From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Add an optional secondary encoder state compute hook. This gets
called after the normak .compute_config() has been called for
all the encoders in the state. Thus in the new hook we can rely
on all derived state populated by .compute_config() to be already
set up. Should be useful for MST and port sync master/slave
transcoder selection.
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_display.c | 39 +++++++++++++++++++
.../drm/i915/display/intel_display_types.h | 3 ++
2 files changed, 42 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index b0af37fb6d4a..2a2c9dd563e5 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -13522,6 +13522,35 @@ intel_modeset_pipe_config(struct intel_crtc_state *pipe_config)
return 0;
}
+static int
+intel_modeset_pipe_config_late(struct intel_crtc_state *crtc_state)
+{
+ struct intel_atomic_state *state =
+ to_intel_atomic_state(crtc_state->uapi.state);
+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+ struct drm_connector_state *conn_state;
+ struct drm_connector *connector;
+ int i;
+
+ for_each_new_connector_in_state(&state->base, connector,
+ conn_state, i) {
+ struct intel_encoder *encoder =
+ to_intel_encoder(conn_state->best_encoder);
+ int ret;
+
+ if (conn_state->crtc != &crtc->base ||
+ !encoder->compute_config_late)
+ continue;
+
+ ret = encoder->compute_config_late(encoder, crtc_state,
+ conn_state);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
bool intel_fuzzy_clock_check(int clock1, int clock2)
{
int diff;
@@ -14929,6 +14958,16 @@ static int intel_atomic_check(struct drm_device *dev,
ret = intel_modeset_pipe_config(new_crtc_state);
if (ret)
goto fail;
+ }
+
+ for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
+ new_crtc_state, i) {
+ if (!needs_modeset(new_crtc_state))
+ continue;
+
+ ret = intel_modeset_pipe_config_late(new_crtc_state);
+ if (ret)
+ goto fail;
intel_crtc_check_fastset(old_crtc_state, new_crtc_state);
}
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 7c6133a9c51b..96d84d027556 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -141,6 +141,9 @@ struct intel_encoder {
int (*compute_config)(struct intel_encoder *,
struct intel_crtc_state *,
struct drm_connector_state *);
+ int (*compute_config_late)(struct intel_encoder *,
+ struct intel_crtc_state *,
+ struct drm_connector_state *);
void (*update_prepare)(struct intel_atomic_state *,
struct intel_encoder *,
struct intel_crtc *);
--
2.19.1
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