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xemu/hw/pci-host/uninorth.c
Eduardo Habkost e90f2a8c3e qdev: Replace cannot_instantiate_with_device_add_yet with !user_creatable 
cannot_instantiate_with_device_add_yet was introduced by commit
efec3dd631 to replace no_user. It was
supposed to be a temporary measure.

When it was introduced, we had 54
cannot_instantiate_with_device_add_yet=true lines in the code.
Today (3 years later) this number has not shrunk: we now have
57 cannot_instantiate_with_device_add_yet=true lines. I think it
is safe to say it is not a temporary measure, and we won't see
the flag go away soon.

Instead of a long field name that misleads people to believe it
is temporary, replace it a shorter and less misleading field:
user_creatable.

Except for code comments, changes were generated using the
following Coccinelle patch:

  @@
  expression DC;
  @@
  (
  -DC->cannot_instantiate_with_device_add_yet = false;
  +DC->user_creatable = true;
  |
  -DC->cannot_instantiate_with_device_add_yet = true;
  +DC->user_creatable = false;
  )

  @@
  typedef ObjectClass;
  expression dc;
  identifier class, data;
  @@
   static void device_class_init(ObjectClass *class, void *data)
   {
   ...
   dc->hotpluggable = true;
  +dc->user_creatable = true;
   ...
   }

  @@
  @@
   struct DeviceClass {
   ...
  -bool cannot_instantiate_with_device_add_yet;
  +bool user_creatable;
   ...
  }

  @@
  expression DC;
  @@
  (
  -!DC->cannot_instantiate_with_device_add_yet
  +DC->user_creatable
  |
  -DC->cannot_instantiate_with_device_add_yet
  +!DC->user_creatable
  )

Cc: Alistair Francis <alistair.francis@xilinx.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Marcel Apfelbaum <marcel@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Thomas Huth <thuth@redhat.com>
Acked-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Acked-by: Marcel Apfelbaum <marcel@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20170503203604.31462-2-ehabkost@redhat.com>
[ehabkost: kept "TODO remove once we're there" comment]
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-05-17 10:37:00 -03:00

