[PATCH v4 4/5] drm/nouveau/kms: Only allow enabling atomic modesetting on nv50+
Lyude Paul <[email protected]>
| Newsgroups | org.freedesktop.lists.dri-devel,org.freedesktop.lists.nouveau,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
Atomic modesetting support was never added for pre-nv50 chipsets, so make sure we don't allow it to be forced on. Additionally, print a small warning when it's not supported. Signed-off-by: Lyude Paul <[email protected]> --- V2: * Check against info.family, not info.chipset drivers/gpu/drm/nouveau/nouveau_drm.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index 9cd12ebc7e449..bfe9d6fe450a5 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -769,8 +769,12 @@ nouveau_drm_device_new(struct device *parent, struct nvkm_device *device) goto done; } - if (nouveau_atomic) - drm->drm_driver.driver_features |= DRIVER_ATOMIC; + if (nouveau_atomic) { + if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) + drm->drm_driver.driver_features |= DRIVER_ATOMIC; + else + NV_WARN(drm, "Atomic modesetting not supported (needs nv50+)\n"); + } ret = nvif_device_map(&drm->device); if (ret) { -- 2.55.0