From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Fix skl_update_scaler_crtc() to deal with different scaling
modes correctly. The current implementation assumes
DRM_MODE_SCALE_FULLSCREEN. Fortunately we don't expose any
border properties currently so the code does actually end
up doing the right thing (assigning a scaler for pfit).
The code does need to be fixed before any borders are
exposed.
Also we have redundant calls to skl_update_scaler_crtc() in
dp/hdmi .compute_config() which can be nuked. They were anyway
called before we had even computed the pfit state so were
basically nonsense. The real call we need to keep is in
intel_crtc_atomic_check().
v2: Deal witrh skl_update_scaler_crtc() in intel_dp_ycbcr420_config()
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_display.c | 38 ++++++++++----------
drivers/gpu/drm/i915/display/intel_display.h | 1 -
drivers/gpu/drm/i915/display/intel_dp.c | 15 --------
drivers/gpu/drm/i915/display/intel_hdmi.c | 6 ----
4 files changed, 19 insertions(+), 41 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 84d8a4e2ec24..1403e9aad057 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -5479,28 +5479,28 @@ skl_update_scaler(struct intel_crtc_state *crtc_state, bool force_detach,
return 0;
}
-/**
- * skl_update_scaler_crtc - Stages update to scaler state for a given crtc.
- *
- * @state: crtc's scaler state
- *
- * Return
- * 0 - scaler_usage updated successfully
- * error - requested scaling cannot be supported or other error condition
- */
-int skl_update_scaler_crtc(struct intel_crtc_state *state)
+static int skl_update_scaler_crtc(struct intel_crtc_state *crtc_state)
{
- const struct drm_display_mode *adjusted_mode = &state->base.adjusted_mode;
- bool need_scaler = false;
+ const struct drm_display_mode *adjusted_mode =
+ &crtc_state->base.adjusted_mode;
+ int width, height;
- if (state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420)
- need_scaler = true;
+ if (crtc_state->pch_pfit.enabled) {
+ u32 pfit_size = crtc_state->pch_pfit.size;
+
+ width = pfit_size >> 16;
+ height = pfit_size & 0xffff;
+ } else {
+ width = adjusted_mode->crtc_hdisplay;
+ height = adjusted_mode->crtc_vdisplay;
+ }
- return skl_update_scaler(state, !state->base.active, SKL_CRTC_INDEX,
- &state->scaler_state.scaler_id,
- state->pipe_src_w, state->pipe_src_h,
- adjusted_mode->crtc_hdisplay,
- adjusted_mode->crtc_vdisplay, NULL, need_scaler);
+ return skl_update_scaler(crtc_state, !crtc_state->base.active,
+ SKL_CRTC_INDEX,
+ &crtc_state->scaler_state.scaler_id,
+ crtc_state->pipe_src_w, crtc_state->pipe_src_h,
+ width, height, NULL,
+ crtc_state->pch_pfit.enabled);
}
/**
diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index 33fd523c4622..ecebe567c647 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -546,7 +546,6 @@ void intel_crtc_arm_fifo_underrun(struct intel_crtc *crtc,
struct intel_crtc_state *crtc_state);
u16 skl_scaler_calc_phase(int sub, int scale, bool chroma_center);
-int skl_update_scaler_crtc(struct intel_crtc_state *crtc_state);
int skl_max_scale(const struct intel_crtc_state *crtc_state,
u32 pixel_format);
u32 glk_plane_color_ctl(const struct intel_crtc_state *crtc_state,
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 5673ed75e428..d333f87d5b39 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -2121,7 +2121,6 @@ intel_dp_ycbcr420_config(struct intel_dp *intel_dp,
const struct drm_display_mode *adjusted_mode =
&crtc_state->base.adjusted_mode;
struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
- int ret;
if (!drm_mode_is_420_only(info, adjusted_mode) ||
!intel_dp_get_colorimetry_status(intel_dp) ||
@@ -2130,13 +2129,6 @@ intel_dp_ycbcr420_config(struct intel_dp *intel_dp,
crtc_state->output_format = INTEL_OUTPUT_FORMAT_YCBCR420;
- /* YCBCR 420 output conversion needs a scaler */
- ret = skl_update_scaler_crtc(crtc_state);
- if (ret) {
- DRM_DEBUG_KMS("Scaler allocation for output failed\n");
- return ret;
- }
-
intel_pch_panel_fitting(crtc, crtc_state, DRM_MODE_SCALE_FULLSCREEN);
return 0;
@@ -2192,7 +2184,6 @@ intel_dp_compute_config(struct intel_encoder *encoder,
else
ret = intel_dp_ycbcr420_config(intel_dp, &intel_connector->base,
pipe_config);
-
if (ret)
return ret;
@@ -2208,12 +2199,6 @@ intel_dp_compute_config(struct intel_encoder *encoder,
intel_fixed_panel_mode(intel_connector->panel.fixed_mode,
adjusted_mode);
- if (INTEL_GEN(dev_priv) >= 9) {
- ret = skl_update_scaler_crtc(pipe_config);
- if (ret)
- return ret;
- }
-
if (HAS_GMCH(dev_priv))
intel_gmch_panel_fitting(intel_crtc, pipe_config,
conn_state->scaling_mode);
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index c500fc9154c8..4039c2216ae0 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -2276,12 +2276,6 @@ intel_hdmi_ycbcr420_config(struct drm_connector *connector,
config->output_format = INTEL_OUTPUT_FORMAT_YCBCR420;
- /* YCBCR 420 output conversion needs a scaler */
- if (skl_update_scaler_crtc(config)) {
- DRM_DEBUG_KMS("Scaler allocation for output failed\n");
- return false;
- }
-
intel_pch_panel_fitting(intel_crtc, config,
DRM_MODE_SCALE_FULLSCREEN);
--
2.21.0
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