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b823f98f SW |
1 | /* |
2 | * OpenPIC emulation | |
3 | * | |
4 | * Copyright (c) 2004 Jocelyn Mayer | |
5 | * 2011 Alexander Graf | |
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 | * | |
27 | * Based on OpenPic implementations: | |
28 | * - Intel GW80314 I/O companion chip developer's manual | |
29 | * - Motorola MPC8245 & MPC8540 user manuals. | |
30 | * - Motorola MCP750 (aka Raven) programmer manual. | |
31 | * - Motorola Harrier programmer manuel | |
32 | * | |
33 | * Serial interrupts, as implemented in Raven chipset are not supported yet. | |
34 | * | |
35 | */ | |
36 | #include "hw.h" | |
37 | #include "ppc/mac.h" | |
38 | #include "pci/pci.h" | |
39 | #include "openpic.h" | |
40 | #include "sysbus.h" | |
41 | #include "pci/msi.h" | |
42 | #include "qemu/bitops.h" | |
43 | #include "ppc.h" | |
44 | ||
45 | //#define DEBUG_OPENPIC | |
46 | ||
47 | #ifdef DEBUG_OPENPIC | |
48 | static const int debug_openpic = 1; | |
49 | #else | |
50 | static const int debug_openpic = 0; | |
51 | #endif | |
52 | ||
53 | #define DPRINTF(fmt, ...) do { \ | |
54 | if (debug_openpic) { \ | |
55 | printf(fmt , ## __VA_ARGS__); \ | |
56 | } \ | |
57 | } while (0) | |
58 | ||
59 | #define MAX_CPU 32 | |
60 | #define MAX_SRC 256 | |
61 | #define MAX_TMR 4 | |
62 | #define MAX_IPI 4 | |
63 | #define MAX_MSI 8 | |
64 | #define MAX_IRQ (MAX_SRC + MAX_IPI + MAX_TMR) | |
65 | #define VID 0x03 /* MPIC version ID */ | |
66 | ||
67 | /* OpenPIC capability flags */ | |
68 | #define OPENPIC_FLAG_IDR_CRIT (1 << 0) | |
69 | #define OPENPIC_FLAG_ILR (2 << 0) | |
70 | ||
71 | /* OpenPIC address map */ | |
72 | #define OPENPIC_GLB_REG_START 0x0 | |
73 | #define OPENPIC_GLB_REG_SIZE 0x10F0 | |
74 | #define OPENPIC_TMR_REG_START 0x10F0 | |
75 | #define OPENPIC_TMR_REG_SIZE 0x220 | |
76 | #define OPENPIC_MSI_REG_START 0x1600 | |
77 | #define OPENPIC_MSI_REG_SIZE 0x200 | |
78 | #define OPENPIC_SUMMARY_REG_START 0x3800 | |
79 | #define OPENPIC_SUMMARY_REG_SIZE 0x800 | |
80 | #define OPENPIC_SRC_REG_START 0x10000 | |
81 | #define OPENPIC_SRC_REG_SIZE (MAX_SRC * 0x20) | |
82 | #define OPENPIC_CPU_REG_START 0x20000 | |
83 | #define OPENPIC_CPU_REG_SIZE 0x100 + ((MAX_CPU - 1) * 0x1000) | |
84 | ||
85 | /* Raven */ | |
86 | #define RAVEN_MAX_CPU 2 | |
87 | #define RAVEN_MAX_EXT 48 | |
88 | #define RAVEN_MAX_IRQ 64 | |
89 | #define RAVEN_MAX_TMR MAX_TMR | |
90 | #define RAVEN_MAX_IPI MAX_IPI | |
91 | ||
92 | /* Interrupt definitions */ | |
93 | #define RAVEN_FE_IRQ (RAVEN_MAX_EXT) /* Internal functional IRQ */ | |
94 | #define RAVEN_ERR_IRQ (RAVEN_MAX_EXT + 1) /* Error IRQ */ | |
95 | #define RAVEN_TMR_IRQ (RAVEN_MAX_EXT + 2) /* First timer IRQ */ | |
96 | #define RAVEN_IPI_IRQ (RAVEN_TMR_IRQ + RAVEN_MAX_TMR) /* First IPI IRQ */ | |
97 | /* First doorbell IRQ */ | |
98 | #define RAVEN_DBL_IRQ (RAVEN_IPI_IRQ + (RAVEN_MAX_CPU * RAVEN_MAX_IPI)) | |
99 | ||
100 | typedef struct FslMpicInfo { | |
101 | int max_ext; | |
102 | } FslMpicInfo; | |
103 | ||
104 | static FslMpicInfo fsl_mpic_20 = { | |
105 | .max_ext = 12, | |
106 | }; | |
107 | ||
108 | static FslMpicInfo fsl_mpic_42 = { | |
109 | .max_ext = 12, | |
110 | }; | |
111 | ||
112 | #define FRR_NIRQ_SHIFT 16 | |
113 | #define FRR_NCPU_SHIFT 8 | |
114 | #define FRR_VID_SHIFT 0 | |
115 | ||
116 | #define VID_REVISION_1_2 2 | |
117 | #define VID_REVISION_1_3 3 | |
118 | ||
119 | #define VIR_GENERIC 0x00000000 /* Generic Vendor ID */ | |
120 | ||
121 | #define GCR_RESET 0x80000000 | |
122 | #define GCR_MODE_PASS 0x00000000 | |
123 | #define GCR_MODE_MIXED 0x20000000 | |
124 | #define GCR_MODE_PROXY 0x60000000 | |
125 | ||
126 | #define TBCR_CI 0x80000000 /* count inhibit */ | |
127 | #define TCCR_TOG 0x80000000 /* toggles when decrement to zero */ | |
128 | ||
129 | #define IDR_EP_SHIFT 31 | |
130 | #define IDR_EP_MASK (1 << IDR_EP_SHIFT) | |
131 | #define IDR_CI0_SHIFT 30 | |
132 | #define IDR_CI1_SHIFT 29 | |
133 | #define IDR_P1_SHIFT 1 | |
134 | #define IDR_P0_SHIFT 0 | |
135 | ||
136 | #define ILR_INTTGT_MASK 0x000000ff | |
137 | #define ILR_INTTGT_INT 0x00 | |
138 | #define ILR_INTTGT_CINT 0x01 /* critical */ | |
139 | #define ILR_INTTGT_MCP 0x02 /* machine check */ | |
140 | ||
141 | /* The currently supported INTTGT values happen to be the same as QEMU's | |
142 | * openpic output codes, but don't depend on this. The output codes | |
143 | * could change (unlikely, but...) or support could be added for | |
144 | * more INTTGT values. | |
145 | */ | |
146 | static const int inttgt_output[][2] = { | |
147 | {ILR_INTTGT_INT, OPENPIC_OUTPUT_INT}, | |
148 | {ILR_INTTGT_CINT, OPENPIC_OUTPUT_CINT}, | |
149 | {ILR_INTTGT_MCP, OPENPIC_OUTPUT_MCK}, | |
150 | }; | |
151 | ||
152 | static int inttgt_to_output(int inttgt) | |
153 | { | |
154 | int i; | |
155 | ||
156 | for (i = 0; i < ARRAY_SIZE(inttgt_output); i++) { | |
157 | if (inttgt_output[i][0] == inttgt) { | |
158 | return inttgt_output[i][1]; | |
159 | } | |
160 | } | |
161 | ||
162 | fprintf(stderr, "%s: unsupported inttgt %d\n", __func__, inttgt); | |
163 | return OPENPIC_OUTPUT_INT; | |
164 | } | |
165 | ||
166 | static int output_to_inttgt(int output) | |
167 | { | |
168 | int i; | |
169 | ||
170 | for (i = 0; i < ARRAY_SIZE(inttgt_output); i++) { | |
171 | if (inttgt_output[i][1] == output) { | |
172 | return inttgt_output[i][0]; | |
173 | } | |
174 | } | |
175 | ||
176 | abort(); | |
177 | } | |
178 | ||
179 | #define MSIIR_OFFSET 0x140 | |
180 | #define MSIIR_SRS_SHIFT 29 | |
181 | #define MSIIR_SRS_MASK (0x7 << MSIIR_SRS_SHIFT) | |
182 | #define MSIIR_IBS_SHIFT 24 | |
183 | #define MSIIR_IBS_MASK (0x1f << MSIIR_IBS_SHIFT) | |
184 | ||
185 | static int get_current_cpu(void) | |
186 | { | |
187 | CPUState *cpu_single_cpu; | |
188 | ||
189 | if (!cpu_single_env) { | |
190 | return -1; | |
191 | } | |
192 | ||
193 | cpu_single_cpu = ENV_GET_CPU(cpu_single_env); | |
194 | return cpu_single_cpu->cpu_index; | |
195 | } | |
196 | ||
197 | static uint32_t openpic_cpu_read_internal(void *opaque, hwaddr addr, int idx); | |
198 | static void openpic_cpu_write_internal(void *opaque, hwaddr addr, | |
199 | uint32_t val, int idx); | |
200 | ||
201 | typedef enum IRQType { | |
202 | IRQ_TYPE_NORMAL = 0, | |
203 | IRQ_TYPE_FSLINT, /* FSL internal interrupt -- level only */ | |
204 | IRQ_TYPE_FSLSPECIAL, /* FSL timer/IPI interrupt, edge, no polarity */ | |
205 | } IRQType; | |
206 | ||
207 | typedef struct IRQQueue { | |
208 | /* Round up to the nearest 64 IRQs so that the queue length | |
209 | * won't change when moving between 32 and 64 bit hosts. | |
210 | */ | |
211 | unsigned long queue[BITS_TO_LONGS((MAX_IRQ + 63) & ~63)]; | |
212 | int next; | |
213 | int priority; | |
214 | } IRQQueue; | |
215 | ||
