linux-kernel - Re: [PATCH] powerpc/powernv: Add kernel cmdline parameter to disable imc

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Date:   Tue, 10 Oct 2017 20:02:32 +1100
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Anju T Sudhakar <anju@...ux.vnet.ibm.com>
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        maddy@...ux.vnet.ibm.com, hemant@...ux.vnet.ibm.com,
        anju@...ux.vnet.ibm.com
Subject: Re: [PATCH] powerpc/powernv: Add kernel cmdline parameter to disable imc

Anju T Sudhakar <anju@...ux.vnet.ibm.com> writes:

> Add a kernel command line parameter option to disable In-Memory Collection
> (IMC) counters and add documentation. This helps in debug.

I'd really rather we didn't. Do we *really* need this?

We don't have command line parameters to disable any of the other ~20
PMUs, why is this one special?

cheers