Revision 008ff9d7
b/hw/ppc405.h | ||
---|---|---|
25 | 25 |
#if !defined(PPC_405_H) |
26 | 26 |
#define PPC_405_H |
27 | 27 |
|
28 |
#include "ppc4xx.h" |
|
29 |
|
|
28 | 30 |
/* Bootinfo as set-up by u-boot */ |
29 | 31 |
typedef struct ppc4xx_bd_info_t ppc4xx_bd_info_t; |
30 | 32 |
struct ppc4xx_bd_info_t { |
... | ... | |
54 | 56 |
}; |
55 | 57 |
|
56 | 58 |
/* PowerPC 405 core */ |
57 |
CPUState *ppc405_init (const unsigned char *cpu_model, |
|
58 |
clk_setup_t *cpu_clk, clk_setup_t *tb_clk, |
|
59 |
uint32_t sysclk); |
|
60 | 59 |
ram_addr_t ppc405_set_bootinfo (CPUState *env, ppc4xx_bd_info_t *bd, |
61 | 60 |
uint32_t flags); |
62 | 61 |
|
63 |
/* */ |
|
64 |
typedef struct ppc4xx_mmio_t ppc4xx_mmio_t; |
|
65 |
int ppc4xx_mmio_register (CPUState *env, ppc4xx_mmio_t *mmio, |
|
66 |
target_phys_addr_t offset, uint32_t len, |
|
67 |
CPUReadMemoryFunc **mem_read, |
|
68 |
CPUWriteMemoryFunc **mem_write, void *opaque); |
|
69 |
ppc4xx_mmio_t *ppc4xx_mmio_init (CPUState *env, target_phys_addr_t base); |
|
70 | 62 |
/* PowerPC 4xx peripheral local bus arbitrer */ |
71 | 63 |
void ppc4xx_plb_init (CPUState *env); |
72 | 64 |
/* PLB to OPB bridge */ |
... | ... | |
74 | 66 |
/* OPB arbitrer */ |
75 | 67 |
void ppc4xx_opba_init (CPUState *env, ppc4xx_mmio_t *mmio, |
76 | 68 |
target_phys_addr_t offset); |
77 |
/* PowerPC 4xx universal interrupt controller */ |
|
78 |
enum { |
|
79 |
PPCUIC_OUTPUT_INT = 0, |
|
80 |
PPCUIC_OUTPUT_CINT = 1, |
|
81 |
PPCUIC_OUTPUT_NB, |
|
82 |
}; |
|
83 |
qemu_irq *ppcuic_init (CPUState *env, qemu_irq *irqs, |
|
84 |
uint32_t dcr_base, int has_ssr, int has_vr); |
|
85 | 69 |
/* SDRAM controller */ |
86 | 70 |
void ppc405_sdram_init (CPUState *env, qemu_irq irq, int nbanks, |
87 | 71 |
target_phys_addr_t *ram_bases, |
b/hw/ppc405_uc.c | ||
---|---|---|
27 | 27 |
extern int loglevel; |
28 | 28 |
extern FILE *logfile; |
29 | 29 |
|
30 |
//#define DEBUG_MMIO |
|
31 | 30 |
#define DEBUG_OPBA |
32 | 31 |
#define DEBUG_SDRAM |
33 | 32 |
#define DEBUG_GPIO |
... | ... | |
36 | 35 |
//#define DEBUG_I2C |
37 | 36 |
#define DEBUG_GPT |
38 | 37 |
#define DEBUG_MAL |
39 |
#define DEBUG_UIC |
|
40 | 38 |
#define DEBUG_CLOCKS |
41 | 39 |
//#define DEBUG_UNASSIGNED |
42 | 40 |
|
43 |
/*****************************************************************************/ |
|
44 |
/* Generic PowerPC 405 processor instanciation */ |
|
45 |
CPUState *ppc405_init (const unsigned char *cpu_model, |
|
46 |
clk_setup_t *cpu_clk, clk_setup_t *tb_clk, |
|
47 |
uint32_t sysclk) |
|
48 |
{ |
|
49 |
CPUState *env; |
|
50 |
ppc_def_t *def; |
|
51 |
|
|
52 |
/* init CPUs */ |
|
53 |
env = cpu_init(); |
|
54 |
ppc_find_by_name(cpu_model, &def); |
|
55 |
if (def == NULL) { |
|
56 |
cpu_abort(env, "Unable to find PowerPC %s CPU definition\n", |
|
57 |
cpu_model); |
|
58 |
} |
|
59 |
cpu_ppc_register(env, def); |
|
60 |
cpu_ppc_reset(env); |
|
61 |
cpu_clk->cb = NULL; /* We don't care about CPU clock frequency changes */ |
|
62 |
cpu_clk->opaque = env; |
|
63 |
/* Set time-base frequency to sysclk */ |
|
64 |
tb_clk->cb = ppc_emb_timers_init(env, sysclk); |
|
65 |
tb_clk->opaque = env; |
|
66 |
ppc_dcr_init(env, NULL, NULL); |
|
67 |
/* Register Qemu callbacks */ |
|
68 |
qemu_register_reset(&cpu_ppc_reset, env); |
|
69 |
register_savevm("cpu", 0, 3, cpu_save, cpu_load, env); |
|
70 |
|
|
71 |
return env; |
|
72 |
} |
|
73 |
|
|
74 | 41 |
ram_addr_t ppc405_set_bootinfo (CPUState *env, ppc4xx_bd_info_t *bd, |
75 | 42 |
uint32_t flags) |
76 | 43 |
{ |
... | ... | |
124 | 91 |
/* Shared peripherals */ |
125 | 92 |
|
126 | 93 |
/*****************************************************************************/ |
127 |
/* Fake device used to map multiple devices in a single memory page */ |
|
128 |
#define MMIO_AREA_BITS 8 |
|
129 |
#define MMIO_AREA_LEN (1 << MMIO_AREA_BITS) |
|
130 |
#define MMIO_AREA_NB (1 << (TARGET_PAGE_BITS - MMIO_AREA_BITS)) |
|
131 |
#define MMIO_IDX(addr) (((addr) >> MMIO_AREA_BITS) & (MMIO_AREA_NB - 1)) |
|
132 |
struct ppc4xx_mmio_t { |
|
133 |
target_phys_addr_t base; |
|
134 |
CPUReadMemoryFunc **mem_read[MMIO_AREA_NB]; |
|
135 |
CPUWriteMemoryFunc **mem_write[MMIO_AREA_NB]; |
|
136 |
void *opaque[MMIO_AREA_NB]; |
|
137 |
}; |
|
138 |
|
|
139 |
static uint32_t unassigned_mmio_readb (void *opaque, target_phys_addr_t addr) |
|
140 |
{ |
|
141 |
#ifdef DEBUG_UNASSIGNED |
|
142 |
ppc4xx_mmio_t *mmio; |
|
143 |
|
|
144 |
mmio = opaque; |
|
145 |
printf("Unassigned mmio read 0x" PADDRX " base " PADDRX "\n", |
|
146 |
addr, mmio->base); |
|
147 |
#endif |
|
148 |
|
|
149 |
return 0; |
|
150 |
} |
|
151 |
|
|
152 |
static void unassigned_mmio_writeb (void *opaque, |
|
153 |
target_phys_addr_t addr, uint32_t val) |
|
154 |
{ |
|
155 |
#ifdef DEBUG_UNASSIGNED |
|
156 |
ppc4xx_mmio_t *mmio; |
|
157 |
|
|
158 |
mmio = opaque; |
|
159 |
printf("Unassigned mmio write 0x" PADDRX " = 0x%x base " PADDRX "\n", |
