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[PATCH v8 16/23] hw/riscv: virt: Use AIA INTC compatible string when ava
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From: |
Anup Patel |
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Subject: |
[PATCH v8 16/23] hw/riscv: virt: Use AIA INTC compatible string when available |
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Date: |
Wed, 19 Jan 2022 20:56:07 +0530 |
From: Anup Patel <anup.patel@wdc.com>
We should use the AIA INTC compatible string in the CPU INTC
DT nodes when the CPUs support AIA feature. This will allow
Linux INTC driver to use AIA local interrupt CSRs.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
---
hw/riscv/virt.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c
index 2643c8bc37..e3068d6126 100644
--- a/hw/riscv/virt.c
+++ b/hw/riscv/virt.c
@@ -212,8 +212,17 @@ static void create_fdt_socket_cpus(RISCVVirtState *s, int
socket,
qemu_fdt_add_subnode(mc->fdt, intc_name);
qemu_fdt_setprop_cell(mc->fdt, intc_name, "phandle",
intc_phandles[cpu]);
- qemu_fdt_setprop_string(mc->fdt, intc_name, "compatible",
- "riscv,cpu-intc");
+ if (riscv_feature(&s->soc[socket].harts[cpu].env,
+ RISCV_FEATURE_AIA)) {
+ static const char * const compat[2] = {
+ "riscv,cpu-intc-aia", "riscv,cpu-intc"
+ };
+ qemu_fdt_setprop_string_array(mc->fdt, intc_name, "compatible",
+ (char **)&compat, ARRAY_SIZE(compat));
+ } else {
+ qemu_fdt_setprop_string(mc->fdt, intc_name, "compatible",
+ "riscv,cpu-intc");
+ }
qemu_fdt_setprop(mc->fdt, intc_name, "interrupt-controller", NULL, 0);
qemu_fdt_setprop_cell(mc->fdt, intc_name, "#interrupt-cells", 1);
--
2.25.1
- [PATCH v8 09/23] target/riscv: Implement AIA local interrupt priorities, (continued)
- [PATCH v8 09/23] target/riscv: Implement AIA local interrupt priorities, Anup Patel, 2022/01/19
- [PATCH v8 10/23] target/riscv: Implement AIA CSRs for 64 local interrupts on RV32, Anup Patel, 2022/01/19
- [PATCH v8 12/23] target/riscv: Implement AIA interrupt filtering CSRs, Anup Patel, 2022/01/19
- [PATCH v8 14/23] target/riscv: Implement AIA xiselect and xireg CSRs, Anup Patel, 2022/01/19
- [PATCH v8 11/23] target/riscv: Implement AIA hvictl and hviprioX CSRs, Anup Patel, 2022/01/19
- [PATCH v8 13/23] target/riscv: Implement AIA mtopi, stopi, and vstopi CSRs, Anup Patel, 2022/01/19
- [PATCH v8 15/23] target/riscv: Implement AIA IMSIC interface CSRs, Anup Patel, 2022/01/19
- [PATCH v8 16/23] hw/riscv: virt: Use AIA INTC compatible string when available,
Anup Patel <=
- [PATCH v8 17/23] target/riscv: Allow users to force enable AIA CSRs in HART, Anup Patel, 2022/01/19
- [PATCH v8 18/23] hw/intc: Add RISC-V AIA APLIC device emulation, Anup Patel, 2022/01/19
[PATCH v8 19/23] hw/riscv: virt: Add optional AIA APLIC support to virt machine, Anup Patel, 2022/01/19
[PATCH v8 20/23] hw/intc: Add RISC-V AIA IMSIC device emulation, Anup Patel, 2022/01/19