Re: [Qemu-devel] [PATCH v4 01/10] add device_legacy_reset function to prepare for reset api change

[David Gibson <david@gibson.dropbear.id.au>]

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On Wed, Aug 21, 2019 at 06:33:32PM +0200, Damien Hedde wrote:
> Provide a temporary device_legacy_reset function doing what
> device_reset does to prepare for the transition with Resettable
> API.
> 
> All occurrence of device_reset in the code tree are also replaced
> by device_legacy_reset.
> 
> The new resettable API has different prototype and semantics
> (resetting child buses as well as the specified device). Subsequent
> commits will make the changeover for each call site individually; once
> that is complete device_legacy_reset() will be removed.
> 
> Signed-off-by: Damien Hedde <damien.hedde@greensocs.com>
> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

ppc parts
Acked-by: David Gibson <david@gibson.dropbear.id.au>

> ---
> Cc: Gerd Hoffmann <kraxel@redhat.com>
> Cc: Paolo Bonzini <pbonzini@redhat.com>
> Cc: "Daniel P. Berrangé" <berrange@redhat.com>
> Cc: Eduardo Habkost <ehabkost@redhat.com>
> Cc: Richard Henderson <rth@twiddle.net>
> Cc: "Michael S. Tsirkin" <mst@redhat.com>
> Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
> Cc: John Snow <jsnow@redhat.com>
> Cc: "Cédric Le Goater" <clg@kaod.org>
> Cc: Collin Walling <walling@linux.ibm.com>
> Cc: Cornelia Huck <cohuck@redhat.com>
> Cc: David Hildenbrand <david@redhat.com>
> Cc: Halil Pasic <pasic@linux.ibm.com>
> Cc: Christian Borntraeger <borntraeger@de.ibm.com>
> Cc: Dmitry Fleytman <dmitry.fleytman@gmail.com>
> Cc: Fam Zheng <fam@euphon.net>
> Cc: qemu-block@nongnu.org
> Cc: qemu-ppc@nongnu.org
> Cc: qemu-s390x@nongnu.org
> Cc: qemu-arm@nongnu.org
> ---
>  hw/audio/intel-hda.c     | 2 +-
>  hw/core/qdev.c           | 6 +++---
>  hw/hyperv/hyperv.c       | 2 +-
>  hw/i386/pc.c             | 2 +-
>  hw/ide/microdrive.c      | 8 ++++----
>  hw/intc/spapr_xive.c     | 2 +-
>  hw/ppc/pnv_psi.c         | 2 +-
>  hw/ppc/spapr_pci.c       | 2 +-
>  hw/ppc/spapr_vio.c       | 2 +-
>  hw/s390x/s390-pci-inst.c | 2 +-
>  hw/scsi/vmw_pvscsi.c     | 2 +-
>  hw/sd/omap_mmc.c         | 2 +-
>  hw/sd/pl181.c            | 2 +-
>  include/hw/qdev-core.h   | 4 ++--
>  14 files changed, 20 insertions(+), 20 deletions(-)
> 
> diff --git a/hw/audio/intel-hda.c b/hw/audio/intel-hda.c
> index 6ecd383540..27b71c57cf 100644
> --- a/hw/audio/intel-hda.c
> +++ b/hw/audio/intel-hda.c
> @@ -1087,7 +1087,7 @@ static void intel_hda_reset(DeviceState *dev)
>      QTAILQ_FOREACH(kid, &d->codecs.qbus.children, sibling) {
>          DeviceState *qdev = kid->child;
>          cdev = HDA_CODEC_DEVICE(qdev);
> -        device_reset(DEVICE(cdev));
> +        device_legacy_reset(DEVICE(cdev));
>          d->state_sts |= (1 << cdev->cad);
>      }
>      intel_hda_update_irq(d);
> diff --git a/hw/core/qdev.c b/hw/core/qdev.c
> index 60d66c2f39..a95d4fa87d 100644
> --- a/hw/core/qdev.c
> +++ b/hw/core/qdev.c
> @@ -257,7 +257,7 @@ HotplugHandler *qdev_get_hotplug_handler(DeviceState *dev)
>  
>  static int qdev_reset_one(DeviceState *dev, void *opaque)
>  {
> -    device_reset(dev);
> +    device_legacy_reset(dev);
>  
>      return 0;
>  }
> @@ -865,7 +865,7 @@ static void device_set_realized(Object *obj, bool value, Error **errp)
>              }
>          }
>          if (dev->hotplugged) {
> -            device_reset(dev);
> +            device_legacy_reset(dev);
>          }
>          dev->pending_deleted_event = false;