216 | typedef struct IRQSource { | |
217 | uint32_t ivpr; /* IRQ vector/priority register */ | |
218 | uint32_t idr; /* IRQ destination register */ | |
219 | uint32_t destmask; /* bitmap of CPU destinations */ | |
220 | int last_cpu; | |
221 | int output; /* IRQ level, e.g. OPENPIC_OUTPUT_INT */ | |
222 | int pending; /* TRUE if IRQ is pending */ | |
223 | IRQType type; | |
224 | bool level:1; /* level-triggered */ | |
225 | bool nomask:1; /* critical interrupts ignore mask on some FSL MPICs */ | |
226 | } IRQSource; | |
227 | ||
228 | #define IVPR_MASK_SHIFT 31 | |
229 | #define IVPR_MASK_MASK (1 << IVPR_MASK_SHIFT) | |
230 | #define IVPR_ACTIVITY_SHIFT 30 | |
231 | #define IVPR_ACTIVITY_MASK (1 << IVPR_ACTIVITY_SHIFT) | |
232 | #define IVPR_MODE_SHIFT 29 | |
233 | #define IVPR_MODE_MASK (1 << IVPR_MODE_SHIFT) | |
234 | #define IVPR_POLARITY_SHIFT 23 | |
235 | #define IVPR_POLARITY_MASK (1 << IVPR_POLARITY_SHIFT) | |
236 | #define IVPR_SENSE_SHIFT 22 | |
237 | #define IVPR_SENSE_MASK (1 << IVPR_SENSE_SHIFT) | |
238 | ||
239 | #define IVPR_PRIORITY_MASK (0xF << 16) | |
240 | #define IVPR_PRIORITY(_ivprr_) ((int)(((_ivprr_) & IVPR_PRIORITY_MASK) >> 16)) | |
241 | #define IVPR_VECTOR(opp, _ivprr_) ((_ivprr_) & (opp)->vector_mask) | |
242 | ||
243 | /* IDR[EP/CI] are only for FSL MPIC prior to v4.0 */ | |
244 | #define IDR_EP 0x80000000 /* external pin */ | |
245 | #define IDR_CI 0x40000000 /* critical interrupt */ | |
246 | ||
247 | typedef struct IRQDest { | |
248 | int32_t ctpr; /* CPU current task priority */ | |
249 | IRQQueue raised; | |
250 | IRQQueue servicing; | |
251 | qemu_irq *irqs; | |
252 | ||
253 | /* Count of IRQ sources asserting on non-INT outputs */ | |
254 | uint32_t outputs_active[OPENPIC_OUTPUT_NB]; | |
255 | } IRQDest; | |
256 | ||
257 | typedef struct OpenPICState { | |
258 | SysBusDevice busdev; | |
259 | MemoryRegion mem; | |
260 | ||
261 | /* Behavior control */ | |
262 | FslMpicInfo *fsl; | |
263 | uint32_t model; | |
264 | uint32_t flags; | |
265 | uint32_t nb_irqs; | |
266 | uint32_t vid; | |
267 | uint32_t vir; /* Vendor identification register */ | |
268 | uint32_t vector_mask; | |
269 | uint32_t tfrr_reset; | |
270 | uint32_t ivpr_reset; | |
271 | uint32_t idr_reset; | |
272 | uint32_t brr1; | |
273 | uint32_t mpic_mode_mask; | |
274 | ||
275 | /* Sub-regions */ | |
276 | MemoryRegion sub_io_mem[6]; | |
277 | ||
278 | /* Global registers */ | |
279 | uint32_t frr; /* Feature reporting register */ | |
280 | uint32_t gcr; /* Global configuration register */ | |
281 | uint32_t pir; /* Processor initialization register */ | |
282 | uint32_t spve; /* Spurious vector register */ | |
283 | uint32_t tfrr; /* Timer frequency reporting register */ | |
284 | /* Source registers */ | |
285 | IRQSource src[MAX_IRQ]; | |
286 | /* Local registers per output pin */ | |
287 | IRQDest dst[MAX_CPU]; | |
288 | uint32_t nb_cpus; | |
289 | /* Timer registers */ | |
290 | struct { | |
291 | uint32_t tccr; /* Global timer current count register */ | |
292 | uint32_t tbcr; /* Global timer base count register */ | |
293 | } timers[MAX_TMR]; | |
294 | /* Shared MSI registers */ | |
295 | struct { | |
296 | uint32_t msir; /* Shared Message Signaled Interrupt Register */ | |
297 | } msi[MAX_MSI]; | |
298 | uint32_t max_irq; | |
299 | uint32_t irq_ipi0; | |
300 | uint32_t irq_tim0; | |
301 | uint32_t irq_msi; | |
302 | } OpenPICState; | |
303 | ||
304 | static inline void IRQ_setbit(IRQQueue * q, int n_IRQ) | |
305 | { | |
306 | set_bit(n_IRQ, q->queue); | |
307 | } | |
308 | ||
309 | static inline void IRQ_resetbit(IRQQueue * q, int n_IRQ) | |
310 | { | |
311 | clear_bit(n_IRQ, q->queue); | |
312 | } | |
313 | ||
314 | static inline int IRQ_testbit(IRQQueue * q, int n_IRQ) | |
315 | { | |
316 | return test_bit(n_IRQ, q->queue); | |
317 | } | |
318 | ||
319 | static void IRQ_check(OpenPICState * opp, IRQQueue * q) | |
320 | { | |
321 | int irq = -1; | |
322 | int next = -1; | |
323 | int priority = -1; | |
324 | ||
325 | for (;;) { | |
326 | irq = find_next_bit(q->queue, opp->max_irq, irq + 1); | |
327 | if (irq == opp->max_irq) { | |
328 | break; | |
329 | } | |
330 | ||
331 | DPRINTF("IRQ_check: irq %d set ivpr_pr=%d pr=%d\n", | |
332 | irq, IVPR_PRIORITY(opp->src[irq].ivpr), priority); | |
333 | ||
334 | if (IVPR_PRIORITY(opp->src[irq].ivpr) > priority) { | |
335 | next = irq; | |
336 | priority = IVPR_PRIORITY(opp->src[irq].ivpr); | |
337 | } | |
338 | } | |
339 | ||
340 | q->next = next; | |
341 | q->priority = priority; | |
342 | } | |
343 | ||
344 | static int IRQ_get_next(OpenPICState * opp, IRQQueue * q) | |
345 | { | |
346 | /* XXX: optimize */ | |
347 | IRQ_check(opp, q); | |
348 | ||
349 | return q->next; | |
350 | } | |
351 | ||
352 | static void IRQ_local_pipe(OpenPICState * opp, int n_CPU, int n_IRQ, | |
353 | bool active, bool was_active) | |
354 | { | |
355 | IRQDest *dst; | |
356 | IRQSource *src; | |
357 | int priority; | |
358 | ||
359 | dst = &opp->dst[n_CPU]; | |
360 | src = &opp->src[n_IRQ]; | |
361 | ||
362 | DPRINTF("%s: IRQ %d active %d was %d\n", | |
363 | __func__, n_IRQ, active, was_active); | |
364 | ||
365 | if (src->output != OPENPIC_OUTPUT_INT) { | |
366 | DPRINTF("%s: output %d irq %d active %d was %d count %d\n", | |
367 | __func__, src->output, n_IRQ, active, was_active, | |
368 | dst->outputs_active[src->output]); | |
369 | ||
370 | /* On Freescale MPIC, critical interrupts ignore priority, | |
371 | * IACK, EOI, etc. Before MPIC v4.1 they also ignore | |
372 | * masking. | |
373 | */ | |
374 | if (active) { | |
375 | if (!was_active | |
376 | && dst->outputs_active[src->output]++ == 0) { | |
377 | DPRINTF | |
378 | ("%s: Raise OpenPIC output %d cpu %d irq %d\n", | |
379 | __func__, src->output, n_CPU, n_IRQ); | |
380 | qemu_irq_raise(dst->irqs[src->output]); | |
381 | } | |
382 | } else { | |
383 | if (was_active | |
384 | && --dst->outputs_active[src->output] == 0) { | |
385 | DPRINTF | |
386 | ("%s: Lower OpenPIC output %d cpu %d irq %d\n", | |
387 | __func__, src->output, n_CPU, n_IRQ); | |
388 | qemu_irq_lower(dst->irqs[src->output]); | |
389 | } | |
390 | } | |
391 | ||
392 | return; | |
393 | } | |
394 | ||
395 | priority = IVPR_PRIORITY(src->ivpr); | |
396 | ||
397 | /* Even if the interrupt doesn't have enough priority, | |
398 | * it is still raised, in case ctpr is lowered later. | |
399 | */ | |
400 | if (active) { | |
401 | IRQ_setbit(&dst->raised, n_IRQ); | |
402 | } else { | |
403 | IRQ_resetbit(&dst->raised, n_IRQ); | |
404 | } | |
405 | ||
406 | IRQ_check(opp, &dst->raised); | |
407 | ||
408 | if (active && priority <= dst->ctpr) { | |
409 | DPRINTF | |
410 | ("%s: IRQ %d priority %d too low for ctpr %d on CPU %d\n", | |
411 | __func__, n_IRQ, priority, dst->ctpr, n_CPU); | |
