/*
* OpenPIC emulation
- *
+ *
* Copyright (c) 2004 Jocelyn Mayer
- *
+ *
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
/*
*
* Based on OpenPic implementations:
- * - Intel GW80314 I/O compagnion chip developper's manual
+ * - Intel GW80314 I/O companion chip developer's manual
* - Motorola MPC8245 & MPC8540 user manuals.
* - Motorola MCP750 (aka Raven) programmer manual.
* - Motorola Harrier programmer manuel
*
* Serial interrupts, as implemented in Raven chipset are not supported yet.
- *
+ *
*/
-#include "vl.h"
+#include "hw.h"
+#include "ppc_mac.h"
+#include "pci.h"
+#include "openpic.h"
//#define DEBUG_OPENPIC
#ifdef DEBUG_OPENPIC
-#define DPRINTF(fmt, args...) do { printf(fmt , ##args); } while (0)
+#define DPRINTF(fmt, ...) do { printf(fmt , ## __VA_ARGS__); } while (0)
#else
-#define DPRINTF(fmt, args...) do { } while (0)
+#define DPRINTF(fmt, ...) do { } while (0)
#endif
-#define ERROR(fmr, args...) do { printf("ERROR: " fmr , ##args); } while (0)
#define USE_MPCxxx /* Intel model is broken, for now */
#define VID (0x00000000)
-#define OPENPIC_LITTLE_ENDIAN 1
-#define OPENPIC_BIG_ENDIAN 0
-
#elif defined(USE_MPCxxx)
#define MAX_CPU 2
-#define MAX_IRQ 64
-#define EXT_IRQ 48
+#define MAX_IRQ 128
#define MAX_DBL 0
#define MAX_MBX 0
#define MAX_TMR 4
IRQ_IDE,
};
-#define OPENPIC_LITTLE_ENDIAN 1
-#define OPENPIC_BIG_ENDIAN 0
+/* OpenPIC */
+#define OPENPIC_MAX_CPU 2
+#define OPENPIC_MAX_IRQ 64
+#define OPENPIC_EXT_IRQ 48
+#define OPENPIC_MAX_TMR MAX_TMR
+#define OPENPIC_MAX_IPI MAX_IPI
+/* Interrupt definitions */
+#define OPENPIC_IRQ_FE (OPENPIC_EXT_IRQ) /* Internal functional IRQ */
+#define OPENPIC_IRQ_ERR (OPENPIC_EXT_IRQ + 1) /* Error IRQ */
+#define OPENPIC_IRQ_TIM0 (OPENPIC_EXT_IRQ + 2) /* First timer IRQ */
+#if OPENPIC_MAX_IPI > 0
+#define OPENPIC_IRQ_IPI0 (OPENPIC_IRQ_TIM0 + OPENPIC_MAX_TMR) /* First IPI IRQ */
+#define OPENPIC_IRQ_DBL0 (OPENPIC_IRQ_IPI0 + (OPENPIC_MAX_CPU * OPENPIC_MAX_IPI)) /* First doorbell IRQ */
#else
-#error "Please select which OpenPic implementation is to be emulated"
+#define OPENPIC_IRQ_DBL0 (OPENPIC_IRQ_TIM0 + OPENPIC_MAX_TMR) /* First doorbell IRQ */
+#define OPENPIC_IRQ_MBX0 (OPENPIC_IRQ_DBL0 + OPENPIC_MAX_DBL) /* First mailbox IRQ */
#endif
-#if (OPENPIC_BIG_ENDIAN && !TARGET_WORDS_BIGENDIAN) || \
- (OPENPIC_LITTLE_ENDIAN && TARGET_WORDS_BIGENDIAN)
-#define OPENPIC_SWAP
-#endif
+/* MPIC */
+#define MPIC_MAX_CPU 1
+#define MPIC_MAX_EXT 12
+#define MPIC_MAX_INT 64
+#define MPIC_MAX_MSG 4
+#define MPIC_MAX_MSI 8
+#define MPIC_MAX_TMR MAX_TMR
+#define MPIC_MAX_IPI MAX_IPI
+#define MPIC_MAX_IRQ (MPIC_MAX_EXT + MPIC_MAX_INT + MPIC_MAX_TMR + MPIC_MAX_MSG + MPIC_MAX_MSI + (MPIC_MAX_IPI * MPIC_MAX_CPU))
/* Interrupt definitions */
-#define IRQ_FE (EXT_IRQ) /* Internal functional IRQ */
-#define IRQ_ERR (EXT_IRQ + 1) /* Error IRQ */
-#define IRQ_TIM0 (EXT_IRQ + 2) /* First timer IRQ */
-#if MAX_IPI > 0
-#define IRQ_IPI0 (IRQ_TIM0 + MAX_TMR) /* First IPI IRQ */
-#define IRQ_DBL0 (IRQ_IPI0 + (MAX_CPU * MAX_IPI)) /* First doorbell IRQ */
+#define MPIC_EXT_IRQ 0
+#define MPIC_INT_IRQ (MPIC_EXT_IRQ + MPIC_MAX_EXT)
+#define MPIC_TMR_IRQ (MPIC_INT_IRQ + MPIC_MAX_INT)
+#define MPIC_MSG_IRQ (MPIC_TMR_IRQ + MPIC_MAX_TMR)
+#define MPIC_MSI_IRQ (MPIC_MSG_IRQ + MPIC_MAX_MSG)
+#define MPIC_IPI_IRQ (MPIC_MSI_IRQ + MPIC_MAX_MSI)
+
+#define MPIC_GLB_REG_START 0x0
+#define MPIC_GLB_REG_SIZE 0x10F0
+#define MPIC_TMR_REG_START 0x10F0
+#define MPIC_TMR_REG_SIZE 0x220
+#define MPIC_EXT_REG_START 0x10000
+#define MPIC_EXT_REG_SIZE 0x180
+#define MPIC_INT_REG_START 0x10200
+#define MPIC_INT_REG_SIZE 0x800
+#define MPIC_MSG_REG_START 0x11600
+#define MPIC_MSG_REG_SIZE 0x100
+#define MPIC_MSI_REG_START 0x11C00
+#define MPIC_MSI_REG_SIZE 0x100
+#define MPIC_CPU_REG_START 0x20000
+#define MPIC_CPU_REG_SIZE 0x100
+
+enum mpic_ide_bits {
+ IDR_EP = 0,
+ IDR_CI0 = 1,
+ IDR_CI1 = 2,
+ IDR_P1 = 30,
+ IDR_P0 = 31,
+};
+
#else
-#define IRQ_DBL0 (IRQ_TIM0 + MAX_TMR) /* First doorbell IRQ */
-#define IRQ_MBX0 (IRQ_DBL0 + MAX_DBL) /* First mailbox IRQ */
+#error "Please select which OpenPic implementation is to be emulated"
#endif
#define BF_WIDTH(_bits_) \
IRQ_INTERNAL = 0x02,
IRQ_TIMER = 0x04,
IRQ_SPECIAL = 0x08,
-} IRQ_src_type;
+};
typedef struct IRQ_queue_t {
uint32_t queue[BF_WIDTH(MAX_IRQ)];
#define IPVP_VECTOR(_ipvpr_) ((_ipvpr_) & IPVP_VECTOR_MASK)