>  
> @@ -1087,7 +1087,7 @@ void device_class_set_parent_unrealize(DeviceClass *dc,
>      dc->unrealize = dev_unrealize;
>  }
>  
> -void device_reset(DeviceState *dev)
> +void device_legacy_reset(DeviceState *dev)
>  {
>      DeviceClass *klass = DEVICE_GET_CLASS(dev);
>  
> diff --git a/hw/hyperv/hyperv.c b/hw/hyperv/hyperv.c
> index 6ebf31c310..cd9db3cb5c 100644
> --- a/hw/hyperv/hyperv.c
> +++ b/hw/hyperv/hyperv.c
> @@ -140,7 +140,7 @@ void hyperv_synic_reset(CPUState *cs)
>      SynICState *synic = get_synic(cs);
>  
>      if (synic) {
> -        device_reset(DEVICE(synic));
> +        device_legacy_reset(DEVICE(synic));
>      }
>  }
>  
> diff --git a/hw/i386/pc.c b/hw/i386/pc.c
> index 3ab4bcb3ca..f33a8de42f 100644
> --- a/hw/i386/pc.c
> +++ b/hw/i386/pc.c
> @@ -2826,7 +2826,7 @@ static void pc_machine_reset(MachineState *machine)
>          cpu = X86_CPU(cs);
>  
>          if (cpu->apic_state) {
> -            device_reset(cpu->apic_state);
> +            device_legacy_reset(cpu->apic_state);
>          }
>      }
>  }
> diff --git a/hw/ide/microdrive.c b/hw/ide/microdrive.c
> index b0272ea14b..6b30e36ed8 100644
> --- a/hw/ide/microdrive.c
> +++ b/hw/ide/microdrive.c
> @@ -173,7 +173,7 @@ static void md_attr_write(PCMCIACardState *card, uint32_t at, uint8_t value)
>      case 0x00:	/* Configuration Option Register */
>          s->opt = value & 0xcf;
>          if (value & OPT_SRESET) {
> -            device_reset(DEVICE(s));
> +            device_legacy_reset(DEVICE(s));
>          }
>          md_interrupt_update(s);
>          break;
> @@ -316,7 +316,7 @@ static void md_common_write(PCMCIACardState *card, uint32_t at, uint16_t value)
>      case 0xe:	/* Device Control */
>          s->ctrl = value;
>          if (value & CTRL_SRST) {
> -            device_reset(DEVICE(s));
> +            device_legacy_reset(DEVICE(s));
>          }
>          md_interrupt_update(s);
>          break;
> @@ -541,7 +541,7 @@ static int dscm1xxxx_attach(PCMCIACardState *card)
>      md->attr_base = pcc->cis[0x74] | (pcc->cis[0x76] << 8);
>      md->io_base = 0x0;
>  
> -    device_reset(DEVICE(md));
> +    device_legacy_reset(DEVICE(md));
>      md_interrupt_update(md);
>  
>      return 0;
> @@ -551,7 +551,7 @@ static int dscm1xxxx_detach(PCMCIACardState *card)
>  {
>      MicroDriveState *md = MICRODRIVE(card);
>  
> -    device_reset(DEVICE(md));
> +    device_legacy_reset(DEVICE(md));
>      return 0;
>  }
>  
> diff --git a/hw/intc/spapr_xive.c b/hw/intc/spapr_xive.c
> index aad981cb78..a0f1787ee0 100644
> --- a/hw/intc/spapr_xive.c
> +++ b/hw/intc/spapr_xive.c
> @@ -1514,7 +1514,7 @@ static target_ulong h_int_reset(PowerPCCPU *cpu,
>          return H_PARAMETER;
>      }
>  
> -    device_reset(DEVICE(xive));
> +    device_legacy_reset(DEVICE(xive));
>  
>      if (kvm_irqchip_in_kernel()) {
>          Error *local_err = NULL;
> diff --git a/hw/ppc/pnv_psi.c b/hw/ppc/pnv_psi.c
> index 88ba8e7b9b..bfdc30d4e1 100644
> --- a/hw/ppc/pnv_psi.c
> +++ b/hw/ppc/pnv_psi.c
> @@ -705,7 +705,7 @@ static void pnv_psi_p9_mmio_write(void *opaque, hwaddr addr,
>          break;
>      case PSIHB9_INTERRUPT_CONTROL:
>          if (val & PSIHB9_IRQ_RESET) {
> -            device_reset(DEVICE(&psi9->source));
> +            device_legacy_reset(DEVICE(&psi9->source));
>          }
>          psi->regs[reg] = val;
>          break;
> diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c
> index bf31fd854c..f4c918be8b 100644
> --- a/hw/ppc/spapr_pci.c
> +++ b/hw/ppc/spapr_pci.c
