| Message ID | 20200920082018.16135-1-mark.cave-ayland@ilande.co.uk |
|---|---|
| Headers | show |
| Series | QOM minor fixes | expand |
On 9/20/20 10:20 AM, Mark Cave-Ayland wrote: > Store the child objects directly within the sparc32-dma object rather than using > link properties. > > Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> > --- > hw/dma/sparc32_dma.c | 15 +++++++++------ > include/hw/sparc/sparc32_dma.h | 4 ++-- Consider using scripts/git.orderfile to avoid reviewer scrolling :) Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> > 2 files changed, 11 insertions(+), 8 deletions(-) > > diff --git a/hw/dma/sparc32_dma.c b/hw/dma/sparc32_dma.c > index d20a5bc065..b25a212f7a 100644 > --- a/hw/dma/sparc32_dma.c > +++ b/hw/dma/sparc32_dma.c > @@ -379,10 +379,9 @@ static void sparc32_dma_realize(DeviceState *dev, Error **errp) > return; > } > > - espdma = qdev_new(TYPE_SPARC32_ESPDMA_DEVICE); > + espdma = DEVICE(&s->espdma); > object_property_set_link(OBJECT(espdma), "iommu", iommu, &error_abort); > - object_property_add_child(OBJECT(s), "espdma", OBJECT(espdma)); > - sysbus_realize_and_unref(SYS_BUS_DEVICE(espdma), &error_fatal); > + sysbus_realize(SYS_BUS_DEVICE(espdma), &error_fatal); > > esp = DEVICE(object_resolve_path_component(OBJECT(espdma), "esp")); > sbd = SYS_BUS_DEVICE(esp); > @@ -394,10 +393,9 @@ static void sparc32_dma_realize(DeviceState *dev, Error **errp) > memory_region_add_subregion(&s->dmamem, 0x0, > sysbus_mmio_get_region(sbd, 0)); > > - ledma = qdev_new(TYPE_SPARC32_LEDMA_DEVICE); > + ledma = DEVICE(&s->ledma); > object_property_set_link(OBJECT(ledma), "iommu", iommu, &error_abort); > - object_property_add_child(OBJECT(s), "ledma", OBJECT(ledma)); > - sysbus_realize_and_unref(SYS_BUS_DEVICE(ledma), &error_fatal); > + sysbus_realize(SYS_BUS_DEVICE(ledma), &error_fatal); > > lance = DEVICE(object_resolve_path_component(OBJECT(ledma), "lance")); > sbd = SYS_BUS_DEVICE(lance); > @@ -421,6 +419,11 @@ static void sparc32_dma_init(Object *obj) > > memory_region_init(&s->dmamem, OBJECT(s), "dma", DMA_SIZE + DMA_ETH_SIZE); > sysbus_init_mmio(sbd, &s->dmamem); > + > + object_initialize_child(obj, "espdma", &s->espdma, > + TYPE_SPARC32_ESPDMA_DEVICE); > + object_initialize_child(obj, "ledma", &s->ledma, > + TYPE_SPARC32_LEDMA_DEVICE); > } > > static void sparc32_dma_class_init(ObjectClass *klass, void *data) > diff --git a/include/hw/sparc/sparc32_dma.h b/include/hw/sparc/sparc32_dma.h > index a402665a9c..a7b1dd8418 100644 > --- a/include/hw/sparc/sparc32_dma.h > +++ b/include/hw/sparc/sparc32_dma.h > @@ -56,8 +56,8 @@ struct SPARC32DMAState { > > MemoryRegion dmamem; > MemoryRegion ledma_alias; > - ESPDMADeviceState *espdma; > - LEDMADeviceState *ledma; > + ESPDMADeviceState espdma; > + LEDMADeviceState ledma; > }; > > /* sparc32_dma.c */ >
