[PATCH v2 1/3] eal: add x86 cpuid support for monitorx

[David Marchand]

On Thu, Apr 13, 2023 at 1:54 PM Sivaprasad Tummala
<sivaprasad.tummala at amd.com> wrote:
>
> Add a new CPUID flag to indicate support for monitorx instruction
> on AMD Epyc processors.
>
> Signed-off-by: Sivaprasad Tummala <sivaprasad.tummala at amd.com>
> ---
>  lib/eal/include/generic/rte_cpuflags.h | 2 ++
>  lib/eal/x86/include/rte_cpuflags.h     | 1 +
>  lib/eal/x86/rte_cpuflags.c             | 3 +++
>  3 files changed, 6 insertions(+)
>
> diff --git a/lib/eal/include/generic/rte_cpuflags.h b/lib/eal/include/generic/rte_cpuflags.h
> index d35551e931..db653a8dd7 100644
> --- a/lib/eal/include/generic/rte_cpuflags.h
> +++ b/lib/eal/include/generic/rte_cpuflags.h
> @@ -26,6 +26,8 @@ struct rte_cpu_intrinsics {
>         /**< indicates support for rte_power_pause function */
>         uint32_t power_monitor_multi : 1;
>         /**< indicates support for rte_power_monitor_multi function */
> +       uint32_t amd_power_monitorx : 1;
> +       /**< indicates amd support for rte_power_monitor function */

I did not look at the patch detail, I just stopped at this part.
What makes the AMD monitorx stuff special that it needs to be exposed
in the generic API?


-- 
David Marchand