Subject: [PATCH v13 01/20] ARM64: Move PMU register related defines to asm/perf_event.h

From: [email-masked] (Will Deacon)
Date: Wed, 24 Feb 2016 17:52:48 +0000

On Wed, Feb 24, 2016 at 01:08:21PM +0800, Shannon Zhao wrote:
> From: Shannon Zhao <[email-masked]>
> 
> To use the ARMv8 PMU related register defines from the KVM code, we move
> the relevant definitions to asm/perf_event.h header file and rename them
> with prefix ARMV8_PMU_.
> 
> Signed-off-by: Anup Patel <[email-masked]>
> Signed-off-by: Shannon Zhao <[email-masked]>
> Acked-by: Marc Zyngier <[email-masked]>
> Reviewed-by: Andrew Jones <[email-masked]>
> ---
>  arch/arm64/include/asm/perf_event.h | 35 +++++++++++++++++++
>  arch/arm64/kernel/perf_event.c      | 68 ++++++++++---------------------------
>  2 files changed, 52 insertions(+), 51 deletions(-)

Looks fine to me, but we're going to get some truly horrible conflicts
in -next.

I'm open to suggestions on the best way to handle this, but one way
would be:

  1. Duplicate all the #defines privately in KVM (queue via kvm tree)
  2. Rebase this patch onto my perf/updates branch [1] (queue via me)
  3. Patch at -rc1 dropping the #defines from (1) and moving to the new
     perf_event.h stuff

Thoughts?

Will

[1] git://git.kernel.org/pub/scm/linux/kernel/git/will/linux.git perf/updates