|
160 |
addr, val, mmio->base); |
|
161 |
#endif |
|
162 |
} |
|
163 |
|
|
164 |
static CPUReadMemoryFunc *unassigned_mmio_read[3] = { |
|
165 |
unassigned_mmio_readb, |
|
166 |
unassigned_mmio_readb, |
|
167 |
unassigned_mmio_readb, |
|
168 |
}; |
|
169 |
|
|
170 |
static CPUWriteMemoryFunc *unassigned_mmio_write[3] = { |
|
171 |
unassigned_mmio_writeb, |
|
172 |
unassigned_mmio_writeb, |
|
173 |
unassigned_mmio_writeb, |
|
174 |
}; |
|
175 |
|
|
176 |
static uint32_t mmio_readlen (ppc4xx_mmio_t *mmio, |
|
177 |
target_phys_addr_t addr, int len) |
|
178 |
{ |
|
179 |
CPUReadMemoryFunc **mem_read; |
|
180 |
uint32_t ret; |
|
181 |
int idx; |
|
182 |
|
|
183 |
idx = MMIO_IDX(addr - mmio->base); |
|
184 |
#if defined(DEBUG_MMIO) |
|
185 |
printf("%s: mmio %p len %d addr " PADDRX " idx %d\n", __func__, |
|
186 |
mmio, len, addr, idx); |
|
187 |
#endif |
|
188 |
mem_read = mmio->mem_read[idx]; |
|
189 |
ret = (*mem_read[len])(mmio->opaque[idx], addr - mmio->base); |
|
190 |
|
|
191 |
return ret; |
|
192 |
} |
|
193 |
|
|
194 |
static void mmio_writelen (ppc4xx_mmio_t *mmio, |
|
195 |
target_phys_addr_t addr, uint32_t value, int len) |
|
196 |
{ |
|
197 |
CPUWriteMemoryFunc **mem_write; |
|
198 |
int idx; |
|
199 |
|
|
200 |
idx = MMIO_IDX(addr - mmio->base); |
|
201 |
#if defined(DEBUG_MMIO) |
|
202 |
printf("%s: mmio %p len %d addr " PADDRX " idx %d value %08x\n", __func__, |
|
203 |
mmio, len, addr, idx, value); |
|
204 |
#endif |
|
205 |
mem_write = mmio->mem_write[idx]; |
|
206 |
(*mem_write[len])(mmio->opaque[idx], addr - mmio->base, value); |
|
207 |
} |
|
208 |
|
|
209 |
static uint32_t mmio_readb (void *opaque, target_phys_addr_t addr) |
|
210 |
{ |
|
211 |
#if defined(DEBUG_MMIO) |
|
212 |
printf("%s: addr " PADDRX "\n", __func__, addr); |
|
213 |
#endif |
|
214 |
|
|
215 |
return mmio_readlen(opaque, addr, 0); |
|
216 |
} |
|
217 |
|
|
218 |
static void mmio_writeb (void *opaque, |
|
219 |
target_phys_addr_t addr, uint32_t value) |
|
220 |
{ |
|
221 |
#if defined(DEBUG_MMIO) |
|
222 |
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value); |
|
223 |
#endif |
|
224 |
mmio_writelen(opaque, addr, value, 0); |
|
225 |
} |
|
226 |
|
|
227 |
static uint32_t mmio_readw (void *opaque, target_phys_addr_t addr) |
|
228 |
{ |
|
229 |
#if defined(DEBUG_MMIO) |
|
230 |
printf("%s: addr " PADDRX "\n", __func__, addr); |
|
231 |
#endif |
|
232 |
|
|
233 |
return mmio_readlen(opaque, addr, 1); |
|
234 |
} |
|
235 |
|
|
236 |
static void mmio_writew (void *opaque, |
|
237 |
target_phys_addr_t addr, uint32_t value) |
|
238 |
{ |
|
239 |
#if defined(DEBUG_MMIO) |
|
240 |
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value); |
|
241 |
#endif |
|
242 |
mmio_writelen(opaque, addr, value, 1); |
|
243 |
} |
|
244 |
|
|
245 |
static uint32_t mmio_readl (void *opaque, target_phys_addr_t addr) |
|
246 |
{ |
|
247 |
#if defined(DEBUG_MMIO) |
|
248 |
printf("%s: addr " PADDRX "\n", __func__, addr); |
|
249 |
#endif |
|
250 |
|
|
251 |
return mmio_readlen(opaque, addr, 2); |
|
252 |
} |
|
253 |
|
|
254 |
static void mmio_writel (void *opaque, |
|
255 |
target_phys_addr_t addr, uint32_t value) |
|
256 |
{ |
|
257 |
#if defined(DEBUG_MMIO) |
|
258 |
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value); |
|
259 |
#endif |
|
260 |
mmio_writelen(opaque, addr, value, 2); |
|
261 |
} |
|
262 |
|
|
263 |
static CPUReadMemoryFunc *mmio_read[] = { |
|
264 |
&mmio_readb, |
|
265 |
&mmio_readw, |
|
266 |
&mmio_readl, |
|
267 |
}; |
|
268 |
|
|
269 |
static CPUWriteMemoryFunc *mmio_write[] = { |
|
270 |
&mmio_writeb, |
|
271 |
&mmio_writew, |
|
272 |
&mmio_writel, |
|
273 |
}; |
|
274 |
|
|
275 |
int ppc4xx_mmio_register (CPUState *env, ppc4xx_mmio_t *mmio, |
|
276 |
target_phys_addr_t offset, uint32_t len, |
|
277 |
CPUReadMemoryFunc **mem_read, |
|
278 |
CPUWriteMemoryFunc **mem_write, void *opaque) |
|
279 |
{ |
|
280 |
uint32_t end; |
|
281 |
int idx, eidx; |
|
282 |
|
|
283 |
if ((offset + len) > TARGET_PAGE_SIZE) |
|
284 |
return -1; |
|
285 |
idx = MMIO_IDX(offset); |
|
286 |
end = offset + len - 1; |
|
287 |
eidx = MMIO_IDX(end); |
|
288 |
#if defined(DEBUG_MMIO) |
|
289 |
printf("%s: offset %08x len %08x %08x %d %d\n", __func__, offset, len, |
|
290 |
end, idx, eidx); |
|
291 |
#endif |
|
292 |
for (; idx <= eidx; idx++) { |
|
293 |
mmio->mem_read[idx] = mem_read; |
|
294 |
mmio->mem_write[idx] = mem_write; |
|
295 |
mmio->opaque[idx] = opaque; |
|
296 |
} |
|
297 |
|
|
298 |
return 0; |
|
299 |
} |
|
300 |
|
|
301 |
ppc4xx_mmio_t *ppc4xx_mmio_init (CPUState *env, target_phys_addr_t base) |
|
302 |
{ |
|
303 |
ppc4xx_mmio_t *mmio; |
|
304 |
int mmio_memory; |
|
305 |
|
|
306 |
mmio = qemu_mallocz(sizeof(ppc4xx_mmio_t)); |
|
307 |
if (mmio != NULL) { |
|
308 |
mmio->base = base; |
|
309 |
mmio_memory = cpu_register_io_memory(0, mmio_read, mmio_write, mmio); |
|
310 |
#if defined(DEBUG_MMIO) |
|
311 |
