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path: root/drivers/gpu/drm/i915/display/intel_ddi.c
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Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_ddi.c')
-rw-r--r--drivers/gpu/drm/i915/display/intel_ddi.c279
1 files changed, 227 insertions, 52 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index a49ff3a1a63c..4d06178cd76c 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -572,13 +572,13 @@ static const struct cnl_ddi_buf_trans ehl_combo_phy_ddi_translations_dp[] = {
/* NT mV Trans mV db */
{ 0xA, 0x33, 0x3F, 0x00, 0x00 }, /* 350 350 0.0 */
{ 0xA, 0x47, 0x36, 0x00, 0x09 }, /* 350 500 3.1 */
- { 0xC, 0x64, 0x30, 0x00, 0x0F }, /* 350 700 6.0 */
- { 0x6, 0x7F, 0x2C, 0x00, 0x13 }, /* 350 900 8.2 */
+ { 0xC, 0x64, 0x34, 0x00, 0x0B }, /* 350 700 6.0 */
+ { 0x6, 0x7F, 0x30, 0x00, 0x0F }, /* 350 900 8.2 */
{ 0xA, 0x46, 0x3F, 0x00, 0x00 }, /* 500 500 0.0 */
- { 0xC, 0x64, 0x36, 0x00, 0x09 }, /* 500 700 2.9 */
- { 0x6, 0x7F, 0x30, 0x00, 0x0F }, /* 500 900 5.1 */
+ { 0xC, 0x64, 0x38, 0x00, 0x07 }, /* 500 700 2.9 */
+ { 0x6, 0x7F, 0x32, 0x00, 0x0D }, /* 500 900 5.1 */
{ 0xC, 0x61, 0x3F, 0x00, 0x00 }, /* 650 700 0.6 */
- { 0x6, 0x7F, 0x37, 0x00, 0x08 }, /* 600 900 3.5 */
+ { 0x6, 0x7F, 0x38, 0x00, 0x07 }, /* 600 900 3.5 */
{ 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 900 900 0.0 */
};
@@ -706,6 +706,42 @@ static const struct cnl_ddi_buf_trans tgl_combo_phy_ddi_translations_dp_hbr2[] =
{ 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 900 900 0.0 */
};
+static const struct cnl_ddi_buf_trans tgl_uy_combo_phy_ddi_translations_dp_hbr2[] = {
+ /* NT mV Trans mV db */
+ { 0xA, 0x35, 0x3F, 0x00, 0x00 }, /* 350 350 0.0 */
+ { 0xA, 0x4F, 0x36, 0x00, 0x09 }, /* 350 500 3.1 */
+ { 0xC, 0x60, 0x32, 0x00, 0x0D }, /* 350 700 6.0 */
+ { 0xC, 0x7F, 0x2D, 0x00, 0x12 }, /* 350 900 8.2 */
+ { 0xC, 0x47, 0x3F, 0x00, 0x00 }, /* 500 500 0.0 */
+ { 0xC, 0x6F, 0x36, 0x00, 0x09 }, /* 500 700 2.9 */
+ { 0x6, 0x7D, 0x32, 0x00, 0x0D }, /* 500 900 5.1 */
+ { 0x6, 0x60, 0x3C, 0x00, 0x03 }, /* 650 700 0.6 */
+ { 0x6, 0x7F, 0x34, 0x00, 0x0B }, /* 600 900 3.5 */
+ { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 900 900 0.0 */
+};
+
+/*
+ * Cloned the HOBL entry to comply with the voltage and pre-emphasis entries
+ * that DisplayPort specification requires
+ */
+static const struct cnl_ddi_buf_trans tgl_combo_phy_ddi_translations_edp_hbr2_hobl[] = {
+ /* VS pre-emp */
+ { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 0 0 */
+ { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 0 1 */
+ { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 0 2 */
+ { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 0 3 */
+ { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 1 0 */
+ { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 1 1 */
+ { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 1 2 */
+ { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 2 0 */
+ { 0x6, 0x7F, 0x3F, 0x00, 0x00 }, /* 2 1 */
+};
+
+static bool is_hobl_buf_trans(const struct cnl_ddi_buf_trans *table)
+{
+ return table == tgl_combo_phy_ddi_translations_edp_hbr2_hobl;
+}
+
static const struct ddi_buf_trans *