412 | active = 0; | |
413 | } | |
414 | ||
415 | if (active) { | |
416 | if (IRQ_get_next(opp, &dst->servicing) >= 0 && | |
417 | priority <= dst->servicing.priority) { | |
418 | DPRINTF | |
419 | ("%s: IRQ %d is hidden by servicing IRQ %d on CPU %d\n", | |
420 | __func__, n_IRQ, dst->servicing.next, n_CPU); | |
421 | } else { | |
422 | DPRINTF | |
423 | ("%s: Raise OpenPIC INT output cpu %d irq %d/%d\n", | |
424 | __func__, n_CPU, n_IRQ, dst->raised.next); | |
425 | qemu_irq_raise(opp->dst[n_CPU]. | |
426 | irqs[OPENPIC_OUTPUT_INT]); | |
427 | } | |
428 | } else { | |
429 | IRQ_get_next(opp, &dst->servicing); | |
430 | if (dst->raised.priority > dst->ctpr && | |
431 | dst->raised.priority > dst->servicing.priority) { | |
432 | DPRINTF | |
433 | ("%s: IRQ %d inactive, IRQ %d prio %d above %d/%d, CPU %d\n", | |
434 | __func__, n_IRQ, dst->raised.next, | |
435 | dst->raised.priority, dst->ctpr, | |
436 | dst->servicing.priority, n_CPU); | |
437 | /* IRQ line stays asserted */ | |
438 | } else { | |
439 | DPRINTF | |
440 | ("%s: IRQ %d inactive, current prio %d/%d, CPU %d\n", | |
441 | __func__, n_IRQ, dst->ctpr, | |
442 | dst->servicing.priority, n_CPU); | |
443 | qemu_irq_lower(opp->dst[n_CPU]. | |
444 | irqs[OPENPIC_OUTPUT_INT]); | |
445 | } | |
446 | } | |
447 | } | |
448 | ||
449 | /* update pic state because registers for n_IRQ have changed value */ | |
450 | static void openpic_update_irq(OpenPICState * opp, int n_IRQ) | |
451 | { | |
452 | IRQSource *src; | |
453 | bool active, was_active; | |
454 | int i; | |
455 | ||
456 | src = &opp->src[n_IRQ]; | |
457 | active = src->pending; | |
458 | ||
459 | if ((src->ivpr & IVPR_MASK_MASK) && !src->nomask) { | |
460 | /* Interrupt source is disabled */ | |
461 | DPRINTF("%s: IRQ %d is disabled\n", __func__, n_IRQ); | |
462 | active = false; | |
463 | } | |
464 | ||
465 | was_active = ! !(src->ivpr & IVPR_ACTIVITY_MASK); | |
466 | ||
467 | /* | |
468 | * We don't have a similar check for already-active because | |
469 | * ctpr may have changed and we need to withdraw the interrupt. | |
470 | */ | |
471 | if (!active && !was_active) { | |
472 | DPRINTF("%s: IRQ %d is already inactive\n", __func__, n_IRQ); | |
473 | return; | |
474 | } | |
475 | ||
476 | if (active) { | |
477 | src->ivpr |= IVPR_ACTIVITY_MASK; | |
478 | } else { | |
479 | src->ivpr &= ~IVPR_ACTIVITY_MASK; | |
480 | } | |
481 | ||
482 | if (src->destmask == 0) { | |
483 | /* No target */ | |
484 | DPRINTF("%s: IRQ %d has no target\n", __func__, n_IRQ); | |
485 | return; | |
486 | } | |
487 | ||
488 | if (src->destmask == (1 << src->last_cpu)) { | |
489 | /* Only one CPU is allowed to receive this IRQ */ | |
490 | IRQ_local_pipe(opp, src->last_cpu, n_IRQ, active, was_active); | |
491 | } else if (!(src->ivpr & IVPR_MODE_MASK)) { | |
492 | /* Directed delivery mode */ | |
493 | for (i = 0; i < opp->nb_cpus; i++) { | |
494 | if (src->destmask & (1 << i)) { | |
495 | IRQ_local_pipe(opp, i, n_IRQ, active, | |
496 | was_active); | |
497 | } | |
498 | } | |
499 | } else { | |
500 | /* Distributed delivery mode */ | |
501 | for (i = src->last_cpu + 1; i != src->last_cpu; i++) { | |
502 | if (i == opp->nb_cpus) { | |
503 | i = 0; | |
504 | } | |
505 | if (src->destmask & (1 << i)) { | |
506 | IRQ_local_pipe(opp, i, n_IRQ, active, | |
507 | was_active); | |
508 | src->last_cpu = i; | |
509 | break; | |
510 | } | |
511 | } | |
512 | } | |
513 | } | |
514 | ||
515 | static void openpic_set_irq(void *opaque, int n_IRQ, int level) | |
516 | { | |
517 | OpenPICState *opp = opaque; | |
518 | IRQSource *src; | |
519 | ||
520 | if (n_IRQ >= MAX_IRQ) { | |
521 | fprintf(stderr, "%s: IRQ %d out of range\n", __func__, n_IRQ); | |
522 | abort(); | |
523 | } | |
524 | ||
525 | src = &opp->src[n_IRQ]; | |
526 | DPRINTF("openpic: set irq %d = %d ivpr=0x%08x\n", | |
527 | n_IRQ, level, src->ivpr); | |
528 | if (src->level) { | |
529 | /* level-sensitive irq */ | |
530 | src->pending = level; | |
531 | openpic_update_irq(opp, n_IRQ); | |
532 | } else { | |
533 | /* edge-sensitive irq */ | |
534 | if (level) { | |
535 | src->pending = 1; | |
536 | openpic_update_irq(opp, n_IRQ); | |
537 | } | |
538 | ||
539 | if (src->output != OPENPIC_OUTPUT_INT) { | |
540 | /* Edge-triggered interrupts shouldn't be used | |
541 | * with non-INT delivery, but just in case, | |
542 | * try to make it do something sane rather than | |
543 | * cause an interrupt storm. This is close to | |
544 | * what you'd probably see happen in real hardware. | |
545 | */ | |
546 | src->pending = 0; | |
547 | openpic_update_irq(opp, n_IRQ); | |
548 | } | |
549 | } | |
550 | } | |
551 | ||
552 | static void openpic_reset(DeviceState * d) | |
553 | { | |
554 | OpenPICState *opp = FROM_SYSBUS(typeof(*opp), SYS_BUS_DEVICE(d)); | |
555 | int i; | |
556 | ||
557 | opp->gcr = GCR_RESET; | |
558 | /* Initialise controller registers */ | |
559 | opp->frr = ((opp->nb_irqs - 1) << FRR_NIRQ_SHIFT) | | |
560 | ((opp->nb_cpus - 1) << FRR_NCPU_SHIFT) | | |
561 | (opp->vid << FRR_VID_SHIFT); | |
562 | ||
563 | opp->pir = 0; | |
564 | opp->spve = -1 & opp->vector_mask; | |
565 | opp->tfrr = opp->tfrr_reset; | |
566 | /* Initialise IRQ sources */ | |
567 | for (i = 0; i < opp->max_irq; i++) { | |
568 | opp->src[i].ivpr = opp->ivpr_reset; | |
569 | opp->src[i].idr = opp->idr_reset; | |
570 | ||
571 | switch (opp->src[i].type) { | |
572 | case IRQ_TYPE_NORMAL: | |
573 | opp->src[i].level = | |
574 | ! !(opp->ivpr_reset & IVPR_SENSE_MASK); | |
575 | break; | |
576 | ||
577 | case IRQ_TYPE_FSLINT: | |
578 | opp->src[i].ivpr |= IVPR_POLARITY_MASK; | |
579 | break; | |
580 | ||
581 | case IRQ_TYPE_FSLSPECIAL: | |
582 | break; | |
583 | } | |
584 | } | |
585 | /* Initialise IRQ destinations */ | |
586 | for (i = 0; i < MAX_CPU; i++) { | |
587 | opp->dst[i].ctpr = 15; | |
588 | memset(&opp->dst[i].raised, 0, sizeof(IRQQueue)); | |
589 | opp->dst[i].raised.next = -1; | |
590 | memset(&opp->dst[i].servicing, 0, sizeof(IRQQueue)); | |
591 | opp->dst[i].servicing.next = -1; | |
592 | } | |
593 | /* Initialise timers */ | |
594 | for (i = 0; i < MAX_TMR; i++) { | |
595 | opp->timers[i].tccr = 0; | |
596 | opp->timers[i].tbcr = TBCR_CI; | |
597 | } | |
598 | /* Go out of RESET state */ | |
599 | opp->gcr = 0; | |
600 | } | |
601 | ||
602 | static inline uint32_t read_IRQreg_idr(OpenPICState * opp, int n_IRQ) | |
603 | { | |
604 | return opp->src[n_IRQ].idr; | |
605 | } | |
606 | ||
607 | static inline uint32_t read_IRQreg_ilr(OpenPICState * opp, int n_IRQ) | |
608 | { | |
609 | if (opp->flags & OPENPIC_FLAG_ILR) { | |
610 | return output_to_inttgt(opp->src[n_IRQ].output); | |
611 | } | |
612 | ||
613 | return 0xffffffff; | |
614 | } | |
615 | ||