printf("%s: %p base %08x len %08x %d\n", __func__, |
|
312 |
mmio, base, TARGET_PAGE_SIZE, mmio_memory); |
|
313 |
#endif |
|
314 |
cpu_register_physical_memory(base, TARGET_PAGE_SIZE, mmio_memory); |
|
315 |
ppc4xx_mmio_register(env, mmio, 0, TARGET_PAGE_SIZE, |
|
316 |
unassigned_mmio_read, unassigned_mmio_write, |
|
317 |
mmio); |
|
318 |
} |
|
319 |
|
|
320 |
return mmio; |
|
321 |
} |
|
322 |
|
|
323 |
/*****************************************************************************/ |
|
324 | 94 |
/* Peripheral local bus arbitrer */ |
325 | 95 |
enum { |
326 | 96 |
PLB0_BESR = 0x084, |
... | ... | |
625 | 395 |
} |
626 | 396 |
|
627 | 397 |
/*****************************************************************************/ |
628 |
/* "Universal" Interrupt controller */ |
|
629 |
enum { |
|
630 |
DCR_UICSR = 0x000, |
|
631 |
DCR_UICSRS = 0x001, |
|
632 |
DCR_UICER = 0x002, |
|
633 |
DCR_UICCR = 0x003, |
|
634 |
DCR_UICPR = 0x004, |
|
635 |
DCR_UICTR = 0x005, |
|
636 |
DCR_UICMSR = 0x006, |
|
637 |
DCR_UICVR = 0x007, |
|
638 |
DCR_UICVCR = 0x008, |
|
639 |
DCR_UICMAX = 0x009, |
|
640 |
}; |
|
641 |
|
|
642 |
#define UIC_MAX_IRQ 32 |
|
643 |
typedef struct ppcuic_t ppcuic_t; |
|
644 |
struct ppcuic_t { |
|
645 |
uint32_t dcr_base; |
|
646 |
int use_vectors; |
|
647 |
uint32_t uicsr; /* Status register */ |
|
648 |
uint32_t uicer; /* Enable register */ |
|
649 |
uint32_t uiccr; /* Critical register */ |
|
650 |
uint32_t uicpr; /* Polarity register */ |
|
651 |
uint32_t uictr; /* Triggering register */ |
|
652 |
uint32_t uicvcr; /* Vector configuration register */ |
|
653 |
uint32_t uicvr; |
|
654 |
qemu_irq *irqs; |
|
655 |
}; |
|
656 |
|
|
657 |
static void ppcuic_trigger_irq (ppcuic_t *uic) |
|
658 |
{ |
|
659 |
uint32_t ir, cr; |
|
660 |
int start, end, inc, i; |
|
661 |
|
|
662 |
/* Trigger interrupt if any is pending */ |
|
663 |
ir = uic->uicsr & uic->uicer & (~uic->uiccr); |
|
664 |
cr = uic->uicsr & uic->uicer & uic->uiccr; |
|
665 |
#ifdef DEBUG_UIC |
|
666 |
if (loglevel & CPU_LOG_INT) { |
|
667 |
fprintf(logfile, "%s: uicsr %08x uicer %08x uiccr %08x\n" |
|
668 |
" %08x ir %08x cr %08x\n", __func__, |
|
669 |
uic->uicsr, uic->uicer, uic->uiccr, |
|
670 |
uic->uicsr & uic->uicer, ir, cr); |
|
671 |
} |
|
672 |
#endif |
|
673 |
if (ir != 0x0000000) { |
|
674 |
#ifdef DEBUG_UIC |
|
675 |
if (loglevel & CPU_LOG_INT) { |
|
676 |
fprintf(logfile, "Raise UIC interrupt\n"); |
|
677 |
} |
|
678 |
#endif |
|
679 |
qemu_irq_raise(uic->irqs[PPCUIC_OUTPUT_INT]); |
|
680 |
} else { |
|
681 |
#ifdef DEBUG_UIC |
|
682 |
if (loglevel & CPU_LOG_INT) { |
|
683 |
fprintf(logfile, "Lower UIC interrupt\n"); |
|
684 |
} |
|
685 |
#endif |
|
686 |
qemu_irq_lower(uic->irqs[PPCUIC_OUTPUT_INT]); |
|
687 |
} |
|
688 |
/* Trigger critical interrupt if any is pending and update vector */ |
|
689 |
if (cr != 0x0000000) { |
|
690 |
qemu_irq_raise(uic->irqs[PPCUIC_OUTPUT_CINT]); |
|
691 |
if (uic->use_vectors) { |
|
692 |
/* Compute critical IRQ vector */ |
|
693 |
if (uic->uicvcr & 1) { |
|
694 |
start = 31; |
|
695 |
end = 0; |
|
696 |
inc = -1; |
|
697 |
} else { |
|
698 |
start = 0; |
|
699 |
end = 31; |
|
700 |
inc = 1; |
|
701 |
} |
|
702 |
uic->uicvr = uic->uicvcr & 0xFFFFFFFC; |
|
703 |
for (i = start; i <= end; i += inc) { |
|
704 |
if (cr & (1 << i)) { |
|
705 |
uic->uicvr += (i - start) * 512 * inc; |
|
706 |
break; |
|
707 |
} |
|
708 |
} |
|
709 |
} |
|
710 |
#ifdef DEBUG_UIC |
|
711 |
if (loglevel & CPU_LOG_INT) { |
|
712 |
fprintf(logfile, "Raise UIC critical interrupt - vector %08x\n", |
|
713 |
uic->uicvr); |
|
714 |
} |
|
715 |
#endif |
|
716 |
} else { |
|
717 |
#ifdef DEBUG_UIC |
|
718 |
if (loglevel & CPU_LOG_INT) { |
|
719 |
fprintf(logfile, "Lower UIC critical interrupt\n"); |
|
720 |
} |
|
721 |
#endif |
|
722 |
qemu_irq_lower(uic->irqs[PPCUIC_OUTPUT_CINT]); |
|
723 |
uic->uicvr = 0x00000000; |
|
724 |
} |
|
725 |
} |
|
726 |
|
|
727 |
static void ppcuic_set_irq (void *opaque, int irq_num, int level) |
|
728 |
{ |
|
729 |
ppcuic_t *uic; |
|
730 |
uint32_t mask, sr; |
|
731 |
|
|
732 |
uic = opaque; |
|
733 |
mask = 1 << irq_num; |
|
734 |
#ifdef DEBUG_UIC |
|
735 |
if (loglevel & CPU_LOG_INT) { |
|
736 |
fprintf(logfile, "%s: irq %d level %d uicsr %08x mask %08x => %08x " |
|
737 |
"%08x\n", __func__, irq_num, level, |
|
738 |
uic->uicsr, mask, uic->uicsr & mask, level << irq_num); |
|
739 |
} |
|
740 |
#endif |
|
741 |
if (irq_num < 0 || irq_num > 31) |
|
742 |
return; |
|
743 |
sr = uic->uicsr; |
|
744 |
if (!(uic->uicpr & mask)) { |
|
745 |
/* Negatively asserted IRQ */ |
|
746 |
level = level == 0 ? 1 : 0; |
|
747 |
} |
|
748 |
/* Update status register */ |
|
749 |
if (uic->uictr & mask) { |
|
750 |
/* Edge sensitive interrupt */ |
|
751 |
if (level == 1) |
|
752 |
uic->uicsr |= mask; |
|
753 |
} else { |
|
754 |
/* Level sensitive interrupt */ |
|
755 |
if (level == 1) |
|
756 |
uic->uicsr |= mask; |
