diff options
| author | Igor Mammedov <imammedo@redhat.com> | 2018-05-10 18:10:56 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2018-05-10 18:10:56 +0100 |
| commit | a3fc8396352e945f9d14cac0237ebf9d91745969 (patch) | |
| tree | 0c8fae5141eeaa45f1ea0fc1f4f8033c21540623 /include | |
| parent | 38aefb578dcf918359249ae5b29183255db809c2 (diff) | |
platform-bus-device: use device plug callback instead of machine_done notifier
platform-bus were using machine_done notifier to get and map
(assign irq/mmio resources) dynamically added sysbus devices
after all '-device' options had been processed.
That however creates non obvious dependencies on ordering of
machine_done notifiers and requires carefull line juggling
to keep it working. For example see comment above
create_platform_bus() and 'straitforward' arm_load_kernel()
had to converted to machine_done notifier and that lead to
yet another machine_done notifier to keep it working
arm_register_platform_bus_fdt_creator().
Instead of hiding resource assignment in platform-bus-device
to magically initialize sysbus devices, use device plug
callback and assign resources explicitly at board level
at the moment each -device option is being processed.
That adds a bunch of machine declaration boiler plate to
e500plat board, similar to ARM/x86 but gets rid of hidden
machine_done notifier and would allow to remove the dependent
notifiers in ARM code simplifying it and making code flow
easier to follow.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Message-id: 1525691524-32265-3-git-send-email-imammedo@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/arm/virt.h | 1 | ||||
| -rw-r--r-- | include/hw/platform-bus.h | 4 |
2 files changed, 3 insertions, 2 deletions
diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h index 886372cdbb..4ac7ef6a37 100644 --- a/include/hw/arm/virt.h +++ b/include/hw/arm/virt.h @@ -99,6 +99,7 @@ typedef struct { typedef struct { MachineState parent; Notifier machine_done; + DeviceState *platform_bus_dev; FWCfgState *fw_cfg; bool secure; bool highmem; diff --git a/include/hw/platform-bus.h b/include/hw/platform-bus.h index a00775cba6..19e20c57ce 100644 --- a/include/hw/platform-bus.h +++ b/include/hw/platform-bus.h @@ -37,8 +37,6 @@ typedef struct PlatformBusDevice PlatformBusDevice; struct PlatformBusDevice { /*< private >*/ SysBusDevice parent_obj; - Notifier notifier; - bool done_gathering; /*< public >*/ uint32_t mmio_size; @@ -54,4 +52,6 @@ int platform_bus_get_irqn(PlatformBusDevice *platform_bus, SysBusDevice *sbdev, hwaddr platform_bus_get_mmio_addr(PlatformBusDevice *pbus, SysBusDevice *sbdev, int n); +void platform_bus_link_device(PlatformBusDevice *pbus, SysBusDevice *sbdev); + #endif /* HW_PLATFORM_BUS_H */ |