drm/i915: Initialize skylake scalers
Initializing scalers with supported values during crtc init.
v2:
-initialize single copy of min/max values (Matt)
v3:
-moved gen check to callsite (Matt)
v4:
-squashed planes begin with no scaler to here (me)
v5:
-updated init function with updated scaler state structure (Matt)
Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
Reviewed-by: 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 d98d5f2..402fad0 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -103,6 +103,8 @@
const struct intel_crtc_state *pipe_config);
static void intel_begin_crtc_commit(struct drm_crtc *crtc);
static void intel_finish_crtc_commit(struct drm_crtc *crtc);
+static void skl_init_scalers(struct drm_device *dev, struct intel_crtc *intel_crtc,
+ struct intel_crtc_state *crtc_state);
static struct intel_encoder *intel_find_encoder(struct intel_connector *connector, int pipe)
{
@@ -12862,6 +12864,7 @@
primary->can_scale = false;
primary->max_downscale = 1;
+ state->scaler_id = -1;
primary->pipe = pipe;
primary->plane = pipe;
primary->check_plane = intel_check_primary_plane;
@@ -13026,6 +13029,7 @@
cursor->max_downscale = 1;
cursor->pipe = pipe;
cursor->plane = pipe;
+ state->scaler_id = -1;
cursor->check_plane = intel_check_cursor_plane;
cursor->commit_plane = intel_commit_cursor_plane;
@@ -13052,6 +13056,24 @@
return &cursor->base;
}
+static void skl_init_scalers(struct drm_device *dev, struct intel_crtc *intel_crtc,
+ struct intel_crtc_state *crtc_state)
+{
+ int i;
+ struct intel_scaler *intel_scaler;
+ struct intel_crtc_scaler_state *scaler_state = &crtc_state->scaler_state;
+
+ for (i = 0; i < intel_crtc->num_scalers; i++) {
+ intel_scaler = &scaler_state->scalers[i];
+ intel_scaler->in_use = 0;
+ intel_scaler->id = i;
+
+ intel_scaler->mode = PS_SCALER_MODE_DYN;
+ }
+
+ scaler_state->scaler_id = -1;
+}
+
static void intel_crtc_init(struct drm_device *dev, int pipe)
{
struct drm_i915_private *dev_priv = dev->dev_private;
@@ -13071,6 +13093,16 @@
intel_crtc_set_state(intel_crtc, crtc_state);
crtc_state->base.crtc = &intel_crtc->base;
+ /* initialize shared scalers */
+ if (INTEL_INFO(dev)->gen >= 9) {
+ if (pipe == PIPE_C)
+ intel_crtc->num_scalers = 1;
+ else
+ intel_crtc->num_scalers = SKL_NUM_SCALERS;
+
+ skl_init_scalers(dev, intel_crtc, crtc_state);
+ }
+
primary = intel_primary_plane_create(dev, pipe);
if (!primary)
goto fail;