From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Now that we've plumbed the crtc state all the way down we can
eliminate the DP_TP_{CTL,STATUS} register offsets from intel_dp,
and instead we derive them directly from the crtc state.
And thus we can get rid of the nasty hack in intel_ddi_get_config()
which mutates intel_dp during the readout.
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_ddi.c | 103 ++++++++++--------
drivers/gpu/drm/i915/display/intel_ddi.h | 5 +
.../drm/i915/display/intel_display_types.h | 8 --
drivers/gpu/drm/i915/display/intel_dp.c | 2 -
drivers/gpu/drm/i915/display/intel_dp_mst.c | 10 +-
5 files changed, 68 insertions(+), 60 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 77d2021d0bcd..8e7caf78ea09 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -3029,6 +3029,37 @@ icl_program_mg_dp_mode(struct intel_digital_port *intel_dig_port,
}
}
+static enum transcoder
+tgl_dp_tp_transcoder(const struct intel_crtc_state *crtc_state)
+{
+ if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST))
+ return crtc_state->mst_master_transcoder;
+ else
+ return crtc_state->cpu_transcoder;
+}
+
+i915_reg_t dp_tp_ctl_reg(struct intel_encoder *encoder,
+ const struct intel_crtc_state *crtc_state)
+{
+ struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+
+ if (INTEL_GEN(dev_priv) >= 12)
+ return TGL_DP_TP_CTL(tgl_dp_tp_transcoder(crtc_state));
+ else
+ return DP_TP_CTL(encoder->port);
+}
+
+i915_reg_t dp_tp_status_reg(struct intel_encoder *encoder,
+ const struct intel_crtc_state *crtc_state)
+{
+ struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+
+ if (INTEL_GEN(dev_priv) >= 12)
+ return TGL_DP_TP_STATUS(tgl_dp_tp_transcoder(crtc_state));
+ else
+ return DP_TP_STATUS(encoder->port);
+}
+
static void intel_dp_sink_set_fec_ready(struct intel_dp *intel_dp,
const struct intel_crtc_state *crtc_state)
{
@@ -3053,11 +3084,12 @@ static void intel_ddi_enable_fec(struct intel_encoder *encoder,
return;
intel_dp = enc_to_intel_dp(encoder);
- val = intel_de_read(dev_priv, intel_dp->regs.dp_tp_ctl);
+ val = intel_de_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state));
val |= DP_TP_CTL_FEC_ENABLE;
- intel_de_write(dev_priv, intel_dp->regs.dp_tp_ctl, val);
+ intel_de_write(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), val);
- if (intel_de_wait_for_set(dev_priv, intel_dp->regs.dp_tp_status,
+ if (intel_de_wait_for_set(dev_priv,
+ dp_tp_status_reg(encoder, crtc_state),
DP_TP_STATUS_FEC_ENABLE_LIVE, 1))
drm_err(&dev_priv->drm,
"Timed out waiting for FEC Enable Status\n");
@@ -3074,10 +3106,10 @@ static void intel_ddi_disable_fec_state(struct intel_encoder *encoder,
return;
intel_dp = enc_to_intel_dp(encoder);
- val = intel_de_read(dev_priv, intel_dp->regs.dp_tp_ctl);
+ val = intel_de_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state));
val &= ~DP_TP_CTL_FEC_ENABLE;
- intel_de_write(dev_priv, intel_dp->regs.dp_tp_ctl, val);
- intel_de_posting_read(dev_priv, intel_dp->regs.dp_tp_ctl);
+ intel_de_write(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), val);
+ intel_de_posting_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state));
}
static void tgl_ddi_pre_enable_dp(struct intel_atomic_state *state,
@@ -3091,15 +3123,11 @@ static void tgl_ddi_pre_enable_dp(struct intel_atomic_state *state,
struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
bool is_mst = intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST);
int level = intel_ddi_dp_level(intel_dp);
- enum transcoder transcoder = crtc_state->cpu_transcoder;
intel_dp_set_link_params(intel_dp,
crtc_state->port_clock,
crtc_state->lane_count);
- intel_dp->regs.dp_tp_ctl = TGL_DP_TP_CTL(transcoder);
- intel_dp->regs.dp_tp_status = TGL_DP_TP_STATUS(transcoder);
-
/*
* 1. Enable Power Wells
*
@@ -3418,12 +3446,10 @@ static void intel_disable_ddi_buf(struct intel_encoder *encoder,
}
if (intel_crtc_has_dp_encoder(crtc_state)) {
- struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
-
- val = intel_de_read(dev_priv, intel_dp->regs.dp_tp_ctl);
+ val = intel_de_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state));
val &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK);
val |= DP_TP_CTL_LINK_TRAIN_PAT1;
- intel_de_write(dev_priv, intel_dp->regs.dp_tp_ctl, val);
+ intel_de_write(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), val);
}
/* Disable FEC in DP Sink */
@@ -3915,14 +3941,13 @@ intel_ddi_pre_pll_enable(struct intel_atomic_state *state,
static void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp,
const struct intel_crtc_state *crtc_state)
{
- struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
- struct drm_i915_private *dev_priv =
- to_i915(intel_dig_port->base.base.dev);
- enum port port = intel_dig_port->base.port;
+ struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
+ struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+ enum port port = encoder->port;
u32 dp_tp_ctl, ddi_buf_ctl;
bool wait = false;
- dp_tp_ctl = intel_de_read(dev_priv, intel_dp->regs.dp_tp_ctl);
+ dp_tp_ctl = intel_de_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state));
if (dp_tp_ctl & DP_TP_CTL_ENABLE) {
ddi_buf_ctl = intel_de_read(dev_priv, DDI_BUF_CTL(port));
@@ -3934,8 +3959,8 @@ static void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp,
dp_tp_ctl &= ~(DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_MASK);
dp_tp_ctl |= DP_TP_CTL_LINK_TRAIN_PAT1;
- intel_de_write(dev_priv, intel_dp->regs.dp_tp_ctl, dp_tp_ctl);
- intel_de_posting_read(dev_priv, intel_dp->regs.dp_tp_ctl);
+ intel_de_write(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), dp_tp_ctl);
+ intel_de_posting_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state));
if (wait)
intel_wait_ddi_buf_idle(dev_priv, port);
@@ -3950,8 +3975,8 @@ static void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp,
if (drm_dp_enhanced_frame_cap(intel_dp->dpcd))
dp_tp_ctl |= DP_TP_CTL_ENHANCED_FRAME_ENABLE;
}
- intel_de_write(dev_priv, intel_dp->regs.dp_tp_ctl, dp_tp_ctl);
- intel_de_posting_read(dev_priv, intel_dp->regs.dp_tp_ctl);
+ intel_de_write(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), dp_tp_ctl);
+ intel_de_posting_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state));
intel_dp->DP |= DDI_BUF_CTL_ENABLE;
intel_de_write(dev_priv, DDI_BUF_CTL(port), intel_dp->DP);
@@ -3964,12 +3989,13 @@ static void intel_ddi_set_link_train(struct intel_dp *intel_dp,
const struct intel_crtc_state *crtc_state,
u8 dp_train_pat)
{
- struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
+ struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
