| Message ID | 20170118220146.489-5-marex@denx.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
I know this has been committed already, but here goes anyway: Marek Vasut <marex@denx.de> writes: > From: Chris Wulff <crwulff@gmail.com> > > Add the Altera Nios2 internal interrupt controller model. > > Signed-off-by: Marek Vasut <marex@denx.de> > Cc: Chris Wulff <crwulff@gmail.com> > Cc: Jeff Da Silva <jdasilva@altera.com> > Cc: Ley Foon Tan <lftan@altera.com> > Cc: Sandra Loosemore <sandra@codesourcery.com> > Cc: Yves Vandervennet <yvanderv@altera.com> > Cc: Alexander Graf <agraf@suse.de> > Cc: Richard Henderson <rth@twiddle.net> > Reviewed-by: Alexander Graf <agraf@suse.de> > --- > V3: Checkpatch cleanup > V4: Rebase on top of qemu/master > V5: Rebase on top of qemu/master > --- > hw/intc/Makefile.objs | 1 + > hw/intc/nios2_iic.c | 103 ++++++++++++++++++++++++++++++++++++++++++++++++++ > 2 files changed, 104 insertions(+) > create mode 100644 hw/intc/nios2_iic.c > > diff --git a/hw/intc/Makefile.objs b/hw/intc/Makefile.objs > index 2f44a2da26..8948106ac4 100644 > --- a/hw/intc/Makefile.objs > +++ b/hw/intc/Makefile.objs > @@ -41,3 +41,4 @@ obj-$(CONFIG_S390_FLIC_KVM) += s390_flic_kvm.o > obj-$(CONFIG_ASPEED_SOC) += aspeed_vic.o > obj-$(CONFIG_ARM_GIC) += arm_gicv3_cpuif.o > obj-$(CONFIG_MIPS_CPS) += mips_gic.o > +obj-$(CONFIG_NIOS2) += nios2_iic.o > diff --git a/hw/intc/nios2_iic.c b/hw/intc/nios2_iic.c > new file mode 100644 > index 0000000000..818ab1b315 > --- /dev/null > +++ b/hw/intc/nios2_iic.c > @@ -0,0 +1,103 @@ > +/* > + * QEMU Altera Internal Interrupt Controller. > + * > + * Copyright (c) 2012 Chris Wulff <crwulff@gmail.com> > + * > + * This library is free software; you can redistribute it and/or > + * modify it under the terms of the GNU Lesser General Public > + * License as published by the Free Software Foundation; either > + * version 2.1 of the License, or (at your option) any later version. > + * > + * This library is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * Lesser General Public License for more details. > + * > + * You should have received a copy of the GNU Lesser General Public > + * License along with this library; if not, see > + * <http://www.gnu.org/licenses/lgpl-2.1.html> > + */ > + > +#include "qemu/osdep.h" > +#include "qemu-common.h" > +#include "qapi/error.h" > + > +#include "hw/sysbus.h" > +#include "cpu.h" > + > +#define TYPE_ALTERA_IIC "altera,iic" > +#define ALTERA_IIC(obj) \ > + OBJECT_CHECK(AlteraIIC, (obj), TYPE_ALTERA_IIC) > + > +typedef struct AlteraIIC { > + SysBusDevice parent_obj; > + void *cpu; > + qemu_irq parent_irq; > +} AlteraIIC; > + > +static void update_irq(AlteraIIC *pv) > +{ > + CPUNios2State *env = &((Nios2CPU *)(pv->cpu))->env; > + > + qemu_set_irq(pv->parent_irq, > + env->regs[CR_IPENDING] & env->regs[CR_IENABLE]); > +} > + > +static void irq_handler(void *opaque, int irq, int level) > +{ > + AlteraIIC *pv = opaque; > + CPUNios2State *env = &((Nios2CPU *)(pv->cpu))->env; > + > + env->regs[CR_IPENDING] &= ~(1 << irq); > + env->regs[CR_IPENDING] |= !!level << irq; > + > + update_irq(pv); > +} > + > +static void altera_iic_init(Object *obj) > +{ > + AlteraIIC *pv = ALTERA_IIC(obj); > + > + qdev_init_gpio_in(DEVICE(pv), irq_handler, 32); > + sysbus_init_irq(SYS_BUS_DEVICE(obj), &pv->parent_irq); > +} > + > +static Property altera_iic_properties[] = { > + DEFINE_PROP_PTR("cpu", AlteraIIC, cpu), Could this be a QOM link instead? We want to get rid of pointer properties. Commit d2fe4ec converts one to a link. > + DEFINE_PROP_END_OF_LIST(), > +}; > + > +static void altera_iic_realize(DeviceState *dev, Error **errp) > +{ > + struct AlteraIIC *pv = ALTERA_IIC(dev); > + > + if (!pv->cpu) { > + error_setg(errp, "altera,iic: CPU not connected"); > + return; > + } > +} > + > +static void altera_iic_class_init(ObjectClass *klass, void *data) > +{ > + DeviceClass *dc = DEVICE_CLASS(klass); > + > + dc->props = altera_iic_properties; > + /* Reason: pointer property "cpu" */ > + dc->cannot_instantiate_with_device_add_yet = true; > + dc->realize = altera_iic_realize; > +} > + > +static TypeInfo altera_iic_info = { > + .name = "altera,iic", > + .parent = TYPE_SYS_BUS_DEVICE, > + .instance_size = sizeof(AlteraIIC), > + .instance_init = altera_iic_init, > + .class_init = altera_iic_class_init, > +}; > + > +static void altera_iic_register(void) > +{ > + type_register_static(&altera_iic_info); > +} > + > +type_init(altera_iic_register)
