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path: root/drivers/gpu/drm/i915/display/intel_dp.c
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Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp.c')
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp.c62
1 files changed, 39 insertions, 23 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 5eeafa45831a..c61ac0c3acb5 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -1179,18 +1179,20 @@ intel_dp_aux_wait_done(struct intel_dp *intel_dp)
{
struct drm_i915_private *i915 = dp_to_i915(intel_dp);
i915_reg_t ch_ctl = intel_dp->aux_ch_ctl_reg(intel_dp);
+ const unsigned int timeout_ms = 10;
u32 status;
bool done;
#define C (((status = intel_uncore_read_notrace(&i915->uncore, ch_ctl)) & DP_AUX_CH_CTL_SEND_BUSY) == 0)
done = wait_event_timeout(i915->gmbus_wait_queue, C,
- msecs_to_jiffies_timeout(10));
+ msecs_to_jiffies_timeout(timeout_ms));
/* just trace the final value */
trace_i915_reg_rw(false, ch_ctl, status, sizeof(status), true);
if (!done)
- DRM_ERROR("dp aux hw did not signal timeout!\n");
+ DRM_ERROR("%s did not complete or timeout within %ums (status 0x%08x)\n",
+ intel_dp->aux.name, timeout_ms, status);
#undef C
return status;
@@ -1291,6 +1293,9 @@ static u32 skl_get_aux_send_ctl(struct intel_dp *intel_dp,
u32 unused)
{
struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
+ struct drm_i915_private *i915 =
+ to_i915(intel_dig_port->base.base.dev);
+ enum phy phy = intel_port_to_phy(i915, intel_dig_port->base.port);
u32 ret;
ret = DP_AUX_CH_CTL_SEND_BUSY |
@@ -1303,7 +1308,8 @@ static u32 skl_get_aux_send_ctl(struct intel_dp *intel_dp,
DP_AUX_CH_CTL_FW_SYNC_PULSE_SKL(32) |
DP_AUX_CH_CTL_SYNC_PULSE_SKL(32);
- if (intel_dig_port->tc_mode == TC_PORT_TBT_ALT)
+ if (intel_phy_is_tc(i915, phy) &&
+ intel_dig_port->tc_mode == TC_PORT_TBT_ALT)
ret |= DP_AUX_CH_CTL_TBT_IO;
return ret;
@@ -1888,6 +1894,9 @@ static bool intel_dp_source_supports_dsc(struct intel_dp *intel_dp,
{
struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+ if (!INTEL_INFO(dev_priv)->display.has_dsc)
+ return false;
+
/* On TGL, DSC is supported on all Pipes */
if (INTEL_GEN(dev_priv) >= 12)
return true;
@@ -2080,10 +2089,10 @@ static int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
pipe_config->lane_count = limits->max_lane_count;
if (intel_dp_is_edp(intel_dp)) {
- pipe_config->dsc_params.compressed_bpp =
+ pipe_config->dsc.compressed_bpp =
min_t(u16, drm_edp_dsc_sink_output_bpp(intel_dp->dsc_dpcd) >> 4,
pipe_config->pipe_bpp);
- pipe_config->dsc_params.slice_count =
+ pipe_config->dsc.slice_count =
drm_dp_dsc_sink_max_slice_count(intel_dp->dsc_dpcd,
true);
} else {
@@ -2104,10 +2113,10 @@ static int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
DRM_DEBUG_KMS("Compressed BPP/Slice Count not supported\n");
return -EINVAL;
}
- pipe_config->dsc_params.compressed_bpp = min_t(u16,
+ pipe_config->dsc.compressed_bpp = min_t(u16,
dsc_max_output_bpp >> 4,
pipe_config->pipe_bpp);
- pipe_config->dsc_params.slice_count = dsc_dp_slice_count;
+ pipe_config->dsc.slice_count = dsc_dp_slice_count;
}
/*
* VDSC engine operates at 1 Pixel per clock, so if peak pixel rate
@@ -2115,8 +2124,8 @@ static int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
* then we need to use 2 VDSC instances.
