From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
To: Rob Herring <robh@kernel.org>,
devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Cc: Florian Fainelli <f.fainelli@gmail.com>,
Arnd Bergmann <arnd@arndb.de>,
Frank Rowand <frowand.list@gmail.com>,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
Marek Vasut <marek.vasut@gmail.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Oza Pawandeep <oza.oza@broadcom.com>,
Stefan Wahren <wahrenst@gmx.net>,
Simon Horman <horms+renesas@verge.net.au>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Robin Murphy <robin.murphy@arm.com>
Subject: Re: [PATCH 00/11] of: dma-ranges fixes and improvements
Date: Mon, 30 Sep 2019 11:20:55 +0200 [thread overview]
Message-ID: <202216c6e456bfd1a30f7cdb000aa714e3855e10.camel@suse.de> (raw)
In-Reply-To: <20190927002455.13169-1-robh@kernel.org>
[-- Attachment #1.1: Type: text/plain, Size: 2313 bytes --]
On Thu, 2019-09-26 at 19:24 -0500, Rob Herring wrote:
> This series fixes several issues related to 'dma-ranges'. Primarily,
> 'dma-ranges' in a PCI bridge node does correctly set dma masks for PCI
> devices not described in the DT. A common case needing dma-ranges is a
> 32-bit PCIe bridge on a 64-bit system. This affects several platforms
> including Broadcom, NXP, Renesas, and Arm Juno. There's been several
> attempts to fix these issues, most recently earlier this week[1].
>
> In the process, I found several bugs in the address translation. It
> appears that things have happened to work as various DTs happen to use
> 1:1 addresses.
>
> First 3 patches are just some clean-up. The 4th patch adds a unittest
> exhibiting the issues. Patches 5-9 rework how of_dma_configure() works
> making it work on either a struct device child node or a struct
> device_node parent node so that it works on bus leaf nodes like PCI
> bridges. Patches 10 and 11 fix 2 issues with address translation for
> dma-ranges.
>
> My testing on this has been with QEMU virt machine hacked up to set PCI
> dma-ranges and the unittest. Nicolas reports this series resolves the
> issues on Rpi4 and NXP Layerscape platforms.
>
> Rob
>
> [1]
>
https://lore.kernel.org/linux-arm-kernel/20190924181244.7159-1-nsaenzjulienne@suse.de/
>
> Rob Herring (5):
> of: Remove unused of_find_matching_node_by_address()
> of: Make of_dma_get_range() private
> of/unittest: Add dma-ranges address translation tests
> of/address: Translate 'dma-ranges' for parent nodes missing
> 'dma-ranges'
> of/address: Fix of_pci_range_parser_one translation of DMA addresses
>
> Robin Murphy (6):
> of: address: Report of_dma_get_range() errors meaningfully
> of: Ratify of_dma_configure() interface
> of/address: Introduce of_get_next_dma_parent() helper
> of: address: Follow DMA parent for "dma-coherent"
> of: Factor out #{addr,size}-cells parsing
> of: Make of_dma_get_range() work on bus nodes
Re-tested the whole series. Verified both the unittests run fine and PCIe's
behaviour is fixed.
Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Also for the whole series:
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Regards,
Nicolas
[-- Attachment #1.2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
[-- Attachment #2: Type: text/plain, Size: 176 bytes --]
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-09-30 9:21 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-27 0:24 [PATCH 00/11] of: dma-ranges fixes and improvements Rob Herring
2019-09-27 0:24 ` [PATCH 01/11] of: Remove unused of_find_matching_node_by_address() Rob Herring
2019-09-27 9:17 ` Geert Uytterhoeven
2019-09-30 12:49 ` Christoph Hellwig
2019-09-27 0:24 ` [PATCH 02/11] of: Make of_dma_get_range() private Rob Herring
2019-09-27 9:18 ` Geert Uytterhoeven
2019-09-30 12:53 ` Christoph Hellwig
2019-09-27 0:24 ` [PATCH 03/11] of: address: Report of_dma_get_range() errors meaningfully Rob Herring
2019-09-27 9:15 ` Geert Uytterhoeven
2019-09-30 12:54 ` Christoph Hellwig
2019-09-27 0:24 ` [PATCH 04/11] of/unittest: Add dma-ranges address translation tests Rob Herring
2019-09-27 0:24 ` [PATCH 05/11] of: Ratify of_dma_configure() interface Rob Herring
2019-09-30 12:57 ` Christoph Hellwig
2019-09-30 13:32 ` Nicolas Saenz Julienne
2019-09-30 21:24 ` Rob Herring
2019-10-01 15:43 ` Nicolas Saenz Julienne
2019-10-04 1:53 ` Rob Herring
2019-10-07 17:51 ` Nicolas Saenz Julienne
2019-09-27 0:24 ` [PATCH 06/11] of/address: Introduce of_get_next_dma_parent() helper Rob Herring
2019-09-27 9:24 ` Geert Uytterhoeven
2019-09-27 0:24 ` [PATCH 07/11] of: address: Follow DMA parent for "dma-coherent" Rob Herring
2019-09-27 0:24 ` [PATCH 08/11] of: Factor out #{addr,size}-cells parsing Rob Herring
2019-09-27 9:27 ` Geert Uytterhoeven
2019-09-27 0:24 ` [PATCH 09/11] of: Make of_dma_get_range() work on bus nodes Rob Herring
2019-09-27 0:24 ` [PATCH 10/11] of/address: Translate 'dma-ranges' for parent nodes missing 'dma-ranges' Rob Herring
2019-09-27 0:24 ` [PATCH 11/11] of/address: Fix of_pci_range_parser_one translation of DMA addresses Rob Herring
2019-09-29 11:16 ` [PATCH 00/11] of: dma-ranges fixes and improvements Arnd Bergmann
2019-09-30 8:20 ` Christoph Hellwig
2019-09-30 8:56 ` Thierry Reding
2019-09-30 9:55 ` Robin Murphy
2019-09-30 13:35 ` Thierry Reding
2019-09-30 9:20 ` Nicolas Saenz Julienne [this message]
2019-09-30 12:40 ` Marek Vasut
2019-09-30 12:52 ` Robin Murphy
2019-09-30 12:54 ` Marek Vasut
2019-09-30 13:05 ` Robin Murphy
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=202216c6e456bfd1a30f7cdb000aa714e3855e10.camel@suse.de \
--to=nsaenzjulienne@suse.de \
--cc=arnd@arndb.de \
--cc=devicetree@vger.kernel.org \
--cc=f.fainelli@gmail.com \
--cc=frowand.list@gmail.com \
--cc=geert+renesas@glider.be \
--cc=horms+renesas@verge.net.au \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=lorenzo.pieralisi@arm.com \
--cc=marek.vasut@gmail.com \
--cc=oza.oza@broadcom.com \
--cc=robh@kernel.org \
--cc=robin.murphy@arm.com \
--cc=wahrenst@gmx.net \
/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).