Re: [PATCH v2 09/15] xen/asm-generic: introduce generic header smp.h

[Oleksii <oleksii.kurochko@xxxxxxxxx>]

I will drop this patch as it will be hard to make it generic for Arm,
PPC and RISC-V.

~ Oleksii

On Fri, 2023-11-10 at 18:30 +0200, Oleksii Kurochko wrote:
> <asm/smp.h> is expcted to be generic between Arm, PPC and RISC-V
> there by it is moved to asm-generic.
> 
> Right now it is common only by PPC and RISC-V but during work on
> support of the mentioned arhcs <asm/smp.h> is expected to be the
> same.
> 
> Signed-off-by: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
> ---
> Changes in V2:
>         - drop #ifded ASSEMBLY as this header isn't expected to be
> included in asm files.
>         - update the commit message.
> ---
>  xen/include/asm-generic/smp.h | 28 ++++++++++++++++++++++++++++
>  1 file changed, 28 insertions(+)
>  create mode 100644 xen/include/asm-generic/smp.h
> 
> diff --git a/xen/include/asm-generic/smp.h b/xen/include/asm-
> generic/smp.h
> new file mode 100644
> index 0000000000..6740a2064c
> --- /dev/null
> +++ b/xen/include/asm-generic/smp.h
> @@ -0,0 +1,28 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +#ifndef __ASM_GENERIC_SMP_H
> +#define __ASM_GENERIC_SMP_H
> +
> +#include <xen/cpumask.h>
> +#include <xen/percpu.h>
> +
> +DECLARE_PER_CPU(cpumask_var_t, cpu_sibling_mask);
> +DECLARE_PER_CPU(cpumask_var_t, cpu_core_mask);
> +
> +#define cpu_is_offline(cpu) unlikely(!cpu_online(cpu))
> +
> +/*
> + * Do we, for platform reasons, need to actually keep CPUs online
> when we
> + * would otherwise prefer them to be off?
> + */
> +#define park_offline_cpus false
> +
> +#endif
> +
> +/*
> + * Local variables:
> + * mode: C
> + * c-file-style: BSD
> + * c-basic-offset: 4
> + * indent-tabs-mode: nil
> + * End:
> + */