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Re: [Qemu-devel] [PATCH v4 24/24] arm11mpcore: Split off RealView MPCore
From: |
Andreas Färber |
Subject: |
Re: [Qemu-devel] [PATCH v4 24/24] arm11mpcore: Split off RealView MPCore |
Date: |
Fri, 13 Sep 2013 17:40:10 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130801 Thunderbird/17.0.8 |
Am 13.09.2013 17:33, schrieb Peter Maydell:
> On 11 September 2013 15:37, Andreas Färber <address@hidden> wrote:
>> Signed-off-by: Andreas Färber <address@hidden>
>> ---
>> hw/cpu/Makefile.objs | 1 +
>> hw/cpu/arm11mpcore.c | 121 -----------------------------------------
>> hw/cpu/realview_mpcore.c | 139
>> +++++++++++++++++++++++++++++++++++++++++++++++
>> 3 files changed, 140 insertions(+), 121 deletions(-)
>> create mode 100644 hw/cpu/realview_mpcore.c
>>
>> diff --git a/hw/cpu/Makefile.objs b/hw/cpu/Makefile.objs
>> index df287c1..6381238 100644
>> --- a/hw/cpu/Makefile.objs
>> +++ b/hw/cpu/Makefile.objs
>> @@ -1,4 +1,5 @@
>> obj-$(CONFIG_ARM11MPCORE) += arm11mpcore.o
>> +obj-$(CONFIG_REALVIEW) += realview_mpcore.o
>> obj-$(CONFIG_A9MPCORE) += a9mpcore.o
>> obj-$(CONFIG_A15MPCORE) += a15mpcore.o
>> obj-$(CONFIG_ICC_BUS) += icc_bus.o
>> diff --git a/hw/cpu/arm11mpcore.c b/hw/cpu/arm11mpcore.c
>> index 0ec27c7..717d3e4 100644
>> --- a/hw/cpu/arm11mpcore.c
>> +++ b/hw/cpu/arm11mpcore.c
>> @@ -134,126 +134,6 @@ static void mpcore_priv_initfn(Object *obj)
>> qdev_set_parent_bus(DEVICE(&s->wdtimer), sysbus_get_default());
>> }
>>
>> -#define TYPE_REALVIEW_MPCORE_RIRQ "realview_mpcore"
>> -#define REALVIEW_MPCORE_RIRQ(obj) \
>> - OBJECT_CHECK(mpcore_rirq_state, (obj), TYPE_REALVIEW_MPCORE_RIRQ)
>> -
>> -/* Dummy PIC to route IRQ lines. The baseboard has 4 independent IRQ
>> - controllers. The output of these, plus some of the raw input lines
>> - are fed into a single SMP-aware interrupt controller on the CPU. */
>> -typedef struct {
>> - SysBusDevice parent_obj;
>> -
>> - qemu_irq cpuic[32];
>> - qemu_irq rvic[4][64];
>> - uint32_t num_cpu;
>> -
>> - ARM11MPCorePriveState priv;
>> - RealViewGICState gic[4];
>> -} mpcore_rirq_state;
>> -
>> -/* Map baseboard IRQs onto CPU IRQ lines. */
>> -static const int mpcore_irq_map[32] = {
>> - -1, -1, -1, -1, 1, 2, -1, -1,
>> - -1, -1, 6, -1, 4, 5, -1, -1,
>> - -1, 14, 15, 0, 7, 8, -1, -1,
>> - -1, -1, -1, -1, 9, 3, -1, -1,
>> -};
>> -
>> -static void mpcore_rirq_set_irq(void *opaque, int irq, int level)
>> -{
>> - mpcore_rirq_state *s = (mpcore_rirq_state *)opaque;
>> - int i;
>> -
>> - for (i = 0; i < 4; i++) {
>> - qemu_set_irq(s->rvic[i][irq], level);
>> - }
>> - if (irq < 32) {
>> - irq = mpcore_irq_map[irq];
>> - if (irq >= 0) {
>> - qemu_set_irq(s->cpuic[irq], level);
>> - }
>> - }
>> -}
>> -
>> -static void realview_mpcore_realize(DeviceState *dev, Error **errp)
>> -{
>> - SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
>> - mpcore_rirq_state *s = REALVIEW_MPCORE_RIRQ(dev);
>> - DeviceState *priv = DEVICE(&s->priv);
>> - DeviceState *gic;
>> - SysBusDevice *gicbusdev;
>> - Error *err = NULL;
>> - int n;
>> - int i;
>> -
>> - qdev_prop_set_uint32(priv, "num-cpu", s->num_cpu);
>> - object_property_set_bool(OBJECT(&s->priv), true, "realized", &err);
>> - if (err != NULL) {
>> - error_propagate(errp, err);
>> - return;
>> - }
>> - sysbus_pass_irq(sbd, SYS_BUS_DEVICE(&s->priv));
>> - for (i = 0; i < 32; i++) {
>> - s->cpuic[i] = qdev_get_gpio_in(priv, i);
>> - }
>> - /* ??? IRQ routing is hardcoded to "normal" mode. */
>> - for (n = 0; n < 4; n++) {
>> - object_property_set_bool(OBJECT(&s->gic[n]), true, "realized",
>> &err);
>> - if (err != NULL) {
>> - error_propagate(errp, err);
>> - return;
>> - }
>> - gic = DEVICE(&s->gic[n]);
>> - gicbusdev = SYS_BUS_DEVICE(&s->gic[n]);
>> - sysbus_mmio_map(gicbusdev, 0, 0x10040000 + n * 0x10000);
>> - sysbus_connect_irq(gicbusdev, 0, s->cpuic[10 + n]);
>> - for (i = 0; i < 64; i++) {
>> - s->rvic[n][i] = qdev_get_gpio_in(gic, i);
>> - }
>> - }