bdw_get_buf_trans_edp(struct intel_encoder *encoder, int *n_entries)
{
@@ -1038,27 +1074,74 @@ static const struct cnl_ddi_buf_trans *
ehl_get_combo_buf_trans(struct intel_encoder *encoder, int type, int rate,
int *n_entries)
{
- if (type != INTEL_OUTPUT_HDMI && type != INTEL_OUTPUT_EDP) {
+ struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+
+ switch (type) {
+ case INTEL_OUTPUT_HDMI:
+ *n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_hdmi);
+ return icl_combo_phy_ddi_translations_hdmi;
+ case INTEL_OUTPUT_EDP:
+ if (dev_priv->vbt.edp.low_vswing) {
+ if (rate > 540000) {
+ *n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_edp_hbr3);
+ return icl_combo_phy_ddi_translations_edp_hbr3;
+ } else {
+ *n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_edp_hbr2);
+ return icl_combo_phy_ddi_translations_edp_hbr2;
+ }
+ }
+ /* fall through */
+ default:
+ /* All combo DP and eDP ports that do not support low_vswing */
*n_entries = ARRAY_SIZE(ehl_combo_phy_ddi_translations_dp);
return ehl_combo_phy_ddi_translations_dp;
}
-
- return icl_get_combo_buf_trans(encoder, type, rate, n_entries);
}
static const struct cnl_ddi_buf_trans *
tgl_get_combo_buf_trans(struct intel_encoder *encoder, int type, int rate,
int *n_entries)
{
- if (type == INTEL_OUTPUT_HDMI || type == INTEL_OUTPUT_EDP) {
- return icl_get_combo_buf_trans(encoder, type, rate, n_entries);
- } else if (rate > 270000) {
- *n_entries = ARRAY_SIZE(tgl_combo_phy_ddi_translations_dp_hbr2);
- return tgl_combo_phy_ddi_translations_dp_hbr2;
- }
+ struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+
+ switch (type) {
+ case INTEL_OUTPUT_HDMI:
+ *n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_hdmi);
+ return icl_combo_phy_ddi_translations_hdmi;
+ case INTEL_OUTPUT_EDP:
+ if (dev_priv->vbt.edp.hobl) {
+ struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+ if (!intel_dp->hobl_failed && rate <= 540000) {
+ /* Same table applies to TGL, RKL and DG1 */
+ *n_entries = ARRAY_SIZE(tgl_combo_phy_ddi_translations_edp_hbr2_hobl);
+ return tgl_combo_phy_ddi_translations_edp_hbr2_hobl;
+ }
+ }
+
+ if (rate > 540000) {
+ *n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_edp_hbr3);
+ return icl_combo_phy_ddi_translations_edp_hbr3;
+ } else if (dev_priv->vbt.edp.low_vswing) {
+ *n_entries = ARRAY_SIZE(icl_combo_phy_ddi_translations_edp_hbr2);
+ return icl_combo_phy_ddi_translations_edp_hbr2;
+ }
+ /* fall through */
+ default:
+ /* All combo DP and eDP ports that do not support low_vswing */
+ if (rate > 270000) {
+ if (IS_TGL_U(dev_priv) || IS_TGL_Y(dev_priv)) {
+ *n_entries = ARRAY_SIZE(tgl_uy_combo_phy_ddi_translations_dp_hbr2);
+ return tgl_uy_combo_phy_ddi_translations_dp_hbr2;
+ }
+
+ *n_entries = ARRAY_SIZE(tgl_combo_phy_ddi_translations_dp_hbr2);
+ return tgl_combo_phy_ddi_translations_dp_hbr2;
+ }
- *n_entries = ARRAY_SIZE(tgl_combo_phy_ddi_translations_dp_hbr);
- return tgl_combo_phy_ddi_translations_dp_hbr;
+ *n_entries = ARRAY_SIZE(tgl_combo_phy_ddi_translations_dp_hbr);
+ return tgl_combo_phy_ddi_translations_dp_hbr;
+ }
}
static const struct tgl_dkl_phy_ddi_buf_trans *
@@ -1738,6 +1821,8 @@ void intel_ddi_disable_transcoder_func(const struct intel_crtc_state *crtc_state
