qemu-e2k/hw/m68k/mcf_intc.c

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/*
* ColdFire Interrupt Controller emulation.
*
* Copyright (c) 2007 CodeSourcery.
*
* This code is licensed under the GPL
*/
#include "qemu/osdep.h"
qdev: Convert uses of qdev_create() with Coccinelle This is the transformation explained in the commit before previous. Takes care of just one pattern that needs conversion. More to come in this series. Coccinelle script: @ depends on !(file in "hw/arm/highbank.c")@ expression bus, type_name, dev, expr; @@ - dev = qdev_create(bus, type_name); + dev = qdev_new(type_name); ... when != dev = expr - qdev_init_nofail(dev); + qdev_realize_and_unref(dev, bus, &error_fatal); @@ expression bus, type_name, dev, expr; identifier DOWN; @@ - dev = DOWN(qdev_create(bus, type_name)); + dev = DOWN(qdev_new(type_name)); ... when != dev = expr - qdev_init_nofail(DEVICE(dev)); + qdev_realize_and_unref(DEVICE(dev), bus, &error_fatal); @@ expression bus, type_name, expr; identifier dev; @@ - DeviceState *dev = qdev_create(bus, type_name); + DeviceState *dev = qdev_new(type_name); ... when != dev = expr - qdev_init_nofail(dev); + qdev_realize_and_unref(dev, bus, &error_fatal); @@ expression bus, type_name, dev, expr, errp; symbol true; @@ - dev = qdev_create(bus, type_name); + dev = qdev_new(type_name); ... when != dev = expr - object_property_set_bool(OBJECT(dev), true, "realized", errp); + qdev_realize_and_unref(dev, bus, errp); @@ expression bus, type_name, expr, errp; identifier dev; symbol true; @@ - DeviceState *dev = qdev_create(bus, type_name); + DeviceState *dev = qdev_new(type_name); ... when != dev = expr - object_property_set_bool(OBJECT(dev), true, "realized", errp); + qdev_realize_and_unref(dev, bus, errp); The first rule exempts hw/arm/highbank.c, because it matches along two control flow paths there, with different @type_name. Covered by the next commit's manual conversions. Missing #include "qapi/error.h" added manually. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20200610053247.1583243-10-armbru@redhat.com> [Conflicts in hw/misc/empty_slot.c and hw/sparc/leon3.c resolved]
2020-06-10 07:31:58 +02:00
#include "qapi/error.h"
#include "qemu/module.h"
#include "qemu/log.h"
#include "cpu.h"
#include "hw/irq.h"
#include "hw/sysbus.h"
#include "hw/m68k/mcf.h"
#include "qom/object.h"
#define TYPE_MCF_INTC "mcf-intc"
OBJECT_DECLARE_SIMPLE_TYPE(mcf_intc_state, MCF_INTC)
struct mcf_intc_state {
SysBusDevice parent_obj;
MemoryRegion iomem;
uint64_t ipr;
uint64_t imr;
uint64_t ifr;
uint64_t enabled;
uint8_t icr[64];
M68kCPU *cpu;
int active_vector;
};
static void mcf_intc_update(mcf_intc_state *s)
{
uint64_t active;
int i;
int best;
int best_level;
active = (s->ipr | s->ifr) & s->enabled & ~s->imr;
best_level = 0;
best = 64;
if (active) {
for (i = 0; i < 64; i++) {
if ((active & 1) != 0 && s->icr[i] >= best_level) {
best_level = s->icr[i];
best = i;
}
active >>= 1;
}
}
s->active_vector = ((best == 64) ? 24 : (best + 64));
m68k_set_irq_level(s->cpu, best_level, s->active_vector);
}
static uint64_t mcf_intc_read(void *opaque, hwaddr addr,
unsigned size)
{
int offset;
mcf_intc_state *s = (mcf_intc_state *)opaque;
offset = addr & 0xff;
if (offset >= 0x40 && offset < 0x80) {
return s->icr[offset - 0x40];
}
switch (offset) {
case 0x00:
return (uint32_t)(s->ipr >> 32);
case 0x04:
return (uint32_t)s->ipr;
case 0x08:
return (uint32_t)(s->imr >> 32);
case 0x0c:
return (uint32_t)s->imr;
case 0x10:
return (uint32_t)(s->ifr >> 32);
case 0x14:
return (uint32_t)s->ifr;
case 0xe0: /* SWIACK. */
return s->active_vector;
case 0xe1: case 0xe2: case 0xe3: case 0xe4:
case 0xe5: case 0xe6: case 0xe7:
/* LnIACK */
qemu_log_mask(LOG_UNIMP, "%s: LnIACK not implemented (offset 0x%02x)\n",
__func__, offset);
/* fallthru */
default:
return 0;
}
}
static void mcf_intc_write(void *opaque, hwaddr addr,
uint64_t val, unsigned size)
{
int offset;
mcf_intc_state *s = (mcf_intc_state *)opaque;
offset = addr & 0xff;
if (offset >= 0x40 && offset < 0x80) {
int n = offset - 0x40;
s->icr[n] = val;
if (val == 0)
s->enabled &= ~(1ull << n);
