hw/pci-host/pnv_phb4_pec.c - third_party/qemu - Git at Google

 /*
  * QEMU PowerPC PowerNV (POWER9) PHB4 model
  *
  * Copyright (c) 2018-2020, IBM Corporation.
  *
  * This code is licensed under the GPL version 2 or later. See the
  * COPYING file in the top-level directory.
  */
 #include "qemu/osdep.h"
 #include "qapi/error.h"
 #include "qemu-common.h"
 #include "qemu/log.h"
 #include "target/ppc/cpu.h"
 #include "hw/ppc/fdt.h"
 #include "hw/pci-host/pnv_phb4_regs.h"
 #include "hw/pci-host/pnv_phb4.h"
 #include "hw/ppc/pnv_xscom.h"
 #include "hw/pci/pci_bridge.h"
 #include "hw/pci/pci_bus.h"
 #include "hw/ppc/pnv.h"
 #include "hw/qdev-properties.h"
 #include "sysemu/sysemu.h"

 #include <libfdt.h>

 #define phb_pec_error(pec, fmt, ...)                                    \
     qemu_log_mask(LOG_GUEST_ERROR, "phb4_pec[%d:%d]: " fmt "\n",        \
                   (pec)->chip_id, (pec)->index, ## __VA_ARGS__)


 static uint64_t pnv_pec_nest_xscom_read(void *opaque, hwaddr addr,
                                         unsigned size)
 {
     PnvPhb4PecState *pec = PNV_PHB4_PEC(opaque);
     uint32_t reg = addr >> 3;

     /* TODO: add list of allowed registers and error out if not */
     return pec->nest_regs[reg];
 }

 static void pnv_pec_nest_xscom_write(void *opaque, hwaddr addr,
                                      uint64_t val, unsigned size)
 {
     PnvPhb4PecState *pec = PNV_PHB4_PEC(opaque);
     uint32_t reg = addr >> 3;

     switch (reg) {
     case PEC_NEST_PBCQ_HW_CONFIG:
     case PEC_NEST_DROP_PRIO_CTRL:
     case PEC_NEST_PBCQ_ERR_INJECT:
     case PEC_NEST_PCI_NEST_CLK_TRACE_CTL:
     case PEC_NEST_PBCQ_PMON_CTRL:
     case PEC_NEST_PBCQ_PBUS_ADDR_EXT:
     case PEC_NEST_PBCQ_PRED_VEC_TIMEOUT:
     case PEC_NEST_CAPP_CTRL:
     case PEC_NEST_PBCQ_READ_STK_OVR:
     case PEC_NEST_PBCQ_WRITE_STK_OVR:
     case PEC_NEST_PBCQ_STORE_STK_OVR:
     case PEC_NEST_PBCQ_RETRY_BKOFF_CTRL:
         pec->nest_regs[reg] = val;
         break;
     default:
         phb_pec_error(pec, "%s @0x%"HWADDR_PRIx"=%"PRIx64"\n", __func__,
                       addr, val);
     }
 }

 static const MemoryRegionOps pnv_pec_nest_xscom_ops = {
     .read = pnv_pec_nest_xscom_read,
     .write = pnv_pec_nest_xscom_write,
     .valid.min_access_size = 8,
     .valid.max_access_size = 8,
     .impl.min_access_size = 8,
     .impl.max_access_size = 8,
     .endianness = DEVICE_BIG_ENDIAN,
 };

 static uint64_t pnv_pec_pci_xscom_read(void *opaque, hwaddr addr,
                                        unsigned size)
 {
     PnvPhb4PecState *pec = PNV_PHB4_PEC(opaque);
     uint32_t reg = addr >> 3;

