From: Will Deacon <will@kernel.org> To: linux-arm-kernel@lists.infradead.org Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, Will Deacon <will@kernel.org>, Catalin Marinas <catalin.marinas@arm.com>, Marc Zyngier <maz@kernel.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Peter Zijlstra <peterz@infradead.org>, Morten Rasmussen <morten.rasmussen@arm.com>, Qais Yousef <qais.yousef@arm.com>, Suren Baghdasaryan <surenb@google.com>, Quentin Perret <qperret@google.com>, Tejun Heo <tj@kernel.org>, Johannes Weiner <hannes@cmpxchg.org>, Ingo Molnar <mingo@redhat.com>, Juri Lelli <juri.lelli@redhat.com>, Vincent Guittot <vincent.guittot@linaro.org>, "Rafael J. Wysocki" <rjw@rjwysocki.net>, Dietmar Eggemann <dietmar.eggemann@arm.com>, Daniel Bristot de Oliveira <bristot@redhat.com>, Valentin Schneider <valentin.schneider@arm.com>, Mark Rutland <mark.rutland@arm.com>, kernel-team@android.com Subject: [PATCH v10 00/16] Add support for 32-bit tasks on asymmetric AArch32 systems Date: Wed, 23 Jun 2021 18:38:32 +0100 [thread overview] Message-ID: <20210623173848.318-1-will@kernel.org> (raw) Hi again all, This is version TEN of the patches previously circulated at: v1: https://lore.kernel.org/r/20201027215118.27003-1-will@kernel.org v2: https://lore.kernel.org/r/20201109213023.15092-1-will@kernel.org v3: https://lore.kernel.org/r/20201113093720.21106-1-will@kernel.org v4: https://lore.kernel.org/r/20201124155039.13804-1-will@kernel.org v5: https://lore.kernel.org/r/20201208132835.6151-1-will@kernel.org v6: https://lore.kernel.org/r/20210518094725.7701-1-will@kernel.org v7: https://lore.kernel.org/r/20210525151432.16875-1-will@kernel.org v8: https://lore.kernel.org/r/20210602164719.31777-1-will@kernel.org v9: https://lore.kernel.org/r/20210608180313.11502-1-will@kernel.org There was also a nice LWN writeup in case you've forgotten what this is about: https://lwn.net/Articles/838339/ The only changes since v9 are that I've added some Reviewed-by tags from Valentin and rebased the series onto the stable arm64/for-next/cpufeature branch, where I have queued some of the arm64 prerequisites [1]. Cheers, Will [1] https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git/log/?h=for-next/cpufeature Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Marc Zyngier <maz@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Morten Rasmussen <morten.rasmussen@arm.com> Cc: Qais Yousef <qais.yousef@arm.com> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Quentin Perret <qperret@google.com> Cc: Tejun Heo <tj@kernel.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Dietmar Eggemann <dietmar.eggemann@arm.com> Cc: Daniel Bristot de Oliveira <bristot@redhat.com> Cc: Valentin Schneider <valentin.schneider@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: kernel-team@android.com --->8 Will Deacon (16): sched: Introduce task_cpu_possible_mask() to limit fallback rq selection cpuset: Don't use the cpu_possible_mask as a last resort for cgroup v1 cpuset: Honour task_cpu_possible_mask() in guarantee_online_cpus() cpuset: Cleanup cpuset_cpus_allowed_fallback() use in select_fallback_rq() sched: Reject CPU affinity changes based on task_cpu_possible_mask() sched: Introduce task_struct::user_cpus_ptr to track requested affinity