-
Notifications
You must be signed in to change notification settings - Fork 5.3k
/
e500.c
1298 lines (1122 loc) · 43.9 KB
/
e500.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* QEMU PowerPC e500-based platforms
*
* Copyright (C) 2009 Freescale Semiconductor, Inc. All rights reserved.
*
* Author: Yu Liu, <yu.liu@freescale.com>
*
* This file is derived from hw/ppc440_bamboo.c,
* the copyright for that material belongs to the original owners.
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include "qemu/osdep.h"
#include "qemu/datadir.h"
#include "qemu/units.h"
#include "qemu/guest-random.h"
#include "qapi/error.h"
#include "e500.h"
#include "e500-ccsr.h"
#include "net/net.h"
#include "qemu/config-file.h"
#include "hw/block/flash.h"
#include "hw/char/serial.h"
#include "hw/pci/pci.h"
#include "sysemu/block-backend-io.h"
#include "sysemu/sysemu.h"
#include "sysemu/kvm.h"
#include "sysemu/reset.h"
#include "sysemu/runstate.h"
#include "kvm_ppc.h"
#include "sysemu/device_tree.h"
#include "hw/ppc/openpic.h"
#include "hw/ppc/openpic_kvm.h"
#include "hw/ppc/ppc.h"
#include "hw/qdev-properties.h"
#include "hw/loader.h"
#include "elf.h"
#include "hw/sysbus.h"
#include "qemu/host-utils.h"
#include "qemu/option.h"
#include "hw/pci-host/ppce500.h"
#include "qemu/error-report.h"
#include "hw/platform-bus.h"
#include "hw/net/fsl_etsec/etsec.h"
#include "hw/i2c/i2c.h"
#include "hw/irq.h"
#include "hw/sd/sdhci.h"
#include "hw/misc/unimp.h"
#define EPAPR_MAGIC (0x45504150)
#define DTC_LOAD_PAD 0x1800000
#define DTC_PAD_MASK 0xFFFFF
#define DTB_MAX_SIZE (8 * MiB)
#define INITRD_LOAD_PAD 0x2000000
#define INITRD_PAD_MASK 0xFFFFFF
#define RAM_SIZES_ALIGN (64 * MiB)
/* TODO: parameterize */
#define MPC8544_CCSRBAR_SIZE 0x00100000ULL
#define MPC8544_MPIC_REGS_OFFSET 0x40000ULL
#define MPC8544_MSI_REGS_OFFSET 0x41600ULL
#define MPC8544_SERIAL0_REGS_OFFSET 0x4500ULL
#define MPC8544_SERIAL1_REGS_OFFSET 0x4600ULL
#define MPC8544_PCI_REGS_OFFSET 0x8000ULL
#define MPC8544_PCI_REGS_SIZE 0x1000ULL
#define MPC85XX_ESDHC_REGS_OFFSET 0x2e000ULL
#define MPC85XX_ESDHC_REGS_SIZE 0x1000ULL
#define MPC8544_UTIL_OFFSET 0xe0000ULL
#define MPC8XXX_GPIO_OFFSET 0x000FF000ULL
#define MPC8544_I2C_REGS_OFFSET 0x3000ULL
#define MPC8XXX_GPIO_IRQ 47
#define MPC8544_I2C_IRQ 43
#define MPC85XX_ESDHC_IRQ 72
#define RTC_REGS_OFFSET 0x68
#define PLATFORM_CLK_FREQ_HZ (400 * 1000 * 1000)
struct boot_info
{
uint32_t dt_base;
uint32_t dt_size;
uint32_t entry;
};
static uint32_t *pci_map_create(void *fdt, uint32_t mpic, int first_slot,
int nr_slots, int *len)
{
int i = 0;
int slot;
int pci_irq;
int host_irq;
int last_slot = first_slot + nr_slots;
uint32_t *pci_map;
*len = nr_slots * 4 * 7 * sizeof(uint32_t);
pci_map = g_malloc(*len);
for (slot = first_slot; slot < last_slot; slot++) {
for (pci_irq = 0; pci_irq < 4; pci_irq++) {
pci_map[i++] = cpu_to_be32(slot << 11);
pci_map[i++] = cpu_to_be32(0x0);
pci_map[i++] = cpu_to_be32(0x0);
pci_map[i++] = cpu_to_be32(pci_irq + 1);
pci_map[i++] = cpu_to_be32(mpic);
host_irq = ppce500_pci_map_irq_slot(slot, pci_irq);
pci_map[i++] = cpu_to_be32(host_irq + 1);
pci_map[i++] = cpu_to_be32(0x1);
}
}
assert((i * sizeof(uint32_t)) == *len);
return pci_map;
}
static void dt_serial_create(void *fdt, unsigned long long offset,
const char *soc, const char *mpic,
const char *alias, int idx, bool defcon)
{
char *ser;
ser = g_strdup_printf("%s/serial@%llx", soc, offset);
qemu_fdt_add_subnode(fdt, ser);
qemu_fdt_setprop_string(fdt, ser, "device_type", "serial");
qemu_fdt_setprop_string(fdt, ser, "compatible", "ns16550");
qemu_fdt_setprop_cells(fdt, ser, "reg", offset, 0x100);
qemu_fdt_setprop_cell(fdt, ser, "cell-index", idx);
qemu_fdt_setprop_cell(fdt, ser, "clock-frequency", PLATFORM_CLK_FREQ_HZ);
qemu_fdt_setprop_cells(fdt, ser, "interrupts", 42, 2);
qemu_fdt_setprop_phandle(fdt, ser, "interrupt-parent", mpic);
qemu_fdt_setprop_string(fdt, "/aliases", alias, ser);
if (defcon) {
/*
* "linux,stdout-path" and "stdout" properties are deprecated by linux
* kernel. New platforms should only use the "stdout-path" property. Set
* the new property and continue using older property to remain
* compatible with the existing firmware.
