From: Stephen Warren <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
To: Hiroshi Doyu <hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Cc: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
Subject: Re: [PATCH v2 22/22] ARM: dma-mapping: Drop GFP_COMP for DMA memory allocations
Date: Thu, 18 Jul 2013 14:45:11 -0600 [thread overview]
Message-ID: <51E853D7.4070200@wwwdotorg.org> (raw)
In-Reply-To: <1373021097-32420-23-git-send-email-hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
On 07/05/2013 04:44 AM, Hiroshi Doyu wrote:
> arm_iommu_alloc_attrs wants to split pages after allocation in order
> to reduce the memory footprint. This does not work well with GFP_COMP
> pages, so drop this flag before allocation.
>
> (ref: ea2e7057c0234cfb8b09467d8f137760d371fc72)
Include the commit description too, so people have a clue what that
commit is.
Presumably this fix can go through the core ARM tree independently from
this series? Or, will this series cause problems if applied without this
patch being applied first?
BTW, I don't see anything in this series that adds the mandatory
properties to DT for all this to work. I assume if I just apply this
series, everything will blow up? If so, it's usual to say "[PATCH RFC"
rather than "[PATCH" in the email subject.
WARNING: multiple messages have this Message-ID (diff)
From: swarren@wwwdotorg.org (Stephen Warren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 22/22] ARM: dma-mapping: Drop GFP_COMP for DMA memory allocations
Date: Thu, 18 Jul 2013 14:45:11 -0600 [thread overview]
Message-ID: <51E853D7.4070200@wwwdotorg.org> (raw)
In-Reply-To: <1373021097-32420-23-git-send-email-hdoyu@nvidia.com>
On 07/05/2013 04:44 AM, Hiroshi Doyu wrote:
> arm_iommu_alloc_attrs wants to split pages after allocation in order
> to reduce the memory footprint. This does not work well with GFP_COMP
> pages, so drop this flag before allocation.
>
> (ref: ea2e7057c0234cfb8b09467d8f137760d371fc72)
Include the commit description too, so people have a clue what that
commit is.
Presumably this fix can go through the core ARM tree independently from
this series? Or, will this series cause problems if applied without this
patch being applied first?
BTW, I don't see anything in this series that adds the mandatory
properties to DT for all this to work. I assume if I just apply this
series, everything will blow up? If so, it's usual to say "[PATCH RFC"
rather than "[PATCH" in the email subject.
next prev parent reply other threads:[~2013-07-18 20:45 UTC|newest]
Thread overview: 132+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-05 10:44 [PATCH v2 00/22] Unified SMMU driver among Tegra SoCs Hiroshi Doyu
2013-07-05 10:44 ` Hiroshi Doyu
[not found] ` <1373021097-32420-1-git-send-email-hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-05 10:44 ` [PATCH v2 01/22] [HACK] of: dev_node has struct device pointer Hiroshi Doyu
2013-07-05 10:44 ` Hiroshi Doyu
[not found] ` <1373021097-32420-2-git-send-email-hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-16 22:57 ` Stephen Warren
2013-07-16 22:57 ` Stephen Warren
[not found] ` <51E5CFBF.5080407-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-07-16 23:16 ` Thierry Reding
2013-07-16 23:16 ` Thierry Reding
[not found] ` <20130716231629.GA12189-RcKxWJ4Cfj3FNiLNb7+IINdj8bHVeoWogfoxzgwHRXE@public.gmane.org>
2013-07-29 10:13 ` Hiroshi Doyu
2013-07-29 10:13 ` Hiroshi Doyu
[not found] ` <20130729.131344.1221933042559369096.hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-29 13:13 ` Lorenzo Pieralisi
2013-07-29 13:13 ` Lorenzo Pieralisi
2013-07-05 10:44 ` [PATCH v2 02/22] ARM: tegra: Populate AHB/IOMMU earlier than others Hiroshi Doyu
2013-07-05 10:44 ` Hiroshi Doyu
[not found] ` <1373021097-32420-3-git-send-email-hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-16 23:03 ` Stephen Warren
2013-07-16 23:03 ` Stephen Warren
2013-07-05 10:44 ` [PATCH v2 03/22] ARM: tegra: Create a DT header defining swgroups ID Hiroshi Doyu
2013-07-05 10:44 ` Hiroshi Doyu
[not found] ` <1373021097-32420-4-git-send-email-hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-16 23:07 ` Stephen Warren
2013-07-16 23:07 ` Stephen Warren
[not found] ` <51E5D220.1070708-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-07-29 10:53 ` Hiroshi Doyu