     /* TODO: add list of allowed registers and error out if not */
     return pec->pci_regs[reg];
 }

 static void pnv_pec_pci_xscom_write(void *opaque, hwaddr addr,
                                     uint64_t val, unsigned size)
 {
     PnvPhb4PecState *pec = PNV_PHB4_PEC(opaque);
     uint32_t reg = addr >> 3;

     switch (reg) {
     case PEC_PCI_PBAIB_HW_CONFIG:
     case PEC_PCI_PBAIB_READ_STK_OVR:
         pec->pci_regs[reg] = val;
         break;
     default:
         phb_pec_error(pec, "%s @0x%"HWADDR_PRIx"=%"PRIx64"\n", __func__,
                       addr, val);
     }
 }

 static const MemoryRegionOps pnv_pec_pci_xscom_ops = {
     .read = pnv_pec_pci_xscom_read,
     .write = pnv_pec_pci_xscom_write,
     .valid.min_access_size = 8,
     .valid.max_access_size = 8,
     .impl.min_access_size = 8,
     .impl.max_access_size = 8,
     .endianness = DEVICE_BIG_ENDIAN,
 };

 static void pnv_pec_default_phb_realize(PnvPhb4PecState *pec,
                                         int stack_no,
                                         Error **errp)
 {
     PnvPhb4PecClass *pecc = PNV_PHB4_PEC_GET_CLASS(pec);
     PnvPHB4 *phb = PNV_PHB4(qdev_new(pecc->phb_type));
     int phb_id = pnv_phb4_pec_get_phb_id(pec, stack_no);

     object_property_add_child(OBJECT(pec), "phb[*]", OBJECT(phb));
     object_property_set_link(OBJECT(phb), "pec", OBJECT(pec),
                              &error_abort);
     object_property_set_int(OBJECT(phb), "chip-id", pec->chip_id,
                             &error_fatal);
     object_property_set_int(OBJECT(phb), "index", phb_id,
                             &error_fatal);

     if (!sysbus_realize(SYS_BUS_DEVICE(phb), errp)) {
         return;
     }

     /* Add a single Root port if running with defaults */
     pnv_phb_attach_root_port(PCI_HOST_BRIDGE(phb), pecc->rp_model);
 }

 static void pnv_pec_realize(DeviceState *dev, Error **errp)
 {
     PnvPhb4PecState *pec = PNV_PHB4_PEC(dev);
     PnvPhb4PecClass *pecc = PNV_PHB4_PEC_GET_CLASS(pec);
     char name[64];
     int i;

     if (pec->index >= PNV_CHIP_GET_CLASS(pec->chip)->num_pecs) {
         error_setg(errp, "invalid PEC index: %d", pec->index);
         return;
     }

     pec->num_phbs = pecc->num_phbs[pec->index];

     /* Create PHBs if running with defaults */
     for (i = 0; i < pec->num_phbs; i++) {
         pnv_pec_default_phb_realize(pec, i, errp);
     }

     /* Initialize the XSCOM regions for the PEC registers */
     snprintf(name, sizeof(name), "xscom-pec-%d.%d-nest", pec->chip_id,
              pec->index);
     pnv_xscom_region_init(&pec->nest_regs_mr, OBJECT(dev),
                           &pnv_pec_nest_xscom_ops, pec, name,
                           PHB4_PEC_NEST_REGS_COUNT);

     snprintf(name, sizeof(name), "xscom-pec-%d.%d-pci", pec->chip_id,
              pec->index);
     pnv_xscom_region_init(&pec->pci_regs_mr, OBJECT(dev),
                           &pnv_pec_pci_xscom_ops, pec, name,
                           PHB4_PEC_PCI_REGS_COUNT);
 }

 static int pnv_pec_dt_xscom(PnvXScomInterface *dev, void *fdt,
                             int xscom_offset)
 {
     PnvPhb4PecState *pec = PNV_PHB4_PEC(dev);
     PnvPhb4PecClass *pecc = PNV_PHB4_PEC_GET_CLASS(dev);
     uint32_t nbase = pecc->xscom_nest_base(pec);
     uint32_t pbase = pecc->xscom_pci_base(pec);
     int offset, i;
     char *name;
     uint32_t reg[] = {
         cpu_to_be32(nbase),
         cpu_to_be32(pecc->xscom_nest_size),
         cpu_to_be32(pbase),
         cpu_to_be32(pecc->xscom_pci_size),
     };

     name = g_strdup_printf("pbcq@%x", nbase);
     offset = fdt_add_subnode(fdt, xscom_offset, name);
     _FDT(offset);
     g_free(name);

     _FDT((fdt_setprop(fdt, offset, "reg", reg, sizeof(reg))));