typedef struct IRQ_dst_t {
+ uint32_t tfrr;
uint32_t pctp; /* CPU current task priority */
uint32_t pcsr; /* CPU sensitivity register */
IRQ_queue_t raised;
IRQ_queue_t servicing;
- CPUState *env;
+ qemu_irq *irqs;
} IRQ_dst_t;
-struct openpic_t {
+typedef struct openpic_t {
PCIDevice pci_dev;
- SetIRQFunc *set_irq;
int mem_index;
/* Global registers */
uint32_t frep; /* Feature reporting register */
uint32_t glbc; /* Global configuration register */
uint32_t micr; /* MPIC interrupt configuration register */
uint32_t veni; /* Vendor identification register */
+ uint32_t pint; /* Processor initialization register */
uint32_t spve; /* Spurious vector register */
uint32_t tifr; /* Timer frequency reporting register */
/* Source registers */
uint32_t mbr; /* Mailbox register */
} mailboxes[MAX_MAILBOXES];
#endif
-};
+ /* IRQ out is used when in bypass mode (not implemented) */
+ qemu_irq irq_out;
+ int max_irq;
+ int irq_ipi0;
+ int irq_tim0;
+ int need_swap;
+ void (*reset) (void *);
+ void (*irq_raise) (struct openpic_t *, int, IRQ_src_t *);
+} openpic_t;
+
+static inline uint32_t openpic_swap32(openpic_t *opp, uint32_t val)
+{
+ if (opp->need_swap)
+ return bswap32(val);
+
+ return val;
+}
static inline void IRQ_setbit (IRQ_queue_t *q, int n_IRQ)
{
next = -1;
priority = -1;
- for (i = 0; i < MAX_IRQ; i++) {
+ for (i = 0; i < opp->max_irq; i++) {
if (IRQ_testbit(q, i)) {
- DPRINTF("IRQ_check: irq %d set ipvp_pr=%d pr=%d\n",
+ DPRINTF("IRQ_check: irq %d set ipvp_pr=%d pr=%d\n",
i, IPVP_PRIORITY(opp->src[i].ipvp), priority);
if (IPVP_PRIORITY(opp->src[i].ipvp) > priority) {
next = i;
priority = IPVP_PRIORITY(src->ipvp);
if (priority <= dst->pctp) {
/* Too low priority */
+ DPRINTF("%s: IRQ %d has too low priority on CPU %d\n",
+ __func__, n_IRQ, n_CPU);
return;
}
if (IRQ_testbit(&dst->raised, n_IRQ)) {
/* Interrupt miss */
+ DPRINTF("%s: IRQ %d was missed on CPU %d\n",
+ __func__, n_IRQ, n_CPU);
return;
}
set_bit(&src->ipvp, IPVP_ACTIVITY);
IRQ_setbit(&dst->raised, n_IRQ);
- if (priority > dst->raised.priority) {
- IRQ_get_next(opp, &dst->raised);
- DPRINTF("Raise CPU IRQ fn %p env %p\n", opp->set_irq, dst->env);
- opp->set_irq(dst->env, OPENPIC_EVT_INT, 1);
+ if (priority < dst->raised.priority) {
+ /* An higher priority IRQ is already raised */
+ DPRINTF("%s: IRQ %d is hidden by raised IRQ %d on CPU %d\n",
+ __func__, n_IRQ, dst->raised.next, n_CPU);
+ return;
}
+ IRQ_get_next(opp, &dst->raised);
+ if (IRQ_get_next(opp, &dst->servicing) != -1 &&
+ priority <= dst->servicing.priority) {
+ DPRINTF("%s: IRQ %d is hidden by servicing IRQ %d on CPU %d\n",
+ __func__, n_IRQ, dst->servicing.next, n_CPU);
+ /* Already servicing a higher priority IRQ */
+ return;
+ }
+ DPRINTF("Raise OpenPIC INT output cpu %d irq %d\n", n_CPU, n_IRQ);
+ opp->irq_raise(opp, n_CPU, src);
}
/* update pic state because registers for n_IRQ have changed value */
if (!src->pending) {
/* no irq pending */
+ DPRINTF("%s: IRQ %d is not pending\n", __func__, n_IRQ);
return;
}
if (test_bit(&src->ipvp, IPVP_MASK)) {
/* Interrupt source is disabled */
+ DPRINTF("%s: IRQ %d is disabled\n", __func__, n_IRQ);
return;
}
if (IPVP_PRIORITY(src->ipvp) == 0) {
/* Priority set to zero */
+ DPRINTF("%s: IRQ %d has 0 priority\n", __func__, n_IRQ);
return;
}
if (test_bit(&src->ipvp, IPVP_ACTIVITY)) {
/* IRQ already active */
+ DPRINTF("%s: IRQ %d is already active\n", __func__, n_IRQ);
return;
}
if (src->ide == 0x00000000) {
/* No target */
+ DPRINTF("%s: IRQ %d has no target\n", __func__, n_IRQ);
return;
}
- if (!test_bit(&src->ipvp, IPVP_MODE) ||
- src->ide == (1 << src->last_cpu)) {
+ if (src->ide == (1 << src->last_cpu)) {
+ /* Only one CPU is allowed to receive this IRQ */
+ IRQ_local_pipe(opp, src->last_cpu, n_IRQ);
+ } else if (!test_bit(&src->ipvp, IPVP_MODE)) {
/* Directed delivery mode */
for (i = 0; i < opp->nb_cpus; i++) {
if (test_bit(&src->ide, i))
}
} else {
/* Distributed delivery mode */
- /* XXX: incorrect code */
- for (i = src->last_cpu; i < src->last_cpu; i++) {
- if (i == MAX_IRQ)
+ for (i = src->last_cpu + 1; i != src->last_cpu; i++) {
+ if (i == opp->nb_cpus)
i = 0;
if (test_bit(&src->ide, i)) {
IRQ_local_pipe(opp, i, n_IRQ);
}
}
-void openpic_set_irq(void *opaque, int n_IRQ, int level)
+static void openpic_set_irq(void *opaque, int n_IRQ, int level)
{
openpic_t *opp = opaque;
IRQ_src_t *src;
