return -ENOMEM;
if (iommu_present(&platform_bus_type)) {
+ struct iommu_domain_geometry *geometry;
+ u64 start, end;
+
tegra->domain = iommu_domain_alloc(&platform_bus_type);
if (!tegra->domain) {
err = -ENOMEM;
goto free;
}
- DRM_DEBUG("IOMMU context initialized\n");
- drm_mm_init(&tegra->mm, 0, SZ_2G);
+ geometry = &tegra->domain->geometry;
+ start = geometry->aperture_start;
+ end = geometry->aperture_end;
+
+ DRM_DEBUG("IOMMU context initialized (aperture: %#llx-%#llx)\n",
+ start, end);
+ drm_mm_init(&tegra->mm, start, end - start + 1);
}
mutex_init(&tegra->clients_lock);
drm->irq_enabled = true;
/* syncpoints are used for full 32-bit hardware VBLANK counters */
- drm->vblank_disable_immediate = true;
drm->max_vblank_count = 0xffffffff;
err = drm_vblank_init(drm, drm->mode_config.num_crtc);