[qemu.git] / hw / 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, write to the Free Software
 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * Copyright IBM Corp. 2008
 *
 * Authors: Hollis Blanchard <[email protected]>
 */

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

#include "hw.h"
#include "ppc.h"
#include "ppc4xx.h"

typedef target_phys_addr_t pci_addr_t;
#include "pci.h"
#include "pci_host.h"
#include "bswap.h"

#undef DEBUG
#ifdef DEBUG
#define DPRINTF(fmt, ...) do { printf(fmt, ## __VA_ARGS__); } while (0)
#else
#define DPRINTF(fmt, ...)
#endif /* DEBUG */

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_NR_PMMS 3
#define PPC4xx_PCI_NR_PTMS 2

struct PPC4xxPCIState {
    struct PCIMasterMap pmm[PPC4xx_PCI_NR_PMMS];
    struct PCITargetMap ptm[PPC4xx_PCI_NR_PTMS];

    PCIHostState pci_state;
    PCIDevice *pci_dev;
};
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_SIZE        0x40


static uint32_t pci4xx_cfgaddr_readl(void *opaque, target_phys_addr_t addr)
{
    PPC4xxPCIState *ppc4xx_pci = opaque;

    return ppc4xx_pci->pci_state.config_reg;
}

static CPUReadMemoryFunc *pci4xx_cfgaddr_read[] = {
    &pci4xx_cfgaddr_readl,
    &pci4xx_cfgaddr_readl,
    &pci4xx_cfgaddr_readl,
};

static void pci4xx_cfgaddr_writel(void *opaque, target_phys_addr_t addr,
                                  uint32_t value)
{
    PPC4xxPCIState *ppc4xx_pci = opaque;

#ifdef TARGET_WORDS_BIGENDIAN
    value = bswap32(value);
#endif

    ppc4xx_pci->pci_state.config_reg = value & ~0x3;
}

static CPUWriteMemoryFunc *pci4xx_cfgaddr_write[] = {
    &pci4xx_cfgaddr_writel,
    &pci4xx_cfgaddr_writel,
    &pci4xx_cfgaddr_writel,
};

static CPUReadMemoryFunc *pci4xx_cfgdata_read[] = {
    &pci_host_data_readb,
    &pci_host_data_readw,
    &pci_host_data_readl,
};

static CPUWriteMemoryFunc *pci4xx_cfgdata_write[] = {
    &pci_host_data_writeb,
    &pci_host_data_writew,
    &pci_host_data_writel,
};

static void ppc4xx_pci_reg_write4(void *opaque, target_phys_addr_t offset,
                                  uint32_t value)
{
    struct PPC4xxPCIState *pci = opaque;

#ifdef TARGET_WORDS_BIGENDIAN
    value = bswap32(value);
#endif

    /* 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 uint32_t ppc4xx_pci_reg_read4(void *opaque, target_phys_addr_t offset)
{
    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;
    }

#ifdef TARGET_WORDS_BIGENDIAN
    value = bswap32(value);
#endif

    return value;
}

static CPUReadMemoryFunc *pci_reg_read[] = {
    &ppc4xx_pci_reg_read4,
    &ppc4xx_pci_reg_read4,
    &ppc4xx_pci_reg_read4,
};

static CPUWriteMemoryFunc *pci_reg_write[] = {
    &ppc4xx_pci_reg_write4,
    &ppc4xx_pci_reg_write4,
    &ppc4xx_pci_reg_write4,
};

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;

