drm/i915: Add a simple atomic crtc check function, v2.
Move the check for encoder cloning here.
Changes since v1:
- Remove was/is crtc_disabled. (mattrope)
- Rename function to intel_crtc_atomic_check. (mattrope)
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Tested-by(IVB): Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index df301cd..df13769 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -11673,11 +11673,82 @@
return ret;
}
+static bool encoders_cloneable(const struct intel_encoder *a,
+ const struct intel_encoder *b)
+{
+ /* masks could be asymmetric, so check both ways */
+ return a == b || (a->cloneable & (1 << b->type) &&
+ b->cloneable & (1 << a->type));
+}
+
+static bool check_single_encoder_cloning(struct drm_atomic_state *state,
+ struct intel_crtc *crtc,
+ struct intel_encoder *encoder)
+{
+ struct intel_encoder *source_encoder;
+ struct drm_connector *connector;
+ struct drm_connector_state *connector_state;
+ int i;
+
+ for_each_connector_in_state(state, connector, connector_state, i) {
+ if (connector_state->crtc != &crtc->base)
+ continue;
+
+ source_encoder =
+ to_intel_encoder(connector_state->best_encoder);
+ if (!encoders_cloneable(encoder, source_encoder))
+ return false;
+ }
+
+ return true;
+}
+
+static bool check_encoder_cloning(struct drm_atomic_state *state,
+ struct intel_crtc *crtc)
+{
+ struct intel_encoder *encoder;
+ struct drm_connector *connector;
+ struct drm_connector_state *connector_state;
+ int i;
+
+ for_each_connector_in_state(state, connector, connector_state, i) {
+ if (connector_state->crtc != &crtc->base)
+ continue;
+
+ encoder = to_intel_encoder(connector_state->best_encoder);
+ if (!check_single_encoder_cloning(state, crtc, encoder))
+ return false;
+ }
+
+ return true;
+}
+
+static int intel_crtc_atomic_check(struct drm_crtc *crtc,
+ struct drm_crtc_state *crtc_state)
+{
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ struct drm_atomic_state *state = crtc_state->state;
+ int idx = crtc->base.id;
+ bool mode_changed = needs_modeset(crtc_state);
+
+ if (mode_changed && !check_encoder_cloning(state, intel_crtc)) {
+ DRM_DEBUG_KMS("rejecting invalid cloning configuration\n");
+ return -EINVAL;
+ }
+
+ I915_STATE_WARN(crtc->state->active != intel_crtc->active,
+ "[CRTC:%i] mismatch between state->active(%i) and crtc->active(%i)\n",
+ idx, crtc->state->active, intel_crtc->active);
+
+ return 0;
+}
+
static const struct drm_crtc_helper_funcs intel_helper_funcs = {
.mode_set_base_atomic = intel_pipe_set_base_atomic,
.load_lut = intel_crtc_load_lut,
.atomic_begin = intel_begin_crtc_commit,
.atomic_flush = intel_finish_crtc_commit,
+ .atomic_check = intel_crtc_atomic_check,
};
/**
@@ -11930,56 +12001,6 @@
}
}
-static bool encoders_cloneable(const struct intel_encoder *a,
- const struct intel_encoder *b)
-{
- /* masks could be asymmetric, so check both ways */
- return a == b || (a->cloneable & (1 << b->type) &&
- b->cloneable & (1 << a->type));
-}
-
-static bool check_single_encoder_cloning(struct drm_atomic_state *state,
- struct intel_crtc *crtc,
- struct intel_encoder *encoder)
-{
- struct intel_encoder *source_encoder;
- struct drm_connector *connector;
- struct drm_connector_state *connector_state;
- int i;
-
- for_each_connector_in_state(state, connector, connector_state, i) {
- if (connector_state->crtc != &crtc->base)
- continue;
-
- source_encoder =
- to_intel_encoder(connector_state->best_encoder);
- if (!encoders_cloneable(encoder, source_encoder))
- return false;
- }
-
- return true;
-}
-
-static bool check_encoder_cloning(struct drm_atomic_state *state,
- struct intel_crtc *crtc)
-{
- struct intel_encoder *encoder;
- struct drm_connector *connector;
- struct drm_connector_state *connector_state;
- int i;
-
- for_each_connector_in_state(state, connector, connector_state, i) {
- if (connector_state->crtc != &crtc->base)
- continue;
-
- encoder = to_intel_encoder(connector_state->best_encoder);
- if (!check_single_encoder_cloning(state, crtc, encoder))
- return false;
- }
-
- return true;
-}
-
static bool check_digital_port_conflicts(struct drm_atomic_state *state)
{
struct drm_device *dev = state->dev;
@@ -12066,11 +12087,6 @@
int i;
bool retry = true;
- if (!check_encoder_cloning(state, to_intel_crtc(crtc))) {
- DRM_DEBUG_KMS("rejecting invalid cloning configuration\n");
- return -EINVAL;
- }
-
clear_intel_crtc_state(pipe_config);
pipe_config->cpu_transcoder =