[mirror_qemu.git] / hw / ppc / ppc4xx_pci.c

/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License, version 2, as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 *
 * Copyright IBM Corp. 2008
 *
 * Authors: Hollis Blanchard <hollisb@us.ibm.com>
 */

/* This file implements emulation of the 32-bit PCI controller found in some
 * 4xx SoCs, such as the 440EP. */

#include "qemu/osdep.h"
#include "hw/hw.h"
#include "hw/ppc/ppc.h"
#include "hw/ppc/ppc4xx.h"
#include "qemu/module.h"
#include "hw/pci/pci.h"
#include "hw/pci/pci_host.h"
#include "exec/address-spaces.h"
#include "trace.h"

struct PCIMasterMap {
    uint32_t la;
    uint32_t ma;
    uint32_t pcila;
    uint32_t pciha;
};

struct PCITargetMap {
    uint32_t ms;
    uint32_t la;
};

#define PPC4xx_PCI_HOST_BRIDGE(obj) \
    OBJECT_CHECK(PPC4xxPCIState, (obj), TYPE_PPC4xx_PCI_HOST_BRIDGE)

#define PPC4xx_PCI_NR_PMMS 3
#define PPC4xx_PCI_NR_PTMS 2

struct PPC4xxPCIState {
    PCIHostState parent_obj;

    struct PCIMasterMap pmm[PPC4xx_PCI_NR_PMMS];
    struct PCITargetMap ptm[PPC4xx_PCI_NR_PTMS];
    qemu_irq irq[4];

    MemoryRegion container;
    MemoryRegion iomem;
};
typedef struct PPC4xxPCIState PPC4xxPCIState;

#define PCIC0_CFGADDR       0x0
#define PCIC0_CFGDATA       0x4

/* PLB Memory Map (PMM) registers specify which PLB addresses are translated to
 * PCI accesses. */
#define PCIL0_PMM0LA        0x0
#define PCIL0_PMM0MA        0x4
#define PCIL0_PMM0PCILA     0x8
#define PCIL0_PMM0PCIHA     0xc
#define PCIL0_PMM1LA        0x10
#define PCIL0_PMM1MA        0x14
#define PCIL0_PMM1PCILA     0x18
#define PCIL0_PMM1PCIHA     0x1c
#define PCIL0_PMM2LA        0x20
#define PCIL0_PMM2MA        0x24
#define PCIL0_PMM2PCILA     0x28
#define PCIL0_PMM2PCIHA     0x2c

/* PCI Target Map (PTM) registers specify which PCI addresses are translated to
 * PLB accesses. */
#define PCIL0_PTM1MS        0x30
#define PCIL0_PTM1LA        0x34
#define PCIL0_PTM2MS        0x38
#define PCIL0_PTM2LA        0x3c
#define PCI_REG_BASE        0x800000
#define PCI_REG_SIZE        0x40

#define PCI_ALL_SIZE        (PCI_REG_BASE + PCI_REG_SIZE)

static void ppc4xx_pci_reg_write4(void *opaque, hwaddr offset,
                                  uint64_t value, unsigned size)
{
    struct PPC4xxPCIState *pci = opaque;

    /* We ignore all target attempts at PCI configuration, effectively
     * assuming a bidirectional 1:1 mapping of PLB and PCI space. */

    switch (offset) {
    case PCIL0_PMM0LA:
        pci->pmm[0].la = value;
        break;
    case PCIL0_PMM0MA:
        pci->pmm[0].ma = value;
        break;
    case PCIL0_PMM0PCIHA:
        pci->pmm[0].pciha = value;
        break;
    case PCIL0_PMM0PCILA:
        pci->pmm[0].pcila = value;
        break;

    case PCIL0_PMM1LA:
        pci->pmm[1].la = value;
        break;
    case PCIL0_PMM1MA:
        pci->pmm[1].ma = value;
        break;
    case PCIL0_PMM1PCIHA:
        pci->pmm[1].pciha = value;
        break;
    case PCIL0_PMM1PCILA:
        pci->pmm[1].pcila = value;
        break;

