From: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
To: Hiroshi Doyu <hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Cc: "thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org"
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Subject: Re: [PATCH 1/1] arm/dts: Tegra30: Add device tree support for SMMU
Date: Wed, 18 Apr 2012 07:31:53 +0000 [thread overview]
Message-ID: <201204180731.54064.arnd@arndb.de> (raw)
In-Reply-To: <20120418.094448.2234414220947028341.hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
On Wednesday 18 April 2012, Hiroshi Doyu wrote:
> If we can consider IOMMU as one of the implementation of DMA(Direct
> Memory Access), the prefix "dma-(window)" may make sense here. Then,
> we don't have to introduce a new concept "IO virtual address(iova)" in
> addition to the existing "bus address"(?)
>
> Anyway, either name would be ok for me;)
I would just use dma-window, without the "ibm," prefix but following the
same conventions. Note that the of_parse_dma_window function is currently
only defined in powerpc specific code, and should get moved to
drivers/of from arch/powerpc/kernel/prom_parse.c.
Arnd
WARNING: multiple messages have this Message-ID (diff)
From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/1] arm/dts: Tegra30: Add device tree support for SMMU
Date: Wed, 18 Apr 2012 07:31:53 +0000 [thread overview]
Message-ID: <201204180731.54064.arnd@arndb.de> (raw)
In-Reply-To: <20120418.094448.2234414220947028341.hdoyu@nvidia.com>
On Wednesday 18 April 2012, Hiroshi Doyu wrote:
> If we can consider IOMMU as one of the implementation of DMA(Direct
> Memory Access), the prefix "dma-(window)" may make sense here. Then,
> we don't have to introduce a new concept "IO virtual address(iova)" in
> addition to the existing "bus address"(?)
>
> Anyway, either name would be ok for me;)
I would just use dma-window, without the "ibm," prefix but following the
same conventions. Note that the of_parse_dma_window function is currently
only defined in powerpc specific code, and should get moved to
drivers/of from arch/powerpc/kernel/prom_parse.c.
Arnd
next prev parent reply other threads:[~2012-04-18 7:31 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-13 10:22 [PATCH 1/1] arm/dts: Tegra30: Add device tree support for SMMU Hiroshi Doyu
[not found] ` <20120413.132205.1766846402066131036.hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-04-13 11:03 ` Thierry Reding
[not found] ` <20120413110331.GA11605-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-04-13 11:31 ` Hiroshi Doyu
[not found] ` <20120413.143104.1310879848248152784.hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-04-13 12:15 ` Thierry Reding
[not found] ` <20120413121510.GD11605-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-04-13 19:25 ` Stephen Warren
[not found] ` <4F887DA0.8030103-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-04-16 11:12 ` Hiroshi Doyu
[not found] ` <20120416.141238.381304581863200083.hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-04-16 15:34 ` Arnd Bergmann
[not found] ` <201204161534.20089.arnd-r2nGTMty4D4@public.gmane.org>
2012-04-18 5:17 ` Hiroshi Doyu
[not found] ` <20120418081746.995724e27bdc726049cd4965-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-04-18 5:41 ` Thierry Reding
[not found] ` <20120418054140.GA17506-RM9K5IK7kjIyiCvfTdI0JKcOhU4Rzj621B7CTYaBSLdn68oJJulU0Q@public.gmane.org>
2012-04-18 6:44 ` Hiroshi Doyu
2012-04-18 6:44 ` Hiroshi Doyu
[not found] ` <20120418.094448.2234414220947028341.hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-04-18 7:31 ` Arnd Bergmann [this message]
2012-04-18 7:31 ` Arnd Bergmann
[not found] ` <201204180731.54064.arnd-r2nGTMty4D4@public.gmane.org>
2012-04-18 9:18 ` Hiroshi Doyu
2012-04-18 9:18 ` Hiroshi Doyu
2012-04-18 9:18 ` Hiroshi Doyu
[not found] ` <20120418.121824.1894043789811063795.hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-04-18 9:26 ` Thierry Reding
2012-04-18 9:26 ` Thierry Reding
[not found] ` <20120418092613.GA8632-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-04-18 10:19 ` [PATCH 1/1] dt: Add general DMA window parser Hiroshi Doyu
2012-04-18 10:19 ` Hiroshi Doyu
2012-04-18 10:19 ` Hiroshi Doyu
[not found] ` <20120418.131907.2172387798112620167.hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-04-18 10:26 ` Thierry Reding
2012-04-18 10:26 ` Thierry Reding
[not found] ` <20120418102629.GA14533-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-04-18 10:36 ` Hiroshi Doyu
2012-04-18 10:36 ` Hiroshi Doyu
2012-04-18 10:36 ` Hiroshi Doyu
[not found] ` <20120418.133629.1664781135413277375.hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-04-18 10:54 ` Thierry Reding
2012-04-18 10:54 ` Thierry Reding
[not found] ` <20120418105423.GA5667-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-04-18 11:13 ` Hiroshi Doyu
2012-04-18 11:13 ` Hiroshi Doyu
2012-04-18 17:27 ` Stephen Warren
2012-04-18 17:27 ` Stephen Warren
[not found] ` <4F8EF99E.3050709-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-04-18 19:39 ` Thierry Reding
2012-04-18 19:39 ` Thierry Reding
[not found] ` <20120418193945.GA17960-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-04-19 12:32 ` Hiroshi Doyu
2012-04-19 12:32 ` Hiroshi Doyu
2012-04-19 12:19 ` Hiroshi Doyu
2012-04-19 12:19 ` Hiroshi Doyu
[not found] ` <20120419151920.68ab735a5b9eb8fb938b4d11-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-04-23 11:53 ` [PATCH v2 " Hiroshi Doyu
2012-04-23 11:53 ` Hiroshi Doyu
[not found] ` <20120423.145352.1868450546332033138.hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-04-23 18:16 ` Stephen Warren
2012-04-23 18:16 ` Stephen Warren
2012-04-13 19:33 ` [PATCH 1/1] arm/dts: Tegra30: Add device tree support for SMMU Stephen Warren
[not found] ` <4F887F9B.700-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-04-16 10:10 ` Hiroshi Doyu
[not found] ` <20120416.131059.331282986467061278.hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-04-16 16:07 ` Stephen Warren
[not found] ` <4F8C43AA.7090107-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-04-18 5:10 ` Hiroshi Doyu
[not found] ` <20120418081017.d3c630c6f7d09cd4ed039854-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-04-18 17:31 ` Stephen Warren
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