diff options
| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2013-06-26 01:38:19 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-07-01 19:38:18 +0200 |
| commit | 319d9827ebb55d58d1b02d8a4eba48bbb2702376 (patch) | |
| tree | c4ff17f265f0619ed03dc6bbf054b18271aab9ec /drivers | |
| parent | 4d6a3e63bce0cb604864e36585ca8983160a421a (diff) | |
drm/i915: flip on a no fb -> fb transition if crtc is active v3
If the crtc is active, we can simply flip a new fb onto it, provided the
other mode setting reqs are met. Otherwise, we'll need to do a full
mode set to re-enable the crtc.
v2: check for crtc active and set mode_changed accordingly
v3: add module parameter, i915.fastboot, to control no fb -> fb flip behavior
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 6c0014d84812..2ab34e57ba4a 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8676,8 +8676,16 @@ intel_set_config_compute_mode_changes(struct drm_mode_set *set, } else if (set->crtc->fb != set->fb) { /* If we have no fb then treat it as a full mode set */ if (set->crtc->fb == NULL) { - DRM_DEBUG_KMS("crtc has no fb, full mode set\n"); - config->mode_changed = true; + struct intel_crtc *intel_crtc = + to_intel_crtc(set->crtc); + + if (intel_crtc->active && i915_fastboot) { + DRM_DEBUG_KMS("crtc has no fb, will flip\n"); + config->fb_changed = true; + } else { + DRM_DEBUG_KMS("inactive crtc, full mode set\n"); + config->mode_changed = true; + } } else if (set->fb == NULL) { config->mode_changed = true; } else if (set->fb->pixel_format != |