ctl = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder));
+ drm_WARN_ON(crtc->base.dev, ctl & TRANS_DDI_HDCP_SIGNALLING);
+
ctl &= ~TRANS_DDI_FUNC_ENABLE;
if (IS_GEN_RANGE(dev_priv, 8, 10))
@@ -1765,12 +1850,12 @@ void intel_ddi_disable_transcoder_func(const struct intel_crtc_state *crtc_state
}
int intel_ddi_toggle_hdcp_signalling(struct intel_encoder *intel_encoder,
+ enum transcoder cpu_transcoder,
bool enable)
{
struct drm_device *dev = intel_encoder->base.dev;
struct drm_i915_private *dev_priv = to_i915(dev);
intel_wakeref_t wakeref;
- enum pipe pipe = 0;
int ret = 0;
u32 tmp;
@@ -1779,19 +1864,12 @@ int intel_ddi_toggle_hdcp_signalling(struct intel_encoder *intel_encoder,
if (drm_WARN_ON(dev, !wakeref))
return -ENXIO;
- if (drm_WARN_ON(dev,
- !intel_encoder->get_hw_state(intel_encoder, &pipe))) {
- ret = -EIO;
- goto out;
- }
-
- tmp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(pipe));
+ tmp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder));
if (enable)
tmp |= TRANS_DDI_HDCP_SIGNALLING;
else
tmp &= ~TRANS_DDI_HDCP_SIGNALLING;
- intel_de_write(dev_priv, TRANS_DDI_FUNC_CTL(pipe), tmp);
-out:
+ intel_de_write(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder), tmp);
intel_display_power_put(dev_priv, intel_encoder->power_domain, wakeref);
return ret;
}
@@ -2392,6 +2470,15 @@ static void icl_ddi_combo_vswing_program(struct intel_encoder *encoder,
level = n_entries - 1;
}
+ if (type == INTEL_OUTPUT_EDP) {
+ struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+ val = EDP4K2K_MODE_OVRD_EN | EDP4K2K_MODE_OVRD_OPTIMIZED;
+ intel_dp->hobl_active = is_hobl_buf_trans(ddi_translations);
+ intel_de_rmw(dev_priv, ICL_PORT_CL_DW10(phy), val,
+ intel_dp->hobl_active ? val : 0);
+ }
+
/* Set PORT_TX_DW5 */
val = intel_de_read(dev_priv, ICL_PORT_TX_DW5_LN0(phy));
val &= ~(SCALING_MODE_SEL_MASK | RTERM_SELECT_MASK |
@@ -2802,7 +2889,9 @@ hsw_set_signal_levels(struct intel_dp *intel_dp)
static u32 icl_dpclka_cfgcr0_clk_off(struct drm_i915_private *dev_priv,
enum phy phy)
{
- if (intel_phy_is_combo(dev_priv, phy)) {
+ if (IS_ROCKETLAKE(dev_priv)) {
+ return RKL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy);
+ } else if (intel_phy_is_combo(dev_priv, phy)) {
return ICL_DPCLKA_CFGCR0_DDI_CLK_OFF(phy);
} else if (intel_phy_is_tc(dev_priv, phy)) {
enum tc_port tc_port = intel_port_to_tc(dev_priv,
@@ -2829,6 +2918,16 @@ static void icl_map_plls_to_ports(struct intel_encoder *encoder,
(val & icl_dpclka_cfgcr0_clk_off(dev_priv, phy)) == 0);
if (intel_phy_is_combo(dev_priv, phy)) {
+ u32 mask, sel;
+
+ if (IS_ROCKETLAKE(dev_priv)) {
+ mask = RKL_DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(phy);
+ sel = RKL_DPCLKA_CFGCR0_DDI_CLK_SEL(pll->info->id, phy);
+ } else {
+ mask = ICL_DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(phy);
+ sel = ICL_DPCLKA_CFGCR0_DDI_CLK_SEL(pll->info->id, phy);
+ }
+
/*
* Even though this register references DDIs, note that we
* want to pass the PHY rather than the port (DDI). For
@@ -2839,8 +2938,8 @@ static void icl_map_plls_to_ports(struct intel_encoder *encoder,
* Clock Select chooses the PLL for both DDIA and DDID and
* drives port A in all cases."