|
757 |
else |
|
758 |
uic->uicsr &= ~mask; |
|
759 |
} |
|
760 |
#ifdef DEBUG_UIC |
|
761 |
if (loglevel & CPU_LOG_INT) { |
|
762 |
fprintf(logfile, "%s: irq %d level %d sr %08x => %08x\n", __func__, |
|
763 |
irq_num, level, uic->uicsr, sr); |
|
764 |
} |
|
765 |
#endif |
|
766 |
if (sr != uic->uicsr) |
|
767 |
ppcuic_trigger_irq(uic); |
|
768 |
} |
|
769 |
|
|
770 |
static target_ulong dcr_read_uic (void *opaque, int dcrn) |
|
771 |
{ |
|
772 |
ppcuic_t *uic; |
|
773 |
target_ulong ret; |
|
774 |
|
|
775 |
uic = opaque; |
|
776 |
dcrn -= uic->dcr_base; |
|
777 |
switch (dcrn) { |
|
778 |
case DCR_UICSR: |
|
779 |
case DCR_UICSRS: |
|
780 |
ret = uic->uicsr; |
|
781 |
break; |
|
782 |
case DCR_UICER: |
|
783 |
ret = uic->uicer; |
|
784 |
break; |
|
785 |
case DCR_UICCR: |
|
786 |
ret = uic->uiccr; |
|
787 |
break; |
|
788 |
case DCR_UICPR: |
|
789 |
ret = uic->uicpr; |
|
790 |
break; |
|
791 |
case DCR_UICTR: |
|
792 |
ret = uic->uictr; |
|
793 |
break; |
|
794 |
case DCR_UICMSR: |
|
795 |
ret = uic->uicsr & uic->uicer; |
|
796 |
break; |
|
797 |
case DCR_UICVR: |
|
798 |
if (!uic->use_vectors) |
|
799 |
goto no_read; |
|
800 |
ret = uic->uicvr; |
|
801 |
break; |
|
802 |
case DCR_UICVCR: |
|
803 |
if (!uic->use_vectors) |
|
804 |
goto no_read; |
|
805 |
ret = uic->uicvcr; |
|
806 |
break; |
|
807 |
default: |
|
808 |
no_read: |
|
809 |
ret = 0x00000000; |
|
810 |
break; |
|
811 |
} |
|
812 |
|
|
813 |
return ret; |
|
814 |
} |
|
815 |
|
|
816 |
static void dcr_write_uic (void *opaque, int dcrn, target_ulong val) |
|
817 |
{ |
|
818 |
ppcuic_t *uic; |
|
819 |
|
|
820 |
uic = opaque; |
|
821 |
dcrn -= uic->dcr_base; |
|
822 |
#ifdef DEBUG_UIC |
|
823 |
if (loglevel & CPU_LOG_INT) { |
|
824 |
fprintf(logfile, "%s: dcr %d val " ADDRX "\n", __func__, dcrn, val); |
|
825 |
} |
|
826 |
#endif |
|
827 |
switch (dcrn) { |
|
828 |
case DCR_UICSR: |
|
829 |
uic->uicsr &= ~val; |
|
830 |
ppcuic_trigger_irq(uic); |
|
831 |
break; |
|
832 |
case DCR_UICSRS: |
|
833 |
uic->uicsr |= val; |
|
834 |
ppcuic_trigger_irq(uic); |
|
835 |
break; |
|
836 |
case DCR_UICER: |
|
837 |
uic->uicer = val; |
|
838 |
ppcuic_trigger_irq(uic); |
|
839 |
break; |
|
840 |
case DCR_UICCR: |
|
841 |
uic->uiccr = val; |
|
842 |
ppcuic_trigger_irq(uic); |
|
843 |
break; |
|
844 |
case DCR_UICPR: |
|
845 |
uic->uicpr = val; |
|
846 |
ppcuic_trigger_irq(uic); |
|
847 |
break; |
|
848 |
case DCR_UICTR: |
|
849 |
uic->uictr = val; |
|
850 |
ppcuic_trigger_irq(uic); |
|
851 |
break; |
|
852 |
case DCR_UICMSR: |
|
853 |
break; |
|
854 |
case DCR_UICVR: |
|
855 |
break; |
|
856 |
case DCR_UICVCR: |
|
857 |
uic->uicvcr = val & 0xFFFFFFFD; |
|
858 |
ppcuic_trigger_irq(uic); |
|
859 |
break; |
|
860 |
} |
|
861 |
} |
|
862 |
|
|
863 |
static void ppcuic_reset (void *opaque) |
|
864 |
{ |
|
865 |
ppcuic_t *uic; |
|
866 |
|
|
867 |
uic = opaque; |
|
868 |
uic->uiccr = 0x00000000; |
|
869 |
uic->uicer = 0x00000000; |
|
870 |
uic->uicpr = 0x00000000; |
|
871 |
uic->uicsr = 0x00000000; |
|
872 |
uic->uictr = 0x00000000; |
|
873 |
if (uic->use_vectors) { |
|
874 |
uic->uicvcr = 0x00000000; |
|
875 |
uic->uicvr = 0x0000000; |
|
876 |
} |
|
877 |
} |
|
878 |
|
|
879 |
qemu_irq *ppcuic_init (CPUState *env, qemu_irq *irqs, |
|
880 |
uint32_t dcr_base, int has_ssr, int has_vr) |
|
881 |
{ |
|
882 |
ppcuic_t *uic; |
|
883 |
int i; |
|
884 |
|
|
885 |
uic = qemu_mallocz(sizeof(ppcuic_t)); |
|
886 |
if (uic != NULL) { |
|
887 |
uic->dcr_base = dcr_base; |
|
888 |
uic->irqs = irqs; |
|
889 |
if (has_vr) |
|
890 |
uic->use_vectors = 1; |
|
891 |
for (i = 0; i < DCR_UICMAX; i++) { |
|
892 |
ppc_dcr_register(env, dcr_base + i, uic, |
|
893 |
&dcr_read_uic, &dcr_write_uic); |
|
894 |
} |
|
895 |
qemu_register_reset(ppcuic_reset, uic); |
|
896 |
ppcuic_reset(uic); |
|
897 |
} |
|
898 |
|
|
899 |
return qemu_allocate_irqs(&ppcuic_set_irq, uic, UIC_MAX_IRQ); |
|
900 |
} |
|
901 |
|
|
902 |
/*****************************************************************************/ |
|
903 | 398 |
/* Code decompression controller */ |
904 | 399 |
/* XXX: TODO */ |
905 | 400 |
|
... | ... | |
3040 | 2535 |
int i; |
3041 | 2536 |
|
3042 | 2537 |
memset(clk_setup, 0, sizeof(clk_setup)); |
3043 |
env = ppc405_init("405cr", &clk_setup[PPC405CR_CPU_CLK],
|
|
2538 |
env = ppc4xx_init("405cr", &clk_setup[PPC405CR_CPU_CLK],
|
|
3044 | 2539 |
&clk_setup[PPC405CR_TMR_CLK], sysclk); |
3045 | 2540 |
/* Memory mapped devices registers */ |
3046 | 2541 |
mmio = ppc4xx_mmio_init(env, 0xEF600000); |
... | ... | |
3390 | 2885 |
|
3391 | 2886 |
memset(clk_setup, 0, sizeof(clk_setup)); |
3392 | 2887 |
/* init CPUs */ |
3393 |
env = ppc405_init("405ep", &clk_setup[PPC405EP_CPU_CLK],
|
|
2888 |
env = ppc4xx_init("405ep", &clk_setup[PPC405EP_CPU_CLK],
|
|
3394 | 2889 |
&tlb_clk_setup, sysclk); |
3395 | 2890 |
clk_setup[PPC405EP_CPU_CLK].cb = tlb_clk_setup.cb; |
3396 | 2891 |