529 lines
16 KiB
C
Raw Blame History

/*
* QEMU Uninorth PCI host (for all Mac99 and newer machines)
*
* Copyright (c) 2006 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "qemu/osdep.h"
#include "hw/hw.h"
#include "hw/ppc/mac.h"
#include "hw/pci/pci.h"
#include "hw/pci/pci_host.h"
/* debug UniNorth */
//#define DEBUG_UNIN
#ifdef DEBUG_UNIN
#define UNIN_DPRINTF(fmt, ...) \
do { printf("UNIN: " fmt , ## __VA_ARGS__); } while (0)
#else
#define UNIN_DPRINTF(fmt, ...)
#endif
static const int unin_irq_line[] = { 0x1b, 0x1c, 0x1d, 0x1e };
#define TYPE_UNI_NORTH_PCI_HOST_BRIDGE "uni-north-pci-pcihost"
#define TYPE_UNI_NORTH_AGP_HOST_BRIDGE "uni-north-agp-pcihost"
#define TYPE_UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE "uni-north-internal-pci-pcihost"
#define TYPE_U3_AGP_HOST_BRIDGE "u3-agp-pcihost"
#define UNI_NORTH_PCI_HOST_BRIDGE(obj) \
OBJECT_CHECK(UNINState, (obj), TYPE_UNI_NORTH_PCI_HOST_BRIDGE)
#define UNI_NORTH_AGP_HOST_BRIDGE(obj) \
OBJECT_CHECK(UNINState, (obj), TYPE_UNI_NORTH_AGP_HOST_BRIDGE)
#define UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE(obj) \
OBJECT_CHECK(UNINState, (obj), TYPE_UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE)
#define U3_AGP_HOST_BRIDGE(obj) \
OBJECT_CHECK(UNINState, (obj), TYPE_U3_AGP_HOST_BRIDGE)
typedef struct UNINState {
PCIHostState parent_obj;
MemoryRegion pci_mmio;
MemoryRegion pci_hole;
} UNINState;
static int pci_unin_map_irq(PCIDevice *pci_dev, int irq_num)
{
return (irq_num + (pci_dev->devfn >> 3)) & 3;
}
static void pci_unin_set_irq(void *opaque, int irq_num, int level)
{
qemu_irq *pic = opaque;
UNIN_DPRINTF("%s: setting INT %d = %d\n", __func__,
unin_irq_line[irq_num], level);
qemu_set_irq(pic[unin_irq_line[irq_num]], level);
}
static uint32_t unin_get_config_reg(uint32_t reg, uint32_t addr)
{
uint32_t retval;
if (reg & (1u << 31)) {
/* XXX OpenBIOS compatibility hack */
retval = reg | (addr & 3);
} else if (reg & 1) {
/* CFA1 style */
retval = (reg & ~7u) | (addr & 7);
} else {
uint32_t slot, func;
/* Grab CFA0 style values */
slot = ctz32(reg & 0xfffff800);
if (slot == 32) {
slot = -1; /* XXX: should this be 0? */
}
func = (reg >> 8) & 7;
/* ... and then convert them to x86 format */
/* config pointer */
retval = (reg & (0xff - 7)) | (addr & 7);
/* slot */
retval |= slot << 11;
/* fn */
retval |= func << 8;
}
UNIN_DPRINTF("Converted config space accessor %08x/%08x -> %08x\n",
reg, addr, retval);
return retval;
}
static void unin_data_write(void *opaque, hwaddr addr,
uint64_t val, unsigned len)
{
UNINState *s = opaque;
PCIHostState *phb = PCI_HOST_BRIDGE(s);
UNIN_DPRINTF("write addr " TARGET_FMT_plx " len %d val %"PRIx64"\n",
addr, len, val);
pci_data_write(phb->bus,
unin_get_config_reg(phb->config_reg, addr),
val, len);
}
static uint64_t unin_data_read(void *opaque, hwaddr addr,
unsigned len)
{
UNINState *s = opaque;
PCIHostState *phb = PCI_HOST_BRIDGE(s);
uint32_t val;
val = pci_data_read(phb->bus,
unin_get_config_reg(phb->config_reg, addr),
len);
UNIN_DPRINTF("read addr " TARGET_FMT_plx " len %d val %x\n",
addr, len, val);
return val;
}
static const MemoryRegionOps unin_data_ops = {
.read = unin_data_read,
.write = unin_data_write,
.endianness = DEVICE_LITTLE_ENDIAN,
};
static int pci_unin_main_init_device(SysBusDevice *dev)
{
PCIHostState *h;
/* Use values found on a real PowerMac */
/* Uninorth main bus */
h = PCI_HOST_BRIDGE(dev);
memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_le_ops,
dev, "pci-conf-idx", 0x1000);
memory_region_init_io(&h->data_mem, OBJECT(h), &unin_data_ops, dev,
"pci-conf-data", 0x1000);
sysbus_init_mmio(dev, &h->conf_mem);
sysbus_init_mmio(dev, &h->data_mem);
return 0;
}
static int pci_u3_agp_init_device(SysBusDevice *dev)
{
PCIHostState *h;
/* Uninorth U3 AGP bus */
h = PCI_HOST_BRIDGE(dev);
memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_le_ops,
dev, "pci-conf-idx", 0x1000);
memory_region_init_io(&h->data_mem, OBJECT(h), &unin_data_ops, dev,
"pci-conf-data", 0x1000);
sysbus_init_mmio(dev, &h->conf_mem);
sysbus_init_mmio(dev, &h->data_mem);
return 0;
}
static int pci_unin_agp_init_device(SysBusDevice *dev)
{
PCIHostState *h;
/* Uninorth AGP bus */
h = PCI_HOST_BRIDGE(dev);
memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_le_ops,
dev, "pci-conf-idx", 0x1000);
memory_region_init_io(&h->data_mem, OBJECT(h), &pci_host_data_le_ops,
dev, "pci-conf-data", 0x1000);