*/
qemu_fdt_setprop_string(fdt, "/chosen", "linux,stdout-path", ser);
qemu_fdt_setprop_string(fdt, "/chosen", "stdout-path", ser);
}
g_free(ser);
}
static void create_dt_mpc8xxx_gpio(void *fdt, const char *soc, const char *mpic)
{
hwaddr mmio0 = MPC8XXX_GPIO_OFFSET;
int irq0 = MPC8XXX_GPIO_IRQ;
gchar *node = g_strdup_printf("%s/gpio@%"PRIx64, soc, mmio0);
gchar *poweroff = g_strdup_printf("%s/power-off", soc);
int gpio_ph;
qemu_fdt_add_subnode(fdt, node);
qemu_fdt_setprop_string(fdt, node, "compatible", "fsl,qoriq-gpio");
qemu_fdt_setprop_cells(fdt, node, "reg", mmio0, 0x1000);
qemu_fdt_setprop_cells(fdt, node, "interrupts", irq0, 0x2);
qemu_fdt_setprop_phandle(fdt, node, "interrupt-parent", mpic);
qemu_fdt_setprop_cells(fdt, node, "#gpio-cells", 2);
qemu_fdt_setprop(fdt, node, "gpio-controller", NULL, 0);
gpio_ph = qemu_fdt_alloc_phandle(fdt);
qemu_fdt_setprop_cell(fdt, node, "phandle", gpio_ph);
qemu_fdt_setprop_cell(fdt, node, "linux,phandle", gpio_ph);
/* Power Off Pin */
qemu_fdt_add_subnode(fdt, poweroff);
qemu_fdt_setprop_string(fdt, poweroff, "compatible", "gpio-poweroff");
qemu_fdt_setprop_cells(fdt, poweroff, "gpios", gpio_ph, 0, 0);
g_free(node);
g_free(poweroff);
}
static void dt_rtc_create(void *fdt, const char *i2c, const char *alias)
{
int offset = RTC_REGS_OFFSET;
gchar *rtc = g_strdup_printf("%s/rtc@%"PRIx32, i2c, offset);
qemu_fdt_add_subnode(fdt, rtc);
qemu_fdt_setprop_string(fdt, rtc, "compatible", "pericom,pt7c4338");
qemu_fdt_setprop_cells(fdt, rtc, "reg", offset);
qemu_fdt_setprop_string(fdt, "/aliases", alias, rtc);
g_free(rtc);
}
static void dt_i2c_create(void *fdt, const char *soc, const char *mpic,
const char *alias)
{
hwaddr mmio0 = MPC8544_I2C_REGS_OFFSET;
int irq0 = MPC8544_I2C_IRQ;
gchar *i2c = g_strdup_printf("%s/i2c@%"PRIx64, soc, mmio0);
qemu_fdt_add_subnode(fdt, i2c);
qemu_fdt_setprop_string(fdt, i2c, "device_type", "i2c");
qemu_fdt_setprop_string(fdt, i2c, "compatible", "fsl-i2c");
qemu_fdt_setprop_cells(fdt, i2c, "reg", mmio0, 0x14);
qemu_fdt_setprop_cells(fdt, i2c, "cell-index", 0);
qemu_fdt_setprop_cells(fdt, i2c, "interrupts", irq0, 0x2);
qemu_fdt_setprop_phandle(fdt, i2c, "interrupt-parent", mpic);
qemu_fdt_setprop_string(fdt, "/aliases", alias, i2c);
g_free(i2c);
}
static void dt_sdhc_create(void *fdt, const char *parent, const char *mpic)
{
hwaddr mmio = MPC85XX_ESDHC_REGS_OFFSET;
hwaddr size = MPC85XX_ESDHC_REGS_SIZE;
int irq = MPC85XX_ESDHC_IRQ;
g_autofree char *name = NULL;
name = g_strdup_printf("%s/sdhc@%" PRIx64, parent, mmio);
qemu_fdt_add_subnode(fdt, name);
qemu_fdt_setprop(fdt, name, "sdhci,auto-cmd12", NULL, 0);
qemu_fdt_setprop_phandle(fdt, name, "interrupt-parent", mpic);
qemu_fdt_setprop_cells(fdt, name, "bus-width", 4);
qemu_fdt_setprop_cells(fdt, name, "interrupts", irq, 0x2);
qemu_fdt_setprop_cells(fdt, name, "reg", mmio, size);
qemu_fdt_setprop_string(fdt, name, "compatible", "fsl,esdhc");
}
typedef struct PlatformDevtreeData {
void *fdt;
const char *mpic;
int irq_start;
const char *node;
PlatformBusDevice *pbus;
} PlatformDevtreeData;
static int create_devtree_etsec(SysBusDevice *sbdev, PlatformDevtreeData *data)
{
eTSEC *etsec = ETSEC_COMMON(sbdev);
PlatformBusDevice *pbus = data->pbus;
hwaddr mmio0 = platform_bus_get_mmio_addr(pbus, sbdev, 0);
