[Intel-gfx] [PATCH v3 2/5] drm/i915: Move the initial fastset commit check to encoder hooks
Imre Deak
imre.deak at intel.com
Mon Oct 5 21:53:10 UTC 2020
Move the checks to decide whether a fastset is possible during the
initial commit to an encoder hook. This check is really encoder specific
and the next patch will also require this adding a DP encoder specific
check.
v2: Fix negated condition in gen11_dsi_initial_fastset_check().
v3: Make sure to call the hook for all encoders on the crtc. (Ville)
Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
Signed-off-by: Imre Deak <imre.deak at intel.com>
---
drivers/gpu/drm/i915/display/icl_dsi.c | 14 ++++++++++
drivers/gpu/drm/i915/display/intel_ddi.c | 10 +++++++
drivers/gpu/drm/i915/display/intel_display.c | 27 ++++++++-----------
.../drm/i915/display/intel_display_types.h | 8 ++++++
drivers/gpu/drm/i915/display/intel_dp.c | 22 +++++++++++++++
drivers/gpu/drm/i915/display/intel_dp.h | 3 +++
drivers/gpu/drm/i915/display/intel_dp_mst.c | 10 +++++++
7 files changed, 78 insertions(+), 16 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c
index fe946a2e2082..4400e83f783f 100644
--- a/drivers/gpu/drm/i915/display/icl_dsi.c
+++ b/drivers/gpu/drm/i915/display/icl_dsi.c
@@ -1668,6 +1668,19 @@ static bool gen11_dsi_get_hw_state(struct intel_encoder *encoder,
return ret;
}
+static bool gen11_dsi_initial_fastset_check(struct intel_encoder *encoder,
+ struct intel_crtc_state *crtc_state)
+{
+ if (crtc_state->dsc.compression_enable) {
+ drm_dbg_kms(encoder->base.dev, "Forcing full modeset due to DSC being enabled\n");
+ crtc_state->uapi.mode_changed = true;
+
+ return false;
+ }
+
+ return true;
+}
+
static void gen11_dsi_encoder_destroy(struct drm_encoder *encoder)
{
intel_encoder_destroy(encoder);
@@ -1923,6 +1936,7 @@ void icl_dsi_init(struct drm_i915_private *dev_priv)
encoder->update_pipe = intel_panel_update_backlight;
encoder->compute_config = gen11_dsi_compute_config;
encoder->get_hw_state = gen11_dsi_get_hw_state;
+ encoder->initial_fastset_check = gen11_dsi_initial_fastset_check;
encoder->type = INTEL_OUTPUT_DSI;
encoder->cloneable = 0;
encoder->pipe_mask = ~0;
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index b4c520348b3b..4e54c55ec99f 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -4564,6 +4564,15 @@ void intel_ddi_get_config(struct intel_encoder *encoder,
intel_read_dp_sdp(encoder, pipe_config, DP_SDP_VSC);
}
+static bool intel_ddi_initial_fastset_check(struct intel_encoder *encoder,
+ struct intel_crtc_state *crtc_state)
+{
+ if (intel_crtc_has_dp_encoder(crtc_state))
+ return intel_dp_initial_fastset_check(encoder, crtc_state);
+
+ return true;
+}
+
static enum intel_output_type
intel_ddi_compute_output_type(struct intel_encoder *encoder,
struct intel_crtc_state *crtc_state,
@@ -5173,6 +5182,7 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
encoder->update_pipe = intel_ddi_update_pipe;
encoder->get_hw_state = intel_ddi_get_hw_state;
encoder->get_config = intel_ddi_get_config;
+ encoder->initial_fastset_check = intel_ddi_initial_fastset_check;
encoder->suspend = intel_dp_encoder_suspend;
encoder->get_power_domains = intel_ddi_get_power_domains;
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 753f202ef6a0..755b83d47f9c 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -17951,6 +17951,8 @@ static int intel_initial_commit(struct drm_device *dev)
}
if (crtc_state->hw.active) {
+ struct intel_encoder *encoder;
+
/*
* We've not yet detected sink capabilities
* (audio,infoframes,etc.) and thus we don't want to
@@ -17972,22 +17974,15 @@ static int intel_initial_commit(struct drm_device *dev)
*/
crtc_state->uapi.color_mgmt_changed = true;
- /*
- * FIXME hack to force full modeset when DSC is being
- * used.
- *
- * As long as we do not have full state readout and
- * config comparison of crtc_state->dsc, we have no way
- * to ensure reliable fastset. Remove once we have
- * readout for DSC.
