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kvm/powerpc: Enable MPIC for E500 platform. 

MPIC and OpenPIC have very similar design.
So a lot of code can be reused.

Signed-off-by: Liu Yu <yu.liu@freescale.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6659 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aurel32 2009-03-02 16:42:04 +00:00
parent 72249e34c0
commit b716991671
4 changed files with 622 additions and 91 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

681
hw/openpic.c
View File

@ -35,6 +35,7 @@
#include "hw.h"
#include "ppc_mac.h"
#include "pci.h"
#include "openpic.h"
//#define DEBUG_OPENPIC
@ -60,14 +61,10 @@
#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
@ -81,30 +78,70 @@ enum {
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
#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
/* 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 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
#error "Please select which OpenPic implementation is to be emulated"
#endif
#if (OPENPIC_BIG_ENDIAN && !TARGET_WORDS_BIGENDIAN) || \
(OPENPIC_LITTLE_ENDIAN && TARGET_WORDS_BIGENDIAN)
#define OPENPIC_SWAP
#endif
/* 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 */
#else
#define IRQ_DBL0 (IRQ_TIM0 + MAX_TMR) /* First doorbell IRQ */
#define IRQ_MBX0 (IRQ_DBL0 + MAX_DBL) /* First mailbox IRQ */
#endif
#define BF_WIDTH(_bits_) \
(((_bits_) + (sizeof(uint32_t) * 8) - 1) / (sizeof(uint32_t) * 8))
@ -157,6 +194,7 @@ enum IPVP_bits {
#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;
@ -200,8 +238,22 @@ typedef struct openpic_t {
#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)
{
set_bit(q->queue, n_IRQ);
@ -224,7 +276,7 @@ static void IRQ_check (openpic_t *opp, IRQ_queue_t *q)
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",
i, IPVP_PRIORITY(opp->src[i].ipvp), priority);
@ -286,7 +338,7 @@ static void IRQ_local_pipe (openpic_t *opp, int n_CPU, int n_IRQ)
return;
}
DPRINTF("Raise OpenPIC INT output cpu %d irq %d\n", n_CPU, n_IRQ);
qemu_irq_raise(dst->irqs[OPENPIC_OUTPUT_INT]);
opp->irq_raise(opp, n_CPU, src);
}
/* update pic state because registers for n_IRQ have changed value */
@ -374,7 +426,7 @@ static void openpic_reset (void *opaque)
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;
@ -382,7 +434,7 @@ static void openpic_reset (void *opaque)
/* ? */
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;
}
@ -535,7 +587,7 @@ static void write_mailbox_register (openpic_t *opp, int n_mbx,
#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;
@ -544,16 +596,16 @@ static void openpic_gbl_write (void *opaque, uint32_t addr, uint32_t val)
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 */
@ -580,7 +632,7 @@ static void openpic_gbl_write (void *opaque, uint32_t addr, uint32_t val)
{
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
@ -595,7 +647,7 @@ static void openpic_gbl_write (void *opaque, uint32_t addr, uint32_t val)
}
}
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;
@ -626,7 +678,7 @@ static uint32_t openpic_gbl_read (void *opaque, uint32_t addr)
{
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
@ -640,8 +692,8 @@ static uint32_t openpic_gbl_read (void *opaque, uint32_t addr)
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;
@ -655,8 +707,8 @@ static void openpic_timer_write (void *opaque, uint32_t addr, uint32_t val)
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;
@ -673,10 +725,10 @@ static void openpic_timer_write (void *opaque, uint32_t addr, uint32_t val)
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;
}
}
@ -703,15 +755,15 @@ static uint32_t openpic_timer_read (void *opaque, uint32_t addr)
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;
@ -725,8 +777,8 @@ static void openpic_src_write (void *opaque, uint32_t addr, uint32_t val)
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;
@ -759,14 +811,14 @@ static uint32_t openpic_src_read (void *opaque, uint32_t addr)
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;
@ -776,8 +828,8 @@ static void openpic_cpu_write (void *opaque, uint32_t addr, uint32_t val)
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;
@ -790,9 +842,9 @@ static void openpic_cpu_write (void *opaque, uint32_t addr, uint32_t val)
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 */
@ -819,7 +871,7 @@ static void openpic_cpu_write (void *opaque, uint32_t addr, uint32_t val)
IPVP_PRIORITY(src->ipvp) > dst->servicing.priority)) {
DPRINTF("Raise OpenPIC INT output cpu %d irq %d\n",
idx, n_IRQ);
qemu_irq_raise(dst->irqs[OPENPIC_OUTPUT_INT]);
opp->irq_raise(opp, idx, src);
}
break;
default:
@ -827,7 +879,7 @@ static void openpic_cpu_write (void *opaque, uint32_t addr, uint32_t val)
}
}
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;
@ -889,15 +941,15 @@ static uint32_t openpic_cpu_read (void *opaque, uint32_t addr)
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;
@ -989,7 +1041,7 @@ static void openpic_map(PCIDevice *pci_dev, int region_num,
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);
@ -1026,7 +1078,7 @@ static void openpic_save(QEMUFile* f, void *opaque)
qemu_put_be32s(f, &opp->spve);
qemu_put_be32s(f, &opp->tifr);
for (i = 0; i < MAX_IRQ; i++) {
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);
@ -1034,15 +1086,16 @@ static void openpic_save(QEMUFile* f, void *opaque)
qemu_put_sbe32s(f, &opp->src[i].pending);
}
for (i = 0; i < MAX_IRQ; i++) {
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);
}
qemu_put_sbe32s(f, &opp->nb_cpus);
for (i = 0; i < MAX_TMR; i++) {
qemu_put_be32s(f, &opp->timers[i].ticc);
qemu_put_be32s(f, &opp->timers[i].tibc);
@ -1092,7 +1145,7 @@ static int openpic_load(QEMUFile* f, void *opaque, int version_id)
qemu_get_be32s(f, &opp->spve);
qemu_get_be32s(f, &opp->tifr);
for (i = 0; i < MAX_IRQ; i++) {
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);
@ -1100,15 +1153,16 @@ static int openpic_load(QEMUFile* f, void *opaque, int version_id)
qemu_get_sbe32s(f, &opp->src[i].pending);
}
for (i = 0; i < MAX_IRQ; i++) {
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);
}
qemu_get_sbe32s(f, &opp->nb_cpus);
for (i = 0; i < MAX_TMR; i++) {
qemu_get_be32s(f, &opp->timers[i].ticc);
qemu_get_be32s(f, &opp->timers[i].tibc);
@ -1131,6 +1185,11 @@ static int openpic_load(QEMUFile* f, void *opaque, int version_id)
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)
{
@ -1164,33 +1223,499 @@ qemu_irq *openpic_init (PCIBus *bus, int *pmem_index, int nb_cpus,
// 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].irqs = irqs[i];
opp->irq_out = irq_out;
opp->need_swap = 1;
register_savevm("openpic", 0, 1, openpic_save, openpic_load, opp);
register_savevm("openpic", 0, 2, openpic_save, openpic_load, opp);
qemu_register_reset(openpic_reset, opp);
openpic_reset(opp);
opp->irq_raise = openpic_irq_raise;
opp->reset = openpic_reset;
opp->reset(opp);
if (pmem_index)
*pmem_index = opp->mem_index;
return qemu_allocate_irqs(openpic_set_irq, opp, MAX_IRQ);
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;
} 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, mpp);
mpp->reset(mpp);
return qemu_allocate_irqs(openpic_set_irq, mpp, mpp->max_irq);
free:
qemu_free(mpp);
return NULL;
}