On Sun, 20 Sep 2020, Mark Cave-Ayland wrote: > Instead use qdev_prop_set_chr() to configure the ESCC serial chardevs at the > Mac Old World and New World machine level. > > Also remove the now obsolete comment referring to the use of serial_hd() and > change user_createable to true accordingly. > > Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> > --- > hw/misc/macio/macio.c | 5 +---- > hw/ppc/mac_newworld.c | 6 ++++++ > hw/ppc/mac_oldworld.c | 6 ++++++ > 3 files changed, 13 insertions(+), 4 deletions(-) > > diff --git a/hw/misc/macio/macio.c b/hw/misc/macio/macio.c > index 679722628e..ce641d41fd 100644 > --- a/hw/misc/macio/macio.c > +++ b/hw/misc/macio/macio.c > @@ -109,8 +109,6 @@ static void macio_common_realize(PCIDevice *d, Error **errp) > qdev_prop_set_uint32(DEVICE(&s->escc), "disabled", 0); > qdev_prop_set_uint32(DEVICE(&s->escc), "frequency", ESCC_CLOCK); > qdev_prop_set_uint32(DEVICE(&s->escc), "it_shift", 4); > - qdev_prop_set_chr(DEVICE(&s->escc), "chrA", serial_hd(0)); > - qdev_prop_set_chr(DEVICE(&s->escc), "chrB", serial_hd(1)); > qdev_prop_set_uint32(DEVICE(&s->escc), "chnBtype", escc_serial); > qdev_prop_set_uint32(DEVICE(&s->escc), "chnAtype", escc_serial); > if (!qdev_realize(DEVICE(&s->escc), BUS(&s->macio_bus), errp)) { > @@ -458,8 +456,7 @@ static void macio_class_init(ObjectClass *klass, void *data) > k->class_id = PCI_CLASS_OTHERS << 8; > device_class_set_props(dc, macio_properties); > set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); > - /* Reason: Uses serial_hds in macio_instance_init */ > - dc->user_creatable = false; > + dc->user_creatable = true; According to a comment in https://git.qemu.org/?p=qemu.git;a=blob;f=hw/core/qdev.c;h=96772a15bd5b76d3ebe27d45ed1f2c1beb7f5386;hb=HEAD#l1135 user_creatable = true is the default and most devices don't set it explicitely so I think you can just remove the line setting it here. Regards, BALATON Zoltan > } > > static const TypeInfo macio_bus_info = { > diff --git a/hw/ppc/mac_newworld.c b/hw/ppc/mac_newworld.c > index e42bd7a626..e59b30e0a7 100644 > --- a/hw/ppc/mac_newworld.c > +++ b/hw/ppc/mac_newworld.c > @@ -123,6 +123,7 @@ static void ppc_core99_init(MachineState *machine) > UNINHostState *uninorth_pci; > PCIBus *pci_bus; > PCIDevice *macio; > + ESCCState *escc; > bool has_pmu, has_adb; > MACIOIDEState *macio_ide; > BusState *adb_bus; > @@ -382,6 +383,11 @@ static void ppc_core99_init(MachineState *machine) > qdev_prop_set_bit(dev, "has-adb", has_adb); > object_property_set_link(OBJECT(macio), "pic", OBJECT(pic_dev), > &error_abort); > + > + escc = ESCC(object_resolve_path_component(OBJECT(macio), "escc")); > + qdev_prop_set_chr(DEVICE(escc), "chrA", serial_hd(0)); > + qdev_prop_set_chr(DEVICE(escc), "chrB", serial_hd(1)); > + > pci_realize_and_unref(macio, pci_bus, &error_fatal); > > /* We only emulate 2 out of 3 IDE controllers for now */ > diff --git a/hw/ppc/mac_oldworld.c b/hw/ppc/mac_oldworld.c > index 7aba040f1b..25ade63ba3 100644 > --- a/hw/ppc/mac_oldworld.c > +++ b/hw/ppc/mac_oldworld.c > @@ -96,6 +96,7 @@ static void ppc_heathrow_init(MachineState *machine) > PCIBus *pci_bus; > PCIDevice *macio; > MACIOIDEState *macio_ide; > + ESCCState *escc; > SysBusDevice *s; > DeviceState *dev, *pic_dev; > BusState *adb_bus; > @@ -283,6 +284,11 @@ static void ppc_heathrow_init(MachineState *machine) > qdev_prop_set_uint64(dev, "frequency", tbfreq); > object_property_set_link(OBJECT(macio), "pic", OBJECT(pic_dev), > &error_abort); > + > + escc = ESCC(object_resolve_path_component(OBJECT(macio), "escc")); > + qdev_prop_set_chr(DEVICE(escc), "chrA", serial_hd(0)); > + qdev_prop_set_chr(DEVICE(escc), "chrB", serial_hd(1)); > + > pci_realize_and_unref(macio, pci_bus, &error_fatal); > > macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio), >
On 20/09/2020 11:52, BALATON Zoltan via wrote: > On Sun, 20 Sep 2020, Mark Cave-Ayland wrote: >> Instead use qdev_prop_set_chr() to configure the ESCC serial chardevs at the >> Mac Old World and New World machine level. >> >> Also remove the now obsolete comment referring to the use of serial_hd() and >> change user_createable to true accordingly. >> >> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> >> --- >> hw/misc/macio/macio.c | 5 +---- >> hw/ppc/mac_newworld.c | 6 ++++++ >> hw/ppc/mac_oldworld.c | 6 ++++++ >> 3 files changed, 13 insertions(+), 4 deletions(-) >> >> diff --git a/hw/misc/macio/macio.c b/hw/misc/macio/macio.c >> index 679722628e..ce641d41fd 100644 >> --- a/hw/misc/macio/macio.c >> +++ b/hw/misc/macio/macio.c >> @@ -109,8 +109,6 @@ static void macio_common_realize(PCIDevice *d, Error **errp) >> qdev_prop_set_uint32(DEVICE(&s->escc), "disabled", 0); >> qdev_prop_set_uint32(DEVICE(&s->escc), "frequency", ESCC_CLOCK); >> qdev_prop_set_uint32(DEVICE(&s->escc), "it_shift", 4); >> - qdev_prop_set_chr(DEVICE(&s->escc), "chrA", serial_hd(0)); >> - qdev_prop_set_chr(DEVICE(&s->escc), "chrB", serial_hd(1)); >> qdev_prop_set_uint32(DEVICE(&s->escc), "chnBtype", escc_serial); >> qdev_prop_set_uint32(DEVICE(&s->escc), "chnAtype", escc_serial); >> if (!qdev_realize(DEVICE(&s->escc), BUS(&s->macio_bus), errp)) { >> @@ -458,8 +456,7 @@ static void macio_class_init(ObjectClass *klass, void *data) >> k->class_id = PCI_CLASS_OTHERS << 8; >> device_class_set_props(dc, macio_properties); >> set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); >> - /* Reason: Uses serial_hds in macio_instance_init */ >> - dc->user_creatable = false; >> + dc->user_creatable = true; > > According to a comment in > > https://git.qemu.org/?p=qemu.git;a=blob;f=hw/core/qdev.c;h=96772a15bd5b76d3ebe27d45ed1f2c1beb7f5386;hb=HEAD#l1135 > > user_creatable = true is the default and most devices don't set it explicitely so I > think you can just remove the line setting it here. > > Regards, > BALATON Zoltan Ah yes indeed, thanks for the reference. I'll see if anyone else has any further comments on the series before posting an updated v2 with this line removed. ATB, Mark.
Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> writes: > Instead use qdev_set_nic_properties() to configure the on-board NIC at the > sun4m machine level. > > Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> > --- > hw/dma/sparc32_dma.c | 5 ----- > hw/sparc/sun4m.c | 21 +++++++++++++-------- > 2 files changed, 13 insertions(+), 13 deletions(-) > > diff --git a/hw/dma/sparc32_dma.c b/hw/dma/sparc32_dma.c > index 2cbe331959..b643b413c5 100644 > --- a/hw/dma/sparc32_dma.c > +++ b/hw/dma/sparc32_dma.c > @@ -342,12 +342,7 @@ static void sparc32_ledma_device_realize(DeviceState *dev, Error **errp) > { > LEDMADeviceState *s = SPARC32_LEDMA_DEVICE(dev); > SysBusPCNetState *lance = SYSBUS_PCNET(&s->lance); > - NICInfo *nd = &nd_table[0]; > > - /* FIXME use qdev NIC properties instead of nd_table[] */ > - qemu_check_nic_model(nd, TYPE_LANCE); > - > - qdev_set_nic_properties(DEVICE(lance), nd); > object_property_set_link(OBJECT(lance), "dma", OBJECT(dev), &error_abort); > sysbus_realize(SYS_BUS_DEVICE(lance), &error_fatal); > } > diff --git a/hw/sparc/sun4m.c b/hw/sparc/sun4m.c > index 947b69d159..ed5f3ccd9f 100644 > --- a/hw/sparc/sun4m.c > +++ b/hw/sparc/sun4m.c > @@ -319,7 +319,7 @@ static void *iommu_init(hwaddr addr, uint32_t version, qemu_irq irq) > > static void *sparc32_dma_init(hwaddr dma_base, > hwaddr esp_base, qemu_irq espdma_irq, > - hwaddr le_base, qemu_irq ledma_irq) > + hwaddr le_base, qemu_irq ledma_irq, NICInfo *nd) > { > DeviceState *dma; > ESPDMADeviceState *espdma; > @@ -328,16 +328,11 @@ static void *sparc32_dma_init(hwaddr dma_base, > SysBusPCNetState *lance; > > dma = qdev_new(TYPE_SPARC32_DMA); > - sysbus_realize_and_unref(SYS_BUS_DEVICE(dma), &error_fatal); > - sysbus_mmio_map(SYS_BUS_DEVICE(dma), 0, dma_base); > - > espdma = SPARC32_ESPDMA_DEVICE(object_resolve_path_component( > OBJECT(dma), "espdma")); > sysbus_connect_irq(SYS_BUS_DEVICE(espdma), 0, espdma_irq); > > esp = ESP(object_resolve_path_component(OBJECT(espdma), "esp")); > - sysbus_mmio_map(SYS_BUS_DEVICE(esp), 0, esp_base); > - scsi_bus_legacy_handle_cmdline(&esp->esp.bus); > > ledma = SPARC32_LEDMA_DEVICE(object_resolve_path_component( > OBJECT(dma), "ledma")); > @@ -345,6 +340,14 @@ static void *sparc32_dma_init(hwaddr dma_base, > > lance = SYSBUS_PCNET(object_resolve_path_component( > OBJECT(ledma), "lance")); > + qdev_set_nic_properties(DEVICE(lance), nd); > + > + sysbus_realize_and_unref(SYS_BUS_DEVICE(dma), &error_fatal); > + sysbus_mmio_map(SYS_BUS_DEVICE(dma), 0, dma_base); > + > + sysbus_mmio_map(SYS_BUS_DEVICE(esp), 0, esp_base); > + scsi_bus_legacy_handle_cmdline(&esp->esp.bus); > + > sysbus_mmio_map(SYS_BUS_DEVICE(lance), 0, le_base); > > return dma; You delay a bit of work on devices @dma and @esp. Can you explain why? > @@ -854,6 +857,7 @@ static void sun4m_hw_init(const struct sun4m_hwdef *hwdef, > unsigned int max_cpus = machine->smp.max_cpus; > Object *ram_memdev = object_resolve_path_type(machine->ram_memdev_id, > TYPE_MEMORY_BACKEND, NULL); > + NICInfo *nd = &nd_table[0]; > > if (machine->ram_size > hwdef->max_mem) { > error_report("Too much memory for this machine: %" PRId64 "," > @@ -914,9 +918,10 @@ static void sun4m_hw_init(const struct sun4m_hwdef *hwdef, > hwdef->iommu_pad_base, hwdef->iommu_pad_len); > } > > + qemu_check_nic_model(nd, TYPE_LANCE); > sparc32_dma_init(hwdef->dma_base, > hwdef->esp_base, slavio_irq[18], > - hwdef->le_base, slavio_irq[16]); > + hwdef->le_base, slavio_irq[16], nd); > > if (graphic_depth != 8 && graphic_depth != 24) { > error_report("Unsupported depth: %d", graphic_depth); > @@ -1047,7 +1052,7 @@ static void sun4m_hw_init(const struct sun4m_hwdef *hwdef, > machine->initrd_filename, > machine->ram_size, &initrd_size); > > - nvram_init(nvram, (uint8_t *)&nd_table[0].macaddr, machine->kernel_cmdline, > + nvram_init(nvram, (uint8_t *)&nd->macaddr, machine->kernel_cmdline, > machine->boot_order, machine->ram_size, kernel_size, > graphic_width, graphic_height, graphic_depth, > hwdef->nvram_machine_id, "Sun4m");