sched: Split the guts of sched_setaffinity() into a helper function sched: Allow task CPU affinity to be restricted on asymmetric systems sched: Introduce dl_task_check_affinity() to check proposed affinity arm64: Implement task_cpu_possible_mask() arm64: exec: Adjust affinity for compat tasks with mismatched 32-bit EL0 arm64: Prevent offlining first CPU with 32-bit EL0 on mismatched system arm64: Advertise CPUs capable of running 32-bit applications in sysfs arm64: Hook up cmdline parameter to allow mismatched 32-bit EL0 arm64: Remove logic to kill 32-bit tasks on 64-bit-only cores Documentation: arm64: describe asymmetric 32-bit support .../ABI/testing/sysfs-devices-system-cpu | 9 + .../admin-guide/kernel-parameters.txt | 11 + Documentation/arm64/asymmetric-32bit.rst | 155 ++++++++ Documentation/arm64/index.rst | 1 + arch/arm64/include/asm/elf.h | 6 +- arch/arm64/include/asm/mmu_context.h | 13 + arch/arm64/kernel/cpufeature.c | 51 ++- arch/arm64/kernel/process.c | 47 ++- arch/arm64/kernel/signal.c | 26 -- include/linux/cpuset.h | 8 +- include/linux/mmu_context.h | 14 + include/linux/sched.h | 21 ++ init/init_task.c | 1 + kernel/cgroup/cpuset.c | 59 +-- kernel/fork.c | 2 + kernel/sched/core.c | 340 ++++++++++++++---- kernel/sched/sched.h | 1 + 17 files changed, 627 insertions(+), 138 deletions(-) create mode 100644 Documentation/arm64/asymmetric-32bit.rst -- 2.32.0.93.g670b81a890-goog
WARNING: multiple messages have this Message-ID (diff)
From: Will Deacon <will@kernel.org> To: linux-arm-kernel@lists.infradead.org Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, Will Deacon <will@kernel.org>, Catalin Marinas <catalin.marinas@arm.com>, Marc Zyngier <maz@kernel.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Peter Zijlstra <peterz@infradead.org>, Morten Rasmussen <morten.rasmussen@arm.com>, Qais Yousef <qais.yousef@arm.com>, Suren Baghdasaryan <surenb@google.com>, Quentin Perret <qperret@google.com>, Tejun Heo <tj@kernel.org>, Johannes Weiner <hannes@cmpxchg.org>, Ingo Molnar <mingo@redhat.com>, Juri Lelli <juri.lelli@redhat.com>, Vincent Guittot <vincent.guittot@linaro.org>, "Rafael J. Wysocki" <rjw@rjwysocki.net>, Dietmar Eggemann <dietmar.eggemann@arm.com>, Daniel Bristot de Oliveira <bristot@redhat.com>, Valentin Schneider <valentin.schneider@arm.com>, Mark Rutland <mark.rutland@arm.com>, kernel-team@android.com Subject: [PATCH v10 00/16] Add support for 32-bit tasks on asymmetric AArch32 systems Date: Wed, 23 Jun 2021 18:38:32 +0100 [thread overview] Message-ID: <20210623173848.318-1-will@kernel.org> (raw) Hi again all, This is version TEN of the patches previously circulated at: v1: https://lore.kernel.org/r/20201027215118.27003-1-will@kernel.org v2: https://lore.kernel.org/r/20201109213023.15092-1-will@kernel.org v3: https://lore.kernel.org/r/20201113093720.21106-1-will@kernel.org v4: https://lore.kernel.org/r/20201124155039.13804-1-will@kernel.org v5: https://lore.kernel.org/r/20201208132835.6151-1-will@kernel.org v6: https://lore.kernel.org/r/20210518094725.7701-1-will@kernel.org v7: https://lore.kernel.org/r/20210525151432.16875-1-will@kernel.org v8: https://lore.kernel.org/r/20210602164719.31777-1-will@kernel.org v9: https://lore.kernel.org/r/20210608180313.11502-1-will@kernel.org