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Commit c33ce85b authored by Mitchel Humpherys's avatar Mitchel Humpherys Committed by Matt Wagantall
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ipa: set atomic IOMMU domain attr 



IPA performs some map/unmap operations from atomic context.  This only
works if the atomic domain attribute is set.  Set it.

Change-Id: I9045850f22fa4a4faa1a0710482bc476efb5e5b8
Signed-off-by: default avatarMitchel Humpherys <mitchelh@codeaurora.org>
parent b5eb7138

drivers/platform/msm/ipa/ipa.c

+9 −0
Original line number Diff line number Diff line
@@ -3814,6 +3814,7 @@ static int ipa_smmu_ap_cb_probe(struct device *dev) 
	int order = 0;

	int result;

	int disable_htw = 1;

	int atomic_ctx = 1;



	IPADBG("sub pdev=%p\n", dev);
@@ -3848,6 +3849,14 @@ static int ipa_smmu_ap_cb_probe(struct device *dev) 
		}

	}



	if (iommu_domain_set_attr(cb->mapping->domain,

				  DOMAIN_ATTR_ATOMIC,

				  &atomic_ctx)) {

		IPAERR("couldn't set domain as atomic\n");

		arm_iommu_detach_device(cb->dev);

		return -EIO;

	}



	cb->valid = true;

	smmu_present = true;