int irq0 = platform_bus_get_irqn(pbus, sbdev, 0);
int irq1 = platform_bus_get_irqn(pbus, sbdev, 1);
int irq2 = platform_bus_get_irqn(pbus, sbdev, 2);
gchar *node = g_strdup_printf("/platform/ethernet@%"PRIx64, mmio0);
gchar *group = g_strdup_printf("%s/queue-group", node);
void *fdt = data->fdt;
assert((int64_t)mmio0 >= 0);
assert(irq0 >= 0);
assert(irq1 >= 0);
assert(irq2 >= 0);
qemu_fdt_add_subnode(fdt, node);
qemu_fdt_setprop(fdt, node, "ranges", NULL, 0);
qemu_fdt_setprop_string(fdt, node, "device_type", "network");
qemu_fdt_setprop_string(fdt, node, "compatible", "fsl,etsec2");
qemu_fdt_setprop_string(fdt, node, "model", "eTSEC");
qemu_fdt_setprop(fdt, node, "local-mac-address", etsec->conf.macaddr.a, 6);
qemu_fdt_setprop_cells(fdt, node, "fixed-link", 0, 1, 1000, 0, 0);
qemu_fdt_setprop_cells(fdt, node, "#size-cells", 1);
qemu_fdt_setprop_cells(fdt, node, "#address-cells", 1);
qemu_fdt_add_subnode(fdt, group);
qemu_fdt_setprop_cells(fdt, group, "reg", mmio0, 0x1000);
qemu_fdt_setprop_cells(fdt, group, "interrupts",
data->irq_start + irq0, 0x2,
data->irq_start + irq1, 0x2,
data->irq_start + irq2, 0x2);
g_free(node);
g_free(group);
return 0;
}
static void sysbus_device_create_devtree(SysBusDevice *sbdev, void *opaque)
{
PlatformDevtreeData *data = opaque;
bool matched = false;
if (object_dynamic_cast(OBJECT(sbdev), TYPE_ETSEC_COMMON)) {
create_devtree_etsec(sbdev, data);
matched = true;
}
if (!matched) {
error_report("Device %s is not supported by this machine yet.",
qdev_fw_name(DEVICE(sbdev)));
exit(1);
}
}
static void create_devtree_flash(SysBusDevice *sbdev,
PlatformDevtreeData *data)
{
g_autofree char *name = NULL;
uint64_t num_blocks = object_property_get_uint(OBJECT(sbdev),
"num-blocks",
&error_fatal);
uint64_t sector_length = object_property_get_uint(OBJECT(sbdev),
"sector-length",
&error_fatal);
uint64_t bank_width = object_property_get_uint(OBJECT(sbdev),
"width",
&error_fatal);
hwaddr flashbase = 0;
hwaddr flashsize = num_blocks * sector_length;
void *fdt = data->fdt;
name = g_strdup_printf("%s/nor@%" PRIx64, data->node, flashbase);
qemu_fdt_add_subnode(fdt, name);
qemu_fdt_setprop_string(fdt, name, "compatible", "cfi-flash");
qemu_fdt_setprop_sized_cells(fdt, name, "reg",
1, flashbase, 1, flashsize);
qemu_fdt_setprop_cell(fdt, name, "bank-width", bank_width);
}
static void platform_bus_create_devtree(PPCE500MachineState *pms,
void *fdt, const char *mpic)
{
const PPCE500MachineClass *pmc = PPCE500_MACHINE_GET_CLASS(pms);
gchar *node = g_strdup_printf("/platform@%"PRIx64, pmc->platform_bus_base);
const char platcomp[] = "qemu,platform\0simple-bus";
uint64_t addr = pmc->platform_bus_base;
uint64_t size = pmc->platform_bus_size;
int irq_start = pmc->platform_bus_first_irq;
SysBusDevice *sbdev;
bool ambiguous;
/* Create a /platform node that we can put all devices into */
qemu_fdt_add_subnode(fdt, node);
qemu_fdt_setprop(fdt, node, "compatible", platcomp, sizeof(platcomp));
/* Our platform bus region is less than 32bit big, so 1 cell is enough for
address and size */
qemu_fdt_setprop_cells(fdt, node, "#size-cells", 1);
qemu_fdt_setprop_cells(fdt, node, "#address-cells", 1);
qemu_fdt_setprop_cells(fdt, node, "ranges", 0, addr >> 32, addr, size);
qemu_fdt_setprop_phandle(fdt, node, "interrupt-parent", mpic);
