From: Robin Murphy <robin.murphy@arm.com> To: hch@lst.de, m.szyprowski@samsung.com Cc: lorenzo.pieralisi@arm.com, gregkh@linuxfoundation.org, joro@8bytes.org, x86@kernel.org, linux-acpi@vger.kernel.org, iommu@lists.linux-foundation.org, robh+dt@kernel.org, hanjun.guo@linaro.org, sudeep.holla@arm.com, frowand.list@gmail.com, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 4/7] of/device: Set bus DMA mask as appropriate Date: Mon, 23 Jul 2018 23:16:09 +0100 [thread overview] Message-ID: <cc56f074b8da7e03a187b2363b1f2c2955d62c1c.1532382222.git.robin.murphy@arm.com> (raw) In-Reply-To: <cover.1532382222.git.robin.murphy@arm.com> When an explicit DMA limit is described by firmware, we need to remember it regardless of how drivers might subsequently update their devices' masks. The new bus_dma_mask field does that. CC: Rob Herring <robh+dt@kernel.org> CC: Frank Rowand <frowand.list@gmail.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> --- drivers/of/device.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/of/device.c b/drivers/of/device.c index 33d85511d790..0d39633e8545 100644 --- a/drivers/of/device.c +++ b/drivers/of/device.c @@ -149,6 +149,7 @@ int of_dma_configure(struct device *dev, struct device_node *np, bool force_dma) * set by the driver. */ mask = DMA_BIT_MASK(ilog2(dma_addr + size - 1) + 1); + dev->bus_dma_mask = mask; dev->coherent_dma_mask &= mask; *dev->dma_mask &= mask; -- 2.17.1.dirty
WARNING: multiple messages have this Message-ID (diff)
From: robin.murphy@arm.com (Robin Murphy) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 4/7] of/device: Set bus DMA mask as appropriate Date: Mon, 23 Jul 2018 23:16:09 +0100 [thread overview] Message-ID: <cc56f074b8da7e03a187b2363b1f2c2955d62c1c.1532382222.git.robin.murphy@arm.com> (raw) In-Reply-To: <cover.1532382222.git.robin.murphy@arm.com> When an explicit DMA limit is described by firmware, we need to remember it regardless of how drivers might subsequently update their devices' masks. The new bus_dma_mask field does that. CC: Rob Herring <robh+dt@kernel.org> CC: Frank Rowand <frowand.list@gmail.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> --- drivers/of/device.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/of/device.c b/drivers/of/device.c index 33d85511d790..0d39633e8545 100644 --- a/drivers/of/device.c +++ b/drivers/of/device.c @@ -149,6 +149,7 @@ int of_dma_configure(struct device *dev, struct device_node *np, bool force_dma) * set by the driver. */ mask = DMA_BIT_MASK(ilog2(dma_addr + size - 1) + 1); + dev->bus_dma_mask = mask; dev->coherent_dma_mask &= mask; *dev->dma_mask &= mask; -- 2.17.1.dirty
next prev parent reply other threads:[~2018-07-23 22:16 UTC|newest] Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-07-23 22:16 [PATCH v2 0/7] Stop losing firmware-set DMA masks Robin Murphy 2018-07-23 22:16 ` Robin Murphy 2018-07-23 22:16 ` [PATCH v2 1/7] ACPI/IORT: Support address size limit for root complexes Robin Murphy 2018-07-23 22:16 ` Robin Murphy 2018-07-23 22:16 ` [PATCH v2 2/7] dma-mapping: Generalise dma_32bit_limit flag Robin Murphy 2018-07-23 22:16 ` Robin Murphy [not found] ` <c1720f0181b66f711e4097d85149757b16a7b0a7.1532382222.git.robin.murphy-5wv7dgnIgG8@public.gmane.org> 2018-07-25 11:29 ` Christoph Hellwig 2018-07-25 11:29 ` Christoph Hellwig 2018-07-27 17:45 ` Grygorii Strashko via iommu 2018-07-27 17:45 ` Grygorii Strashko [not found] ` <7872d914-8ea7-06e4-4a0c-489023e098d6-l0cyMroinI0@public.gmane.org> 2018-07-27 20:11 ` Robin Murphy 2018-07-27 20:11 ` Robin Murphy [not found] ` <5354ef69-c54e-170b-62d4-5110dc60aa8f-5wv7dgnIgG8@public.gmane.org> 2018-07-27 20:41 ` Grygorii Strashko via iommu 2018-07-27 20:41 ` Grygorii Strashko 2018-07-23 22:16 ` [PATCH v2 3/7] ACPI/IORT: Set bus DMA mask as appropriate Robin Murphy 2018-07-23 22:16 ` Robin Murphy [not found] ` <07cbf8f77fac552dca9b4c85a9d3bd8ed5a4cd29.1532382222.git.robin.murphy-5wv7dgnIgG8@public.gmane.org> 2018-07-25 11:29 ` Christoph Hellwig 2018-07-25 11:29 ` Christoph Hellwig 2018-07-25 13:16 ` Lorenzo Pieralisi 2018-07-25 13:16 ` Lorenzo Pieralisi 