Re: [PATCH 09/15] x86, amd: add accessor for number of cores per compute unit
From: Huang Rui
Date: Fri Aug 28 2015 - 06:20:15 EST
On Fri, Aug 28, 2015 at 04:04:18PM +0800, Ingo Molnar wrote:
> * Borislav Petkov <bp@xxxxxxxxx> wrote:
> > On Thu, Aug 27, 2015 at 04:07:40PM +0800, Huang Rui wrote:
> > > Add an accessor function amd_get_cores_per_cu() which returns the
> > > number of cores per compute unit.
> > >
> > > In a subsequent patch, we will use this function in fam15h_power
> > > driver.
> > >
> > > Signed-off-by: Huang Rui <ray.huang@xxxxxxx>
> > > ---
> > > arch/x86/include/asm/processor.h | 1 +
> > > arch/x86/kernel/cpu/amd.c | 19 +++++++++++++++++--
> > > 2 files changed, 18 insertions(+), 2 deletions(-)
> > Btw, this needs an ACK from a tip person if it goes through the hwmon
> > tree.
> Looks good to me in theory.
> I suspect we might want to factor the 'compute unit' logic out a bit more if usage
> becomes more widespread - but right now it's hwmon drivers only,right?
Actually, the cores with the same compute unit share some resources
such as power domain, it might be useful in other parts not only for
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