     _FDT((fdt_setprop_cell(fdt, offset, "ibm,pec-index", pec->index)));
     _FDT((fdt_setprop_cell(fdt, offset, "#address-cells", 1)));
     _FDT((fdt_setprop_cell(fdt, offset, "#size-cells", 0)));
     _FDT((fdt_setprop(fdt, offset, "compatible", pecc->compat,
                       pecc->compat_size)));

     for (i = 0; i < pec->num_phbs; i++) {
         int phb_id = pnv_phb4_pec_get_phb_id(pec, i);
         int stk_offset;

         name = g_strdup_printf("stack@%x", i);
         stk_offset = fdt_add_subnode(fdt, offset, name);
         _FDT(stk_offset);
         g_free(name);
         _FDT((fdt_setprop(fdt, stk_offset, "compatible", pecc->stk_compat,
                           pecc->stk_compat_size)));
         _FDT((fdt_setprop_cell(fdt, stk_offset, "reg", i)));
         _FDT((fdt_setprop_cell(fdt, stk_offset, "ibm,phb-index", phb_id)));
     }

     return 0;
 }

 static Property pnv_pec_properties[] = {
         DEFINE_PROP_UINT32("index", PnvPhb4PecState, index, 0),
         DEFINE_PROP_UINT32("chip-id", PnvPhb4PecState, chip_id, 0),
         DEFINE_PROP_LINK("chip", PnvPhb4PecState, chip, TYPE_PNV_CHIP,
                          PnvChip *),
         DEFINE_PROP_END_OF_LIST(),
 };

 static uint32_t pnv_pec_xscom_pci_base(PnvPhb4PecState *pec)
 {
     return PNV9_XSCOM_PEC_PCI_BASE + 0x1000000 * pec->index;
 }

 static uint32_t pnv_pec_xscom_nest_base(PnvPhb4PecState *pec)
 {
     return PNV9_XSCOM_PEC_NEST_BASE + 0x400 * pec->index;
 }

 /*
  * PEC0 -> 1 phb
  * PEC1 -> 2 phb
  * PEC2 -> 3 phbs
  */
 static const uint32_t pnv_pec_num_phbs[] = { 1, 2, 3 };

 static void pnv_pec_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
     PnvXScomInterfaceClass *xdc = PNV_XSCOM_INTERFACE_CLASS(klass);
     PnvPhb4PecClass *pecc = PNV_PHB4_PEC_CLASS(klass);
     static const char compat[] = "ibm,power9-pbcq";
     static const char stk_compat[] = "ibm,power9-phb-stack";

     xdc->dt_xscom = pnv_pec_dt_xscom;

     dc->realize = pnv_pec_realize;
     device_class_set_props(dc, pnv_pec_properties);
     dc->user_creatable = false;

     pecc->xscom_nest_base = pnv_pec_xscom_nest_base;
     pecc->xscom_pci_base  = pnv_pec_xscom_pci_base;
     pecc->xscom_nest_size = PNV9_XSCOM_PEC_NEST_SIZE;
     pecc->xscom_pci_size  = PNV9_XSCOM_PEC_PCI_SIZE;
     pecc->compat = compat;
     pecc->compat_size = sizeof(compat);
     pecc->stk_compat = stk_compat;
     pecc->stk_compat_size = sizeof(stk_compat);
     pecc->version = PNV_PHB4_VERSION;
     pecc->phb_type = TYPE_PNV_PHB4;
     pecc->num_phbs = pnv_pec_num_phbs;
     pecc->rp_model = TYPE_PNV_PHB4_ROOT_PORT;
 }

 static const TypeInfo pnv_pec_type_info = {
     .name          = TYPE_PNV_PHB4_PEC,
     .parent        = TYPE_DEVICE,
     .instance_size = sizeof(PnvPhb4PecState),
     .class_init    = pnv_pec_class_init,
     .class_size    = sizeof(PnvPhb4PecClass),
     .interfaces    = (InterfaceInfo[]) {
         { TYPE_PNV_XSCOM_INTERFACE },
         { }
     }
 };

 /*
  * POWER10 definitions
  */

 static uint32_t pnv_phb5_pec_xscom_pci_base(PnvPhb4PecState *pec)
 {
     return PNV10_XSCOM_PEC_PCI_BASE + 0x1000000 * pec->index;
 }

 static uint32_t pnv_phb5_pec_xscom_nest_base(PnvPhb4PecState *pec)
 {
     /* index goes down ... */
     return PNV10_XSCOM_PEC_NEST_BASE - 0x1000000 * pec->index;
 }