src = &opp->src[n_IRQ];
- DPRINTF("openpic: set irq %d = %d ipvp=%08x\n",
+ DPRINTF("openpic: set irq %d = %d ipvp=%08x\n",
n_IRQ, level, src->ipvp);
if (test_bit(&src->ipvp, IPVP_SENSE)) {
/* level-sensitive irq */
openpic_update_irq(opp, n_IRQ);
}
-static void openpic_reset (openpic_t *opp)
+static void openpic_reset (void *opaque)
{
+ openpic_t *opp = (openpic_t *)opaque;
int i;
opp->glbc = 0x80000000;
/* Initialise controller registers */
- opp->frep = ((EXT_IRQ - 1) << 16) | ((MAX_CPU - 1) << 8) | VID;
+ opp->frep = ((OPENPIC_EXT_IRQ - 1) << 16) | ((MAX_CPU - 1) << 8) | VID;
opp->veni = VENI;
+ opp->pint = 0x00000000;
opp->spve = 0x000000FF;
opp->tifr = 0x003F7A00;
/* ? */
opp->micr = 0x00000000;
/* Initialise IRQ sources */
- for (i = 0; i < MAX_IRQ; i++) {
+ for (i = 0; i < opp->max_irq; i++) {
opp->src[i].ipvp = 0xA0000000;
opp->src[i].ide = 0x00000000;
}
/* Initialise IRQ destinations */
- for (i = 0; i < opp->nb_cpus; i++) {
+ for (i = 0; i < MAX_CPU; i++) {
opp->dst[i].pctp = 0x0000000F;
opp->dst[i].pcsr = 0x00000000;
memset(&opp->dst[i].raised, 0, sizeof(IRQ_queue_t));
/* NOTE: not fully accurate for special IRQs, but simple and
sufficient */
/* ACTIVITY bit is read-only */
- opp->src[n_IRQ].ipvp =
+ opp->src[n_IRQ].ipvp =
(opp->src[n_IRQ].ipvp & 0x40000000) |
(val & 0x800F00FF);
openpic_update_irq(opp, n_IRQ);
- DPRINTF("Set IPVP %d to 0x%08x -> 0x%08x\n",
+ DPRINTF("Set IPVP %d to 0x%08x -> 0x%08x\n",
n_IRQ, val, opp->src[n_IRQ].ipvp);
break;
case IRQ_IDE:
return retval;
}
-
+
static void write_doorbell_register (penpic_t *opp, int n_dbl,
uint32_t offset, uint32_t value)
{
#endif
#endif /* 0 : Code provision for Intel model */
-static void openpic_gbl_write (void *opaque, uint32_t addr, uint32_t val)
+static void openpic_gbl_write (void *opaque, target_phys_addr_t addr, uint32_t val)
{
openpic_t *opp = opaque;
+ IRQ_dst_t *dst;
+ int idx;
DPRINTF("%s: addr %08x <= %08x\n", __func__, addr, val);
if (addr & 0xF)
return;
-#if defined OPENPIC_SWAP
- val = bswap32(val);
+#if defined TARGET_WORDS_BIGENDIAN
+ val = openpic_swap32(opp, val);
#endif
addr &= 0xFF;
switch (addr) {
case 0x00: /* FREP */
break;
case 0x20: /* GLBC */
- if (val & 0x80000000)
- openpic_reset(opp);
+ if (val & 0x80000000 && opp->reset)
+ opp->reset(opp);
opp->glbc = val & ~0x80000000;
break;
case 0x80: /* VENI */
break;
case 0x90: /* PINT */
- /* XXX: Should be able to reset any CPU */
- if (val & 1) {
- DPRINTF("Reset CPU IRQ\n");
- // opp->set_irq(dst->env, OPENPIC_EVT_RESET, 1);
+ for (idx = 0; idx < opp->nb_cpus; idx++) {
+ if ((val & (1 << idx)) && !(opp->pint & (1 << idx))) {
+ DPRINTF("Raise OpenPIC RESET output for CPU %d\n", idx);
+ dst = &opp->dst[idx];
+ qemu_irq_raise(dst->irqs[OPENPIC_OUTPUT_RESET]);
+ } else if (!(val & (1 << idx)) && (opp->pint & (1 << idx))) {
+ DPRINTF("Lower OpenPIC RESET output for CPU %d\n", idx);
+ dst = &opp->dst[idx];
+ qemu_irq_lower(dst->irqs[OPENPIC_OUTPUT_RESET]);
+ }
}
+ opp->pint = val;
break;
#if MAX_IPI > 0
case 0xA0: /* IPI_IPVP */
{
int idx;
idx = (addr - 0xA0) >> 4;
- write_IRQreg(opp, IRQ_IPI0 + idx, IRQ_IPVP, val);
+ write_IRQreg(opp, opp->irq_ipi0 + idx, IRQ_IPVP, val);
}
break;
#endif
}
}
-static uint32_t openpic_gbl_read (void *opaque, uint32_t addr)
+static uint32_t openpic_gbl_read (void *opaque, target_phys_addr_t addr)
{
openpic_t *opp = opaque;
uint32_t retval;
{
int idx;
idx = (addr - 0xA0) >> 4;
- retval = read_IRQreg(opp, IRQ_IPI0 + idx, IRQ_IPVP);
+ retval = read_IRQreg(opp, opp->irq_ipi0 + idx, IRQ_IPVP);
}
break;
#endif
break;
}
DPRINTF("%s: => %08x\n", __func__, retval);
-#if defined OPENPIC_SWAP
- retval = bswap32(retval);
+#if defined TARGET_WORDS_BIGENDIAN
+ retval = openpic_swap32(opp, retval);
#endif
return retval;
DPRINTF("%s: addr %08x <= %08x\n", __func__, addr, val);
if (addr & 0xF)
return;
-#if defined OPENPIC_SWAP
- val = bswap32(val);
+#if defined TARGET_WORDS_BIGENDIAN
+ val = openpic_swap32(opp, val);
#endif
addr -= 0x1100;
addr &= 0xFFFF;
opp->timers[idx].tibc = val;
break;
case 0x20: /* TIVP */
- write_IRQreg(opp, IRQ_TIM0 + idx, IRQ_IPVP, val);
+ write_IRQreg(opp, opp->irq_tim0 + idx, IRQ_IPVP, val);
break;
case 0x30: /* TIDE */
- write_IRQreg(opp, IRQ_TIM0 + idx, IRQ_IDE, val);
+ write_IRQreg(opp, opp->irq_tim0 + idx, IRQ_IDE, val);
break;
}
}
retval = opp->timers[idx].tibc;
break;
case 0x20: /* TIPV */