616 | static inline uint32_t read_IRQreg_ivpr(OpenPICState * opp, int n_IRQ) | |
617 | { | |
618 | return opp->src[n_IRQ].ivpr; | |
619 | } | |
620 | ||
621 | static inline void write_IRQreg_idr(OpenPICState * opp, int n_IRQ, uint32_t val) | |
622 | { | |
623 | IRQSource *src = &opp->src[n_IRQ]; | |
624 | uint32_t normal_mask = (1UL << opp->nb_cpus) - 1; | |
625 | uint32_t crit_mask = 0; | |
626 | uint32_t mask = normal_mask; | |
627 | int crit_shift = IDR_EP_SHIFT - opp->nb_cpus; | |
628 | int i; | |
629 | ||
630 | if (opp->flags & OPENPIC_FLAG_IDR_CRIT) { | |
631 | crit_mask = mask << crit_shift; | |
632 | mask |= crit_mask | IDR_EP; | |
633 | } | |
634 | ||
635 | src->idr = val & mask; | |
636 | DPRINTF("Set IDR %d to 0x%08x\n", n_IRQ, src->idr); | |
637 | ||
638 | if (opp->flags & OPENPIC_FLAG_IDR_CRIT) { | |
639 | if (src->idr & crit_mask) { | |
640 | if (src->idr & normal_mask) { | |
641 | DPRINTF | |
642 | ("%s: IRQ configured for multiple output types, using " | |
643 | "critical\n", __func__); | |
644 | } | |
645 | ||
646 | src->output = OPENPIC_OUTPUT_CINT; | |
647 | src->nomask = true; | |
648 | src->destmask = 0; | |
649 | ||
650 | for (i = 0; i < opp->nb_cpus; i++) { | |
651 | int n_ci = IDR_CI0_SHIFT - i; | |
652 | ||
653 | if (src->idr & (1UL << n_ci)) { | |
654 | src->destmask |= 1UL << i; | |
655 | } | |
656 | } | |
657 | } else { | |
658 | src->output = OPENPIC_OUTPUT_INT; | |
659 | src->nomask = false; | |
660 | src->destmask = src->idr & normal_mask; | |
661 | } | |
662 | } else { | |
663 | src->destmask = src->idr; | |
664 | } | |
665 | } | |
666 | ||
667 | static inline void write_IRQreg_ilr(OpenPICState * opp, int n_IRQ, uint32_t val) | |
668 | { | |
669 | if (opp->flags & OPENPIC_FLAG_ILR) { | |
670 | IRQSource *src = &opp->src[n_IRQ]; | |
671 | ||
672 | src->output = inttgt_to_output(val & ILR_INTTGT_MASK); | |
673 | DPRINTF("Set ILR %d to 0x%08x, output %d\n", n_IRQ, src->idr, | |
674 | src->output); | |
675 | ||
676 | /* TODO: on MPIC v4.0 only, set nomask for non-INT */ | |
677 | } | |
678 | } | |
679 | ||
680 | static inline void write_IRQreg_ivpr(OpenPICState * opp, int n_IRQ, | |
681 | uint32_t val) | |
682 | { | |
683 | uint32_t mask; | |
684 | ||
685 | /* NOTE when implementing newer FSL MPIC models: starting with v4.0, | |
686 | * the polarity bit is read-only on internal interrupts. | |
687 | */ | |
688 | mask = IVPR_MASK_MASK | IVPR_PRIORITY_MASK | IVPR_SENSE_MASK | | |
689 | IVPR_POLARITY_MASK | opp->vector_mask; | |
690 | ||
691 | /* ACTIVITY bit is read-only */ | |
692 | opp->src[n_IRQ].ivpr = | |
693 | (opp->src[n_IRQ].ivpr & IVPR_ACTIVITY_MASK) | (val & mask); | |
694 | ||
695 | /* For FSL internal interrupts, The sense bit is reserved and zero, | |
696 | * and the interrupt is always level-triggered. Timers and IPIs | |
697 | * have no sense or polarity bits, and are edge-triggered. | |
698 | */ | |
699 | switch (opp->src[n_IRQ].type) { | |
700 | case IRQ_TYPE_NORMAL: | |
701 | opp->src[n_IRQ].level = | |
702 | ! !(opp->src[n_IRQ].ivpr & IVPR_SENSE_MASK); | |
703 | break; | |
704 | ||
705 | case IRQ_TYPE_FSLINT: | |
706 | opp->src[n_IRQ].ivpr &= ~IVPR_SENSE_MASK; | |
707 | break; | |
708 | ||
709 | case IRQ_TYPE_FSLSPECIAL: | |
710 | opp->src[n_IRQ].ivpr &= ~(IVPR_POLARITY_MASK | IVPR_SENSE_MASK); | |
711 | break; | |
712 | } | |
713 | ||
714 | openpic_update_irq(opp, n_IRQ); | |
715 | DPRINTF("Set IVPR %d to 0x%08x -> 0x%08x\n", n_IRQ, val, | |
716 | opp->src[n_IRQ].ivpr); | |
717 | } | |
718 | ||
719 | static void openpic_gcr_write(OpenPICState * opp, uint64_t val) | |
720 | { | |
721 | bool mpic_proxy = false; | |
722 | ||
723 | if (val & GCR_RESET) { | |
724 | openpic_reset(&opp->busdev.qdev); | |
725 | return; | |
726 | } | |
727 | ||
728 | opp->gcr &= ~opp->mpic_mode_mask; | |
729 | opp->gcr |= val & opp->mpic_mode_mask; | |
730 | ||
731 | /* Set external proxy mode */ | |
732 | if ((val & opp->mpic_mode_mask) == GCR_MODE_PROXY) { | |
733 | mpic_proxy = true; | |
734 | } | |
735 | ||
736 | ppce500_set_mpic_proxy(mpic_proxy); | |
737 | } | |
738 | ||
739 | static void openpic_gbl_write(void *opaque, hwaddr addr, uint64_t val, | |
740 | unsigned len) | |
741 | { | |
742 | OpenPICState *opp = opaque; | |
743 | IRQDest *dst; | |
744 | int idx; | |
745 | ||
746 | DPRINTF("%s: addr %#" HWADDR_PRIx " <= %08" PRIx64 "\n", | |
747 | __func__, addr, val); | |
748 | if (addr & 0xF) { | |
749 | return; | |
750 | } | |
751 | switch (addr) { | |
752 | case 0x00: /* Block Revision Register1 (BRR1) is Readonly */ | |
753 | break; | |
754 | case 0x40: | |
755 | case 0x50: | |
756 | case 0x60: | |
757 | case 0x70: | |
758 | case 0x80: | |
759 | case 0x90: | |
760 | case 0xA0: | |
761 | case 0xB0: | |
762 | openpic_cpu_write_internal(opp, addr, val, get_current_cpu()); | |
763 | break; | |
764 | case 0x1000: /* FRR */ | |
765 | break; | |
766 | case 0x1020: /* GCR */ | |
767 | openpic_gcr_write(opp, val); | |
768 | break; | |
769 | case 0x1080: /* VIR */ | |
770 | break; | |
771 | case 0x1090: /* PIR */ | |
772 | for (idx = 0; idx < opp->nb_cpus; idx++) { | |
773 | if ((val & (1 << idx)) && !(opp->pir & (1 << idx))) { | |
774 | DPRINTF | |
775 | ("Raise OpenPIC RESET output for CPU %d\n", | |
776 | idx); | |
777 | dst = &opp->dst[idx]; | |
778 | qemu_irq_raise(dst->irqs[OPENPIC_OUTPUT_RESET]); | |
779 | } else if (!(val & (1 << idx)) | |
780 | && (opp->pir & (1 << idx))) { | |
781 | DPRINTF | |
782 | ("Lower OpenPIC RESET output for CPU %d\n", | |
783 | idx); | |
784 | dst = &opp->dst[idx]; | |
785 | qemu_irq_lower(dst->irqs[OPENPIC_OUTPUT_RESET]); | |
786 | } | |
787 | } | |
788 | opp->pir = val; | |
789 | break; | |
790 | case 0x10A0: /* IPI_IVPR */ | |
791 | case 0x10B0: | |
792 | case 0x10C0: | |
793 | case 0x10D0: | |
794 | { | |
795 | int idx; | |
796 | idx = (addr - 0x10A0) >> 4; | |
797 | write_IRQreg_ivpr(opp, opp->irq_ipi0 + idx, val); | |
798 | } | |
799 | break; | |
800 | case 0x10E0: /* SPVE */ | |
801 | opp->spve = val & opp->vector_mask; | |
802 | break; | |
803 | default: | |
804 | break; | |
805 | } | |
806 | } | |
807 | ||
808 | static uint64_t openpic_gbl_read(void *opaque, hwaddr addr, unsigned len) | |
809 | { | |
810 | OpenPICState *opp = opaque; | |
811 | uint32_t retval; | |
812 | ||
813 | DPRINTF("%s: addr %#" HWADDR_PRIx "\n", __func__, addr); | |
814 | retval = 0xFFFFFFFF; | |
815 | if (addr & 0xF) { | |
816 | return retval; | |
817 | } | |
818 | switch (addr) { | |
819 | case 0x1000: /* FRR */ | |
820 | retval = opp->frr; | |
821 | break; | |
822 | case 0x1020: /* GCR */ | |
823 | retval = opp->gcr; | |
824 | break; | |
825 | case 0x1080: /* VIR */ | |
826 | retval = opp->vir; | |
827 | break; | |
828 | case 0x1090: /* PIR */ | |
829 | retval = 0x00000000; | |
830 | break; | |
