[PATCH 04/15] drm/i915: Walk over encoders in crtc enable/disable using atomic state.

Maarten Lankhorst
2016-08-09T15:04:19Z

This cleans up another possible use of the connector list,
encoder->crtc is legacy state and should not be used.

With the atomic state as argument it's easy to find the encoder from
the connector it belongs to.

intel_opregion_notify_encoder is a noop for !HAS_DDI, so it's harmless
to unconditionally include it in encoder enable/disable.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
drivers/gpu/drm/i915/intel_display.c | 190 ++++++++++++++++++++++++-----------
1 file changed, 134 insertions(+), 56 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index ae555b4240c6..821dff719ec8 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4694,6 +4694,123 @@ static void intel_crtc_disable_planes(struct drm_crtc *crtc, unsigned plane_mask
intel_frontbuffer_flip(to_i915(dev), INTEL_FRONTBUFFER_ALL_MASK(pipe));
}

+static void intel_encoders_pre_pll_enable(struct drm_crtc *crtc,
+ struct drm_atomic_state *old_state)
+{
+ struct drm_connector_state *old_conn_state;
+ struct drm_connector *conn;
+ int i;
+
+ for_each_connector_in_state(old_state, conn, old_conn_state, i) {
+ struct drm_connector_state *conn_state = conn->state;
+ struct intel_encoder *encoder =
+ to_intel_encoder(conn_state->best_encoder);
+
+ if (conn_state->crtc != crtc)
+ continue;
+
+ if (encoder->pre_pll_enable)
+ encoder->pre_pll_enable(encoder);
+ }
+}
+
+static void intel_encoders_pre_enable(struct drm_crtc *crtc,
+ struct drm_atomic_state *old_state)
+{
+ struct drm_connector_state *old_conn_state;
+ struct drm_connector *conn;
+ int i;
+
+ for_each_connector_in_state(old_state, conn, old_conn_state, i) {
+ struct drm_connector_state *conn_state = conn->state;
+ struct intel_encoder *encoder =
+ to_intel_encoder(conn_state->best_encoder);
+
+ if (conn_state->crtc != crtc)
+ continue;
+
+ if (encoder->pre_enable)
+ encoder->pre_enable(encoder);
+ }
+}
+
+static void intel_encoders_enable(struct drm_crtc *crtc,
+ struct drm_atomic_state *old_state)
+{
+ struct drm_connector_state *old_conn_state;
+ struct drm_connector *conn;
+ int i;
+
+ for_each_connector_in_state(old_state, conn, old_conn_state, i) {
+ struct drm_connector_state *conn_state = conn->state;
+ struct intel_encoder *encoder =
+ to_intel_encoder(conn_state->best_encoder);
+
+ if (conn_state->crtc != crtc)
+ continue;
+
+ encoder->enable(encoder);
+ intel_opregion_notify_encoder(encoder, true);
+ }
+}
+
+static void intel_encoders_disable(struct drm_crtc *crtc,
+ struct drm_atomic_state *old_state)
+{
+ struct drm_connector_state *old_conn_state;
+ struct drm_connector *conn;
+ int i;
+
+ for_each_connector_in_state(old_state, conn, old_conn_state, i) {
+ struct intel_encoder *encoder =
+ to_intel_encoder(old_conn_state->best_encoder);
+
+ if (old_conn_state->crtc != crtc)
+ continue;
+
+ intel_opregion_notify_encoder(encoder, false);
+ encoder->disable(encoder);
+ }
+}
+
+static void intel_encoders_post_disable(struct drm_crtc *crtc,
+ struct drm_atomic_state *old_state)
+{
+ struct drm_connector_state *old_conn_state;
+ struct drm_connector *conn;
+ int i;
+
+ for_each_connector_in_state(old_state, conn, old_conn_state, i) {
+ struct intel_encoder *encoder =
+ to_intel_encoder(old_conn_state->best_encoder);
+
+ if (old_conn_state->crtc != crtc)
+ continue;
+
+ if (encoder->post_disable)
+ encoder->post_disable(encoder);
+ }
+}
+
+static void intel_encoders_post_pll_disable(struct drm_crtc *crtc,
+ struct drm_atomic_state *old_state)
+{
+ struct drm_connector_state *old_conn_state;
+ struct drm_connector *conn;
+ int i;
+
+ for_each_connector_in_state(old_state, conn, old_conn_state, i) {
+ struct intel_encoder *encoder =
+ to_intel_encoder(old_conn_state->best_encoder);
+
+ if (old_conn_state->crtc != crtc)
+ continue;
+
+ if (encoder->post_pll_disable)
+ encoder->post_pll_disable(encoder);
+ }
+}
+
static void ironlake_crtc_enable(struct intel_crtc_state *pipe_config,
struct drm_atomic_state *old_state)
{
@@ -4701,7 +4818,6 @@ static void ironlake_crtc_enable(struct intel_crtc_state *pipe_config,
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- struct intel_encoder *encoder;
int pipe = intel_crtc->pipe;

if (WARN_ON(intel_crtc->active))
@@ -4740,9 +4856,7 @@ static void ironlake_crtc_enable(struct intel_crtc_state *pipe_config,

intel_crtc->active = true;

