From: Sven Schnelle <svens@stackframe.org>
To: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org,
James Bottomley <James.Bottomley@HansenPartnership.com>,
John David Anglin <dave.anglin@bell.net>
Subject: Re: [PATCH] parisc: Avoid calling SMP cache flush functions on cache-less machines
Date: Mon, 14 Mar 2022 20:31:08 +0100 [thread overview]
Message-ID: <87y21cs54z.fsf@x1.stackframe.org> (raw)
In-Reply-To: <20220312200533.74209-1-deller@gmx.de> (Helge Deller's message of "Sat, 12 Mar 2022 21:05:33 +0100")
Hi Helge,
Helge Deller <deller@gmx.de> writes:
> At least the qemu virtual machine does not provide D- and I-caches,
> so skip triggering SMP irqs to flush caches on such machines.
>
> Signed-off-by: Helge Deller <deller@gmx.de>
Not sure about the real performance benefit on hppa, but maybe use
static branches?
prev parent reply other threads:[~2022-03-14 19:32 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-12 20:05 [PATCH] parisc: Avoid calling SMP cache flush functions on cache-less machines Helge Deller
2022-03-14 19:31 ` Sven Schnelle [this message]
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