From: José Roberto de Souza <jose.souza@xxxxxxxxx>
MST and port sync have master and slaves pipes and it brings
dependencies between pipes to allow fastset.
For example if only MST master needs a modeset all of its slaves also
needs to do a modeset.
This patch adds the base for external dependencies check, the MST and
port sync bits will be added in another patches.
v3:
- moved handling to intel_atomic_check() this way is guarantee that
all pipes will have its state computed
v4:
- added a function to return if MST master neeeds modeset to simply
code in intel_atomic_check()
v5:
- fixed and moved code to check if MST master needs a modeset
v6:
- previons version of this patch was split into two patches
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Cc: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
Cc: Manasi Navare <manasi.d.navare@xxxxxxxxx>
Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Signed-off-by: José Roberto de Souza <jose.souza@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_display.c | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index a43df7fc1941..cb23e4831d4b 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -13919,6 +13919,11 @@ static void intel_crtc_check_fastset(const struct intel_crtc_state *old_crtc_sta
new_crtc_state->uapi.mode_changed = false;
new_crtc_state->update_pipe = true;
+}
+
+static void intel_crtc_copy_fastset(const struct intel_crtc_state *old_crtc_state,
+ struct intel_crtc_state *new_crtc_state)
+{
/*
* If we're not doing the full modeset we want to
@@ -14094,9 +14099,19 @@ static int intel_atomic_check(struct drm_device *dev,
goto fail;
intel_crtc_check_fastset(old_crtc_state, new_crtc_state);
+ }
- if (needs_modeset(new_crtc_state))
+ for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
+ new_crtc_state, i) {
+ if (needs_modeset(new_crtc_state)) {
any_ms = true;
+ continue;
+ }
+
+ if (!new_crtc_state->update_pipe)
+ continue;
+
+ intel_crtc_copy_fastset(old_crtc_state, new_crtc_state);
}
if (any_ms && !check_digital_port_conflicts(state)) {
--
2.19.1
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