xref: /openbmc/qemu/hw/ide/pci.c (revision c1a6ae51)
1 /*
2  * QEMU IDE Emulation: PCI Bus support.
3  *
4  * Copyright (c) 2003 Fabrice Bellard
5  * Copyright (c) 2006 Openedhand Ltd.
6  *
7  * Permission is hereby granted, free of charge, to any person obtaining a copy
8  * of this software and associated documentation files (the "Software"), to deal
9  * in the Software without restriction, including without limitation the rights
10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11  * copies of the Software, and to permit persons to whom the Software is
12  * furnished to do so, subject to the following conditions:
13  *
14  * The above copyright notice and this permission notice shall be included in
15  * all copies or substantial portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23  * THE SOFTWARE.
24  */
25 
26 #include "qemu/osdep.h"
27 #include "hw/irq.h"
28 #include "hw/pci/pci.h"
29 #include "migration/vmstate.h"
30 #include "sysemu/dma.h"
31 #include "qemu/error-report.h"
32 #include "qemu/module.h"
33 #include "hw/ide/pci.h"
34 #include "ide-internal.h"
35 #include "trace.h"
36 
37 #define BMDMA_PAGE_SIZE 4096
38 
39 #define BM_MIGRATION_COMPAT_STATUS_BITS \
40         (IDE_RETRY_DMA | IDE_RETRY_PIO | \
41         IDE_RETRY_READ | IDE_RETRY_FLUSH)
42 
pci_ide_status_read(void * opaque,hwaddr addr,unsigned size)43 static uint64_t pci_ide_status_read(void *opaque, hwaddr addr, unsigned size)
44 {
45     IDEBus *bus = opaque;
46 
47     if (addr != 2 || size != 1) {
48         return ((uint64_t)1 << (size * 8)) - 1;
49     }
50     return ide_status_read(bus, addr + 2);
51 }
52 
pci_ide_ctrl_write(void * opaque,hwaddr addr,uint64_t data,unsigned size)53 static void pci_ide_ctrl_write(void *opaque, hwaddr addr,
54                                uint64_t data, unsigned size)
55 {
56     IDEBus *bus = opaque;
57 
58     if (addr != 2 || size != 1) {
59         return;
60     }
61     ide_ctrl_write(bus, addr + 2, data);
62 }
63 
64 const MemoryRegionOps pci_ide_cmd_le_ops = {
65     .read = pci_ide_status_read,
66     .write = pci_ide_ctrl_write,
67     .endianness = DEVICE_LITTLE_ENDIAN,
68 };
69 
pci_ide_data_read(void * opaque,hwaddr addr,unsigned size)70 static uint64_t pci_ide_data_read(void *opaque, hwaddr addr, unsigned size)
71 {
72     IDEBus *bus = opaque;
73 
74     if (size == 1) {
75         return ide_ioport_read(bus, addr);
76     } else if (addr == 0) {
77         if (size == 2) {
78             return ide_data_readw(bus, addr);
79         } else {
80             return ide_data_readl(bus, addr);
81         }
82     }
83     return ((uint64_t)1 << (size * 8)) - 1;
84 }
85 
pci_ide_data_write(void * opaque,hwaddr addr,uint64_t data,unsigned size)86 static void pci_ide_data_write(void *opaque, hwaddr addr,
87                                uint64_t data, unsigned size)
88 {
89     IDEBus *bus = opaque;
90 
91     if (size == 1) {
92         ide_ioport_write(bus, addr, data);
93     } else if (addr == 0) {
94         if (size == 2) {
95             ide_data_writew(bus, addr, data);
96         } else {
97             ide_data_writel(bus, addr, data);
98         }
99     }
100 }
101 
102 const MemoryRegionOps pci_ide_data_le_ops = {
103     .read = pci_ide_data_read,
104     .write = pci_ide_data_write,
105     .endianness = DEVICE_LITTLE_ENDIAN,
106 };
107 
pci_ide_update_mode(PCIIDEState * s)108 void pci_ide_update_mode(PCIIDEState *s)
109 {
110     PCIDevice *d = PCI_DEVICE(s);
111     uint8_t mode = d->config[PCI_CLASS_PROG];
112 
113     /*
114      * This function only configures the BARs/ioports for now: PCI IDE
115      * controllers must manage their own IRQ routing
116      */
117 
118     switch (mode & 0xf) {
119     case 0xa:
120         /* Both channels legacy mode */
121 
122         /*
123          * TODO: according to the PCI IDE specification the BARs should
124          * be completely disabled, however Linux for the pegasos2
125          * machine stil accesses the BAR addresses after switching to legacy
126          * mode. Hence we leave them active for now.