u8 train_pat_mask = drm_dp_training_pattern_mask(intel_dp->dpcd);
enum port port = dp_to_dig_port(intel_dp)->base.port;
u32 temp;
- temp = intel_de_read(dev_priv, intel_dp->regs.dp_tp_ctl);
+ temp = intel_de_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state));
if (dp_train_pat & DP_LINK_SCRAMBLING_DISABLE)
temp |= DP_TP_CTL_SCRAMBLE_DISABLE;
@@ -3995,7 +4021,7 @@ static void intel_ddi_set_link_train(struct intel_dp *intel_dp,
break;
}
- intel_de_write(dev_priv, intel_dp->regs.dp_tp_ctl, temp);
+ intel_de_write(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), temp);
intel_de_write(dev_priv, DDI_BUF_CTL(port), intel_dp->DP);
intel_de_posting_read(dev_priv, DDI_BUF_CTL(port));
@@ -4009,10 +4035,10 @@ static void intel_ddi_set_idle_link_train(struct intel_dp *intel_dp,
enum port port = encoder->port;
u32 val;
- val = intel_de_read(dev_priv, intel_dp->regs.dp_tp_ctl);
+ val = intel_de_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state));
val &= ~DP_TP_CTL_LINK_TRAIN_MASK;
val |= DP_TP_CTL_LINK_TRAIN_IDLE;
- intel_de_write(dev_priv, intel_dp->regs.dp_tp_ctl, val);
+ intel_de_write(dev_priv, dp_tp_ctl_reg(encoder, crtc_state), val);
/*
* Until TGL on PORT_A we can have only eDP in SST mode. There the only
@@ -4024,7 +4050,8 @@ static void intel_ddi_set_idle_link_train(struct intel_dp *intel_dp,
if (port == PORT_A && INTEL_GEN(dev_priv) < 12)
return;
- if (intel_de_wait_for_set(dev_priv, intel_dp->regs.dp_tp_status,
+ if (intel_de_wait_for_set(dev_priv,
+ dp_tp_status_reg(encoder, crtc_state),
DP_TP_STATUS_IDLE_DONE, 1))
drm_err(&dev_priv->drm,
"Timed out waiting for DP idle patterns\n");
@@ -4122,18 +4149,12 @@ void intel_ddi_get_config(struct intel_encoder *encoder,
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
struct intel_crtc *intel_crtc = to_intel_crtc(pipe_config->uapi.crtc);
enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
- struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
u32 temp, flags = 0;
/* XXX: DSI transcoder paranoia */
if (drm_WARN_ON(&dev_priv->drm, transcoder_is_dsi(cpu_transcoder)))
return;
- if (INTEL_GEN(dev_priv) >= 12) {
- intel_dp->regs.dp_tp_ctl = TGL_DP_TP_CTL(cpu_transcoder);
- intel_dp->regs.dp_tp_status = TGL_DP_TP_STATUS(cpu_transcoder);
- }
-
intel_dsc_get_config(encoder, pipe_config);
temp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder));
@@ -4197,12 +4218,7 @@ void intel_ddi_get_config(struct intel_encoder *encoder,
intel_dp_get_m_n(intel_crtc, pipe_config);
if (INTEL_GEN(dev_priv) >= 11) {
- i915_reg_t dp_tp_ctl;
-
- if (IS_GEN(dev_priv, 11))
- dp_tp_ctl = DP_TP_CTL(encoder->port);
- else
- dp_tp_ctl = TGL_DP_TP_CTL(pipe_config->cpu_transcoder);
+ i915_reg_t dp_tp_ctl = dp_tp_ctl_reg(encoder, pipe_config);
pipe_config->fec_enable =
intel_de_read(dev_priv, dp_tp_ctl) & DP_TP_CTL_FEC_ENABLE;
@@ -4491,11 +4507,6 @@ intel_ddi_init_dp_connector(struct intel_digital_port *intel_dig_port)
intel_dig_port->dp.voltage_max = intel_ddi_dp_voltage_max;
intel_dig_port->dp.preemph_max = intel_ddi_dp_preemph_max;
- if (INTEL_GEN(dev_priv) < 12) {
- intel_dig_port->dp.regs.dp_tp_ctl = DP_TP_CTL(port);
- intel_dig_port->dp.regs.dp_tp_status = DP_TP_STATUS(port);
- }
-
if (!intel_dp_init_connector(intel_dig_port, connector)) {
kfree(connector);
return NULL;
