From: Alex Belits <abelits@marvell.com>
To: "mark.rutland@arm.com" <mark.rutland@arm.com>
Cc: Prasun Kapoor <pkapoor@marvell.com>,
"linux-api@vger.kernel.org" <linux-api@vger.kernel.org>,
"davem@davemloft.net" <davem@davemloft.net>,
"trix@redhat.com" <trix@redhat.com>,
"mingo@kernel.org" <mingo@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"rostedt@goodmis.org" <rostedt@goodmis.org>,
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"tglx@linutronix.de" <tglx@linutronix.de>,
"nitesh@redhat.com" <nitesh@redhat.com>,
"linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>,
"mtosatti@redhat.com" <mtosatti@redhat.com>,
"will@kernel.org" <will@kernel.org>,
"catalin.marinas@arm.com" <catalin.marinas@arm.com>,
"peterz@infradead.org" <peterz@infradead.org>,
"frederic@kernel.org" <frederic@kernel.org>,
"leon@sidebranch.com" <leon@sidebranch.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"pauld@redhat.com" <pauld@redhat.com>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>
Subject: Re: [EXT] Re: [PATCH v5 5/9] task_isolation: Add driver-specific hooks
Date: Fri, 4 Dec 2020 00:43:49 +0000 [thread overview]
Message-ID: <fcef37ae29fdb58c7bf60a568590075a1c07dc2e.camel@marvell.com> (raw)
In-Reply-To: <20201202141821.GC66958@C02TD0UTHF1T.local>
On Wed, 2020-12-02 at 14:18 +0000, Mark Rutland wrote:
> External Email
>
> -------------------------------------------------------------------
> ---
> On Mon, Nov 23, 2020 at 05:57:42PM +0000, Alex Belits wrote:
> > Some drivers don't call functions that call
> > task_isolation_kernel_enter() in interrupt handlers. Call it
> > directly.
>
> I don't think putting this in drivers is the right approach. IIUC we
> only need to track user<->kernel transitions, and we can do that
> within
> the architectural entry code before we ever reach irqchip code. I
> suspect the current approacch is an artifact of that being difficult
> in
> the old structure of the arch code; recent rework should address
> that,
> and we can restruecture things further in future.
I agree completely. This patch only covers irqchip drivers with unusual
entry procedures.
--
Alex
next prev parent reply other threads:[~2020-12-04 0:45 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-23 17:42 [PATCH v5 0/9] "Task_isolation" mode Alex Belits
2020-11-23 17:56 ` [PATCH v5 1/9] task_isolation: vmstat: add quiet_vmstat_sync function Alex Belits
2020-11-23 21:48 ` Thomas Gleixner
2020-11-23 17:56 ` [PATCH v5 2/9] task_isolation: vmstat: add vmstat_idle function Alex Belits
2020-11-23 21:49 ` Thomas Gleixner
2020-11-23 17:56 ` [PATCH v5 3/9] task_isolation: userspace hard isolation from kernel Alex Belits
2020-11-23 22:01 ` Thomas Gleixner
2020-11-23 17:57 ` [PATCH v5 4/9] task_isolation: Add task isolation hooks to arch-independent code Alex Belits
2020-11-23 22:31 ` Thomas Gleixner
2020-11-23 17:57 ` [PATCH v5 5/9] task_isolation: Add driver-specific hooks Alex Belits
2020-12-02 14:18 ` Mark Rutland
2020-12-04 0:43 ` Alex Belits [this message]
2020-11-23 17:58 ` [PATCH v5 6/9] task_isolation: arch/arm64: enable task isolation functionality Alex Belits
2020-12-02 13:59 ` Mark Rutland
2020-12-04 0:37 ` [EXT] " Alex Belits
2020-12-07 11:57 ` Mark Rutland
2020-11-23 17:58 ` [PATCH v5 7/9] task_isolation: don't interrupt CPUs with tick_nohz_full_kick_cpu() Alex Belits
2020-11-23 22:13 ` Frederic Weisbecker
2020-11-23 22:35 ` Alex Belits
2020-11-23 22:36 ` Thomas Gleixner
2020-12-02 14:20 ` Mark Rutland
2020-12-04 0:54 ` [EXT] " Alex Belits
2020-12-07 11:58 ` Mark Rutland
2020-11-23 17:58 ` [PATCH v5 8/9] task_isolation: ringbuffer: don't interrupt CPUs running isolated tasks on buffer resize Alex Belits
2020-11-23 17:58 ` [PATCH v5 9/9] task_isolation: kick_all_cpus_sync: don't kick isolated cpus Alex Belits
2020-11-23 22:29 ` Frederic Weisbecker
2020-11-23 22:39 ` [EXT] " Alex Belits
2020-11-23 23:21 ` Frederic Weisbecker
2020-11-25 3:20 ` Alex Belits
2021-01-22 15:00 ` Marcelo Tosatti
2020-11-24 16:36 ` [PATCH v5 0/9] "Task_isolation" mode Tom Rix
2020-11-24 17:40 ` [EXT] " Alex Belits
2020-12-02 14:02 ` Mark Rutland
2020-12-04 0:39 ` Alex Belits
2020-12-05 20:40 ` Pavel Machek
2020-12-05 23:25 ` Thomas Gleixner
2020-12-11 18:08 ` Yury Norov
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