127          */
128 
129         /* Clear interrupt pin */
130         pci_config_set_interrupt_pin(d->config, 0);
131 
132         /* Add legacy IDE ports */
133         if (!s->bus[0].portio_list.owner) {
134             portio_list_init(&s->bus[0].portio_list, OBJECT(d),
135                              ide_portio_list, &s->bus[0], "ide");
136             portio_list_add(&s->bus[0].portio_list,
137                             pci_address_space_io(d), 0x1f0);
138         }
139 
140         if (!s->bus[0].portio2_list.owner) {
141             portio_list_init(&s->bus[0].portio2_list, OBJECT(d),
142                              ide_portio2_list, &s->bus[0], "ide");
143             portio_list_add(&s->bus[0].portio2_list,
144                             pci_address_space_io(d), 0x3f6);
145         }
146 
147         if (!s->bus[1].portio_list.owner) {
148             portio_list_init(&s->bus[1].portio_list, OBJECT(d),
149                                 ide_portio_list, &s->bus[1], "ide");
150             portio_list_add(&s->bus[1].portio_list,
151                             pci_address_space_io(d), 0x170);
152         }
153 
154         if (!s->bus[1].portio2_list.owner) {
155             portio_list_init(&s->bus[1].portio2_list, OBJECT(d),
156                              ide_portio2_list, &s->bus[1], "ide");
157             portio_list_add(&s->bus[1].portio2_list,
158                             pci_address_space_io(d), 0x376);
159         }
160         break;
161 
162     case 0xf:
163         /* Both channels native mode */
164 
165         /* Set interrupt pin */
166         pci_config_set_interrupt_pin(d->config, 1);
167 
168         /* Remove legacy IDE ports */
169         if (s->bus[0].portio_list.owner) {
170             portio_list_del(&s->bus[0].portio_list);
171             portio_list_destroy(&s->bus[0].portio_list);
172         }
173 
174         if (s->bus[0].portio2_list.owner) {
175             portio_list_del(&s->bus[0].portio2_list);
176             portio_list_destroy(&s->bus[0].portio2_list);
177         }
178 
179         if (s->bus[1].portio_list.owner) {
180             portio_list_del(&s->bus[1].portio_list);
181             portio_list_destroy(&s->bus[1].portio_list);
182         }
183 
184         if (s->bus[1].portio2_list.owner) {
185             portio_list_del(&s->bus[1].portio2_list);
186             portio_list_destroy(&s->bus[1].portio2_list);
187         }
188         break;
189     }
190 }
191 
bmdma_active_if(BMDMAState * bmdma)192 static IDEState *bmdma_active_if(BMDMAState *bmdma)
193 {
194     assert(bmdma->bus->retry_unit != (uint8_t)-1);
195     return bmdma->bus->ifs + bmdma->bus->retry_unit;
196 }
197 
bmdma_start_dma(const IDEDMA * dma,IDEState * s,BlockCompletionFunc * dma_cb)198 static void bmdma_start_dma(const IDEDMA *dma, IDEState *s,
199                             BlockCompletionFunc *dma_cb)
200 {
201     BMDMAState *bm = DO_UPCAST(BMDMAState, dma, dma);
202 
203     bm->dma_cb = dma_cb;
204     bm->cur_prd_last = 0;
205     bm->cur_prd_addr = 0;
206     bm->cur_prd_len = 0;
207 
208     if (bm->status & BM_STATUS_DMAING) {
209         bm->dma_cb(bmdma_active_if(bm), 0);
210     }
211 }
212 
213 /**
214  * Prepare an sglist based on available PRDs.
215  * @limit: How many bytes to prepare total.
216  *
217  * Returns the number of bytes prepared, -1 on error.
218  * IDEState.io_buffer_size will contain the number of bytes described
219  * by the PRDs, whether or not we added them to the sglist.
