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Commit 4ed50bcf authored by Hamad Kadmany's avatar Hamad Kadmany
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msm_11ad: Set atomic attribute to SMMU driver 



Set DOMAIN_ATTR_ATOMIC attribute to SMMU driver so that
it can handle DMA map/unmap operations from atomic context
which is required by 11ad driver

Change-Id: I7e538e6c41e5f40ff01dcfc9cbecf860ded22057
Signed-off-by: default avatarHamad Kadmany <hkadmany@codeaurora.org>
parent 2048a632

drivers/platform/msm/msm_11ad/msm_11ad.c

+10 −0
Original line number Diff line number Diff line
@@ -126,6 +126,7 @@ static int ops_resume(void *handle) 
static int msm_11ad_smmu_init(struct msm11ad_ctx *ctx)

{

	int disable_htw = 1;

	int atomic_ctx = 1;

	int rc;



	if (!ctx->use_smmu)
@@ -151,6 +152,15 @@ static int msm_11ad_smmu_init(struct msm11ad_ctx *ctx) 
			rc);

	}



	rc = iommu_domain_set_attr(ctx->mapping->domain,

				   DOMAIN_ATTR_ATOMIC,

				   &atomic_ctx);

	if (rc) {

		dev_err(ctx->dev, "Set atomic attribute to SMMU failed (%d)\n",

			rc);

		goto release_mapping;

	}



	rc = arm_iommu_attach_device(&ctx->pcidev->dev, ctx->mapping);

	if (rc) {

		dev_err(ctx->dev, "arm_iommu_attach_device failed (%d)\n", rc);