831 | case 0x00: /* Block Revision Register1 (BRR1) */ | |
832 | retval = opp->brr1; | |
833 | break; | |
834 | case 0x40: | |
835 | case 0x50: | |
836 | case 0x60: | |
837 | case 0x70: | |
838 | case 0x80: | |
839 | case 0x90: | |
840 | case 0xA0: | |
841 | case 0xB0: | |
842 | retval = | |
843 | openpic_cpu_read_internal(opp, addr, get_current_cpu()); | |
844 | break; | |
845 | case 0x10A0: /* IPI_IVPR */ | |
846 | case 0x10B0: | |
847 | case 0x10C0: | |
848 | case 0x10D0: | |
849 | { | |
850 | int idx; | |
851 | idx = (addr - 0x10A0) >> 4; | |
852 | retval = read_IRQreg_ivpr(opp, opp->irq_ipi0 + idx); | |
853 | } | |
854 | break; | |
855 | case 0x10E0: /* SPVE */ | |
856 | retval = opp->spve; | |
857 | break; | |
858 | default: | |
859 | break; | |
860 | } | |
861 | DPRINTF("%s: => 0x%08x\n", __func__, retval); | |
862 | ||
863 | return retval; | |
864 | } | |
865 | ||
866 | static void openpic_tmr_write(void *opaque, hwaddr addr, uint64_t val, | |
867 | unsigned len) | |
868 | { | |
869 | OpenPICState *opp = opaque; | |
870 | int idx; | |
871 | ||
872 | addr += 0x10f0; | |
873 | ||
874 | DPRINTF("%s: addr %#" HWADDR_PRIx " <= %08" PRIx64 "\n", | |
875 | __func__, addr, val); | |
876 | if (addr & 0xF) { | |
877 | return; | |
878 | } | |
879 | ||
880 | if (addr == 0x10f0) { | |
881 | /* TFRR */ | |
882 | opp->tfrr = val; | |
883 | return; | |
884 | } | |
885 | ||
886 | idx = (addr >> 6) & 0x3; | |
887 | addr = addr & 0x30; | |
888 | ||
889 | switch (addr & 0x30) { | |
890 | case 0x00: /* TCCR */ | |
891 | break; | |
892 | case 0x10: /* TBCR */ | |
893 | if ((opp->timers[idx].tccr & TCCR_TOG) != 0 && | |
894 | (val & TBCR_CI) == 0 && | |
895 | (opp->timers[idx].tbcr & TBCR_CI) != 0) { | |
896 | opp->timers[idx].tccr &= ~TCCR_TOG; | |
897 | } | |
898 | opp->timers[idx].tbcr = val; | |
899 | break; | |
900 | case 0x20: /* TVPR */ | |
901 | write_IRQreg_ivpr(opp, opp->irq_tim0 + idx, val); | |
902 | break; | |
903 | case 0x30: /* TDR */ | |
904 | write_IRQreg_idr(opp, opp->irq_tim0 + idx, val); | |
905 | break; | |
906 | } | |
907 | } | |
908 | ||
909 | static uint64_t openpic_tmr_read(void *opaque, hwaddr addr, unsigned len) | |
910 | { | |
911 | OpenPICState *opp = opaque; | |
912 | uint32_t retval = -1; | |
913 | int idx; | |
914 | ||
915 | DPRINTF("%s: addr %#" HWADDR_PRIx "\n", __func__, addr); | |
916 | if (addr & 0xF) { | |
917 | goto out; | |
918 | } | |
919 | idx = (addr >> 6) & 0x3; | |
920 | if (addr == 0x0) { | |
921 | /* TFRR */ | |
922 | retval = opp->tfrr; | |
923 | goto out; | |
924 | } | |
925 | switch (addr & 0x30) { | |
926 | case 0x00: /* TCCR */ | |
927 | retval = opp->timers[idx].tccr; | |
928 | break; | |
929 | case 0x10: /* TBCR */ | |
930 | retval = opp->timers[idx].tbcr; | |
931 | break; | |
932 | case 0x20: /* TIPV */ | |
933 | retval = read_IRQreg_ivpr(opp, opp->irq_tim0 + idx); | |
934 | break; | |
935 | case 0x30: /* TIDE (TIDR) */ | |
936 | retval = read_IRQreg_idr(opp, opp->irq_tim0 + idx); | |
937 | break; | |
938 | } | |
939 | ||
940 | out: | |
941 | DPRINTF("%s: => 0x%08x\n", __func__, retval); | |
942 | ||
943 | return retval; | |
944 | } | |
945 | ||
946 | static void openpic_src_write(void *opaque, hwaddr addr, uint64_t val, | |
947 | unsigned len) | |
948 | { | |
949 | OpenPICState *opp = opaque; | |
950 | int idx; | |
951 | ||
952 | DPRINTF("%s: addr %#" HWADDR_PRIx " <= %08" PRIx64 "\n", | |
953 | __func__, addr, val); | |
954 | ||
955 | addr = addr & 0xffff; | |
956 | idx = addr >> 5; | |
957 | ||
958 | switch (addr & 0x1f) { | |
959 | case 0x00: | |
960 | write_IRQreg_ivpr(opp, idx, val); | |
961 | break; | |
962 | case 0x10: | |
963 | write_IRQreg_idr(opp, idx, val); | |
964 | break; | |
965 | case 0x18: | |
966 | write_IRQreg_ilr(opp, idx, val); | |
967 | break; | |
968 | } | |
969 | } | |
970 | ||
971 | static uint64_t openpic_src_read(void *opaque, uint64_t addr, unsigned len) | |
972 | { | |
973 | OpenPICState *opp = opaque; | |
974 | uint32_t retval; | |
975 | int idx; | |
976 | ||
977 | DPRINTF("%s: addr %#" HWADDR_PRIx "\n", __func__, addr); | |
978 | retval = 0xFFFFFFFF; | |
979 | ||
980 | addr = addr & 0xffff; | |
981 | idx = addr >> 5; | |
982 | ||
983 | switch (addr & 0x1f) { | |
984 | case 0x00: | |
985 | retval = read_IRQreg_ivpr(opp, idx); | |
986 | break; | |
987 | case 0x10: | |
988 | retval = read_IRQreg_idr(opp, idx); | |
989 | break; | |
990 | case 0x18: | |
991 | retval = read_IRQreg_ilr(opp, idx); | |
992 | break; | |
993 | } | |
994 | ||
995 | DPRINTF("%s: => 0x%08x\n", __func__, retval); | |
996 | return retval; | |
997 | } | |
998 | ||
999 | static void openpic_msi_write(void *opaque, hwaddr addr, uint64_t val, | |
1000 | unsigned size) | |
1001 | { | |
1002 | OpenPICState *opp = opaque; | |
1003 | int idx = opp->irq_msi; | |
1004 | int srs, ibs; | |
1005 | ||
1006 | DPRINTF("%s: addr %#" HWADDR_PRIx " <= 0x%08" PRIx64 "\n", | |
1007 | __func__, addr, val); | |
1008 | if (addr & 0xF) { | |
1009 | return; | |
1010 | } | |
1011 | ||
1012 | switch (addr) { | |
1013 | case MSIIR_OFFSET: | |
1014 | srs = val >> MSIIR_SRS_SHIFT; | |
1015 | idx += srs; | |
1016 | ibs = (val & MSIIR_IBS_MASK) >> MSIIR_IBS_SHIFT; | |
1017 | opp->msi[srs].msir |= 1 << ibs; | |
1018 | openpic_set_irq(opp, idx, 1); | |
1019 | break; | |
1020 | default: | |
1021 | /* most registers are read-only, thus ignored */ | |
1022 | break; | |
1023 | } | |
1024 | } | |
1025 | ||
1026 | static uint64_t openpic_msi_read(void *opaque, hwaddr addr, unsigned size) | |
1027 | { | |
1028 | OpenPICState *opp = opaque; | |
1029 | uint64_t r = 0; | |
1030 | int i, srs; | |
1031 | ||
1032 | DPRINTF("%s: addr %#" HWADDR_PRIx "\n", __func__, addr); | |
1033 | if (addr & 0xF) { | |
1034 | return -1; | |
1035 | } | |
1036 | ||
1037 | srs = addr >> 4; | |
1038 | ||
1039 | switch (addr) { | |
1040 | case 0x00: | |
1041 | case 0x10: | |
1042 | case 0x20: | |
1043 | case 0x30: | |
1044 | case 0x40: | |
1045 | case 0x50: | |
1046 | case 0x60: | |
1047 | case 0x70: /* MSIRs */ | |
1048 | r = opp->msi[srs].msir; | |
1049 | /* Clear on read */ | |
1050 | opp->msi[srs].msir = 0; | |
1051 | openpic_set_irq(opp, opp->irq_msi + srs, 0); | |
1052 | break; | |
1053 | case 0x120: /* MSISR */ | |
1054 | for (i = 0; i < MAX_MSI; i++) { | |
1055 | r |= (opp->msi[i].msir ? 1 : 0) << i; | |
1056 | } | |
1057 | break; | |
1058 | } | |
1059 | ||
1060 | return r; | |
1061 | } | |
1062 | ||
1063 | static uint64_t openpic_summary_read(void *opaque, hwaddr addr, unsigned size) | |
1064 | { | |
1065 | uint64_t r = 0; | |
1066 | ||
1067 | DPRINTF("%s: addr %#" HWADDR_PRIx "\n", __func__, addr); | |
1068 | ||
1069 | /* TODO: EISR/EIMR */ | |
1070 | ||
1071 | return r; | |
1072 | } | |
1073 | ||
1074 | static void openpic_summary_write(void *opaque, hwaddr addr, uint64_t val, | |