clk_setup[PPC405EP_CPU_CLK].opaque = tlb_clk_setup.opaque; |
b/hw/ppc4xx.h | ||
---|---|---|
1 |
/* |
|
2 |
* QEMU PowerPC 4xx emulation shared definitions |
|
3 |
* |
|
4 |
* Copyright (c) 2007 Jocelyn Mayer |
|
5 |
* |
|
6 |
* Permission is hereby granted, free of charge, to any person obtaining a copy |
|
7 |
* of this software and associated documentation files (the "Software"), to deal |
|
8 |
* in the Software without restriction, including without limitation the rights |
|
9 |
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
|
10 |
* copies of the Software, and to permit persons to whom the Software is |
|
11 |
* furnished to do so, subject to the following conditions: |
|
12 |
* |
|
13 |
* The above copyright notice and this permission notice shall be included in |
|
14 |
* all copies or substantial portions of the Software. |
|
15 |
* |
|
16 |
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
|
17 |
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
|
18 |
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
|
19 |
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
|
20 |
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
|
21 |
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
|
22 |
* THE SOFTWARE. |
|
23 |
*/ |
|
24 |
|
|
25 |
#if !defined(PPC_4XX_H) |
|
26 |
#define PPC_4XX_H |
|
27 |
|
|
28 |
/* PowerPC 4xx core initialization */ |
|
29 |
CPUState *ppc4xx_init (const unsigned char *cpu_model, |
|
30 |
clk_setup_t *cpu_clk, clk_setup_t *tb_clk, |
|
31 |
uint32_t sysclk); |
|
32 |
|
|
33 |
typedef struct ppc4xx_mmio_t ppc4xx_mmio_t; |
|
34 |
int ppc4xx_mmio_register (CPUState *env, ppc4xx_mmio_t *mmio, |
|
35 |
target_phys_addr_t offset, uint32_t len, |
|
36 |
CPUReadMemoryFunc **mem_read, |
|
37 |
CPUWriteMemoryFunc **mem_write, void *opaque); |
|
38 |
ppc4xx_mmio_t *ppc4xx_mmio_init (CPUState *env, target_phys_addr_t base); |
|
39 |
|
|
40 |
/* PowerPC 4xx universal interrupt controller */ |
|
41 |
enum { |
|
42 |
PPCUIC_OUTPUT_INT = 0, |
|
43 |
PPCUIC_OUTPUT_CINT = 1, |
|
44 |
PPCUIC_OUTPUT_NB, |
|
45 |
}; |
|
46 |
qemu_irq *ppcuic_init (CPUState *env, qemu_irq *irqs, |
|
47 |
uint32_t dcr_base, int has_ssr, int has_vr); |
|
48 |
|
|
49 |
#endif /* !defined(PPC_4XX_H) */ |
b/hw/ppc4xx_devs.c | ||
---|---|---|
1 |
/* |
|
2 |
* QEMU PowerPC 4xx embedded processors shared devices emulation |
|
3 |
* |
|
4 |
* Copyright (c) 2007 Jocelyn Mayer |
|
5 |
* |
|
6 |
* Permission is hereby granted, free of charge, to any person obtaining a copy |
|
7 |
* of this software and associated documentation files (the "Software"), to deal |
|
8 |
* in the Software without restriction, including without limitation the rights |
|
9 |
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
|
10 |
* copies of the Software, and to permit persons to whom the Software is |
|
11 |
* furnished to do so, subject to the following conditions: |
|
12 |
* |
|
13 |
* The above copyright notice and this permission notice shall be included in |
|
14 |
* all copies or substantial portions of the Software. |
|
15 |
* |
|
16 |
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
|
17 |
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
|
18 |
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
|
19 |
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
|
20 |
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
|
21 |
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
|
22 |
* THE SOFTWARE. |
|
23 |
*/ |
|
24 |
#include "vl.h" |
|
25 |
#include "ppc4xx.h" |
|
26 |
|
|
27 |
extern int loglevel; |
|
28 |
extern FILE *logfile; |
|
29 |
|
|
30 |
//#define DEBUG_MMIO |
|
31 |
#define DEBUG_UIC |
|
32 |
|
|
33 |
/*****************************************************************************/ |
|
34 |
/* Generic PowerPC 4xx processor instanciation */ |
|
35 |
CPUState *ppc4xx_init (const unsigned char *cpu_model, |
|
36 |
clk_setup_t *cpu_clk, clk_setup_t *tb_clk, |
|
37 |
uint32_t sysclk) |
|
38 |
{ |
|
39 |
CPUState *env; |
|
40 |
ppc_def_t *def; |
|
41 |
|
|
42 |
/* init CPUs */ |
|
43 |
env = cpu_init(); |
|
44 |
ppc_find_by_name(cpu_model, &def); |
|
45 |
if (def == NULL) { |
|
46 |
cpu_abort(env, "Unable to find PowerPC %s CPU definition\n", |
|
47 |
cpu_model); |
|
48 |
} |
|
49 |
cpu_ppc_register(env, def); |
|
50 |
cpu_ppc_reset(env); |
|
51 |
cpu_clk->cb = NULL; /* We don't care about CPU clock frequency changes */ |
|
52 |
cpu_clk->opaque = env; |
|
53 |
/* Set time-base frequency to sysclk */ |
|
54 |
tb_clk->cb = ppc_emb_timers_init(env, sysclk); |
|
55 |
tb_clk->opaque = env; |
|
56 |
ppc_dcr_init(env, NULL, NULL); |
|
57 |
/* Register qemu callbacks */ |
|
58 |
qemu_register_reset(&cpu_ppc_reset, env); |
|
59 |
register_savevm("cpu", 0, 3, cpu_save, cpu_load, env); |
|
60 |
|
|
61 |
return env; |
|
62 |
} |
|
63 |
|
|
64 |
/*****************************************************************************/ |