On 02/22/2017 07:31 AM, Markus Armbruster wrote: > I know this has been committed already, but here goes anyway: > > Marek Vasut <marex@denx.de> writes: > >> From: Chris Wulff <crwulff@gmail.com> >> >> Add the Altera Nios2 internal interrupt controller model. >> >> Signed-off-by: Marek Vasut <marex@denx.de> >> Cc: Chris Wulff <crwulff@gmail.com> >> Cc: Jeff Da Silva <jdasilva@altera.com> >> Cc: Ley Foon Tan <lftan@altera.com> >> Cc: Sandra Loosemore <sandra@codesourcery.com> >> Cc: Yves Vandervennet <yvanderv@altera.com> >> Cc: Alexander Graf <agraf@suse.de> >> Cc: Richard Henderson <rth@twiddle.net> >> Reviewed-by: Alexander Graf <agraf@suse.de> >> --- >> V3: Checkpatch cleanup >> V4: Rebase on top of qemu/master >> V5: Rebase on top of qemu/master >> --- >> hw/intc/Makefile.objs | 1 + >> hw/intc/nios2_iic.c | 103 ++++++++++++++++++++++++++++++++++++++++++++++++++ >> 2 files changed, 104 insertions(+) >> create mode 100644 hw/intc/nios2_iic.c >> >> diff --git a/hw/intc/Makefile.objs b/hw/intc/Makefile.objs >> index 2f44a2da26..8948106ac4 100644 >> --- a/hw/intc/Makefile.objs >> +++ b/hw/intc/Makefile.objs >> @@ -41,3 +41,4 @@ obj-$(CONFIG_S390_FLIC_KVM) += s390_flic_kvm.o >> obj-$(CONFIG_ASPEED_SOC) += aspeed_vic.o >> obj-$(CONFIG_ARM_GIC) += arm_gicv3_cpuif.o >> obj-$(CONFIG_MIPS_CPS) += mips_gic.o >> +obj-$(CONFIG_NIOS2) += nios2_iic.o >> diff --git a/hw/intc/nios2_iic.c b/hw/intc/nios2_iic.c >> new file mode 100644 >> index 0000000000..818ab1b315 >> --- /dev/null >> +++ b/hw/intc/nios2_iic.c >> @@ -0,0 +1,103 @@ >> +/* >> + * QEMU Altera Internal Interrupt Controller. >> + * >> + * Copyright (c) 2012 Chris Wulff <crwulff@gmail.com> >> + * >> + * This library is free software; you can redistribute it and/or >> + * modify it under the terms of the GNU Lesser General Public >> + * License as published by the Free Software Foundation; either >> + * version 2.1 of the License, or (at your option) any later version. >> + * >> + * This library is distributed in the hope that it will be useful, >> + * but WITHOUT ANY WARRANTY; without even the implied warranty of >> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU >> + * Lesser General Public License for more details. >> + * >> + * You should have received a copy of the GNU Lesser General Public >> + * License along with this library; if not, see >> + * <http://www.gnu.org/licenses/lgpl-2.1.html> >> + */ >> + >> +#include "qemu/osdep.h" >> +#include "qemu-common.h" >> +#include "qapi/error.h" >> + >> +#include "hw/sysbus.h" >> +#include "cpu.h" >> + >> +#define TYPE_ALTERA_IIC "altera,iic" >> +#define ALTERA_IIC(obj) \ >> + OBJECT_CHECK(AlteraIIC, (obj), TYPE_ALTERA_IIC) >> + >> +typedef struct AlteraIIC { >> + SysBusDevice parent_obj; >> + void *cpu; >> + qemu_irq parent_irq; >> +} AlteraIIC; >> + >> +static void update_irq(AlteraIIC *pv) >> +{ >> + CPUNios2State *env = &((Nios2CPU *)(pv->cpu))->env; >> + >> + qemu_set_irq(pv->parent_irq, >> + env->regs[CR_IPENDING] & env->regs[CR_IENABLE]); >> +} >> + >> +static void irq_handler(void *opaque, int irq, int level) >> +{ >> + AlteraIIC *pv = opaque; >> + CPUNios2State *env = &((Nios2CPU *)(pv->cpu))->env; >> + >> + env->regs[CR_IPENDING] &= ~(1 << irq); >> + env->regs[CR_IPENDING] |= !!level << irq; >> + >> + update_irq(pv); >> +} >> + >> +static void altera_iic_init(Object *obj) >> +{ >> + AlteraIIC *pv = ALTERA_IIC(obj); >> + >> + qdev_init_gpio_in(DEVICE(pv), irq_handler, 32); >> + sysbus_init_irq(SYS_BUS_DEVICE(obj), &pv->parent_irq); >> +} >> + >> +static Property altera_iic_properties[] = { >> + DEFINE_PROP_PTR("cpu", AlteraIIC, cpu), > > Could this be a QOM link instead? > > We want to get rid of pointer properties. Commit d2fe4ec converts one > to a link. By all means, yes. Can you send a patch ? I can help testing it. Otherwise I can cook one up, but it might take a few days.
