[07/11] mac_oldworld: use object link to pass heathrow PIC object to macio

Also switch macio_oldworld_realize() over to use it rather than using the pic_mem
memory region directly.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
---
 hw/misc/macio/macio.c         | 14 ++++++++++----
 hw/ppc/mac_oldworld.c         |  8 +++++---
 include/hw/misc/macio/macio.h |  2 ++
 3 files changed, 17 insertions(+), 7 deletions(-)

On Mon, Feb 19, 2018 at 06:19:18PM +0000, Mark Cave-Ayland wrote:
> Also switch macio_oldworld_realize() over to use it rather than using the pic_mem
> memory region directly.
> 
> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>

> ---
>  hw/misc/macio/macio.c         | 14 ++++++++++----
>  hw/ppc/mac_oldworld.c         |  8 +++++---
>  include/hw/misc/macio/macio.h |  2 ++
>  3 files changed, 17 insertions(+), 7 deletions(-)
> 
> diff --git a/hw/misc/macio/macio.c b/hw/misc/macio/macio.c
> index 4e502ede2e..d4c1d190c4 100644
> --- a/hw/misc/macio/macio.c
> +++ b/hw/misc/macio/macio.c
> @@ -31,6 +31,7 @@
>  #include "hw/ppc/mac_dbdma.h"
>  #include "hw/char/escc.h"
>  #include "hw/misc/macio/macio.h"
> +#include "hw/intc/heathrow_pic.h"
>  
>  /*
>   * The mac-io has two interfaces to the ESCC. One is called "escc-legacy",
> @@ -167,10 +168,10 @@ static void macio_oldworld_realize(PCIDevice *d, Error **errp)
>                                  sysbus_mmio_get_region(sysbus_dev, 0));
>      pmac_format_nvram_partition(&os->nvram, os->nvram.size);
>  
> -    if (s->pic_mem) {
> -        /* Heathrow PIC */
> -        memory_region_add_subregion(&s->bar, 0x00000, s->pic_mem);
> -    }
> +    /* Heathrow PIC */
> +    sysbus_dev = SYS_BUS_DEVICE(os->pic);
> +    memory_region_add_subregion(&s->bar, 0x0,
> +                                sysbus_mmio_get_region(sysbus_dev, 0));
>  
>      /* IDE buses */
>      for (i = 0; i < ARRAY_SIZE(os->ide); i++) {
> @@ -208,6 +209,11 @@ static void macio_oldworld_init(Object *obj)
>  
>      qdev_init_gpio_out(DEVICE(obj), os->irqs, ARRAY_SIZE(os->irqs));
>  
> +    object_property_add_link(obj, "pic", TYPE_HEATHROW,
> +                             (Object **) &os->pic,
> +                             qdev_prop_allow_set_link_before_realize,
> +                             0, NULL);
> +
>      object_initialize(&os->nvram, sizeof(os->nvram), TYPE_MACIO_NVRAM);
>      dev = DEVICE(&os->nvram);
>      qdev_prop_set_uint32(dev, "size", 0x2000);
> diff --git a/hw/ppc/mac_oldworld.c b/hw/ppc/mac_oldworld.c
> index 5903ff47d3..3ac5b19073 100644
> --- a/hw/ppc/mac_oldworld.c
> +++ b/hw/ppc/mac_oldworld.c
> @@ -93,7 +93,7 @@ static void ppc_heathrow_init(MachineState *machine)
>      uint32_t kernel_base, initrd_base, cmdline_base = 0;
>      int32_t kernel_size, initrd_size;
>      PCIBus *pci_bus;
> -    PCIDevice *macio;
> +    OldWorldMacIOState *macio;
>      MACIOIDEState *macio_ide;
>      DeviceState *dev, *pic_dev;
>      SysBusDevice *sbd;
> @@ -271,7 +271,7 @@ static void ppc_heathrow_init(MachineState *machine)
>      ide_drive_get(hd, ARRAY_SIZE(hd));
>  
>      /* MacIO */
> -    macio = pci_create(pci_bus, -1, TYPE_OLDWORLD_MACIO);
> +    macio = OLDWORLD_MACIO(pci_create(pci_bus, -1, TYPE_OLDWORLD_MACIO));
>      dev = DEVICE(macio);
>      qdev_connect_gpio_out(dev, 0, pic[0x12]); /* CUDA */
>      qdev_connect_gpio_out(dev, 1, pic[0x10]); /* ESCC-B */
> @@ -281,8 +281,10 @@ static void ppc_heathrow_init(MachineState *machine)
>      qdev_connect_gpio_out(dev, 5, pic[0x0E]); /* IDE-1 */
>      qdev_connect_gpio_out(dev, 6, pic[0x03]); /* IDE-1 DMA */
>      qdev_prop_set_uint64(dev, "frequency", tbfreq);
> +    object_property_set_link(OBJECT(macio), OBJECT(pic_dev), "pic",
> +                             &error_abort);
>      sbd = SYS_BUS_DEVICE(pic_dev);
> -    macio_init(macio, sysbus_mmio_get_region(sbd, 0));
> +    macio_init(PCI_DEVICE(macio), sysbus_mmio_get_region(sbd, 0));
>  
>      macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio),
>                                                          "ide[0]"));
> diff --git a/include/hw/misc/macio/macio.h b/include/hw/misc/macio/macio.h
> index e1e249f898..843c114c07 100644
> --- a/include/hw/misc/macio/macio.h
> +++ b/include/hw/misc/macio/macio.h
> @@ -26,6 +26,7 @@
>  #ifndef MACIO_H
>  #define MACIO_H
>  
> +#include "hw/intc/heathrow_pic.h"
>  #include "hw/misc/macio/cuda.h"
>  #include "hw/ppc/mac_dbdma.h"
>  
> @@ -54,6 +55,7 @@ typedef struct OldWorldMacIOState {
>      MacIOState parent_obj;
>      /*< public >*/
>  
> +    HeathrowState *pic;
>      qemu_irq irqs[7];
>  
>      MacIONVRAMState nvram;