From: Thierry Reding <thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> To: Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>, Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org> Cc: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, Russell King <linux-I+IVW8TIWO2tmTQ+vhA3Yw@public.gmane.org>, dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, Daniel Vetter <daniel-/w4YWyX8dFk@public.gmane.org>, linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org Subject: [PATCH v2 4/5] drm/nouveau: tegra: Use dma_iommu_detach_device() Date: Wed, 25 Apr 2018 12:10:50 +0200 [thread overview] Message-ID: <20180425101051.15349-4-thierry.reding@gmail.com> (raw) In-Reply-To: <20180425101051.15349-1-thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> From: Thierry Reding <treding-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> Use the new dma_iommu_detach_device() function to replace the open-coded equivalent. Signed-off-by: Thierry Reding <treding-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> --- .../drm/nouveau/nvkm/engine/device/tegra.c | 19 ++----------------- 1 file changed, 2 insertions(+), 17 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c index 23428a7056e9..c0a7f3839cbb 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c @@ -20,10 +20,6 @@ * DEALINGS IN THE SOFTWARE. */ -#if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU) -#include <asm/dma-iommu.h> -#endif - #include <core/tegra.h> #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER #include "priv.h" @@ -110,19 +106,8 @@ nvkm_device_tegra_probe_iommu(struct nvkm_device_tegra *tdev) unsigned long pgsize_bitmap; int ret; -#if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU) - if (dev->archdata.mapping) { - struct dma_iommu_mapping *mapping = to_dma_iommu_mapping(dev); - - arm_iommu_release_mapping(mapping); - arm_iommu_detach_device(dev); - - if (dev->archdata.dma_coherent) - set_dma_ops(dev, &arm_coherent_dma_ops); - else - set_dma_ops(dev, &arm_dma_ops); - } -#endif + /* make sure we can use the IOMMU exclusively */ + dma_iommu_detach_device(dev); if (!tdev->func->iommu_bit) return; -- 2.17.0
WARNING: multiple messages have this Message-ID (diff)
From: thierry.reding@gmail.com (Thierry Reding) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 4/5] drm/nouveau: tegra: Use dma_iommu_detach_device() Date: Wed, 25 Apr 2018 12:10:50 +0200 [thread overview] Message-ID: <20180425101051.15349-4-thierry.reding@gmail.com> (raw) In-Reply-To: <20180425101051.15349-1-thierry.reding@gmail.com> From: Thierry Reding <treding@nvidia.com> Use the new dma_iommu_detach_device() function to replace the open-coded equivalent. Signed-off-by: Thierry Reding <treding@nvidia.com> --- .../drm/nouveau/nvkm/engine/device/tegra.c | 19 ++----------------- 1 file changed, 2 insertions(+), 17 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c index 23428a7056e9..c0a7f3839cbb 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c @@ -20,10 +20,6 @@ * DEALINGS IN THE SOFTWARE. */ -#if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU) -#include <asm/dma-iommu.h> -#endif - #include <core/tegra.h> #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER #include "priv.h" @@ -110,19 +106,8 @@ nvkm_device_tegra_probe_iommu(struct nvkm_device_tegra *tdev) unsigned long pgsize_bitmap; int ret; -#if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU) - if (dev->archdata.mapping) { - struct dma_iommu_mapping *mapping = to_dma_iommu_mapping(dev); - - arm_iommu_release_mapping(mapping); - arm_iommu_detach_device(dev); - - if (dev->archdata.dma_coherent) - set_dma_ops(dev, &arm_coherent_dma_ops); - else - set_dma_ops(dev, &arm_dma_ops); - } -#endif + /* make sure we can use the IOMMU exclusively */ + dma_iommu_detach_device(dev); if (!tdev->func->iommu_bit) return; -- 2.17.0
next prev parent reply other threads:[~2018-04-25 10:10 UTC|newest] Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-04-25 10:10 [PATCH v2 1/5] drm/nouveau: tegra: Detach from ARM DMA/IOMMU mapping Thierry Reding 2018-04-25 10:10 ` Thierry Reding [not found] ` <20180425101051.15349-1-thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> 2018-04-25 10:10 ` [PATCH v2 2/5] dma-mapping: Introduce dma_iommu_detach_device() API Thierry Reding 2018-04-25 10:10 ` Thierry Reding [not found] ` <20180425101051.15349-2-thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> 2018-04-25 15:19 ` Christoph Hellwig 2018-04-25 15:19 ` Christoph Hellwig [not found] ` <20180425151934.GC16075-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org> 2018-04-26 12:11 ` Thierry Reding 2018-04-26 12:11 ` Thierry Reding 2018-04-30 11:02 ` Thierry Reding 2018-04-30 11:02 ` Thierry Reding 2018-04-30 11:41 ` Robin Murphy 2018-04-30 11:41 ` Robin Murphy [not found] ` <e549979d-9f53-a329-da1a-ed5139958762-5wv7dgnIgG8@public.gmane.org> 2018-04-30 12:12 ` Thierry Reding 2018-04-30 12:12 ` Thierry Reding 2018-04-30 12:49 ` Robin Murphy 2018-04-30 12:49 ` Robin Murphy 2018-04-25 10:10 ` [PATCH v2 3/5] ARM: dma-mapping: Implement arch_iommu_detach_device() Thierry Reding 2018-04-25 10:10 ` Thierry Reding [not found] ` <20180425101051.15349-3-thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> 2018-04-25 15:20 ` Christoph Hellwig 2018-04-25 15:20 ` Christoph Hellwig [not found] ` <20180425152049.GD16075-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org> 2018-04-26 12:14 ` Thierry Reding 2018-04-26 12:14 ` Thierry Reding 2018-04-25 10:10 ` Thierry Reding [this message] 2018-04-25 10:10 ` [PATCH v2 4/5] drm/nouveau: tegra: Use dma_iommu_detach_device() Thierry Reding 2018-04-25 10:10 ` [PATCH v2 5/5] ARM: Unconditionally enable ARM_DMA_USE_IOMMU Thierry Reding 2018-04-25 10:10 ` Thierry Reding [not found] ` <20180425101051.15349-5-thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> 2018-04-25 10:25 ` Russell King - ARM Linux 2018-04-25 10:25 ` Russell King - ARM Linux 2018-04-25 15:17 ` Christoph Hellwig 2018-04-25 15:17 ` Christoph Hellwig 2018-04-25 15:18 ` [PATCH v2 1/5] drm/nouveau: tegra: Detach from ARM DMA/IOMMU mapping Christoph Hellwig 2018-04-25 15:18 ` Christoph Hellwig [not found] ` <20180425151815.GB16075-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org> 2018-04-26 12:09 ` Thierry Reding 2018-04-26 12:09 ` Thierry Reding 2018-04-25 15:28 ` Jordan Crouse 2018-04-25 15:28 ` Jordan Crouse [not found] ` <20180425152849.GA2447-9PYrDHPZ2Orvke4nUoYGnHL1okKdlPRT@public.gmane.org> 2018-04-26 12:41 ` Thierry Reding 2018-04-26 12:41 ` Thierry Reding 2018-04-26 12:59 ` Mikko Perttunen 2018-04-26 12:59 ` Mikko Perttunen [not found] ` <fd6e0d90-7614-296b-2927-7b2745e8fbde-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> 2018-04-26 13:14 ` Thierry Reding 2018-04-26 13:14 ` Thierry Reding
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