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drm/i915: Remove the encoder update_prepare()/complete() hooks

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The encoder update_prepare()/complete() hooks were added to hold a
TC port link reference for all outputs in the atomic state around the
whole modeset enable sequence - thus locking the ports' TC mode - and
set the TBT/DP-alt PLL type corresponding to the current TC mode.

Since nothing depends on the PLL selection before/after then encoder's
pre_pll_enable/post_pll_disable hooks are called, the above steps can be
moved to these hooks, so do that and remove the
update_prepare()/complete() hooks.

Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230323142035.1432621-30-imre.deak@intel.com
This commit is contained in:
Imre Deak 2023-03-23 16:20:35 +02:00
parent 450c27fc9e
commit 0f752b2178
3 changed files with 12 additions and 121 deletions
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49
drivers/gpu/drm/i915/display/intel_ddi.c
View file

@ -3060,39 +3060,6 @@ void intel_ddi_update_pipe(struct intel_atomic_state *state,
intel_hdcp_update_pipe(state, encoder, crtc_state, conn_state);
}
static void
intel_ddi_update_prepare(struct intel_atomic_state *state,
struct intel_encoder *encoder,
struct intel_crtc *crtc)
{
struct drm_i915_private *i915 = to_i915(state->base.dev);
struct intel_crtc_state *crtc_state =
crtc ? intel_atomic_get_new_crtc_state(state, crtc) : NULL;
int required_lanes = crtc_state ? crtc_state->lane_count : 1;
drm_WARN_ON(state->base.dev, crtc && crtc->active);
intel_tc_port_get_link(enc_to_dig_port(encoder),
required_lanes);
if (crtc_state && crtc_state->hw.active) {
struct intel_crtc *slave_crtc;
intel_update_active_dpll(state, crtc, encoder);
for_each_intel_crtc_in_pipe_mask(&i915->drm, slave_crtc,
intel_crtc_bigjoiner_slave_pipes(crtc_state))
intel_update_active_dpll(state, slave_crtc, encoder);
}
}
static void
intel_ddi_update_complete(struct intel_atomic_state *state,
struct intel_encoder *encoder,
struct intel_crtc *crtc)
{
intel_tc_port_put_link(enc_to_dig_port(encoder));
}
static void
intel_ddi_pre_pll_enable(struct intel_atomic_state *state,
struct intel_encoder *encoder,
@ -3104,9 +3071,20 @@ intel_ddi_pre_pll_enable(struct intel_atomic_state *state,
enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
bool is_tc_port = intel_phy_is_tc(dev_priv, phy);
if (is_tc_port)
if (is_tc_port) {
struct intel_crtc *master_crtc =
to_intel_crtc(crtc_state->uapi.crtc);
struct intel_crtc *slave_crtc;
intel_tc_port_get_link(dig_port, crtc_state->lane_count);
intel_update_active_dpll(state, master_crtc, encoder);
for_each_intel_crtc_in_pipe_mask(&dev_priv->drm, slave_crtc,
intel_crtc_bigjoiner_slave_pipes(crtc_state))
intel_update_active_dpll(state, slave_crtc, encoder);
}
main_link_aux_power_domain_get(dig_port, crtc_state);
if (is_tc_port && !intel_tc_port_in_tbt_alt_mode(dig_port))
@ -4552,9 +4530,6 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
if (intel_tc_port_init(dig_port, is_legacy) < 0)
goto err;
encoder->update_prepare = intel_ddi_update_prepare;
encoder->update_complete = intel_ddi_update_complete;
}
drm_WARN_ON(&dev_priv->drm, port > PORT_I);

