Re: [PATCH v1 08/31] x86/resctrl: Move resctrl types to a separate header

Reinette Chatre
2024-04-09T03:18:05Z

Hi James,

On 3/21/2024 9:50 AM, James Morse wrote:
> To avoid sticky problems in the mpam glue code, move the resctrl
> enums into a separate header.

Could you please elaborate so that "sticky problems in the mpam glue code" is
specific about what problems are avoided?

>
> This lets the arch code declare prototypes that use these enums without
> creating a loop via asm<->linux resctrl.h The same logic applies to the
> monitor-configuration defines, move these too.
>
> The maintainers entry for these headers was missed when resctrl.h
> was created. Add a wildcard entry to match both resctrl.h and
> resctrl_types.h.
>
> Signed-off-by: James Morse <james.morse@arm.com>

...

> diff --git a/include/linux/resctrl_types.h b/include/linux/resctrl_types.h
> new file mode 100644
> index 000000000000..4788bd95dac6
> --- /dev/null
> +++ b/include/linux/resctrl_types.h
> @@ -0,0 +1,68 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Copyright (C) 2024 Arm Ltd.
> + * Based on arch/x86/kernel/cpu/resctrl/internal.h
> + */

Could this header please explain how this file is intended to be used?
What is it intended to contain?

Reinette