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From: Will Deacon <will@kernel.org>
To: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org
Cc: Will Deacon <will@kernel.org>,
	Robin Murphy <robin.murphy@arm.com>,
	Joerg Roedel <joro@8bytes.org>,
	Bjorn Helgaas <bhelgaas@google.com>,
	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Subject: [PATCH 2/7] iommu/of: Request ACS from the PCI core when configuring IOMMU linkage
Date: Wed, 30 Oct 2019 14:51:07 +0000	[thread overview]
Message-ID: <20191030145112.19738-3-will@kernel.org> (raw)
In-Reply-To: <20191030145112.19738-1-will@kernel.org>

To avoid having to export 'pci_request_acs()' to modular IOMMU drivers,
move the call into the 'of_dma_configure()' path in a similar manner to
the way in which ACS is configured when probing via ACPI/IORT.

Signed-off-by: Will Deacon <will@kernel.org>
---
 drivers/iommu/of_iommu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c
index 614a93aa5305..78faa9f73a91 100644
--- a/drivers/iommu/of_iommu.c
+++ b/drivers/iommu/of_iommu.c
@@ -177,6 +177,7 @@ const struct iommu_ops *of_iommu_configure(struct device *dev,
 			.np = master_np,
 		};
 
+		pci_request_acs();
 		err = pci_for_each_dma_alias(to_pci_dev(dev),
 					     of_pci_iommu_init, &info);
 	} else if (dev_is_fsl_mc(dev)) {
-- 
2.24.0.rc0.303.g954a862665-goog


  parent reply	other threads:[~2019-10-30 14:51 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-30 14:51 [PATCH 0/7] iommu: Permit modular builds of ARM SMMU[v3] drivers Will Deacon
2019-10-30 14:51 ` [PATCH 1/7] drivers/iommu: Export core IOMMU API symbols to permit modular drivers Will Deacon
2019-10-30 14:51 ` Will Deacon [this message]
2019-10-30 14:51 ` [PATCH 3/7] PCI: Export pci_ats_disabled() as a GPL symbol to modules Will Deacon
2019-10-30 20:30   ` Bjorn Helgaas
2019-10-30 14:51 ` [PATCH 4/7] Revert "iommu/arm-smmu: Make arm-smmu-v3 explicitly non-modular" Will Deacon
2019-10-30 14:51 ` [PATCH 5/7] iommu/arm-smmu-v3: Allow building as a module Will Deacon
2019-10-30 19:31   ` Joerg Roedel
2019-10-31 15:42     ` Will Deacon
2019-11-04 19:15       ` Jean-Philippe Brucker
2019-11-08 14:54         ` Will Deacon
2019-11-05 12:15       ` Joerg Roedel
2019-11-08 11:03         ` Will Deacon
2019-10-30 14:51 ` [PATCH 6/7] Revert "iommu/arm-smmu: Make arm-smmu explicitly non-modular" Will Deacon
2019-10-30 23:09   ` Jordan Crouse
2019-10-31 12:03     ` Will Deacon
2019-10-31 15:32       ` Jordan Crouse
2019-10-30 14:51 ` [PATCH 7/7] iommu/arm-smmu: Allow building as a module Will Deacon
2019-10-30 15:22   ` Rob Herring
2019-10-30 15:26     ` Will Deacon
2019-10-30 15:33     ` Robin Murphy
2019-11-04 19:34   ` Isaac J. Manjarres
2019-11-07 12:48     ` Will Deacon
2019-10-30 15:35 ` [PATCH 0/7] iommu: Permit modular builds of ARM SMMU[v3] drivers Robin Murphy
2019-10-30 15:54   ` Will Deacon
2019-10-31  0:57     ` Saravana Kannan
2019-10-31 19:37       ` Jean-Philippe Brucker
2019-10-31 23:34         ` Saravana Kannan
2019-11-01 10:27           ` John Garry
2019-11-01 21:13             ` Saravana Kannan
2019-11-04 12:16               ` John Garry
2019-11-04 13:29                 ` Robin Murphy
2019-11-07  6:11                   ` Saravana Kannan
2019-11-07  9:13                     ` Jean-Philippe Brucker
2019-11-07  6:02                 ` Saravana Kannan
2019-11-01 11:41           ` Jean-Philippe Brucker
2019-11-01 12:28             ` Lorenzo Pieralisi
2019-11-01 21:26               ` Saravana Kannan
2019-11-04 11:43                 ` Lorenzo Pieralisi
2019-11-07  5:55                   ` Saravana Kannan
2019-11-01 17:21         ` Will Deacon
2019-11-04  7:54           ` Jean-Philippe Brucker
2019-11-07  6:16       ` Saravana Kannan

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