[PATCH] RISC-V: Add mvendorid, marchid, and mimpid to /proc/cpuinfo output

[Conor.Dooley at microchip.com]

Hey Anup,

On 26/07/2022 12:57, Anup Patel wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> 
> Hi Palmer,
> 
> On Mon, Jun 20, 2022 at 5:26 PM Anup Patel <apatel at ventanamicro.com> wrote:
>>
>> Identifying the underlying RISC-V implementation can be important
>> for some of the user space applications. For example, the perf tool
>> uses arch specific CPU implementation id (i.e. CPUID) to select a
>> JSON file describing custom perf events on a CPU.
>>
>> Currently, there is no way to identify RISC-V implementation so we
>> add mvendorid, marchid, and mimpid to /proc/cpuinfo output.
>>
>> Signed-off-by: Anup Patel <apatel at ventanamicro.com>
> 
> Can this patch be considered for 5.20 ?

iirc I mentioned the consistency of using defined() for
CONFIG_RISCV_SBI versus IS_ENABLED() elsewhere in arch/riscv/
but I don't recall a response.

Thanks,
Conor.