
44#define OPB_MASTER_LS_ROUTE1 0xC
45#define OPB_MASTER_LS_IRQ_STAT 0x50
46#define OPB_MASTER_IRQ_LPC 0x00000800
47#define OPB_MASTER_LS_IRQ_MASK 0x54
48#define OPB_MASTER_LS_IRQ_POL 0x58
49#define OPB_MASTER_LS_IRQ_INPUT 0x5c
50
51
52#define LPC_HC_FW_SEG_IDSEL 0x24
53#define LPC_HC_FW_RD_ACC_SIZE 0x28
54#define LPC_HC_FW_RD_1B 0x00000000
55#define LPC_HC_FW_RD_2B 0x01000000
56#define LPC_HC_FW_RD_4B 0x02000000
57#define LPC_HC_FW_RD_16B 0x04000000
58#define LPC_HC_FW_RD_128B 0x07000000
59#define LPC_HC_IRQSER_CTRL 0x30
60#define LPC_HC_IRQSER_EN 0x80000000
61#define LPC_HC_IRQSER_QMODE 0x40000000
62#define LPC_HC_IRQSER_START_MASK 0x03000000
63#define LPC_HC_IRQSER_START_4CLK 0x00000000
64#define LPC_HC_IRQSER_START_6CLK 0x01000000
65#define LPC_HC_IRQSER_START_8CLK 0x02000000
66#define LPC_HC_IRQMASK 0x34
67#define LPC_HC_IRQSTAT 0x38
68#define LPC_HC_IRQ_SERIRQ0 0x80000000
69#define LPC_HC_IRQ_SERIRQ16 0x00008000
70#define LPC_HC_IRQ_SERIRQ_ALL 0xffff8000
71#define LPC_HC_IRQ_LRESET 0x00000400
72#define LPC_HC_IRQ_SYNC_ABNORM_ERR 0x00000080
73#define LPC_HC_IRQ_SYNC_NORESP_ERR 0x00000040
74#define LPC_HC_IRQ_SYNC_NORM_ERR 0x00000020
75#define LPC_HC_IRQ_SYNC_TIMEOUT_ERR 0x00000010
76#define LPC_HC_IRQ_SYNC_TARG_TAR_ERR 0x00000008
77#define LPC_HC_IRQ_SYNC_BM_TAR_ERR 0x00000004
78#define LPC_HC_IRQ_SYNC_BM0_REQ 0x00000002
79#define LPC_HC_IRQ_SYNC_BM1_REQ 0x00000001
80#define LPC_HC_ERROR_ADDRESS 0x40
81
82#define LPC_OPB_SIZE 0x100000000ull
83
84#define ISA_IO_SIZE 0x00010000
85#define ISA_MEM_SIZE 0x10000000
86#define ISA_FW_SIZE 0x10000000
87#define LPC_IO_OPB_ADDR 0xd0010000
88#define LPC_IO_OPB_SIZE 0x00010000
89#define LPC_MEM_OPB_ADDR 0xe0000000
90#define LPC_MEM_OPB_SIZE 0x10000000
91#define LPC_FW_OPB_ADDR 0xf0000000
92#define LPC_FW_OPB_SIZE 0x10000000
93
94#define LPC_OPB_REGS_OPB_ADDR 0xc0010000
95#define LPC_OPB_REGS_OPB_SIZE 0x00000060
96#define LPC_OPB_REGS_OPBA_ADDR 0xc0011000
97#define LPC_OPB_REGS_OPBA_SIZE 0x00000008
98#define LPC_HC_REGS_OPB_ADDR 0xc0012000
99#define LPC_HC_REGS_OPB_SIZE 0x00000100
100
101static int pnv_lpc_dt_xscom(PnvXScomInterface *dev, void *fdt, int xscom_offset)
102{
103 const char compat[] = "ibm,power8-lpc\0ibm,lpc";
104 char *name;
105 int offset;
106 uint32_t lpc_pcba = PNV_XSCOM_LPC_BASE;
107 uint32_t reg[] = {
108 cpu_to_be32(lpc_pcba),
109 cpu_to_be32(PNV_XSCOM_LPC_SIZE)
110 };
111
112 name = g_strdup_printf("isa@%x", lpc_pcba);
113 offset = fdt_add_subnode(fdt, xscom_offset, name);
114 _FDT(offset);
115 g_free(name);
116
117 _FDT((fdt_setprop(fdt, offset, "reg", reg, sizeof(reg))));
118 _FDT((fdt_setprop_cell(fdt, offset, "#address-cells", 2)));
119 _FDT((fdt_setprop_cell(fdt, offset, "#size-cells", 1)));
120 _FDT((fdt_setprop(fdt, offset, "compatible", compat, sizeof(compat))));