18
hw/openpic.h Normal file
View File

@ -0,0 +1,18 @@
#if !defined(__OPENPIC_H__)
#define __OPENPIC_H__
/* OpenPIC have 5 outputs per CPU connected and one IRQ out single output */
enum {
OPENPIC_OUTPUT_INT = 0, /* IRQ */
OPENPIC_OUTPUT_CINT, /* critical IRQ */
OPENPIC_OUTPUT_MCK, /* Machine check event */
OPENPIC_OUTPUT_DEBUG, /* Inconditional debug event */
OPENPIC_OUTPUT_RESET, /* Core reset event */
OPENPIC_OUTPUT_NB,
};
qemu_irq *openpic_init (PCIBus *bus, int *pmem_index, int nb_cpus,
qemu_irq **irqs, qemu_irq irq_out);
qemu_irq *mpic_init (target_phys_addr_t base, int nb_cpus,
qemu_irq **irqs, qemu_irq irq_out);
#endif /* __OPENPIC_H__ */

13
hw/ppc_mac.h
View File

@ -112,17 +112,4 @@ void adb_mouse_init(ADBBusState *bus);
extern ADBBusState adb_bus;
/* openpic.c */
/* OpenPIC have 5 outputs per CPU connected and one IRQ out single output */
enum {
OPENPIC_OUTPUT_INT = 0, /* IRQ */
OPENPIC_OUTPUT_CINT, /* critical IRQ */
OPENPIC_OUTPUT_MCK, /* Machine check event */
OPENPIC_OUTPUT_DEBUG, /* Inconditional debug event */
OPENPIC_OUTPUT_RESET, /* Core reset event */
OPENPIC_OUTPUT_NB,
};
qemu_irq *openpic_init (PCIBus *bus, int *pmem_index, int nb_cpus,
qemu_irq **irqs, qemu_irq irq_out);
#endif /* !defined(__PPC_MAC_H__) */

1
hw/ppc_newworld.c
View File

@ -34,6 +34,7 @@
#include "boards.h"
#include "fw_cfg.h"
#include "escc.h"
#include "openpic.h"
#define MAX_IDE_BUS 2
#define VGA_BIOS_SIZE 65536