- retval = read_IRQreg(opp, IRQ_TIM0 + idx, IRQ_IPVP);
+ retval = read_IRQreg(opp, opp->irq_tim0 + idx, IRQ_IPVP);
break;
case 0x30: /* TIDE */
- retval = read_IRQreg(opp, IRQ_TIM0 + idx, IRQ_IDE);
+ retval = read_IRQreg(opp, opp->irq_tim0 + idx, IRQ_IDE);
break;
}
DPRINTF("%s: => %08x\n", __func__, retval);
-#if defined OPENPIC_SWAP
- retval = bswap32(retval);
+#if defined TARGET_WORDS_BIGENDIAN
+ retval = openpic_swap32(opp, retval);
#endif
return retval;
DPRINTF("%s: addr %08x <= %08x\n", __func__, addr, val);
if (addr & 0xF)
return;
-#if defined OPENPIC_SWAP
- val = tswap32(val);
+#if defined TARGET_WORDS_BIGENDIAN
+ val = openpic_swap32(opp, val);
#endif
addr = addr & 0xFFF0;
idx = addr >> 5;
retval = read_IRQreg(opp, idx, IRQ_IPVP);
}
DPRINTF("%s: => %08x\n", __func__, retval);
-#if defined OPENPIC_SWAP
- retval = tswap32(retval);
+#if defined TARGET_WORDS_BIGENDIAN
+ retval = openpic_swap32(opp, retval);
#endif
return retval;
}
-static void openpic_cpu_write (void *opaque, uint32_t addr, uint32_t val)
+static void openpic_cpu_write (void *opaque, target_phys_addr_t addr, uint32_t val)
{
openpic_t *opp = opaque;
IRQ_src_t *src;
IRQ_dst_t *dst;
- int idx, n_IRQ;
+ int idx, s_IRQ, n_IRQ;
DPRINTF("%s: addr %08x <= %08x\n", __func__, addr, val);
if (addr & 0xF)
return;
-#if defined OPENPIC_SWAP
- val = bswap32(val);
+#if defined TARGET_WORDS_BIGENDIAN
+ val = openpic_swap32(opp, val);
#endif
addr &= 0x1FFF0;
idx = addr / 0x1000;
case 0x60:
case 0x70:
idx = (addr - 0x40) >> 4;
- write_IRQreg(opp, IRQ_IPI0 + idx, IRQ_IDE, val);
- openpic_set_irq(opp, IRQ_IPI0 + idx, 1);
- openpic_set_irq(opp, IRQ_IPI0 + idx, 0);
+ write_IRQreg(opp, opp->irq_ipi0 + idx, IRQ_IDE, val);
+ openpic_set_irq(opp, opp->irq_ipi0 + idx, 1);
+ openpic_set_irq(opp, opp->irq_ipi0 + idx, 0);
break;
#endif
case 0x80: /* PCTP */
break;
case 0xB0: /* PEOI */
DPRINTF("PEOI\n");
- n_IRQ = IRQ_get_next(opp, &dst->servicing);
- IRQ_resetbit(&dst->servicing, n_IRQ);
+ s_IRQ = IRQ_get_next(opp, &dst->servicing);
+ IRQ_resetbit(&dst->servicing, s_IRQ);
dst->servicing.next = -1;
- src = &opp->src[n_IRQ];
/* Set up next servicing IRQ */
- IRQ_get_next(opp, &dst->servicing);
- /* Check queued interrupts. */
- n_IRQ = IRQ_get_next(opp, &dst->raised);
- if (n_IRQ != -1) {
- src = &opp->src[n_IRQ];
- if (IPVP_PRIORITY(src->ipvp) > dst->servicing.priority) {
- DPRINTF("Raise CPU IRQ\n");
- opp->set_irq(dst->env, OPENPIC_EVT_INT, 1);
- }
- }
+ s_IRQ = IRQ_get_next(opp, &dst->servicing);
+ /* Check queued interrupts. */
+ n_IRQ = IRQ_get_next(opp, &dst->raised);
+ src = &opp->src[n_IRQ];
+ if (n_IRQ != -1 &&
+ (s_IRQ == -1 ||
+ IPVP_PRIORITY(src->ipvp) > dst->servicing.priority)) {
+ DPRINTF("Raise OpenPIC INT output cpu %d irq %d\n",
+ idx, n_IRQ);
+ opp->irq_raise(opp, idx, src);
+ }
break;
default:
break;
}
}
-static uint32_t openpic_cpu_read (void *opaque, uint32_t addr)
+static uint32_t openpic_cpu_read (void *opaque, target_phys_addr_t addr)
{
openpic_t *opp = opaque;
IRQ_src_t *src;
IRQ_dst_t *dst;
uint32_t retval;
int idx, n_IRQ;
-
+
DPRINTF("%s: addr %08x\n", __func__, addr);
retval = 0xFFFFFFFF;
if (addr & 0xF)
retval = idx;
break;
case 0xA0: /* PIAC */
+ DPRINTF("Lower OpenPIC INT output\n");
+ qemu_irq_lower(dst->irqs[OPENPIC_OUTPUT_INT]);
n_IRQ = IRQ_get_next(opp, &dst->raised);
DPRINTF("PIAC: irq=%d\n", n_IRQ);
if (n_IRQ == -1) {
/* No more interrupt pending */
- retval = opp->spve;
+ retval = IPVP_VECTOR(opp->spve);
} else {
src = &opp->src[n_IRQ];
if (!test_bit(&src->ipvp, IPVP_ACTIVITY) ||
case 0x40: /* IDE */
case 0x50:
idx = (addr - 0x40) >> 4;
- retval = read_IRQreg(opp, IRQ_IPI0 + idx, IRQ_IDE);
+ retval = read_IRQreg(opp, opp->irq_ipi0 + idx, IRQ_IDE);
break;
#endif
default:
break;
}
DPRINTF("%s: => %08x\n", __func__, retval);
-#if defined OPENPIC_SWAP
- retval= bswap32(retval);
+#if defined TARGET_WORDS_BIGENDIAN
+ retval = openpic_swap32(opp, retval);
#endif
return retval;
&openpic_readl,
};
-static void openpic_map(PCIDevice *pci_dev, int region_num,
+static void openpic_map(PCIDevice *pci_dev, int region_num,
uint32_t addr, uint32_t size, int type)
{
openpic_t *opp;
addr + 0x1100, addr + 0x1100 + 0x40 * MAX_TMR);
/* Interrupt source registers */
DPRINTF("Register OPENPIC src %08x => %08x\n",
- addr + 0x10000, addr + 0x10000 + 0x20 * (EXT_IRQ + 2));
+ addr + 0x10000, addr + 0x10000 + 0x20 * (OPENPIC_EXT_IRQ + 2));