    case PCIL0_PMM2LA:
        pci->pmm[2].la = value;
        break;
    case PCIL0_PMM2MA:
        pci->pmm[2].ma = value;
        break;
    case PCIL0_PMM2PCIHA:
        pci->pmm[2].pciha = value;
        break;
    case PCIL0_PMM2PCILA:
        pci->pmm[2].pcila = value;
        break;

    case PCIL0_PTM1MS:
        pci->ptm[0].ms = value;
        break;
    case PCIL0_PTM1LA:
        pci->ptm[0].la = value;
        break;
    case PCIL0_PTM2MS:
        pci->ptm[1].ms = value;
        break;
    case PCIL0_PTM2LA:
        pci->ptm[1].la = value;
        break;

    default:
        printf("%s: unhandled PCI internal register 0x%lx\n", __func__,
               (unsigned long)offset);
        break;
    }
}

static uint64_t ppc4xx_pci_reg_read4(void *opaque, hwaddr offset,
                                     unsigned size)
{
    struct PPC4xxPCIState *pci = opaque;
    uint32_t value;

    switch (offset) {
    case PCIL0_PMM0LA:
        value = pci->pmm[0].la;
        break;
    case PCIL0_PMM0MA:
        value = pci->pmm[0].ma;
        break;
    case PCIL0_PMM0PCIHA:
        value = pci->pmm[0].pciha;
        break;
    case PCIL0_PMM0PCILA:
        value = pci->pmm[0].pcila;
        break;

    case PCIL0_PMM1LA:
        value = pci->pmm[1].la;
        break;
    case PCIL0_PMM1MA:
        value = pci->pmm[1].ma;
        break;
    case PCIL0_PMM1PCIHA:
        value = pci->pmm[1].pciha;
        break;
    case PCIL0_PMM1PCILA:
        value = pci->pmm[1].pcila;
        break;

    case PCIL0_PMM2LA:
        value = pci->pmm[2].la;
        break;
    case PCIL0_PMM2MA:
        value = pci->pmm[2].ma;
        break;
    case PCIL0_PMM2PCIHA:
        value = pci->pmm[2].pciha;
        break;
    case PCIL0_PMM2PCILA:
        value = pci->pmm[2].pcila;
        break;

    case PCIL0_PTM1MS:
        value = pci->ptm[0].ms;
        break;
    case PCIL0_PTM1LA:
        value = pci->ptm[0].la;
        break;
    case PCIL0_PTM2MS:
        value = pci->ptm[1].ms;
        break;
    case PCIL0_PTM2LA:
        value = pci->ptm[1].la;
        break;

    default:
        printf("%s: invalid PCI internal register 0x%lx\n", __func__,
               (unsigned long)offset);
        value = 0;
    }

    return value;
}

static const MemoryRegionOps pci_reg_ops = {
    .read = ppc4xx_pci_reg_read4,
    .write = ppc4xx_pci_reg_write4,
    .endianness = DEVICE_LITTLE_ENDIAN,
};

static void ppc4xx_pci_reset(void *opaque)
{
    struct PPC4xxPCIState *pci = opaque;

    memset(pci->pmm, 0, sizeof(pci->pmm));
    memset(pci->ptm, 0, sizeof(pci->ptm));
}

/* On Bamboo, all pins from each slot are tied to a single board IRQ. This
 * may need further refactoring for other boards. */
static int ppc4xx_pci_map_irq(PCIDevice *pci_dev, int irq_num)
{
    int slot = pci_dev->devfn >> 3;

    trace_ppc4xx_pci_map_irq(pci_dev->devfn, irq_num, slot);

    return slot - 1;
}

static void ppc4xx_pci_set_irq(void *opaque, int irq_num, int level)
{
    qemu_irq *pci_irqs = opaque;

