diff options
| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-09-08 01:01:14 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-09-08 01:01:14 -0300 |
| commit | e5fd91f1ef340da553f7a79da9540c3db711c937 (patch) | |
| tree | b11842027dc6641da63f4bcc524f8678263304a3 /drivers/gpu/drm/tegra/drm.c | |
| parent | 2a9b0348e685a63d97486f6749622b61e9e3292f (diff) | |
Linux-libre 4.2-gnu
Diffstat (limited to 'drivers/gpu/drm/tegra/drm.c')
| -rw-r--r-- | drivers/gpu/drm/tegra/drm.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c index bfad15a91..427f50c68 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); |