On 21/09/2020 10:25, Markus Armbruster wrote: > Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> writes: > >> Instead use qdev_set_nic_properties() to configure the on-board NIC at the >> sun4m machine level. >> >> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> >> --- >> hw/dma/sparc32_dma.c | 5 ----- >> hw/sparc/sun4m.c | 21 +++++++++++++-------- >> 2 files changed, 13 insertions(+), 13 deletions(-) >> >> diff --git a/hw/dma/sparc32_dma.c b/hw/dma/sparc32_dma.c >> index 2cbe331959..b643b413c5 100644 >> --- a/hw/dma/sparc32_dma.c >> +++ b/hw/dma/sparc32_dma.c >> @@ -342,12 +342,7 @@ static void sparc32_ledma_device_realize(DeviceState *dev, Error **errp) >> { >> LEDMADeviceState *s = SPARC32_LEDMA_DEVICE(dev); >> SysBusPCNetState *lance = SYSBUS_PCNET(&s->lance); >> - NICInfo *nd = &nd_table[0]; >> >> - /* FIXME use qdev NIC properties instead of nd_table[] */ >> - qemu_check_nic_model(nd, TYPE_LANCE); >> - >> - qdev_set_nic_properties(DEVICE(lance), nd); >> object_property_set_link(OBJECT(lance), "dma", OBJECT(dev), &error_abort); >> sysbus_realize(SYS_BUS_DEVICE(lance), &error_fatal); >> } >> diff --git a/hw/sparc/sun4m.c b/hw/sparc/sun4m.c >> index 947b69d159..ed5f3ccd9f 100644 >> --- a/hw/sparc/sun4m.c >> +++ b/hw/sparc/sun4m.c >> @@ -319,7 +319,7 @@ static void *iommu_init(hwaddr addr, uint32_t version, qemu_irq irq) >> >> static void *sparc32_dma_init(hwaddr dma_base, >> hwaddr esp_base, qemu_irq espdma_irq, >> - hwaddr le_base, qemu_irq ledma_irq) >> + hwaddr le_base, qemu_irq ledma_irq, NICInfo *nd) >> { >> DeviceState *dma; >> ESPDMADeviceState *espdma; >> @@ -328,16 +328,11 @@ static void *sparc32_dma_init(hwaddr dma_base, >> SysBusPCNetState *lance; >> >> dma = qdev_new(TYPE_SPARC32_DMA); >> - sysbus_realize_and_unref(SYS_BUS_DEVICE(dma), &error_fatal); >> - sysbus_mmio_map(SYS_BUS_DEVICE(dma), 0, dma_base); >> - >> espdma = SPARC32_ESPDMA_DEVICE(object_resolve_path_component( >> OBJECT(dma), "espdma")); >> sysbus_connect_irq(SYS_BUS_DEVICE(espdma), 0, espdma_irq); >> >> esp = ESP(object_resolve_path_component(OBJECT(espdma), "esp")); >> - sysbus_mmio_map(SYS_BUS_DEVICE(esp), 0, esp_base); >> - scsi_bus_legacy_handle_cmdline(&esp->esp.bus); >> >> ledma = SPARC32_LEDMA_DEVICE(object_resolve_path_component( >> OBJECT(dma), "ledma")); >> @@ -345,6 +340,14 @@ static void *sparc32_dma_init(hwaddr dma_base, >> >> lance = SYSBUS_PCNET(object_resolve_path_component( >> OBJECT(ledma), "lance")); >> + qdev_set_nic_properties(DEVICE(lance), nd); >> + >> + sysbus_realize_and_unref(SYS_BUS_DEVICE(dma), &error_fatal); >> + sysbus_mmio_map(SYS_BUS_DEVICE(dma), 0, dma_base); >> + >> + sysbus_mmio_map(SYS_BUS_DEVICE(esp), 0, esp_base); >> + scsi_bus_legacy_handle_cmdline(&esp->esp.bus); >> + >> sysbus_mmio_map(SYS_BUS_DEVICE(lance), 0, le_base); >> >> return dma; > > You delay a bit of work on devices @dma and @esp. Can you explain why? This is where it starts to get a little hazy: the sysbus_mmio_map() for the dma device should be fine, since that's the container device for ledma and espdma devices which is realised the line above. The call to scsi_bus_legacy_handle_cmdline() is interesting - AFAICT if the esp device within the dma device hasn't been realised then I get a crash, and that's why I moved the legacy command line handling to after realise. The lance and esp devices are embedded within ledma and espdma devices respectively, but are actually sysbus devices because they can be used by other machines. I'm not sure if lance is used anywhere else, but esp certainly is. Hence they are mapped after the dma device is realised as it feels odd to attach devices to sysbus outside of a machine init function. ATB, Mark.
