Reviewed-by: Daniel Henrique Barboza <danielhb...@gmail.com>
Signed-off-by: Cédric Le Goater <c...@kaod.org>
---
hw/ppc/ppc405.h | 23 +++++++++++++
hw/ppc/ppc405_uc.c | 80 +++++++++++++++++++++++++++++-----------------
2 files changed, 73 insertions(+), 30 deletions(-)
diff --git a/hw/ppc/ppc405.h b/hw/ppc/ppc405.h
index 36f6fd45217e..1da34a7f10f3 100644
--- a/hw/ppc/ppc405.h
+++ b/hw/ppc/ppc405.h
@@ -65,6 +65,28 @@ struct ppc4xx_bd_info_t {
typedef struct Ppc405SoCState Ppc405SoCState;
+
+
+/* DMA controller */
+#define TYPE_PPC405_DMA "ppc405-dma"
+OBJECT_DECLARE_SIMPLE_TYPE(Ppc405DmaState, PPC405_DMA);
+struct Ppc405DmaState {
+ SysBusDevice parent_obj;
+
+ PowerPCCPU *cpu;
+
+ qemu_irq irqs[4];
+ uint32_t cr[4];
+ uint32_t ct[4];
+ uint32_t da[4];
+ uint32_t sa[4];
+ uint32_t sg[4];
+ uint32_t sr;
+ uint32_t sgc;
+ uint32_t slp;
+ uint32_t pol;
+};
+
/* GPIO */
#define TYPE_PPC405_GPIO "ppc405-gpio"
OBJECT_DECLARE_SIMPLE_TYPE(Ppc405GpioState, PPC405_GPIO);
@@ -180,6 +202,7 @@ struct Ppc405SoCState {
Ppc405GptState gpt;
Ppc405OcmState ocm;
Ppc405GpioState gpio;
+ Ppc405DmaState dma;
};
/* PowerPC 405 core */
diff --git a/hw/ppc/ppc405_uc.c b/hw/ppc/ppc405_uc.c
index bd018804594a..6bd93c1cb90c 100644
--- a/hw/ppc/ppc405_uc.c
+++ b/hw/ppc/ppc405_uc.c
@@ -613,35 +613,20 @@ enum {
DMA0_POL = 0x126,
};
-typedef struct ppc405_dma_t ppc405_dma_t;
-struct ppc405_dma_t {
- qemu_irq irqs[4];
- uint32_t cr[4];
- uint32_t ct[4];
- uint32_t da[4];
- uint32_t sa[4];
- uint32_t sg[4];
- uint32_t sr;
- uint32_t sgc;
- uint32_t slp;
- uint32_t pol;
-};
-
-static uint32_t dcr_read_dma (void *opaque, int dcrn)
+static uint32_t dcr_read_dma(void *opaque, int dcrn)
{
return 0;
}
-static void dcr_write_dma (void *opaque, int dcrn, uint32_t val)
+static void dcr_write_dma(void *opaque, int dcrn, uint32_t val)
{
}
-static void ppc405_dma_reset (void *opaque)
+static void ppc405_dma_reset(DeviceState *dev)
{
- ppc405_dma_t *dma;
+ Ppc405DmaState *dma = PPC405_DMA(dev);
int i;
- dma = opaque;
for (i = 0; i < 4; i++) {
dma->cr[i] = 0x00000000;
dma->ct[i] = 0x00000000;
@@ -655,13 +640,20 @@ static void ppc405_dma_reset (void *opaque)
dma->pol = 0x00000000;
}
-static void ppc405_dma_init(CPUPPCState *env, qemu_irq irqs[4])
+static void ppc405_dma_realize(DeviceState *dev, Error **errp)
{
- ppc405_dma_t *dma;
+ Ppc405DmaState *dma = PPC405_DMA(dev);
+ CPUPPCState *env;
+ int i;
+
+ assert(dma->cpu);
+
+ env = &dma->cpu->env;
+
+ for (i = 0; i < ARRAY_SIZE(dma->irqs); i++) {
+ sysbus_init_irq(SYS_BUS_DEVICE(dma), &dma->irqs[i]);
+ }
- dma = g_new0(ppc405_dma_t, 1);
- memcpy(dma->irqs, irqs, 4 * sizeof(qemu_irq));
- qemu_register_reset(&ppc405_dma_reset, dma);
ppc_dcr_register(env, DMA0_CR0,
dma, &dcr_read_dma, &dcr_write_dma);
ppc_dcr_register(env, DMA0_CT0,
@@ -712,6 +704,22 @@ static void ppc405_dma_init(CPUPPCState *env, qemu_irq
irqs[4])
dma, &dcr_read_dma, &dcr_write_dma);
}
+static Property ppc405_dma_properties[] = {
+ DEFINE_PROP_LINK("cpu", Ppc405DmaState, cpu, TYPE_POWERPC_CPU,
+ PowerPCCPU *),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void ppc405_dma_class_init(ObjectClass *oc, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(oc);
+
+ dc->realize = ppc405_dma_realize;
+ dc->user_creatable = false;
+ dc->reset = ppc405_dma_reset;
+ device_class_set_props(dc, ppc405_dma_properties);
+}
+
/*****************************************************************************/
static uint64_t ppc405_gpio_read(void *opaque, hwaddr addr, unsigned size)
{
@@ -1408,12 +1416,14 @@ static void ppc405_soc_instance_init(Object *obj)
object_initialize_child(obj, "ocm", &s->ocm, TYPE_PPC405_OCM);
object_initialize_child(obj, "gpio", &s->gpio, TYPE_PPC405_GPIO);
+
+ object_initialize_child(obj, "dma", &s->dma, TYPE_PPC405_DMA);
}
static void ppc405_soc_realize(DeviceState *dev, Error **errp)
{
Ppc405SoCState *s = PPC405_SOC(dev);
- qemu_irq dma_irqs[4], mal_irqs[4];
+ qemu_irq mal_irqs[4];
CPUPPCState *env;
Error *err = NULL;
int i;
@@ -1483,11 +1493,16 @@ static void ppc405_soc_realize(DeviceState *dev, Error
**errp)
ppc405_ebc_init(env);
/* DMA controller */
- dma_irqs[0] = qdev_get_gpio_in(s->uic, 5);
- dma_irqs[1] = qdev_get_gpio_in(s->uic, 6);
- dma_irqs[2] = qdev_get_gpio_in(s->uic, 7);
- dma_irqs[3] = qdev_get_gpio_in(s->uic, 8);
- ppc405_dma_init(env, dma_irqs);
+ object_property_set_link(OBJECT(&s->dma), "cpu", OBJECT(&s->cpu),
+ &error_abort);
+ if (!sysbus_realize(SYS_BUS_DEVICE(&s->dma), errp)) {
+ return;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(s->dma.irqs); i++) {
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->dma), i,
+ qdev_get_gpio_in(s->uic, 5 + i));
+ }
/* I2C controller */
sysbus_create_simple(TYPE_PPC4xx_I2C, 0xef600500,
@@ -1561,6 +1576,11 @@ static void ppc405_soc_class_init(ObjectClass *oc, void
*data)
static const TypeInfo ppc405_types[] = {
{
+ .name = TYPE_PPC405_DMA,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(Ppc405DmaState),
+ .class_init = ppc405_dma_class_init,
+ }, {
.name = TYPE_PPC405_GPIO,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(Ppc405GpioState),
--
2.37.1