121 return 0;
122}
123
124
125int pnv_dt_lpc(PnvChip *chip, void *fdt, int root_offset, uint64_t lpcm_addr,
126 uint64_t lpcm_size)
127{
128 const char compat[] = "ibm,power9-lpcm-opb\0simple-bus";
129 const char lpc_compat[] = "ibm,power9-lpc\0ibm,lpc";
130 char *name;
131 int offset, lpcm_offset;
132 uint32_t opb_ranges[8] = { 0,
133 cpu_to_be32(lpcm_addr >> 32),
134 cpu_to_be32((uint32_t)lpcm_addr),
135 cpu_to_be32(lpcm_size / 2),
136 cpu_to_be32(lpcm_size / 2),
137 cpu_to_be32(lpcm_addr >> 32),
138 cpu_to_be32(lpcm_size / 2),
139 cpu_to_be32(lpcm_size / 2),
140 };
141 uint32_t opb_reg[4] = { cpu_to_be32(lpcm_addr >> 32),
142 cpu_to_be32((uint32_t)lpcm_addr),
143 cpu_to_be32(lpcm_size >> 32),
144 cpu_to_be32((uint32_t)lpcm_size),
145 };
146 uint32_t lpc_ranges[12] = { 0, 0,
147 cpu_to_be32(LPC_MEM_OPB_ADDR),
148 cpu_to_be32(LPC_MEM_OPB_SIZE),
149 cpu_to_be32(1), 0,
150 cpu_to_be32(LPC_IO_OPB_ADDR),
151 cpu_to_be32(LPC_IO_OPB_SIZE),
152 cpu_to_be32(3), 0,
153 cpu_to_be32(LPC_FW_OPB_ADDR),
154 cpu_to_be32(LPC_FW_OPB_SIZE),
155 };
156 uint32_t reg[2];
157
158
159
160
161 name = g_strdup_printf("lpcm-opb@%"PRIx64, lpcm_addr);
162 lpcm_offset = fdt_add_subnode(fdt, root_offset, name);
163 _FDT(lpcm_offset);
164 g_free(name);
165
166 _FDT((fdt_setprop(fdt, lpcm_offset, "reg", opb_reg, sizeof(opb_reg))));
167 _FDT((fdt_setprop_cell(fdt, lpcm_offset, "#address-cells", 1)));
168 _FDT((fdt_setprop_cell(fdt, lpcm_offset, "#size-cells", 1)));
169 _FDT((fdt_setprop(fdt, lpcm_offset, "compatible", compat, sizeof(compat))));
170 _FDT((fdt_setprop_cell(fdt, lpcm_offset, "ibm,chip-id", chip->chip_id)));
171 _FDT((fdt_setprop(fdt, lpcm_offset, "ranges", opb_ranges,
172 sizeof(opb_ranges))));
173
174
175
176
177 name = g_strdup_printf("opb-master@%x", LPC_OPB_REGS_OPB_ADDR);
178 offset = fdt_add_subnode(fdt, lpcm_offset, name);
179 _FDT(offset);
180 g_free(name);
181
182 reg[0] = cpu_to_be32(LPC_OPB_REGS_OPB_ADDR);
183 reg[1] = cpu_to_be32(LPC_OPB_REGS_OPB_SIZE);
184 _FDT((fdt_setprop(fdt, offset, "reg", reg, sizeof(reg))));
185 _FDT((fdt_setprop_string(fdt, offset, "compatible",
186 "ibm,power9-lpcm-opb-master")));
187
188
189
190
191 name = g_strdup_printf("opb-arbitrer@%x", LPC_OPB_REGS_OPBA_ADDR);
192 offset = fdt_add_subnode(fdt, lpcm_offset, name);
193 _FDT(offset);
194 g_free(name);
195
196 reg[0] = cpu_to_be32(LPC_OPB_REGS_OPBA_ADDR);
197 reg[1] = cpu_to_be32(LPC_OPB_REGS_OPBA_SIZE);
198 _FDT((fdt_setprop(fdt, offset, "reg", reg, sizeof(reg))));
199 _FDT((fdt_setprop_string(fdt, offset, "compatible",
200 "ibm,power9-lpcm-opb-arbiter")));
201
202
203
204
205 name = g_strdup_printf("lpc-controller@%x", LPC_HC_REGS_OPB_ADDR);
206 offset = fdt_add_subnode(fdt, lpcm_offset, name);
207 _FDT(offset);
208 g_free(name);
209
210 reg[0] = cpu_to_be32(LPC_HC_REGS_OPB_ADDR);