 /*
  * PEC0 -> 3 stacks
  * PEC1 -> 3 stacks
  */
 static const uint32_t pnv_phb5_pec_num_stacks[] = { 3, 3 };

 static void pnv_phb5_pec_class_init(ObjectClass *klass, void *data)
 {
     PnvPhb4PecClass *pecc = PNV_PHB4_PEC_CLASS(klass);
     static const char compat[] = "ibm,power10-pbcq";
     static const char stk_compat[] = "ibm,power10-phb-stack";

     pecc->xscom_nest_base = pnv_phb5_pec_xscom_nest_base;
     pecc->xscom_pci_base  = pnv_phb5_pec_xscom_pci_base;
     pecc->xscom_nest_size = PNV10_XSCOM_PEC_NEST_SIZE;
     pecc->xscom_pci_size  = PNV10_XSCOM_PEC_PCI_SIZE;
     pecc->compat = compat;
     pecc->compat_size = sizeof(compat);
     pecc->stk_compat = stk_compat;
     pecc->stk_compat_size = sizeof(stk_compat);
     pecc->version = PNV_PHB5_VERSION;
     pecc->phb_type = TYPE_PNV_PHB5;
     pecc->num_phbs = pnv_phb5_pec_num_stacks;
     pecc->rp_model = TYPE_PNV_PHB5_ROOT_PORT;
 }

 static const TypeInfo pnv_phb5_pec_type_info = {
     .name          = TYPE_PNV_PHB5_PEC,
     .parent        = TYPE_PNV_PHB4_PEC,
     .instance_size = sizeof(PnvPhb4PecState),
     .class_init    = pnv_phb5_pec_class_init,
     .class_size    = sizeof(PnvPhb4PecClass),
     .interfaces    = (InterfaceInfo[]) {
         { TYPE_PNV_XSCOM_INTERFACE },
         { }
     }
 };

 static void pnv_pec_register_types(void)
 {
     type_register_static(&pnv_pec_type_info);
     type_register_static(&pnv_phb5_pec_type_info);
 }

 type_init(pnv_pec_register_types);
	/*
	* QEMU PowerPC PowerNV (POWER9) PHB4 model
	*
	* Copyright (c) 2018-2020, IBM Corporation.
	*
	* This code is licensed under the GPL version 2 or later. See the
	* COPYING file in the top-level directory.
	*/
	#include "qemu/osdep.h"
	#include "qapi/error.h"
	#include "qemu-common.h"
	#include "qemu/log.h"
	#include "target/ppc/cpu.h"
	#include "hw/ppc/fdt.h"
	#include "hw/pci-host/pnv_phb4_regs.h"
	#include "hw/pci-host/pnv_phb4.h"
	#include "hw/ppc/pnv_xscom.h"
	#include "hw/pci/pci_bridge.h"
	#include "hw/pci/pci_bus.h"
	#include "hw/ppc/pnv.h"
	#include "hw/qdev-properties.h"
	#include "sysemu/sysemu.h"

	#include <libfdt.h>

	#define phb_pec_error(pec, fmt, ...) \
	qemu_log_mask(LOG_GUEST_ERROR, "phb4_pec[%d:%d]: " fmt "\n", \
	(pec)->chip_id, (pec)->index, ## __VA_ARGS__)


	static uint64_t pnv_pec_nest_xscom_read(void *opaque, hwaddr addr,
	unsigned size)
	{
	PnvPhb4PecState *pec = PNV_PHB4_PEC(opaque);
	uint32_t reg = addr >> 3;

	/* TODO: add list of allowed registers and error out if not */
	return pec->nest_regs[reg];
	}

	static void pnv_pec_nest_xscom_write(void *opaque, hwaddr addr,
	uint64_t val, unsigned size)
	{
	PnvPhb4PecState *pec = PNV_PHB4_PEC(opaque);
	uint32_t reg = addr >> 3;

