linux-arm-kernel.lists.infradead.org archive mirror
 help / color / mirror / Atom feed
From: "Pali Rohár" <pali@kernel.org>
To: "Marek Behún" <kabel@kernel.org>
Cc: "Russell King (Oracle)" <linux@armlinux.org.uk>,
	Christoph Hellwig <hch@lst.de>,
	Robin Murphy <robin.murphy@arm.com>,
	Arnd Bergmann <arnd@kernel.org>,
	Andre Przywara <andre.przywara@arm.com>,
	Marc Zyngier <maz@kernel.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Lunn <andrew@lunn.ch>,
	Gregory Clement <gregory.clement@bootlin.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	iommu@lists.linux-foundation.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: REGRESSION in 6.0-rc7 caused by patch "ARM/dma-mapping: use dma-direct unconditionally"
Date: Mon, 3 Oct 2022 21:08:16 +0200	[thread overview]
Message-ID: <20221003190816.jzlsxfrsofkhpwbg@pali> (raw)
In-Reply-To: <20221003210446.050f6e8e@thinkpad>

On Monday 03 October 2022 21:04:46 Marek Behún wrote:
> On Mon, 3 Oct 2022 18:09:50 +0200
> Pali Rohár <pali@kernel.org> wrote:
> 
> > On Monday 03 October 2022 17:25:33 Marek Behún wrote:
> > > I seem to remember Pali talking about how the ranges defined in some
> > > upstream mvebu-tree, using MBUS_ID() macros, are incorrect.
> > > Pali, what do you remember about this?  
> > 
> > This is "incorrect" in respect to the standard DT translation of
> > "ranges" property. And applies for PCIe. Anyway, it works correctly just
> > because mvebu PCIe drivers (both u-boot and linux) have workarounds for
> > those issues, and expects that DT are "incorrect". So lets say mvebu
> > PCIe defined _new DT standard_ for PCIe incompatible with DT standard.
> 
> So this doesn't concert non-PCIe peripherals?

I have not spotted such giant hack for other peripherals. But I have not
tested it deeply. So it is possible that there are issues also with
non-PCIe peripherals. I found that PCIe issue only during review of
Orion support when half of ranges started to be translated to nonsense
values if we tried to use kernel of_* functions instead of home-made dts
address parsers.

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2022-10-03 19:09 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-30 13:10 REGRESSION in 6.0-rc7 caused by patch "ARM/dma-mapping: use dma-direct unconditionally" Marek Behún
2022-09-30 13:46 ` Robin Murphy
2022-09-30 14:52   ` Marek Behún
2022-09-30 15:02     ` Marek Behún
2022-09-30 16:41       ` Robin Murphy
2022-09-30 18:02         ` Marek Behún
2022-10-03  7:21           ` Christoph Hellwig
2022-10-03  7:30       ` Christoph Hellwig
2022-10-03 14:11         ` Russell King (Oracle)
2022-10-03 15:25           ` Marek Behún
2022-10-03 16:09             ` Pali Rohár
2022-10-03 19:04               ` Marek Behún
2022-10-03 19:08                 ` Pali Rohár [this message]
2022-10-03 21:30             ` Marcin Wojtas
2022-10-03 21:35               ` Pali Rohár
2022-10-03 22:03                 ` Marcin Wojtas
2022-10-04  7:10               ` Christoph Hellwig
2022-10-04  8:15                 ` Marek Behún
2022-10-04  8:17                   ` [PATCH] ARM: mvebu: select OF_DMA_DEFAULT_COHERENT if MACH_MVEBU_V7 Marek Behún
2022-10-04  8:30                     ` Christoph Hellwig
2022-10-04 12:54                       ` Marek Behún
2022-10-04  8:30                     ` Arnd Bergmann
2022-10-04  9:14                     ` Thorsten Leemhuis
2022-10-04  9:22                       ` Russell King (Oracle)
2022-10-04  9:56                 ` REGRESSION in 6.0-rc7 caused by patch "ARM/dma-mapping: use dma-direct unconditionally" Robin Murphy
2022-10-04  7:25               ` Russell King (Oracle)
2022-10-04  8:30                 ` Marcin Wojtas
2022-10-04  9:08                   ` Russell King (Oracle)
2022-10-04 12:36                     ` Marek Behún
2022-10-04 12:59                       ` Marcin Wojtas
2022-10-04 18:51                         ` Pali Rohár
2022-10-04 19:35                           ` Marcin Wojtas
2022-10-04  8:26               ` Marek Behún
2022-10-04  8:36                 ` Marcin Wojtas
2022-10-20 18:22                   ` Russell King (Oracle)
2022-10-20 19:10                     ` Marek Behún
2022-10-21 16:25                     ` Linus Torvalds
2022-10-21 16:30                     ` Christoph Hellwig
2022-10-21 18:21                       ` Russell King (Oracle)
2022-10-23 11:58                     ` Klaus Kudielka
2022-10-03 18:57         ` Marek Behún
2022-10-01  9:31 ` Thorsten Leemhuis
2022-11-04 12:08   ` REGRESSION in 6.0-rc7 caused by patch "ARM/dma-mapping: use dma-direct unconditionally" #forregzbot Thorsten Leemhuis

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=20221003190816.jzlsxfrsofkhpwbg@pali \
    --to=pali@kernel.org \
    --cc=andre.przywara@arm.com \
    --cc=andrew@lunn.ch \
    --cc=arnd@kernel.org \
    --cc=gregkh@linuxfoundation.org \
    --cc=gregory.clement@bootlin.com \
    --cc=hch@lst.de \
    --cc=iommu@lists.linux-foundation.org \
    --cc=kabel@kernel.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux@armlinux.org.uk \
    --cc=maz@kernel.org \
    --cc=robin.murphy@arm.com \
    --cc=torvalds@linux-foundation.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: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
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).