2013-07-29 10:53 ` Hiroshi Doyu
[not found] ` <20130729.135336.943359637886118972.hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-29 17:45 ` Stephen Warren
2013-07-29 17:45 ` Stephen Warren
[not found] ` <51F6AA2B.7050509-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-07-30 4:56 ` Hiroshi Doyu
2013-07-30 4:56 ` Hiroshi Doyu
2013-07-05 10:44 ` [PATCH v2 04/22] ARM: dt: tegra30: iommu: Add "nvidia,swgroup" Hiroshi Doyu
2013-07-05 10:44 ` Hiroshi Doyu
[not found] ` <1373021097-32420-5-git-send-email-hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-16 23:10 ` Stephen Warren
2013-07-16 23:10 ` Stephen Warren
2013-07-05 10:44 ` [PATCH v2 05/22] ARM: dt: tegra30: iommu: Add "nvidia,memory-client" Hiroshi Doyu
2013-07-05 10:44 ` Hiroshi Doyu
[not found] ` <1373021097-32420-6-git-send-email-hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-16 23:14 ` [PATCH v2 05/22] ARM: dt: tegra30: iommu: Add "nvidia, memory-client" Stephen Warren
2013-07-16 23:14 ` Stephen Warren
[not found] ` <51E5D3D9.2090608-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-07-29 11:06 ` [PATCH v2 05/22] ARM: dt: tegra30: iommu: Add "nvidia,memory-client" Hiroshi Doyu
2013-07-29 11:06 ` Hiroshi Doyu
[not found] ` <20130729.140646.649065361266278007.hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-29 17:47 ` Stephen Warren
2013-07-29 17:47 ` [PATCH v2 05/22] ARM: dt: tegra30: iommu: Add "nvidia, memory-client" Stephen Warren
[not found] ` <51F6AA98.4020701-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-07-30 5:11 ` [PATCH v2 05/22] ARM: dt: tegra30: iommu: Add "nvidia,memory-client" Hiroshi Doyu
2013-07-30 5:11 ` Hiroshi Doyu
2013-07-05 10:44 ` [PATCH v2 06/22] ARM: dt: tegra114: iommu: Fix IOMMU register address Hiroshi Doyu
2013-07-05 10:44 ` Hiroshi Doyu
[not found] ` <1373021097-32420-7-git-send-email-hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-16 23:18 ` Stephen Warren
2013-07-16 23:18 ` Stephen Warren
[not found] ` <51E5D4C5.4090109-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-07-16 23:27 ` Thierry Reding
2013-07-16 23:27 ` Thierry Reding
2013-07-05 10:44 ` [PATCH v2 07/22] ARM: dt: tegra114: iommu: Add "nvidia,swgroups" Hiroshi Doyu
2013-07-05 10:44 ` Hiroshi Doyu
2013-07-05 10:44 ` [PATCH v2 08/22] ARM: dt: tegra114: Add "nvidia,memory-client" Hiroshi Doyu
2013-07-05 10:44 ` Hiroshi Doyu
2013-07-05 10:44 ` [PATCH v2 09/22] amba: Move AHB to core_initcall Hiroshi Doyu
2013-07-05 10:44 ` Hiroshi Doyu
[not found] ` <1373021097-32420-10-git-send-email-hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-16 23:20 ` Stephen Warren
2013-07-16 23:20 ` Stephen Warren
2013-07-05 10:44 ` [PATCH v2 10/22] iommu/tegra: smmu: Move IOMMU " Hiroshi Doyu
2013-07-05 10:44 ` Hiroshi Doyu
[not found] ` <1373021097-32420-11-git-send-email-hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-16 23:21 ` Stephen Warren
2013-07-16 23:21 ` Stephen Warren
2013-07-05 10:44 ` [PATCH v2 11/22] iommu/tegra: smmu: Add Tegra 114 support Hiroshi Doyu
2013-07-05 10:44 ` Hiroshi Doyu
[not found] ` <1373021097-32420-12-git-send-email-hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-18 20:01 ` Stephen Warren
2013-07-18 20:01 ` Stephen Warren
2013-07-05 10:44 ` [PATCH v2 12/22] iommu/tegra: smmu: Select ARM_DMA_USE_IOMMU in Kconfig Hiroshi Doyu
2013-07-05 10:44 ` Hiroshi Doyu
2013-07-05 10:44 ` [PATCH v2 13/22] iommu/tegra: smmu: Create default IOVA maps Hiroshi Doyu
2013-07-05 10:44 ` Hiroshi Doyu
[not found] ` <1373021097-32420-14-git-send-email-hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-18 20:10 ` Stephen Warren
2013-07-18 20:10 ` Stephen Warren
[not found] ` <51E84BB5.9010303-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-07-29 11:24 ` Hiroshi Doyu
2013-07-29 11:24 ` Hiroshi Doyu
[not found] ` <20130729.142409.995770519696534476.hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-29 17:50 ` Stephen Warren
2013-07-29 17:50 ` Stephen Warren
2013-07-05 10:44 ` [PATCH v2 14/22] iommu/tegra: smmu: Register platform_device to IOMMU dynamically Hiroshi Doyu
2013-07-05 10:44 ` Hiroshi Doyu
[not found] ` <1373021097-32420-15-git-send-email-hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-18 20:17 ` Stephen Warren
2013-07-18 20:17 ` Stephen Warren
[not found] ` <51E84D51.2030404-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-07-29 11:27 ` Hiroshi Doyu