There was also a nice LWN writeup in case you've forgotten what this is about: https://lwn.net/Articles/838339/ The only changes since v9 are that I've added some Reviewed-by tags from Valentin and rebased the series onto the stable arm64/for-next/cpufeature branch, where I have queued some of the arm64 prerequisites [1]. Cheers, Will [1] https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git/log/?h=for-next/cpufeature Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Marc Zyngier <maz@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Morten Rasmussen <morten.rasmussen@arm.com> Cc: Qais Yousef <qais.yousef@arm.com> Cc: Suren Baghdasaryan <surenb@google.com> Cc: Quentin Perret <qperret@google.com> Cc: Tejun Heo <tj@kernel.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Dietmar Eggemann <dietmar.eggemann@arm.com> Cc: Daniel Bristot de Oliveira <bristot@redhat.com> Cc: Valentin Schneider <valentin.schneider@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: kernel-team@android.com --->8 Will Deacon (16): sched: Introduce task_cpu_possible_mask() to limit fallback rq selection cpuset: Don't use the cpu_possible_mask as a last resort for cgroup v1 cpuset: Honour task_cpu_possible_mask() in guarantee_online_cpus() cpuset: Cleanup cpuset_cpus_allowed_fallback() use in select_fallback_rq() sched: Reject CPU affinity changes based on task_cpu_possible_mask() sched: Introduce task_struct::user_cpus_ptr to track requested affinity sched: Split the guts of sched_setaffinity() into a helper function sched: Allow task CPU affinity to be restricted on asymmetric systems sched: Introduce dl_task_check_affinity() to check proposed affinity arm64: Implement task_cpu_possible_mask() arm64: exec: Adjust affinity for compat tasks with mismatched 32-bit EL0 arm64: Prevent offlining first CPU with 32-bit EL0 on mismatched system arm64: Advertise CPUs capable of running 32-bit applications in sysfs arm64: Hook up cmdline parameter to allow mismatched 32-bit EL0 arm64: Remove logic to kill 32-bit tasks on 64-bit-only cores Documentation: arm64: describe asymmetric 32-bit support .../ABI/testing/sysfs-devices-system-cpu | 9 + .../admin-guide/kernel-parameters.txt | 11 + Documentation/arm64/asymmetric-32bit.rst | 155 ++++++++ Documentation/arm64/index.rst | 1 + arch/arm64/include/asm/elf.h | 6 +- arch/arm64/include/asm/mmu_context.h | 13 + arch/arm64/kernel/cpufeature.c | 51 ++- arch/arm64/kernel/process.c | 47 ++- arch/arm64/kernel/signal.c | 26 -- include/linux/cpuset.h | 8 +- include/linux/mmu_context.h | 14 + include/linux/sched.h | 21 ++ init/init_task.c | 1 + kernel/cgroup/cpuset.c | 59 +-- kernel/fork.c | 2 + kernel/sched/core.c | 340 ++++++++++++++---- kernel/sched/sched.h | 1 + 17 files changed, 627 insertions(+), 138 deletions(-) create mode 100644 Documentation/arm64/asymmetric-32bit.rst -- 2.32.0.93.g670b81a890-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2021-06-23 17:38 UTC|newest] Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-06-23 17:38 Will Deacon [this message] 2021-06-23 17:38 ` [PATCH v10 00/16] Add support for 32-bit tasks on asymmetric AArch32 systems Will Deacon 2021-06-23 17:38 ` [PATCH v10 01/16] sched: Introduce task_cpu_possible_mask() to limit fallback rq selection Will