sysbus_init_mmio(dev, &h->conf_mem);
sysbus_init_mmio(dev, &h->data_mem);
return 0;
}
static int pci_unin_internal_init_device(SysBusDevice *dev)
{
PCIHostState *h;
/* Uninorth internal bus */
h = PCI_HOST_BRIDGE(dev);
memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_le_ops,
dev, "pci-conf-idx", 0x1000);
memory_region_init_io(&h->data_mem, OBJECT(h), &pci_host_data_le_ops,
dev, "pci-conf-data", 0x1000);
sysbus_init_mmio(dev, &h->conf_mem);
sysbus_init_mmio(dev, &h->data_mem);
return 0;
}
PCIBus *pci_pmac_init(qemu_irq *pic,
MemoryRegion *address_space_mem,
MemoryRegion *address_space_io)
{
DeviceState *dev;
SysBusDevice *s;
PCIHostState *h;
UNINState *d;
/* Use values found on a real PowerMac */
/* Uninorth main bus */
dev = qdev_create(NULL, TYPE_UNI_NORTH_PCI_HOST_BRIDGE);
qdev_init_nofail(dev);
s = SYS_BUS_DEVICE(dev);
h = PCI_HOST_BRIDGE(s);
d = UNI_NORTH_PCI_HOST_BRIDGE(dev);
memory_region_init(&d->pci_mmio, OBJECT(d), "pci-mmio", 0x100000000ULL);
memory_region_init_alias(&d->pci_hole, OBJECT(d), "pci-hole", &d->pci_mmio,
0x80000000ULL, 0x10000000ULL);
memory_region_add_subregion(address_space_mem, 0x80000000ULL,
&d->pci_hole);
h->bus = pci_register_bus(dev, NULL,
pci_unin_set_irq, pci_unin_map_irq,
pic,
&d->pci_mmio,
address_space_io,
PCI_DEVFN(11, 0), 4, TYPE_PCI_BUS);
#if 0
pci_create_simple(h->bus, PCI_DEVFN(11, 0), "uni-north");
#endif
sysbus_mmio_map(s, 0, 0xf2800000);
sysbus_mmio_map(s, 1, 0xf2c00000);
/* DEC 21154 bridge */
#if 0
/* XXX: not activated as PPC BIOS doesn't handle multiple buses properly */
pci_create_simple(h->bus, PCI_DEVFN(12, 0), "dec-21154");
#endif
/* Uninorth AGP bus */
pci_create_simple(h->bus, PCI_DEVFN(11, 0), "uni-north-agp");
dev = qdev_create(NULL, TYPE_UNI_NORTH_AGP_HOST_BRIDGE);
qdev_init_nofail(dev);
s = SYS_BUS_DEVICE(dev);
sysbus_mmio_map(s, 0, 0xf0800000);
sysbus_mmio_map(s, 1, 0xf0c00000);
/* Uninorth internal bus */
#if 0
/* XXX: not needed for now */
pci_create_simple(h->bus, PCI_DEVFN(14, 0),
"uni-north-internal-pci");
dev = qdev_create(NULL, TYPE_UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE);
qdev_init_nofail(dev);
s = SYS_BUS_DEVICE(dev);
sysbus_mmio_map(s, 0, 0xf4800000);
sysbus_mmio_map(s, 1, 0xf4c00000);
#endif
return h->bus;
}
PCIBus *pci_pmac_u3_init(qemu_irq *pic,
MemoryRegion *address_space_mem,
MemoryRegion *address_space_io)
{
DeviceState *dev;
SysBusDevice *s;
PCIHostState *h;
UNINState *d;
/* Uninorth AGP bus */
dev = qdev_create(NULL, TYPE_U3_AGP_HOST_BRIDGE);
qdev_init_nofail(dev);
s = SYS_BUS_DEVICE(dev);
h = PCI_HOST_BRIDGE(dev);
d = U3_AGP_HOST_BRIDGE(dev);
memory_region_init(&d->pci_mmio, OBJECT(d), "pci-mmio", 0x100000000ULL);
memory_region_init_alias(&d->pci_hole, OBJECT(d), "pci-hole", &d->pci_mmio,
0x80000000ULL, 0x70000000ULL);
memory_region_add_subregion(address_space_mem, 0x80000000ULL,
&d->pci_hole);
h->bus = pci_register_bus(dev, NULL,
pci_unin_set_irq, pci_unin_map_irq,
pic,
&d->pci_mmio,
address_space_io,
PCI_DEVFN(11, 0), 4, TYPE_PCI_BUS);
sysbus_mmio_map(s, 0, 0xf0800000);
sysbus_mmio_map(s, 1, 0xf0c00000);
pci_create_simple(h->bus, 11 << 3, "u3-agp");
return h->bus;
}
static void unin_main_pci_host_realize(PCIDevice *d, Error **errp)
{
d->config[0x0C] = 0x08; // cache_line_size
d->config[0x0D] = 0x10; // latency_timer
d->config[0x34] = 0x00; // capabilities_pointer
}
static void unin_agp_pci_host_realize(PCIDevice *d, Error **errp)
{
d->config[0x0C] = 0x08; // cache_line_size
d->config[0x0D] = 0x10; // latency_timer
// d->config[0x34] = 0x80; // capabilities_pointer
/*
* Set kMacRISCPCIAddressSelect (0x48) register to indicate PCI
* memory space with base 0x80000000, size 0x10000000 for Apple's
* AppleMacRiscPCI driver
*/
d->config[0x48] = 0x0;
d->config[0x49] = 0x0;
d->config[0x4a] = 0x0;
d->config[0x4b] = 0x1;
}
static void u3_agp_pci_host_realize(PCIDevice *d, Error **errp)
{
/* cache line size */
d->config[0x0C] = 0x08;
/* latency timer */
d->config[0x0D] = 0x10;
}
static void unin_internal_pci_host_realize(PCIDevice *d, Error **errp)
{
d->config[0x0C] = 0x08; // cache_line_size
d->config[0x0D] = 0x10; // latency_timer
d->config[0x34] = 0x00; // capabilities_pointer
}
static void unin_main_pci_host_class_init(ObjectClass *klass, void *data)
{
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
DeviceClass *dc = DEVICE_CLASS(klass);
k->realize = unin_main_pci_host_realize;
k->vendor_id = PCI_VENDOR_ID_APPLE;