2013-07-29 11:27 ` Hiroshi Doyu
[not found] ` <20130729.142752.1020949402019811407.hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-29 17:54 ` Stephen Warren
2013-07-29 17:54 ` Stephen Warren
[not found] ` <51F6AC41.30007-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-07-30 5:18 ` Hiroshi Doyu
2013-07-30 5:18 ` Hiroshi Doyu
2013-07-05 10:44 ` [PATCH v2 15/22] iommu/tegra: smmu: Calculate ASID register offset by ID Hiroshi Doyu
2013-07-05 10:44 ` Hiroshi Doyu
[not found] ` <1373021097-32420-16-git-send-email-hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-18 20:18 ` Stephen Warren
2013-07-18 20:18 ` Stephen Warren
2013-07-05 10:44 ` [PATCH v2 16/22] iommu/tegra: smmu: Get "nvidia,swgroup" from DT Hiroshi Doyu
2013-07-05 10:44 ` Hiroshi Doyu
[not found] ` <1373021097-32420-17-git-send-email-hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-18 20:28 ` Stephen Warren
2013-07-18 20:28 ` Stephen Warren
[not found] ` <51E84FFA.8020509-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-07-29 11:39 ` Hiroshi Doyu
2013-07-29 11:39 ` Hiroshi Doyu
[not found] ` <20130729.143950.524913713971518557.hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-29 18:00 ` Stephen Warren
2013-07-29 18:00 ` Stephen Warren
2013-07-05 10:44 ` [PATCH v2 17/22] iommu/tegra: smmu: Unfied driver for Tegra SoCs Hiroshi Doyu
2013-07-05 10:44 ` Hiroshi Doyu
2013-07-05 10:44 ` [PATCH v2 18/22] iommu/tegra: smmu: Use dt-bindings MACRO Hiroshi Doyu
2013-07-05 10:44 ` Hiroshi Doyu
[not found] ` <1373021097-32420-19-git-send-email-hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-18 20:30 ` Stephen Warren
2013-07-18 20:30 ` Stephen Warren
2013-07-05 10:44 ` [PATCH v2 19/22] iommu/tegra: smmu: Workaround PCIe IOMMU'able Hiroshi Doyu
2013-07-05 10:44 ` Hiroshi Doyu
[not found] ` <1373021097-32420-20-git-send-email-hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-18 20:33 ` Stephen Warren
2013-07-18 20:33 ` Stephen Warren
2013-07-05 10:44 ` [PATCH v2 20/22] iommu/tegra: smmu: Get "nvidia,memory-client" from DT Hiroshi Doyu
2013-07-05 10:44 ` [PATCH v2 20/22] iommu/tegra: smmu: Get "nvidia, memory-client" " Hiroshi Doyu
[not found] ` <1373021097-32420-21-git-send-email-hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-18 20:40 ` [PATCH v2 20/22] iommu/tegra: smmu: Get "nvidia,memory-client" " Stephen Warren
2013-07-18 20:40 ` Stephen Warren
2013-07-18 20:40 ` Stephen Warren
2013-07-05 10:44 ` [PATCH v2 21/22] iommu/tegra: smmu: Support Multiple ASID Hiroshi Doyu
2013-07-05 10:44 ` Hiroshi Doyu
[not found] ` <1373021097-32420-22-git-send-email-hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-18 20:43 ` Stephen Warren
2013-07-18 20:43 ` Stephen Warren
[not found] ` <51E8535A.30605-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-07-29 10:31 ` Hiroshi Doyu
2013-07-29 10:31 ` Hiroshi Doyu
[not found] ` <20130729.133155.1836775489422797370.hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-29 17:41 ` Stephen Warren
2013-07-29 17:41 ` Stephen Warren
[not found] ` <51F6A943.8000004-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-07-30 5:22 ` Hiroshi Doyu
2013-07-30 5:22 ` Hiroshi Doyu
2013-07-05 10:44 ` [PATCH v2 22/22] ARM: dma-mapping: Drop GFP_COMP for DMA memory allocations Hiroshi Doyu
2013-07-05 10:44 ` Hiroshi Doyu
[not found] ` <1373021097-32420-23-git-send-email-hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-18 20:45 ` Stephen Warren [this message]
2013-07-18 20:45 ` Stephen Warren
2013-07-05 11:03 ` [PATCH v2 00/22] Unified SMMU driver among Tegra SoCs Marc Dietrich
2013-07-05 11:03 ` Marc Dietrich
[not found] ` <4999563.JlU6BysXQl-D3pzGp0ZKuDWZbiwp4sFPyrtisivX6KghOMvlBiLbJSELgA04lAiVw@public.gmane.org>
2013-07-05 11:08 ` Hiroshi Doyu
2013-07-05 11:08 ` Hiroshi Doyu
2013-07-08 8:47 ` Hiroshi Doyu
[not found] ` <20130708.114736.1280783845180530098.hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-08 15:49 ` Stephen Warren
[not found] ` <51DADF91.30009-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-07-08 17:11 ` Hiroshi Doyu
[not found] ` <20130708.201148.1964850060334610089.hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-07-08 17:37 ` Stephen Warren
2013-09-23 17:07 ` Hiroshi Doyu
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