    trace_ppc4xx_pci_set_irq(irq_num);
    if (irq_num < 0) {
        fprintf(stderr, "%s: PCI irq %d\n", __func__, irq_num);
        return;
    }
    qemu_set_irq(pci_irqs[irq_num], level);
}

static const VMStateDescription vmstate_pci_master_map = {
    .name = "pci_master_map",
    .version_id = 0,
    .minimum_version_id = 0,
    .fields = (VMStateField[]) {
        VMSTATE_UINT32(la, struct PCIMasterMap),
        VMSTATE_UINT32(ma, struct PCIMasterMap),
        VMSTATE_UINT32(pcila, struct PCIMasterMap),
        VMSTATE_UINT32(pciha, struct PCIMasterMap),
        VMSTATE_END_OF_LIST()
    }
};

static const VMStateDescription vmstate_pci_target_map = {
    .name = "pci_target_map",
    .version_id = 0,
    .minimum_version_id = 0,
    .fields = (VMStateField[]) {
        VMSTATE_UINT32(ms, struct PCITargetMap),
        VMSTATE_UINT32(la, struct PCITargetMap),
        VMSTATE_END_OF_LIST()
    }
};

static const VMStateDescription vmstate_ppc4xx_pci = {
    .name = "ppc4xx_pci",
    .version_id = 1,
    .minimum_version_id = 1,
    .fields = (VMStateField[]) {
        VMSTATE_STRUCT_ARRAY(pmm, PPC4xxPCIState, PPC4xx_PCI_NR_PMMS, 1,
                             vmstate_pci_master_map,
                             struct PCIMasterMap),
        VMSTATE_STRUCT_ARRAY(ptm, PPC4xxPCIState, PPC4xx_PCI_NR_PTMS, 1,
                             vmstate_pci_target_map,
                             struct PCITargetMap),
        VMSTATE_END_OF_LIST()
    }
};

/* XXX Interrupt acknowledge cycles not supported. */
static void ppc4xx_pcihost_realize(DeviceState *dev, Error **errp)
{
    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
    PPC4xxPCIState *s;
    PCIHostState *h;
    PCIBus *b;
    int i;

    h = PCI_HOST_BRIDGE(dev);
    s = PPC4xx_PCI_HOST_BRIDGE(dev);

    for (i = 0; i < ARRAY_SIZE(s->irq); i++) {
        sysbus_init_irq(sbd, &s->irq[i]);
    }

    b = pci_register_root_bus(dev, NULL, ppc4xx_pci_set_irq,
                              ppc4xx_pci_map_irq, s->irq, get_system_memory(),
                              get_system_io(), 0, 4, TYPE_PCI_BUS);
    h->bus = b;

    pci_create_simple(b, 0, "ppc4xx-host-bridge");

    /* XXX split into 2 memory regions, one for config space, one for regs */
    memory_region_init(&s->container, OBJECT(s), "pci-container", PCI_ALL_SIZE);
    memory_region_init_io(&h->conf_mem, OBJECT(s), &pci_host_conf_le_ops, h,
                          "pci-conf-idx", 4);
    memory_region_init_io(&h->data_mem, OBJECT(s), &pci_host_data_le_ops, h,
                          "pci-conf-data", 4);
    memory_region_init_io(&s->iomem, OBJECT(s), &pci_reg_ops, s,
                          "pci.reg", PCI_REG_SIZE);
    memory_region_add_subregion(&s->container, PCIC0_CFGADDR, &h->conf_mem);
    memory_region_add_subregion(&s->container, PCIC0_CFGDATA, &h->data_mem);
    memory_region_add_subregion(&s->container, PCI_REG_BASE, &s->iomem);
    sysbus_init_mmio(sbd, &s->container);
    qemu_register_reset(ppc4xx_pci_reset, s);
}

static void ppc4xx_host_bridge_class_init(ObjectClass *klass, void *data)
{
    PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
    DeviceClass *dc = DEVICE_CLASS(klass);