    DPRINTF("%s: devfn %x irq %d -> %d\n", __func__,
            pci_dev->devfn, irq_num, slot);

    return slot - 1;
}

static void ppc4xx_pci_set_irq(qemu_irq *pci_irqs, int irq_num, int level)
{
    DPRINTF("%s: PCI irq %d\n", __func__, irq_num);
    qemu_set_irq(pci_irqs[irq_num], level);
}

static void ppc4xx_pci_save(QEMUFile *f, void *opaque)
{
    PPC4xxPCIState *controller = opaque;
    int i;

    pci_device_save(controller->pci_dev, f);

    for (i = 0; i < PPC4xx_PCI_NR_PMMS; i++) {
        qemu_put_be32s(f, &controller->pmm[i].la);
        qemu_put_be32s(f, &controller->pmm[i].ma);
        qemu_put_be32s(f, &controller->pmm[i].pcila);
        qemu_put_be32s(f, &controller->pmm[i].pciha);
    }

    for (i = 0; i < PPC4xx_PCI_NR_PTMS; i++) {
        qemu_put_be32s(f, &controller->ptm[i].ms);
        qemu_put_be32s(f, &controller->ptm[i].la);
    }
}

static int ppc4xx_pci_load(QEMUFile *f, void *opaque, int version_id)
{
    PPC4xxPCIState *controller = opaque;
    int i;

    if (version_id != 1)
        return -EINVAL;

    pci_device_load(controller->pci_dev, f);

    for (i = 0; i < PPC4xx_PCI_NR_PMMS; i++) {
        qemu_get_be32s(f, &controller->pmm[i].la);
        qemu_get_be32s(f, &controller->pmm[i].ma);
        qemu_get_be32s(f, &controller->pmm[i].pcila);
        qemu_get_be32s(f, &controller->pmm[i].pciha);
    }

    for (i = 0; i < PPC4xx_PCI_NR_PTMS; i++) {
        qemu_get_be32s(f, &controller->ptm[i].ms);
        qemu_get_be32s(f, &controller->ptm[i].la);
    }

    return 0;
}

/* XXX Interrupt acknowledge cycles not supported. */
PCIBus *ppc4xx_pci_init(CPUState *env, qemu_irq pci_irqs[4],
                        target_phys_addr_t config_space,
                        target_phys_addr_t int_ack,
                        target_phys_addr_t special_cycle,
                        target_phys_addr_t registers)
{
    PPC4xxPCIState *controller;
    int index;
    static int ppc4xx_pci_id;
    uint8_t *pci_conf;

    controller = qemu_mallocz(sizeof(PPC4xxPCIState));

    controller->pci_state.bus = pci_register_bus(NULL, "pci",
                                                 ppc4xx_pci_set_irq,
                                                 ppc4xx_pci_map_irq,
                                                 pci_irqs, 0, 4);

    controller->pci_dev = pci_register_device(controller->pci_state.bus,
                                              "host bridge", sizeof(PCIDevice),
                                              0, NULL, NULL);
    pci_conf = controller->pci_dev->config;
    pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_IBM);
    pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_IBM_440GX);
    pci_config_set_class(pci_conf, PCI_CLASS_BRIDGE_OTHER);

    /* CFGADDR */
    index = cpu_register_io_memory(0, pci4xx_cfgaddr_read,
                                   pci4xx_cfgaddr_write, controller);
    if (index < 0)
        goto free;
    cpu_register_physical_memory(config_space + PCIC0_CFGADDR, 4, index);

    /* CFGDATA */
    index = cpu_register_io_memory(0, pci4xx_cfgdata_read,
                                   pci4xx_cfgdata_write,
                                   &controller->pci_state);
    if (index < 0)
        goto free;
    cpu_register_physical_memory(config_space + PCIC0_CFGDATA, 4, index);

    /* Internal registers */
    index = cpu_register_io_memory(0, pci_reg_read, pci_reg_write, controller);
    if (index < 0)
        goto free;
    cpu_register_physical_memory(registers, PCI_REG_SIZE, index);

    qemu_register_reset(ppc4xx_pci_reset, 0, controller);