211 reg[1] = cpu_to_be32(LPC_HC_REGS_OPB_SIZE);
212 _FDT((fdt_setprop(fdt, offset, "reg", reg, sizeof(reg))));
213 _FDT((fdt_setprop_string(fdt, offset, "compatible",
214 "ibm,power9-lpc-controller")));
215
216 name = g_strdup_printf("lpc@0");
217 offset = fdt_add_subnode(fdt, lpcm_offset, name);
218 _FDT(offset);
219 g_free(name);
220 _FDT((fdt_setprop_cell(fdt, offset, "#address-cells", 2)));
221 _FDT((fdt_setprop_cell(fdt, offset, "#size-cells", 1)));
222 _FDT((fdt_setprop(fdt, offset, "compatible", lpc_compat,
223 sizeof(lpc_compat))));
224 _FDT((fdt_setprop(fdt, offset, "ranges", lpc_ranges,
225 sizeof(lpc_ranges))));
226
227 return 0;
228}
229
230
231
232
233
234
235
236
237static bool opb_read(PnvLpcController *lpc, uint32_t addr, uint8_t *data,
238 int sz)
239{
240
241 return !address_space_read(&lpc->opb_as, addr, MEMTXATTRS_UNSPECIFIED,
242 data, sz);
243}
244
245static bool opb_write(PnvLpcController *lpc, uint32_t addr, uint8_t *data,
246 int sz)
247{
248
249 return !address_space_write(&lpc->opb_as, addr, MEMTXATTRS_UNSPECIFIED,
250 data, sz);
251}
252
253#define ECCB_CTL_READ PPC_BIT(15)
254#define ECCB_CTL_SZ_LSH (63 - 7)
255#define ECCB_CTL_SZ_MASK PPC_BITMASK(4, 7)
256#define ECCB_CTL_ADDR_MASK PPC_BITMASK(32, 63)
257
258#define ECCB_STAT_OP_DONE PPC_BIT(52)
259#define ECCB_STAT_OP_ERR PPC_BIT(52)
260#define ECCB_STAT_RD_DATA_LSH (63 - 37)
261#define ECCB_STAT_RD_DATA_MASK (0xffffffff << ECCB_STAT_RD_DATA_LSH)
262
263static void pnv_lpc_do_eccb(PnvLpcController *lpc, uint64_t cmd)
264{
265
266 unsigned int sz = (cmd & ECCB_CTL_SZ_MASK) >> ECCB_CTL_SZ_LSH;
267 uint32_t opb_addr = cmd & ECCB_CTL_ADDR_MASK;
268 uint8_t data[8];
269 bool success;
270
271 if (sz > sizeof(data)) {
272 qemu_log_mask(LOG_GUEST_ERROR,
273 "ECCB: invalid operation at @0x%08x size %d\n", opb_addr, sz);
274 return;
275 }
276
277 if (cmd & ECCB_CTL_READ) {
278 success = opb_read(lpc, opb_addr, data, sz);
279 if (success) {
280 lpc->eccb_stat_reg = ECCB_STAT_OP_DONE |
281 (((uint64_t)data[0]) << 24 |
282 ((uint64_t)data[1]) << 16 |
283 ((uint64_t)data[2]) << 8 |
284 ((uint64_t)data[3])) << ECCB_STAT_RD_DATA_LSH;
285 } else {
286 lpc->eccb_stat_reg = ECCB_STAT_OP_DONE |
287 (0xffffffffull << ECCB_STAT_RD_DATA_LSH);
288 }
289 } else {
290 data[0] = lpc->eccb_data_reg >> 24;
291 data[1] = lpc->eccb_data_reg >> 16;
292 data[2] = lpc->eccb_data_reg >> 8;
293 data[3] = lpc->eccb_data_reg;
294
295 success = opb_write(lpc, opb_addr, data, sz);
296 lpc->eccb_stat_reg = ECCB_STAT_OP_DONE;
297 }
298
299}
300
301static uint64_t pnv_lpc_xscom_read(void *opaque, hwaddr addr, unsigned size)
302{
303 PnvLpcController *lpc = PNV_LPC(opaque);
304 uint32_t offset = addr >> 3;
305 uint64_t val = 0;
306
307 switch (offset & 3) {
308 case ECCB_CTL:
309 case ECCB_RESET:
310 val = 0;
311 break;
312 case ECCB_STAT:
313 val = lpc->eccb_stat_reg;
314 lpc->eccb_stat_reg = 0;
315 break;
316 case ECCB_DATA:
317 val = ((uint64_t)lpc->eccb_data_reg) << 32;
318 break;
319 }
320 return val;
321}
322
323static void pnv_lpc_xscom_write(void *opaque, hwaddr addr,
324 uint64_t val, unsigned size)
325{
326 PnvLpcController *lpc = PNV_LPC(opaque);
327 uint32_t offset = addr >> 3;
328
329 switch (offset & 3) {
330 case ECCB_CTL:
331 pnv_lpc_do_eccb(lpc, val);
332 break;
333 case ECCB_RESET:
334
335 break;
336 case ECCB_STAT:
337 break;
338 case ECCB_DATA:
339 lpc->eccb_data_reg = val >> 32;
340 break;
341 }
342}
343
344static const MemoryRegionOps pnv_lpc_xscom_ops = {
345 .read = pnv_lpc_xscom_read,
346 .write = pnv_lpc_xscom_write,
347 .valid.min_access_size = 8,
348 .valid.max_access_size = 8,
349 .impl.min_access_size = 8,
350 .impl.max_access_size = 8,
351 .endianness = DEVICE_BIG_ENDIAN,
352};
353
354static uint64_t pnv_lpc_mmio_read(void *opaque, hwaddr addr, unsigned size)
355{
356 PnvLpcController *lpc = PNV_LPC(opaque);
357 uint64_t val = 0;
358 uint32_t opb_addr = addr & ECCB_CTL_ADDR_MASK;
359 MemTxResult result;
360
361 switch (size) {
362 case 4:
363 val = address_space_ldl(&lpc->opb_as, opb_addr, MEMTXATTRS_UNSPECIFIED,
364 &result);
365 break;
366 case 1:
367 val = address_space_ldub(&lpc->opb_as, opb_addr, MEMTXATTRS_UNSPECIFIED,
368 &result);
369 break;
370 default:
371 qemu_log_mask(LOG_GUEST_ERROR, "OPB read failed at @0x%"
372 HWADDR_PRIx " invalid size %d\n", addr, size);
373 return 0;
374 }
375
376 if (result != MEMTX_OK) {
377 qemu_log_mask(LOG_GUEST_ERROR, "OPB read failed at @0x%"
378 HWADDR_PRIx "\n", addr);
379 }
380
381 return val;
382}
383
384static void pnv_lpc_mmio_write(void *opaque, hwaddr addr,
385 uint64_t val, unsigned size)
386{
387 PnvLpcController *lpc = PNV_LPC(opaque);
388 uint32_t opb_addr = addr & ECCB_CTL_ADDR_MASK;
389 MemTxResult result;
390
391 switch (size) {
392 case 4:
393 address_space_stl(&lpc->opb_as, opb_addr, val, MEMTXATTRS_UNSPECIFIED,
394 &result);
395 break;
396 case 1:
397 address_space_stb(&lpc->opb_as, opb_addr, val, MEMTXATTRS_UNSPECIFIED,
398 &result);
399 break;
400 default:
401 qemu_log_mask(LOG_GUEST_ERROR, "OPB write failed at @0x%"
402 HWADDR_PRIx " invalid size %d\n", addr, size);
403 return;
404 }
405
406 if (result != MEMTX_OK) {
407 qemu_log_mask(LOG_GUEST_ERROR, "OPB write failed at @0x%"
408 HWADDR_PRIx "\n", addr);
409 }
410}
411
412static const MemoryRegionOps pnv_lpc_mmio_ops = {
413 .read = pnv_lpc_mmio_read,
414 .write = pnv_lpc_mmio_write,
415 .impl = {
416 .min_access_size = 1,
417 .max_access_size = 4,
418 },
419 .endianness = DEVICE_BIG_ENDIAN,
420};
421
422static void pnv_lpc_eval_irqs(PnvLpcController *lpc)
423{
424 bool lpc_to_opb_irq = false;