220  */
bmdma_prepare_buf(const IDEDMA * dma,int32_t limit)221 static int32_t bmdma_prepare_buf(const IDEDMA *dma, int32_t limit)
222 {
223     BMDMAState *bm = DO_UPCAST(BMDMAState, dma, dma);
224     IDEState *s = bmdma_active_if(bm);
225     PCIDevice *pci_dev = PCI_DEVICE(bm->pci_dev);
226     struct {
227         uint32_t addr;
228         uint32_t size;
229     } prd;
230     int l, len;
231 
232     pci_dma_sglist_init(&s->sg, pci_dev,
233                         s->nsector / (BMDMA_PAGE_SIZE / BDRV_SECTOR_SIZE) + 1);
234     s->io_buffer_size = 0;
235     for(;;) {
236         if (bm->cur_prd_len == 0) {
237             /* end of table (with a fail safe of one page) */
238             if (bm->cur_prd_last ||
239                 (bm->cur_addr - bm->addr) >= BMDMA_PAGE_SIZE) {
240                 break;
241             }
242             pci_dma_read(pci_dev, bm->cur_addr, &prd, 8);
243             bm->cur_addr += 8;
244             prd.addr = le32_to_cpu(prd.addr);
245             prd.size = le32_to_cpu(prd.size);
246             len = prd.size & 0xfffe;
247             if (len == 0)
248                 len = 0x10000;
249             bm->cur_prd_len = len;
250             bm->cur_prd_addr = prd.addr;
251             bm->cur_prd_last = (prd.size & 0x80000000);
252         }
253         l = bm->cur_prd_len;
254         if (l > 0) {
255             uint64_t sg_len;
256 
257             /* Don't add extra bytes to the SGList; consume any remaining
258              * PRDs from the guest, but ignore them. */
259             sg_len = MIN(limit - s->sg.size, bm->cur_prd_len);
260             if (sg_len) {
261                 qemu_sglist_add(&s->sg, bm->cur_prd_addr, sg_len);
262             }
263 
264             bm->cur_prd_addr += l;
265             bm->cur_prd_len -= l;
266             s->io_buffer_size += l;
267         }
268     }
269     return s->sg.size;
270 }
271 
272 /* return 0 if buffer completed */
bmdma_rw_buf(const IDEDMA * dma,bool is_write)273 static int bmdma_rw_buf(const IDEDMA *dma, bool is_write)
274 {
275     BMDMAState *bm = DO_UPCAST(BMDMAState, dma, dma);
276     IDEState *s = bmdma_active_if(bm);
277     PCIDevice *pci_dev = PCI_DEVICE(bm->pci_dev);
278     struct {
279         uint32_t addr;
280         uint32_t size;
281     } prd;
282     int l, len;
283 
284     for(;;) {
285         l = s->io_buffer_size - s->io_buffer_index;
286         if (l <= 0)
287             break;
288         if (bm->cur_prd_len == 0) {
289             /* end of table (with a fail safe of one page) */
290             if (bm->cur_prd_last ||
291                 (bm->cur_addr - bm->addr) >= BMDMA_PAGE_SIZE)
292                 return 0;
293             pci_dma_read(pci_dev, bm->cur_addr, &prd, 8);
294             bm->cur_addr += 8;
295             prd.addr = le32_to_cpu(prd.addr);
296             prd.size = le32_to_cpu(prd.size);
297             len = prd.size & 0xfffe;
298             if (len == 0)
299                 len = 0x10000;
300             bm->cur_prd_len = len;
301             bm->cur_prd_addr = prd.addr;
302             bm->cur_prd_last = (prd.size & 0x80000000);
303         }
304         if (l > bm->cur_prd_len)
305             l = bm->cur_prd_len;
306         if (l > 0) {
307             if (is_write) {
308                 pci_dma_write(pci_dev, bm->cur_prd_addr,
309                               s->io_buffer + s->io_buffer_index, l);
310             } else {
311                 pci_dma_read(pci_dev, bm->cur_prd_addr,
312                              s->io_buffer + s->io_buffer_index, l);
313             }
314             bm->cur_prd_addr += l;
315             bm->cur_prd_len -= l;
