The only way object_property_add() can fail is when a property with the same name already exists. Since our property names are all hardcoded, failure is a programming error, and the appropriate way to handle it is passing &error_abort. Same for its variants, except for object_property_add_child(), which additionally fails when the child already has a parent. Parentage is also under program control, so this is a programming error, too. We have a bit over 500 callers. Almost half of them pass &error_abort, slightly fewer ignore errors, one test case handles errors, and the remaining few callers pass them to their own callers. The previous few commits demonstrated once again that ignoring programming errors is a bad idea. Of the few ones that pass on errors, several violate the Error API. The Error ** argument must be NULL, &error_abort, &error_fatal, or a pointer to a variable containing NULL. Passing an argument of the latter kind twice without clearing it in between is wrong: if the first call sets an error, it no longer points to NULL for the second call. ich9_pm_add_properties(), sparc32_ledma_realize(), sparc32_dma_realize(), xilinx_axidma_realize(), xilinx_enet_realize() are wrong that way. When the one appropriate choice of argument is &error_abort, letting users pick the argument is a bad idea. Drop parameter @errp and assert the preconditions instead. There's one exception to "duplicate property name is a programming error": the way object_property_add() implements the magic (and undocumented) "automatic arrayification". Don't drop @errp there. Instead, rename object_property_add() to object_property_try_add(), and add the obvious wrapper object_property_add(). Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20200505152926.18877-15-armbru@redhat.com> [Two semantic rebase conflicts resolved]
211 lines
7.4 KiB
C
211 lines
7.4 KiB
C
/*
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* Allwinner A10 SoC emulation
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*
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* Copyright (C) 2013 Li Guang
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* Written by Li Guang <lig.fnst@cn.fujitsu.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include "qemu/osdep.h"
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#include "exec/address-spaces.h"
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#include "qapi/error.h"
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#include "qemu/module.h"
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#include "cpu.h"
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#include "hw/sysbus.h"
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#include "hw/arm/allwinner-a10.h"
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#include "hw/misc/unimp.h"
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#include "sysemu/sysemu.h"
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#include "hw/boards.h"
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#include "hw/usb/hcd-ohci.h"
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#define AW_A10_MMC0_BASE 0x01c0f000
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#define AW_A10_PIC_REG_BASE 0x01c20400
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#define AW_A10_PIT_REG_BASE 0x01c20c00
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#define AW_A10_UART0_REG_BASE 0x01c28000
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#define AW_A10_EMAC_BASE 0x01c0b000
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#define AW_A10_EHCI_BASE 0x01c14000
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#define AW_A10_OHCI_BASE 0x01c14400
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#define AW_A10_SATA_BASE 0x01c18000
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#define AW_A10_RTC_BASE 0x01c20d00
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static void aw_a10_init(Object *obj)
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{
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AwA10State *s = AW_A10(obj);
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object_initialize_child(obj, "cpu", &s->cpu, sizeof(s->cpu),
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ARM_CPU_TYPE_NAME("cortex-a8"),
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&error_abort, NULL);
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sysbus_init_child_obj(obj, "intc", &s->intc, sizeof(s->intc),
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TYPE_AW_A10_PIC);
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sysbus_init_child_obj(obj, "timer", &s->timer, sizeof(s->timer),
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TYPE_AW_A10_PIT);
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sysbus_init_child_obj(obj, "emac", &s->emac, sizeof(s->emac), TYPE_AW_EMAC);
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sysbus_init_child_obj(obj, "sata", &s->sata, sizeof(s->sata),
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TYPE_ALLWINNER_AHCI);
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if (machine_usb(current_machine)) {
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int i;
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for (i = 0; i < AW_A10_NUM_USB; i++) {
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sysbus_init_child_obj(obj, "ehci[*]", OBJECT(&s->ehci[i]),
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sizeof(s->ehci[i]), TYPE_PLATFORM_EHCI);
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sysbus_init_child_obj(obj, "ohci[*]", OBJECT(&s->ohci[i]),
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sizeof(s->ohci[i]), TYPE_SYSBUS_OHCI);
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}
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}
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sysbus_init_child_obj(obj, "mmc0", &s->mmc0, sizeof(s->mmc0),
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TYPE_AW_SDHOST_SUN4I);
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sysbus_init_child_obj(obj, "rtc", &s->rtc, sizeof(s->rtc),
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TYPE_AW_RTC_SUN4I);
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}
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static void aw_a10_realize(DeviceState *dev, Error **errp)
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{
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AwA10State *s = AW_A10(dev);
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SysBusDevice *sysbusdev;
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Error *err = NULL;
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object_property_set_bool(OBJECT(&s->cpu), true, "realized", &err);
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if (err != NULL) {
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error_propagate(errp, err);
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return;
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}
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object_property_set_bool(OBJECT(&s->intc), true, "realized", &err);
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if (err != NULL) {
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error_propagate(errp, err);
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return;
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}
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sysbusdev = SYS_BUS_DEVICE(&s->intc);
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sysbus_mmio_map(sysbusdev, 0, AW_A10_PIC_REG_BASE);
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sysbus_connect_irq(sysbusdev, 0,
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qdev_get_gpio_in(DEVICE(&s->cpu), ARM_CPU_IRQ));
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sysbus_connect_irq(sysbusdev, 1,
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qdev_get_gpio_in(DEVICE(&s->cpu), ARM_CPU_FIQ));
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qdev_pass_gpios(DEVICE(&s->intc), dev, NULL);
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object_property_set_bool(OBJECT(&s->timer), true, "realized", &err);
