From: Christoph Hellwig <hch@lst.de>
To: Robin Murphy <robin.murphy@arm.com>
Cc: "Guillaume Tucker" <guillaume.tucker@collabora.com>,
"Christoph Hellwig" <hch@lst.de>,
iommu@lists.linux-foundation.org,
"Linus Torvalds" <torvalds@linux-foundation.org>,
"Jesper Dangaard Brouer" <brouer@redhat.com>,
"Tariq Toukan" <tariqt@mellanox.com>,
"Ilias Apalodimas" <ilias.apalodimas@linaro.org>,
"Toke Høiland-Jørgensen" <toke@toke.dk>,
"Konrad Rzeszutek Wilk" <konrad.wilk@oracle.com>,
"Tony Luck" <tony.luck@intel.com>,
"Fenghua Yu" <fenghua.yu@intel.com>,
"Marek Szyprowski" <m.szyprowski@samsung.com>,
"Keith Busch" <keith.busch@intel.com>,
"Jonathan Derrick" <jonathan.derrick@intel.com>,
linux-pci@vger.kernel.org, linux-ia64@vger.kernel.org,
x86@kernel.org, linux-kernel@vger.kernel.org,
"ezequiel Garcia" <ezequiel@collabora.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [15/15] dma-mapping: bypass indirect calls for dma-direct
Date: Wed, 19 Dec 2018 07:42:06 +0100 [thread overview]
Message-ID: <20181219064206.GA27018@lst.de> (raw)
In-Reply-To: <92096de9-7183-dbe8-2169-0143190591fa@arm.com>
On Tue, Dec 18, 2018 at 08:42:46PM +0000, Robin Murphy wrote:
>> [ 16.046084] rk_iommu ff8f3f00.iommu: DMA map error for DT
>
> Yup, with this patch as-is, anything which isn't behind an IOMMU will be
> erroneously banned from DMA entirely - see here:
>
> https://lore.kernel.org/lkml/20181214142435.GA18448@lst.de/
FYI, I'm still waiting for a review on that..
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
To: Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>
Cc: "Fenghua Yu" <fenghua.yu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
"Toke Høiland-Jørgensen" <toke-LJ9M9ZcSy1A@public.gmane.org>,
linux-ia64-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
"Konrad Rzeszutek Wilk"
<konrad.wilk-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>,
"ezequiel Garcia"
<ezequiel-ZGY8ohtN/8qB+jHODAdFcQ@public.gmane.org>,
"Guillaume Tucker"
<guillaume.tucker-ZGY8ohtN/8qB+jHODAdFcQ@public.gmane.org>,
"Ilias Apalodimas"
<ilias.apalodimas-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
"Keith Busch"
<keith.busch-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
"Tony Luck" <tony.luck-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>,
"Jesper Dangaard Brouer"
<brouer-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
"Linus Torvalds"
<torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
"Christoph Hellwig" <hch-jcswGhMUV9g@public.gmane.org>,
"Jonathan Derrick"
<jonathan.derrick-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
"Tariq Toukan" <tariqt-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Subject: Re: [15/15] dma-mapping: bypass indirect calls for dma-direct
Date: Wed, 19 Dec 2018 07:42:06 +0100 [thread overview]
Message-ID: <20181219064206.GA27018@lst.de> (raw)
In-Reply-To: <92096de9-7183-dbe8-2169-0143190591fa-5wv7dgnIgG8@public.gmane.org>
On Tue, Dec 18, 2018 at 08:42:46PM +0000, Robin Murphy wrote:
>> [ 16.046084] rk_iommu ff8f3f00.iommu: DMA map error for DT
>
> Yup, with this patch as-is, anything which isn't behind an IOMMU will be
> erroneously banned from DMA entirely - see here:
>
> https://lore.kernel.org/lkml/20181214142435.GA18448-jcswGhMUV9g@public.gmane.org/
FYI, I'm still waiting for a review on that..
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@lst.de>
To: Robin Murphy <robin.murphy@arm.com>
Cc: "Fenghua Yu" <fenghua.yu@intel.com>,
"Toke Høiland-Jørgensen" <toke@toke.dk>,
linux-ia64@vger.kernel.org,
"Konrad Rzeszutek Wilk" <konrad.wilk@oracle.com>,
"ezequiel Garcia" <ezequiel@collabora.com>,
"Guillaume Tucker" <guillaume.tucker@collabora.com>,
"Ilias Apalodimas" <ilias.apalodimas@linaro.org>,
linux-pci@vger.kernel.org, x86@kernel.org,
linux-kernel@vger.kernel.org,
"Keith Busch" <keith.busch@intel.com>,
iommu@lists.linux-foundation.org,
"Tony Luck" <tony.luck@intel.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"Jesper Dangaard Brouer" <brouer@redhat.com>,
"Marek Szyprowski" <m.szyprowski@samsung.com>,
"Linus Torvalds" <torvalds@linux-foundation.org>,
"Christoph Hellwig" <hch@lst.de>,
"Jonathan Derrick" <jonathan.derrick@intel.com>,
"Tariq Toukan" <tariqt@mellanox.com>
Subject: Re: [15/15] dma-mapping: bypass indirect calls for dma-direct
Date: Wed, 19 Dec 2018 07:42:06 +0100 [thread overview]
Message-ID: <20181219064206.GA27018@lst.de> (raw)
In-Reply-To: <92096de9-7183-dbe8-2169-0143190591fa@arm.com>
On Tue, Dec 18, 2018 at 08:42:46PM +0000, Robin Murphy wrote:
>> [ 16.046084] rk_iommu ff8f3f00.iommu: DMA map error for DT
>
> Yup, with this patch as-is, anything which isn't behind an IOMMU will be
> erroneously banned from DMA entirely - see here:
>
> https://lore.kernel.org/lkml/20181214142435.GA18448@lst.de/
FYI, I'm still waiting for a review on that..