316             s->io_buffer_index += l;
317         }
318     }
319     return 1;
320 }
321 
bmdma_set_inactive(const IDEDMA * dma,bool more)322 static void bmdma_set_inactive(const IDEDMA *dma, bool more)
323 {
324     BMDMAState *bm = DO_UPCAST(BMDMAState, dma, dma);
325 
326     bm->dma_cb = NULL;
327     if (more) {
328         bm->status |= BM_STATUS_DMAING;
329     } else {
330         bm->status &= ~BM_STATUS_DMAING;
331     }
332 }
333 
bmdma_restart_dma(const IDEDMA * dma)334 static void bmdma_restart_dma(const IDEDMA *dma)
335 {
336     BMDMAState *bm = DO_UPCAST(BMDMAState, dma, dma);
337 
338     bm->cur_addr = bm->addr;
339 }
340 
bmdma_cancel(BMDMAState * bm)341 static void bmdma_cancel(BMDMAState *bm)
342 {
343     if (bm->status & BM_STATUS_DMAING) {
344         /* cancel DMA request */
345         bmdma_set_inactive(&bm->dma, false);
346     }
347 }
348 
bmdma_reset(const IDEDMA * dma)349 static void bmdma_reset(const IDEDMA *dma)
350 {
351     BMDMAState *bm = DO_UPCAST(BMDMAState, dma, dma);
352 
353     trace_bmdma_reset();
354     bmdma_cancel(bm);
355     bm->cmd = 0;
356     bm->status = 0;
357     bm->addr = 0;
358     bm->cur_addr = 0;
359     bm->cur_prd_last = 0;
360     bm->cur_prd_addr = 0;
361     bm->cur_prd_len = 0;
362 }
363 
bmdma_irq(void * opaque,int n,int level)364 static void bmdma_irq(void *opaque, int n, int level)
365 {
366     BMDMAState *bm = opaque;
367 
368     if (!level) {
369         /* pass through lower */
370         qemu_set_irq(bm->irq, level);
371         return;
372     }
373 
374     bm->status |= BM_STATUS_INT;
375 
376     /* trigger the real irq */
377     qemu_set_irq(bm->irq, level);
378 }
379 
bmdma_cmd_writeb(BMDMAState * bm,uint32_t val)380 void bmdma_cmd_writeb(BMDMAState *bm, uint32_t val)
381 {
382     trace_bmdma_cmd_writeb(val);
383 
384     /* Ignore writes to SSBM if it keeps the old value */
385     if ((val & BM_CMD_START) != (bm->cmd & BM_CMD_START)) {
386         if (!(val & BM_CMD_START)) {
387             ide_cancel_dma_sync(ide_bus_active_if(bm->bus));
388             bm->status &= ~BM_STATUS_DMAING;
389         } else {
390             bm->cur_addr = bm->addr;
391             if (!(bm->status & BM_STATUS_DMAING)) {
392                 bm->status |= BM_STATUS_DMAING;
393                 /* start dma transfer if possible */
394                 if (bm->dma_cb)
395                     bm->dma_cb(bmdma_active_if(bm), 0);
396             }
397         }
398     }
399 
400     bm->cmd = val & 0x09;
401 }
402 
bmdma_status_writeb(BMDMAState * bm,uint32_t val)403 void bmdma_status_writeb(BMDMAState *bm, uint32_t val)
404 {
405     bm->status = (val & 0x60) | (bm->status & BM_STATUS_DMAING)
406                  | (bm->status & ~val & (BM_STATUS_ERROR | BM_STATUS_INT));
407 }
408 
bmdma_addr_read(void * opaque,hwaddr addr,unsigned width)409 static uint64_t bmdma_addr_read(void *opaque, hwaddr addr,
410                                 unsigned width)
411 {
412     BMDMAState *bm = opaque;
413     uint32_t mask = (1ULL << (width * 8)) - 1;
414     uint64_t data;
415 
416     data = (bm->addr >> (addr * 8)) & mask;
417     trace_bmdma_addr_read(data);
418     return data;
419 }
420 
bmdma_addr_write(void * opaque,hwaddr addr,uint64_t data,unsigned width)421 static void bmdma_addr_write(void *opaque, hwaddr addr,
422                              uint64_t data, unsigned width)
423 {
424     BMDMAState *bm = opaque;
425     int shift = addr * 8;
426     uint32_t mask = (1ULL << (width * 8)) - 1;
427 
428     trace_bmdma_addr_write(data);
429     bm->addr &= ~(mask << shift);
430     bm->addr |= ((data & mask) << shift) & ~3;
