diff options
Diffstat (limited to 'drivers/gpu/drm/tegra/drm.c')
| -rw-r--r-- | drivers/gpu/drm/tegra/drm.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c index 1833abd7d3aa..427f50c6803c 100644 --- a/drivers/gpu/drm/tegra/drm.c +++ b/drivers/gpu/drm/tegra/drm.c @@ -124,14 +124,22 @@ static int tegra_drm_load(struct drm_device *drm, unsigned long flags) 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); @@ -173,7 +181,6 @@ static int tegra_drm_load(struct drm_device *drm, unsigned long flags) 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); |
