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arm64: dma-mapping: remove order parameter from arm_iommu_create_mapping()

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arm32 recently removed the `order' parameter from
arm_iommu_create_mapping: (68efd7d2fb: arm: dma-mapping: remove order
parameter from arm_iommu_create_mapping()) in order to make the API
easier to understand.  The arm32 DMA IOMMU mapper has dynamic resizing
of the iova bitmap, so there was no reason to keep the `order' parameter
around (which was introduced to reduce the size of the bitmap).

Although we don't have dynamic iova bitmap reallocation on arm64, we'd
still like to get rid of the `order' parameter since it's confusing and
doesn't really help much (especially since all known clients on our
system are passing order=0).  Remove it.

Change-Id: I35e32fdfbe05ec434f64a3a316d13c8f43304bc6
Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
[cip@codeaurora.org: Removed changes unrelated to display]
Signed-off-by: Clarence Ip <cip@codeaurora.org>
This commit is contained in:
Mitchel Humpherys 2015-06-30 16:12:38 -07:00 • committed by David Keitel
parent 9ebcc0e450
commit c2d9466e08
1 changed files with 2 additions and 2 deletions
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4
drivers/video/fbdev/msm/mdss_smmu.c
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@ -497,7 +497,7 @@ int mdss_smmu_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct mdss_data_type *mdata = mdss_mdp_get_mdata();
struct mdss_smmu_client *mdss_smmu;
int order = 0, rc = 0;
int rc = 0;
u32 domain;
size_t va_start, va_size;
const struct of_device_id *match;
@ -575,7 +575,7 @@ int mdss_smmu_probe(struct platform_device *pdev)
}
mdss_smmu->mmu_mapping = arm_iommu_create_mapping(
&platform_bus_type, va_start, va_size, order);
&platform_bus_type, va_start, va_size);
if (IS_ERR(mdss_smmu->mmu_mapping)) {
pr_err("iommu create mapping failed for domain[%d]\n", domain);
rc = PTR_ERR(mdss_smmu->mmu_mapping);