- for_each_encoder_on_crtc(dev, crtc, encoder)
- if (encoder->pre_enable)
- encoder->pre_enable(encoder);
+ intel_encoders_pre_enable(crtc, old_state);

if (intel_crtc->config->has_pch_encoder) {
/* Note: FDI PLL enabling _must_ be done before we enable the
@@ -4772,8 +4886,7 @@ static void ironlake_crtc_enable(struct intel_crtc_state *pipe_config,
assert_vblank_disabled(crtc);
drm_crtc_vblank_on(crtc);

- for_each_encoder_on_crtc(dev, crtc, encoder)
- encoder->enable(encoder);
+ intel_encoders_enable(crtc, old_state);

if (HAS_PCH_CPT(dev))
cpt_verify_modeset(dev, intel_crtc->pipe);
@@ -4798,7 +4911,6 @@ static void haswell_crtc_enable(struct intel_crtc_state *pipe_config,
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- struct intel_encoder *encoder;
int pipe = intel_crtc->pipe, hsw_workaround_pipe;
enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder;

@@ -4809,9 +4921,7 @@ static void haswell_crtc_enable(struct intel_crtc_state *pipe_config,
intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A,
false);

- for_each_encoder_on_crtc(dev, crtc, encoder)
- if (encoder->pre_pll_enable)
- encoder->pre_pll_enable(encoder);
+ intel_encoders_pre_pll_enable(crtc, old_state);

if (intel_crtc->config->shared_dpll)
intel_enable_shared_dpll(intel_crtc);
@@ -4849,10 +4959,7 @@ static void haswell_crtc_enable(struct intel_crtc_state *pipe_config,
else
intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);

- for_each_encoder_on_crtc(dev, crtc, encoder) {
- if (encoder->pre_enable)
- encoder->pre_enable(encoder);
- }
+ intel_encoders_pre_enable(crtc, old_state);

if (intel_crtc->config->has_pch_encoder)
dev_priv->display.fdi_link_train(crtc);
@@ -4893,10 +5000,7 @@ static void haswell_crtc_enable(struct intel_crtc_state *pipe_config,
assert_vblank_disabled(crtc);
drm_crtc_vblank_on(crtc);

- for_each_encoder_on_crtc(dev, crtc, encoder) {
- encoder->enable(encoder);
- intel_opregion_notify_encoder(encoder, true);
- }
+ intel_encoders_enable(crtc, old_state);

if (intel_crtc->config->has_pch_encoder) {
intel_wait_for_vblank(dev, pipe);
@@ -4937,7 +5041,6 @@ static void ironlake_crtc_disable(struct intel_crtc_state *old_crtc_state,
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- struct intel_encoder *encoder;
int pipe = intel_crtc->pipe;

/*
@@ -4950,8 +5053,7 @@ static void ironlake_crtc_disable(struct intel_crtc_state *old_crtc_state,
intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, false);
}

- for_each_encoder_on_crtc(dev, crtc, encoder)
- encoder->disable(encoder);
+ intel_encoders_disable(crtc, old_state);

drm_crtc_vblank_off(crtc);
assert_vblank_disabled(crtc);
@@ -4963,9 +5065,7 @@ static void ironlake_crtc_disable(struct intel_crtc_state *old_crtc_state,
if (intel_crtc->config->has_pch_encoder)
ironlake_fdi_disable(crtc);

- for_each_encoder_on_crtc(dev, crtc, encoder)
- if (encoder->post_disable)
- encoder->post_disable(encoder);
+ intel_encoders_post_disable(crtc, old_state);

if (intel_crtc->config->has_pch_encoder) {
ironlake_disable_pch_transcoder(dev_priv, pipe);
@@ -5002,17 +5102,13 @@ static void haswell_crtc_disable(struct intel_crtc_state *old_crtc_state,
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- struct intel_encoder *encoder;
enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder;

if (intel_crtc->config->has_pch_encoder)
intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A,
false);

- for_each_encoder_on_crtc(dev, crtc, encoder) {
- intel_opregion_notify_encoder(encoder, false);
- encoder->disable(encoder);
- }
+ intel_encoders_disable(crtc, old_state);

drm_crtc_vblank_off(crtc);
assert_vblank_disabled(crtc);
@@ -5035,9 +5131,7 @@ static void haswell_crtc_disable(struct intel_crtc_state *old_crtc_state,
if (!transcoder_is_dsi(cpu_transcoder))
intel_ddi_disable_pipe_clock(intel_crtc);

