*/
#include "qemu/osdep.h"
+#include "qapi/error.h"
#include "qemu/log.h"
#include "qemu/module.h"
#include "qemu/error-report.h"
static uint32_t sifive_plic_claim(SiFivePLICState *plic, uint32_t addrid)
{
int i, j;
+ uint32_t max_irq = 0;
+ uint32_t max_prio = plic->target_priority[addrid];
+
for (i = 0; i < plic->bitfield_words; i++) {
uint32_t pending_enabled_not_claimed =
(plic->pending[i] & ~plic->claimed[i]) &
int irq = (i << 5) + j;
uint32_t prio = plic->source_priority[irq];
int enabled = pending_enabled_not_claimed & (1 << j);
- if (enabled && prio > plic->target_priority[addrid]) {
- sifive_plic_set_pending(plic, irq, false);
- sifive_plic_set_claimed(plic, irq, true);
- return irq;
+ if (enabled && prio > max_prio) {
+ max_irq = irq;
+ max_prio = prio;
}
}
}
- return 0;
+
+ if (max_irq) {
+ sifive_plic_set_pending(plic, max_irq, false);
+ sifive_plic_set_claimed(plic, max_irq, true);
+ }
+ return max_irq;
}
static uint64_t sifive_plic_read(void *opaque, hwaddr addr, unsigned size)
plic->addr_config[addrid].hartid,
mode_to_char(plic->addr_config[addrid].mode),
value);
- sifive_plic_print_state(plic);
}
+ sifive_plic_update(plic);
return value;
}
}
qemu_log("plic: write priority: irq=%d priority=%d\n",
irq, plic->source_priority[irq]);
}
+ sifive_plic_update(plic);
return;
} else if (addr >= plic->pending_base && /* 1 bit per source */
addr < plic->pending_base + (plic->num_sources >> 3))
uint32_t context_base, uint32_t context_stride,
uint32_t aperture_size)
{
- DeviceState *dev = qdev_create(NULL, TYPE_SIFIVE_PLIC);
+ DeviceState *dev = qdev_new(TYPE_SIFIVE_PLIC);
assert(enable_stride == (enable_stride & -enable_stride));
assert(context_stride == (context_stride & -context_stride));
qdev_prop_set_string(dev, "hart-config", hart_config);
qdev_prop_set_uint32(dev, "context-base", context_base);
qdev_prop_set_uint32(dev, "context-stride", context_stride);
qdev_prop_set_uint32(dev, "aperture-size", aperture_size);
- qdev_init_nofail(dev);
+ sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, addr);
return dev;
}