/* Create dt nodes for dynamic devices */
PlatformDevtreeData data = {
.fdt = fdt,
.mpic = mpic,
.irq_start = irq_start,
.node = node,
.pbus = pms->pbus_dev,
};
/* Loop through all dynamic sysbus devices and create nodes for them */
foreach_dynamic_sysbus_device(sysbus_device_create_devtree, &data);
sbdev = SYS_BUS_DEVICE(object_resolve_path_type("", TYPE_PFLASH_CFI01,
&ambiguous));
if (sbdev) {
assert(!ambiguous);
create_devtree_flash(sbdev, &data);
}
g_free(node);
}
static int ppce500_load_device_tree(PPCE500MachineState *pms,
hwaddr addr,
hwaddr initrd_base,
hwaddr initrd_size,
hwaddr kernel_base,
hwaddr kernel_size,
bool dry_run)
{
MachineState *machine = MACHINE(pms);
unsigned int smp_cpus = machine->smp.cpus;
const PPCE500MachineClass *pmc = PPCE500_MACHINE_GET_CLASS(pms);
CPUPPCState *env = first_cpu->env_ptr;
int ret = -1;
uint64_t mem_reg_property[] = { 0, cpu_to_be64(machine->ram_size) };
int fdt_size;
void *fdt;
uint8_t hypercall[16];
uint32_t clock_freq = PLATFORM_CLK_FREQ_HZ;
uint32_t tb_freq = PLATFORM_CLK_FREQ_HZ;
int i;
char compatible_sb[] = "fsl,mpc8544-immr\0simple-bus";
char *soc;
char *mpic;
uint32_t mpic_ph;
uint32_t msi_ph;
char *gutil;
char *pci;
char *msi;
uint32_t *pci_map = NULL;
int len;
uint32_t pci_ranges[14] =
{
0x2000000, 0x0, pmc->pci_mmio_bus_base,
pmc->pci_mmio_base >> 32, pmc->pci_mmio_base,
0x0, 0x20000000,
0x1000000, 0x0, 0x0,
pmc->pci_pio_base >> 32, pmc->pci_pio_base,
0x0, 0x10000,
};
const char *dtb_file = machine->dtb;
const char *toplevel_compat = machine->dt_compatible;
uint8_t rng_seed[32];
if (dtb_file) {
char *filename;
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, dtb_file);
if (!filename) {
goto out;
}
fdt = load_device_tree(filename, &fdt_size);
g_free(filename);
if (!fdt) {
goto out;
}
goto done;
}
fdt = create_device_tree(&fdt_size);
if (fdt == NULL) {
goto out;
}
/* Manipulate device tree in memory. */
qemu_fdt_setprop_cell(fdt, "/", "#address-cells", 2);
qemu_fdt_setprop_cell(fdt, "/", "#size-cells", 2);
qemu_fdt_add_subnode(fdt, "/memory");
qemu_fdt_setprop_string(fdt, "/memory", "device_type", "memory");
qemu_fdt_setprop(fdt, "/memory", "reg", mem_reg_property,
sizeof(mem_reg_property));
qemu_fdt_add_subnode(fdt, "/chosen");
if (initrd_size) {
ret = qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-start",
initrd_base);
if (ret < 0) {
fprintf(stderr, "couldn't set /chosen/linux,initrd-start\n");
}
ret = qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-end",
(initrd_base + initrd_size));
if (ret < 0) {
fprintf(stderr, "couldn't set /chosen/linux,initrd-end\n");
}
}
if (kernel_base != -1ULL) {
qemu_fdt_setprop_cells(fdt, "/chosen", "qemu,boot-kernel",
kernel_base >> 32, kernel_base,
kernel_size >> 32, kernel_size);
}
ret = qemu_fdt_setprop_string(fdt, "/chosen", "bootargs",
machine->kernel_cmdline);
if (ret < 0)
fprintf(stderr, "couldn't set /chosen/bootargs\n");
qemu_guest_getrandom_nofail(rng_seed, sizeof(rng_seed));
qemu_fdt_setprop(fdt, "/chosen", "rng-seed", rng_seed, sizeof(rng_seed));
if (kvm_enabled()) {
/* Read out host's frequencies */
clock_freq = kvmppc_get_clockfreq();
tb_freq = kvmppc_get_tbfreq();
/* indicate KVM hypercall interface */
qemu_fdt_add_subnode(fdt, "/hypervisor");
qemu_fdt_setprop_string(fdt, "/hypervisor", "compatible",
