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openpic: convert to qdev 

This patch converts the OpenPIC device to qdev. Along the way it
renames the "openpic" target to "raven" and the "mpic" target to
"fsl_mpic_20", to better reflect the actual models they implement.

This way we have a generic OpenPIC device now that can handle
different flavors of the OpenPIC specification.

Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexander Graf 2012-12-08 05:17:14 +01:00
parent 5bac070111
commit d0b7263134
4 changed files with 185 additions and 160 deletions
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288
hw/openpic.c
View File

@ -37,6 +37,7 @@
#include "ppc_mac.h"
#include "pci.h"
#include "openpic.h"
#include "sysbus.h"
//#define DEBUG_OPENPIC
@ -54,30 +55,10 @@
#define MAX_IRQ (MAX_SRC + MAX_IPI + MAX_TMR)
#define VID 0x03 /* MPIC version ID */
enum {
IRQ_IPVP = 0,
IRQ_IDE,
};
/* 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
/* OpenPIC capability flags */
#define OPENPIC_FLAG_IDE_CRIT (1 << 0)
/* OpenPIC address map */
#define OPENPIC_GLB_REG_START 0x0
#define OPENPIC_GLB_REG_SIZE 0x10F0
#define OPENPIC_TMR_REG_START 0x10F0
@ -87,31 +68,37 @@ enum {
#define OPENPIC_CPU_REG_START 0x20000
#define OPENPIC_CPU_REG_SIZE 0x100 + ((MAX_CPU - 1) * 0x1000)
/* MPIC */
#define MPIC_MAX_CPU 1
#define MPIC_MAX_EXT 12
#define MPIC_MAX_INT 64
#define MPIC_MAX_IRQ MAX_IRQ
/* Raven */
#define RAVEN_MAX_CPU 2
#define RAVEN_MAX_EXT 48
#define RAVEN_MAX_IRQ 64
#define RAVEN_MAX_TMR MAX_TMR
#define RAVEN_MAX_IPI MAX_IPI
/* Interrupt definitions */
#define RAVEN_FE_IRQ (RAVEN_MAX_EXT) /* Internal functional IRQ */
#define RAVEN_ERR_IRQ (RAVEN_MAX_EXT + 1) /* Error IRQ */
#define RAVEN_TMR_IRQ (RAVEN_MAX_EXT + 2) /* First timer IRQ */
#define RAVEN_IPI_IRQ (RAVEN_TMR_IRQ + RAVEN_MAX_TMR) /* First IPI IRQ */
/* First doorbell IRQ */
#define RAVEN_DBL_IRQ (RAVEN_IPI_IRQ + (RAVEN_MAX_CPU * RAVEN_MAX_IPI))
/* FSL_MPIC_20 */
#define FSL_MPIC_20_MAX_CPU 1
#define FSL_MPIC_20_MAX_EXT 12
#define FSL_MPIC_20_MAX_INT 64
#define FSL_MPIC_20_MAX_IRQ MAX_IRQ
/* Interrupt definitions */
/* IRQs, accessible through the IRQ region */
#define MPIC_EXT_IRQ 0x00
#define MPIC_INT_IRQ 0x10
#define MPIC_MSG_IRQ 0xb0
#define MPIC_MSI_IRQ 0xe0
#define FSL_MPIC_20_EXT_IRQ 0x00
#define FSL_MPIC_20_INT_IRQ 0x10
#define FSL_MPIC_20_MSG_IRQ 0xb0
#define FSL_MPIC_20_MSI_IRQ 0xe0
/* These are available through separate regions, but
for simplicity's sake mapped into the same number space */
#define MPIC_TMR_IRQ 0x100
#define MPIC_IPI_IRQ 0x104
#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_SRC_REG_START 0x10000
#define MPIC_SRC_REG_SIZE (MAX_SRC * 0x20)
#define MPIC_CPU_REG_START 0x20000
#define MPIC_CPU_REG_SIZE 0x100 + ((MAX_CPU - 1) * 0x1000)