1075 | unsigned size) | |
1076 | { | |
1077 | DPRINTF("%s: addr %#" HWADDR_PRIx " <= 0x%08" PRIx64 "\n", | |
1078 | __func__, addr, val); | |
1079 | ||
1080 | /* TODO: EISR/EIMR */ | |
1081 | } | |
1082 | ||
1083 | static void openpic_cpu_write_internal(void *opaque, hwaddr addr, | |
1084 | uint32_t val, int idx) | |
1085 | { | |
1086 | OpenPICState *opp = opaque; | |
1087 | IRQSource *src; | |
1088 | IRQDest *dst; | |
1089 | int s_IRQ, n_IRQ; | |
1090 | ||
1091 | DPRINTF("%s: cpu %d addr %#" HWADDR_PRIx " <= 0x%08x\n", __func__, idx, | |
1092 | addr, val); | |
1093 | ||
1094 | if (idx < 0) { | |
1095 | return; | |
1096 | } | |
1097 | ||
1098 | if (addr & 0xF) { | |
1099 | return; | |
1100 | } | |
1101 | dst = &opp->dst[idx]; | |
1102 | addr &= 0xFF0; | |
1103 | switch (addr) { | |
1104 | case 0x40: /* IPIDR */ | |
1105 | case 0x50: | |
1106 | case 0x60: | |
1107 | case 0x70: | |
1108 | idx = (addr - 0x40) >> 4; | |
1109 | /* we use IDE as mask which CPUs to deliver the IPI to still. */ | |
1110 | opp->src[opp->irq_ipi0 + idx].destmask |= val; | |
1111 | openpic_set_irq(opp, opp->irq_ipi0 + idx, 1); | |
1112 | openpic_set_irq(opp, opp->irq_ipi0 + idx, 0); | |
1113 | break; | |
1114 | case 0x80: /* CTPR */ | |
1115 | dst->ctpr = val & 0x0000000F; | |
1116 | ||
1117 | DPRINTF("%s: set CPU %d ctpr to %d, raised %d servicing %d\n", | |
1118 | __func__, idx, dst->ctpr, dst->raised.priority, | |
1119 | dst->servicing.priority); | |
1120 | ||
1121 | if (dst->raised.priority <= dst->ctpr) { | |
1122 | DPRINTF | |
1123 | ("%s: Lower OpenPIC INT output cpu %d due to ctpr\n", | |
1124 | __func__, idx); | |
1125 | qemu_irq_lower(dst->irqs[OPENPIC_OUTPUT_INT]); | |
1126 | } else if (dst->raised.priority > dst->servicing.priority) { | |
1127 | DPRINTF("%s: Raise OpenPIC INT output cpu %d irq %d\n", | |
1128 | __func__, idx, dst->raised.next); | |
1129 | qemu_irq_raise(dst->irqs[OPENPIC_OUTPUT_INT]); | |
1130 | } | |
1131 | ||
1132 | break; | |
1133 | case 0x90: /* WHOAMI */ | |
1134 | /* Read-only register */ | |
1135 | break; | |
1136 | case 0xA0: /* IACK */ | |
1137 | /* Read-only register */ | |
1138 | break; | |
1139 | case 0xB0: /* EOI */ | |
1140 | DPRINTF("EOI\n"); | |
1141 | s_IRQ = IRQ_get_next(opp, &dst->servicing); | |
1142 | ||
1143 | if (s_IRQ < 0) { | |
1144 | DPRINTF("%s: EOI with no interrupt in service\n", | |
1145 | __func__); | |
1146 | break; | |
1147 | } | |
1148 | ||
1149 | IRQ_resetbit(&dst->servicing, s_IRQ); | |
1150 | /* Set up next servicing IRQ */ | |
1151 | s_IRQ = IRQ_get_next(opp, &dst->servicing); | |
1152 | /* Check queued interrupts. */ | |
1153 | n_IRQ = IRQ_get_next(opp, &dst->raised); | |
1154 | src = &opp->src[n_IRQ]; | |
1155 | if (n_IRQ != -1 && | |
1156 | (s_IRQ == -1 || | |
1157 | IVPR_PRIORITY(src->ivpr) > dst->servicing.priority)) { | |
1158 | DPRINTF("Raise OpenPIC INT output cpu %d irq %d\n", | |
1159 | idx, n_IRQ); | |
1160 | qemu_irq_raise(opp->dst[idx].irqs[OPENPIC_OUTPUT_INT]); | |
1161 | } | |
1162 | break; | |
1163 | default: | |
1164 | break; | |
1165 | } | |
1166 | } | |
1167 | ||
1168 | static void openpic_cpu_write(void *opaque, hwaddr addr, uint64_t val, | |
1169 | unsigned len) | |
1170 | { | |
1171 | openpic_cpu_write_internal(opaque, addr, val, (addr & 0x1f000) >> 12); | |
1172 | } | |
1173 | ||
1174 | static uint32_t openpic_iack(OpenPICState * opp, IRQDest * dst, int cpu) | |
1175 | { | |
1176 | IRQSource *src; | |
1177 | int retval, irq; | |
1178 | ||
1179 | DPRINTF("Lower OpenPIC INT output\n"); | |
1180 | qemu_irq_lower(dst->irqs[OPENPIC_OUTPUT_INT]); | |
1181 | ||
1182 | irq = IRQ_get_next(opp, &dst->raised); | |
1183 | DPRINTF("IACK: irq=%d\n", irq); | |
1184 | ||
1185 | if (irq == -1) { | |
1186 | /* No more interrupt pending */ | |
1187 | return opp->spve; | |
1188 | } | |
1189 | ||
1190 | src = &opp->src[irq]; | |
1191 | if (!(src->ivpr & IVPR_ACTIVITY_MASK) || | |
1192 | !(IVPR_PRIORITY(src->ivpr) > dst->ctpr)) { | |
1193 | fprintf(stderr, "%s: bad raised IRQ %d ctpr %d ivpr 0x%08x\n", | |
1194 | __func__, irq, dst->ctpr, src->ivpr); | |
1195 | openpic_update_irq(opp, irq); | |
1196 | retval = opp->spve; | |
1197 | } else { | |
1198 | /* IRQ enter servicing state */ | |
1199 | IRQ_setbit(&dst->servicing, irq); | |
1200 | retval = IVPR_VECTOR(opp, src->ivpr); | |
1201 | } | |
1202 | ||
1203 | if (!src->level) { | |
1204 | /* edge-sensitive IRQ */ | |
1205 | src->ivpr &= ~IVPR_ACTIVITY_MASK; | |
1206 | src->pending = 0; | |
1207 | IRQ_resetbit(&dst->raised, irq); | |
1208 | } | |
1209 | ||
1210 | if ((irq >= opp->irq_ipi0) && (irq < (opp->irq_ipi0 + MAX_IPI))) { | |
1211 | src->destmask &= ~(1 << cpu); | |
1212 | if (src->destmask && !src->level) { | |
1213 | /* trigger on CPUs that didn't know about it yet */ | |
1214 | openpic_set_irq(opp, irq, 1); | |
1215 | openpic_set_irq(opp, irq, 0); | |
1216 | /* if all CPUs knew about it, set active bit again */ | |
1217 | src->ivpr |= IVPR_ACTIVITY_MASK; | |
1218 | } | |
1219 | } | |
1220 | ||
1221 | return retval; | |
1222 | } | |
1223 | ||
1224 | static uint32_t openpic_cpu_read_internal(void *opaque, hwaddr addr, int idx) | |
1225 | { | |
1226 | OpenPICState *opp = opaque; | |
1227 | IRQDest *dst; | |
1228 | uint32_t retval; | |
1229 | ||
1230 | DPRINTF("%s: cpu %d addr %#" HWADDR_PRIx "\n", __func__, idx, addr); | |
1231 | retval = 0xFFFFFFFF; | |
1232 | ||
1233 | if (idx < 0) { | |
1234 | return retval; | |
1235 | } | |
1236 | ||
1237 | if (addr & 0xF) { | |
1238 | return retval; | |
1239 | } | |
1240 | dst = &opp->dst[idx]; | |
1241 | addr &= 0xFF0; | |
1242 | switch (addr) { | |
1243 | case 0x80: /* CTPR */ | |
1244 | retval = dst->ctpr; | |
1245 | break; | |
1246 | case 0x90: /* WHOAMI */ | |
1247 | retval = idx; | |
1248 | break; | |
1249 | case 0xA0: /* IACK */ | |
1250 | retval = openpic_iack(opp, dst, idx); | |
1251 | break; | |
1252 | case 0xB0: /* EOI */ | |
1253 | retval = 0; | |
1254 | break; | |
1255 | default: | |
1256 | break; | |
1257 | } | |
1258 | DPRINTF("%s: => 0x%08x\n", __func__, retval); | |
1259 | ||
1260 | return retval; | |
1261 | } | |
1262 | ||
1263 | static uint64_t openpic_cpu_read(void *opaque, hwaddr addr, unsigned len) | |
1264 | { | |
1265 | return openpic_cpu_read_internal(opaque, addr, (addr & 0x1f000) >> 12); | |
1266 | } | |
1267 | ||
1268 | static const MemoryRegionOps openpic_glb_ops_le = { | |
1269 | .write = openpic_gbl_write, | |
1270 | .read = openpic_gbl_read, | |
1271 | .endianness = DEVICE_LITTLE_ENDIAN, | |
1272 | .impl = { | |
1273 | .min_access_size = 4, | |
1274 | .max_access_size = 4, | |
1275 | }, | |
1276 | }; | |
1277 | ||
1278 | static const MemoryRegionOps openpic_glb_ops_be = { | |
1279 | .write = openpic_gbl_write, | |
