/*
* kgsl_get_iommu_ctxt - Get device pointer to IOMMU contexts
* @mmu - Pointer to mmu device
*
* Get the device pointers for the IOMMU user and priv contexts of the
* kgsl device
* Return - 0 on success else error code
*/
static int kgsl_get_iommu_ctxt(struct kgsl_mmu *mmu)
{
struct platform_device *pdev =
container_of(mmu->device->parentdev, struct platform_device,
dev);
struct kgsl_device_platform_data *pdata_dev = pdev->dev.platform_data;
struct kgsl_iommu *iommu = mmu->device->mmu.priv;
int i, ret = 0;
/* Go through the IOMMU data and get all the context devices */
if (KGSL_IOMMU_MAX_UNITS < pdata_dev->iommu_count) {
KGSL_CORE_ERR("Too many IOMMU units defined\n");
ret = -EINVAL;
goto done;
}
for (i = 0; i < pdata_dev->iommu_count; i++) {
ret = _get_iommu_ctxs(mmu, &pdata_dev->iommu_data[i], i);
if (ret)
break;
}
iommu->unit_count = pdata_dev->iommu_count;
done:
return ret;
}
static int kgsl_get_iommu_ctxt(struct kgsl_iommu *iommu,
struct kgsl_device *device)
{
struct platform_device *pdev =
container_of(device->parentdev, struct platform_device, dev);
struct kgsl_device_platform_data *pdata_dev = pdev->dev.platform_data;
int i, ret = 0;
/* Go through the IOMMU data and attach all the domains */
for (i = 0; i < pdata_dev->iommu_count; i++) {
ret = _get_iommu_ctxs(iommu, device,
&pdata_dev->iommu_data[i]);
if (ret)
break;
}
return ret;
}