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author | Dave Airlie <airlied@redhat.com> | 2015-01-28 09:27:29 +1000 |
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committer | Dave Airlie <airlied@redhat.com> | 2015-01-28 09:27:29 +1000 |
commit | 2f5b4ef15c60bc5292a3f006c018acb3da53737b (patch) | |
tree | 7adcd9b8aa631ad4ec4c9b700beb21a22b33743c /include/drm | |
parent | 1da30627fc511a57c9bd23a02c97f0576379f761 (diff) | |
parent | 31f40f86526b71009973854c1dfe799ee70f7588 (diff) | |
download | op-kernel-dev-2f5b4ef15c60bc5292a3f006c018acb3da53737b.zip op-kernel-dev-2f5b4ef15c60bc5292a3f006c018acb3da53737b.tar.gz |
Merge tag 'drm/tegra/for-3.20-rc1' of git://anongit.freedesktop.org/tegra/linux into drm-next
drm/tegra: Changes for v3.20-rc1
The biggest part of these changes is the conversion to atomic mode-
setting. A lot of cleanup and demidlayering was required before the
conversion, with the result being a whole lot of changes.
Besides the atomic mode-setting support, the host1x bus now has the
proper infrastructure to support suspend/resume for child devices.
Finally, a couple of smaller cleanup patches round things off.
* tag 'drm/tegra/for-3.20-rc1' of git://anongit.freedesktop.org/tegra/linux: (54 commits)
drm/tegra: Use correct relocation target offsets
drm/tegra: Add minimal power management
drm/tegra: dc: Unify enabling the display controller
drm/tegra: Track tiling and format in plane state
drm/tegra: Track active planes in CRTC state
drm/tegra: Remove unused ->mode_fixup() callbacks
drm/tegra: Atomic conversion, phase 3, step 3
drm/tegra: Atomic conversion, phase 3, step 2
drm/tegra: dc: Use atomic clock state in modeset
drm/tegra: sor: Implement ->atomic_check()
drm/tegra: hdmi: Implement ->atomic_check()
drm/tegra: dsi: Implement ->atomic_check()
drm/tegra: rgb: Implement ->atomic_check()
drm/tegra: dc: Store clock setup in atomic state
drm/tegra: Atomic conversion, phase 3, step 1
drm/tegra: Atomic conversion, phase 2
drm/tegra: Atomic conversion, phase 1
drm/tegra: dc: Do not needlessly deassert reset
drm/tegra: Output cleanup functions cannot fail
drm/tegra: Remove remnants of the output midlayer
...
Diffstat (limited to 'include/drm')
-rw-r--r-- | include/drm/drm_atomic_helper.h | 37 | ||||
-rw-r--r-- | include/drm/drm_crtc_helper.h | 6 | ||||
-rw-r--r-- | include/drm/drm_plane_helper.h | 5 |
3 files changed, 47 insertions, 1 deletions
diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h index 2095917..a0ea4de 100644 --- a/include/drm/drm_atomic_helper.h +++ b/include/drm/drm_atomic_helper.h @@ -127,4 +127,41 @@ void drm_atomic_helper_connector_destroy_state(struct drm_connector *connector, #define drm_atomic_crtc_state_for_each_plane(plane, crtc_state) \ drm_for_each_plane_mask(plane, (crtc_state)->state->dev, (crtc_state)->plane_mask) +/* + * drm_atomic_plane_disabling - check whether a plane is being disabled + * @plane: plane object + * @old_state: previous atomic state + * + * Checks the atomic state of a plane to determine whether it's being disabled + * or not. This also WARNs if it detects an invalid state (both CRTC and FB + * need to either both be NULL or both be non-NULL). + * + * RETURNS: + * True if the plane is being disabled, false otherwise. + */ +static inline bool +drm_atomic_plane_disabling(struct drm_plane *plane, + struct drm_plane_state *old_state) +{ + /* + * When disabling a plane, CRTC and FB should always be NULL together. + * Anything else should be considered a bug in the atomic core, so we + * gently warn about it. + */ + WARN_ON((plane->state->crtc == NULL && plane->state->fb != NULL) || + (plane->state->crtc != NULL && plane->state->fb == NULL)); + + /* + * When using the transitional helpers, old_state may be NULL. If so, + * we know nothing about the current state and have to assume that it + * might be enabled. + * + * When using the atomic helpers, old_state won't be NULL. Therefore + * this check assumes that either the driver will have reconstructed + * the correct state in ->reset() or that the driver will have taken + * appropriate measures to disable all planes. + */ + return (!old_state || old_state->crtc) && !plane->state->crtc; +} + #endif /* DRM_ATOMIC_HELPER_H_ */ diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h index e76828d..5810c02 100644 --- a/include/drm/drm_crtc_helper.h +++ b/include/drm/drm_crtc_helper.h @@ -115,6 +115,7 @@ struct drm_crtc_helper_funcs { * @get_crtc: return CRTC that the encoder is currently attached to * @detect: connection status detection * @disable: disable encoder when not in use (overrides DPMS off) + * @atomic_check: check for validity of an atomic update * * The helper operations are called by the mid-layer CRTC helper. */ @@ -137,6 +138,11 @@ struct drm_encoder_helper_funcs { struct drm_connector *connector); /* disable encoder when not in use - more explicit than dpms off */ void (*disable)(struct drm_encoder *encoder); + + /* atomic helpers */ + int (*atomic_check)(struct drm_encoder *encoder, + struct drm_crtc_state *crtc_state, + struct drm_connector_state *conn_state); }; /** diff --git a/include/drm/drm_plane_helper.h b/include/drm/drm_plane_helper.h index a185392..31c11d3 100644 --- a/include/drm/drm_plane_helper.h +++ b/include/drm/drm_plane_helper.h @@ -52,7 +52,8 @@ extern int drm_crtc_init(struct drm_device *dev, * @prepare_fb: prepare a framebuffer for use by the plane * @cleanup_fb: cleanup a framebuffer when it's no longer used by the plane * @atomic_check: check that a given atomic state is valid and can be applied - * @atomic_update: apply an atomic state to the plane + * @atomic_update: apply an atomic state to the plane (mandatory) + * @atomic_disable: disable the plane * * The helper operations are called by the mid-layer CRTC helper. */ @@ -66,6 +67,8 @@ struct drm_plane_helper_funcs { struct drm_plane_state *state); void (*atomic_update)(struct drm_plane *plane, struct drm_plane_state *old_state); + void (*atomic_disable)(struct drm_plane *plane, + struct drm_plane_state *old_state); }; static inline void drm_plane_helper_add(struct drm_plane *plane, |