    /* XXX load/save code not tested. */
    register_savevm("ppc4xx_pci", ppc4xx_pci_id++, 1,
                    ppc4xx_pci_save, ppc4xx_pci_load, controller);

    return controller->pci_state.bus;

free:
    printf("%s error\n", __func__);
    qemu_free(controller);
    return NULL;
}
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
	12	* along with this program; if not, write to the Free Software
	13	* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
	14	*
	15	* Copyright IBM Corp. 2008
	16	*
	17	* Authors: Hollis Blanchard <[email protected]>
	18	*/
	19
	20	/* This file implements emulation of the 32-bit PCI controller found in some
	21	* 4xx SoCs, such as the 440EP. */
	22
	23	#include "hw.h"
0c34a5d7 AJ	24	#include "ppc.h"
0c34a5d7 AJ	25	#include "ppc4xx.h"
825bb581 AJ	26
	27	typedef target_phys_addr_t pci_addr_t;
	28	#include "pci.h"
	29	#include "pci_host.h"
	30	#include "bswap.h"
	31
	32	#undef DEBUG
	33	#ifdef DEBUG
	34	#define DPRINTF(fmt, ...) do { printf(fmt, ## __VA_ARGS__); } while (0)
	35	#else
001faf32	36	#define DPRINTF(fmt, ...)
825bb581 AJ	37	#endif /* DEBUG */
	38
	39	struct PCIMasterMap {
	40	uint32_t la;
	41	uint32_t ma;
	42	uint32_t pcila;
	43	uint32_t pciha;
	44	};
	45
	46	struct PCITargetMap {
	47	uint32_t ms;
	48	uint32_t la;
	49	};
	50
	51	#define PPC4xx_PCI_NR_PMMS 3
	52	#define PPC4xx_PCI_NR_PTMS 2
	53
	54	struct PPC4xxPCIState {
	55	struct PCIMasterMap pmm[PPC4xx_PCI_NR_PMMS];
	56	struct PCITargetMap ptm[PPC4xx_PCI_NR_PTMS];
	57
	58	PCIHostState pci_state;
	59	PCIDevice *pci_dev;
	60	};
	61	typedef struct PPC4xxPCIState PPC4xxPCIState;
	62
	63	#define PCIC0_CFGADDR 0x0
	64	#define PCIC0_CFGDATA 0x4
	65
	66	/* PLB Memory Map (PMM) registers specify which PLB addresses are translated to
	67	* PCI accesses. */
	68	#define PCIL0_PMM0LA 0x0
	69	#define PCIL0_PMM0MA 0x4
	70	#define PCIL0_PMM0PCILA 0x8
	71	#define PCIL0_PMM0PCIHA 0xc
	72	#define PCIL0_PMM1LA 0x10
	73	#define PCIL0_PMM1MA 0x14
	74	#define PCIL0_PMM1PCILA 0x18
	75	#define PCIL0_PMM1PCIHA 0x1c
	76	#define PCIL0_PMM2LA 0x20
	77	#define PCIL0_PMM2MA 0x24
	78	#define PCIL0_PMM2PCILA 0x28
	79	#define PCIL0_PMM2PCIHA 0x2c
	80
	81	/* PCI Target Map (PTM) registers specify which PCI addresses are translated to
	82	* PLB accesses. */
	83	#define PCIL0_PTM1MS 0x30
	84	#define PCIL0_PTM1LA 0x34
	85	#define PCIL0_PTM2MS 0x38
	86	#define PCIL0_PTM2LA 0x3c
	87	#define PCI_REG_SIZE 0x40
	88
	89
	90	static uint32_t pci4xx_cfgaddr_readl(void *opaque, target_phys_addr_t addr)
	91	{
	92	PPC4xxPCIState *ppc4xx_pci = opaque;
	93
	94	return ppc4xx_pci->pci_state.config_reg;
	95	}
	96
	97	static CPUReadMemoryFunc *pci4xx_cfgaddr_read[] = {
	98	&pci4xx_cfgaddr_readl,
	99	&pci4xx_cfgaddr_readl,
	100	&pci4xx_cfgaddr_readl,
101	};
102