431 }
432 
433 MemoryRegionOps bmdma_addr_ioport_ops = {
434     .read = bmdma_addr_read,
435     .write = bmdma_addr_write,
436     .endianness = DEVICE_LITTLE_ENDIAN,
437 };
438 
ide_bmdma_current_needed(void * opaque)439 static bool ide_bmdma_current_needed(void *opaque)
440 {
441     BMDMAState *bm = opaque;
442 
443     return (bm->cur_prd_len != 0);
444 }
445 
ide_bmdma_status_needed(void * opaque)446 static bool ide_bmdma_status_needed(void *opaque)
447 {
448     BMDMAState *bm = opaque;
449 
450     /* Older versions abused some bits in the status register for internal
451      * error state. If any of these bits are set, we must add a subsection to
452      * transfer the real status register */
453     uint8_t abused_bits = BM_MIGRATION_COMPAT_STATUS_BITS;
454 
455     return ((bm->status & abused_bits) != 0);
456 }
457 
ide_bmdma_pre_save(void * opaque)458 static int ide_bmdma_pre_save(void *opaque)
459 {
460     BMDMAState *bm = opaque;
461     uint8_t abused_bits = BM_MIGRATION_COMPAT_STATUS_BITS;
462 
463     if (!(bm->status & BM_STATUS_DMAING) && bm->dma_cb) {
464         bm->bus->error_status =
465             ide_dma_cmd_to_retry(bmdma_active_if(bm)->dma_cmd);
466     }
467     bm->migration_retry_unit = bm->bus->retry_unit;
468     bm->migration_retry_sector_num = bm->bus->retry_sector_num;
469     bm->migration_retry_nsector = bm->bus->retry_nsector;
470     bm->migration_compat_status =
471         (bm->status & ~abused_bits) | (bm->bus->error_status & abused_bits);
472 
473     return 0;
474 }
475 
476 /* This function accesses bm->bus->error_status which is loaded only after
477  * BMDMA itself. This is why the function is called from ide_pci_post_load
478  * instead of being registered with VMState where it would run too early. */
ide_bmdma_post_load(void * opaque,int version_id)479 static int ide_bmdma_post_load(void *opaque, int version_id)
480 {
481     BMDMAState *bm = opaque;
482     uint8_t abused_bits = BM_MIGRATION_COMPAT_STATUS_BITS;
483 
484     if (bm->status == 0) {
485         bm->status = bm->migration_compat_status & ~abused_bits;
486         bm->bus->error_status |= bm->migration_compat_status & abused_bits;
487     }
488     if (bm->bus->error_status) {
489         bm->bus->retry_sector_num = bm->migration_retry_sector_num;
490         bm->bus->retry_nsector = bm->migration_retry_nsector;
491         bm->bus->retry_unit = bm->migration_retry_unit;
492     }
493 
494     return 0;
495 }
496 
497 static const VMStateDescription vmstate_bmdma_current = {
498     .name = "ide bmdma_current",
499     .version_id = 1,
500     .minimum_version_id = 1,
501     .needed = ide_bmdma_current_needed,
502     .fields = (const VMStateField[]) {
503         VMSTATE_UINT32(cur_addr, BMDMAState),
504         VMSTATE_UINT32(cur_prd_last, BMDMAState),
505         VMSTATE_UINT32(cur_prd_addr, BMDMAState),
506         VMSTATE_UINT32(cur_prd_len, BMDMAState),
507         VMSTATE_END_OF_LIST()
508     }
509 };
510 
511 static const VMStateDescription vmstate_bmdma_status = {
512     .name ="ide bmdma/status",
513     .version_id = 1,
514     .minimum_version_id = 1,
515     .needed = ide_bmdma_status_needed,
516     .fields = (const VMStateField[]) {
517         VMSTATE_UINT8(status, BMDMAState),
518         VMSTATE_END_OF_LIST()
519     }
520 };
521 
522 static const VMStateDescription vmstate_bmdma = {
523     .name = "ide bmdma",
524     .version_id = 3,
525     .minimum_version_id = 0,
526     .pre_save  = ide_bmdma_pre_save,
527     .fields = (const VMStateField[]) {
528         VMSTATE_UINT8(cmd, BMDMAState),
