LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Thomas Gleixner <tglx@linutronix.de>
To: Christoph Hellwig <hch@lst.de>
Cc: Ingo Molnar <mingo@redhat.com>, Tony Luck <tony.luck@intel.com>,
Fenghua Yu <fenghua.yu@intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
x86@kernel.org, iommu@lists.linux-foundation.org,
linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org,
netdev@vger.kernel.org
Subject: Re: [PATCH 5/7] x86: remove the experimental forcesac boot option
Date: Mon, 28 May 2018 08:07:57 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.21.1805280807180.1585@nanos.tec.linutronix.de> (raw)
In-Reply-To: <20180525143512.1466-6-hch@lst.de>
On Fri, 25 May 2018, Christoph Hellwig wrote:
x86/pci-dma: ...
Please
> Limiting the dma mask to avoid PCI (pre-PCIe) DAC cycles while paying
> the huge overhead of an IOMMU is rather pointless, and this seriously
> gets in the way of dma mapping work.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
next prev parent reply other threads:[~2018-05-28 6:08 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-25 14:35 refactor 32-bit dma limit quirks Christoph Hellwig
2018-05-25 14:35 ` [PATCH 1/7] core, dma-direct: add a flag 32-bit dma limits Christoph Hellwig
2018-05-25 14:50 ` Greg Kroah-Hartman
2018-05-25 16:23 ` Christoph Hellwig
2018-05-25 16:35 ` Greg Kroah-Hartman
2018-05-25 14:35 ` [PATCH 2/7] ia64: remove the dead iommu_sac_force variable Christoph Hellwig
2018-05-25 14:35 ` [PATCH 3/7] ia64: remove iommu_dma_supported Christoph Hellwig
2018-05-25 14:35 ` [PATCH 4/7] x86: remove a stray reference to pci-nommu.c Christoph Hellwig
2018-05-26 19:23 ` Thomas Gleixner
2018-05-25 14:35 ` [PATCH 5/7] x86: remove the experimental forcesac boot option Christoph Hellwig
2018-05-28 6:07 ` Thomas Gleixner [this message]
2018-05-25 14:35 ` [PATCH 6/7] x86: remove the explicit nodac and allowdac option Christoph Hellwig
2018-05-28 6:08 ` Thomas Gleixner
2018-05-25 14:35 ` [PATCH 7/7] x86: switch the VIA 32-bit DMA quirk to use the struct device flag Christoph Hellwig
2018-05-28 6:10 ` Thomas Gleixner
2018-05-28 6:19 ` Christoph Hellwig
2018-05-28 6:18 ` Thomas Gleixner
2018-05-28 6:27 ` Christoph Hellwig
2018-05-28 6:23 ` Thomas Gleixner
2018-05-28 8:39 ` Christoph Hellwig
2018-05-28 8:34 ` Thomas Gleixner
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=alpine.DEB.2.21.1805280807180.1585@nanos.tec.linutronix.de \
--to=tglx@linutronix.de \
--cc=fenghua.yu@intel.com \
--cc=gregkh@linuxfoundation.org \
--cc=hch@lst.de \
--cc=iommu@lists.linux-foundation.org \
--cc=linux-ia64@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=netdev@vger.kernel.org \
--cc=tony.luck@intel.com \
--cc=x86@kernel.org \
--subject='Re: [PATCH 5/7] x86: remove the experimental forcesac boot option' \
/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: link
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).