    dc->desc        = "Host bridge";
    k->vendor_id    = PCI_VENDOR_ID_IBM;
    k->device_id    = PCI_DEVICE_ID_IBM_440GX;
    k->class_id     = PCI_CLASS_BRIDGE_OTHER;
    /*
     * PCI-facing part of the host bridge, not usable without the
     * host-facing part, which can't be device_add'ed, yet.
     */
    dc->user_creatable = false;
}

static const TypeInfo ppc4xx_host_bridge_info = {
    .name          = "ppc4xx-host-bridge",
    .parent        = TYPE_PCI_DEVICE,
    .instance_size = sizeof(PCIDevice),
    .class_init    = ppc4xx_host_bridge_class_init,
    .interfaces = (InterfaceInfo[]) {
        { INTERFACE_CONVENTIONAL_PCI_DEVICE },
        { },
    },
};

static void ppc4xx_pcihost_class_init(ObjectClass *klass, void *data)
{
    DeviceClass *dc = DEVICE_CLASS(klass);

    dc->realize = ppc4xx_pcihost_realize;
    dc->vmsd = &vmstate_ppc4xx_pci;
}

static const TypeInfo ppc4xx_pcihost_info = {
    .name          = TYPE_PPC4xx_PCI_HOST_BRIDGE,
    .parent        = TYPE_PCI_HOST_BRIDGE,
    .instance_size = sizeof(PPC4xxPCIState),
    .class_init    = ppc4xx_pcihost_class_init,
};

static void ppc4xx_pci_register_types(void)
{
    type_register_static(&ppc4xx_pcihost_info);
    type_register_static(&ppc4xx_host_bridge_info);
}