> @@ -2031,7 +2031,7 @@ static int spapr_phb_children_reset(Object *child, void *opaque)
>      DeviceState *dev = (DeviceState *) object_dynamic_cast(child, TYPE_DEVICE);
>  
>      if (dev) {
> -        device_reset(dev);
> +        device_legacy_reset(dev);
>      }
>  
>      return 0;
> diff --git a/hw/ppc/spapr_vio.c b/hw/ppc/spapr_vio.c
> index 0803649658..ff7ee4d822 100644
> --- a/hw/ppc/spapr_vio.c
> +++ b/hw/ppc/spapr_vio.c
> @@ -305,7 +305,7 @@ int spapr_vio_send_crq(SpaprVioDevice *dev, uint8_t *crq)
>  static void spapr_vio_quiesce_one(SpaprVioDevice *dev)
>  {
>      if (dev->tcet) {
> -        device_reset(DEVICE(dev->tcet));
> +        device_legacy_reset(DEVICE(dev->tcet));
>      }
>      free_crq(dev);
>  }
> diff --git a/hw/s390x/s390-pci-inst.c b/hw/s390x/s390-pci-inst.c
> index 00235148be..93cda37c27 100644
> --- a/hw/s390x/s390-pci-inst.c
> +++ b/hw/s390x/s390-pci-inst.c
> @@ -242,7 +242,7 @@ int clp_service_call(S390CPU *cpu, uint8_t r2, uintptr_t ra)
>                  stw_p(&ressetpci->hdr.rsp, CLP_RC_SETPCIFN_FHOP);
>                  goto out;
>              }
> -            device_reset(DEVICE(pbdev));
> +            device_legacy_reset(DEVICE(pbdev));
>              pbdev->fh &= ~FH_MASK_ENABLE;
>              pbdev->state = ZPCI_FS_DISABLED;
>              stl_p(&ressetpci->fh, pbdev->fh);
> diff --git a/hw/scsi/vmw_pvscsi.c b/hw/scsi/vmw_pvscsi.c
> index 452a3b63b2..7baab1532f 100644
> --- a/hw/scsi/vmw_pvscsi.c
> +++ b/hw/scsi/vmw_pvscsi.c
> @@ -838,7 +838,7 @@ pvscsi_on_cmd_reset_device(PVSCSIState *s)
>  
>      if (sdev != NULL) {
>          s->resetting++;
> -        device_reset(&sdev->qdev);
> +        device_legacy_reset(&sdev->qdev);
>          s->resetting--;
>          return PVSCSI_COMMAND_PROCESSING_SUCCEEDED;
>      }
> diff --git a/hw/sd/omap_mmc.c b/hw/sd/omap_mmc.c
> index c6e516b611..4088a8a80b 100644
> --- a/hw/sd/omap_mmc.c
> +++ b/hw/sd/omap_mmc.c
> @@ -318,7 +318,7 @@ void omap_mmc_reset(struct omap_mmc_s *host)
>       * into any bus, and we must reset it manually. When omap_mmc is
>       * QOMified this must move into the QOM reset function.
>       */
> -    device_reset(DEVICE(host->card));
> +    device_legacy_reset(DEVICE(host->card));
>  }
>  
>  static uint64_t omap_mmc_read(void *opaque, hwaddr offset,
> diff --git a/hw/sd/pl181.c b/hw/sd/pl181.c
> index 8033fe455d..2b3776a6a0 100644
> --- a/hw/sd/pl181.c
> +++ b/hw/sd/pl181.c
> @@ -482,7 +482,7 @@ static void pl181_reset(DeviceState *d)
>      /* Since we're still using the legacy SD API the card is not plugged
>       * into any bus, and we must reset it manually.
>       */
> -    device_reset(DEVICE(s->card));
> +    device_legacy_reset(DEVICE(s->card));
>  }
>  
>  static void pl181_init(Object *obj)
> diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h
> index de70b7a19a..09e6dfd664 100644
> --- a/include/hw/qdev-core.h
> +++ b/include/hw/qdev-core.h
> @@ -406,11 +406,11 @@ char *qdev_get_own_fw_dev_path_from_handler(BusState *bus, DeviceState *dev);
>  void qdev_machine_init(void);
>  
>  /**
> - * @device_reset
> + * device_legacy_reset:
>   *
>   * Reset a single device (by calling the reset method).
>   */
> -void device_reset(DeviceState *dev);
> +void device_legacy_reset(DeviceState *dev);
>  
>  void device_class_set_parent_reset(DeviceClass *dc,
>                                     DeviceReset dev_reset,

-- 
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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