425 PnvLpcClass *plc = PNV_LPC_GET_CLASS(lpc);
426
427
428 if (lpc->lpc_hc_irqser_ctrl & LPC_HC_IRQSER_EN) {
429 uint32_t irqs;
430
431 irqs = lpc->lpc_hc_irqstat & lpc->lpc_hc_irqmask;
432 lpc_to_opb_irq = (irqs != 0);
433 }
434
435
436
437
438 if (lpc_to_opb_irq) {
439 lpc->opb_irq_input |= OPB_MASTER_IRQ_LPC;
440 } else {
441 lpc->opb_irq_input &= ~OPB_MASTER_IRQ_LPC;
442 }
443
444
445 lpc->opb_irq_stat |= lpc->opb_irq_input & lpc->opb_irq_mask;
446
447
448 pnv_psi_irq_set(lpc->psi, plc->psi_irq, lpc->opb_irq_stat != 0);
449}
450
451static uint64_t lpc_hc_read(void *opaque, hwaddr addr, unsigned size)
452{
453 PnvLpcController *lpc = opaque;
454 uint64_t val = 0xfffffffffffffffful;
455
456 switch (addr) {
457 case LPC_HC_FW_SEG_IDSEL:
458 val = lpc->lpc_hc_fw_seg_idsel;
459 break;
460 case LPC_HC_FW_RD_ACC_SIZE:
461 val = lpc->lpc_hc_fw_rd_acc_size;
462 break;
463 case LPC_HC_IRQSER_CTRL:
464 val = lpc->lpc_hc_irqser_ctrl;
465 break;
466 case LPC_HC_IRQMASK:
467 val = lpc->lpc_hc_irqmask;
468 break;
469 case LPC_HC_IRQSTAT:
470 val = lpc->lpc_hc_irqstat;
471 break;
472 case LPC_HC_ERROR_ADDRESS:
473 val = lpc->lpc_hc_error_addr;
474 break;
475 default:
476 qemu_log_mask(LOG_UNIMP, "LPC HC Unimplemented register: 0x%"
477 HWADDR_PRIx "\n", addr);
478 }
479 return val;
480}
481
482static void lpc_hc_write(void *opaque, hwaddr addr, uint64_t val,
483 unsigned size)
484{
485 PnvLpcController *lpc = opaque;
486
487
488
489 switch (addr) {
490 case LPC_HC_FW_SEG_IDSEL:
491
492
493
494 lpc->lpc_hc_fw_seg_idsel = val;
495 break;
496 case LPC_HC_FW_RD_ACC_SIZE:
497 lpc->lpc_hc_fw_rd_acc_size = val;
498 break;
499 case LPC_HC_IRQSER_CTRL:
500 lpc->lpc_hc_irqser_ctrl = val;
501 pnv_lpc_eval_irqs(lpc);
502 break;
503 case LPC_HC_IRQMASK:
504 lpc->lpc_hc_irqmask = val;
505 pnv_lpc_eval_irqs(lpc);
506 break;
507 case LPC_HC_IRQSTAT:
508 lpc->lpc_hc_irqstat &= ~val;
509 pnv_lpc_eval_irqs(lpc);
510 break;
511 case LPC_HC_ERROR_ADDRESS:
512 break;
513 default:
514 qemu_log_mask(LOG_UNIMP, "LPC HC Unimplemented register: 0x%"
515 HWADDR_PRIx "\n", addr);
516 }
517}
518
519static const MemoryRegionOps lpc_hc_ops = {
520 .read = lpc_hc_read,
521 .write = lpc_hc_write,
522 .endianness = DEVICE_BIG_ENDIAN,
523 .valid = {
524 .min_access_size = 4,
525 .max_access_size = 4,
526 },
527 .impl = {
528 .min_access_size = 4,
529 .max_access_size = 4,
530 },
531};
532
533static uint64_t opb_master_read(void *opaque, hwaddr addr, unsigned size)
534{
535 PnvLpcController *lpc = opaque;
536 uint64_t val = 0xfffffffffffffffful;
537
538 switch (addr) {
539 case OPB_MASTER_LS_ROUTE0:
540 val = lpc->opb_irq_route0;
541 break;
542 case OPB_MASTER_LS_ROUTE1:
543 val = lpc->opb_irq_route1;
544 break;
545 case OPB_MASTER_LS_IRQ_STAT:
546 val = lpc->opb_irq_stat;
