search for: firmware_km

Displaying 2 results from an estimated 2 matches for "firmware_km".

Did you mean: firmware_kms
2017 Jun 21
6
Enable vblank_disable_immediate on more drivers.
This patch series sets dev->vblank_disable_immediate = true on radeon/amdgpu-kms, nouveau-kms for nv50+, and vc4 for the real kms driver (as opposed to dispmanx firmware backed kms). All the drivers should be ready in theory, given their implementation, for fast vblank disable/enable. In practice, i have performed timing tests with my measurement equipment for all those drivers with the
2017 Jun 21
0
[PATCH 1/4] drm/vc4: Allow vblank_disable_immediate on non-fw-kms.
...ndex 928d191..70c4e17 100644 --- a/drivers/gpu/drm/vc4/vc4_kms.c +++ b/drivers/gpu/drm/vc4/vc4_kms.c @@ -216,6 +216,10 @@ int vc4_kms_load(struct drm_device *dev) sema_init(&vc4->async_modeset, 1); + /* Set support for vblank irq fast disable, before drm_vblank_init() */ + if (!vc4->firmware_kms) + dev->vblank_disable_immediate = true; + ret = drm_vblank_init(dev, dev->mode_config.num_crtc); if (ret < 0) { dev_err(dev->dev, "failed to initialize vblank\n"); -- 2.7.4