/* Per CPU registers */
DPRINTF("Register OPENPIC dst %08x => %08x\n",
addr + 0x20000, addr + 0x20000 + 0x1000 * MAX_CPU);
#endif
}
-openpic_t *openpic_init (PCIBus *bus, SetIRQFunc *set_irq,
- int *pmem_index, int nb_cpus, CPUState **envp)
+static void openpic_save_IRQ_queue(QEMUFile* f, IRQ_queue_t *q)
+{
+ unsigned int i;
+
+ for (i = 0; i < BF_WIDTH(MAX_IRQ); i++)
+ qemu_put_be32s(f, &q->queue[i]);
+
+ qemu_put_sbe32s(f, &q->next);
+ qemu_put_sbe32s(f, &q->priority);
+}
+
+static void openpic_save(QEMUFile* f, void *opaque)
+{
+ openpic_t *opp = (openpic_t *)opaque;
+ unsigned int i;
+
+ qemu_put_be32s(f, &opp->frep);
+ qemu_put_be32s(f, &opp->glbc);
+ qemu_put_be32s(f, &opp->micr);
+ qemu_put_be32s(f, &opp->veni);
+ qemu_put_be32s(f, &opp->pint);
+ qemu_put_be32s(f, &opp->spve);
+ qemu_put_be32s(f, &opp->tifr);
+
+ for (i = 0; i < opp->max_irq; i++) {
+ qemu_put_be32s(f, &opp->src[i].ipvp);
+ qemu_put_be32s(f, &opp->src[i].ide);
+ qemu_put_sbe32s(f, &opp->src[i].type);
+ qemu_put_sbe32s(f, &opp->src[i].last_cpu);
+ qemu_put_sbe32s(f, &opp->src[i].pending);
+ }
+
+ qemu_put_sbe32s(f, &opp->nb_cpus);
+
+ for (i = 0; i < opp->nb_cpus; i++) {
+ qemu_put_be32s(f, &opp->dst[i].tfrr);
+ qemu_put_be32s(f, &opp->dst[i].pctp);
+ qemu_put_be32s(f, &opp->dst[i].pcsr);
+ openpic_save_IRQ_queue(f, &opp->dst[i].raised);
+ openpic_save_IRQ_queue(f, &opp->dst[i].servicing);
+ }
+
+ for (i = 0; i < MAX_TMR; i++) {
+ qemu_put_be32s(f, &opp->timers[i].ticc);
+ qemu_put_be32s(f, &opp->timers[i].tibc);
+ }
+
+#if MAX_DBL > 0
+ qemu_put_be32s(f, &opp->dar);
+
+ for (i = 0; i < MAX_DBL; i++) {
+ qemu_put_be32s(f, &opp->doorbells[i].dmr);
+ }
+#endif
+
+#if MAX_MBX > 0
+ for (i = 0; i < MAX_MAILBOXES; i++) {
+ qemu_put_be32s(f, &opp->mailboxes[i].mbr);
+ }
+#endif
+
+ pci_device_save(&opp->pci_dev, f);
+}
+
+static void openpic_load_IRQ_queue(QEMUFile* f, IRQ_queue_t *q)
+{
+ unsigned int i;
+
+ for (i = 0; i < BF_WIDTH(MAX_IRQ); i++)
+ qemu_get_be32s(f, &q->queue[i]);
+
+ qemu_get_sbe32s(f, &q->next);
+ qemu_get_sbe32s(f, &q->priority);
+}
+
+static int openpic_load(QEMUFile* f, void *opaque, int version_id)
+{
+ openpic_t *opp = (openpic_t *)opaque;
+ unsigned int i;
+
+ if (version_id != 1)
+ return -EINVAL;
+
+ qemu_get_be32s(f, &opp->frep);
+ qemu_get_be32s(f, &opp->glbc);
+ qemu_get_be32s(f, &opp->micr);
+ qemu_get_be32s(f, &opp->veni);
+ qemu_get_be32s(f, &opp->pint);
+ qemu_get_be32s(f, &opp->spve);
+ qemu_get_be32s(f, &opp->tifr);
+
+ for (i = 0; i < opp->max_irq; i++) {
+ qemu_get_be32s(f, &opp->src[i].ipvp);
+ qemu_get_be32s(f, &opp->src[i].ide);
+ qemu_get_sbe32s(f, &opp->src[i].type);
+ qemu_get_sbe32s(f, &opp->src[i].last_cpu);
+ qemu_get_sbe32s(f, &opp->src[i].pending);
+ }
+
+ qemu_get_sbe32s(f, &opp->nb_cpus);
+
+ for (i = 0; i < opp->nb_cpus; i++) {
+ qemu_get_be32s(f, &opp->dst[i].tfrr);
+ qemu_get_be32s(f, &opp->dst[i].pctp);
+ qemu_get_be32s(f, &opp->dst[i].pcsr);
+ openpic_load_IRQ_queue(f, &opp->dst[i].raised);
+ openpic_load_IRQ_queue(f, &opp->dst[i].servicing);
+ }
+
+ for (i = 0; i < MAX_TMR; i++) {
+ qemu_get_be32s(f, &opp->timers[i].ticc);
+ qemu_get_be32s(f, &opp->timers[i].tibc);
+ }
+
+#if MAX_DBL > 0
+ qemu_get_be32s(f, &opp->dar);
+
+ for (i = 0; i < MAX_DBL; i++) {
+ qemu_get_be32s(f, &opp->doorbells[i].dmr);
+ }
+#endif
+
+#if MAX_MBX > 0
+ for (i = 0; i < MAX_MAILBOXES; i++) {
+ qemu_get_be32s(f, &opp->mailboxes[i].mbr);
+ }
+#endif
+
+ return pci_device_load(&opp->pci_dev, f);
+}
+
+static void openpic_irq_raise(openpic_t *opp, int n_CPU, IRQ_src_t *src)
+{
+ qemu_irq_raise(opp->dst[n_CPU].irqs[OPENPIC_OUTPUT_INT]);
+}
+
+qemu_irq *openpic_init (PCIBus *bus, int *pmem_index, int nb_cpus,
+ qemu_irq **irqs, qemu_irq irq_out)
{
openpic_t *opp;
uint8_t *pci_conf;
int i, m;
-
+
/* XXX: for now, only one CPU is supported */
if (nb_cpus != 1)
return NULL;
if (opp == NULL)
return NULL;
pci_conf = opp->pci_dev.config;
- pci_conf[0x00] = 0x14; // IBM MPIC2
- pci_conf[0x01] = 0x10;
- pci_conf[0x02] = 0xFF;
- pci_conf[0x03] = 0xFF;
- pci_conf[0x0a] = 0x80; // PIC
- pci_conf[0x0b] = 0x08;
- pci_conf[0x0e] = 0x00; // header_type
+ pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_IBM);
+ pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_IBM_OPENPIC2);
+ pci_config_set_class(pci_conf, PCI_CLASS_SYSTEM_OTHER); // FIXME?