547 break;
548 case OPB_MASTER_LS_IRQ_MASK:
549 val = lpc->opb_irq_mask;
550 break;
551 case OPB_MASTER_LS_IRQ_POL:
552 val = lpc->opb_irq_pol;
553 break;
554 case OPB_MASTER_LS_IRQ_INPUT:
555 val = lpc->opb_irq_input;
556 break;
557 default:
558 qemu_log_mask(LOG_UNIMP, "OPBM: read on unimplemented register: 0x%"
559 HWADDR_PRIx "\n", addr);
560 }
561
562 return val;
563}
564
565static void opb_master_write(void *opaque, hwaddr addr,
566 uint64_t val, unsigned size)
567{
568 PnvLpcController *lpc = opaque;
569
570 switch (addr) {
571 case OPB_MASTER_LS_ROUTE0:
572 lpc->opb_irq_route0 = val;
573 break;
574 case OPB_MASTER_LS_ROUTE1:
575 lpc->opb_irq_route1 = val;
576 break;
577 case OPB_MASTER_LS_IRQ_STAT:
578 lpc->opb_irq_stat &= ~val;
579 pnv_lpc_eval_irqs(lpc);
580 break;
581 case OPB_MASTER_LS_IRQ_MASK:
582 lpc->opb_irq_mask = val;
583 pnv_lpc_eval_irqs(lpc);
584 break;
585 case OPB_MASTER_LS_IRQ_POL:
586 lpc->opb_irq_pol = val;
587 pnv_lpc_eval_irqs(lpc);
588 break;
589 case OPB_MASTER_LS_IRQ_INPUT:
590
591 break;
592 default:
593 qemu_log_mask(LOG_UNIMP, "OPBM: write on unimplemented register: 0x%"
594 HWADDR_PRIx " val=0x%08"PRIx64"\n", addr, val);
595 }
596}
597
598static const MemoryRegionOps opb_master_ops = {
599 .read = opb_master_read,
600 .write = opb_master_write,
601 .endianness = DEVICE_BIG_ENDIAN,
602 .valid = {
603 .min_access_size = 4,
604 .max_access_size = 4,
605 },
606 .impl = {
607 .min_access_size = 4,
608 .max_access_size = 4,
609 },
610};
611
612static void pnv_lpc_power8_realize(DeviceState *dev, Error **errp)
613{
614 PnvLpcController *lpc = PNV_LPC(dev);
615 PnvLpcClass *plc = PNV_LPC_GET_CLASS(dev);
616 Error *local_err = NULL;
617
618 plc->parent_realize(dev, &local_err);
619 if (local_err) {
620 error_propagate(errp, local_err);
621 return;
622 }
623
624
625 pnv_xscom_region_init(&lpc->xscom_regs, OBJECT(lpc),
626 &pnv_lpc_xscom_ops, lpc, "xscom-lpc",
627 PNV_XSCOM_LPC_SIZE);
628}
629
630static void pnv_lpc_power8_class_init(ObjectClass *klass, void *data)
631{
632 DeviceClass *dc = DEVICE_CLASS(klass);
633 PnvXScomInterfaceClass *xdc = PNV_XSCOM_INTERFACE_CLASS(klass);
634 PnvLpcClass *plc = PNV_LPC_CLASS(klass);
635
636 dc->desc = "PowerNV LPC Controller POWER8";
637
638 xdc->dt_xscom = pnv_lpc_dt_xscom;
639
640 plc->psi_irq = PSIHB_IRQ_LPC_I2C;
641
642 device_class_set_parent_realize(dc, pnv_lpc_power8_realize,
643 &plc->parent_realize);
644}
645
646static const TypeInfo pnv_lpc_power8_info = {
647 .name = TYPE_PNV8_LPC,
648 .parent = TYPE_PNV_LPC,
649 .instance_size = sizeof(PnvLpcController),
650 .class_init = pnv_lpc_power8_class_init,
651 .interfaces = (InterfaceInfo[]) {
652 { TYPE_PNV_XSCOM_INTERFACE },
653 { }
654 }
655};
656
657static void pnv_lpc_power9_realize(DeviceState *dev, Error **errp)