Deacon 2021-06-23 17:38 ` Will Deacon 2021-06-23 17:38 ` [PATCH v10 02/16] cpuset: Don't use the cpu_possible_mask as a last resort for cgroup v1 Will Deacon 2021-06-23 17:38 ` Will Deacon 2021-06-23 17:38 ` [PATCH v10 03/16] cpuset: Honour task_cpu_possible_mask() in guarantee_online_cpus() Will Deacon 2021-06-23 17:38 ` Will Deacon 2021-06-23 17:38 ` [PATCH v10 04/16] cpuset: Cleanup cpuset_cpus_allowed_fallback() use in select_fallback_rq() Will Deacon 2021-06-23 17:38 ` Will Deacon 2021-06-23 17:38 ` [PATCH v10 05/16] sched: Reject CPU affinity changes based on task_cpu_possible_mask() Will Deacon 2021-06-23 17:38 ` Will Deacon 2021-06-23 17:38 ` [PATCH v10 06/16] sched: Introduce task_struct::user_cpus_ptr to track requested affinity Will Deacon 2021-06-23 17:38 ` Will Deacon 2021-06-23 17:38 ` [PATCH v10 07/16] sched: Split the guts of sched_setaffinity() into a helper function Will Deacon 2021-06-23 17:38 ` Will Deacon 2021-06-23 17:38 ` [PATCH v10 08/16] sched: Allow task CPU affinity to be restricted on asymmetric systems Will Deacon 2021-06-23 17:38 ` Will Deacon 2021-06-23 17:38 ` [PATCH v10 09/16] sched: Introduce dl_task_check_affinity() to check proposed affinity Will Deacon 2021-06-23 17:38 ` Will Deacon 2021-06-23 17:38 ` [PATCH v10 10/16] arm64: Implement task_cpu_possible_mask() Will Deacon 2021-06-23 17:38 ` Will Deacon 2021-06-23 17:38 ` [PATCH v10 11/16] arm64: exec: Adjust affinity for compat tasks with mismatched 32-bit EL0 Will Deacon 2021-06-23 17:38 ` Will Deacon 2021-06-23 17:38 ` [PATCH v10 12/16] arm64: Prevent offlining first CPU with 32-bit EL0 on mismatched system Will Deacon 2021-06-23 17:38 ` Will Deacon 2021-06-23 17:38 ` [PATCH v10 13/16] arm64: Advertise CPUs capable of running 32-bit applications in sysfs Will Deacon 2021-06-23 17:38 ` Will Deacon 2021-06-25 8:46 ` Greg Kroah-Hartman 2021-06-25 8:46 ` Greg Kroah-Hartman 2021-06-25 9:36 ` Will Deacon 2021-06-25 9:36 ` Will Deacon 2021-06-25 9:49 ` Greg Kroah-Hartman 2021-06-25 9:49 ` Greg Kroah-Hartman 2021-06-23 17:38 ` [PATCH v10 14/16] arm64: Hook up cmdline parameter to allow mismatched 32-bit EL0 Will Deacon 2021-06-23 17:38 ` Will Deacon 2021-06-23 17:38 ` [PATCH v10 15/16] arm64: Remove logic to kill 32-bit tasks on 64-bit-only cores Will Deacon 2021-06-23 17:38 ` Will Deacon 2021-06-23 17:38 ` [PATCH v10 16/16] Documentation: arm64: describe asymmetric 32-bit support Will Deacon 2021-06-23 17:38 ` Will Deacon
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20210623173848.318-1-will@kernel.org \ --to=will@kernel.org \ --cc=bristot@redhat.com \ --cc=catalin.marinas@arm.com \ --cc=dietmar.eggemann@arm.com \ --cc=gregkh@linuxfoundation.org \ --cc=hannes@cmpxchg.org \ --cc=juri.lelli@redhat.com \ --cc=kernel-team@android.com \ --cc=linux-arch@vger.kernel.org \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=linux-kernel@vger.kernel.org \ --cc=mark.rutland@arm.com \ --cc=maz@kernel.org \ --cc=mingo@redhat.com \ --cc=morten.rasmussen@arm.com \ --cc=peterz@infradead.org \ --cc=qais.yousef@arm.com \ --cc=qperret@google.com \ --cc=rjw@rjwysocki.net \ --cc=surenb@google.com \ --cc=tj@kernel.org \ --cc=valentin.schneider@arm.com \ --cc=vincent.guittot@linaro.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.