1280 | .read = openpic_gbl_read, | |
1281 | .endianness = DEVICE_BIG_ENDIAN, | |
1282 | .impl = { | |
1283 | .min_access_size = 4, | |
1284 | .max_access_size = 4, | |
1285 | }, | |
1286 | }; | |
1287 | ||
1288 | static const MemoryRegionOps openpic_tmr_ops_le = { | |
1289 | .write = openpic_tmr_write, | |
1290 | .read = openpic_tmr_read, | |
1291 | .endianness = DEVICE_LITTLE_ENDIAN, | |
1292 | .impl = { | |
1293 | .min_access_size = 4, | |
1294 | .max_access_size = 4, | |
1295 | }, | |
1296 | }; | |
1297 | ||
1298 | static const MemoryRegionOps openpic_tmr_ops_be = { | |
1299 | .write = openpic_tmr_write, | |
1300 | .read = openpic_tmr_read, | |
1301 | .endianness = DEVICE_BIG_ENDIAN, | |
1302 | .impl = { | |
1303 | .min_access_size = 4, | |
1304 | .max_access_size = 4, | |
1305 | }, | |
1306 | }; | |
1307 | ||
1308 | static const MemoryRegionOps openpic_cpu_ops_le = { | |
1309 | .write = openpic_cpu_write, | |
1310 | .read = openpic_cpu_read, | |
1311 | .endianness = DEVICE_LITTLE_ENDIAN, | |
1312 | .impl = { | |
1313 | .min_access_size = 4, | |
1314 | .max_access_size = 4, | |
1315 | }, | |
1316 | }; | |
1317 | ||
1318 | static const MemoryRegionOps openpic_cpu_ops_be = { | |
1319 | .write = openpic_cpu_write, | |
1320 | .read = openpic_cpu_read, | |
1321 | .endianness = DEVICE_BIG_ENDIAN, | |
1322 | .impl = { | |
1323 | .min_access_size = 4, | |
1324 | .max_access_size = 4, | |
1325 | }, | |
1326 | }; | |
1327 | ||
1328 | static const MemoryRegionOps openpic_src_ops_le = { | |
1329 | .write = openpic_src_write, | |
1330 | .read = openpic_src_read, | |
1331 | .endianness = DEVICE_LITTLE_ENDIAN, | |
1332 | .impl = { | |
1333 | .min_access_size = 4, | |
1334 | .max_access_size = 4, | |
1335 | }, | |
1336 | }; | |
1337 | ||
1338 | static const MemoryRegionOps openpic_src_ops_be = { | |
1339 | .write = openpic_src_write, | |
1340 | .read = openpic_src_read, | |
1341 | .endianness = DEVICE_BIG_ENDIAN, | |
1342 | .impl = { | |
1343 | .min_access_size = 4, | |
1344 | .max_access_size = 4, | |
1345 | }, | |
1346 | }; | |
1347 | ||
1348 | static const MemoryRegionOps openpic_msi_ops_be = { | |
1349 | .read = openpic_msi_read, | |
1350 | .write = openpic_msi_write, | |
1351 | .endianness = DEVICE_BIG_ENDIAN, | |
1352 | .impl = { | |
1353 | .min_access_size = 4, | |
1354 | .max_access_size = 4, | |
1355 | }, | |
1356 | }; | |
1357 | ||
1358 | static const MemoryRegionOps openpic_summary_ops_be = { | |
1359 | .read = openpic_summary_read, | |
1360 | .write = openpic_summary_write, | |
1361 | .endianness = DEVICE_BIG_ENDIAN, | |
1362 | .impl = { | |
1363 | .min_access_size = 4, | |
1364 | .max_access_size = 4, | |
1365 | }, | |
1366 | }; | |
1367 | ||
1368 | static void openpic_save_IRQ_queue(QEMUFile * f, IRQQueue * q) | |
1369 | { | |
1370 | unsigned int i; | |
1371 | ||
1372 | for (i = 0; i < ARRAY_SIZE(q->queue); i++) { | |
1373 | /* Always put the lower half of a 64-bit long first, in case we | |
1374 | * restore on a 32-bit host. The least significant bits correspond | |
1375 | * to lower IRQ numbers in the bitmap. | |
1376 | */ | |
1377 | qemu_put_be32(f, (uint32_t) q->queue[i]); | |
1378 | #if LONG_MAX > 0x7FFFFFFF | |
1379 | qemu_put_be32(f, (uint32_t) (q->queue[i] >> 32)); | |
1380 | #endif | |
1381 | } | |
1382 | ||
1383 | qemu_put_sbe32s(f, &q->next); | |
1384 | qemu_put_sbe32s(f, &q->priority); | |
1385 | } | |
1386 | ||
1387 | static void openpic_save(QEMUFile * f, void *opaque) | |
1388 | { | |
1389 | OpenPICState *opp = (OpenPICState *) opaque; | |
1390 | unsigned int i; | |
1391 | ||
1392 | qemu_put_be32s(f, &opp->gcr); | |
1393 | qemu_put_be32s(f, &opp->vir); | |
1394 | qemu_put_be32s(f, &opp->pir); | |
1395 | qemu_put_be32s(f, &opp->spve); | |
1396 | qemu_put_be32s(f, &opp->tfrr); | |
1397 | ||
1398 | qemu_put_be32s(f, &opp->nb_cpus); | |
1399 | ||
1400 | for (i = 0; i < opp->nb_cpus; i++) { | |
1401 | qemu_put_sbe32s(f, &opp->dst[i].ctpr); | |
1402 | openpic_save_IRQ_queue(f, &opp->dst[i].raised); | |
1403 | openpic_save_IRQ_queue(f, &opp->dst[i].servicing); | |
1404 | qemu_put_buffer(f, (uint8_t *) & opp->dst[i].outputs_active, | |
1405 | sizeof(opp->dst[i].outputs_active)); | |
1406 | } | |
1407 | ||
1408 | for (i = 0; i < MAX_TMR; i++) { | |
1409 | qemu_put_be32s(f, &opp->timers[i].tccr); | |
1410 | qemu_put_be32s(f, &opp->timers[i].tbcr); | |
1411 | } | |
1412 | ||
1413 | for (i = 0; i < opp->max_irq; i++) { | |
1414 | qemu_put_be32s(f, &opp->src[i].ivpr); | |
1415 | qemu_put_be32s(f, &opp->src[i].idr); | |
1416 | qemu_get_be32s(f, &opp->src[i].destmask); | |
1417 | qemu_put_sbe32s(f, &opp->src[i].last_cpu); | |
1418 | qemu_put_sbe32s(f, &opp->src[i].pending); | |
1419 | } | |
1420 | } | |
1421 | ||
1422 | static void openpic_load_IRQ_queue(QEMUFile * f, IRQQueue * q) | |
1423 | { | |
1424 | unsigned int i; | |
1425 | ||
1426 | for (i = 0; i < ARRAY_SIZE(q->queue); i++) { | |
1427 | unsigned long val; | |
1428 | ||
1429 | val = qemu_get_be32(f); | |
1430 | #if LONG_MAX > 0x7FFFFFFF | |
1431 | val <<= 32; | |
1432 | val |= qemu_get_be32(f); | |
1433 | #endif | |
1434 | ||
1435 | q->queue[i] = val; | |
1436 | } | |
1437 | ||
1438 | qemu_get_sbe32s(f, &q->next); | |
1439 | qemu_get_sbe32s(f, &q->priority); | |
1440 | } | |
1441 | ||
1442 | static int openpic_load(QEMUFile * f, void *opaque, int version_id) | |
1443 | { | |
1444 | OpenPICState *opp = (OpenPICState *) opaque; | |
1445 | unsigned int i; | |
1446 | ||
1447 | if (version_id != 1) { | |
1448 | return -EINVAL; | |
1449 | } | |
1450 | ||
1451 | qemu_get_be32s(f, &opp->gcr); | |
1452 | qemu_get_be32s(f, &opp->vir); | |
1453 | qemu_get_be32s(f, &opp->pir); | |
1454 | qemu_get_be32s(f, &opp->spve); | |
1455 | qemu_get_be32s(f, &opp->tfrr); | |
1456 | ||
1457 | qemu_get_be32s(f, &opp->nb_cpus); | |
1458 | ||
1459 | for (i = 0; i < opp->nb_cpus; i++) { | |
1460 | qemu_get_sbe32s(f, &opp->dst[i].ctpr); | |
1461 | openpic_load_IRQ_queue(f, &opp->dst[i].raised); | |
1462 | openpic_load_IRQ_queue(f, &opp->dst[i].servicing); | |
1463 | qemu_get_buffer(f, (uint8_t *) & opp->dst[i].outputs_active, | |
1464 | sizeof(opp->dst[i].outputs_active)); | |
1465 | } | |
1466 | ||
1467 | for (i = 0; i < MAX_TMR; i++) { | |
1468 | qemu_get_be32s(f, &opp->timers[i].tccr); | |
1469 | qemu_get_be32s(f, &opp->timers[i].tbcr); | |
1470 | } | |
1471 | ||
1472 | for (i = 0; i < opp->max_irq; i++) { | |
1473 | uint32_t val; | |
1474 | ||
1475 | val = qemu_get_be32(f); | |
1476 | write_IRQreg_idr(opp, i, val); | |
1477 | val = qemu_get_be32(f); | |
1478 | write_IRQreg_ivpr(opp, i, val); | |
1479 | ||
1480 | qemu_get_be32s(f, &opp->src[i].ivpr); | |
1481 | qemu_get_be32s(f, &opp->src[i].idr); | |
1482 | qemu_get_be32s(f, &opp->src[i].destmask); | |
1483 | qemu_get_sbe32s(f, &opp->src[i].last_cpu); | |