type_init(ppc4xx_pci_register_types)
Commit	Line	Data
825bb581 AJ	1	/*
	2	* This program is free software; you can redistribute it and/or modify
	3	* it under the terms of the GNU General Public License, version 2, as
	4	* published by the Free Software Foundation.
	5	*
	6	* This program is distributed in the hope that it will be useful,
	7	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	8	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	9	* GNU General Public License for more details.
	10	*
	11	* You should have received a copy of the GNU General Public License
8167ee88	12	* along with this program; if not, see <http://www.gnu.org/licenses/>.
825bb581 AJ	13	*
	14	* Copyright IBM Corp. 2008
	15	*
	16	* Authors: Hollis Blanchard <hollisb@us.ibm.com>
	17	*/
	18
	19	/* This file implements emulation of the 32-bit PCI controller found in some
	20	* 4xx SoCs, such as the 440EP. */
	21
0d75590d	22	#include "qemu/osdep.h"
83c9f4ca	23	#include "hw/hw.h"
0d09e41a PB	24	#include "hw/ppc/ppc.h"
0d09e41a PB	25	#include "hw/ppc/ppc4xx.h"
0b8fa32f	26	#include "qemu/module.h"
83c9f4ca PB	27	#include "hw/pci/pci.h"
83c9f4ca PB	28	#include "hw/pci/pci_host.h"
022c62cb	29	#include "exec/address-spaces.h"
f4af7d44	30	#include "trace.h"
825bb581 AJ	31
	32	struct PCIMasterMap {
	33	uint32_t la;
	34	uint32_t ma;
	35	uint32_t pcila;
	36	uint32_t pciha;
	37	};
	38
	39	struct PCITargetMap {
	40	uint32_t ms;
	41	uint32_t la;
	42	};
	43
42c281a2 AF	44	#define PPC4xx_PCI_HOST_BRIDGE(obj) \
	45	OBJECT_CHECK(PPC4xxPCIState, (obj), TYPE_PPC4xx_PCI_HOST_BRIDGE)
	46
825bb581 AJ	47	#define PPC4xx_PCI_NR_PMMS 3
	48	#define PPC4xx_PCI_NR_PTMS 2
	49
	50	struct PPC4xxPCIState {
67c332fd	51	PCIHostState parent_obj;
623f7c21	52
825bb581 AJ	53	struct PCIMasterMap pmm[PPC4xx_PCI_NR_PMMS];
825bb581 AJ	54	struct PCITargetMap ptm[PPC4xx_PCI_NR_PTMS];
623f7c21	55	qemu_irq irq[4];
825bb581	56
623f7c21 AG	57	MemoryRegion container;
623f7c21 AG	58	MemoryRegion iomem;
825bb581 AJ	59	};
	60	typedef struct PPC4xxPCIState PPC4xxPCIState;
	61
	62	#define PCIC0_CFGADDR 0x0
	63	#define PCIC0_CFGDATA 0x4
	64
	65	/* PLB Memory Map (PMM) registers specify which PLB addresses are translated to
	66	* PCI accesses. */
	67	#define PCIL0_PMM0LA 0x0
	68	#define PCIL0_PMM0MA 0x4
	69	#define PCIL0_PMM0PCILA 0x8
	70	#define PCIL0_PMM0PCIHA 0xc
	71	#define PCIL0_PMM1LA 0x10
	72	#define PCIL0_PMM1MA 0x14
	73	#define PCIL0_PMM1PCILA 0x18
	74	#define PCIL0_PMM1PCIHA 0x1c
	75	#define PCIL0_PMM2LA 0x20
	76	#define PCIL0_PMM2MA 0x24
	77	#define PCIL0_PMM2PCILA 0x28
	78	#define PCIL0_PMM2PCIHA 0x2c
	79
	80	/* PCI Target Map (PTM) registers specify which PCI addresses are translated to
	81	* PLB accesses. */
	82	#define PCIL0_PTM1MS 0x30
	83	#define PCIL0_PTM1LA 0x34
	84	#define PCIL0_PTM2MS 0x38
	85	#define PCIL0_PTM2LA 0x3c
623f7c21	86	#define PCI_REG_BASE 0x800000
825bb581 AJ	87	#define PCI_REG_SIZE 0x40
825bb581 AJ	88
623f7c21	89	#define PCI_ALL_SIZE (PCI_REG_BASE + PCI_REG_SIZE)
825bb581	90
a8170e5e	91	static void ppc4xx_pci_reg_write4(void *opaque, hwaddr offset,