Marek Vasut <marex@denx.de> writes: > On 02/22/2017 07:31 AM, Markus Armbruster wrote: >> I know this has been committed already, but here goes anyway: >> >> Marek Vasut <marex@denx.de> writes: >> >>> From: Chris Wulff <crwulff@gmail.com> >>> >>> Add the Altera Nios2 internal interrupt controller model. >>> >>> Signed-off-by: Marek Vasut <marex@denx.de> >>> Cc: Chris Wulff <crwulff@gmail.com> >>> Cc: Jeff Da Silva <jdasilva@altera.com> >>> Cc: Ley Foon Tan <lftan@altera.com> >>> Cc: Sandra Loosemore <sandra@codesourcery.com> >>> Cc: Yves Vandervennet <yvanderv@altera.com> >>> Cc: Alexander Graf <agraf@suse.de> >>> Cc: Richard Henderson <rth@twiddle.net> >>> Reviewed-by: Alexander Graf <agraf@suse.de> >>> --- >>> V3: Checkpatch cleanup >>> V4: Rebase on top of qemu/master >>> V5: Rebase on top of qemu/master >>> --- >>> hw/intc/Makefile.objs | 1 + >>> hw/intc/nios2_iic.c | 103 ++++++++++++++++++++++++++++++++++++++++++++++++++ >>> 2 files changed, 104 insertions(+) >>> create mode 100644 hw/intc/nios2_iic.c >>> >>> diff --git a/hw/intc/Makefile.objs b/hw/intc/Makefile.objs >>> index 2f44a2da26..8948106ac4 100644 >>> --- a/hw/intc/Makefile.objs >>> +++ b/hw/intc/Makefile.objs [...] >>> +static Property altera_iic_properties[] = { >>> + DEFINE_PROP_PTR("cpu", AlteraIIC, cpu), >> >> Could this be a QOM link instead? >> >> We want to get rid of pointer properties. Commit d2fe4ec converts one >> to a link. > > By all means, yes. Can you send a patch ? I can help testing it. > Otherwise I can cook one up, but it might take a few days. I'm in a bit of a time squeeze right now, and I'd be grateful if you could do it. A few days sounds great to me.
On 02/22/2017 07:31 PM, Markus Armbruster wrote: > Marek Vasut <marex@denx.de> writes: > >> On 02/22/2017 07:31 AM, Markus Armbruster wrote: >>> I know this has been committed already, but here goes anyway: >>> >>> Marek Vasut <marex@denx.de> writes: >>> >>>> From: Chris Wulff <crwulff@gmail.com> >>>> >>>> Add the Altera Nios2 internal interrupt controller model. >>>> >>>> Signed-off-by: Marek Vasut <marex@denx.de> >>>> Cc: Chris Wulff <crwulff@gmail.com> >>>> Cc: Jeff Da Silva <jdasilva@altera.com> >>>> Cc: Ley Foon Tan <lftan@altera.com> >>>> Cc: Sandra Loosemore <sandra@codesourcery.com> >>>> Cc: Yves Vandervennet <yvanderv@altera.com> >>>> Cc: Alexander Graf <agraf@suse.de> >>>> Cc: Richard Henderson <rth@twiddle.net> >>>> Reviewed-by: Alexander Graf <agraf@suse.de> >>>> --- >>>> V3: Checkpatch cleanup >>>> V4: Rebase on top of qemu/master >>>> V5: Rebase on top of qemu/master >>>> --- >>>> hw/intc/Makefile.objs | 1 + >>>> hw/intc/nios2_iic.c | 103 ++++++++++++++++++++++++++++++++++++++++++++++++++ >>>> 2 files changed, 104 insertions(+) >>>> create mode 100644 hw/intc/nios2_iic.c >>>> >>>> diff --git a/hw/intc/Makefile.objs b/hw/intc/Makefile.objs >>>> index 2f44a2da26..8948106ac4 100644 >>>> --- a/hw/intc/Makefile.objs >>>> +++ b/hw/intc/Makefile.objs > [...] >>>> +static Property altera_iic_properties[] = { >>>> + DEFINE_PROP_PTR("cpu", AlteraIIC, cpu), >>> >>> Could this be a QOM link instead? >>> >>> We want to get rid of pointer properties. Commit d2fe4ec converts one >>> to a link. >> >> By all means, yes. Can you send a patch ? I can help testing it. >> Otherwise I can cook one up, but it might take a few days. > > I'm in a bit of a time squeeze right now, and I'd be grateful if you > could do it. A few days sounds great to me. Heh, tell me about this time squeeze ...
