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hw/arm/xlnx: Connect secondary CGEM IRQs 

The Cadence GEM peripherals as configured for Zynq MPSoC and Versal
platforms have two priority queues with separate interrupt sources for
each. If the interrupt source for the second priority queue is not
connected, they work in polling mode only. This change connects the
second interrupt source for platforms where it is available. This patch
has been tested using the lwIP stack with a Xilinx-supplied driver from
their embeddedsw repository.

Signed-off-by: Kinsey Moore <kinsey.moore@oarcorp.com>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Kinsey Moore 2023-06-16 09:38:03 -05:00 committed by Peter Maydell
parent e569d95933
commit 604b72dd3c
4 changed files with 23 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
hw/arm/xlnx-versal.c
View File

@ -258,14 +258,23 @@ static void versal_create_gems(Versal *s, qemu_irq *pic)
char *name = g_strdup_printf("gem%d", i);
DeviceState *dev;
MemoryRegion *mr;
OrIRQState *or_irq;
object_initialize_child(OBJECT(s), name, &s->lpd.iou.gem[i],
TYPE_CADENCE_GEM);
or_irq = &s->lpd.iou.gem_irq_orgate[i];
object_initialize_child(OBJECT(s), "gem-irq-orgate[*]",
or_irq, TYPE_OR_IRQ);
dev = DEVICE(&s->lpd.iou.gem[i]);
qemu_configure_nic_device(dev, true, NULL);
object_property_set_int(OBJECT(dev), "phy-addr", 23, &error_abort);
object_property_set_int(OBJECT(dev), "num-priority-queues", 2,
&error_abort);
object_property_set_int(OBJECT(or_irq),
"num-lines", 2, &error_fatal);
qdev_realize(DEVICE(or_irq), NULL, &error_fatal);
qdev_connect_gpio_out(DEVICE(or_irq), 0, pic[irqs[i]]);
object_property_set_link(OBJECT(dev), "dma", OBJECT(&s->mr_ps),
&error_abort);
sysbus_realize(SYS_BUS_DEVICE(dev), &error_fatal);
@ -273,7 +282,8 @@ static void versal_create_gems(Versal *s, qemu_irq *pic)
mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0);
memory_region_add_subregion(&s->mr_ps, addrs[i], mr);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[irqs[i]]);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, qdev_get_gpio_in(DEVICE(or_irq), 0));
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 1, qdev_get_gpio_in(DEVICE(or_irq), 1));
g_free(name);
}
}

11
hw/arm/xlnx-zynqmp.c
View File

@ -394,6 +394,8 @@ static void xlnx_zynqmp_init(Object *obj)
for (i = 0; i < XLNX_ZYNQMP_NUM_GEMS; i++) {
object_initialize_child(obj, "gem[*]", &s->gem[i], TYPE_CADENCE_GEM);
object_initialize_child(obj, "gem-irq-orgate[*]",
&s->gem_irq_orgate[i], TYPE_OR_IRQ);
}
for (i = 0; i < XLNX_ZYNQMP_NUM_UARTS; i++) {
@ -625,12 +627,19 @@ static void xlnx_zynqmp_realize(DeviceState *dev, Error **errp)
&error_abort);
object_property_set_int(OBJECT(&s->gem[i]), "num-priority-queues", 2,
&error_abort);
object_property_set_int(OBJECT(&s->gem_irq_orgate[i]),
"num-lines", 2, &error_fatal);
qdev_realize(DEVICE(&s->gem_irq_orgate[i]), NULL, &error_fatal);
qdev_connect_gpio_out(DEVICE(&s->gem_irq_orgate[i]), 0, gic_spi[gem_intr[i]]);
if (!sysbus_realize(SYS_BUS_DEVICE(&s->gem[i]), errp)) {
return;
}
sysbus_mmio_map(SYS_BUS_DEVICE(&s->gem[i]), 0, gem_addr[i]);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->gem[i]), 0,
gic_spi[gem_intr[i]]);
qdev_get_gpio_in(DEVICE(&s->gem_irq_orgate[i]), 0));
sysbus_connect_irq(SYS_BUS_DEVICE(&s->gem[i]), 1,
qdev_get_gpio_in(DEVICE(&s->gem_irq_orgate[i]), 1));
}
for (i = 0; i < XLNX_ZYNQMP_NUM_UARTS; i++) {

1
include/hw/arm/xlnx-versal.h
View File

@ -78,6 +78,7 @@ struct Versal {
struct {
PL011State uart[XLNX_VERSAL_NR_UARTS];
CadenceGEMState gem[XLNX_VERSAL_NR_GEMS];
OrIRQState gem_irq_orgate[XLNX_VERSAL_NR_GEMS];
XlnxZDMA adma[XLNX_VERSAL_NR_ADMAS];
VersalUsb2 usb;
CanBusState *canbus[XLNX_VERSAL_NR_CANFD];

1
include/hw/arm/xlnx-zynqmp.h
View File

@ -116,6 +116,7 @@ struct XlnxZynqMPState {
MemoryRegion mr_unimp[XLNX_ZYNQMP_NUM_UNIMP_AREAS];
CadenceGEMState gem[XLNX_ZYNQMP_NUM_GEMS];
OrIRQState gem_irq_orgate[XLNX_ZYNQMP_NUM_GEMS];
CadenceUARTState uart[XLNX_ZYNQMP_NUM_UARTS];
XlnxZynqMPCANState can[XLNX_ZYNQMP_NUM_CAN];
SysbusAHCIState sata;