Re: [Qemu-devel] [PATCH 19/19] mac_newworld: move wiring of macio IRQs to macio_newworld_realize()

[David Gibson]

On Tue, Mar 06, 2018 at 08:31:03PM +0000, Mark Cave-Ayland wrote:
> Since the macio device has a link to the PIC device, we can now wire up the
> IRQs directly via qdev GPIOs rather than having to use an intermediate array.
> 
> Signed-off-by: Mark Cave-Ayland <address@hidden>

Reviewed-by: David Gibson <address@hidden>

> ---
>  hw/misc/macio/macio.c         | 37 ++++++++++++++++++++++---------------
>  hw/ppc/mac_newworld.c         | 14 --------------
>  include/hw/misc/macio/macio.h |  1 -
>  3 files changed, 22 insertions(+), 30 deletions(-)
> 
> diff --git a/hw/misc/macio/macio.c b/hw/misc/macio/macio.c
> index af1bd46b4b..1aa7bb7c89 100644
> --- a/hw/misc/macio/macio.c
> +++ b/hw/misc/macio/macio.c
> @@ -265,11 +265,10 @@ static void macio_newworld_realize(PCIDevice *d, Error 
> **errp)
>  {
>      MacIOState *s = MACIO(d);
>      NewWorldMacIOState *ns = NEWWORLD_MACIO(d);
> +    DeviceState *pic_dev = DEVICE(ns->pic);
>      Error *err = NULL;
>      SysBusDevice *sysbus_dev;
>      MemoryRegion *timer_memory = NULL;
> -    int i;
> -    int cur_irq = 0;
>  
>      macio_common_realize(d, &err);
>      if (err) {
> @@ -278,11 +277,14 @@ static void macio_newworld_realize(PCIDevice *d, Error 
> **errp)
>      }
>  
>      sysbus_dev = SYS_BUS_DEVICE(&s->cuda);
> -    sysbus_connect_irq(sysbus_dev, 0, ns->irqs[cur_irq++]);
> +    sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev,
> +                                                       NEWWORLD_CUDA_IRQ));
>  
>      sysbus_dev = SYS_BUS_DEVICE(&s->escc);
> -    sysbus_connect_irq(sysbus_dev, 0, ns->irqs[cur_irq++]);
> -    sysbus_connect_irq(sysbus_dev, 1, ns->irqs[cur_irq++]);
> +    sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev,
> +                                                       NEWWORLD_ESCCB_IRQ));
> +    sysbus_connect_irq(sysbus_dev, 1, qdev_get_gpio_in(pic_dev,
> +                                                       NEWWORLD_ESCCA_IRQ));
>  
>      /* OpenPIC */
>      sysbus_dev = SYS_BUS_DEVICE(ns->pic);
> @@ -290,15 +292,22 @@ static void macio_newworld_realize(PCIDevice *d, Error 
> **errp)
>                                  sysbus_mmio_get_region(sysbus_dev, 0));
>  
>      /* IDE buses */
> -    for (i = 0; i < ARRAY_SIZE(ns->ide); i++) {
> -        qemu_irq irq0 = ns->irqs[cur_irq++];
> -        qemu_irq irq1 = ns->irqs[cur_irq++];
> +    macio_realize_ide(s, &ns->ide[0],
> +                      qdev_get_gpio_in(pic_dev, NEWWORLD_IDE0_IRQ),
> +                      qdev_get_gpio_in(pic_dev, NEWWORLD_IDE0_DMA_IRQ),
> +                      0x16, &err);
> +    if (err) {
> +        error_propagate(errp, err);
> +        return;
> +    }
>  
> -        macio_realize_ide(s, &ns->ide[i], irq0, irq1, 0x16 + (i * 4), &err);
> -        if (err) {
> -            error_propagate(errp, err);
> -            return;
> -        }
> +    macio_realize_ide(s, &ns->ide[1],
> +                      qdev_get_gpio_in(pic_dev, NEWWORLD_IDE1_IRQ),
> +                      qdev_get_gpio_in(pic_dev, NEWWORLD_IDE1_DMA_IRQ),
> +                      0x1a, &err);
> +    if (err) {
> +        error_propagate(errp, err);
> +        return;
>      }
>  
>      /* Timer */
> @@ -314,8 +323,6 @@ static void macio_newworld_init(Object *obj)
>      NewWorldMacIOState *ns = NEWWORLD_MACIO(obj);
>      int i;
>  
> -    qdev_init_gpio_out(DEVICE(obj), ns->irqs, ARRAY_SIZE(ns->irqs));
> -
>      object_property_add_link(obj, "pic", TYPE_OPENPIC,
>                               (Object **) &ns->pic,
>                               qdev_prop_allow_set_link_before_realize,
> diff --git a/hw/ppc/mac_newworld.c b/hw/ppc/mac_newworld.c
> index 3cde507065..ae2ce562a4 100644
> --- a/hw/ppc/mac_newworld.c
> +++ b/hw/ppc/mac_newworld.c
> @@ -376,20 +376,6 @@ static void ppc_core99_init(MachineState *machine)
>      /* MacIO */
>      macio = NEWWORLD_MACIO(pci_create(pci_bus, -1, TYPE_NEWWORLD_MACIO));
>      dev = DEVICE(macio);
> -    qdev_connect_gpio_out(dev, 0,
> -        qdev_get_gpio_in(pic_dev, NEWWORLD_CUDA_IRQ));
> -    qdev_connect_gpio_out(dev, 1,
> -        qdev_get_gpio_in(pic_dev, NEWWORLD_ESCCB_IRQ));
> -    qdev_connect_gpio_out(dev, 2,
> -        qdev_get_gpio_in(pic_dev, NEWWORLD_ESCCA_IRQ));
> -    qdev_connect_gpio_out(dev, 3,
> -        qdev_get_gpio_in(pic_dev, NEWWORLD_IDE0_IRQ));
> -    qdev_connect_gpio_out(dev, 4,
> -        qdev_get_gpio_in(pic_dev, NEWWORLD_IDE0_DMA_IRQ));
> -    qdev_connect_gpio_out(dev, 5,
> -        qdev_get_gpio_in(pic_dev, NEWWORLD_IDE1_IRQ));
> -    qdev_connect_gpio_out(dev, 6,
> -        qdev_get_gpio_in(pic_dev, NEWWORLD_IDE1_DMA_IRQ));
>      qdev_prop_set_uint64(dev, "frequency", tbfreq);
>      object_property_set_link(OBJECT(macio), OBJECT(pic_dev), "pic",
>                               &error_abort);
> diff --git a/include/hw/misc/macio/macio.h b/include/hw/misc/macio/macio.h
> index 4528282b36..e3b9ef48dd 100644
> --- a/include/hw/misc/macio/macio.h
> +++ b/include/hw/misc/macio/macio.h
> @@ -72,7 +72,6 @@ typedef struct NewWorldMacIOState {
>      /*< public >*/
>  
>      OpenPICState *pic;
> -    qemu_irq irqs[7];
>      MACIOIDEState ide[2];
>  } NewWorldMacIOState;
>  

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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