#define FSL_MPIC_20_TMR_IRQ 0x100
#define FSL_MPIC_20_IPI_IRQ 0x104
/*
* Block Revision Register1 (BRR1): QEMU does not fully emulate
@ -129,6 +116,7 @@ enum {
#define FREP_VID_SHIFT 0
#define VID_REVISION_1_2 2
#define VID_REVISION_1_3 3
#define VENI_GENERIC 0x00000000 /* Generic Vendor ID */
@ -205,10 +193,11 @@ typedef struct IRQ_dst_t {
} IRQ_dst_t;
typedef struct OpenPICState {
PCIDevice pci_dev;
SysBusDevice busdev;
MemoryRegion mem;
/* Behavior control */
uint32_t model;
uint32_t flags;
uint32_t nb_irqs;
uint32_t vid;
@ -231,15 +220,15 @@ typedef struct OpenPICState {
IRQ_src_t src[MAX_IRQ];
/* Local registers per output pin */
IRQ_dst_t dst[MAX_CPU];
int nb_cpus;
uint32_t nb_cpus;
/* Timer registers */
struct {
uint32_t ticc; /* Global timer current count register */
uint32_t tibc; /* Global timer base count register */
} timers[MAX_TMR];
int max_irq;
int irq_ipi0;
int irq_tim0;
uint32_t max_irq;
uint32_t irq_ipi0;
uint32_t irq_tim0;
} OpenPICState;
static void openpic_irq_raise(OpenPICState *opp, int n_CPU, IRQ_src_t *src);
@ -411,9 +400,9 @@ static void openpic_set_irq(void *opaque, int n_IRQ, int level)
openpic_update_irq(opp, n_IRQ);
}
static void openpic_reset (void *opaque)
static void openpic_reset(DeviceState *d)
{
OpenPICState *opp = (OpenPICState *)opaque;
OpenPICState *opp = FROM_SYSBUS(typeof (*opp), sysbus_from_qdev(d));
int i;
opp->glbc = 0x80000000;
@ -506,7 +495,7 @@ static void openpic_gbl_write(void *opaque, hwaddr addr, uint64_t val,
break;
case 0x1020: /* GLBC */
if (val & 0x80000000) {
openpic_reset(opp);
openpic_reset(&opp->busdev.qdev);
}
break;
case 0x1080: /* VENI */
@ -971,7 +960,7 @@ static void openpic_save(QEMUFile* f, void *opaque)
qemu_put_sbe32s(f, &opp->src[i].pending);
}
qemu_put_sbe32s(f, &opp->nb_cpus);
qemu_put_be32s(f, &opp->nb_cpus);
for (i = 0; i < opp->nb_cpus; i++) {
qemu_put_be32s(f, &opp->dst[i].pctp);
@ -984,8 +973,6 @@ static void openpic_save(QEMUFile* f, void *opaque)
qemu_put_be32s(f, &opp->timers[i].ticc);
qemu_put_be32s(f, &opp->timers[i].tibc);
}
pci_device_save(&opp->pci_dev, f);
}
static void openpic_load_IRQ_queue(QEMUFile* f, IRQ_queue_t *q)
@ -1020,7 +1007,7 @@ static int openpic_load(QEMUFile* f, void *opaque, int version_id)
qemu_get_sbe32s(f, &opp->src[i].pending);
}
qemu_get_sbe32s(f, &opp->nb_cpus);
qemu_get_be32s(f, &opp->nb_cpus);
for (i = 0; i < opp->nb_cpus; i++) {
qemu_get_be32s(f, &opp->dst[i].pctp);
@ -1034,7 +1021,7 @@ static int openpic_load(QEMUFile* f, void *opaque, int version_id)
qemu_get_be32s(f, &opp->timers[i].tibc);
}
return pci_device_load(&opp->pci_dev, f);
return 0;
}
static void openpic_irq_raise(OpenPICState *opp, int n_CPU, IRQ_src_t *src)
@ -1048,17 +1035,18 @@ static void openpic_irq_raise(OpenPICState *opp, int n_CPU, IRQ_src_t *src)
}
}
