Initializing scalers with supported values during crtc init.
v2:
-initialize single copy of min/max values (Matt)
Signed-off-by: Chandra Konduru <chandra.konduru@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_display.c | 53 ++++++++++++++++++++++++++++++++++
1 file changed, 53 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 89299b6..e6ea9e0 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -103,6 +103,8 @@ static void chv_prepare_pll(struct intel_crtc *crtc,
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, int pipe,
+ struct intel_crtc_state *crtc_state);
static struct intel_encoder *intel_find_encoder(struct intel_connector *connector, int pipe)
{
@@ -12750,6 +12752,54 @@ static struct drm_plane *intel_cursor_plane_create(struct drm_device *dev,
return &cursor->base;
}
+static void skl_init_scalers(struct drm_device *dev, int pipe,
+ struct intel_crtc_state *crtc_state)
+{
+ int i;
+ struct intel_scaler *intel_scaler;
+ struct intel_crtc_scaler_state *scaler_state = &crtc_state->scaler_state;
+ if (INTEL_INFO(dev)->gen < 9)
+ return;
+
+ scaler_state->num_scalers = SKL_NUM_SCALERS;
+ for (i = 0; i < SKL_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;
+ intel_scaler->filter = PS_FILTER_MEDIUM;
+ }
+
+ /* down scaling ratio: 2.99 --> 1, i.e., 34% of original */
+ scaler_state->min_hsr = 34;
+ scaler_state->min_vsr = 34;
+ scaler_state->max_hsr = 500;
+ scaler_state->max_vsr = 500;
+
+ /* down scaling ratio: 2.99x2.99 --> 1x1, i.e., 12% of original */
+ scaler_state->min_hvsr = 12;
+ scaler_state->max_hvsr = 2500;
+
+ /* src_w & dst_w range 8 - 4096 */
+ scaler_state->min_src_w = 8;
+ scaler_state->max_src_w = 4096;
+ scaler_state->min_dst_w = 8;
+ scaler_state->max_dst_w = 4096;
+
+ /* src_h & dst_h range 8 - 2304 */
+ scaler_state->min_src_h = 8;
+ scaler_state->max_src_h = 2304;
+ scaler_state->min_dst_h = 8;
+ scaler_state->max_dst_h = 2304;
+
+ /* pipe C has one scaler */
+ if (pipe == PIPE_C) {
+ scaler_state->num_scalers = 1;
+ }
+ 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;
@@ -12769,6 +12819,9 @@ static void intel_crtc_init(struct drm_device *dev, int pipe)
intel_crtc_set_state(intel_crtc, crtc_state);
crtc_state->base.crtc = &intel_crtc->base;
+ /* initialize shared scalers */
+ skl_init_scalers(dev, pipe, crtc_state);
+
primary = intel_primary_plane_create(dev, pipe);
if (!primary)
goto fail;
--
1.7.9.5
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