*/
- val &= ~ICL_DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(phy);
- val |= ICL_DPCLKA_CFGCR0_DDI_CLK_SEL(pll->info->id, phy);
+ val &= ~mask;
+ val |= sel;
intel_de_write(dev_priv, ICL_DPCLKA_CFGCR0, val);
intel_de_posting_read(dev_priv, ICL_DPCLKA_CFGCR0);
}
@@ -3371,6 +3470,7 @@ static void hsw_ddi_pre_enable_dp(struct intel_atomic_state *state,
intel_ddi_init_dp_buf_reg(encoder);
if (!is_mst)
intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
+ intel_dp_configure_protocol_converter(intel_dp);
intel_dp_sink_set_decompression_state(intel_dp, crtc_state,
true);
intel_dp_sink_set_fec_ready(intel_dp, crtc_state);
@@ -3482,19 +3582,17 @@ static void intel_ddi_pre_enable(struct intel_atomic_state *state,
intel_ddi_pre_enable_hdmi(state, encoder, crtc_state,
conn_state);
} else {
- struct intel_lspcon *lspcon =
- enc_to_intel_lspcon(encoder);
+ struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
intel_ddi_pre_enable_dp(state, encoder, crtc_state,
conn_state);
- if (lspcon->active) {
- struct intel_digital_port *dig_port =
- enc_to_dig_port(encoder);
+ /* FIXME precompute everything properly */
+ /* FIXME how do we turn infoframes off again? */
+ if (dig_port->lspcon.active && dig_port->dp.has_hdmi_sink)
dig_port->set_infoframes(encoder,
crtc_state->has_infoframe,
crtc_state, conn_state);
- }
}
}
@@ -3938,18 +4036,19 @@ static void intel_ddi_update_pipe_dp(struct intel_atomic_state *state,
intel_psr_update(intel_dp, crtc_state, conn_state);
intel_dp_set_infoframes(encoder, true, crtc_state, conn_state);
- intel_edp_drrs_enable(intel_dp, crtc_state);
+ intel_edp_drrs_update(intel_dp, crtc_state);
intel_panel_update_backlight(state, encoder, crtc_state, conn_state);
}
-static void intel_ddi_update_pipe(struct intel_atomic_state *state,
- struct intel_encoder *encoder,
- const struct intel_crtc_state *crtc_state,
- const struct drm_connector_state *conn_state)
+void intel_ddi_update_pipe(struct intel_atomic_state *state,
+ struct intel_encoder *encoder,
+ const struct intel_crtc_state *crtc_state,
+ const struct drm_connector_state *conn_state)
{
- if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
+ if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI) &&
+ !intel_encoder_is_mst(encoder))
intel_ddi_update_pipe_dp(state, encoder, crtc_state,
conn_state);
@@ -4037,8 +4136,7 @@ static void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp)
intel_wait_ddi_buf_idle(dev_priv, port);
}
- dp_tp_ctl = DP_TP_CTL_ENABLE |
- DP_TP_CTL_LINK_TRAIN_PAT1 | DP_TP_CTL_SCRAMBLE_DISABLE;
+ dp_tp_ctl = DP_TP_CTL_ENABLE | DP_TP_CTL_LINK_TRAIN_PAT1;
if (intel_dp->link_mst)
dp_tp_ctl |= DP_TP_CTL_MODE_MST;
else {
@@ -4061,16 +4159,10 @@ static void intel_ddi_set_link_train(struct intel_dp *intel_dp,
{
struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
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);
- if (dp_train_pat & DP_LINK_SCRAMBLING_DISABLE)
- temp |= DP_TP_CTL_SCRAMBLE_DISABLE;
- else
- temp &= ~DP_TP_CTL_SCRAMBLE_DISABLE;
-
temp &= ~DP_TP_CTL_LINK_TRAIN_MASK;
switch (dp_train_pat & train_pat_mask) {
case DP_TRAINING_PATTERN_DISABLE:
@@ -4091,9 +4183,6 @@ static void intel_ddi_set_link_train(struct intel_dp *intel_dp,
}
intel_de_write(dev_priv, intel_dp->regs.dp_tp_ctl, temp);
-
- intel_de_write(dev_priv, DDI_BUF_CTL(port), intel_dp->DP);
- intel_de_posting_read(dev_priv, DDI_BUF_CTL(port));
}
static void intel_ddi_set_idle_link_train(struct intel_dp *intel_dp)