qemu_irq *openpic_init (MemoryRegion **pmem, int nb_cpus,
qemu_irq **irqs)
struct memreg {
const char *name;
MemoryRegionOps const *ops;
hwaddr start_addr;
ram_addr_t size;
};
static int openpic_init(SysBusDevice *dev)
{
OpenPICState *opp;
int i;
struct {
const char *name;
MemoryRegionOps const *ops;
hwaddr start_addr;
ram_addr_t size;
} const list[] = {
OpenPICState *opp = FROM_SYSBUS(typeof (*opp), dev);
int i, j;
const struct memreg list_le[] = {
{"glb", &openpic_glb_ops_le, OPENPIC_GLB_REG_START,
OPENPIC_GLB_REG_SIZE},
{"tmr", &openpic_tmr_ops_le, OPENPIC_TMR_REG_START,
@ -1068,16 +1056,57 @@ qemu_irq *openpic_init (MemoryRegion **pmem, int nb_cpus,
{"cpu", &openpic_cpu_ops_le, OPENPIC_CPU_REG_START,
OPENPIC_CPU_REG_SIZE},
};
const struct memreg list_be[] = {
{"glb", &openpic_glb_ops_be, OPENPIC_GLB_REG_START,
OPENPIC_GLB_REG_SIZE},
{"tmr", &openpic_tmr_ops_be, OPENPIC_TMR_REG_START,
OPENPIC_TMR_REG_SIZE},
{"src", &openpic_src_ops_be, OPENPIC_SRC_REG_START,
OPENPIC_SRC_REG_SIZE},
{"cpu", &openpic_cpu_ops_be, OPENPIC_CPU_REG_START,
OPENPIC_CPU_REG_SIZE},
};
struct memreg const *list;
/* XXX: for now, only one CPU is supported */
if (nb_cpus != 1)
return NULL;
opp = g_malloc0(sizeof(OpenPICState));
switch (opp->model) {
case OPENPIC_MODEL_FSL_MPIC_20:
default:
opp->flags |= OPENPIC_FLAG_IDE_CRIT;
opp->nb_irqs = 80;
opp->vid = VID_REVISION_1_2;
opp->veni = VENI_GENERIC;
opp->spve_mask = 0xFFFF;
opp->tifr_reset = 0x00000000;
opp->ipvp_reset = 0x80000000;
opp->ide_reset = 0x00000001;
opp->max_irq = FSL_MPIC_20_MAX_IRQ;
opp->irq_ipi0 = FSL_MPIC_20_IPI_IRQ;
opp->irq_tim0 = FSL_MPIC_20_TMR_IRQ;
list = list_be;
break;
case OPENPIC_MODEL_RAVEN:
opp->nb_irqs = RAVEN_MAX_EXT;
opp->vid = VID_REVISION_1_3;
opp->veni = VENI_GENERIC;
opp->spve_mask = 0xFF;
opp->tifr_reset = 0x003F7A00;
opp->ipvp_reset = 0xA0000000;
opp->ide_reset = 0x00000000;
opp->max_irq = RAVEN_MAX_IRQ;
opp->irq_ipi0 = RAVEN_IPI_IRQ;
opp->irq_tim0 = RAVEN_TMR_IRQ;
list = list_le;
/* Only UP supported today */
if (opp->nb_cpus != 1) {
return -EINVAL;
}
break;
}
memory_region_init(&opp->mem, "openpic", 0x40000);
for (i = 0; i < ARRAY_SIZE(list); i++) {
for (i = 0; i < ARRAY_SIZE(list_le); i++) {
memory_region_init_io(&opp->sub_io_mem[i], list[i].ops, opp,
list[i].name, list[i].size);
@ -1085,83 +1114,48 @@ qemu_irq *openpic_init (MemoryRegion **pmem, int nb_cpus,
&opp->sub_io_mem[i]);
}
// isu_base &= 0xFFFC0000;
opp->nb_cpus = nb_cpus;
opp->nb_irqs = OPENPIC_EXT_IRQ;
opp->vid = VID;
opp->veni = VENI_GENERIC;
opp->spve_mask = 0xFF;
opp->tifr_reset = 0x003F7A00;
opp->max_irq = OPENPIC_MAX_IRQ;
opp->irq_ipi0 = OPENPIC_IRQ_IPI0;
opp->irq_tim0 = OPENPIC_IRQ_TIM0;
for (i = 0; i < nb_cpus; i++)
opp->dst[i].irqs = irqs[i];
register_savevm(&opp->pci_dev.qdev, "openpic", 0, 2,
openpic_save, openpic_load, opp);