103	static void pci4xx_cfgaddr_writel(void *opaque, target_phys_addr_t addr,
104	uint32_t value)
105	{
106	PPC4xxPCIState *ppc4xx_pci = opaque;
107
108	#ifdef TARGET_WORDS_BIGENDIAN
109	value = bswap32(value);
110	#endif
111
112	ppc4xx_pci->pci_state.config_reg = value & ~0x3;
113	}
114
115	static CPUWriteMemoryFunc *pci4xx_cfgaddr_write[] = {
116	&pci4xx_cfgaddr_writel,
117	&pci4xx_cfgaddr_writel,
118	&pci4xx_cfgaddr_writel,
119	};
120
121	static CPUReadMemoryFunc *pci4xx_cfgdata_read[] = {
122	&pci_host_data_readb,
123	&pci_host_data_readw,
124	&pci_host_data_readl,
125	};
126
127	static CPUWriteMemoryFunc *pci4xx_cfgdata_write[] = {
128	&pci_host_data_writeb,
129	&pci_host_data_writew,
130	&pci_host_data_writel,
131	};
132
133	static void ppc4xx_pci_reg_write4(void *opaque, target_phys_addr_t offset,
134	uint32_t value)
135	{
136	struct PPC4xxPCIState *pci = opaque;
137
138	#ifdef TARGET_WORDS_BIGENDIAN
139	value = bswap32(value);
140	#endif
141
142	/* We ignore all target attempts at PCI configuration, effectively
143	* assuming a bidirectional 1:1 mapping of PLB and PCI space. */
144
145	switch (offset) {
146	case PCIL0_PMM0LA:
147	pci->pmm[0].la = value;
148	break;
149	case PCIL0_PMM0MA:
150	pci->pmm[0].ma = value;
151	break;
152	case PCIL0_PMM0PCIHA:
153	pci->pmm[0].pciha = value;
154	break;
155	case PCIL0_PMM0PCILA:
156	pci->pmm[0].pcila = value;
157	break;
158
159	case PCIL0_PMM1LA:
160	pci->pmm[1].la = value;
161	break;
162	case PCIL0_PMM1MA:
163	pci->pmm[1].ma = value;
164	break;
165	case PCIL0_PMM1PCIHA:
166	pci->pmm[1].pciha = value;
167	break;
168	case PCIL0_PMM1PCILA:
169	pci->pmm[1].pcila = value;
170	break;
171
172	case PCIL0_PMM2LA:
173	pci->pmm[2].la = value;
174	break;
175	case PCIL0_PMM2MA:
176	pci->pmm[2].ma = value;
177	break;
178	case PCIL0_PMM2PCIHA:
179	pci->pmm[2].pciha = value;
180	break;
181	case PCIL0_PMM2PCILA:
182	pci->pmm[2].pcila = value;
183	break;
184
185	case PCIL0_PTM1MS:
186	pci->ptm[0].ms = value;
187	break;
188	case PCIL0_PTM1LA:
189	pci->ptm[0].la = value;
190	break;
191	case PCIL0_PTM2MS:
192	pci->ptm[1].ms = value;
193	break;
194	case PCIL0_PTM2LA:
195	pci->ptm[1].la = value;
196	break;
197
198	default:
199	printf("%s: unhandled PCI internal register 0x%lx\n", __func__,
200	(unsigned long)offset);
201	break;
202	}
203	}
204
205	static uint32_t ppc4xx_pci_reg_read4(void *opaque, target_phys_addr_t offset)
206	{
207	struct PPC4xxPCIState *pci = opaque;
208	uint32_t value;
209
210	switch (offset) {
211	case PCIL0_PMM0LA:
212	value = pci->pmm[0].la;
213	break;
214	case PCIL0_PMM0MA:
215	value = pci->pmm[0].ma;
216	break;
217	case PCIL0_PMM0PCIHA:
218	value = pci->pmm[0].pciha;
219	break;
220	case PCIL0_PMM0PCILA:
221	value = pci->pmm[0].pcila;
222	break;
223
224	case PCIL0_PMM1LA:
225	value = pci->pmm[1].la;
226	break;
227	case PCIL0_PMM1MA:
228	value = pci->pmm[1].ma;
229	break;
230	case PCIL0_PMM1PCIHA:
231	value = pci->pmm[1].pciha;
232	break;
233	case PCIL0_PMM1PCILA:
234	value = pci->pmm[1].pcila;
235	break;
236
237	case PCIL0_PMM2LA:
238	value = pci->pmm[2].la;
239	break;
240	case PCIL0_PMM2MA:
241	value = pci->pmm[2].ma;
242	break;
243	case PCIL0_PMM2PCIHA:
244	value = pci->pmm[2].pciha;
245	break;
246	case PCIL0_PMM2PCILA:
247	value = pci->pmm[2].pcila;
248	break;
249
250	case PCIL0_PTM1MS:
251	value = pci->ptm[0].ms;
252	break;
253	case PCIL0_PTM1LA:
254	value = pci->ptm[0].la;
255	break;
256	case PCIL0_PTM2MS:
257	value = pci->ptm[1].ms;
258	break;
259	case PCIL0_PTM2LA:
260	value = pci->ptm[1].la;
261	break;
262
263	default:
264	printf("%s: invalid PCI internal register 0x%lx\n", __func__,
265	(unsigned long)offset);
266	value = 0;
267	}
268
269	#ifdef TARGET_WORDS_BIGENDIAN
270	value = bswap32(value);
271	#endif
272
273	return value;
274	}
275
276	static CPUReadMemoryFunc *pci_reg_read[] = {
277	&ppc4xx_pci_reg_read4,
278	&ppc4xx_pci_reg_read4,
279	&ppc4xx_pci_reg_read4,
280	};
281
282	static CPUWriteMemoryFunc *pci_reg_write[] = {
283	&ppc4xx_pci_reg_write4,
284	&ppc4xx_pci_reg_write4,
285	&ppc4xx_pci_reg_write4,
286	};
287
288	static void ppc4xx_pci_reset(void *opaque)
289	{
290	struct PPC4xxPCIState *pci = opaque;
291
292	memset(pci->pmm, 0, sizeof(pci->pmm));
293	memset(pci->ptm, 0, sizeof(pci->ptm));
294	}
295
296	/* On Bamboo, all pins from each slot are tied to a single board IRQ. This
297	* may need further refactoring for other boards. */
298	static int ppc4xx_pci_map_irq(PCIDevice *pci_dev, int irq_num)
299	{
300	int slot = pci_dev->devfn >> 3;
301
302	DPRINTF("%s: devfn %x irq %d -> %d\n", __func__,
303	pci_dev->devfn, irq_num, slot);
304
305	return slot - 1;
306	}
307
308	static void ppc4xx_pci_set_irq(qemu_irq *pci_irqs, int irq_num, int level)
309	{
310	DPRINTF("%s: PCI irq %d\n", __func__, irq_num);
311	qemu_set_irq(pci_irqs[irq_num], level);
312	}
313
314	static void ppc4xx_pci_save(QEMUFile f, void opaque)
315	{
316	PPC4xxPCIState *controller = opaque;
317	int i;
318
3476f891	319	pci_device_save(controller->pci_dev, f);
825bb581 AJ	320
	321	for (i = 0; i < PPC4xx_PCI_NR_PMMS; i++) {
	322	qemu_put_be32s(f, &controller->pmm[i].la);
	323	qemu_put_be32s(f, &controller->pmm[i].ma);
	324	qemu_put_be32s(f, &controller->pmm[i].pcila);
	325	qemu_put_be32s(f, &controller->pmm[i].pciha);
	326	}
	327
	328	for (i = 0; i < PPC4xx_PCI_NR_PTMS; i++) {
	329	qemu_put_be32s(f, &controller->ptm[i].ms);
	330	qemu_put_be32s(f, &controller->ptm[i].la);
	331	}
	332	}
	333
	334	static int ppc4xx_pci_load(QEMUFile f, void opaque, int version_id)
	335	{
	336	PPC4xxPCIState *controller = opaque;
