On Thu, 02 Mar 2023 00:37:10 PST (-0800), ben.do...@codethink.co.uk wrote:
On 01/03/2023 21:59, Daniel Henrique Barboza wrote:
From: Anup Patel <apa...@ventanamicro.com>
The cbom-block-size fdt property property is used to inform the OS about
the blocksize in bytes for the Zicbom cache operations.
Linux documents it in Documentation/devicetree/bindings/riscv/cpus.yaml
as:
riscv,cbom-block-size:
$ref: /schemas/types.yaml#/definitions/uint32
description:
The blocksize in bytes for the Zicbom cache operations.
Signed-off-by: Anup Patel <apa...@ventanamicro.com>
---
hw/riscv/virt.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c
index 49acb57da4..31b55cc62f 100644
--- a/hw/riscv/virt.c
+++ b/hw/riscv/virt.c
@@ -244,6 +244,12 @@ static void create_fdt_socket_cpus(RISCVVirtState *s, int
socket,
name = riscv_isa_string(cpu_ptr);
qemu_fdt_setprop_string(ms->fdt, cpu_name, "riscv,isa", name);
g_free(name);
+
+ if (cpu_ptr->cfg.ext_icbom) {
+ qemu_fdt_setprop_cell(ms->fdt, cpu_name, "riscv,cbom-block-size",
+ cpu_ptr->cfg.cbom_blocksize);
+ }
+
qemu_fdt_setprop_string(ms->fdt, cpu_name, "compatible", "riscv");
qemu_fdt_setprop_string(ms->fdt, cpu_name, "status", "okay");
qemu_fdt_setprop_cell(ms->fdt, cpu_name, "reg",
You'll need the same for riscv,cboz-block-size as well.
Thanks. There's a v2 over here
<https://lore.kernel.org/qemu-devel/20230302091406.407824-1-dbarb...@ventanamicro.com/>
that adds both. The subject changed for the v2.