qemu_register_reset(openpic_reset, opp);
if (pmem)
*pmem = &opp->mem;
return qemu_allocate_irqs(openpic_set_irq, opp, opp->max_irq);
}
qemu_irq *mpic_init (MemoryRegion *address_space, hwaddr base,
int nb_cpus, qemu_irq **irqs)
{
OpenPICState *mpp;
int i;
struct {
const char *name;
MemoryRegionOps const *ops;
hwaddr start_addr;
ram_addr_t size;
} const list[] = {
{"glb", &openpic_glb_ops_be, MPIC_GLB_REG_START, MPIC_GLB_REG_SIZE},
{"tmr", &openpic_tmr_ops_be, MPIC_TMR_REG_START, MPIC_TMR_REG_SIZE},
{"src", &openpic_src_ops_be, MPIC_SRC_REG_START, MPIC_SRC_REG_SIZE},
{"cpu", &openpic_cpu_ops_be, MPIC_CPU_REG_START, MPIC_CPU_REG_SIZE},
};
mpp = g_malloc0(sizeof(OpenPICState));
memory_region_init(&mpp->mem, "mpic", 0x40000);
memory_region_add_subregion(address_space, base, &mpp->mem);
for (i = 0; i < sizeof(list)/sizeof(list[0]); i++) {
memory_region_init_io(&mpp->sub_io_mem[i], list[i].ops, mpp,
list[i].name, list[i].size);
memory_region_add_subregion(&mpp->mem, list[i].start_addr,
&mpp->sub_io_mem[i]);
for (i = 0; i < opp->nb_cpus; i++) {
opp->dst[i].irqs = g_new(qemu_irq, OPENPIC_OUTPUT_NB);
for (j = 0; j < OPENPIC_OUTPUT_NB; j++) {
sysbus_init_irq(dev, &opp->dst[i].irqs[j]);
}
}
mpp->nb_cpus = nb_cpus;
/* 12 external sources, 48 internal sources , 4 timer sources,
4 IPI sources, 4 messaging sources, and 8 Shared MSI sources */
mpp->nb_irqs = 80;
mpp->vid = VID_REVISION_1_2;
mpp->veni = VENI_GENERIC;
mpp->spve_mask = 0xFFFF;
mpp->tifr_reset = 0x00000000;
mpp->ipvp_reset = 0x80000000;
mpp->ide_reset = 0x00000001;
mpp->max_irq = MPIC_MAX_IRQ;
mpp->irq_ipi0 = MPIC_IPI_IRQ;
mpp->irq_tim0 = MPIC_TMR_IRQ;
register_savevm(&opp->busdev.qdev, "openpic", 0, 2,
openpic_save, openpic_load, opp);
for (i = 0; i < nb_cpus; i++)
mpp->dst[i].irqs = irqs[i];
sysbus_init_mmio(dev, &opp->mem);
qdev_init_gpio_in(&dev->qdev, openpic_set_irq, opp->max_irq);
/* Enable critical interrupt support */
mpp->flags |= OPENPIC_FLAG_IDE_CRIT;
register_savevm(NULL, "mpic", 0, 2, openpic_save, openpic_load, mpp);
qemu_register_reset(openpic_reset, mpp);
return qemu_allocate_irqs(openpic_set_irq, mpp, mpp->max_irq);
return 0;
}
static Property openpic_properties[] = {
DEFINE_PROP_UINT32("model", OpenPICState, model, OPENPIC_MODEL_FSL_MPIC_20),
DEFINE_PROP_UINT32("nb_cpus", OpenPICState, nb_cpus, 1),
DEFINE_PROP_END_OF_LIST(),
};
static void openpic_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
k->init = openpic_init;
dc->props = openpic_properties;
dc->reset = openpic_reset;
}
static TypeInfo openpic_info = {
.name = "openpic",
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(OpenPICState),
.class_init = openpic_class_init,
};
static void openpic_register_types(void)
{
type_register_static(&openpic_info);
}
type_init(openpic_register_types)

