From cb711a6d7f852b6a61b8c83c4538b93c7b91ebe8 Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Fri, 19 Jan 2024 16:35:12 +0000 Subject: [PATCH] hw/core: Remove transitional infrastructure from BusClass MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit BusClass currently has transitional infrastructure to support subclasses which implement the legacy BusClass::reset method rather than the Resettable interface. We have now removed all the users of BusClass::reset in the tree, so we can remove the transitional infrastructure. Signed-off-by: Peter Maydell Acked-by: Michael S. Tsirkin Acked-by: Cédric Le Goater Acked-by: Maciej S. Szmigiero Tested-by: Cédric Le Goater Reviewed-by: Zhao Liu Message-id: 20240119163512.3810301-6-peter.maydell@linaro.org --- hw/core/bus.c | 67 ------------------------------------------ include/hw/qdev-core.h | 2 -- 2 files changed, 69 deletions(-) diff --git a/hw/core/bus.c b/hw/core/bus.c index c7831b5293..b9d89495cd 100644 --- a/hw/core/bus.c +++ b/hw/core/bus.c @@ -232,57 +232,6 @@ static char *default_bus_get_fw_dev_path(DeviceState *dev) return g_strdup(object_get_typename(OBJECT(dev))); } -/** - * bus_phases_reset: - * Transition reset method for buses to allow moving - * smoothly from legacy reset method to multi-phases - */ -static void bus_phases_reset(BusState *bus) -{ - ResettableClass *rc = RESETTABLE_GET_CLASS(bus); - - if (rc->phases.enter) { - rc->phases.enter(OBJECT(bus), RESET_TYPE_COLD); - } - if (rc->phases.hold) { - rc->phases.hold(OBJECT(bus)); - } - if (rc->phases.exit) { - rc->phases.exit(OBJECT(bus)); - } -} - -static void bus_transitional_reset(Object *obj) -{ - BusClass *bc = BUS_GET_CLASS(obj); - - /* - * This will call either @bus_phases_reset (for multi-phases transitioned - * buses) or a bus's specific method for not-yet transitioned buses. - * In both case, it does not reset children. - */ - if (bc->reset) { - bc->reset(BUS(obj)); - } -} - -/** - * bus_get_transitional_reset: - * check if the bus's class is ready for multi-phase - */ -static ResettableTrFunction bus_get_transitional_reset(Object *obj) -{ - BusClass *dc = BUS_GET_CLASS(obj); - if (dc->reset != bus_phases_reset) { - /* - * dc->reset has been overridden by a subclass, - * the bus is not ready for multi phase yet. - */ - return bus_transitional_reset; - } - return NULL; -} - static void bus_class_init(ObjectClass *class, void *data) { BusClass *bc = BUS_CLASS(class); @@ -293,22 +242,6 @@ static void bus_class_init(ObjectClass *class, void *data) rc->get_state = bus_get_reset_state; rc->child_foreach = bus_reset_child_foreach; - - /* - * @bus_phases_reset is put as the default reset method below, allowing - * to do the multi-phase transition from base classes to leaf classes. It - * allows a legacy-reset Bus class to extend a multi-phases-reset - * Bus class for the following reason: - * + If a base class B has been moved to multi-phase, then it does not - * override this default reset method and may have defined phase methods. - * + A child class C (extending class B) which uses - * bus_class_set_parent_reset() (or similar means) to override the - * reset method will still work as expected. @bus_phases_reset function - * will be registered as the parent reset method and effectively call - * parent reset phases. - */ - bc->reset = bus_phases_reset; - rc->get_transitional_function = bus_get_transitional_reset; } static void qbus_finalize(Object *obj) diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h index 66338f479f..d47536eadb 100644 --- a/include/hw/qdev-core.h +++ b/include/hw/qdev-core.h @@ -329,8 +329,6 @@ struct BusClass { */ char *(*get_fw_dev_path)(DeviceState *dev); - void (*reset)(BusState *bus); - /* * Return whether the device can be added to @bus, * based on the address that was set (via device properties)