drm/i915: Add readout and state check for pch_pfit.force_thru
Convert the HSW pch_pfit.force_thru to a proper state variable
with readout and accompanying pipe conf check. Makes the logic
a bit more straightforward, and hopefully prevents some
breakage in the future.
'force_thru' is probably not the best name for this, but I
didn't manage to come up with anything better either, so I
left it alone.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190425162906.5242-2-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index cd5277d..0af47f3 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1779,9 +1779,7 @@
* eDP when not using the panel fitter, and when not
* using motion blur mitigation (which we don't
* support). */
- if (IS_HASWELL(dev_priv) &&
- (crtc_state->pch_pfit.enabled ||
- crtc_state->pch_pfit.force_thru))
+ if (crtc_state->pch_pfit.force_thru)
temp |= TRANS_DDI_EDP_INPUT_A_ONOFF;
else
temp |= TRANS_DDI_EDP_INPUT_A_ON;
@@ -3860,6 +3858,7 @@
struct intel_crtc_state *pipe_config,
struct drm_connector_state *conn_state)
{
+ struct intel_crtc *crtc = to_intel_crtc(pipe_config->base.crtc);
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
enum port port = encoder->port;
int ret;
@@ -3874,6 +3873,12 @@
if (ret)
return ret;
+ if (IS_HASWELL(dev_priv) && crtc->pipe == PIPE_A &&
+ pipe_config->cpu_transcoder == TRANSCODER_EDP)
+ pipe_config->pch_pfit.force_thru =
+ pipe_config->pch_pfit.enabled ||
+ pipe_config->crc_enabled;
+
if (IS_GEN9_LP(dev_priv))
pipe_config->lane_lat_optim_mask =
bxt_ddi_phy_calc_lane_lat_optim_mask(pipe_config->lane_count);
@@ -3881,7 +3886,6 @@
intel_ddi_compute_min_voltage_level(dev_priv, pipe_config);
return 0;
-
}
static void intel_ddi_encoder_suspend(struct intel_encoder *encoder)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index a57c988..2392f67 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -9652,6 +9652,7 @@
for_each_set_bit(panel_transcoder,
&panel_transcoder_mask,
ARRAY_SIZE(INTEL_INFO(dev_priv)->trans_offsets)) {
+ bool force_thru = false;
enum pipe trans_pipe;
tmp = I915_READ(TRANS_DDI_FUNC_CTL(panel_transcoder));
@@ -9673,6 +9674,8 @@
transcoder_name(panel_transcoder));
/* fall through */
case TRANS_DDI_EDP_INPUT_A_ONOFF:
+ force_thru = true;
+ /* fall through */
case TRANS_DDI_EDP_INPUT_A_ON:
trans_pipe = PIPE_A;
break;
@@ -9684,8 +9687,10 @@
break;
}
- if (trans_pipe == crtc->pipe)
+ if (trans_pipe == crtc->pipe) {
pipe_config->cpu_transcoder = panel_transcoder;
+ pipe_config->pch_pfit.force_thru = force_thru;
+ }
}
/*
@@ -11520,10 +11525,11 @@
pipe_config->gmch_pfit.pgm_ratios,
pipe_config->gmch_pfit.lvds_border_bits);
else
- DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s\n",
+ DRM_DEBUG_KMS("pch pfit: pos: 0x%08x, size: 0x%08x, %s, force thru: %s\n",
pipe_config->pch_pfit.pos,
pipe_config->pch_pfit.size,
- enableddisabled(pipe_config->pch_pfit.enabled));
+ enableddisabled(pipe_config->pch_pfit.enabled),
+ yesno(pipe_config->pch_pfit.force_thru));
DRM_DEBUG_KMS("ips: %i, double wide: %i\n",
pipe_config->ips_enabled, pipe_config->double_wide);
@@ -11645,7 +11651,6 @@
saved_state->scaler_state = crtc_state->scaler_state;
saved_state->shared_dpll = crtc_state->shared_dpll;
saved_state->dpll_hw_state = crtc_state->dpll_hw_state;
- saved_state->pch_pfit.force_thru = crtc_state->pch_pfit.force_thru;
saved_state->crc_enabled = crtc_state->crc_enabled;
if (IS_G4X(dev_priv) ||
IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
@@ -11937,7 +11942,6 @@
struct intel_crtc_state *pipe_config,
bool adjust)
{
- struct intel_crtc *crtc = to_intel_crtc(current_config->base.crtc);
bool ret = true;
bool fixup_inherited = adjust &&
(current_config->base.mode.private_flags & I915_MODE_FLAG_INHERITED) &&
@@ -12163,9 +12167,7 @@
* Changing the EDP transcoder input mux
* (A_ONOFF vs. A_ON) requires a full modeset.
*/
- if (IS_HASWELL(dev_priv) && crtc->pipe == PIPE_A &&
- current_config->cpu_transcoder == TRANSCODER_EDP)
- PIPE_CONF_CHECK_BOOL(pch_pfit.enabled);
+ PIPE_CONF_CHECK_BOOL(pch_pfit.force_thru);
if (!adjust) {
PIPE_CONF_CHECK_I(pipe_src_w);
diff --git a/drivers/gpu/drm/i915/intel_pipe_crc.c b/drivers/gpu/drm/i915/intel_pipe_crc.c
index 40f978a..1e2c4307 100644
--- a/drivers/gpu/drm/i915/intel_pipe_crc.c
+++ b/drivers/gpu/drm/i915/intel_pipe_crc.c
@@ -314,17 +314,8 @@
if (IS_HASWELL(dev_priv) &&
pipe_config->base.active && crtc->pipe == PIPE_A &&
- pipe_config->cpu_transcoder == TRANSCODER_EDP) {
- bool old_need_power_well = pipe_config->pch_pfit.enabled ||
- pipe_config->pch_pfit.force_thru;
- bool new_need_power_well = pipe_config->pch_pfit.enabled ||
- enable;
-
- pipe_config->pch_pfit.force_thru = enable;
-
- if (old_need_power_well != new_need_power_well)
- pipe_config->base.connectors_changed = true;
- }
+ pipe_config->cpu_transcoder == TRANSCODER_EDP)
+ pipe_config->base.mode_changed = true;
ret = drm_atomic_commit(state);