else
s->enabled |= (1ull << n);
mcf_intc_update(s);
return;
}
switch (offset) {
case 0x00: case 0x04:
/* Ignore IPR writes. */
return;
case 0x08:
s->imr = (s->imr & 0xffffffff) | ((uint64_t)val << 32);
break;
case 0x0c:
s->imr = (s->imr & 0xffffffff00000000ull) | (uint32_t)val;
break;
case 0x1c:
if (val & 0x40) {
s->imr = ~0ull;
} else {
s->imr |= (0x1ull << (val & 0x3f));
}
break;
case 0x1d:
if (val & 0x40) {
s->imr = 0ull;
} else {
s->imr &= ~(0x1ull << (val & 0x3f));
}
break;
default:
qemu_log_mask(LOG_GUEST_ERROR, "%s: Bad offset 0x%02x\n",
__func__, offset);
return;
}
mcf_intc_update(s);
}
static void mcf_intc_set_irq(void *opaque, int irq, int level)
{
mcf_intc_state *s = (mcf_intc_state *)opaque;
if (irq >= 64)
return;
if (level)
s->ipr |= 1ull << irq;
else
s->ipr &= ~(1ull << irq);
mcf_intc_update(s);
}
static void mcf_intc_reset(DeviceState *dev)
{
mcf_intc_state *s = MCF_INTC(dev);
s->imr = ~0ull;
s->ipr = 0;
s->ifr = 0;
s->enabled = 0;
memset(s->icr, 0, 64);
s->active_vector = 24;
}
static const MemoryRegionOps mcf_intc_ops = {
.read = mcf_intc_read,
.write = mcf_intc_write,
.endianness = DEVICE_NATIVE_ENDIAN,
};
static void mcf_intc_instance_init(Object *obj)
{
mcf_intc_state *s = MCF_INTC(obj);
memory_region_init_io(&s->iomem, obj, &mcf_intc_ops, s, "mcf", 0x100);
}
static void mcf_intc_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
set_bit(DEVICE_CATEGORY_MISC, dc->categories);
dc->reset = mcf_intc_reset;
}
static const TypeInfo mcf_intc_gate_info = {
.name = TYPE_MCF_INTC,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(mcf_intc_state),
.instance_init = mcf_intc_instance_init,
.class_init = mcf_intc_class_init,
};
static void mcf_intc_register_types(void)
{
type_register_static(&mcf_intc_gate_info);
}
type_init(mcf_intc_register_types)
qemu_irq *mcf_intc_init(MemoryRegion *sysmem,
hwaddr base,
M68kCPU *cpu)
{
DeviceState *dev;
mcf_intc_state *s;
qdev: Convert uses of qdev_create() with Coccinelle This is the transformation explained in the commit before previous. Takes care of just one pattern that needs conversion. More to come in this series. Coccinelle script: @ depends on !(file in "hw/arm/highbank.c")@ expression bus, type_name, dev, expr; @@ - dev = qdev_create(bus, type_name); + dev = qdev_new(type_name); ... when != dev = expr - qdev_init_nofail(dev); + qdev_realize_and_unref(dev, bus, &error_fatal); @@ expression bus, type_name, dev, expr; identifier DOWN; @@ - dev = DOWN(qdev_create(bus, type_name)); + dev = DOWN(qdev_new(type_name)); ... when != dev = expr - qdev_init_nofail(DEVICE(dev)); + qdev_realize_and_unref(DEVICE(dev), bus, &error_fatal); @@ expression bus, type_name, expr; identifier dev; @@ - DeviceState *dev = qdev_create(bus, type_name); + DeviceState *dev = qdev_new(type_name); ... when != dev = expr - qdev_init_nofail(dev); + qdev_realize_and_unref(dev, bus, &error_fatal); @@ expression bus, type_name, dev, expr, errp; symbol true; @@ - dev = qdev_create(bus, type_name); + dev = qdev_new(type_name); ... when != dev = expr - object_property_set_bool(OBJECT(dev), true, "realized", errp); + qdev_realize_and_unref(dev, bus, errp); @@ expression bus, type_name, expr, errp; identifier dev; symbol true; @@ - DeviceState *dev = qdev_create(bus, type_name); + DeviceState *dev = qdev_new(type_name); ... when != dev = expr - object_property_set_bool(OBJECT(dev), true, "realized", errp); + qdev_realize_and_unref(dev, bus, errp); The first rule exempts hw/arm/highbank.c, because it matches along two control flow paths there, with different @type_name. Covered by the next commit's manual conversions. Missing #include "qapi/error.h" added manually. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20200610053247.1583243-10-armbru@redhat.com> [Conflicts in hw/misc/empty_slot.c and hw/sparc/leon3.c resolved]
2020-06-10 07:31:58 +02:00
dev = qdev_new(TYPE_MCF_INTC);
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
s = MCF_INTC(dev);
s->cpu = cpu;
memory_region_add_subregion(sysmem, base, &s->iomem);
return qemu_allocate_irqs(mcf_intc_set_irq, s, 64);
}