"linux,kvm");
kvmppc_get_hypercall(env, hypercall, sizeof(hypercall));
qemu_fdt_setprop(fdt, "/hypervisor", "hcall-instructions",
hypercall, sizeof(hypercall));
/* if KVM supports the idle hcall, set property indicating this */
if (kvmppc_get_hasidle(env)) {
qemu_fdt_setprop(fdt, "/hypervisor", "has-idle", NULL, 0);
}
}
/* Create CPU nodes */
qemu_fdt_add_subnode(fdt, "/cpus");
qemu_fdt_setprop_cell(fdt, "/cpus", "#address-cells", 1);
qemu_fdt_setprop_cell(fdt, "/cpus", "#size-cells", 0);
/* We need to generate the cpu nodes in reverse order, so Linux can pick
the first node as boot node and be happy */
for (i = smp_cpus - 1; i >= 0; i--) {
CPUState *cpu;
char *cpu_name;
uint64_t cpu_release_addr = pmc->spin_base + (i * 0x20);
cpu = qemu_get_cpu(i);
if (cpu == NULL) {
continue;
}
env = cpu->env_ptr;
cpu_name = g_strdup_printf("/cpus/PowerPC,8544@%x", i);
qemu_fdt_add_subnode(fdt, cpu_name);
qemu_fdt_setprop_cell(fdt, cpu_name, "clock-frequency", clock_freq);
qemu_fdt_setprop_cell(fdt, cpu_name, "timebase-frequency", tb_freq);
qemu_fdt_setprop_string(fdt, cpu_name, "device_type", "cpu");
qemu_fdt_setprop_cell(fdt, cpu_name, "reg", i);
qemu_fdt_setprop_cell(fdt, cpu_name, "d-cache-line-size",
env->dcache_line_size);
qemu_fdt_setprop_cell(fdt, cpu_name, "i-cache-line-size",
env->icache_line_size);
qemu_fdt_setprop_cell(fdt, cpu_name, "d-cache-size", 0x8000);
qemu_fdt_setprop_cell(fdt, cpu_name, "i-cache-size", 0x8000);
qemu_fdt_setprop_cell(fdt, cpu_name, "bus-frequency", 0);
if (cpu->cpu_index) {
qemu_fdt_setprop_string(fdt, cpu_name, "status", "disabled");
qemu_fdt_setprop_string(fdt, cpu_name, "enable-method",
"spin-table");
qemu_fdt_setprop_u64(fdt, cpu_name, "cpu-release-addr",
cpu_release_addr);
} else {
qemu_fdt_setprop_string(fdt, cpu_name, "status", "okay");
}
g_free(cpu_name);
}
qemu_fdt_add_subnode(fdt, "/aliases");
/* XXX These should go into their respective devices' code */
soc = g_strdup_printf("/soc@%"PRIx64, pmc->ccsrbar_base);
qemu_fdt_add_subnode(fdt, soc);
qemu_fdt_setprop_string(fdt, soc, "device_type", "soc");
qemu_fdt_setprop(fdt, soc, "compatible", compatible_sb,
sizeof(compatible_sb));
qemu_fdt_setprop_cell(fdt, soc, "#address-cells", 1);
qemu_fdt_setprop_cell(fdt, soc, "#size-cells", 1);
qemu_fdt_setprop_cells(fdt, soc, "ranges", 0x0,
pmc->ccsrbar_base >> 32, pmc->ccsrbar_base,
MPC8544_CCSRBAR_SIZE);
/* XXX should contain a reasonable value */
qemu_fdt_setprop_cell(fdt, soc, "bus-frequency", 0);
mpic = g_strdup_printf("%s/pic@%llx", soc, MPC8544_MPIC_REGS_OFFSET);
qemu_fdt_add_subnode(fdt, mpic);
qemu_fdt_setprop_string(fdt, mpic, "device_type", "open-pic");
qemu_fdt_setprop_string(fdt, mpic, "compatible", "fsl,mpic");
qemu_fdt_setprop_cells(fdt, mpic, "reg", MPC8544_MPIC_REGS_OFFSET,
0x40000);
qemu_fdt_setprop_cell(fdt, mpic, "#address-cells", 0);
qemu_fdt_setprop_cell(fdt, mpic, "#interrupt-cells", 2);
mpic_ph = qemu_fdt_alloc_phandle(fdt);
qemu_fdt_setprop_cell(fdt, mpic, "phandle", mpic_ph);
qemu_fdt_setprop_cell(fdt, mpic, "linux,phandle", mpic_ph);
qemu_fdt_setprop(fdt, mpic, "interrupt-controller", NULL, 0);
/*
* We have to generate ser1 first, because Linux takes the first
* device it finds in the dt as serial output device. And we generate
* devices in reverse order to the dt.