_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@lst.de>
To: Robin Murphy <robin.murphy@arm.com>
Cc: "Guillaume Tucker" <guillaume.tucker@collabora.com>,
"Christoph Hellwig" <hch@lst.de>,
iommu@lists.linux-foundation.org,
"Linus Torvalds" <torvalds@linux-foundation.org>,
"Jesper Dangaard Brouer" <brouer@redhat.com>,
"Tariq Toukan" <tariqt@mellanox.com>,
"Ilias Apalodimas" <ilias.apalodimas@linaro.org>,
"Toke Høiland-Jørgensen" <toke@toke.dk>,
"Konrad Rzeszutek Wilk" <konrad.wilk@oracle.com>,
"Tony Luck" <tony.luck@intel.com>,
"Fenghua Yu" <fenghua.yu@intel.com>,
"Marek Szyprowski" <m.szyprowski@samsung.com>,
"Keith Busch" <keith.busch@intel.com>,
"Jonathan Derrick" <jonathan.derrick@intel.com>,
linux-pci@vger.kernel.org, linux-ia64@vger.kernel.org,
x86@kernel.org, linux-kernel@vger.kernel.org,
"ezequiel Garcia" <ezequiel@collabora.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [15/15] dma-mapping: bypass indirect calls for dma-direct
Date: Wed, 19 Dec 2018 06:42:06 +0000 [thread overview]
Message-ID: <20181219064206.GA27018@lst.de> (raw)
In-Reply-To: <92096de9-7183-dbe8-2169-0143190591fa@arm.com>
On Tue, Dec 18, 2018 at 08:42:46PM +0000, Robin Murphy wrote:
>> [ 16.046084] rk_iommu ff8f3f00.iommu: DMA map error for DT
>
> Yup, with this patch as-is, anything which isn't behind an IOMMU will be
> erroneously banned from DMA entirely - see here:
>
> https://lore.kernel.org/lkml/20181214142435.GA18448@lst.de/
FYI, I'm still waiting for a review on that..
next prev parent reply other threads:[~2018-12-19 6:42 UTC|newest]
Thread overview: 99+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-07 19:07 [RFC] avoid indirect calls for DMA direct mappings v2 Christoph Hellwig
2018-12-07 19:07 ` Christoph Hellwig
2018-12-07 19:07 ` Christoph Hellwig
2018-12-07 19:07 ` [PATCH 01/15] swiotlb: remove SWIOTLB_MAP_ERROR Christoph Hellwig
2018-12-07 19:07 ` Christoph Hellwig
2018-12-07 19:07 ` Christoph Hellwig
2018-12-07 19:07 ` [PATCH 02/15] swiotlb: remove dma_mark_clean Christoph Hellwig
2018-12-07 19:07 ` Christoph Hellwig
2018-12-07 19:07 ` Christoph Hellwig
2019-01-02 21:53 ` Tony Luck
2019-01-02 21:53 ` Tony Luck
2019-01-03 7:23 ` Christoph Hellwig
2019-01-03 7:23 ` Christoph Hellwig
2019-01-03 7:23 ` Christoph Hellwig
2019-01-03 17:35 ` Tony Luck
2019-01-03 17:35 ` Tony Luck
2019-01-03 17:35 ` Tony Luck
2019-01-04 8:09 ` Christoph Hellwig
2019-01-04 8:09 ` Christoph Hellwig
2019-01-04 8:09 ` Christoph Hellwig
2018-12-07 19:07 ` [PATCH 03/15] dma-direct: improve addressability error reporting Christoph Hellwig
2018-12-07 19:07 ` Christoph Hellwig
2018-12-07 19:07 ` Christoph Hellwig
2018-12-07 19:07 ` [PATCH 04/15] dma-direct: use dma_direct_map_page to implement dma_direct_map_sg Christoph Hellwig
2018-12-07 19:07 ` Christoph Hellwig
2018-12-07 19:07 ` Christoph Hellwig
2018-12-07 19:07 ` [PATCH 05/15] dma-direct: merge swiotlb_dma_ops into the dma_direct code Christoph Hellwig
2018-12-07 19:07 ` Christoph Hellwig
2018-12-07 19:07 ` Christoph Hellwig
2018-12-07 19:07 ` [PATCH 06/15] dma-mapping: simplify the dma_sync_single_range_for_{cpu,device} implementation Christoph Hellwig
2018-12-07 19:07 ` Christoph Hellwig