|
65 |
/* Fake device used to map multiple devices in a single memory page */ |
|
66 |
#define MMIO_AREA_BITS 8 |
|
67 |
#define MMIO_AREA_LEN (1 << MMIO_AREA_BITS) |
|
68 |
#define MMIO_AREA_NB (1 << (TARGET_PAGE_BITS - MMIO_AREA_BITS)) |
|
69 |
#define MMIO_IDX(addr) (((addr) >> MMIO_AREA_BITS) & (MMIO_AREA_NB - 1)) |
|
70 |
struct ppc4xx_mmio_t { |
|
71 |
target_phys_addr_t base; |
|
72 |
CPUReadMemoryFunc **mem_read[MMIO_AREA_NB]; |
|
73 |
CPUWriteMemoryFunc **mem_write[MMIO_AREA_NB]; |
|
74 |
void *opaque[MMIO_AREA_NB]; |
|
75 |
}; |
|
76 |
|
|
77 |
static uint32_t unassigned_mmio_readb (void *opaque, target_phys_addr_t addr) |
|
78 |
{ |
|
79 |
#ifdef DEBUG_UNASSIGNED |
|
80 |
ppc4xx_mmio_t *mmio; |
|
81 |
|
|
82 |
mmio = opaque; |
|
83 |
printf("Unassigned mmio read 0x" PADDRX " base " PADDRX "\n", |
|
84 |
addr, mmio->base); |
|
85 |
#endif |
|
86 |
|
|
87 |
return 0; |
|
88 |
} |
|
89 |
|
|
90 |
static void unassigned_mmio_writeb (void *opaque, |
|
91 |
target_phys_addr_t addr, uint32_t val) |
|
92 |
{ |
|
93 |
#ifdef DEBUG_UNASSIGNED |
|
94 |
ppc4xx_mmio_t *mmio; |
|
95 |
|
|
96 |
mmio = opaque; |
|
97 |
printf("Unassigned mmio write 0x" PADDRX " = 0x%x base " PADDRX "\n", |
|
98 |
addr, val, mmio->base); |
|
99 |
#endif |
|
100 |
} |
|
101 |
|
|
102 |
static CPUReadMemoryFunc *unassigned_mmio_read[3] = { |
|
103 |
unassigned_mmio_readb, |
|
104 |
unassigned_mmio_readb, |
|
105 |
unassigned_mmio_readb, |
|
106 |
}; |
|
107 |
|
|
108 |
static CPUWriteMemoryFunc *unassigned_mmio_write[3] = { |
|
109 |
unassigned_mmio_writeb, |
|
110 |
unassigned_mmio_writeb, |
|
111 |
unassigned_mmio_writeb, |
|
112 |
}; |
|
113 |
|
|
114 |
static uint32_t mmio_readlen (ppc4xx_mmio_t *mmio, |
|
115 |
target_phys_addr_t addr, int len) |
|
116 |
{ |
|
117 |
CPUReadMemoryFunc **mem_read; |
|
118 |
uint32_t ret; |
|
119 |
int idx; |
|
120 |
|
|
121 |
idx = MMIO_IDX(addr - mmio->base); |
|
122 |
#if defined(DEBUG_MMIO) |
|
123 |
printf("%s: mmio %p len %d addr " PADDRX " idx %d\n", __func__, |
|
124 |
mmio, len, addr, idx); |
|
125 |
#endif |
|
126 |
mem_read = mmio->mem_read[idx]; |
|
127 |
ret = (*mem_read[len])(mmio->opaque[idx], addr - mmio->base); |
|
128 |
|
|
129 |
return ret; |
|
130 |
} |
|
131 |
|
|
132 |
static void mmio_writelen (ppc4xx_mmio_t *mmio, |
|
133 |
target_phys_addr_t addr, uint32_t value, int len) |
|
134 |
{ |
|
135 |
CPUWriteMemoryFunc **mem_write; |
|
136 |
int idx; |
|
137 |
|
|
138 |
idx = MMIO_IDX(addr - mmio->base); |
|
139 |
#if defined(DEBUG_MMIO) |
|
140 |
printf("%s: mmio %p len %d addr " PADDRX " idx %d value %08x\n", __func__, |
|
141 |
mmio, len, addr, idx, value); |
|
142 |
#endif |
|
143 |
mem_write = mmio->mem_write[idx]; |
|
144 |
(*mem_write[len])(mmio->opaque[idx], addr - mmio->base, value); |
|
145 |
} |
|
146 |
|
|
147 |
static uint32_t mmio_readb (void *opaque, target_phys_addr_t addr) |
|
148 |
{ |
|
149 |
#if defined(DEBUG_MMIO) |
|
150 |
printf("%s: addr " PADDRX "\n", __func__, addr); |
|
151 |
#endif |
|
152 |
|
|
153 |
return mmio_readlen(opaque, addr, 0); |
|
154 |
} |
|
155 |
|
|
156 |
static void mmio_writeb (void *opaque, |
|
157 |
target_phys_addr_t addr, uint32_t value) |
|
158 |
{ |
|
159 |
#if defined(DEBUG_MMIO) |
|
160 |
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value); |
|
161 |
#endif |
|
162 |
mmio_writelen(opaque, addr, value, 0); |
|
163 |
} |
|
164 |
|
|
165 |
static uint32_t mmio_readw (void *opaque, target_phys_addr_t addr) |
|
166 |
{ |
|
167 |
#if defined(DEBUG_MMIO) |
|
168 |
printf("%s: addr " PADDRX "\n", __func__, addr); |
|
169 |
#endif |
|
170 |
|
|
171 |
return mmio_readlen(opaque, addr, 1); |
|
172 |
} |
|
173 |
|
|
174 |
static void mmio_writew (void *opaque, |
|
175 |
target_phys_addr_t addr, uint32_t value) |
|
176 |
{ |
|
177 |
#if defined(DEBUG_MMIO) |
|
178 |
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value); |
|
179 |
#endif |
|
180 |
mmio_writelen(opaque, addr, value, 1); |
|
181 |
} |
|
182 |
|
|
183 |
static uint32_t mmio_readl (void *opaque, target_phys_addr_t addr) |
|
184 |
{ |
|
185 |
#if defined(DEBUG_MMIO) |
|
186 |
printf("%s: addr " PADDRX "\n", __func__, addr); |
|
187 |
#endif |
|
188 |
|
|
189 |
return mmio_readlen(opaque, addr, 2); |
|
190 |
} |
|
191 |
|
|
192 |
static void mmio_writel (void *opaque, |
|
193 |
target_phys_addr_t addr, uint32_t value) |
|
194 |
{ |
|
195 |
#if defined(DEBUG_MMIO) |
|
196 |
printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value); |
|
197 |
#endif |
|
198 |
mmio_writelen(opaque, addr, value, 2); |
|
199 |
} |
|
200 |
|
|
201 |
static CPUReadMemoryFunc *mmio_read[] = { |
|
202 |
&mmio_readb, |
|
203 |
&mmio_readw, |
|
204 |
&mmio_readl, |
|
205 |
}; |
|
206 |
|
|
207 |
static CPUWriteMemoryFunc *mmio_write[] = { |
|
208 |
&mmio_writeb, |
|
209 |
&mmio_writew, |
|
210 |
&mmio_writel, |
|
211 |
}; |
|
212 |
|
|
213 |
