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SubjectRe: [RFT/RFC PATCH v3 3/5] cpu-topology: Move cpu topology code to common code.
Hi Atish,

Thanks again for doing this. Overall changes look good except a couple
of minor nit, see below.

On Wed, Mar 20, 2019 at 04:48:04PM -0700, Atish Patra wrote:
> Both RISC-V & ARM64 are using cpu-map device tree to describe
> their cpu topology. It's better to move the relevant code to
> a common place instead of duplicate code.
>
> Signed-off-by: Atish Patra <atish.patra@wdc.com>
> Tested-by: Jeffrey Hugo <jhugo@codeaurora.org>
> ---
> arch/arm64/include/asm/topology.h | 23 ---
> arch/arm64/kernel/topology.c | 303 +-----------------------------
> drivers/base/arch_topology.c | 298 ++++++++++++++++++++++++++++-
> drivers/base/topology.c | 1 +
> include/linux/arch_topology.h | 28 +++
> 5 files changed, 330 insertions(+), 323 deletions(-)
>

[...]

> diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c
> index edfcf8d9..6cc6a860 100644
> --- a/drivers/base/arch_topology.c
> +++ b/drivers/base/arch_topology.c
> @@ -6,8 +6,8 @@
> * Written by: Juri Lelli, ARM Ltd.
> */
>
> -#include <linux/acpi.h>
> #include <linux/arch_topology.h>
> +#include <linux/acpi.h>
> #include <linux/cpu.h>
> #include <linux/cpufreq.h>
> #include <linux/device.h>
> @@ -16,6 +16,11 @@
> #include <linux/string.h>
> #include <linux/sched/topology.h>
> #include <linux/cpuset.h>
> +#include <linux/cpumask.h>
> +#include <linux/init.h>
> +#include <linux/percpu.h>
> +#include <linux/sched.h>
> +#include <linux/smp.h>
>
> DEFINE_PER_CPU(unsigned long, freq_scale) = SCHED_CAPACITY_SCALE;
>
> @@ -278,3 +283,294 @@ static void parsing_done_workfn(struct work_struct *work)
> #else
> core_initcall(free_raw_capacity);
> #endif
> +
> +#if defined(CONFIG_ARM64) || defined(CONFIG_RISCV)

Why can't the above one be just GENERIC_ARCH_TOPOLOGY ?
I may be missing to find it myself, but would like to know.

> +
> +#if defined(CONFIG_ARM64) || defined(CONFIG_RISCV)

Ditto.

--
Regards,
Sudeep

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