658{
659 PnvLpcController *lpc = PNV_LPC(dev);
660 PnvLpcClass *plc = PNV_LPC_GET_CLASS(dev);
661 Error *local_err = NULL;
662
663 plc->parent_realize(dev, &local_err);
664 if (local_err) {
665 error_propagate(errp, local_err);
666 return;
667 }
668
669
670 memory_region_init_io(&lpc->xscom_regs, OBJECT(lpc), &pnv_lpc_mmio_ops,
671 lpc, "lpcm", PNV9_LPCM_SIZE);
672}
673
674static void pnv_lpc_power9_class_init(ObjectClass *klass, void *data)
675{
676 DeviceClass *dc = DEVICE_CLASS(klass);
677 PnvLpcClass *plc = PNV_LPC_CLASS(klass);
678
679 dc->desc = "PowerNV LPC Controller POWER9";
680
681 plc->psi_irq = PSIHB9_IRQ_LPCHC;
682
683 device_class_set_parent_realize(dc, pnv_lpc_power9_realize,
684 &plc->parent_realize);
685}
686
687static const TypeInfo pnv_lpc_power9_info = {
688 .name = TYPE_PNV9_LPC,
689 .parent = TYPE_PNV_LPC,
690 .instance_size = sizeof(PnvLpcController),
691 .class_init = pnv_lpc_power9_class_init,
692};
693
694static void pnv_lpc_power10_class_init(ObjectClass *klass, void *data)
695{
696 DeviceClass *dc = DEVICE_CLASS(klass);
697
698 dc->desc = "PowerNV LPC Controller POWER10";
699}
700
701static const TypeInfo pnv_lpc_power10_info = {
702 .name = TYPE_PNV10_LPC,
703 .parent = TYPE_PNV9_LPC,
704 .class_init = pnv_lpc_power10_class_init,
705};
706
707static void pnv_lpc_realize(DeviceState *dev, Error **errp)
708{
709 PnvLpcController *lpc = PNV_LPC(dev);
710
711 assert(lpc->psi);
712
713
714 lpc->lpc_hc_fw_rd_acc_size = LPC_HC_FW_RD_4B;
715
716
717 memory_region_init(&lpc->opb_mr, OBJECT(dev), "lpc-opb", 0x100000000ull);
718 address_space_init(&lpc->opb_as, &lpc->opb_mr, "lpc-opb");
719
720
721
722
723
724 memory_region_init(&lpc->isa_io, OBJECT(dev), "isa-io", ISA_IO_SIZE);
725 memory_region_init(&lpc->isa_mem, OBJECT(dev), "isa-mem", ISA_MEM_SIZE);
726 memory_region_init(&lpc->isa_fw, OBJECT(dev), "isa-fw", ISA_FW_SIZE);
727
728
729 memory_region_init_alias(&lpc->opb_isa_io, OBJECT(dev), "lpc-isa-io",
730 &lpc->isa_io, 0, LPC_IO_OPB_SIZE);
731 memory_region_add_subregion(&lpc->opb_mr, LPC_IO_OPB_ADDR,
732 &lpc->opb_isa_io);
733 memory_region_init_alias(&lpc->opb_isa_mem, OBJECT(dev), "lpc-isa-mem",
734 &lpc->isa_mem, 0, LPC_MEM_OPB_SIZE);
735 memory_region_add_subregion(&lpc->opb_mr, LPC_MEM_OPB_ADDR,
736 &lpc->opb_isa_mem);
737 memory_region_init_alias(&lpc->opb_isa_fw, OBJECT(dev), "lpc-isa-fw",
738 &lpc->isa_fw, 0, LPC_FW_OPB_SIZE);
739 memory_region_add_subregion(&lpc->opb_mr, LPC_FW_OPB_ADDR,
740 &lpc->opb_isa_fw);
741
742
743 memory_region_init_io(&lpc->opb_master_regs, OBJECT(dev), &opb_master_ops,
744 lpc, "lpc-opb-master", LPC_OPB_REGS_OPB_SIZE);
745 memory_region_add_subregion(&lpc->opb_mr, LPC_OPB_REGS_OPB_ADDR,
746 &lpc->opb_master_regs);
747 memory_region_init_io(&lpc->lpc_hc_regs, OBJECT(dev), &lpc_hc_ops, lpc,
