diff options
author | Dave Airlie <airlied@redhat.com> | 2018-04-30 09:32:34 +1000 |
---|---|---|
committer | Dave Airlie <airlied@redhat.com> | 2018-04-30 09:32:43 +1000 |
commit | 0ab390262c4920f26f8202063a268d5fc829728e (patch) | |
tree | 98dd912196273ce02c1a1ab5d5f504bb89bbeec7 /drivers/gpu/drm/drm_atomic.c | |
parent | 6da6c0db5316275015e8cc2959f12a17584aeb64 (diff) | |
parent | 741c3aeb82c78e173aa7155aaffb971e5c73ab3c (diff) |
Merge tag 'drm-misc-next-2018-04-26' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for v4.18:
UAPI Changes:
- Add support for a generic plane alpha property to sun4i, rcar-du and atmel-hclcdc. (Maxime)
Core Changes:
- Stop looking at legacy plane->fb and crtc members in atomic drivers. (Ville)
- mode_valid return type fixes. (Luc)
- Handle zpos normalization in the core. (Peter)
Driver Changes:
- Implement CTM, plane alpha and generic async cursor support in vc4. (Stefan)
- Various fixes for HPD and aux chan in drm_bridge/analogix_dp. (Lin, Zain, Douglas)
- Add support for MIPI DSI to sun4i. (Maxime)
Signed-off-by: Dave Airlie <airlied@redhat.com>
# gpg: Signature made Thu 26 Apr 2018 08:21:01 PM AEST
# gpg: using RSA key FE558C72A67013C3
# gpg: Can't check signature: public key not found
Link: https://patchwork.freedesktop.org/patch/msgid/b33da7eb-efc9-ae6f-6f69-b7acd6df6797@mblankhorst.nl
Diffstat (limited to 'drivers/gpu/drm/drm_atomic.c')
-rw-r--r-- | drivers/gpu/drm/drm_atomic.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 7d25c42f22db..9bdd67781917 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -783,6 +783,8 @@ static int drm_atomic_plane_set_property(struct drm_plane *plane, state->src_w = val; } else if (property == config->prop_src_h) { state->src_h = val; + } else if (property == plane->alpha_property) { + state->alpha = val; } else if (property == plane->rotation_property) { if (!is_power_of_2(val & DRM_MODE_ROTATE_MASK)) return -EINVAL; @@ -848,6 +850,8 @@ drm_atomic_plane_get_property(struct drm_plane *plane, *val = state->src_w; } else if (property == config->prop_src_h) { *val = state->src_h; + } else if (property == plane->alpha_property) { + *val = state->alpha; } else if (property == plane->rotation_property) { *val = state->rotation; } else if (property == plane->zpos_property) { @@ -1492,6 +1496,14 @@ EXPORT_SYMBOL(drm_atomic_set_fb_for_plane); * Otherwise, if &drm_plane_state.fence is not set this function we just set it * with the received implicit fence. In both cases this function consumes a * reference for @fence. + * + * This way explicit fencing can be used to overrule implicit fencing, which is + * important to make explicit fencing use-cases work: One example is using one + * buffer for 2 screens with different refresh rates. Implicit fencing will + * clamp rendering to the refresh rate of the slower screen, whereas explicit + * fence allows 2 independent render and display loops on a single buffer. If a + * driver allows obeys both implicit and explicit fences for plane updates, then + * it will break all the benefits of explicit fencing. */ void drm_atomic_set_fence_for_plane(struct drm_plane_state *plane_state, |