2018-07-23 22:16 ` Robin Murphy [this message] 2018-07-23 22:16 ` [PATCH v2 4/7] of/device: " Robin Murphy [not found] ` <cc56f074b8da7e03a187b2363b1f2c2955d62c1c.1532382222.git.robin.murphy-5wv7dgnIgG8@public.gmane.org> 2018-07-25 11:30 ` Christoph Hellwig 2018-07-25 11:30 ` Christoph Hellwig 2018-07-23 22:16 ` [PATCH v2 5/7] iommu/dma: Respect bus DMA limit for IOVAs Robin Murphy 2018-07-23 22:16 ` Robin Murphy [not found] ` <d370670edae9c9c537a5280c5e7c96bf3ec7ed8f.1532382222.git.robin.murphy-5wv7dgnIgG8@public.gmane.org> 2018-07-26 8:58 ` Christoph Hellwig 2018-07-26 8:58 ` Christoph Hellwig 2018-07-23 22:16 ` [PATCH v2 6/7] ACPI/IORT: Don't set default coherent DMA mask Robin Murphy 2018-07-23 22:16 ` Robin Murphy [not found] ` <3525869e8e7530128bf9718ae8af7d7564b3c684.1532382222.git.robin.murphy-5wv7dgnIgG8@public.gmane.org> 2018-07-25 15:27 ` Lorenzo Pieralisi 2018-07-25 15:27 ` Lorenzo Pieralisi 2018-07-25 15:43 ` Robin Murphy 2018-07-25 15:43 ` Robin Murphy 2018-07-23 22:16 ` [PATCH v2 7/7] OF: " Robin Murphy 2018-07-23 22:16 ` Robin Murphy [not found] ` <66c08e4df2032fde82a2f97544f41fd3a2f24a94.1532382222.git.robin.murphy-5wv7dgnIgG8@public.gmane.org> 2018-07-26 23:52 ` Grygorii Strashko via iommu 2018-07-26 23:52 ` Grygorii Strashko 2018-07-27 0:22 ` Grygorii Strashko 2018-07-27 0:22 ` Grygorii Strashko [not found] ` <92d6b010-b5c0-fc59-0668-5b455e26c912-l0cyMroinI0@public.gmane.org> 2018-07-27 11:36 ` Robin Murphy 2018-07-27 11:36 ` Robin Murphy 2018-07-27 17:34 ` Grygorii Strashko 2018-07-27 17:34 ` Grygorii Strashko [not found] ` <108a6254-1257-5daf-deaa-69bc4db2ec77-l0cyMroinI0@public.gmane.org> 2018-07-27 19:46 ` Robin Murphy 2018-07-27 19:46 ` Robin Murphy [not found] ` <c7a9c7ae-1f4a-af9d-df78-1f48bb5c28a5-5wv7dgnIgG8@public.gmane.org> 2018-07-27 18:13 ` Russell King - ARM Linux 2018-07-27 18:13 ` Russell King - ARM Linux [not found] ` <20180727181302.GC17271-l+eeeJia6m9URfEZ8mYm6t73F7V6hmMc@public.gmane.org> 2018-07-27 18:45 ` Grygorii Strashko via iommu 2018-07-27 18:45 ` Grygorii Strashko [not found] ` <affa2718-5f3a-7439-db25-ce171a99414a-l0cyMroinI0@public.gmane.org> 2018-07-27 20:42 ` Robin Murphy 2018-07-27 20:42 ` Robin Murphy 2018-07-27 19:29 ` Robin Murphy 2018-07-27 19:29 ` Robin Murphy 2018-07-26 23:45 ` [PATCH v2 0/7] Stop losing firmware-set DMA masks Grygorii Strashko 2018-07-26 23:45 ` Grygorii Strashko [not found] ` <c73bc8d2-b745-ff31-1949-7a59ab04ede6-l0cyMroinI0@public.gmane.org> 2018-07-27 10:55 ` Robin Murphy 2018-07-27 10:55 ` Robin Murphy [not found] ` <8b8ac841-5c4c-ae27-21d5-d7aaaf4c277c-5wv7dgnIgG8@public.gmane.org> 2018-07-27 17:22 ` Grygorii Strashko via iommu 2018-07-27 17:22 ` Grygorii Strashko [not found] ` <cover.1532382222.git.robin.murphy-5wv7dgnIgG8@public.gmane.org> 2018-07-25 11:31 ` Christoph Hellwig 2018-07-25 11:31 ` Christoph Hellwig [not found] ` <20180725113122.GD24736-jcswGhMUV9g@public.gmane.org> 2018-07-25 12:11 ` Joerg Roedel 2018-07-25 12:11 ` Joerg Roedel 2018-07-25 12:12 ` Robin Murphy 2018-07-25 12:12 ` Robin Murphy [not found] ` <5e036ade-db0b-f628-a4a0-6d014d1d76c8-5wv7dgnIgG8@public.gmane.org> 2018-07-25 12:17 ` Will Deacon 2018-07-25 12:17 ` Will Deacon 2018-07-25 13:58 ` Ard Biesheuvel 2018-07-25 13:58 ` Ard Biesheuvel 2018-07-26 9:00 ` Christoph Hellwig 2018-07-26 9:00 ` Christoph Hellwig 2018-07-29 12:32 ` Arnd Bergmann 2018-07-29 12:32 ` Arnd Bergmann [not found] ` <CAK8P3a3HDJ6svNN_cwvegxu20yNv8+tvc0D1A6Ooeq8agawbFg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2018-07-31 11:24 ` Robin Murphy 2018-07-31 11:24 ` Robin Murphy [not found] ` <1ccccc4b-7d4c-a3ee-23a2-f108916705e9-5wv7dgnIgG8@public.gmane.org> 2018-08-06 10:01 ` Arnd Bergmann 2018-08-06 10:01 ` Arnd Bergmann [not found] ` <CAK8P3a3ZcOeHMR_qFnsBdXED+2X8_AEMKoS5MeAQhbapbGmm9w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> 2018-08-06 12:13 ` Christoph Hellwig 2018-08-06 12:13 ` Christoph Hellwig [not found] ` <20180806121334.GA5340-jcswGhMUV9g@public.gmane.org> 2018-08-06 12:13 ` Arnd Bergmann 2018-08-06 12:13 ` Arnd Bergmann
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