da726e5e	92	uint64_t value, unsigned size)
825bb581 AJ	93	{
	94	struct PPC4xxPCIState *pci = opaque;
	95
825bb581 AJ	96	/* We ignore all target attempts at PCI configuration, effectively
	97	* assuming a bidirectional 1:1 mapping of PLB and PCI space. */
	98
	99	switch (offset) {
	100	case PCIL0_PMM0LA:
	101	pci->pmm[0].la = value;
	102	break;
	103	case PCIL0_PMM0MA:
	104	pci->pmm[0].ma = value;
	105	break;
	106	case PCIL0_PMM0PCIHA:
	107	pci->pmm[0].pciha = value;
	108	break;
	109	case PCIL0_PMM0PCILA:
	110	pci->pmm[0].pcila = value;
	111	break;
	112
	113	case PCIL0_PMM1LA:
	114	pci->pmm[1].la = value;
	115	break;
	116	case PCIL0_PMM1MA:
	117	pci->pmm[1].ma = value;
	118	break;
	119	case PCIL0_PMM1PCIHA:
	120	pci->pmm[1].pciha = value;
	121	break;
	122	case PCIL0_PMM1PCILA:
	123	pci->pmm[1].pcila = value;
	124	break;
	125
	126	case PCIL0_PMM2LA:
	127	pci->pmm[2].la = value;
	128	break;
	129	case PCIL0_PMM2MA:
	130	pci->pmm[2].ma = value;
	131	break;
	132	case PCIL0_PMM2PCIHA:
	133	pci->pmm[2].pciha = value;
	134	break;
	135	case PCIL0_PMM2PCILA:
	136	pci->pmm[2].pcila = value;
	137	break;
	138
	139	case PCIL0_PTM1MS:
	140	pci->ptm[0].ms = value;
	141	break;
	142	case PCIL0_PTM1LA:
	143	pci->ptm[0].la = value;
	144	break;
	145	case PCIL0_PTM2MS:
	146	pci->ptm[1].ms = value;
	147	break;
	148	case PCIL0_PTM2LA:
	149	pci->ptm[1].la = value;
	150	break;
	151
	152	default:
	153	printf("%s: unhandled PCI internal register 0x%lx\n", __func__,
	154	(unsigned long)offset);
	155	break;
	156	}
	157	}
	158
a8170e5e	159	static uint64_t ppc4xx_pci_reg_read4(void *opaque, hwaddr offset,
da726e5e	160	unsigned size)
825bb581 AJ	161	{
	162	struct PPC4xxPCIState *pci = opaque;
	163	uint32_t value;
	164
	165	switch (offset) {
	166	case PCIL0_PMM0LA:
	167	value = pci->pmm[0].la;
	168	break;
	169	case PCIL0_PMM0MA:
	170	value = pci->pmm[0].ma;
	171	break;
	172	case PCIL0_PMM0PCIHA:
	173	value = pci->pmm[0].pciha;
	174	break;
	175	case PCIL0_PMM0PCILA:
	176	value = pci->pmm[0].pcila;
	177	break;
	178
	179	case PCIL0_PMM1LA:
	180	value = pci->pmm[1].la;
	181	break;
	182	case PCIL0_PMM1MA:
	183	value = pci->pmm[1].ma;
	184	break;
	185	case PCIL0_PMM1PCIHA:
	186	value = pci->pmm[1].pciha;
	187	break;
	188	case PCIL0_PMM1PCILA:
	189	value = pci->pmm[1].pcila;
	190	break;
	191
	192	case PCIL0_PMM2LA:
	193	value = pci->pmm[2].la;
	194	break;
	195	case PCIL0_PMM2MA:
	196	value = pci->pmm[2].ma;
	197	break;
	198	case PCIL0_PMM2PCIHA:
	199	value = pci->pmm[2].pciha;
	200	break;
	201	case PCIL0_PMM2PCILA:
	202	value = pci->pmm[2].pcila;
	203	break;
	204
	205	case PCIL0_PTM1MS:
	206	value = pci->ptm[0].ms;
	207	break;
	208	case PCIL0_PTM1LA:
	209	value = pci->ptm[0].la;
	210	break;
	211	case PCIL0_PTM2MS:
	212	value = pci->ptm[1].ms;
	213	break;
	214	case PCIL0_PTM2LA:
	215	value = pci->ptm[1].la;
	216	break;
	217
	218	default:
	219	printf("%s: invalid PCI internal register 0x%lx\n", __func__,
	220	(unsigned long)offset);
	221	value = 0;
	222	}
	223
825bb581 AJ	224	return value;
	225	}
	226
da726e5e AK	227	static const MemoryRegionOps pci_reg_ops = {
