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Commit e36d88aa authored by Shiraz Hashim's avatar Shiraz Hashim
Browse files

iommu: msm: add iommu->dma_supported hook 



iommu->dma_supported checks if the device can
support DMA to the memory described by the mask.
Add this for the legacy msm iommu driver.

Change-Id: Iebddc78cf1206bfed30c5d4e0f2ec01d012072e3
Signed-off-by: default avatarShiraz Hashim <shashim@codeaurora.org>
parent 0dfa7fd5

drivers/iommu/msm_iommu-v1.c

+7 −0
Original line number Diff line number Diff line
@@ -1548,6 +1548,12 @@ static int msm_iommu_domain_get_attr(struct iommu_domain *domain, 
	return 0;

}



static int msm_iommu_dma_supported(struct iommu_domain *domain,

				  struct device *dev, u64 mask)

{

	return ((1ULL << 32) - 1) < mask ? 0 : 1;

}



static struct iommu_ops msm_iommu_ops = {

	.domain_init = msm_iommu_domain_init,

	.domain_destroy = msm_iommu_domain_destroy,
@@ -1563,6 +1569,7 @@ static struct iommu_ops msm_iommu_ops = { 
	.pgsize_bitmap = MSM_IOMMU_PGSIZES,

	.domain_set_attr = msm_iommu_domain_set_attr,

	.domain_get_attr = msm_iommu_domain_get_attr,

	.dma_supported = msm_iommu_dma_supported,

};



static int __init msm_iommu_init(void)

drivers/iommu/msm_iommu_sec.c

+6 −0
Original line number Diff line number Diff line
@@ -1003,6 +1003,11 @@ int is_vfe_secure(void) 
	return secure_camera_enabled;

}



static int msm_iommu_dma_supported(struct iommu_domain *domain,

				  struct device *dev, u64 mask)

{

	return ((1ULL << 32) - 1) < mask ? 0 : 1;

}



static struct iommu_ops msm_iommu_ops = {

	.domain_init = msm_iommu_domain_init,
@@ -1017,6 +1022,7 @@ static struct iommu_ops msm_iommu_ops = { 
	.iova_to_phys = msm_iommu_iova_to_phys,

	.capable = msm_iommu_capable,

	.pgsize_bitmap = MSM_IOMMU_PGSIZES,

	.dma_supported = msm_iommu_dma_supported,

};



static int __init msm_iommu_sec_init(void)