@@ -4878,6 +4967,64 @@ intel_ddi_max_lanes(struct intel_digital_port *dig_port)
return max_lanes;
}
+static bool hti_uses_phy(struct drm_i915_private *i915, enum phy phy)
+{
+ return i915->hti_state & HDPORT_ENABLED &&
+ (i915->hti_state & HDPORT_PHY_USED_DP(phy) ||
+ i915->hti_state & HDPORT_PHY_USED_HDMI(phy));
+}
+
+static enum hpd_pin tgl_hpd_pin(struct drm_i915_private *dev_priv,
+ enum port port)
+{
+ if (port >= PORT_D)
+ return HPD_PORT_TC1 + port - PORT_D;
+ else
+ return HPD_PORT_A + port - PORT_A;
+}
+
+static enum hpd_pin rkl_hpd_pin(struct drm_i915_private *dev_priv,
+ enum port port)
+{
+ if (HAS_PCH_TGP(dev_priv))
+ return tgl_hpd_pin(dev_priv, port);
+
+ if (port >= PORT_D)
+ return HPD_PORT_C + port - PORT_D;
+ else
+ return HPD_PORT_A + port - PORT_A;
+}
+
+static enum hpd_pin icl_hpd_pin(struct drm_i915_private *dev_priv,
+ enum port port)
+{
+ if (port >= PORT_C)
+ return HPD_PORT_TC1 + port - PORT_C;
+ else
+ return HPD_PORT_A + port - PORT_A;
+}
+
+static enum hpd_pin ehl_hpd_pin(struct drm_i915_private *dev_priv,
+ enum port port)
+{
+ if (port == PORT_D)
+ return HPD_PORT_A;
+
+ if (HAS_PCH_MCC(dev_priv))
+ return icl_hpd_pin(dev_priv, port);
+
+ return HPD_PORT_A + port - PORT_A;
+}
+
+static enum hpd_pin cnl_hpd_pin(struct drm_i915_private *dev_priv,
+ enum port port)
+{
+ if (port == PORT_F)
+ return HPD_PORT_E;
+
+ return HPD_PORT_A + port - PORT_A;
+}
+
void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
{
struct intel_digital_port *dig_port;
@@ -4885,6 +5032,18 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
bool init_hdmi, init_dp, init_lspcon = false;
enum phy phy = intel_port_to_phy(dev_priv, port);
+ /*
+ * On platforms with HTI (aka HDPORT), if it's enabled at boot it may
+ * have taken over some of the PHYs and made them unavailable to the
+ * driver. In that case we should skip initializing the corresponding
+ * outputs.
+ */
+ if (hti_uses_phy(dev_priv, phy)) {
+ drm_dbg_kms(&dev_priv->drm, "PORT %c / PHY %c reserved by HTI\n",
+ port_name(port), phy_name(phy));
+ return;
+ }
+
init_hdmi = intel_bios_port_supports_dvi(dev_priv, port) ||
intel_bios_port_supports_hdmi(dev_priv, port);
init_dp = intel_bios_port_supports_dp(dev_priv, port);
@@ -4918,6 +5077,9 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
drm_encoder_init(&dev_priv->drm, &encoder->base, &intel_ddi_funcs,
DRM_MODE_ENCODER_TMDS, "DDI %c", port_name(port));
+ mutex_init(&dig_port->hdcp_mutex);
+ dig_port->num_hdcp_streams = 0;
+
encoder->hotplug = intel_ddi_hotplug;
encoder->compute_output_type = intel_ddi_compute_output_type;
encoder->compute_config = intel_ddi_compute_config;
@@ -4939,6 +5101,19 @@ void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
encoder->cloneable = 0;
encoder->pipe_mask = ~0;
+ if (IS_ROCKETLAKE(dev_priv))
+ encoder->hpd_pin = rkl_hpd_pin(dev_priv, port);
+ else if (INTEL_GEN(dev_priv) >= 12)
+ encoder->hpd_pin = tgl_hpd_pin(dev_priv, port);
+ else if (IS_ELKHARTLAKE(dev_priv))
+ encoder->hpd_pin = ehl_hpd_pin(dev_priv, port);
+ else if (IS_GEN(dev_priv, 11))
+ encoder->hpd_pin = icl_hpd_pin(dev_priv, port);
+ else if (IS_GEN(dev_priv, 10))
+ encoder->hpd_pin = cnl_hpd_pin(dev_priv, port);
+ else
+ encoder->hpd_pin = intel_hpd_pin_default(dev_priv, port);
+
if (INTEL_GEN(dev_priv) >= 11)
dig_port->saved_port_bits =
intel_de_read(dev_priv, DDI_BUF_CTL(port))
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-15 18:14:09 +0000