+ pci_conf[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
pci_conf[0x3d] = 0x00; // no interrupt pin
-
+
/* Register I/O spaces */
pci_register_io_region((PCIDevice *)opp, 0, 0x40000,
PCI_ADDRESS_SPACE_MEM, &openpic_map);
} else {
opp = qemu_mallocz(sizeof(openpic_t));
}
- opp->set_irq = set_irq;
opp->mem_index = cpu_register_io_memory(0, openpic_read,
openpic_write, opp);
-
+
// isu_base &= 0xFFFC0000;
opp->nb_cpus = nb_cpus;
+ opp->max_irq = OPENPIC_MAX_IRQ;
+ opp->irq_ipi0 = OPENPIC_IRQ_IPI0;
+ opp->irq_tim0 = OPENPIC_IRQ_TIM0;
/* Set IRQ types */
- for (i = 0; i < EXT_IRQ; i++) {
+ for (i = 0; i < OPENPIC_EXT_IRQ; i++) {
opp->src[i].type = IRQ_EXTERNAL;
}
- for (; i < IRQ_TIM0; i++) {
+ for (; i < OPENPIC_IRQ_TIM0; i++) {
opp->src[i].type = IRQ_SPECIAL;
}
#if MAX_IPI > 0
- m = IRQ_IPI0;
+ m = OPENPIC_IRQ_IPI0;
#else
- m = IRQ_DBL0;
+ m = OPENPIC_IRQ_DBL0;
#endif
for (; i < m; i++) {
opp->src[i].type = IRQ_TIMER;
}
- for (; i < MAX_IRQ; i++) {
+ for (; i < OPENPIC_MAX_IRQ; i++) {
opp->src[i].type = IRQ_INTERNAL;
}
for (i = 0; i < nb_cpus; i++)
- opp->dst[i].env = envp[i];
- openpic_reset(opp);
+ opp->dst[i].irqs = irqs[i];
+ opp->irq_out = irq_out;
+ opp->need_swap = 1;
+
+ register_savevm("openpic", 0, 2, openpic_save, openpic_load, opp);
+ qemu_register_reset(openpic_reset, 0, opp);
+
+ opp->irq_raise = openpic_irq_raise;
+ opp->reset = openpic_reset;
+
+ opp->reset(opp);
if (pmem_index)
*pmem_index = opp->mem_index;
- return opp;
+
+ return qemu_allocate_irqs(openpic_set_irq, opp, opp->max_irq);
+}
+
+static void mpic_irq_raise(openpic_t *mpp, int n_CPU, IRQ_src_t *src)
+{
+ int n_ci = IDR_CI0 - n_CPU;
+ DPRINTF("%s: cpu:%d irq:%d (testbit idr:%x ci:%d)\n", __func__,
+ n_CPU, n_IRQ, mpp->src[n_IRQ].ide, n_ci);
+ if(test_bit(&src->ide, n_ci)) {
+ qemu_irq_raise(mpp->dst[n_CPU].irqs[OPENPIC_OUTPUT_CINT]);
+ }
+ else {
+ qemu_irq_raise(mpp->dst[n_CPU].irqs[OPENPIC_OUTPUT_INT]);
+ }
+}
+
+static void mpic_reset (void *opaque)
+{
+ openpic_t *mpp = (openpic_t *)opaque;
+ int i;
+
+ mpp->glbc = 0x80000000;
+ /* Initialise controller registers */
+ mpp->frep = 0x004f0002;
+ mpp->veni = VENI;
+ mpp->pint = 0x00000000;
+ mpp->spve = 0x0000FFFF;
+ /* Initialise IRQ sources */
+ for (i = 0; i < mpp->max_irq; i++) {
+ mpp->src[i].ipvp = 0x80800000;
+ mpp->src[i].ide = 0x00000001;
+ }
+ /* Initialise IRQ destinations */
+ for (i = 0; i < MAX_CPU; i++) {
+ mpp->dst[i].pctp = 0x0000000F;
+ mpp->dst[i].tfrr = 0x00000000;
+ memset(&mpp->dst[i].raised, 0, sizeof(IRQ_queue_t));
+ mpp->dst[i].raised.next = -1;
+ memset(&mpp->dst[i].servicing, 0, sizeof(IRQ_queue_t));
+ mpp->dst[i].servicing.next = -1;
+ }
+ /* Initialise timers */
+ for (i = 0; i < MAX_TMR; i++) {
+ mpp->timers[i].ticc = 0x00000000;
+ mpp->timers[i].tibc = 0x80000000;
+ }
+ /* Go out of RESET state */
+ mpp->glbc = 0x00000000;
+}
+
+static void mpic_timer_write (void *opaque, target_phys_addr_t addr, uint32_t val)
+{
+ openpic_t *mpp = opaque;
+ int idx, cpu;
+
+ DPRINTF("%s: addr %08x <= %08x\n", __func__, addr, val);
+ if (addr & 0xF)
+ return;
+ addr &= 0xFFFF;
+ cpu = addr >> 12;
+ idx = (addr >> 6) & 0x3;
+ switch (addr & 0x30) {
+ case 0x00: /* gtccr */
+ break;
+ case 0x10: /* gtbcr */
+ if ((mpp->timers[idx].ticc & 0x80000000) != 0 &&
+ (val & 0x80000000) == 0 &&
+ (mpp->timers[idx].tibc & 0x80000000) != 0)
+ mpp->timers[idx].ticc &= ~0x80000000;
+ mpp->timers[idx].tibc = val;
+ break;
+ case 0x20: /* GTIVPR */
+ write_IRQreg(mpp, MPIC_TMR_IRQ + idx, IRQ_IPVP, val);
+ break;
+ case 0x30: /* GTIDR & TFRR */
+ if ((addr & 0xF0) == 0xF0)
+ mpp->dst[cpu].tfrr = val;
+ else
+ write_IRQreg(mpp, MPIC_TMR_IRQ + idx, IRQ_IDE, val);
+ break;
+ }
+}
+
+static uint32_t mpic_timer_read (void *opaque, target_phys_addr_t addr)
+{
+ openpic_t *mpp = opaque;
+ uint32_t retval;
+ int idx, cpu;
+
+ DPRINTF("%s: addr %08x\n", __func__, addr);
+ retval = 0xFFFFFFFF;
+ if (addr & 0xF)
+ return retval;
+ addr &= 0xFFFF;
+ cpu = addr >> 12;
+ idx = (addr >> 6) & 0x3;
+ switch (addr & 0x30) {
+ case 0x00: /* gtccr */
+ retval = mpp->timers[idx].ticc;
+ break;
+ case 0x10: /* gtbcr */
+ retval = mpp->timers[idx].tibc;
+ break;
+ case 0x20: /* TIPV */
+ retval = read_IRQreg(mpp, MPIC_TMR_IRQ + idx, IRQ_IPVP);