	switch (reg) {
	case PEC_NEST_PBCQ_HW_CONFIG:
	case PEC_NEST_DROP_PRIO_CTRL:
	case PEC_NEST_PBCQ_ERR_INJECT:
	case PEC_NEST_PCI_NEST_CLK_TRACE_CTL:
	case PEC_NEST_PBCQ_PMON_CTRL:
	case PEC_NEST_PBCQ_PBUS_ADDR_EXT:
	case PEC_NEST_PBCQ_PRED_VEC_TIMEOUT:
	case PEC_NEST_CAPP_CTRL:
	case PEC_NEST_PBCQ_READ_STK_OVR:
	case PEC_NEST_PBCQ_WRITE_STK_OVR:
	case PEC_NEST_PBCQ_STORE_STK_OVR:
	case PEC_NEST_PBCQ_RETRY_BKOFF_CTRL:
	pec->nest_regs[reg] = val;
	break;
	default:
	phb_pec_error(pec, "%s @0x%"HWADDR_PRIx"=%"PRIx64"\n", __func__,
	addr, val);
	}
	}

	static const MemoryRegionOps pnv_pec_nest_xscom_ops = {
	.read = pnv_pec_nest_xscom_read,
	.write = pnv_pec_nest_xscom_write,
	.valid.min_access_size = 8,
	.valid.max_access_size = 8,
	.impl.min_access_size = 8,
	.impl.max_access_size = 8,
	.endianness = DEVICE_BIG_ENDIAN,
	};

	static uint64_t pnv_pec_pci_xscom_read(void *opaque, hwaddr addr,
	unsigned size)
	{
	PnvPhb4PecState *pec = PNV_PHB4_PEC(opaque);
	uint32_t reg = addr >> 3;

	/* TODO: add list of allowed registers and error out if not */
	return pec->pci_regs[reg];
	}

	static void pnv_pec_pci_xscom_write(void *opaque, hwaddr addr,
	uint64_t val, unsigned size)
	{
	PnvPhb4PecState *pec = PNV_PHB4_PEC(opaque);
	uint32_t reg = addr >> 3;

	switch (reg) {
	case PEC_PCI_PBAIB_HW_CONFIG:
	case PEC_PCI_PBAIB_READ_STK_OVR:
	pec->pci_regs[reg] = val;
	break;
	default:
	phb_pec_error(pec, "%s @0x%"HWADDR_PRIx"=%"PRIx64"\n", __func__,
	addr, val);
	}
	}

	static const MemoryRegionOps pnv_pec_pci_xscom_ops = {
	.read = pnv_pec_pci_xscom_read,
	.write = pnv_pec_pci_xscom_write,
	.valid.min_access_size = 8,
	.valid.max_access_size = 8,
	.impl.min_access_size = 8,
	.impl.max_access_size = 8,
	.endianness = DEVICE_BIG_ENDIAN,
	};

	static void pnv_pec_default_phb_realize(PnvPhb4PecState *pec,
	int stack_no,
	Error **errp)
	{
	PnvPhb4PecClass *pecc = PNV_PHB4_PEC_GET_CLASS(pec);
	PnvPHB4 *phb = PNV_PHB4(qdev_new(pecc->phb_type));
	int phb_id = pnv_phb4_pec_get_phb_id(pec, stack_no);

	object_property_add_child(OBJECT(pec), "phb[*]", OBJECT(phb));
	object_property_set_link(OBJECT(phb), "pec", OBJECT(pec),
	&error_abort);
	object_property_set_int(OBJECT(phb), "chip-id", pec->chip_id,
	&error_fatal);
	object_property_set_int(OBJECT(phb), "index", phb_id,
	&error_fatal);

	if (!sysbus_realize(SYS_BUS_DEVICE(phb), errp)) {
	return;
	}

	/* Add a single Root port if running with defaults */
	pnv_phb_attach_root_port(PCI_HOST_BRIDGE(phb), pecc->rp_model);
	}

	static void pnv_pec_realize(DeviceState dev, Error *errp)
	{
	PnvPhb4PecState *pec = PNV_PHB4_PEC(dev);
	PnvPhb4PecClass *pecc = PNV_PHB4_PEC_GET_CLASS(pec);
	char name[64];
	int i;

	if (pec->index >= PNV_CHIP_GET_CLASS(pec->chip)->num_pecs) {
	error_setg(errp, "invalid PEC index: %d", pec->index);
	return;
	}

	pec->num_phbs = pecc->num_phbs[pec->index];

