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From: Robin Murphy <robin.murphy@arm.com>
To: joro@8bytes.org, will@kernel.org
Cc: linux-kernel@vger.kernel.org, dianders@chromium.org,
	iommu@lists.linux-foundation.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH 15/23] iommu/amd: Prepare for multiple DMA domain types
Date: Wed, 21 Jul 2021 19:20:26 +0100	[thread overview]
Message-ID: <933496cfa22214e99bc8d48d62bdef112b44c80f.1626888445.git.robin.murphy@arm.com> (raw)
In-Reply-To: <cover.1626888444.git.robin.murphy@arm.com>

The DMA ops setup can simply be unconditional, since iommu-dma
already knows not to touch identity domains.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
---
 drivers/iommu/amd/iommu.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c
index 40ae7130fc80..1e992ef21f34 100644
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -1707,14 +1707,9 @@ static struct iommu_device *amd_iommu_probe_device(struct device *dev)
 
 static void amd_iommu_probe_finalize(struct device *dev)
 {
-	struct iommu_domain *domain;
-
 	/* Domains are initialized for this device - have a look what we ended up with */
-	domain = iommu_get_domain_for_dev(dev);
-	if (domain->type == IOMMU_DOMAIN_DMA)
-		iommu_setup_dma_ops(dev, 0, U64_MAX);
-	else
-		set_dma_ops(dev, NULL);
+	set_dma_ops(dev, NULL);
+	iommu_setup_dma_ops(dev, 0, U64_MAX);
 }
 
 static void amd_iommu_release_device(struct device *dev)
-- 
2.25.1

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  parent reply	other threads:[~2021-07-21 18:21 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-21 18:20 [PATCH 00/23] iommu: Refactor DMA domain strictness Robin Murphy
2021-07-21 18:20 ` [PATCH 01/23] iommu: Pull IOVA cookie management into the core Robin Murphy
2021-07-21 18:20 ` [PATCH 02/23] iommu/amd: Drop IOVA cookie management Robin Murphy
2021-07-21 18:20 ` [PATCH 03/23] iommu/arm-smmu: " Robin Murphy
2021-07-21 18:20 ` [PATCH 04/23] iommu/vt-d: " Robin Murphy
2021-07-21 18:20 ` [PATCH 05/23] iommu/exynos: " Robin Murphy
2021-07-21 18:20 ` [PATCH 06/23] iommu/ipmmu-vmsa: " Robin Murphy
2021-07-21 18:20 ` [PATCH 07/23] iommu/mtk: " Robin Murphy
2021-07-21 18:20 ` [PATCH 08/23] iommu/rockchip: " Robin Murphy
2021-07-21 18:20 ` [PATCH 09/23] iommu/sprd: " Robin Murphy
2021-07-21 18:20 ` [PATCH 10/23] iommu/sun50i: " Robin Murphy
2021-07-21 18:20 ` [PATCH 11/23] iommu/virtio: " Robin Murphy
2021-07-21 18:20 ` [PATCH 12/23] iommu/dma: Unexport " Robin Murphy
2021-07-21 18:20 ` [PATCH 13/23] iommu/dma: Remove redundant "!dev" checks Robin Murphy
2021-07-26  8:28   ` John Garry
2021-07-21 18:20 ` [PATCH 14/23] iommu: Introduce explicit type for non-strict DMA domains Robin Murphy
2021-07-21 18:20 ` Robin Murphy [this message]
2021-07-21 18:20 ` [PATCH 16/23] iommu/arm-smmu: Prepare for multiple DMA domain types Robin Murphy
2021-07-26 12:46   ` Joerg Roedel
2021-07-26 13:09     ` Robin Murphy
2021-07-26 18:43       ` Joerg Roedel
2021-07-21 18:20 ` [PATCH 17/23] iommu/vt-d: " Robin Murphy
2021-07-22 16:44   ` kernel test robot
2021-07-22 17:30     ` Robin Murphy
2021-07-22 18:44   ` kernel test robot
2021-07-24  5:23   ` Lu Baolu
2021-07-26  8:30     ` Robin Murphy
2021-07-21 18:20 ` [PATCH 18/23] iommu: Express DMA strictness via the domain type Robin Murphy
2021-07-24  5:29   ` Lu Baolu
2021-07-26  8:27     ` Robin Murphy
2021-07-26 11:31       ` Lu Baolu
2021-07-26 12:29       ` Lu Baolu
2021-07-26 12:43         ` Robin Murphy
2021-07-21 18:20 ` [PATCH 19/23] iommu: Expose DMA domain strictness via sysfs Robin Murphy
2021-07-21 18:20 ` [PATCH 20/23] iommu: Allow choosing DMA strictness at build time Robin Murphy
2021-07-21 18:20 ` [PATCH 21/23] iommu/dma: Factor out flush queue init Robin Murphy
2021-07-21 18:20 ` [PATCH 22/23] iommu: Allow enabling non-strict mode dynamically Robin Murphy
2021-07-21 18:20 ` [PATCH 23/23] iommu/arm-smmu: Allow non-strict in pgtable_quirks interface Robin Murphy
2021-07-26  8:13 ` [PATCH 00/23] iommu: Refactor DMA domain strictness John Garry
2021-07-26 12:06   ` Robin Murphy
2021-07-26 13:02 ` Joerg Roedel

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