529         VMSTATE_UINT8(migration_compat_status, BMDMAState),
530         VMSTATE_UINT32(addr, BMDMAState),
531         VMSTATE_INT64(migration_retry_sector_num, BMDMAState),
532         VMSTATE_UINT32(migration_retry_nsector, BMDMAState),
533         VMSTATE_UINT8(migration_retry_unit, BMDMAState),
534         VMSTATE_END_OF_LIST()
535     },
536     .subsections = (const VMStateDescription * const []) {
537         &vmstate_bmdma_current,
538         &vmstate_bmdma_status,
539         NULL
540     }
541 };
542 
ide_pci_post_load(void * opaque,int version_id)543 static int ide_pci_post_load(void *opaque, int version_id)
544 {
545     PCIIDEState *d = opaque;
546     int i;
547 
548     for(i = 0; i < 2; i++) {
549         /* current versions always store 0/1, but older version
550            stored bigger values. We only need last bit */
551         d->bmdma[i].migration_retry_unit &= 1;
552         ide_bmdma_post_load(&d->bmdma[i], -1);
553     }
554 
555     return 0;
556 }
557 
558 const VMStateDescription vmstate_ide_pci = {
559     .name = "ide",
560     .version_id = 3,
561     .minimum_version_id = 0,
562     .post_load = ide_pci_post_load,
563     .fields = (const VMStateField[]) {
564         VMSTATE_PCI_DEVICE(parent_obj, PCIIDEState),
565         VMSTATE_STRUCT_ARRAY(bmdma, PCIIDEState, 2, 0,
566                              vmstate_bmdma, BMDMAState),
567         VMSTATE_IDE_BUS_ARRAY(bus, PCIIDEState, 2),
568         VMSTATE_IDE_DRIVES(bus[0].ifs, PCIIDEState),
569         VMSTATE_IDE_DRIVES(bus[1].ifs, PCIIDEState),
570         VMSTATE_END_OF_LIST()
571     }
572 };
573 
574 /* hd_table must contain 4 block drivers */
pci_ide_create_devs(PCIDevice * dev)575 void pci_ide_create_devs(PCIDevice *dev)
576 {
577     PCIIDEState *d = PCI_IDE(dev);
578     DriveInfo *hd_table[2 * MAX_IDE_DEVS];
579     static const int bus[4]  = { 0, 0, 1, 1 };
580     static const int unit[4] = { 0, 1, 0, 1 };
581     int i;
582 
583     ide_drive_get(hd_table, ARRAY_SIZE(hd_table));
584     for (i = 0; i < 4; i++) {
585         if (hd_table[i]) {
586             ide_bus_create_drive(d->bus + bus[i], unit[i], hd_table[i]);
587         }
588     }
589 }
590 
591 static const struct IDEDMAOps bmdma_ops = {
592     .start_dma = bmdma_start_dma,
593     .prepare_buf = bmdma_prepare_buf,
594     .rw_buf = bmdma_rw_buf,
595     .restart_dma = bmdma_restart_dma,
596     .set_inactive = bmdma_set_inactive,
597     .reset = bmdma_reset,
598 };
599 
bmdma_init(IDEBus * bus,BMDMAState * bm,PCIIDEState * d)600 void bmdma_init(IDEBus *bus, BMDMAState *bm, PCIIDEState *d)
601 {
602     if (bus->dma == &bm->dma) {
603         return;
604     }
605 
606     bm->dma.ops = &bmdma_ops;
607     bus->dma = &bm->dma;
608     bm->irq = bus->irq;
609     bus->irq = qemu_allocate_irq(bmdma_irq, bm, 0);
610     bm->bus = bus;
611     bm->pci_dev = d;
612 }
613 
pci_ide_init(Object * obj)614 static void pci_ide_init(Object *obj)
615 {
616     PCIIDEState *d = PCI_IDE(obj);
617 
618     qdev_init_gpio_out_named(DEVICE(d), d->isa_irq, "isa-irq",
619                              ARRAY_SIZE(d->isa_irq));
620 }
621 
622 static const TypeInfo pci_ide_type_info = {
623     .name = TYPE_PCI_IDE,
624     .parent = TYPE_PCI_DEVICE,
625     .instance_size = sizeof(PCIIDEState),
626     .instance_init = pci_ide_init,
627     .abstract = true,
628     .interfaces = (InterfaceInfo[]) {
629         { INTERFACE_CONVENTIONAL_PCI_DEVICE },
630         { },
631     },
632 };
633 
pci_ide_register_types(void)634 static void pci_ide_register_types(void)
635 {
636     type_register_static(&pci_ide_type_info);
637 }
638 
639 type_init(pci_ide_register_types)
640