	228	.read = ppc4xx_pci_reg_read4,
	229	.write = ppc4xx_pci_reg_write4,
	230	.endianness = DEVICE_LITTLE_ENDIAN,
825bb581 AJ	231	};
	232
	233	static void ppc4xx_pci_reset(void *opaque)
	234	{
	235	struct PPC4xxPCIState *pci = opaque;
	236
	237	memset(pci->pmm, 0, sizeof(pci->pmm));
	238	memset(pci->ptm, 0, sizeof(pci->ptm));
	239	}
	240
	241	/* On Bamboo, all pins from each slot are tied to a single board IRQ. This
	242	* may need further refactoring for other boards. */
	243	static int ppc4xx_pci_map_irq(PCIDevice *pci_dev, int irq_num)
	244	{
	245	int slot = pci_dev->devfn >> 3;
	246
f4af7d44	247	trace_ppc4xx_pci_map_irq(pci_dev->devfn, irq_num, slot);
825bb581 AJ	248
	249	return slot - 1;
	250	}
	251
5d4e84c8	252	static void ppc4xx_pci_set_irq(void *opaque, int irq_num, int level)
825bb581	253	{
5d4e84c8 JQ	254	qemu_irq *pci_irqs = opaque;
5d4e84c8 JQ	255
f4af7d44	256	trace_ppc4xx_pci_set_irq(irq_num);
d49bc1fb AG	257	if (irq_num < 0) {
	258	fprintf(stderr, "%s: PCI irq %d\n", __func__, irq_num);
	259	return;
	260	}
825bb581 AJ	261	qemu_set_irq(pci_irqs[irq_num], level);
	262	}
	263
b605f222 JQ	264	static const VMStateDescription vmstate_pci_master_map = {
	265	.name = "pci_master_map",
	266	.version_id = 0,
	267	.minimum_version_id = 0,
3aff6c2f	268	.fields = (VMStateField[]) {
b605f222 JQ	269	VMSTATE_UINT32(la, struct PCIMasterMap),
	270	VMSTATE_UINT32(ma, struct PCIMasterMap),
	271	VMSTATE_UINT32(pcila, struct PCIMasterMap),
	272	VMSTATE_UINT32(pciha, struct PCIMasterMap),
	273	VMSTATE_END_OF_LIST()
825bb581	274	}
b605f222	275	};
825bb581	276
b605f222 JQ	277	static const VMStateDescription vmstate_pci_target_map = {
	278	.name = "pci_target_map",
	279	.version_id = 0,
	280	.minimum_version_id = 0,
3aff6c2f	281	.fields = (VMStateField[]) {
b605f222 JQ	282	VMSTATE_UINT32(ms, struct PCITargetMap),
	283	VMSTATE_UINT32(la, struct PCITargetMap),
	284	VMSTATE_END_OF_LIST()
825bb581	285	}
b605f222	286	};
825bb581	287
b605f222 JQ	288	static const VMStateDescription vmstate_ppc4xx_pci = {
	289	.name = "ppc4xx_pci",
	290	.version_id = 1,
	291	.minimum_version_id = 1,
3aff6c2f	292	.fields = (VMStateField[]) {
b605f222 JQ	293	VMSTATE_STRUCT_ARRAY(pmm, PPC4xxPCIState, PPC4xx_PCI_NR_PMMS, 1,
	294	vmstate_pci_master_map,
	295	struct PCIMasterMap),
	296	VMSTATE_STRUCT_ARRAY(ptm, PPC4xxPCIState, PPC4xx_PCI_NR_PTMS, 1,
	297	vmstate_pci_target_map,
	298	struct PCITargetMap),
	299	VMSTATE_END_OF_LIST()
825bb581	300	}
b605f222	301	};
825bb581 AJ	302
825bb581 AJ	303	/* XXX Interrupt acknowledge cycles not supported. */
95ba5567	304	static void ppc4xx_pcihost_realize(DeviceState dev, Error *errp)
623f7c21	305	{
95ba5567	306	SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
623f7c21 AG	307	PPC4xxPCIState *s;
	308	PCIHostState *h;
	309	PCIBus *b;
	310	int i;
	311
8558d942	312	h = PCI_HOST_BRIDGE(dev);
42c281a2	313	s = PPC4xx_PCI_HOST_BRIDGE(dev);
623f7c21 AG	314
623f7c21 AG	315	for (i = 0; i < ARRAY_SIZE(s->irq); i++) {
95ba5567	316	sysbus_init_irq(sbd, &s->irq[i]);
623f7c21 AG	317	}
623f7c21 AG	318