*/
if (serial_hd(1)) {
dt_serial_create(fdt, MPC8544_SERIAL1_REGS_OFFSET,
soc, mpic, "serial1", 1, false);
}
if (serial_hd(0)) {
dt_serial_create(fdt, MPC8544_SERIAL0_REGS_OFFSET,
soc, mpic, "serial0", 0, true);
}
/* i2c */
dt_i2c_create(fdt, soc, mpic, "i2c");
dt_rtc_create(fdt, "i2c", "rtc");
/* sdhc */
if (pmc->has_esdhc) {
dt_sdhc_create(fdt, soc, mpic);
}
gutil = g_strdup_printf("%s/global-utilities@%llx", soc,
MPC8544_UTIL_OFFSET);
qemu_fdt_add_subnode(fdt, gutil);
qemu_fdt_setprop_string(fdt, gutil, "compatible", "fsl,mpc8544-guts");
qemu_fdt_setprop_cells(fdt, gutil, "reg", MPC8544_UTIL_OFFSET, 0x1000);
qemu_fdt_setprop(fdt, gutil, "fsl,has-rstcr", NULL, 0);
g_free(gutil);
msi = g_strdup_printf("/%s/msi@%llx", soc, MPC8544_MSI_REGS_OFFSET);
qemu_fdt_add_subnode(fdt, msi);
qemu_fdt_setprop_string(fdt, msi, "compatible", "fsl,mpic-msi");
qemu_fdt_setprop_cells(fdt, msi, "reg", MPC8544_MSI_REGS_OFFSET, 0x200);
msi_ph = qemu_fdt_alloc_phandle(fdt);
qemu_fdt_setprop_cells(fdt, msi, "msi-available-ranges", 0x0, 0x100);
qemu_fdt_setprop_phandle(fdt, msi, "interrupt-parent", mpic);
qemu_fdt_setprop_cells(fdt, msi, "interrupts",
0xe0, 0x0,
0xe1, 0x0,
0xe2, 0x0,
0xe3, 0x0,
0xe4, 0x0,
0xe5, 0x0,
0xe6, 0x0,
0xe7, 0x0);
qemu_fdt_setprop_cell(fdt, msi, "phandle", msi_ph);
qemu_fdt_setprop_cell(fdt, msi, "linux,phandle", msi_ph);
g_free(msi);
pci = g_strdup_printf("/pci@%llx",
pmc->ccsrbar_base + MPC8544_PCI_REGS_OFFSET);
qemu_fdt_add_subnode(fdt, pci);
qemu_fdt_setprop_cell(fdt, pci, "cell-index", 0);
qemu_fdt_setprop_string(fdt, pci, "compatible", "fsl,mpc8540-pci");
qemu_fdt_setprop_string(fdt, pci, "device_type", "pci");
qemu_fdt_setprop_cells(fdt, pci, "interrupt-map-mask", 0xf800, 0x0,
0x0, 0x7);
pci_map = pci_map_create(fdt, qemu_fdt_get_phandle(fdt, mpic),
pmc->pci_first_slot, pmc->pci_nr_slots,
&len);
qemu_fdt_setprop(fdt, pci, "interrupt-map", pci_map, len);
qemu_fdt_setprop_phandle(fdt, pci, "interrupt-parent", mpic);
qemu_fdt_setprop_cells(fdt, pci, "interrupts", 24, 2);
qemu_fdt_setprop_cells(fdt, pci, "bus-range", 0, 255);
for (i = 0; i < 14; i++) {
pci_ranges[i] = cpu_to_be32(pci_ranges[i]);
}
qemu_fdt_setprop_cell(fdt, pci, "fsl,msi", msi_ph);
qemu_fdt_setprop(fdt, pci, "ranges", pci_ranges, sizeof(pci_ranges));
qemu_fdt_setprop_cells(fdt, pci, "reg",
(pmc->ccsrbar_base + MPC8544_PCI_REGS_OFFSET) >> 32,
(pmc->ccsrbar_base + MPC8544_PCI_REGS_OFFSET),
0, 0x1000);
qemu_fdt_setprop_cell(fdt, pci, "clock-frequency", 66666666);
qemu_fdt_setprop_cell(fdt, pci, "#interrupt-cells", 1);
qemu_fdt_setprop_cell(fdt, pci, "#size-cells", 2);
qemu_fdt_setprop_cell(fdt, pci, "#address-cells", 3);
qemu_fdt_setprop_string(fdt, "/aliases", "pci0", pci);
g_free(pci);
if (pmc->has_mpc8xxx_gpio) {
create_dt_mpc8xxx_gpio(fdt, soc, mpic);
}
g_free(soc);
if (pms->pbus_dev) {
platform_bus_create_devtree(pms, fdt, mpic);
}
g_free(mpic);
pmc->fixup_devtree(fdt);
if (toplevel_compat) {
qemu_fdt_setprop(fdt, "/", "compatible", toplevel_compat,
strlen(toplevel_compat) + 1);
}
done:
if (!dry_run) {
qemu_fdt_dumpdtb(fdt, fdt_size);
cpu_physical_memory_write(addr, fdt, fdt_size);
}
ret = fdt_size;
g_free(fdt);
out:
g_free(pci_map);
return ret;
}
typedef struct DeviceTreeParams {
PPCE500MachineState *machine;
hwaddr addr;
hwaddr initrd_base;
hwaddr initrd_size;
hwaddr kernel_base;
hwaddr kernel_size;
Notifier notifier;
} DeviceTreeParams;
static void ppce500_reset_device_tree(void *opaque)
{
DeviceTreeParams *p = opaque;
ppce500_load_device_tree(p->machine, p->addr, p->initrd_base,
p->initrd_size, p->kernel_base, p->kernel_size,
false);
}
static void ppce500_init_notify(Notifier *notifier, void *data)
{