	337	int i;
	338
	339	if (version_id != 1)
	340	return -EINVAL;
	341
3476f891	342	pci_device_load(controller->pci_dev, f);
825bb581 AJ	343
	344	for (i = 0; i < PPC4xx_PCI_NR_PMMS; i++) {
	345	qemu_get_be32s(f, &controller->pmm[i].la);
	346	qemu_get_be32s(f, &controller->pmm[i].ma);
	347	qemu_get_be32s(f, &controller->pmm[i].pcila);
	348	qemu_get_be32s(f, &controller->pmm[i].pciha);
	349	}
	350
	351	for (i = 0; i < PPC4xx_PCI_NR_PTMS; i++) {
	352	qemu_get_be32s(f, &controller->ptm[i].ms);
	353	qemu_get_be32s(f, &controller->ptm[i].la);
	354	}
	355
	356	return 0;
	357	}
	358
	359	/* XXX Interrupt acknowledge cycles not supported. */
	360	PCIBus ppc4xx_pci_init(CPUState env, qemu_irq pci_irqs[4],
	361	target_phys_addr_t config_space,
	362	target_phys_addr_t int_ack,
	363	target_phys_addr_t special_cycle,
	364	target_phys_addr_t registers)
	365	{
	366	PPC4xxPCIState *controller;
	367	int index;
	368	static int ppc4xx_pci_id;
deb54399	369	uint8_t *pci_conf;
825bb581 AJ	370
825bb581 AJ	371	controller = qemu_mallocz(sizeof(PPC4xxPCIState));
825bb581	372
02e2da45 PB	373	controller->pci_state.bus = pci_register_bus(NULL, "pci",
02e2da45 PB	374	ppc4xx_pci_set_irq,
825bb581 AJ	375	ppc4xx_pci_map_irq,
	376	pci_irqs, 0, 4);
	377
	378	controller->pci_dev = pci_register_device(controller->pci_state.bus,
	379	"host bridge", sizeof(PCIDevice),
	380	0, NULL, NULL);
deb54399 AL	381	pci_conf = controller->pci_dev->config;
deb54399 AL	382	pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_IBM);
a770dc7e	383	pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_IBM_440GX);
173a543b	384	pci_config_set_class(pci_conf, PCI_CLASS_BRIDGE_OTHER);
825bb581 AJ	385
	386	/* CFGADDR */
	387	index = cpu_register_io_memory(0, pci4xx_cfgaddr_read,
	388	pci4xx_cfgaddr_write, controller);
	389	if (index < 0)
	390	goto free;
	391	cpu_register_physical_memory(config_space + PCIC0_CFGADDR, 4, index);
	392
	393	/* CFGDATA */
	394	index = cpu_register_io_memory(0, pci4xx_cfgdata_read,
	395	pci4xx_cfgdata_write,
	396	&controller->pci_state);
	397	if (index < 0)
	398	goto free;
	399	cpu_register_physical_memory(config_space + PCIC0_CFGDATA, 4, index);
	400
	401	/* Internal registers */
	402	index = cpu_register_io_memory(0, pci_reg_read, pci_reg_write, controller);
	403	if (index < 0)
	404	goto free;
	405	cpu_register_physical_memory(registers, PCI_REG_SIZE, index);
	406
8217606e	407	qemu_register_reset(ppc4xx_pci_reset, 0, controller);
825bb581 AJ	408
	409	/* XXX load/save code not tested. */
	410	register_savevm("ppc4xx_pci", ppc4xx_pci_id++, 1,
	411	ppc4xx_pci_save, ppc4xx_pci_load, controller);
	412
	413	return controller->pci_state.bus;
	414
	415	free:
	416	printf("%s error\n", __func__);
	417	qemu_free(controller);
	418	return NULL;
	419	}