- */
- if (crtc_state->dsc.compression_enable) {
- ret = drm_atomic_add_affected_connectors(state,
- &crtc->base);
- if (ret)
- goto out;
- crtc_state->uapi.mode_changed = true;
- drm_dbg_kms(dev, "Force full modeset for DSC\n");
+ for_each_intel_encoder_mask(dev, encoder,
+ crtc_state->uapi.encoder_mask) {
+ if (encoder->initial_fastset_check &&
+ !encoder->initial_fastset_check(encoder, crtc_state)) {
+ ret = drm_atomic_add_affected_connectors(state,
+ &crtc->base);
+ if (ret)
+ goto out;
+ }
}
}
}
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index d5dc18cb8c39..5297b2f08ff9 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -187,6 +187,14 @@ struct intel_encoder {
* be set correctly before calling this function. */
void (*get_config)(struct intel_encoder *,
struct intel_crtc_state *pipe_config);
+
+ /*
+ * Optional hook, returning true if this encoder allows a fastset
+ * during the initial commit, false otherwise.
+ */
+ bool (*initial_fastset_check)(struct intel_encoder *encoder,
+ struct intel_crtc_state *crtc_state);
+
/*
* Acquires the power domains needed for an active encoder during
* hardware state readout.
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 7429597b57be..d33a3d9fdc3a 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -3703,6 +3703,27 @@ static void intel_dp_get_config(struct intel_encoder *encoder,
}
}
+bool intel_dp_initial_fastset_check(struct intel_encoder *encoder,
+ struct intel_crtc_state *crtc_state)
+{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+
+ /*
+ * FIXME hack to force full modeset when DSC is being used.
+ *
+ * As long as we do not have full state readout and config comparison
+ * of crtc_state->dsc, we have no way to ensure reliable fastset.
+ * Remove once we have readout for DSC.
+ */
+ if (crtc_state->dsc.compression_enable) {
+ drm_dbg_kms(&i915->drm, "Forcing full modeset due to DSC being enabled\n");
+ crtc_state->uapi.mode_changed = true;
+ return false;
+ }
+
+ return true;
+}
+
static void intel_disable_dp(struct intel_atomic_state *state,
struct intel_encoder *encoder,
const struct intel_crtc_state *old_crtc_state,
@@ -8057,6 +8078,7 @@ bool intel_dp_init(struct drm_i915_private *dev_priv,
intel_encoder->compute_config = intel_dp_compute_config;
intel_encoder->get_hw_state = intel_dp_get_hw_state;
intel_encoder->get_config = intel_dp_get_config;
+ intel_encoder->initial_fastset_check = intel_dp_initial_fastset_check;
intel_encoder->update_pipe = intel_panel_update_backlight;
intel_encoder->suspend = intel_dp_encoder_suspend;
if (IS_CHERRYVIEW(dev_priv)) {
diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
index 66854aab9887..977585aea3c8 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.h
+++ b/drivers/gpu/drm/i915/display/intel_dp.h
@@ -141,4 +141,7 @@ void intel_ddi_update_pipe(struct intel_atomic_state *state,
int intel_dp_init_hdcp(struct intel_digital_port *dig_port,
struct intel_connector *intel_connector);
+bool intel_dp_initial_fastset_check(struct intel_encoder *encoder,
+ struct intel_crtc_state *crtc_state);
+
#endif /* __INTEL_DP_H__ */
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 82f38c386dbd..e948aacbd4ab 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -591,6 +591,15 @@ static void intel_dp_mst_enc_get_config(struct intel_encoder *encoder,
intel_ddi_get_config(&dig_port->base, pipe_config);
}
+static bool intel_dp_mst_initial_fastset_check(struct intel_encoder *encoder,
+ struct intel_crtc_state *crtc_state)
+{
+ struct intel_dp_mst_encoder *intel_mst = enc_to_mst(encoder);
+ struct intel_digital_port *dig_port = intel_mst->primary;
+
+ return intel_dp_initial_fastset_check(&dig_port->base, crtc_state);
+}
+
static int intel_dp_mst_get_ddc_modes(struct drm_connector *connector)
{
struct intel_connector *intel_connector = to_intel_connector(connector);
@@ -897,6 +906,7 @@ intel_dp_create_fake_mst_encoder(struct intel_digital_port *dig_port, enum pipe
intel_encoder->enable = intel_mst_enable_dp;
intel_encoder->get_hw_state = intel_dp_mst_enc_get_hw_state;
intel_encoder->get_config = intel_dp_mst_enc_get_config;
+ intel_encoder->initial_fastset_check = intel_dp_mst_initial_fastset_check;
return intel_mst;
--
2.25.1
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