diff --git a/hw/intc/Makefile.objs b/hw/intc/Makefile.objs index 2f44a2da26..8948106ac4 100644 --- a/hw/intc/Makefile.objs +++ b/hw/intc/Makefile.objs @@ -41,3 +41,4 @@ obj-$(CONFIG_S390_FLIC_KVM) += s390_flic_kvm.o obj-$(CONFIG_ASPEED_SOC) += aspeed_vic.o obj-$(CONFIG_ARM_GIC) += arm_gicv3_cpuif.o obj-$(CONFIG_MIPS_CPS) += mips_gic.o +obj-$(CONFIG_NIOS2) += nios2_iic.o diff --git a/hw/intc/nios2_iic.c b/hw/intc/nios2_iic.c new file mode 100644 index 0000000000..818ab1b315 --- /dev/null +++ b/hw/intc/nios2_iic.c @@ -0,0 +1,103 @@ +/* + * QEMU Altera Internal Interrupt Controller. + * + * Copyright (c) 2012 Chris Wulff <crwulff@gmail.com> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see + * <http://www.gnu.org/licenses/lgpl-2.1.html> + */ + +#include "qemu/osdep.h" +#include "qemu-common.h" +#include "qapi/error.h" + +#include "hw/sysbus.h" +#include "cpu.h" + +#define TYPE_ALTERA_IIC "altera,iic" +#define ALTERA_IIC(obj) \ + OBJECT_CHECK(AlteraIIC, (obj), TYPE_ALTERA_IIC) + +typedef struct AlteraIIC { + SysBusDevice parent_obj; + void *cpu; + qemu_irq parent_irq; +} AlteraIIC; + +static void update_irq(AlteraIIC *pv) +{ + CPUNios2State *env = &((Nios2CPU *)(pv->cpu))->env; + + qemu_set_irq(pv->parent_irq, + env->regs[CR_IPENDING] & env->regs[CR_IENABLE]); +} + +static void irq_handler(void *opaque, int irq, int level) +{ + AlteraIIC *pv = opaque; + CPUNios2State *env = &((Nios2CPU *)(pv->cpu))->env; + + env->regs[CR_IPENDING] &= ~(1 << irq); + env->regs[CR_IPENDING] |= !!level << irq; + + update_irq(pv); +} + +static void altera_iic_init(Object *obj) +{ + AlteraIIC *pv = ALTERA_IIC(obj); + + qdev_init_gpio_in(DEVICE(pv), irq_handler, 32); + sysbus_init_irq(SYS_BUS_DEVICE(obj), &pv->parent_irq); +} + +static Property altera_iic_properties[] = { + DEFINE_PROP_PTR("cpu", AlteraIIC, cpu), + DEFINE_PROP_END_OF_LIST(), +}; + +static void altera_iic_realize(DeviceState *dev, Error **errp) +{ + struct AlteraIIC *pv = ALTERA_IIC(dev); + + if (!pv->cpu) { + error_setg(errp, "altera,iic: CPU not connected"); + return; + } +} + +static void altera_iic_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + dc->props = altera_iic_properties; + /* Reason: pointer property "cpu" */ + dc->cannot_instantiate_with_device_add_yet = true; + dc->realize = altera_iic_realize; +} + +static TypeInfo altera_iic_info = { + .name = "altera,iic", + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(AlteraIIC), + .instance_init = altera_iic_init, + .class_init = altera_iic_class_init, +}; + +static void altera_iic_register(void) +{ + type_register_static(&altera_iic_info); +} + +type_init(altera_iic_register)