diff options
Diffstat (limited to 'hw/intc/sifive_plic.c')
| -rw-r--r-- | hw/intc/sifive_plic.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/hw/intc/sifive_plic.c b/hw/intc/sifive_plic.c index 1edeb1e1ed..1a792cc3f5 100644 --- a/hw/intc/sifive_plic.c +++ b/hw/intc/sifive_plic.c @@ -140,7 +140,7 @@ static uint64_t sifive_plic_read(void *opaque, hwaddr addr, unsigned size) SiFivePLICState *plic = opaque; if (addr_between(addr, plic->priority_base, plic->num_sources << 2)) { - uint32_t irq = ((addr - plic->priority_base) >> 2) + 1; + uint32_t irq = (addr - plic->priority_base) >> 2; return plic->source_priority[irq]; } else if (addr_between(addr, plic->pending_base, plic->num_sources >> 3)) { @@ -187,7 +187,7 @@ static void sifive_plic_write(void *opaque, hwaddr addr, uint64_t value, SiFivePLICState *plic = opaque; if (addr_between(addr, plic->priority_base, plic->num_sources << 2)) { - uint32_t irq = ((addr - plic->priority_base) >> 2) + 1; + uint32_t irq = (addr - plic->priority_base) >> 2; if (((plic->num_priorities + 1) & plic->num_priorities) == 0) { /* @@ -428,6 +428,7 @@ static Property sifive_plic_properties[] = { /* number of interrupt sources including interrupt source 0 */ DEFINE_PROP_UINT32("num-sources", SiFivePLICState, num_sources, 1), DEFINE_PROP_UINT32("num-priorities", SiFivePLICState, num_priorities, 0), + /* interrupt priority register base starting from source 0 */ DEFINE_PROP_UINT32("priority-base", SiFivePLICState, priority_base, 0), DEFINE_PROP_UINT32("pending-base", SiFivePLICState, pending_base, 0), DEFINE_PROP_UINT32("enable-base", SiFivePLICState, enable_base, 0), |