On 21/09/2020 18:03, Mark Cave-Ayland wrote: > The lance and esp devices are embedded within ledma and espdma devices respectively, > but are actually sysbus devices because they can be used by other machines. I'm not > sure if lance is used anywhere else, but esp certainly is. Hence they are mapped > after the dma device is realised as it feels odd to attach devices to sysbus outside > of a machine init function. Actually I have a better idea for this: use sysbus_mmio_get_region() within the sparc32-dma device to attach the lance and esp memory regions to its own container memory region: then the single sysbus_mmio_map() for the sparc32-dma device will just work on its own. ATB, Mark.
On 9/21/20 7:08 PM, Mark Cave-Ayland wrote: > On 21/09/2020 10:57, Philippe Mathieu-Daudé wrote: > >> Hi Mark, >> >> On 9/20/20 10:20 AM, Mark Cave-Ayland wrote: >>> Instead use qdev_set_nic_properties() to configure the on-board NIC at the >>> sun4m machine level. >>> >>> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> >>> --- >>> hw/dma/sparc32_dma.c | 5 ----- >>> hw/sparc/sun4m.c | 21 +++++++++++++-------- >>> 2 files changed, 13 insertions(+), 13 deletions(-) >>> >>> diff --git a/hw/dma/sparc32_dma.c b/hw/dma/sparc32_dma.c >>> index 2cbe331959..b643b413c5 100644 >>> --- a/hw/dma/sparc32_dma.c >>> +++ b/hw/dma/sparc32_dma.c >>> @@ -342,12 +342,7 @@ static void sparc32_ledma_device_realize(DeviceState *dev, Error **errp) >>> { >>> LEDMADeviceState *s = SPARC32_LEDMA_DEVICE(dev); >>> SysBusPCNetState *lance = SYSBUS_PCNET(&s->lance); >>> - NICInfo *nd = &nd_table[0]; >>> >>> - /* FIXME use qdev NIC properties instead of nd_table[] */ >>> - qemu_check_nic_model(nd, TYPE_LANCE); >>> - >>> - qdev_set_nic_properties(DEVICE(lance), nd); >>> object_property_set_link(OBJECT(lance), "dma", OBJECT(dev), &error_abort); >>> sysbus_realize(SYS_BUS_DEVICE(lance), &error_fatal); >>> } >>> diff --git a/hw/sparc/sun4m.c b/hw/sparc/sun4m.c >>> index 947b69d159..ed5f3ccd9f 100644 >>> --- a/hw/sparc/sun4m.c >>> +++ b/hw/sparc/sun4m.c >>> @@ -319,7 +319,7 @@ static void *iommu_init(hwaddr addr, uint32_t version, qemu_irq irq) >>> >>> static void *sparc32_dma_init(hwaddr dma_base, >>> hwaddr esp_base, qemu_irq espdma_irq, >>> - hwaddr le_base, qemu_irq ledma_irq) >>> + hwaddr le_base, qemu_irq ledma_irq, NICInfo *nd) >> >> Instead of passing NICInfo to sparc32_dma_init, >> shouldn't you extract the lance code from it? > > Hi Philippe, > > I'm not sure I understand what you mean here? The sparc32-dma device is realised > within the sparc32_dma_init() function and qdev_set_nic_properties() must be called > before realise happens. > > If you can explain a bit more about how you think it can be separated out then I can > take a look. Sorry I guess I got confused by the 2 different sparc32_dma_init() functions. Since ledma always expose lance, maybe you can use: diff --git a/hw/dma/sparc32_dma.c b/hw/dma/sparc32_dma.c index 2cbe331959a..9a907a30373 100644 --- a/hw/dma/sparc32_dma.c +++ b/hw/dma/sparc32_dma.c @@ -336,18 +336,14 @@ static void sparc32_ledma_device_init(Object *obj) "ledma-mmio", DMA_SIZE); object_initialize_child(obj, "lance", &ls->lance, TYPE_LANCE); + qdev_alias_all_properties(DEVICE(&ls->lance), obj); } This way you set the properties directly on the ledma and only have to sysbus_map lance. > > > ATB, > > Mark. >