1484 | qemu_get_sbe32s(f, &opp->src[i].pending); | |
1485 | } | |
1486 | ||
1487 | return 0; | |
1488 | } | |
1489 | ||
1490 | typedef struct MemReg { | |
1491 | const char *name; | |
1492 | MemoryRegionOps const *ops; | |
1493 | hwaddr start_addr; | |
1494 | ram_addr_t size; | |
1495 | } MemReg; | |
1496 | ||
1497 | static void fsl_common_init(OpenPICState * opp) | |
1498 | { | |
1499 | int i; | |
1500 | int virq = MAX_SRC; | |
1501 | ||
1502 | opp->vid = VID_REVISION_1_2; | |
1503 | opp->vir = VIR_GENERIC; | |
1504 | opp->vector_mask = 0xFFFF; | |
1505 | opp->tfrr_reset = 0; | |
1506 | opp->ivpr_reset = IVPR_MASK_MASK; | |
1507 | opp->idr_reset = 1 << 0; | |
1508 | opp->max_irq = MAX_IRQ; | |
1509 | ||
1510 | opp->irq_ipi0 = virq; | |
1511 | virq += MAX_IPI; | |
1512 | opp->irq_tim0 = virq; | |
1513 | virq += MAX_TMR; | |
1514 | ||
1515 | assert(virq <= MAX_IRQ); | |
1516 | ||
1517 | opp->irq_msi = 224; | |
1518 | ||
1519 | msi_supported = true; | |
1520 | for (i = 0; i < opp->fsl->max_ext; i++) { | |
1521 | opp->src[i].level = false; | |
1522 | } | |
1523 | ||
1524 | /* Internal interrupts, including message and MSI */ | |
1525 | for (i = 16; i < MAX_SRC; i++) { | |
1526 | opp->src[i].type = IRQ_TYPE_FSLINT; | |
1527 | opp->src[i].level = true; | |
1528 | } | |
1529 | ||
1530 | /* timers and IPIs */ | |
1531 | for (i = MAX_SRC; i < virq; i++) { | |
1532 | opp->src[i].type = IRQ_TYPE_FSLSPECIAL; | |
1533 | opp->src[i].level = false; | |
1534 | } | |
1535 | } | |
1536 | ||
1537 | static void map_list(OpenPICState * opp, const MemReg * list, int *count) | |
1538 | { | |
1539 | while (list->name) { | |
1540 | assert(*count < ARRAY_SIZE(opp->sub_io_mem)); | |
1541 | ||
1542 | memory_region_init_io(&opp->sub_io_mem[*count], list->ops, opp, | |
1543 | list->name, list->size); | |
1544 | ||
1545 | memory_region_add_subregion(&opp->mem, list->start_addr, | |
1546 | &opp->sub_io_mem[*count]); | |
1547 | ||
1548 | (*count)++; | |
1549 | list++; | |
1550 | } | |
1551 | } | |
1552 | ||
1553 | static int openpic_init(SysBusDevice * dev) | |
1554 | { | |
1555 | OpenPICState *opp = FROM_SYSBUS(typeof(*opp), dev); | |
1556 | int i, j; | |
1557 | int list_count = 0; | |
1558 | static const MemReg list_le[] = { | |
1559 | {"glb", &openpic_glb_ops_le, | |
1560 | OPENPIC_GLB_REG_START, OPENPIC_GLB_REG_SIZE}, | |
1561 | {"tmr", &openpic_tmr_ops_le, | |
1562 | OPENPIC_TMR_REG_START, OPENPIC_TMR_REG_SIZE}, | |
1563 | {"src", &openpic_src_ops_le, | |
1564 | OPENPIC_SRC_REG_START, OPENPIC_SRC_REG_SIZE}, | |
1565 | {"cpu", &openpic_cpu_ops_le, | |
1566 | OPENPIC_CPU_REG_START, OPENPIC_CPU_REG_SIZE}, | |
1567 | {NULL} | |
1568 | }; | |
1569 | static const MemReg list_be[] = { | |
1570 | {"glb", &openpic_glb_ops_be, | |
1571 | OPENPIC_GLB_REG_START, OPENPIC_GLB_REG_SIZE}, | |
1572 | {"tmr", &openpic_tmr_ops_be, | |
1573 | OPENPIC_TMR_REG_START, OPENPIC_TMR_REG_SIZE}, | |
1574 | {"src", &openpic_src_ops_be, | |
1575 | OPENPIC_SRC_REG_START, OPENPIC_SRC_REG_SIZE}, | |
1576 | {"cpu", &openpic_cpu_ops_be, | |
1577 | OPENPIC_CPU_REG_START, OPENPIC_CPU_REG_SIZE}, | |
1578 | {NULL} | |
1579 | }; | |
1580 | static const MemReg list_fsl[] = { | |
1581 | {"msi", &openpic_msi_ops_be, | |
1582 | OPENPIC_MSI_REG_START, OPENPIC_MSI_REG_SIZE}, | |
1583 | {"summary", &openpic_summary_ops_be, | |
1584 | OPENPIC_SUMMARY_REG_START, OPENPIC_SUMMARY_REG_SIZE}, | |
1585 | {NULL} | |
1586 | }; | |
1587 | ||
1588 | memory_region_init(&opp->mem, "openpic", 0x40000); | |
1589 | ||
1590 | switch (opp->model) { | |
1591 | case OPENPIC_MODEL_FSL_MPIC_20: | |
1592 | default: | |
1593 | opp->fsl = &fsl_mpic_20; | |
1594 | opp->brr1 = 0x00400200; | |
1595 | opp->flags |= OPENPIC_FLAG_IDR_CRIT; | |
1596 | opp->nb_irqs = 80; | |
1597 | opp->mpic_mode_mask = GCR_MODE_MIXED; | |
1598 | ||
1599 | fsl_common_init(opp); | |
1600 | map_list(opp, list_be, &list_count); | |
1601 | map_list(opp, list_fsl, &list_count); | |
1602 | ||
1603 | break; | |
1604 | ||
1605 | case OPENPIC_MODEL_FSL_MPIC_42: | |
1606 | opp->fsl = &fsl_mpic_42; | |
1607 | opp->brr1 = 0x00400402; | |
1608 | opp->flags |= OPENPIC_FLAG_ILR; | |
1609 | opp->nb_irqs = 196; | |
1610 | opp->mpic_mode_mask = GCR_MODE_PROXY; | |
1611 | ||
1612 | fsl_common_init(opp); | |
1613 | map_list(opp, list_be, &list_count); | |
1614 | map_list(opp, list_fsl, &list_count); | |
1615 | ||
1616 | break; | |
1617 | ||
1618 | case OPENPIC_MODEL_RAVEN: | |
1619 | opp->nb_irqs = RAVEN_MAX_EXT; | |
1620 | opp->vid = VID_REVISION_1_3; | |
1621 | opp->vir = VIR_GENERIC; | |
1622 | opp->vector_mask = 0xFF; | |
1623 | opp->tfrr_reset = 4160000; | |
1624 | opp->ivpr_reset = IVPR_MASK_MASK | IVPR_MODE_MASK; | |
1625 | opp->idr_reset = 0; | |
1626 | opp->max_irq = RAVEN_MAX_IRQ; | |
1627 | opp->irq_ipi0 = RAVEN_IPI_IRQ; | |
1628 | opp->irq_tim0 = RAVEN_TMR_IRQ; | |
1629 | opp->brr1 = -1; | |
1630 | opp->mpic_mode_mask = GCR_MODE_MIXED; | |
1631 | ||
1632 | /* Only UP supported today */ | |
1633 | if (opp->nb_cpus != 1) { | |
1634 | return -EINVAL; | |
1635 | } | |
1636 | ||
1637 | map_list(opp, list_le, &list_count); | |
1638 | break; | |
1639 | } | |
1640 | ||
1641 | for (i = 0; i < opp->nb_cpus; i++) { | |
1642 | opp->dst[i].irqs = g_new(qemu_irq, OPENPIC_OUTPUT_NB); | |
1643 | for (j = 0; j < OPENPIC_OUTPUT_NB; j++) { | |
1644 | sysbus_init_irq(dev, &opp->dst[i].irqs[j]); | |
1645 | } | |
1646 | } | |
1647 | ||
1648 | register_savevm(&opp->busdev.qdev, "openpic", 0, 2, | |
1649 | openpic_save, openpic_load, opp); | |
1650 | ||
1651 | sysbus_init_mmio(dev, &opp->mem); | |
1652 | qdev_init_gpio_in(&dev->qdev, openpic_set_irq, opp->max_irq); | |
1653 | ||
1654 | return 0; | |
1655 | } | |
1656 | ||
1657 | static Property openpic_properties[] = { | |
1658 | DEFINE_PROP_UINT32("model", OpenPICState, model, | |
1659 | OPENPIC_MODEL_FSL_MPIC_20), | |
1660 | DEFINE_PROP_UINT32("nb_cpus", OpenPICState, nb_cpus, 1), | |
1661 | DEFINE_PROP_END_OF_LIST(), | |
1662 | }; | |
1663 | ||
1664 | static void openpic_class_init(ObjectClass * klass, void *data) | |
1665 | { | |
1666 | DeviceClass *dc = DEVICE_CLASS(klass); | |
1667 | SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); | |
1668 | ||
1669 | k->init = openpic_init; | |
1670 | dc->props = openpic_properties; | |
1671 | dc->reset = openpic_reset; | |
1672 | } | |
1673 | ||
1674 | static const TypeInfo openpic_info = { | |
1675 | .name = "openpic", | |
1676 | .parent = TYPE_SYS_BUS_DEVICE, | |
1677 | .instance_size = sizeof(OpenPICState), | |
1678 | .class_init = openpic_class_init, | |
1679 | }; | |
1680 | ||
1681 | static void openpic_register_types(void) | |
1682 | { | |
1683 | type_register_static(&openpic_info); | |
1684 | } | |
1685 | ||
1686 | type_init(openpic_register_types) |