	/* Create PHBs if running with defaults */
	for (i = 0; i < pec->num_phbs; i++) {
	pnv_pec_default_phb_realize(pec, i, errp);
	}

	/* Initialize the XSCOM regions for the PEC registers */
	snprintf(name, sizeof(name), "xscom-pec-%d.%d-nest", pec->chip_id,
	pec->index);
	pnv_xscom_region_init(&pec->nest_regs_mr, OBJECT(dev),
	&pnv_pec_nest_xscom_ops, pec, name,
	PHB4_PEC_NEST_REGS_COUNT);

	snprintf(name, sizeof(name), "xscom-pec-%d.%d-pci", pec->chip_id,
	pec->index);
	pnv_xscom_region_init(&pec->pci_regs_mr, OBJECT(dev),
	&pnv_pec_pci_xscom_ops, pec, name,
	PHB4_PEC_PCI_REGS_COUNT);
	}

	static int pnv_pec_dt_xscom(PnvXScomInterface dev, void fdt,
	int xscom_offset)
	{
	PnvPhb4PecState *pec = PNV_PHB4_PEC(dev);
	PnvPhb4PecClass *pecc = PNV_PHB4_PEC_GET_CLASS(dev);
	uint32_t nbase = pecc->xscom_nest_base(pec);
	uint32_t pbase = pecc->xscom_pci_base(pec);
	int offset, i;
	char *name;
	uint32_t reg[] = {
	cpu_to_be32(nbase),
	cpu_to_be32(pecc->xscom_nest_size),
	cpu_to_be32(pbase),
	cpu_to_be32(pecc->xscom_pci_size),
	};

	name = g_strdup_printf("pbcq@%x", nbase);
	offset = fdt_add_subnode(fdt, xscom_offset, name);
	_FDT(offset);
	g_free(name);

	_FDT((fdt_setprop(fdt, offset, "reg", reg, sizeof(reg))));

	_FDT((fdt_setprop_cell(fdt, offset, "ibm,pec-index", pec->index)));
	_FDT((fdt_setprop_cell(fdt, offset, "#address-cells", 1)));
	_FDT((fdt_setprop_cell(fdt, offset, "#size-cells", 0)));
	_FDT((fdt_setprop(fdt, offset, "compatible", pecc->compat,
	pecc->compat_size)));

	for (i = 0; i < pec->num_phbs; i++) {
	int phb_id = pnv_phb4_pec_get_phb_id(pec, i);
	int stk_offset;

	name = g_strdup_printf("stack@%x", i);
	stk_offset = fdt_add_subnode(fdt, offset, name);
	_FDT(stk_offset);
	g_free(name);
	_FDT((fdt_setprop(fdt, stk_offset, "compatible", pecc->stk_compat,
	pecc->stk_compat_size)));
	_FDT((fdt_setprop_cell(fdt, stk_offset, "reg", i)));
	_FDT((fdt_setprop_cell(fdt, stk_offset, "ibm,phb-index", phb_id)));
	}

	return 0;
	}

	static Property pnv_pec_properties[] = {
	DEFINE_PROP_UINT32("index", PnvPhb4PecState, index, 0),
	DEFINE_PROP_UINT32("chip-id", PnvPhb4PecState, chip_id, 0),
	DEFINE_PROP_LINK("chip", PnvPhb4PecState, chip, TYPE_PNV_CHIP,
	PnvChip *),
	DEFINE_PROP_END_OF_LIST(),
	};

	static uint32_t pnv_pec_xscom_pci_base(PnvPhb4PecState *pec)
	{
	return PNV9_XSCOM_PEC_PCI_BASE + 0x1000000 * pec->index;
	}

	static uint32_t pnv_pec_xscom_nest_base(PnvPhb4PecState *pec)
	{
	return PNV9_XSCOM_PEC_NEST_BASE + 0x400 * pec->index;
	}