748 "lpc-hc", LPC_HC_REGS_OPB_SIZE);
749 memory_region_add_subregion(&lpc->opb_mr, LPC_HC_REGS_OPB_ADDR,
750 &lpc->lpc_hc_regs);
751}
752
753static Property pnv_lpc_properties[] = {
754 DEFINE_PROP_LINK("psi", PnvLpcController, psi, TYPE_PNV_PSI, PnvPsi *),
755 DEFINE_PROP_END_OF_LIST(),
756};
757
758static void pnv_lpc_class_init(ObjectClass *klass, void *data)
759{
760 DeviceClass *dc = DEVICE_CLASS(klass);
761
762 dc->realize = pnv_lpc_realize;
763 dc->desc = "PowerNV LPC Controller";
764 device_class_set_props(dc, pnv_lpc_properties);
765 dc->user_creatable = false;
766}
767
768static const TypeInfo pnv_lpc_info = {
769 .name = TYPE_PNV_LPC,
770 .parent = TYPE_DEVICE,
771 .class_init = pnv_lpc_class_init,
772 .class_size = sizeof(PnvLpcClass),
773 .abstract = true,
774};
775
776static void pnv_lpc_register_types(void)
777{
778 type_register_static(&pnv_lpc_info);
779 type_register_static(&pnv_lpc_power8_info);
780 type_register_static(&pnv_lpc_power9_info);
781 type_register_static(&pnv_lpc_power10_info);
782}
783
784type_init(pnv_lpc_register_types)
785
786
787
788
789
790
791
792
793
794static void pnv_lpc_isa_irq_handler_cpld(void *opaque, int n, int level)
795{
796 PnvMachineState *pnv = PNV_MACHINE(qdev_get_machine());
797 uint32_t old_state = pnv->cpld_irqstate;
798 PnvLpcController *lpc = PNV_LPC(opaque);
799
800 if (level) {
801 pnv->cpld_irqstate |= 1u << n;
802 } else {
803 pnv->cpld_irqstate &= ~(1u << n);
804 }
805
806 if (pnv->cpld_irqstate != old_state) {
807 pnv_psi_irq_set(lpc->psi, PSIHB_IRQ_EXTERNAL, pnv->cpld_irqstate != 0);
808 }
809}
810
811static void pnv_lpc_isa_irq_handler(void *opaque, int n, int level)
812{
813 PnvLpcController *lpc = PNV_LPC(opaque);
814
815
816 if (level) {
817 lpc->lpc_hc_irqstat |= LPC_HC_IRQ_SERIRQ0 >> n;
818 pnv_lpc_eval_irqs(lpc);
819 }
820}
821
822ISABus *pnv_lpc_isa_create(PnvLpcController *lpc, bool use_cpld, Error **errp)
823{
824 Error *local_err = NULL;
825 ISABus *isa_bus;
826 qemu_irq *irqs;
827 qemu_irq_handler handler;
828 PnvMachineState *pnv = PNV_MACHINE(qdev_get_machine());
829 bool hostboot_mode = !!pnv->fw_load_addr;
830
831
832
833
834
835 isa_bus = isa_bus_new(NULL, &lpc->isa_mem, &lpc->isa_io, &local_err);
836 if (local_err) {
837 error_propagate(errp, local_err);
838 return NULL;
839 }
840
841
842
843
844
845 if (use_cpld) {
846 handler = pnv_lpc_isa_irq_handler_cpld;
847 } else {
848 handler = pnv_lpc_isa_irq_handler;
849 }
850
851 irqs = qemu_allocate_irqs(handler, lpc, ISA_NUM_IRQS);
852
853 isa_bus_irqs(isa_bus, irqs);
854
855
856
857
858 memory_region_add_subregion(&lpc->isa_fw, PNOR_SPI_OFFSET,
859 &pnv->pnor->mmio);
860
861
862
863
864 if (!hostboot_mode) {
865 memory_region_set_enabled(&pnv->pnor->mmio, false);
866 }
867
868 return isa_bus;
869}
870