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if (err != NULL) {
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error_propagate(errp, err);
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return;
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}
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sysbusdev = SYS_BUS_DEVICE(&s->timer);
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sysbus_mmio_map(sysbusdev, 0, AW_A10_PIT_REG_BASE);
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sysbus_connect_irq(sysbusdev, 0, qdev_get_gpio_in(dev, 22));
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sysbus_connect_irq(sysbusdev, 1, qdev_get_gpio_in(dev, 23));
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sysbus_connect_irq(sysbusdev, 2, qdev_get_gpio_in(dev, 24));
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sysbus_connect_irq(sysbusdev, 3, qdev_get_gpio_in(dev, 25));
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sysbus_connect_irq(sysbusdev, 4, qdev_get_gpio_in(dev, 67));
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sysbus_connect_irq(sysbusdev, 5, qdev_get_gpio_in(dev, 68));
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memory_region_init_ram(&s->sram_a, OBJECT(dev), "sram A", 48 * KiB,
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&error_fatal);
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memory_region_add_subregion(get_system_memory(), 0x00000000, &s->sram_a);
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create_unimplemented_device("a10-sram-ctrl", 0x01c00000, 4 * KiB);
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/* FIXME use qdev NIC properties instead of nd_table[] */
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if (nd_table[0].used) {
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qemu_check_nic_model(&nd_table[0], TYPE_AW_EMAC);
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qdev_set_nic_properties(DEVICE(&s->emac), &nd_table[0]);
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}
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object_property_set_bool(OBJECT(&s->emac), true, "realized", &err);
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if (err != NULL) {
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error_propagate(errp, err);
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return;
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}
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sysbusdev = SYS_BUS_DEVICE(&s->emac);
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sysbus_mmio_map(sysbusdev, 0, AW_A10_EMAC_BASE);
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sysbus_connect_irq(sysbusdev, 0, qdev_get_gpio_in(dev, 55));
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object_property_set_bool(OBJECT(&s->sata), true, "realized", &err);
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if (err) {
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error_propagate(errp, err);
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return;
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}
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sysbus_mmio_map(SYS_BUS_DEVICE(&s->sata), 0, AW_A10_SATA_BASE);
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sysbus_connect_irq(SYS_BUS_DEVICE(&s->sata), 0, qdev_get_gpio_in(dev, 56));
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/* FIXME use a qdev chardev prop instead of serial_hd() */
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serial_mm_init(get_system_memory(), AW_A10_UART0_REG_BASE, 2,
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qdev_get_gpio_in(dev, 1),
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115200, serial_hd(0), DEVICE_NATIVE_ENDIAN);
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if (machine_usb(current_machine)) {
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int i;
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for (i = 0; i < AW_A10_NUM_USB; i++) {
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char bus[16];
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sprintf(bus, "usb-bus.%d", i);
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object_property_set_bool(OBJECT(&s->ehci[i]), true,
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"companion-enable", &error_fatal);
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object_property_set_bool(OBJECT(&s->ehci[i]), true, "realized",
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&error_fatal);
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sysbus_mmio_map(SYS_BUS_DEVICE(&s->ehci[i]), 0,
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AW_A10_EHCI_BASE + i * 0x8000);
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sysbus_connect_irq(SYS_BUS_DEVICE(&s->ehci[i]), 0,
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qdev_get_gpio_in(dev, 39 + i));
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object_property_set_str(OBJECT(&s->ohci[i]), bus, "masterbus",
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&error_fatal);
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object_property_set_bool(OBJECT(&s->ohci[i]), true, "realized",
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&error_fatal);
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sysbus_mmio_map(SYS_BUS_DEVICE(&s->ohci[i]), 0,
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AW_A10_OHCI_BASE + i * 0x8000);
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sysbus_connect_irq(SYS_BUS_DEVICE(&s->ohci[i]), 0,
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qdev_get_gpio_in(dev, 64 + i));
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}
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}
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/* SD/MMC */
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qdev_init_nofail(DEVICE(&s->mmc0));
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sysbus_mmio_map(SYS_BUS_DEVICE(&s->mmc0), 0, AW_A10_MMC0_BASE);
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sysbus_connect_irq(SYS_BUS_DEVICE(&s->mmc0), 0, qdev_get_gpio_in(dev, 32));
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object_property_add_alias(OBJECT(s), "sd-bus", OBJECT(&s->mmc0),
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"sd-bus");
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/* RTC */
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qdev_init_nofail(DEVICE(&s->rtc));
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sysbus_mmio_map_overlap(SYS_BUS_DEVICE(&s->rtc), 0, AW_A10_RTC_BASE, 10);
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}
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static void aw_a10_class_init(ObjectClass *oc, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(oc);
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dc->realize = aw_a10_realize;
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/* Reason: Uses serial_hds and nd_table in realize function */
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dc->user_creatable = false;
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}
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static const TypeInfo aw_a10_type_info = {
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.name = TYPE_AW_A10,
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.parent = TYPE_DEVICE,
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.instance_size = sizeof(AwA10State),
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.instance_init = aw_a10_init,
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.class_init = aw_a10_class_init,
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};
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static void aw_a10_register_types(void)
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{
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type_register_static(&aw_a10_type_info);
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}
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type_init(aw_a10_register_types)
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