- for_each_encoder_on_crtc(dev, crtc, encoder)
- if (encoder->post_disable)
- encoder->post_disable(encoder);
+ intel_encoders_post_disable(crtc, old_state);

if (intel_crtc->config->has_pch_encoder) {
lpt_disable_pch_transcoder(dev_priv);
@@ -6109,7 +6203,6 @@ static void valleyview_crtc_enable(struct intel_crtc_state *pipe_config,
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- struct intel_encoder *encoder;
int pipe = intel_crtc->pipe;

if (WARN_ON(intel_crtc->active))
@@ -6134,9 +6227,7 @@ static void valleyview_crtc_enable(struct intel_crtc_state *pipe_config,

intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);

- for_each_encoder_on_crtc(dev, crtc, encoder)
- if (encoder->pre_pll_enable)
- encoder->pre_pll_enable(encoder);
+ intel_encoders_pre_pll_enable(crtc, old_state);

if (IS_CHERRYVIEW(dev)) {
chv_prepare_pll(intel_crtc, intel_crtc->config);
@@ -6146,9 +6237,7 @@ static void valleyview_crtc_enable(struct intel_crtc_state *pipe_config,
vlv_enable_pll(intel_crtc, intel_crtc->config);
}

- for_each_encoder_on_crtc(dev, crtc, encoder)
- if (encoder->pre_enable)
- encoder->pre_enable(encoder);
+ intel_encoders_pre_enable(crtc, old_state);

i9xx_pfit_enable(intel_crtc);

@@ -6160,8 +6249,7 @@ static void valleyview_crtc_enable(struct intel_crtc_state *pipe_config,
assert_vblank_disabled(crtc);
drm_crtc_vblank_on(crtc);

- for_each_encoder_on_crtc(dev, crtc, encoder)
- encoder->enable(encoder);
+ intel_encoders_enable(crtc, old_state);
}

static void i9xx_set_pll_dividers(struct intel_crtc *crtc)
@@ -6180,7 +6268,6 @@ static void i9xx_crtc_enable(struct intel_crtc_state *pipe_config,
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- struct intel_encoder *encoder;
enum pipe pipe = intel_crtc->pipe;

if (WARN_ON(intel_crtc->active))
@@ -6201,9 +6288,7 @@ static void i9xx_crtc_enable(struct intel_crtc_state *pipe_config,
if (!IS_GEN2(dev))
intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);

- for_each_encoder_on_crtc(dev, crtc, encoder)
- if (encoder->pre_enable)
- encoder->pre_enable(encoder);
+ intel_encoders_pre_enable(crtc, old_state);

i9xx_enable_pll(intel_crtc);

@@ -6217,8 +6302,7 @@ static void i9xx_crtc_enable(struct intel_crtc_state *pipe_config,
assert_vblank_disabled(crtc);
drm_crtc_vblank_on(crtc);

- for_each_encoder_on_crtc(dev, crtc, encoder)
- encoder->enable(encoder);
+ intel_encoders_enable(crtc, old_state);
}

static void i9xx_pfit_disable(struct intel_crtc *crtc)
@@ -6243,7 +6327,6 @@ static void i9xx_crtc_disable(struct intel_crtc_state *old_crtc_state,
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
- struct intel_encoder *encoder;
int pipe = intel_crtc->pipe;

/*
@@ -6253,8 +6336,7 @@ static void i9xx_crtc_disable(struct intel_crtc_state *old_crtc_state,
if (IS_GEN2(dev))
intel_wait_for_vblank(dev, pipe);

- for_each_encoder_on_crtc(dev, crtc, encoder)
- encoder->disable(encoder);
+ intel_encoders_disable(crtc, old_state);

drm_crtc_vblank_off(crtc);
assert_vblank_disabled(crtc);
@@ -6263,9 +6345,7 @@ static void i9xx_crtc_disable(struct intel_crtc_state *old_crtc_state,

i9xx_pfit_disable(intel_crtc);

- for_each_encoder_on_crtc(dev, crtc, encoder)
- if (encoder->post_disable)
- encoder->post_disable(encoder);
+ intel_encoders_post_disable(crtc, old_state);

if (!intel_crtc_has_type(intel_crtc->config, INTEL_OUTPUT_DSI)) {
if (IS_CHERRYVIEW(dev))
@@ -6276,9 +6356,7 @@ static void i9xx_crtc_disable(struct intel_crtc_state *old_crtc_state,
i9xx_disable_pll(intel_crtc);
}

- for_each_encoder_on_crtc(dev, crtc, encoder)
- if (encoder->post_pll_disable)
- encoder->post_pll_disable(encoder);
+ intel_encoders_post_pll_disable(crtc, old_state);

if (!IS_GEN2(dev))
intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false);
--
2.7.4