	/*
	* PEC0 -> 1 phb
	* PEC1 -> 2 phb
	* PEC2 -> 3 phbs
	*/
	static const uint32_t pnv_pec_num_phbs[] = { 1, 2, 3 };

	static void pnv_pec_class_init(ObjectClass klass, void data)
	{
	DeviceClass *dc = DEVICE_CLASS(klass);
	PnvXScomInterfaceClass *xdc = PNV_XSCOM_INTERFACE_CLASS(klass);
	PnvPhb4PecClass *pecc = PNV_PHB4_PEC_CLASS(klass);
	static const char compat[] = "ibm,power9-pbcq";
	static const char stk_compat[] = "ibm,power9-phb-stack";

	xdc->dt_xscom = pnv_pec_dt_xscom;

	dc->realize = pnv_pec_realize;
	device_class_set_props(dc, pnv_pec_properties);
	dc->user_creatable = false;

	pecc->xscom_nest_base = pnv_pec_xscom_nest_base;
	pecc->xscom_pci_base = pnv_pec_xscom_pci_base;
	pecc->xscom_nest_size = PNV9_XSCOM_PEC_NEST_SIZE;
	pecc->xscom_pci_size = PNV9_XSCOM_PEC_PCI_SIZE;
	pecc->compat = compat;
	pecc->compat_size = sizeof(compat);
	pecc->stk_compat = stk_compat;
	pecc->stk_compat_size = sizeof(stk_compat);
	pecc->version = PNV_PHB4_VERSION;
	pecc->phb_type = TYPE_PNV_PHB4;
	pecc->num_phbs = pnv_pec_num_phbs;
	pecc->rp_model = TYPE_PNV_PHB4_ROOT_PORT;
	}

	static const TypeInfo pnv_pec_type_info = {
	.name = TYPE_PNV_PHB4_PEC,
	.parent = TYPE_DEVICE,
	.instance_size = sizeof(PnvPhb4PecState),
	.class_init = pnv_pec_class_init,
	.class_size = sizeof(PnvPhb4PecClass),
	.interfaces = (InterfaceInfo[]) {
	{ TYPE_PNV_XSCOM_INTERFACE },
	{ }
	}
	};

	/*
	* POWER10 definitions
	*/

	static uint32_t pnv_phb5_pec_xscom_pci_base(PnvPhb4PecState *pec)
	{
	return PNV10_XSCOM_PEC_PCI_BASE + 0x1000000 * pec->index;
	}

	static uint32_t pnv_phb5_pec_xscom_nest_base(PnvPhb4PecState *pec)
	{
	/* index goes down ... */
	return PNV10_XSCOM_PEC_NEST_BASE - 0x1000000 * pec->index;
	}

	/*
	* PEC0 -> 3 stacks
	* PEC1 -> 3 stacks
	*/
	static const uint32_t pnv_phb5_pec_num_stacks[] = { 3, 3 };

	static void pnv_phb5_pec_class_init(ObjectClass klass, void data)
	{
	PnvPhb4PecClass *pecc = PNV_PHB4_PEC_CLASS(klass);
	static const char compat[] = "ibm,power10-pbcq";
	static const char stk_compat[] = "ibm,power10-phb-stack";

	pecc->xscom_nest_base = pnv_phb5_pec_xscom_nest_base;
	pecc->xscom_pci_base = pnv_phb5_pec_xscom_pci_base;
	pecc->xscom_nest_size = PNV10_XSCOM_PEC_NEST_SIZE;
	pecc->xscom_pci_size = PNV10_XSCOM_PEC_PCI_SIZE;
	pecc->compat = compat;
	pecc->compat_size = sizeof(compat);
	pecc->stk_compat = stk_compat;
	pecc->stk_compat_size = sizeof(stk_compat);
	pecc->version = PNV_PHB5_VERSION;
	pecc->phb_type = TYPE_PNV_PHB5;
	pecc->num_phbs = pnv_phb5_pec_num_stacks;
	pecc->rp_model = TYPE_PNV_PHB5_ROOT_PORT;
	}

	static const TypeInfo pnv_phb5_pec_type_info = {
	.name = TYPE_PNV_PHB5_PEC,
	.parent = TYPE_PNV_PHB4_PEC,
	.instance_size = sizeof(PnvPhb4PecState),
	.class_init = pnv_phb5_pec_class_init,
	.class_size = sizeof(PnvPhb4PecClass),
	.interfaces = (InterfaceInfo[]) {
	{ TYPE_PNV_XSCOM_INTERFACE },
	{ }
	}
	};

	static void pnv_pec_register_types(void)
	{
	type_register_static(&pnv_pec_type_info);
	type_register_static(&pnv_phb5_pec_type_info);
	}

	type_init(pnv_pec_register_types);