2018-12-07 19:07 ` [PATCH 06/15] dma-mapping: simplify the dma_sync_single_range_for_{cpu, device} implementation Christoph Hellwig
2018-12-07 19:07 ` [PATCH 07/15] dma-mapping: merge dma_unmap_page_attrs and dma_unmap_single_attrs Christoph Hellwig
2018-12-07 19:07 ` Christoph Hellwig
2018-12-07 19:07 ` [PATCH 08/15] dma-mapping: move dma_get_required_mask to kernel/dma Christoph Hellwig
2018-12-07 19:07 ` Christoph Hellwig
2018-12-07 19:07 ` [PATCH 09/15] dma-mapping: move various slow path functions out of line Christoph Hellwig
2018-12-07 19:07 ` Christoph Hellwig
2018-12-07 19:07 ` [PATCH 10/15] dma-mapping: move dma_cache_sync " Christoph Hellwig
2018-12-07 19:07 ` Christoph Hellwig
2018-12-07 19:07 ` [PATCH 11/15] dma-mapping: always build the direct mapping code Christoph Hellwig
2018-12-07 19:07 ` Christoph Hellwig
2018-12-07 19:07 ` [PATCH 12/15] dma-mapping: factor out dummy DMA ops Christoph Hellwig
2018-12-07 19:07 ` Christoph Hellwig
2018-12-07 19:07 ` [PATCH 13/15] ACPI / scan: Refactor _CCA enforcement Christoph Hellwig
2018-12-07 19:07 ` Christoph Hellwig
2018-12-14 21:15 ` Bjorn Helgaas
2018-12-14 21:15 ` Bjorn Helgaas
2018-12-07 19:07 ` [PATCH 14/15] vmd: use the proper dma_* APIs instead of direct methods calls Christoph Hellwig
2018-12-07 19:07 ` Christoph Hellwig
2018-12-14 21:17 ` Bjorn Helgaas
2018-12-14 21:17 ` Bjorn Helgaas
2018-12-14 21:34 ` Derrick, Jonathan
2018-12-14 21:34 ` Derrick, Jonathan
2018-12-07 19:07 ` [PATCH 15/15] dma-mapping: bypass indirect calls for dma-direct Christoph Hellwig
2018-12-07 19:07 ` Christoph Hellwig
2018-12-14 14:11 ` Marek Szyprowski
2018-12-14 14:11 ` Marek Szyprowski
2018-12-14 14:24 ` Christoph Hellwig
2018-12-14 14:24 ` Christoph Hellwig
2018-12-14 14:32 ` Marek Szyprowski
2018-12-14 14:32 ` Marek Szyprowski
2018-12-15 17:46 ` [15/15] " Guenter Roeck
2018-12-15 17:46 ` Guenter Roeck
2018-12-16 9:02 ` Christoph Hellwig
2018-12-16 9:02 ` Christoph Hellwig
2018-12-16 9:02 ` Christoph Hellwig
2018-12-18 20:34 ` Guillaume Tucker
2018-12-18 20:34 ` Guillaume Tucker
2018-12-18 20:34 ` Guillaume Tucker
2018-12-18 20:34 ` Guillaume Tucker
2018-12-18 20:42 ` Robin Murphy
2018-12-18 20:42 ` Robin Murphy
2018-12-18 20:42 ` Robin Murphy
2018-12-19 6:42 ` Christoph Hellwig [this message]
2018-12-19 6:42 ` Christoph Hellwig
2018-12-19 6:42 ` Christoph Hellwig
2018-12-19 6:42 ` Christoph Hellwig
2018-12-20 16:44 ` [PATCH 15/15] " Thierry Reding
2018-12-20 16:44 ` Thierry Reding
2018-12-20 16:46 ` Christoph Hellwig
2018-12-20 16:46 ` Christoph Hellwig
2018-12-08 16:06 ` [RFC] avoid indirect calls for DMA direct mappings v2 Jesper Dangaard Brouer
2018-12-08 16:06 ` Jesper Dangaard Brouer
2018-12-08 16:50 ` Christoph Hellwig
2018-12-08 16:50 ` Christoph Hellwig
2018-12-10 21:51 ` Luck, Tony
2018-12-10 21:51 ` Luck, Tony
2018-12-11 6:51 ` Christoph Hellwig
2018-12-11 6:51 ` Christoph Hellwig
2018-12-11 16:42 ` Luck, Tony
2018-12-11 16:42 ` Luck, Tony
2018-12-11 17:13 ` Luck, Tony
2018-12-11 17:13 ` Luck, Tony
2018-12-11 17:15 ` Christoph Hellwig
2018-12-11 17:15 ` Christoph Hellwig
2018-12-11 17:15 ` Christoph Hellwig
2018-12-13 20:08 ` Christoph Hellwig
2018-12-13 20:08 ` Christoph Hellwig
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