+ break;
+ case 0x30: /* TIDR */
+ if ((addr &0xF0) == 0XF0)
+ retval = mpp->dst[cpu].tfrr;
+ else
+ retval = read_IRQreg(mpp, MPIC_TMR_IRQ + idx, IRQ_IDE);
+ break;
+ }
+ DPRINTF("%s: => %08x\n", __func__, retval);
+
+ return retval;
+}
+
+static void mpic_src_ext_write (void *opaque, target_phys_addr_t addr,
+ uint32_t val)
+{
+ openpic_t *mpp = opaque;
+ int idx = MPIC_EXT_IRQ;
+
+ DPRINTF("%s: addr %08x <= %08x\n", __func__, addr, val);
+ if (addr & 0xF)
+ return;
+
+ addr -= MPIC_EXT_REG_START & (TARGET_PAGE_SIZE - 1);
+ if (addr < MPIC_EXT_REG_SIZE) {
+ idx += (addr & 0xFFF0) >> 5;
+ if (addr & 0x10) {
+ /* EXDE / IFEDE / IEEDE */
+ write_IRQreg(mpp, idx, IRQ_IDE, val);
+ } else {
+ /* EXVP / IFEVP / IEEVP */
+ write_IRQreg(mpp, idx, IRQ_IPVP, val);
+ }
+ }
+}
+
+static uint32_t mpic_src_ext_read (void *opaque, target_phys_addr_t addr)
+{
+ openpic_t *mpp = opaque;
+ uint32_t retval;
+ int idx = MPIC_EXT_IRQ;
+
+ DPRINTF("%s: addr %08x\n", __func__, addr);
+ retval = 0xFFFFFFFF;
+ if (addr & 0xF)
+ return retval;
+
+ addr -= MPIC_EXT_REG_START & (TARGET_PAGE_SIZE - 1);
+ if (addr < MPIC_EXT_REG_SIZE) {
+ idx += (addr & 0xFFF0) >> 5;
+ if (addr & 0x10) {
+ /* EXDE / IFEDE / IEEDE */
+ retval = read_IRQreg(mpp, idx, IRQ_IDE);
+ } else {
+ /* EXVP / IFEVP / IEEVP */
+ retval = read_IRQreg(mpp, idx, IRQ_IPVP);
+ }
+ DPRINTF("%s: => %08x\n", __func__, retval);
+ }
+
+ return retval;
+}
+
+static void mpic_src_int_write (void *opaque, target_phys_addr_t addr,
+ uint32_t val)
+{
+ openpic_t *mpp = opaque;
+ int idx = MPIC_INT_IRQ;
+
+ DPRINTF("%s: addr %08x <= %08x\n", __func__, addr, val);
+ if (addr & 0xF)
+ return;
+
+ addr -= MPIC_INT_REG_START & (TARGET_PAGE_SIZE - 1);
+ if (addr < MPIC_INT_REG_SIZE) {
+ idx += (addr & 0xFFF0) >> 5;
+ if (addr & 0x10) {
+ /* EXDE / IFEDE / IEEDE */
+ write_IRQreg(mpp, idx, IRQ_IDE, val);
+ } else {
+ /* EXVP / IFEVP / IEEVP */
+ write_IRQreg(mpp, idx, IRQ_IPVP, val);
+ }
+ }
+}
+
+static uint32_t mpic_src_int_read (void *opaque, target_phys_addr_t addr)
+{
+ openpic_t *mpp = opaque;
+ uint32_t retval;
+ int idx = MPIC_INT_IRQ;
+
+ DPRINTF("%s: addr %08x\n", __func__, addr);
+ retval = 0xFFFFFFFF;
+ if (addr & 0xF)
+ return retval;
+
+ addr -= MPIC_INT_REG_START & (TARGET_PAGE_SIZE - 1);
+ if (addr < MPIC_INT_REG_SIZE) {
+ idx += (addr & 0xFFF0) >> 5;
+ if (addr & 0x10) {
+ /* EXDE / IFEDE / IEEDE */
+ retval = read_IRQreg(mpp, idx, IRQ_IDE);
+ } else {
+ /* EXVP / IFEVP / IEEVP */
+ retval = read_IRQreg(mpp, idx, IRQ_IPVP);
+ }
+ DPRINTF("%s: => %08x\n", __func__, retval);
+ }
+
+ return retval;
+}
+
+static void mpic_src_msg_write (void *opaque, target_phys_addr_t addr,
+ uint32_t val)
+{
+ openpic_t *mpp = opaque;
+ int idx = MPIC_MSG_IRQ;
+
+ DPRINTF("%s: addr %08x <= %08x\n", __func__, addr, val);
+ if (addr & 0xF)
+ return;
+
+ addr -= MPIC_MSG_REG_START & (TARGET_PAGE_SIZE - 1);
+ if (addr < MPIC_MSG_REG_SIZE) {
+ idx += (addr & 0xFFF0) >> 5;
+ if (addr & 0x10) {
+ /* EXDE / IFEDE / IEEDE */
+ write_IRQreg(mpp, idx, IRQ_IDE, val);
+ } else {
+ /* EXVP / IFEVP / IEEVP */
+ write_IRQreg(mpp, idx, IRQ_IPVP, val);
+ }
+ }
+}
+
+static uint32_t mpic_src_msg_read (void *opaque, target_phys_addr_t addr)
+{
+ openpic_t *mpp = opaque;
+ uint32_t retval;
+ int idx = MPIC_MSG_IRQ;
+
+ DPRINTF("%s: addr %08x\n", __func__, addr);
+ retval = 0xFFFFFFFF;
+ if (addr & 0xF)
+ return retval;
+
+ addr -= MPIC_MSG_REG_START & (TARGET_PAGE_SIZE - 1);
+ if (addr < MPIC_MSG_REG_SIZE) {
+ idx += (addr & 0xFFF0) >> 5;
+ if (addr & 0x10) {
+ /* EXDE / IFEDE / IEEDE */
+ retval = read_IRQreg(mpp, idx, IRQ_IDE);
+ } else {
+ /* EXVP / IFEVP / IEEVP */
+ retval = read_IRQreg(mpp, idx, IRQ_IPVP);
+ }
+ DPRINTF("%s: => %08x\n", __func__, retval);
+ }
+
+ return retval;
+}
+
+static void mpic_src_msi_write (void *opaque, target_phys_addr_t addr,
+ uint32_t val)
+{
+ openpic_t *mpp = opaque;
+ int idx = MPIC_MSI_IRQ;
+
+ DPRINTF("%s: addr %08x <= %08x\n", __func__, addr, val);
+ if (addr & 0xF)
+ return;
+
+ addr -= MPIC_MSI_REG_START & (TARGET_PAGE_SIZE - 1);
+ if (addr < MPIC_MSI_REG_SIZE) {
+ idx += (addr & 0xFFF0) >> 5;
+ if (addr & 0x10) {
+ /* EXDE / IFEDE / IEEDE */
+ write_IRQreg(mpp, idx, IRQ_IDE, val);
+ } else {