DeviceTreeParams *p = container_of(notifier, DeviceTreeParams, notifier);
ppce500_reset_device_tree(p);
}
static int ppce500_prep_device_tree(PPCE500MachineState *machine,
hwaddr addr,
hwaddr initrd_base,
hwaddr initrd_size,
hwaddr kernel_base,
hwaddr kernel_size)
{
DeviceTreeParams *p = g_new(DeviceTreeParams, 1);
p->machine = machine;
p->addr = addr;
p->initrd_base = initrd_base;
p->initrd_size = initrd_size;
p->kernel_base = kernel_base;
p->kernel_size = kernel_size;
qemu_register_reset(ppce500_reset_device_tree, p);
p->notifier.notify = ppce500_init_notify;
qemu_add_machine_init_done_notifier(&p->notifier);
/* Issue the device tree loader once, so that we get the size of the blob */
return ppce500_load_device_tree(machine, addr, initrd_base, initrd_size,
kernel_base, kernel_size, true);
}
/* Create -kernel TLB entries for BookE. */
hwaddr booke206_page_size_to_tlb(uint64_t size)
{
return 63 - clz64(size / KiB);
}
static int booke206_initial_map_tsize(CPUPPCState *env)
{
struct boot_info *bi = env->load_info;
hwaddr dt_end;
int ps;
/* Our initial TLB entry needs to cover everything from 0 to
the device tree top */
dt_end = bi->dt_base + bi->dt_size;
ps = booke206_page_size_to_tlb(dt_end) + 1;
if (ps & 1) {
/* e500v2 can only do even TLB size bits */
ps++;
}
return ps;
}
static uint64_t mmubooke_initial_mapsize(CPUPPCState *env)
{
int tsize;
tsize = booke206_initial_map_tsize(env);
return (1ULL << 10 << tsize);
}
static void mmubooke_create_initial_mapping(CPUPPCState *env)
{
ppcmas_tlb_t *tlb = booke206_get_tlbm(env, 1, 0, 0);
hwaddr size;
int ps;
ps = booke206_initial_map_tsize(env);
size = (ps << MAS1_TSIZE_SHIFT);
tlb->mas1 = MAS1_VALID | size;
tlb->mas2 = 0;
tlb->mas7_3 = 0;
tlb->mas7_3 |= MAS3_UR | MAS3_UW | MAS3_UX | MAS3_SR | MAS3_SW | MAS3_SX;
env->tlb_dirty = true;
}
static void ppce500_cpu_reset_sec(void *opaque)
{
PowerPCCPU *cpu = opaque;
CPUState *cs = CPU(cpu);
cpu_reset(cs);
cs->exception_index = EXCP_HLT;
}
static void ppce500_cpu_reset(void *opaque)
{
PowerPCCPU *cpu = opaque;
CPUState *cs = CPU(cpu);
CPUPPCState *env = &cpu->env;
struct boot_info *bi = env->load_info;
cpu_reset(cs);
/* Set initial guest state. */
cs->halted = 0;
env->gpr[1] = (16 * MiB) - 8;
env->gpr[3] = bi->dt_base;
env->gpr[4] = 0;
env->gpr[5] = 0;
env->gpr[6] = EPAPR_MAGIC;
env->gpr[7] = mmubooke_initial_mapsize(env);
env->gpr[8] = 0;
env->gpr[9] = 0;
env->nip = bi->entry;
mmubooke_create_initial_mapping(env);
}
static DeviceState *ppce500_init_mpic_qemu(PPCE500MachineState *pms,
IrqLines *irqs)
{
DeviceState *dev;
SysBusDevice *s;
int i, j, k;
MachineState *machine = MACHINE(pms);
unsigned int smp_cpus = machine->smp.cpus;
const PPCE500MachineClass *pmc = PPCE500_MACHINE_GET_CLASS(pms);
dev = qdev_new(TYPE_OPENPIC);
object_property_add_child(OBJECT(machine), "pic", OBJECT(dev));
qdev_prop_set_uint32(dev, "model", pmc->mpic_version);
qdev_prop_set_uint32(dev, "nb_cpus", smp_cpus);
s = SYS_BUS_DEVICE(dev);
sysbus_realize_and_unref(s, &error_fatal);
k = 0;
for (i = 0; i < smp_cpus; i++) {
for (j = 0; j < OPENPIC_OUTPUT_NB; j++) {
sysbus_connect_irq(s, k++, irqs[i].irq[j]);
}
}
return dev;
}
static DeviceState *ppce500_init_mpic_kvm(const PPCE500MachineClass *pmc,
IrqLines *irqs, Error **errp)
{
DeviceState *dev;
CPUState *cs;
dev = qdev_new(TYPE_KVM_OPENPIC);
qdev_prop_set_uint32(dev, "model", pmc->mpic_version);
if (!sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), errp)) {
object_unparent(OBJECT(dev));
return NULL;
}
CPU_FOREACH(cs) {
if (kvm_openpic_connect_vcpu(dev, cs)) {
fprintf(stderr, "%s: failed to connect vcpu to irqchip\n",
__func__);
abort();
}
}
return dev;
}