On 21/09/2020 18:14, Mark Cave-Ayland wrote: > On 21/09/2020 18:03, Mark Cave-Ayland wrote: > >> The lance and esp devices are embedded within ledma and espdma devices respectively, >> but are actually sysbus devices because they can be used by other machines. I'm not >> sure if lance is used anywhere else, but esp certainly is. Hence they are mapped >> after the dma device is realised as it feels odd to attach devices to sysbus outside >> of a machine init function. > > Actually I have a better idea for this: use sysbus_mmio_get_region() within the > sparc32-dma device to attach the lance and esp memory regions to its own container > memory region: then the single sysbus_mmio_map() for the sparc32-dma device will just > work on its own. (goes and looks) Ah now I remember - the DMA control registers and the lance/ESP devices are mapped to 2 different memory locations. So I think the current solution is the best one here. ATB, Mark.
On 21/09/2020 18:58, Philippe Mathieu-Daudé wrote: > Sorry I guess I got confused by the 2 different sparc32_dma_init() > functions. > > Since ledma always expose lance, maybe you can use: > > diff --git a/hw/dma/sparc32_dma.c b/hw/dma/sparc32_dma.c > index 2cbe331959a..9a907a30373 100644 > --- a/hw/dma/sparc32_dma.c > +++ b/hw/dma/sparc32_dma.c > @@ -336,18 +336,14 @@ static void sparc32_ledma_device_init(Object *obj) > "ledma-mmio", DMA_SIZE); > > object_initialize_child(obj, "lance", &ls->lance, TYPE_LANCE); > + qdev_alias_all_properties(DEVICE(&ls->lance), obj); > } > > This way you set the properties directly on the ledma and only > have to sysbus_map lance. Thanks for the hint. I've had a look at qdev_alias_all_properties() and for the moment I'd prefer to get the reference to the internal lance/esp devices via object_resolve_path_component(), since to me it makes it clearer on which device the properties really belong from just looking at the code. ATB, Mark.
This series started off as a fix for the nd_table misuse in the sparc32-ledma device as pointed out by Markus, and then I remembered there was similar issue around the use of serial_hd() in macio. The last patch is one I've had sitting in a local branch for a while and is a mistake I made during the original sabre.c split which seems appropriate to include here. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Mark Cave-Ayland (6): sparc32-dma: use object_initialize_child() for espdma and ledma child objects sparc32-ledma: use object_initialize_child() for lance child object sparc32-espdma: use object_initialize_child() for esp child object sparc32-ledma: don't reference nd_table directly within the device macio: don't reference serial_hd() directly within the device sabre: don't call sysbus_mmio_map() in sabre_realize() hw/dma/sparc32_dma.c | 49 +++++++++++++++++----------------- hw/misc/macio/macio.c | 5 +--- hw/pci-host/sabre.c | 8 ------ hw/ppc/mac_newworld.c | 6 +++++ hw/ppc/mac_oldworld.c | 6 +++++ hw/sparc/sun4m.c | 21 +++++++++------ hw/sparc64/sun4u.c | 7 +++++ include/hw/sparc/sparc32_dma.h | 8 +++--- 8 files changed, 61 insertions(+), 49 deletions(-)