78
drivers/gpu/drm/i915/display/intel_display.c
View file

@ -1320,36 +1320,11 @@ static void intel_crtc_disable_planes(struct intel_atomic_state *state,
intel_frontbuffer_flip(dev_priv, fb_bits);
}
/*
* intel_connector_primary_encoder - get the primary encoder for a connector
* @connector: connector for which to return the encoder
*
* Returns the primary encoder for a connector. There is a 1:1 mapping from
* all connectors to their encoder, except for DP-MST connectors which have
* both a virtual and a primary encoder. These DP-MST primary encoders can be
* pointed to by as many DP-MST connectors as there are pipes.
*/
static struct intel_encoder *
intel_connector_primary_encoder(struct intel_connector *connector)
{
struct intel_encoder *encoder;
if (connector->mst_port)
return &dp_to_dig_port(connector->mst_port)->base;
encoder = intel_attached_encoder(connector);
drm_WARN_ON(connector->base.dev, !encoder);
return encoder;
}
static void intel_encoders_update_prepare(struct intel_atomic_state *state)
{
struct drm_i915_private *i915 = to_i915(state->base.dev);
struct intel_crtc_state *new_crtc_state, *old_crtc_state;
struct intel_crtc *crtc;
struct drm_connector_state *new_conn_state;
struct drm_connector *connector;
int i;
/*
@ -1365,57 +1340,6 @@ static void intel_encoders_update_prepare(struct intel_atomic_state *state)
new_crtc_state->dpll_hw_state = old_crtc_state->dpll_hw_state;
}
}
if (!state->modeset)
return;
for_each_new_connector_in_state(&state->base, connector, new_conn_state,
i) {
struct intel_connector *intel_connector;
struct intel_encoder *encoder;
struct intel_crtc *crtc;
if (!intel_connector_needs_modeset(state, connector))
continue;
intel_connector = to_intel_connector(connector);
encoder = intel_connector_primary_encoder(intel_connector);
if (!encoder->update_prepare)
continue;
crtc = new_conn_state->crtc ?
to_intel_crtc(new_conn_state->crtc) : NULL;
encoder->update_prepare(state, encoder, crtc);
}
}
static void intel_encoders_update_complete(struct intel_atomic_state *state)
{
struct drm_connector_state *new_conn_state;
struct drm_connector *connector;
int i;
if (!state->modeset)
return;
for_each_new_connector_in_state(&state->base, connector, new_conn_state,
i) {
struct intel_connector *intel_connector;
struct intel_encoder *encoder;
struct intel_crtc *crtc;
if (!intel_connector_needs_modeset(state, connector))
continue;
intel_connector = to_intel_connector(connector);
encoder = intel_connector_primary_encoder(intel_connector);
if (!encoder->update_complete)
continue;
crtc = new_conn_state->crtc ?
to_intel_crtc(new_conn_state->crtc) : NULL;
encoder->update_complete(state, encoder, crtc);
}
}
static void intel_encoders_pre_pll_enable(struct intel_atomic_state *state,
@ -7445,8 +7369,6 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state)
/* Now enable the clocks, plane, pipe, and connectors that we set up. */
dev_priv->display.funcs.display->commit_modeset_enables(state);
intel_encoders_update_complete(state);
if (state->modeset)
intel_set_cdclk_post_plane_update(state);

6
drivers/gpu/drm/i915/display/intel_display_types.h
View file

@ -170,9 +170,6 @@ struct intel_encoder {
int (*compute_config_late)(struct intel_encoder *,
struct intel_crtc_state *,
struct drm_connector_state *);
void (*update_prepare)(struct intel_atomic_state *,
struct intel_encoder *,
struct intel_crtc *);
void (*pre_pll_enable)(struct intel_atomic_state *,
struct intel_encoder *,
const struct intel_crtc_state *,
@ -185,9 +182,6 @@ struct intel_encoder {
struct intel_encoder *,
const struct intel_crtc_state *,
const struct drm_connector_state *);
void (*update_complete)(struct intel_atomic_state *,
struct intel_encoder *,
struct intel_crtc *);
void (*disable)(struct intel_atomic_state *,
struct intel_encoder *,
const struct intel_crtc_state *,