95ba5567	319	b = pci_register_root_bus(dev, NULL, ppc4xx_pci_set_irq,
1115ff6d DG	320	ppc4xx_pci_map_irq, s->irq, get_system_memory(),
1115ff6d DG	321	get_system_io(), 0, 4, TYPE_PCI_BUS);
42c281a2	322	h->bus = b;
623f7c21 AG	323
	324	pci_create_simple(b, 0, "ppc4xx-host-bridge");
	325
	326	/* XXX split into 2 memory regions, one for config space, one for regs */
40c5dce9 PB	327	memory_region_init(&s->container, OBJECT(s), "pci-container", PCI_ALL_SIZE);
40c5dce9 PB	328	memory_region_init_io(&h->conf_mem, OBJECT(s), &pci_host_conf_le_ops, h,
623f7c21	329	"pci-conf-idx", 4);
40c5dce9	330	memory_region_init_io(&h->data_mem, OBJECT(s), &pci_host_data_le_ops, h,
623f7c21	331	"pci-conf-data", 4);
40c5dce9	332	memory_region_init_io(&s->iomem, OBJECT(s), &pci_reg_ops, s,
623f7c21 AG	333	"pci.reg", PCI_REG_SIZE);
	334	memory_region_add_subregion(&s->container, PCIC0_CFGADDR, &h->conf_mem);
	335	memory_region_add_subregion(&s->container, PCIC0_CFGDATA, &h->data_mem);
	336	memory_region_add_subregion(&s->container, PCI_REG_BASE, &s->iomem);
95ba5567	337	sysbus_init_mmio(sbd, &s->container);
623f7c21	338	qemu_register_reset(ppc4xx_pci_reset, s);
623f7c21 AG	339	}
623f7c21 AG	340
40021f08 AL	341	static void ppc4xx_host_bridge_class_init(ObjectClass klass, void data)
	342	{
	343	PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
39bffca2	344	DeviceClass *dc = DEVICE_CLASS(klass);
40021f08	345
39bffca2	346	dc->desc = "Host bridge";
40021f08 AL	347	k->vendor_id = PCI_VENDOR_ID_IBM;
	348	k->device_id = PCI_DEVICE_ID_IBM_440GX;
	349	k->class_id = PCI_CLASS_BRIDGE_OTHER;
08c58f92 MA	350	/*
	351	* PCI-facing part of the host bridge, not usable without the
	352	* host-facing part, which can't be device_add'ed, yet.
	353	*/
e90f2a8c	354	dc->user_creatable = false;
40021f08 AL	355	}
40021f08 AL	356
4240abff	357	static const TypeInfo ppc4xx_host_bridge_info = {
39bffca2 AL	358	.name = "ppc4xx-host-bridge",
	359	.parent = TYPE_PCI_DEVICE,
	360	.instance_size = sizeof(PCIDevice),
	361	.class_init = ppc4xx_host_bridge_class_init,
fd3b02c8 EH	362	.interfaces = (InterfaceInfo[]) {
	363	{ INTERFACE_CONVENTIONAL_PCI_DEVICE },
	364	{ },
	365	},
623f7c21 AG	366	};
623f7c21 AG	367
999e12bb AL	368	static void ppc4xx_pcihost_class_init(ObjectClass klass, void data)
999e12bb AL	369	{
39bffca2	370	DeviceClass *dc = DEVICE_CLASS(klass);
999e12bb	371
95ba5567	372	dc->realize = ppc4xx_pcihost_realize;
39bffca2	373	dc->vmsd = &vmstate_ppc4xx_pci;
999e12bb AL	374	}
999e12bb AL	375
4240abff	376	static const TypeInfo ppc4xx_pcihost_info = {
42c281a2	377	.name = TYPE_PPC4xx_PCI_HOST_BRIDGE,
8558d942	378	.parent = TYPE_PCI_HOST_BRIDGE,
39bffca2 AL	379	.instance_size = sizeof(PPC4xxPCIState),
39bffca2 AL	380	.class_init = ppc4xx_pcihost_class_init,
623f7c21 AG	381	};
623f7c21 AG	382
83f7d43a	383	static void ppc4xx_pci_register_types(void)
825bb581	384	{
39bffca2 AL	385	type_register_static(&ppc4xx_pcihost_info);
39bffca2 AL	386	type_register_static(&ppc4xx_host_bridge_info);
825bb581	387	}
83f7d43a AF	388
83f7d43a AF	389	type_init(ppc4xx_pci_register_types)