From: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
To: Laurent Dufour <ldufour@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org, linux-arch@vger.kernel.org,
dave.hansen@linux.intel.com, linux-kernel@vger.kernel.org,
mingo@redhat.com, bp@alien8.de, npiggin@gmail.com,
tglx@linutronix.de, rui.zhang@intel.com
Subject: Re: [PATCH v4 09/10] powerpc: Add HOTPLUG_SMT support
Date: Mon, 14 Aug 2023 16:22:17 +0530 [thread overview]
Message-ID: <20230814105217.m5arvw36tytlda6c@linux.vnet.ibm.com> (raw)
In-Reply-To: <20230705145143.40545-10-ldufour@linux.ibm.com>
* Laurent Dufour <ldufour@linux.ibm.com> [2023-07-05 16:51:42]:
> From: Michael Ellerman <mpe@ellerman.id.au>
>
> Add support for HOTPLUG_SMT, which enables the generic sysfs SMT support
> files in /sys/devices/system/cpu/smt, as well as the "nosmt" boot
> parameter.
>
> Implement the recently added hooks to allow partial SMT states, allow
> any number of threads per core.
>
> Tie the config symbol to HOTPLUG_CPU, which enables it on the major
> platforms that support SMT. If there are other platforms that want the
> SMT support that can be tweaked in future.
>
> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
> [ldufour: pass current SMT level to cpu_smt_set_num_threads]
> [ldufour: remove topology_smt_supported]
> [ldufour: remove topology_smt_threads_supported]
> [ldufour: select CONFIG_SMT_NUM_THREADS_DYNAMIC]
> [ldufour: update kernel-parameters.txt]
> Signed-off-by: Laurent Dufour <ldufour@linux.ibm.com>
Looks good to me.
Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
--
Thanks and Regards
Srikar Dronamraju
next prev parent reply other threads:[~2023-08-14 10:53 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-05 14:51 [PATCH v4 00/10] Introduce SMT level and add PowerPC support Laurent Dufour
2023-07-05 14:51 ` [PATCH v4 01/10] cpu/hotplug: remove dependancy against cpu_primary_thread_mask Laurent Dufour
2023-07-05 14:51 ` [PATCH v4 02/10] cpu/SMT: Move SMT prototypes into cpu_smt.h Laurent Dufour
2023-07-05 14:51 ` [PATCH v4 03/10] cpu/SMT: Move smt/control simple exit cases earlier Laurent Dufour
2023-07-05 14:51 ` [PATCH v4 04/10] cpu/SMT: Store the current/max number of threads Laurent Dufour
2023-07-05 14:51 ` [PATCH v4 05/10] cpu/SMT: Remove topology_smt_supported() Laurent Dufour
2023-07-05 14:51 ` [PATCH v4 06/10] cpu/SMT: Create topology_smt_thread_allowed() Laurent Dufour
2023-07-05 14:51 ` [PATCH v4 07/10] cpu/SMT: Allow enabling partial SMT states via sysfs Laurent Dufour
2024-04-08 14:13 ` Michal Suchánek
2023-07-05 14:51 ` [PATCH v4 08/10] powerpc/pseries: Initialise CPU hotplug callbacks earlier Laurent Dufour
2023-08-14 10:51 ` Srikar Dronamraju
2023-07-05 14:51 ` [PATCH v4 09/10] powerpc: Add HOTPLUG_SMT support Laurent Dufour
2023-08-14 10:52 ` Srikar Dronamraju [this message]
2023-07-05 14:51 ` [PATCH v4 10/10] powerpc/pseries: Honour current SMT state when DLPAR onlining CPUs Laurent Dufour
2023-08-14 10:53 ` Srikar Dronamraju
2023-07-09 15:25 ` [PATCH v4 00/10] Introduce SMT level and add PowerPC support Zhang, Rui
2023-07-10 9:08 ` Laurent Dufour
2023-07-28 7:40 ` Thomas Gleixner
2023-07-28 14:23 ` Zhang, Rui
2023-07-28 14:51 ` Thomas Gleixner
2023-07-28 7:58 ` Thomas Gleixner
2023-07-31 11:55 ` Laurent Dufour
2023-08-10 6:23 ` Michael Ellerman
2023-08-10 8:51 ` Laurent Dufour
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