+ /* EXVP / IFEVP / IEEVP */
+ write_IRQreg(mpp, idx, IRQ_IPVP, val);
+ }
+ }
+}
+static uint32_t mpic_src_msi_read (void *opaque, target_phys_addr_t addr)
+{
+ openpic_t *mpp = opaque;
+ uint32_t retval;
+ int idx = MPIC_MSI_IRQ;
+
+ DPRINTF("%s: addr %08x\n", __func__, addr);
+ retval = 0xFFFFFFFF;
+ if (addr & 0xF)
+ return retval;
+
+ addr -= MPIC_MSI_REG_START & (TARGET_PAGE_SIZE - 1);
+ if (addr < MPIC_MSI_REG_SIZE) {
+ idx += (addr & 0xFFF0) >> 5;
+ if (addr & 0x10) {
+ /* EXDE / IFEDE / IEEDE */
+ retval = read_IRQreg(mpp, idx, IRQ_IDE);
+ } else {
+ /* EXVP / IFEVP / IEEVP */
+ retval = read_IRQreg(mpp, idx, IRQ_IPVP);
+ }
+ DPRINTF("%s: => %08x\n", __func__, retval);
+ }
+
+ return retval;
+}
+
+static CPUWriteMemoryFunc *mpic_glb_write[] = {
+ &openpic_buggy_write,
+ &openpic_buggy_write,
+ &openpic_gbl_write,
+};
+
+static CPUReadMemoryFunc *mpic_glb_read[] = {
+ &openpic_buggy_read,
+ &openpic_buggy_read,
+ &openpic_gbl_read,
+};
+
+static CPUWriteMemoryFunc *mpic_tmr_write[] = {
+ &openpic_buggy_write,
+ &openpic_buggy_write,
+ &mpic_timer_write,
+};
+
+static CPUReadMemoryFunc *mpic_tmr_read[] = {
+ &openpic_buggy_read,
+ &openpic_buggy_read,
+ &mpic_timer_read,
+};
+
+static CPUWriteMemoryFunc *mpic_cpu_write[] = {
+ &openpic_buggy_write,
+ &openpic_buggy_write,
+ &openpic_cpu_write,
+};
+
+static CPUReadMemoryFunc *mpic_cpu_read[] = {
+ &openpic_buggy_read,
+ &openpic_buggy_read,
+ &openpic_cpu_read,
+};
+
+static CPUWriteMemoryFunc *mpic_ext_write[] = {
+ &openpic_buggy_write,
+ &openpic_buggy_write,
+ &mpic_src_ext_write,
+};
+
+static CPUReadMemoryFunc *mpic_ext_read[] = {
+ &openpic_buggy_read,
+ &openpic_buggy_read,
+ &mpic_src_ext_read,
+};
+
+static CPUWriteMemoryFunc *mpic_int_write[] = {
+ &openpic_buggy_write,
+ &openpic_buggy_write,
+ &mpic_src_int_write,
+};
+
+static CPUReadMemoryFunc *mpic_int_read[] = {
+ &openpic_buggy_read,
+ &openpic_buggy_read,
+ &mpic_src_int_read,
+};
+
+static CPUWriteMemoryFunc *mpic_msg_write[] = {
+ &openpic_buggy_write,
+ &openpic_buggy_write,
+ &mpic_src_msg_write,
+};
+
+static CPUReadMemoryFunc *mpic_msg_read[] = {
+ &openpic_buggy_read,
+ &openpic_buggy_read,
+ &mpic_src_msg_read,
+};
+static CPUWriteMemoryFunc *mpic_msi_write[] = {
+ &openpic_buggy_write,
+ &openpic_buggy_write,
+ &mpic_src_msi_write,
+};
+
+static CPUReadMemoryFunc *mpic_msi_read[] = {
+ &openpic_buggy_read,
+ &openpic_buggy_read,
+ &mpic_src_msi_read,
+};
+
+qemu_irq *mpic_init (target_phys_addr_t base, int nb_cpus,
+ qemu_irq **irqs, qemu_irq irq_out)
+{
+ openpic_t *mpp;
+ int i;
+ struct {
+ CPUReadMemoryFunc **read;
+ CPUWriteMemoryFunc **write;
+ target_phys_addr_t start_addr;
+ ram_addr_t size;
+ } const list[] = {
+ {mpic_glb_read, mpic_glb_write, MPIC_GLB_REG_START, MPIC_GLB_REG_SIZE},
+ {mpic_tmr_read, mpic_tmr_write, MPIC_TMR_REG_START, MPIC_TMR_REG_SIZE},
+ {mpic_ext_read, mpic_ext_write, MPIC_EXT_REG_START, MPIC_EXT_REG_SIZE},
+ {mpic_int_read, mpic_int_write, MPIC_INT_REG_START, MPIC_INT_REG_SIZE},
+ {mpic_msg_read, mpic_msg_write, MPIC_MSG_REG_START, MPIC_MSG_REG_SIZE},
+ {mpic_msi_read, mpic_msi_write, MPIC_MSI_REG_START, MPIC_MSI_REG_SIZE},
+ {mpic_cpu_read, mpic_cpu_write, MPIC_CPU_REG_START, MPIC_CPU_REG_SIZE},
+ };
+
+ /* XXX: for now, only one CPU is supported */
+ if (nb_cpus != 1)
+ return NULL;
+
+ mpp = qemu_mallocz(sizeof(openpic_t));
+
+ for (i = 0; i < sizeof(list)/sizeof(list[0]); i++) {
+ int mem_index;
+
+ mem_index = cpu_register_io_memory(0, list[i].read, list[i].write, mpp);
+ if (mem_index < 0) {
+ goto free;
+ }
+ cpu_register_physical_memory(base + list[i].start_addr,
+ list[i].size, mem_index);
+ }
+
+ mpp->nb_cpus = nb_cpus;
+ mpp->max_irq = MPIC_MAX_IRQ;
+ mpp->irq_ipi0 = MPIC_IPI_IRQ;
+ mpp->irq_tim0 = MPIC_TMR_IRQ;
+
+ for (i = 0; i < nb_cpus; i++)
+ mpp->dst[i].irqs = irqs[i];
+ mpp->irq_out = irq_out;
+ mpp->need_swap = 0; /* MPIC has the same endian as target */
+
+ mpp->irq_raise = mpic_irq_raise;
+ mpp->reset = mpic_reset;
+
+ register_savevm("mpic", 0, 2, openpic_save, openpic_load, mpp);
+ qemu_register_reset(mpic_reset, 0, mpp);
+ mpp->reset(mpp);
+
+ return qemu_allocate_irqs(openpic_set_irq, mpp, mpp->max_irq);
+
+free:
+ qemu_free(mpp);
+ return NULL;
}
projects / qemu / blobdiff