>> - qdev_init_gpio_in(dev, mpcore_rirq_set_irq, 64);
>> -}
>> -
>> -static void mpcore_rirq_init(Object *obj)
>> -{
>> - SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
>> - mpcore_rirq_state *s = REALVIEW_MPCORE_RIRQ(obj);
>> - SysBusDevice *privbusdev;
>> - int i;
>> -
>> - object_initialize(&s->priv, sizeof(s->priv), TYPE_ARM11MPCORE_PRIV);
>> - qdev_set_parent_bus(DEVICE(&s->priv), sysbus_get_default());
>> - privbusdev = SYS_BUS_DEVICE(&s->priv);
>> - sysbus_init_mmio(sbd, sysbus_mmio_get_region(privbusdev, 0));
>> -
>> - for (i = 0; i < 4; i++) {
>> - object_initialize(&s->gic[i], sizeof(s->gic[i]), TYPE_REALVIEW_GIC);
>> - qdev_set_parent_bus(DEVICE(&s->gic[i]), sysbus_get_default());
>> - }
>> -}
>> -
>> -static Property mpcore_rirq_properties[] = {
>> - DEFINE_PROP_UINT32("num-cpu", mpcore_rirq_state, num_cpu, 1),
>> - DEFINE_PROP_END_OF_LIST(),
>> -};
>> -
>> -static void mpcore_rirq_class_init(ObjectClass *klass, void *data)
>> -{
>> - DeviceClass *dc = DEVICE_CLASS(klass);
>> -
>> - dc->realize = realview_mpcore_realize;
>> - dc->props = mpcore_rirq_properties;
>> -}
>> -
>> -static const TypeInfo mpcore_rirq_info = {
>> - .name = TYPE_REALVIEW_MPCORE_RIRQ,
>> - .parent = TYPE_SYS_BUS_DEVICE,
>> - .instance_size = sizeof(mpcore_rirq_state),
>> - .instance_init = mpcore_rirq_init,
>> - .class_init = mpcore_rirq_class_init,
>> -};
>> -
>> static Property mpcore_priv_properties[] = {
>> DEFINE_PROP_UINT32("num-cpu", ARM11MPCorePriveState, num_cpu, 1),
>> /* The ARM11 MPCORE TRM says the on-chip controller may have
>> @@ -286,7 +166,6 @@ static const TypeInfo mpcore_priv_info = {
>>
>> static void arm11mpcore_register_types(void)
>> {
>> - type_register_static(&mpcore_rirq_info);
>> type_register_static(&mpcore_priv_info);
>> }
>>
>> diff --git a/hw/cpu/realview_mpcore.c b/hw/cpu/realview_mpcore.c
>> new file mode 100644
>> index 0000000..c39a2da
>> --- /dev/null
>> +++ b/hw/cpu/realview_mpcore.c
>> @@ -0,0 +1,139 @@
>> +/*
>> + * RealView ARM11MPCore internal peripheral emulation
>
> This isn't really internal to anything, or at least if
> properly modelled it shouldn't be. It's part of the
> board: as the comment notes there are 4 GIC instances
> on the board, which are wired up to the 11MPCore's
> internal GIC. Ideally it ought to be untangled and
> it shouldn't specifically own an 11MPCorePrivState
> object. That said, we were already mismodelling this
> I think so I'm happy to let this patch go through as-is.
>
>> + ARM11MPCorePriveState priv;
>
> You might add a patch somewhere fixing the typo
> (PriveState->PrivState).
Will do, thanks.
Background of the split is an investigation of dc->vmsd assignments for
my VMState RFC. Similar split-offs for board-private devices will
follow, e.g., musicpal.
Andreas
--
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg
- [Qemu-devel] [PATCH v4 07/24] a9mpcore: Embed ARMMPTimerState, (continued)
- [Qemu-devel] [PATCH v4 07/24] a9mpcore: Embed ARMMPTimerState, Andreas Färber, 2013/09/11
- [Qemu-devel] [PATCH v4 21/24] realview_gic: Prepare for QOM embedding, Andreas Färber, 2013/09/11
- [Qemu-devel] [PATCH v4 20/24] realview_gic: Convert to QOM realize, Andreas Färber, 2013/09/11
- [Qemu-devel] [PATCH v4 11/24] a15mpcore: Embed GICState, Andreas Färber, 2013/09/11
- [Qemu-devel] [PATCH v4 22/24] arm11mpcore: Convert mpcore_rirq_state to QOM realize, Andreas Färber, 2013/09/11
- [Qemu-devel] [PATCH v4 08/24] a9mpcore: Convert to QOM realize, Andreas Färber, 2013/09/11
- [Qemu-devel] [PATCH v4 10/24] a15mpcore: Split off instance_init, Andreas Färber, 2013/09/11
- [Qemu-devel] [PATCH v4 23/24] arm11mpcore: Prepare for QOM embedding, Andreas Färber, 2013/09/11
- [Qemu-devel] [PATCH v4 24/24] arm11mpcore: Split off RealView MPCore, Andreas Färber, 2013/09/11
- [Qemu-devel] [PATCH v4 01/24] a9mpcore: Split off instance_init, Andreas Färber, 2013/09/11
- Re: [Qemu-devel] [PATCH v4 00/24] arm: ARM11MPCore+A9MPCore+A15MPCore QOM'ification, Peter Maydell, 2013/09/13