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[PATCH v2 1/9] hw/intc: sifive_plic: Add a reset function
From: |
Alistair Francis |
Subject: |
[PATCH v2 1/9] hw/intc: sifive_plic: Add a reset function |
Date: |
Thu, 16 Dec 2021 14:54:19 +1000 |
From: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
---
hw/intc/sifive_plic.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/hw/intc/sifive_plic.c b/hw/intc/sifive_plic.c
index 877e76877c..a9f7a1bfb0 100644
--- a/hw/intc/sifive_plic.c
+++ b/hw/intc/sifive_plic.c
@@ -355,6 +355,23 @@ static const MemoryRegionOps sifive_plic_ops = {
}
};
+static void sifive_plic_reset(DeviceState *dev)
+{
+ SiFivePLICState *s = SIFIVE_PLIC(dev);
+ int i;
+
+ memset(s->source_priority, 0, sizeof(uint32_t) * s->num_sources);
+ memset(s->target_priority, 0, sizeof(uint32_t) * s->num_addrs);
+ memset(s->pending, 0, sizeof(uint32_t) * s->bitfield_words);
+ memset(s->claimed, 0, sizeof(uint32_t) * s->bitfield_words);
+ memset(s->enable, 0, sizeof(uint32_t) * s->num_enables);
+
+ for (i = 0; i < s->num_harts; i++) {
+ qemu_set_irq(s->m_external_irqs[i], 0);
+ qemu_set_irq(s->s_external_irqs[i], 0);
+ }
+}
+
/*
* parse PLIC hart/mode address offset config
*
@@ -501,6 +518,7 @@ static void sifive_plic_class_init(ObjectClass *klass, void
*data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
+ dc->reset = sifive_plic_reset;
device_class_set_props(dc, sifive_plic_properties);
dc->realize = sifive_plic_realize;
dc->vmsd = &vmstate_sifive_plic;
--
2.31.1
- [PATCH v2 0/9] A collection of RISC-V cleanups and improvements, Alistair Francis, 2021/12/15
- [PATCH v2 1/9] hw/intc: sifive_plic: Add a reset function,
Alistair Francis <=
- [PATCH v2 2/9] hw/intc: sifive_plic: Cleanup the write function, Alistair Francis, 2021/12/15
- [PATCH v2 3/9] hw/intc: sifive_plic: Cleanup the read function, Alistair Francis, 2021/12/15
- [PATCH v2 4/9] hw/intc: sifive_plic: Cleanup remaining functions, Alistair Francis, 2021/12/15
- [PATCH v2 5/9] target/riscv: Mark the Hypervisor extension as non experimental, Alistair Francis, 2021/12/15
- [PATCH v2 6/9] target/riscv: Enable the Hypervisor extension by default, Alistair Francis, 2021/12/15