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.h b/drivers/gpu/drm/i915/display/intel_ddi.h
index 7a06bb942d21..c4c90815c5f6 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.h
+++ b/drivers/gpu/drm/i915/display/intel_ddi.h
@@ -7,6 +7,7 @@
#define __INTEL_DDI_H__
#include "intel_display.h"
+#include "i915_reg.h"
struct drm_connector_state;
struct drm_i915_private;
@@ -17,6 +18,10 @@ struct intel_dp;
struct intel_dpll_hw_state;
struct intel_encoder;
+i915_reg_t dp_tp_ctl_reg(struct intel_encoder *encoder,
+ const struct intel_crtc_state *crtc_state);
+i915_reg_t dp_tp_status_reg(struct intel_encoder *encoder,
+ const struct intel_crtc_state *crtc_state);
void intel_ddi_fdi_post_disable(struct intel_atomic_state *state,
struct intel_encoder *intel_encoder,
const struct intel_crtc_state *old_crtc_state,
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index b7177134acc3..97ca779f7470 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -1338,14 +1338,6 @@ struct intel_dp {
bool is_mst;
int active_mst_links;
- /*
- * DP_TP_* registers may be either on port or transcoder register space.
- */
- struct {
- i915_reg_t dp_tp_ctl;
- i915_reg_t dp_tp_status;
- } regs;
-
/* connector directly attached - won't be use for modeset in mst world */
struct intel_connector *attached_connector;
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 562cb560d6c0..c613fc087201 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -8504,8 +8504,6 @@ bool intel_dp_init(struct drm_i915_private *dev_priv,
intel_dig_port->dp.output_reg = output_reg;
intel_dig_port->max_lanes = 4;
- intel_dig_port->dp.regs.dp_tp_ctl = DP_TP_CTL(port);
- intel_dig_port->dp.regs.dp_tp_status = DP_TP_STATUS(port);
intel_encoder->type = INTEL_OUTPUT_DP;
intel_encoder->power_domain = intel_port_to_power_domain(port);
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 4d2384650383..9a05200a74f4 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -376,7 +376,8 @@ static void intel_mst_post_disable_dp(struct intel_atomic_state *state,
TRANS_DDI_FUNC_CTL(old_crtc_state->cpu_transcoder),
val);
- if (intel_de_wait_for_set(dev_priv, intel_dp->regs.dp_tp_status,
+ if (intel_de_wait_for_set(dev_priv,
+ dp_tp_ctl_reg(encoder, old_crtc_state),
DP_TP_STATUS_ACT_SENT, 1))
drm_err(&dev_priv->drm,
"Timed out waiting for ACT sent when disabling\n");
@@ -476,8 +477,8 @@ static void intel_mst_pre_enable_dp(struct intel_atomic_state *state,
drm_err(&dev_priv->drm, "failed to allocate vcpi\n");
intel_dp->active_mst_links++;
- temp = intel_de_read(dev_priv, intel_dp->regs.dp_tp_status);
- intel_de_write(dev_priv, intel_dp->regs.dp_tp_status, temp);
+ temp = intel_de_read(dev_priv, dp_tp_status_reg(encoder, pipe_config));
+ intel_de_write(dev_priv, dp_tp_status_reg(encoder, pipe_config), temp);
ret = drm_dp_update_payload_part1(&intel_dp->mst_mgr);
@@ -517,7 +518,8 @@ static void intel_mst_enable_dp(struct intel_atomic_state *state,
drm_dbg_kms(&dev_priv->drm, "active links %d\n",
intel_dp->active_mst_links);
- if (intel_de_wait_for_set(dev_priv, intel_dp->regs.dp_tp_status,
+ if (intel_de_wait_for_set(dev_priv,
+ dp_tp_status_reg(encoder, pipe_config),
DP_TP_STATUS_ACT_SENT, 1))
drm_err(&dev_priv->drm, "Timed out waiting for ACT sent\n");
--
2.24.1
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