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sparc32_dma: make esp device child of espdma device 

This makes it possible to reference the esp device from the espdma device as
required, and by wiring up the device ourselves in sun4m.c we can drop use
of the esp_init() function.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Artyom Tarasenko <atar4qemu@gmail.com>
Acked-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
This commit is contained in:
Mark Cave-Ayland 2017-10-14 13:22:22 +01:00
parent 1b13a60c1c
commit 7f773ff5d0
3 changed files with 37 additions and 11 deletions
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26
hw/dma/sparc32_dma.c
View File

@ -298,11 +298,37 @@ static void sparc32_espdma_device_init(Object *obj)
s->is_ledma = 0;
}
static void sparc32_espdma_device_realize(DeviceState *dev, Error **errp)
{
DeviceState *d;
SysBusESPState *sysbus;
ESPState *esp;
d = qdev_create(NULL, TYPE_ESP);
object_property_add_child(OBJECT(dev), "esp", OBJECT(d), errp);
sysbus = ESP_STATE(d);
esp = &sysbus->esp;
esp->dma_memory_read = espdma_memory_read;
esp->dma_memory_write = espdma_memory_write;
esp->dma_opaque = SPARC32_DMA_DEVICE(dev);
sysbus->it_shift = 2;
esp->dma_enabled = 1;
qdev_init_nofail(d);
}
static void sparc32_espdma_device_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->realize = sparc32_espdma_device_realize;
}
static const TypeInfo sparc32_espdma_device_info = {
.name = TYPE_SPARC32_ESPDMA_DEVICE,
.parent = TYPE_SPARC32_DMA_DEVICE,
.instance_size = sizeof(ESPDMADeviceState),
.instance_init = sparc32_espdma_device_init,
.class_init = sparc32_espdma_device_class_init,
};
static void sparc32_ledma_device_init(Object *obj)

19
hw/sparc/sun4m.c
View File

@ -817,10 +817,9 @@ static void sun4m_hw_init(const struct sun4m_hwdef *hwdef,
DeviceState *slavio_intctl;
unsigned int i;
void *iommu, *nvram;
DeviceState *espdma, *ledma;
DeviceState *espdma, *esp, *ledma;
SysBusDevice *sbd;
qemu_irq *cpu_irqs[MAX_CPUS], slavio_irq[32], slavio_cpu_irq[MAX_CPUS];
qemu_irq esp_reset, dma_enable;
qemu_irq fdc_tc;
unsigned long kernel_size;
DriveInfo *fd[MAX_FD];
@ -879,6 +878,13 @@ static void sun4m_hw_init(const struct sun4m_hwdef *hwdef,
sbd = SYS_BUS_DEVICE(espdma);
sysbus_connect_irq(sbd, 0, slavio_irq[18]);
esp = DEVICE(object_resolve_path_component(OBJECT(espdma), "esp"));
sbd = SYS_BUS_DEVICE(esp);
sysbus_mmio_map(sbd, 0, hwdef->esp_base);
sysbus_connect_irq(sbd, 0, qdev_get_gpio_in(espdma, 0));
qdev_connect_gpio_out(espdma, 0, qdev_get_gpio_in(esp, 0));
qdev_connect_gpio_out(espdma, 1, qdev_get_gpio_in(esp, 1));
ledma = sparc32_dma_init(hwdef->dma_base + 16ULL, iommu, 1);
sbd = SYS_BUS_DEVICE(ledma);
sysbus_connect_irq(sbd, 0, slavio_irq[16]);
@ -965,15 +971,6 @@ static void sun4m_hw_init(const struct sun4m_hwdef *hwdef,
slavio_misc_init(hwdef->slavio_base, hwdef->aux1_base, hwdef->aux2_base,
slavio_irq[30], fdc_tc);
esp_init(hwdef->esp_base, 2,
espdma_memory_read, espdma_memory_write,
espdma,
qdev_get_gpio_in(espdma, 0),
&esp_reset, &dma_enable);
qdev_connect_gpio_out(espdma, 0, esp_reset);
qdev_connect_gpio_out(espdma, 1, dma_enable);
if (hwdef->cs_base) {
sysbus_create_simple("SUNW,CS4231", hwdef->cs_base,
slavio_irq[5]);

3
include/hw/sparc/sparc32_dma.h
View File

@ -2,6 +2,7 @@
#define SPARC32_DMA_H
#include "hw/sysbus.h"
#include "hw/scsi/esp.h"
#define DMA_REGS 4
@ -28,6 +29,8 @@ struct DMADeviceState {
typedef struct ESPDMADeviceState {
DMADeviceState parent_obj;
SysBusESPState *esp;
} ESPDMADeviceState;
#define TYPE_SPARC32_LEDMA_DEVICE "sparc32-ledma"