int ppc4xx_mmio_register (CPUState *env, ppc4xx_mmio_t *mmio, |
|
214 |
target_phys_addr_t offset, uint32_t len, |
|
215 |
CPUReadMemoryFunc **mem_read, |
|
216 |
CPUWriteMemoryFunc **mem_write, void *opaque) |
|
217 |
{ |
|
218 |
uint32_t end; |
|
219 |
int idx, eidx; |
|
220 |
|
|
221 |
if ((offset + len) > TARGET_PAGE_SIZE) |
|
222 |
return -1; |
|
223 |
idx = MMIO_IDX(offset); |
|
224 |
end = offset + len - 1; |
|
225 |
eidx = MMIO_IDX(end); |
|
226 |
#if defined(DEBUG_MMIO) |
|
227 |
printf("%s: offset %08x len %08x %08x %d %d\n", __func__, offset, len, |
|
228 |
end, idx, eidx); |
|
229 |
#endif |
|
230 |
for (; idx <= eidx; idx++) { |
|
231 |
mmio->mem_read[idx] = mem_read; |
|
232 |
mmio->mem_write[idx] = mem_write; |
|
233 |
mmio->opaque[idx] = opaque; |
|
234 |
} |
|
235 |
|
|
236 |
return 0; |
|
237 |
} |
|
238 |
|
|
239 |
ppc4xx_mmio_t *ppc4xx_mmio_init (CPUState *env, target_phys_addr_t base) |
|
240 |
{ |
|
241 |
ppc4xx_mmio_t *mmio; |
|
242 |
int mmio_memory; |
|
243 |
|
|
244 |
mmio = qemu_mallocz(sizeof(ppc4xx_mmio_t)); |
|
245 |
if (mmio != NULL) { |
|
246 |
mmio->base = base; |
|
247 |
mmio_memory = cpu_register_io_memory(0, mmio_read, mmio_write, mmio); |
|
248 |
#if defined(DEBUG_MMIO) |
|
249 |
printf("%s: %p base %08x len %08x %d\n", __func__, |
|
250 |
mmio, base, TARGET_PAGE_SIZE, mmio_memory); |
|
251 |
#endif |
|
252 |
cpu_register_physical_memory(base, TARGET_PAGE_SIZE, mmio_memory); |
|
253 |
ppc4xx_mmio_register(env, mmio, 0, TARGET_PAGE_SIZE, |
|
254 |
unassigned_mmio_read, unassigned_mmio_write, |
|
255 |
mmio); |
|
256 |
} |
|
257 |
|
|
258 |
return mmio; |
|
259 |
} |
|
260 |
|
|
261 |
/*****************************************************************************/ |
|
262 |
/* "Universal" Interrupt controller */ |
|
263 |
enum { |
|
264 |
DCR_UICSR = 0x000, |
|
265 |
DCR_UICSRS = 0x001, |
|
266 |
DCR_UICER = 0x002, |
|
267 |
DCR_UICCR = 0x003, |
|
268 |
DCR_UICPR = 0x004, |
|
269 |
DCR_UICTR = 0x005, |
|
270 |
DCR_UICMSR = 0x006, |
|
271 |
DCR_UICVR = 0x007, |
|
272 |
DCR_UICVCR = 0x008, |
|
273 |
DCR_UICMAX = 0x009, |
|
274 |
}; |
|
275 |
|
|
276 |
#define UIC_MAX_IRQ 32 |
|
277 |
typedef struct ppcuic_t ppcuic_t; |
|
278 |
struct ppcuic_t { |
|
279 |
uint32_t dcr_base; |
|
280 |
int use_vectors; |
|
281 |
uint32_t uicsr; /* Status register */ |
|
282 |
uint32_t uicer; /* Enable register */ |
|
283 |
uint32_t uiccr; /* Critical register */ |
|
284 |
uint32_t uicpr; /* Polarity register */ |
|
285 |
uint32_t uictr; /* Triggering register */ |
|
286 |
uint32_t uicvcr; /* Vector configuration register */ |
|
287 |
uint32_t uicvr; |
|
288 |
qemu_irq *irqs; |
|
289 |
}; |
|
290 |
|
|
291 |
static void ppcuic_trigger_irq (ppcuic_t *uic) |
|
292 |
{ |
|
293 |
uint32_t ir, cr; |
|
294 |
int start, end, inc, i; |
|
295 |
|
|
296 |
/* Trigger interrupt if any is pending */ |
|
297 |
ir = uic->uicsr & uic->uicer & (~uic->uiccr); |
|
298 |
cr = uic->uicsr & uic->uicer & uic->uiccr; |
|
299 |
#ifdef DEBUG_UIC |
|
300 |
if (loglevel & CPU_LOG_INT) { |
|
301 |
fprintf(logfile, "%s: uicsr %08x uicer %08x uiccr %08x\n" |
|
302 |
" %08x ir %08x cr %08x\n", __func__, |
|
303 |
uic->uicsr, uic->uicer, uic->uiccr, |
|
304 |
uic->uicsr & uic->uicer, ir, cr); |
|
305 |
} |
|
306 |
#endif |
|
307 |
if (ir != 0x0000000) { |
|
308 |
#ifdef DEBUG_UIC |
|
309 |
if (loglevel & CPU_LOG_INT) { |
|
310 |
fprintf(logfile, "Raise UIC interrupt\n"); |
|
311 |
} |
|
312 |
#endif |
|
313 |
qemu_irq_raise(uic->irqs[PPCUIC_OUTPUT_INT]); |
|
314 |
} else { |
|
315 |
#ifdef DEBUG_UIC |
|
316 |
if (loglevel & CPU_LOG_INT) { |
|
317 |
fprintf(logfile, "Lower UIC interrupt\n"); |
|
318 |
} |
|
319 |
#endif |
|
320 |
qemu_irq_lower(uic->irqs[PPCUIC_OUTPUT_INT]); |
|
321 |
} |
|
322 |
/* Trigger critical interrupt if any is pending and update vector */ |
|
323 |
if (cr != 0x0000000) { |
|
324 |
qemu_irq_raise(uic->irqs[PPCUIC_OUTPUT_CINT]); |
|
325 |
if (uic->use_vectors) { |
|
326 |
/* Compute critical IRQ vector */ |
|
327 |
if (uic->uicvcr & 1) { |
|
328 |
start = 31; |
|
329 |
end = 0; |
|
330 |
inc = -1; |
|
331 |
} else { |
|
332 |
start = 0; |
|
333 |
end = 31; |
|
334 |
inc = 1; |
|
335 |
} |
|
336 |
uic->uicvr = uic->uicvcr & 0xFFFFFFFC; |
|
337 |
for (i = start; i <= end; i += inc) { |
|
338 |
if (cr & (1 << i)) { |
|
339 |
uic->uicvr += (i - start) * 512 * inc; |
|
340 |
break; |
|
341 |
} |
|
342 |
} |
|
343 |
} |
|
344 |
#ifdef DEBUG_UIC |
|
345 |
if (loglevel & CPU_LOG_INT) { |
|
346 |
fprintf(logfile, "Raise UIC critical interrupt - vector %08x\n", |
|
347 |
uic->uicvr); |
|
348 |
} |
|
349 |
#endif |
|
350 |
} else { |
|
351 |
#ifdef DEBUG_UIC |
|
352 |
if (loglevel & CPU_LOG_INT) { |
|
353 |
fprintf(logfile, "Lower UIC critical interrupt\n"); |
|
354 |
} |
|
355 |
#endif |
|
356 |
qemu_irq_lower(uic->irqs[PPCUIC_OUTPUT_CINT]); |
|
357 |
uic->uicvr = 0x00000000; |
|
358 |
} |
|
359 |
} |
|
360 |
|
|
361 |