k->device_id = PCI_DEVICE_ID_APPLE_UNI_N_PCI;
k->revision = 0x00;
k->class_id = PCI_CLASS_BRIDGE_HOST;
/*
* 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 unin_main_pci_host_info = {
.name = "uni-north-pci",
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(PCIDevice),
.class_init = unin_main_pci_host_class_init,
};
static void u3_agp_pci_host_class_init(ObjectClass *klass, void *data)
{
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
DeviceClass *dc = DEVICE_CLASS(klass);
k->realize = u3_agp_pci_host_realize;
k->vendor_id = PCI_VENDOR_ID_APPLE;
k->device_id = PCI_DEVICE_ID_APPLE_U3_AGP;
k->revision = 0x00;
k->class_id = PCI_CLASS_BRIDGE_HOST;
/*
* 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 u3_agp_pci_host_info = {
.name = "u3-agp",
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(PCIDevice),
.class_init = u3_agp_pci_host_class_init,
};
static void unin_agp_pci_host_class_init(ObjectClass *klass, void *data)
{
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
DeviceClass *dc = DEVICE_CLASS(klass);
k->realize = unin_agp_pci_host_realize;
k->vendor_id = PCI_VENDOR_ID_APPLE;
k->device_id = PCI_DEVICE_ID_APPLE_UNI_N_AGP;
k->revision = 0x00;
k->class_id = PCI_CLASS_BRIDGE_HOST;
/*
* 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 unin_agp_pci_host_info = {
.name = "uni-north-agp",
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(PCIDevice),
.class_init = unin_agp_pci_host_class_init,
};
static void unin_internal_pci_host_class_init(ObjectClass *klass, void *data)
{
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
DeviceClass *dc = DEVICE_CLASS(klass);
k->realize = unin_internal_pci_host_realize;
k->vendor_id = PCI_VENDOR_ID_APPLE;
k->device_id = PCI_DEVICE_ID_APPLE_UNI_N_I_PCI;
k->revision = 0x00;
k->class_id = PCI_CLASS_BRIDGE_HOST;
/*
* 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 unin_internal_pci_host_info = {
.name = "uni-north-internal-pci",
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(PCIDevice),
.class_init = unin_internal_pci_host_class_init,
};
static void pci_unin_main_class_init(ObjectClass *klass, void *data)
{
SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
DeviceClass *dc = DEVICE_CLASS(klass);
sbc->init = pci_unin_main_init_device;
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
}
static const TypeInfo pci_unin_main_info = {
.name = TYPE_UNI_NORTH_PCI_HOST_BRIDGE,
.parent = TYPE_PCI_HOST_BRIDGE,
.instance_size = sizeof(UNINState),
.class_init = pci_unin_main_class_init,
};
static void pci_u3_agp_class_init(ObjectClass *klass, void *data)
{
SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
DeviceClass *dc = DEVICE_CLASS(klass);
sbc->init = pci_u3_agp_init_device;
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
}
static const TypeInfo pci_u3_agp_info = {
.name = TYPE_U3_AGP_HOST_BRIDGE,
.parent = TYPE_PCI_HOST_BRIDGE,
.instance_size = sizeof(UNINState),
.class_init = pci_u3_agp_class_init,
};
static void pci_unin_agp_class_init(ObjectClass *klass, void *data)
{
SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
DeviceClass *dc = DEVICE_CLASS(klass);
sbc->init = pci_unin_agp_init_device;
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
}
static const TypeInfo pci_unin_agp_info = {
.name = TYPE_UNI_NORTH_AGP_HOST_BRIDGE,
.parent = TYPE_PCI_HOST_BRIDGE,
.instance_size = sizeof(UNINState),
.class_init = pci_unin_agp_class_init,
};
static void pci_unin_internal_class_init(ObjectClass *klass, void *data)
{
SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
DeviceClass *dc = DEVICE_CLASS(klass);
sbc->init = pci_unin_internal_init_device;
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
}
static const TypeInfo pci_unin_internal_info = {
.name = TYPE_UNI_NORTH_INTERNAL_PCI_HOST_BRIDGE,
.parent = TYPE_PCI_HOST_BRIDGE,
.instance_size = sizeof(UNINState),
.class_init = pci_unin_internal_class_init,
};
static void unin_register_types(void)
{
type_register_static(&unin_main_pci_host_info);
type_register_static(&u3_agp_pci_host_info);
type_register_static(&unin_agp_pci_host_info);
type_register_static(&unin_internal_pci_host_info);
type_register_static(&pci_unin_main_info);
type_register_static(&pci_u3_agp_info);
type_register_static(&pci_unin_agp_info);
type_register_static(&pci_unin_internal_info);
}
type_init(unin_register_types)
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