mirror of https://github.com/xemu-project/xemu.git
hw/riscv/virt.c: add cbo[mz]-block-size fdt properties
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. cboz-block-size has the same role but for the Zicboz extension, i.e. informs the size in bytes for Zicboz cache operations. Linux support for it is under review/approval in [1]. Patch 3 of that series describes cboz-block-size as: riscv,cboz-block-size: $ref: /schemas/types.yaml#/definitions/uint32 description: The blocksize in bytes for the Zicboz cache operations. [1] https://lore.kernel.org/all/20230224162631.405473-1-ajones@ventanamicro.com/ Cc: Andrew Jones <ajones@ventanamicro.com> Signed-off-by: Anup Patel <apatel@ventanamicro.com> Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Bin Meng <bmeng@tinylab.org> Message-ID: <20230302091406.407824-2-dbarboza@ventanamicro.com> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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@ -249,6 +249,17 @@ static void create_fdt_socket_cpus(RISCVVirtState *s, int socket,
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name = riscv_isa_string(cpu_ptr);
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qemu_fdt_setprop_string(ms->fdt, cpu_name, "riscv,isa", name);
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g_free(name);
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if (cpu_ptr->cfg.ext_icbom) {
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qemu_fdt_setprop_cell(ms->fdt, cpu_name, "riscv,cbom-block-size",
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cpu_ptr->cfg.cbom_blocksize);
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}
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if (cpu_ptr->cfg.ext_icboz) {
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qemu_fdt_setprop_cell(ms->fdt, cpu_name, "riscv,cboz-block-size",
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cpu_ptr->cfg.cboz_blocksize);
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}
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qemu_fdt_setprop_string(ms->fdt, cpu_name, "compatible", "riscv");
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qemu_fdt_setprop_string(ms->fdt, cpu_name, "status", "okay");
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qemu_fdt_setprop_cell(ms->fdt, cpu_name, "reg",
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