8
hw/openpic.h
View File

@ -11,11 +11,7 @@ enum {
OPENPIC_OUTPUT_NB,
};
/* OpenPIC capability flags */
#define OPENPIC_FLAG_IDE_CRIT (1 << 0)
#define OPENPIC_MODEL_RAVEN 0
#define OPENPIC_MODEL_FSL_MPIC_20 1
qemu_irq *openpic_init (MemoryRegion **pmem, int nb_cpus,
qemu_irq **irqs);
qemu_irq *mpic_init (MemoryRegion *address_space, hwaddr base,
int nb_cpus, qemu_irq **irqs);
#endif /* __OPENPIC_H__ */

24
hw/ppc/e500.c
View File

@ -418,7 +418,7 @@ void ppce500_init(PPCE500Params *params)
target_ulong dt_base = 0;
target_ulong initrd_base = 0;
target_long initrd_size=0;
int i=0;
int i = 0, j, k;
unsigned int pci_irq_nrs[4] = {1, 2, 3, 4};
qemu_irq **irqs, *mpic;
DeviceState *dev;
@ -492,13 +492,27 @@ void ppce500_init(PPCE500Params *params)
ccsr_addr_space);
/* MPIC */
mpic = mpic_init(ccsr_addr_space, MPC8544_MPIC_REGS_OFFSET,
smp_cpus, irqs);
mpic = g_new(qemu_irq, 256);
dev = qdev_create(NULL, "openpic");
qdev_prop_set_uint32(dev, "nb_cpus", smp_cpus);
qdev_prop_set_uint32(dev, "model", OPENPIC_MODEL_FSL_MPIC_20);
qdev_init_nofail(dev);
s = sysbus_from_qdev(dev);
if (!mpic) {
cpu_abort(env, "MPIC failed to initialize\n");
k = 0;
for (i = 0; i < smp_cpus; i++) {
for (j = 0; j < OPENPIC_OUTPUT_NB; j++) {
sysbus_connect_irq(s, k++, irqs[i][j]);
}
}
for (i = 0; i < 256; i++) {
mpic[i] = qdev_get_gpio_in(dev, i);
}
memory_region_add_subregion(ccsr_addr_space, MPC8544_MPIC_REGS_OFFSET,
s->mmio[0].memory);
/* Serial */
if (serial_hds[0]) {
serial_mm_init(ccsr_addr_space, MPC8544_SERIAL0_REGS_OFFSET,

25
hw/ppc_newworld.c
View File

@ -67,6 +67,7 @@
#include "hw/usb.h"
#include "blockdev.h"
#include "exec-memory.h"
#include "sysbus.h"
#define MAX_IDE_BUS 2
#define CFG_ADDR 0xf0000510
@ -141,7 +142,7 @@ static void ppc_core99_init(QEMUMachineInitArgs *args)
char *filename;
qemu_irq *pic, **openpic_irqs;
MemoryRegion *unin_memory = g_new(MemoryRegion, 1);
int linux_boot, i;
int linux_boot, i, j, k;
MemoryRegion *ram = g_new(MemoryRegion, 1), *bios = g_new(MemoryRegion, 1);
hwaddr kernel_base, initrd_base, cmdline_base = 0;
long kernel_size, initrd_size;
@ -156,6 +157,8 @@ static void ppc_core99_init(QEMUMachineInitArgs *args)
void *fw_cfg;
void *dbdma;
int machine_arch;
SysBusDevice *s;
DeviceState *dev;
linux_boot = (kernel_filename != NULL);
@ -320,7 +323,25 @@ static void ppc_core99_init(QEMUMachineInitArgs *args)
exit(1);
}
}
pic = openpic_init(&pic_mem, smp_cpus, openpic_irqs);
pic = g_new(qemu_irq, 64);
dev = qdev_create(NULL, "openpic");
qdev_prop_set_uint32(dev, "model", OPENPIC_MODEL_RAVEN);
qdev_init_nofail(dev);
s = sysbus_from_qdev(dev);
pic_mem = s->mmio[0].memory;
k = 0;
for (i = 0; i < smp_cpus; i++) {
for (j = 0; j < OPENPIC_OUTPUT_NB; j++) {
sysbus_connect_irq(s, k++, openpic_irqs[i][j]);
}
}
for (i = 0; i < 64; i++) {
pic[i] = qdev_get_gpio_in(dev, i);
}
if (PPC_INPUT(env) == PPC_FLAGS_INPUT_970) {
/* 970 gets a U3 bus */
pci_bus = pci_pmac_u3_init(pic, get_system_memory(), get_system_io());