static DeviceState *ppce500_init_mpic(PPCE500MachineState *pms,
MemoryRegion *ccsr,
IrqLines *irqs)
{
const PPCE500MachineClass *pmc = PPCE500_MACHINE_GET_CLASS(pms);
DeviceState *dev = NULL;
SysBusDevice *s;
if (kvm_enabled()) {
Error *err = NULL;
if (kvm_kernel_irqchip_allowed()) {
dev = ppce500_init_mpic_kvm(pmc, irqs, &err);
}
if (kvm_kernel_irqchip_required() && !dev) {
error_reportf_err(err,
"kernel_irqchip requested but unavailable: ");
exit(1);
}
}
if (!dev) {
dev = ppce500_init_mpic_qemu(pms, irqs);
}
s = SYS_BUS_DEVICE(dev);
memory_region_add_subregion(ccsr, MPC8544_MPIC_REGS_OFFSET,
s->mmio[0].memory);
return dev;
}
static void ppce500_power_off(void *opaque, int line, int on)
{
if (on) {
qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
}
}
void ppce500_init(MachineState *machine)
{
MemoryRegion *address_space_mem = get_system_memory();
PPCE500MachineState *pms = PPCE500_MACHINE(machine);
const PPCE500MachineClass *pmc = PPCE500_MACHINE_GET_CLASS(machine);
PCIBus *pci_bus;
CPUPPCState *env = NULL;
uint64_t loadaddr;
hwaddr kernel_base = -1LL;
int kernel_size = 0;
hwaddr dt_base = 0;
hwaddr initrd_base = 0;
int initrd_size = 0;
hwaddr cur_base = 0;
char *filename;
const char *payload_name;
bool kernel_as_payload;
hwaddr bios_entry = 0;
target_long payload_size;
struct boot_info *boot_info = NULL;
int dt_size;
int i;
unsigned int smp_cpus = machine->smp.cpus;
/* irq num for pin INTA, INTB, INTC and INTD is 1, 2, 3 and
* 4 respectively */
unsigned int pci_irq_nrs[PCI_NUM_PINS] = {1, 2, 3, 4};
IrqLines *irqs;
DeviceState *dev, *mpicdev;
DriveInfo *dinfo;
CPUPPCState *firstenv = NULL;
MemoryRegion *ccsr_addr_space;
SysBusDevice *s;
PPCE500CCSRState *ccsr;
I2CBus *i2c;
irqs = g_new0(IrqLines, smp_cpus);
for (i = 0; i < smp_cpus; i++) {
PowerPCCPU *cpu;
CPUState *cs;
cpu = POWERPC_CPU(object_new(machine->cpu_type));
env = &cpu->env;
cs = CPU(cpu);
if (env->mmu_model != POWERPC_MMU_BOOKE206) {
error_report("MMU model %i not supported by this machine",
env->mmu_model);
exit(1);
}
/*
* Secondary CPU starts in halted state for now. Needs to change
* when implementing non-kernel boot.
*/
object_property_set_bool(OBJECT(cs), "start-powered-off", i != 0,
&error_fatal);
qdev_realize_and_unref(DEVICE(cs), NULL, &error_fatal);
if (!firstenv) {
firstenv = env;
}
irqs[i].irq[OPENPIC_OUTPUT_INT] =
qdev_get_gpio_in(DEVICE(cpu), PPCE500_INPUT_INT);
irqs[i].irq[OPENPIC_OUTPUT_CINT] =
qdev_get_gpio_in(DEVICE(cpu), PPCE500_INPUT_CINT);
env->spr_cb[SPR_BOOKE_PIR].default_value = cs->cpu_index = i;
env->mpic_iack = pmc->ccsrbar_base + MPC8544_MPIC_REGS_OFFSET + 0xa0;
ppc_booke_timers_init(cpu, PLATFORM_CLK_FREQ_HZ, PPC_TIMER_E500);
/* Register reset handler */
if (!i) {
/* Primary CPU */
boot_info = g_new0(struct boot_info, 1);
qemu_register_reset(ppce500_cpu_reset, cpu);
env->load_info = boot_info;
} else {
/* Secondary CPUs */
qemu_register_reset(ppce500_cpu_reset_sec, cpu);
}
}
env = firstenv;
if (!QEMU_IS_ALIGNED(machine->ram_size, RAM_SIZES_ALIGN)) {
error_report("RAM size must be multiple of %" PRIu64, RAM_SIZES_ALIGN);
exit(EXIT_FAILURE);
}
/* Register Memory */
memory_region_add_subregion(address_space_mem, 0, machine->ram);
dev = qdev_new("e500-ccsr");
object_property_add_child(OBJECT(machine), "e500-ccsr",
OBJECT(dev));
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
ccsr = CCSR(dev);
ccsr_addr_space = &ccsr->ccsr_space;
memory_region_add_subregion(address_space_mem, pmc->ccsrbar_base,
ccsr_addr_space);
mpicdev = ppce500_init_mpic(pms, ccsr_addr_space, irqs);
g_free(irqs);
/* Serial */
if (serial_hd(0)) {
serial_mm_init(ccsr_addr_space, MPC8544_SERIAL0_REGS_OFFSET,
0, qdev_get_gpio_in(mpicdev, 42), 399193,