static void ppcuic_set_irq (void *opaque, int irq_num, int level) |
|
362 |
{ |
|
363 |
ppcuic_t *uic; |
|
364 |
uint32_t mask, sr; |
|
365 |
|
|
366 |
uic = opaque; |
|
367 |
mask = 1 << irq_num; |
|
368 |
#ifdef DEBUG_UIC |
|
369 |
if (loglevel & CPU_LOG_INT) { |
|
370 |
fprintf(logfile, "%s: irq %d level %d uicsr %08x mask %08x => %08x " |
|
371 |
"%08x\n", __func__, irq_num, level, |
|
372 |
uic->uicsr, mask, uic->uicsr & mask, level << irq_num); |
|
373 |
} |
|
374 |
#endif |
|
375 |
if (irq_num < 0 || irq_num > 31) |
|
376 |
return; |
|
377 |
sr = uic->uicsr; |
|
378 |
if (!(uic->uicpr & mask)) { |
|
379 |
/* Negatively asserted IRQ */ |
|
380 |
level = level == 0 ? 1 : 0; |
|
381 |
} |
|
382 |
/* Update status register */ |
|
383 |
if (uic->uictr & mask) { |
|
384 |
/* Edge sensitive interrupt */ |
|
385 |
if (level == 1) |
|
386 |
uic->uicsr |= mask; |
|
387 |
} else { |
|
388 |
/* Level sensitive interrupt */ |
|
389 |
if (level == 1) |
|
390 |
uic->uicsr |= mask; |
|
391 |
else |
|
392 |
uic->uicsr &= ~mask; |
|
393 |
} |
|
394 |
#ifdef DEBUG_UIC |
|
395 |
if (loglevel & CPU_LOG_INT) { |
|
396 |
fprintf(logfile, "%s: irq %d level %d sr %08x => %08x\n", __func__, |
|
397 |
irq_num, level, uic->uicsr, sr); |
|
398 |
} |
|
399 |
#endif |
|
400 |
if (sr != uic->uicsr) |
|
401 |
ppcuic_trigger_irq(uic); |
|
402 |
} |
|
403 |
|
|
404 |
static target_ulong dcr_read_uic (void *opaque, int dcrn) |
|
405 |
{ |
|
406 |
ppcuic_t *uic; |
|
407 |
target_ulong ret; |
|
408 |
|
|
409 |
uic = opaque; |
|
410 |
dcrn -= uic->dcr_base; |
|
411 |
switch (dcrn) { |
|
412 |
case DCR_UICSR: |
|
413 |
case DCR_UICSRS: |
|
414 |
ret = uic->uicsr; |
|
415 |
break; |
|
416 |
case DCR_UICER: |
|
417 |
ret = uic->uicer; |
|
418 |
break; |
|
419 |
case DCR_UICCR: |
|
420 |
ret = uic->uiccr; |
|
421 |
break; |
|
422 |
case DCR_UICPR: |
|
423 |
ret = uic->uicpr; |
|
424 |
break; |
|
425 |
case DCR_UICTR: |
|
426 |
ret = uic->uictr; |
|
427 |
break; |
|
428 |
case DCR_UICMSR: |
|
429 |
ret = uic->uicsr & uic->uicer; |
|
430 |
break; |
|
431 |
case DCR_UICVR: |
|
432 |
if (!uic->use_vectors) |
|
433 |
goto no_read; |
|
434 |
ret = uic->uicvr; |
|
435 |
break; |
|
436 |
case DCR_UICVCR: |
|
437 |
if (!uic->use_vectors) |
|
438 |
goto no_read; |
|
439 |
ret = uic->uicvcr; |
|
440 |
break; |
|
441 |
default: |
|
442 |
no_read: |
|
443 |
ret = 0x00000000; |
|
444 |
break; |
|
445 |
} |
|
446 |
|
|
447 |
return ret; |
|
448 |
} |
|
449 |
|
|
450 |
static void dcr_write_uic (void *opaque, int dcrn, target_ulong val) |
|
451 |
{ |
|
452 |
ppcuic_t *uic; |
|
453 |
|
|
454 |
uic = opaque; |
|
455 |
dcrn -= uic->dcr_base; |
|
456 |
#ifdef DEBUG_UIC |
|
457 |
if (loglevel & CPU_LOG_INT) { |
|
458 |
fprintf(logfile, "%s: dcr %d val " ADDRX "\n", __func__, dcrn, val); |
|
459 |
} |
|
460 |
#endif |
|
461 |
switch (dcrn) { |
|
462 |
case DCR_UICSR: |
|
463 |
uic->uicsr &= ~val; |
|
464 |
ppcuic_trigger_irq(uic); |
|
465 |
break; |
|
466 |
case DCR_UICSRS: |
|
467 |
uic->uicsr |= val; |
|
468 |
ppcuic_trigger_irq(uic); |
|
469 |
break; |
|
470 |
case DCR_UICER: |
|
471 |
uic->uicer = val; |
|
472 |
ppcuic_trigger_irq(uic); |
|
473 |
break; |
|
474 |
case DCR_UICCR: |
|
475 |
uic->uiccr = val; |
|
476 |
ppcuic_trigger_irq(uic); |
|
477 |
break; |
|
478 |
case DCR_UICPR: |
|
479 |
uic->uicpr = val; |
|
480 |
ppcuic_trigger_irq(uic); |
|
481 |
break; |
|
482 |
case DCR_UICTR: |
|
483 |
uic->uictr = val; |
|
484 |
ppcuic_trigger_irq(uic); |
|
485 |
break; |
|
486 |
case DCR_UICMSR: |
|
487 |
break; |
|
488 |
case DCR_UICVR: |
|
489 |
break; |
|
490 |
case DCR_UICVCR: |
|
491 |
uic->uicvcr = val & 0xFFFFFFFD; |
|
492 |
ppcuic_trigger_irq(uic); |
|
493 |
break; |
|
494 |
} |
|
495 |
} |
|
496 |
|
|
497 |
static void ppcuic_reset (void *opaque) |
|
498 |
{ |
|
499 |
ppcuic_t *uic; |
|
500 |
|
|
501 |
uic = opaque; |
|
502 |
uic->uiccr = 0x00000000; |
|
503 |
uic->uicer = 0x00000000; |
|
504 |
uic->uicpr = 0x00000000; |
|
505 |
uic->uicsr = 0x00000000; |
|
506 |
uic->uictr = 0x00000000; |
|
507 |
if (uic->use_vectors) { |
|
508 |
uic->uicvcr = 0x00000000; |
|
509 |
uic->uicvr = 0x0000000; |
|
510 |
} |
|
511 |
} |
|
512 |
|
|
513 |
qemu_irq *ppcuic_init (CPUState *env, qemu_irq *irqs, |
|
514 |
uint32_t dcr_base, int has_ssr, int has_vr) |
|
515 |
{ |
|
516 |
ppcuic_t *uic; |
|
517 |
int i; |
|
518 |
|
|
519 |
uic = qemu_mallocz(sizeof(ppcuic_t)); |
|
520 |
if (uic != NULL) { |
|
521 |
uic->dcr_base = dcr_base; |
|
522 |
uic->irqs = irqs; |
|
523 |
if (has_vr) |
|
524 |
uic->use_vectors = 1; |
|
525 |
for (i = 0; i < DCR_UICMAX; i++) { |
|
526 |
ppc_dcr_register(env, dcr_base + i, uic, |
|
527 |
&dcr_read_uic, &dcr_write_uic); |
|
528 |
} |
|
529 |
qemu_register_reset(ppcuic_reset, uic); |
|
530 |
ppcuic_reset(uic); |
|
531 |
} |
|
532 |
|
|
533 |
return qemu_allocate_irqs(&ppcuic_set_irq, uic, UIC_MAX_IRQ); |
|
534 |
} |
Also available in: Unified diff