*/
if (adjusted_mode->crtc_clock > dev_priv->max_cdclk_freq) {
- if (pipe_config->dsc_params.slice_count > 1) {
- pipe_config->dsc_params.dsc_split = true;
+ if (pipe_config->dsc.slice_count > 1) {
+ pipe_config->dsc.dsc_split = true;
} else {
DRM_DEBUG_KMS("Cannot split stream to use 2 VDSC instances\n");
return -EINVAL;
@@ -2128,16 +2137,16 @@ static int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
DRM_DEBUG_KMS("Cannot compute valid DSC parameters for Input Bpp = %d "
"Compressed BPP = %d\n",
pipe_config->pipe_bpp,
- pipe_config->dsc_params.compressed_bpp);
+ pipe_config->dsc.compressed_bpp);
return ret;
}
- pipe_config->dsc_params.compression_enable = true;
+ pipe_config->dsc.compression_enable = true;
DRM_DEBUG_KMS("DP DSC computed with Input Bpp = %d "
"Compressed Bpp = %d Slice Count = %d\n",
pipe_config->pipe_bpp,
- pipe_config->dsc_params.compressed_bpp,
- pipe_config->dsc_params.slice_count);
+ pipe_config->dsc.compressed_bpp,
+ pipe_config->dsc.slice_count);
return 0;
}
@@ -2211,15 +2220,15 @@ intel_dp_compute_link_config(struct intel_encoder *encoder,
return ret;
}
- if (pipe_config->dsc_params.compression_enable) {
+ if (pipe_config->dsc.compression_enable) {
DRM_DEBUG_KMS("DP lane count %d clock %d Input bpp %d Compressed bpp %d\n",
pipe_config->lane_count, pipe_config->port_clock,
pipe_config->pipe_bpp,
- pipe_config->dsc_params.compressed_bpp);
+ pipe_config->dsc.compressed_bpp);
DRM_DEBUG_KMS("DP link rate required %i available %i\n",
intel_dp_link_required(adjusted_mode->crtc_clock,
- pipe_config->dsc_params.compressed_bpp),
+ pipe_config->dsc.compressed_bpp),
intel_dp_max_data_rate(pipe_config->port_clock,
pipe_config->lane_count));
} else {
@@ -2377,8 +2386,8 @@ intel_dp_compute_config(struct intel_encoder *encoder,
pipe_config->limited_color_range =
intel_dp_limited_color_range(pipe_config, conn_state);
- if (pipe_config->dsc_params.compression_enable)
- output_bpp = pipe_config->dsc_params.compressed_bpp;
+ if (pipe_config->dsc.compression_enable)
+ output_bpp = pipe_config->dsc.compressed_bpp;
else
output_bpp = intel_dp_output_bpp(pipe_config, pipe_config->pipe_bpp);
@@ -3102,7 +3111,7 @@ void intel_dp_sink_set_decompression_state(struct intel_dp *intel_dp,
{
int ret;
- if (!crtc_state->dsc_params.compression_enable)
+ if (!crtc_state->dsc.compression_enable)
return;
ret = drm_dp_dpcd_writeb(&intel_dp->aux, DP_DSC_ENABLE,
@@ -5688,6 +5697,12 @@ out:
if (status != connector_status_connected && !intel_dp->is_mst)
intel_dp_unset_edid(intel_dp);
+ /*
+ * Make sure the refs for power wells enabled during detect are
+ * dropped to avoid a new detect cycle triggered by HPD polling.
+ */
+ intel_display_power_flush_work(dev_priv);
+
return status;
}
@@ -7560,11 +7575,11 @@ bool intel_dp_init(struct drm_i915_private *dev_priv,
intel_encoder->power_domain = intel_port_to_power_domain(port);
if (IS_CHERRYVIEW(dev_priv)) {
if (port == PORT_D)
- intel_encoder->crtc_mask = BIT(PIPE_C);
+ intel_encoder->pipe_mask = BIT(PIPE_C);
else
- intel_encoder->crtc_mask = BIT(PIPE_A) | BIT(PIPE_B);
+ intel_encoder->pipe_mask = BIT(PIPE_A) | BIT(PIPE_B);
} else {
- intel_encoder->crtc_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C);
+ intel_encoder->pipe_mask = ~0;
}
intel_encoder->cloneable = 0;
intel_encoder->port = port;
@@ -7625,7 +7640,8 @@ void intel_dp_mst_resume(struct drm_i915_private *dev_priv)
if (!intel_dp->can_mst)
continue;
- ret = drm_dp_mst_topology_mgr_resume(&intel_dp->mst_mgr);
+ ret = drm_dp_mst_topology_mgr_resume(&intel_dp->mst_mgr,
+ true);
if (ret) {
intel_dp->is_mst = false;
drm_dp_mst_topology_mgr_set_mst(&intel_dp->mst_mgr,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.