From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Make things a bit more explicit by splitting
intel_cpu_transcoder_set_m_n() into separate variants for M1/N1 vs.
M2/N2. Makes the DRRS M/N programming at least more obvious.
Note that for the MST and DRRS cases we don't need to call the
M2/N2 variant at all since the transcoders that support those
do not have the M2/N2 registers.
Same could be said for i9xx_crtc_enable() but I want to do a
higher level code sharing between that valleyview_crtc_enable()
later in which case we do need the M2/N2 variant. This is also
why I keep the transcoder_has_m2_n2() in intel_cpu_transcoder_set_m2_n2()
so the caller doesn't have necessarily care what the chosen
transcoder supports.
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_ddi.c | 7 +-
drivers/gpu/drm/i915/display/intel_display.c | 75 +++++++++++---------
drivers/gpu/drm/i915/display/intel_display.h | 7 +-
drivers/gpu/drm/i915/display/intel_dp_mst.c | 5 +-
drivers/gpu/drm/i915/display/intel_drrs.c | 5 +-
5 files changed, 54 insertions(+), 45 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 2eb868eaab8f..dead4b72719f 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -2510,9 +2510,10 @@ static void intel_ddi_pre_enable_dp(struct intel_atomic_state *state,
if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DP_MST)) {
intel_ddi_set_dp_msa(crtc_state, conn_state);
- intel_cpu_transcoder_set_m_n(crtc_state,
- &crtc_state->dp_m_n,
- &crtc_state->dp_m2_n2);
+ intel_cpu_transcoder_set_m1_n1(crtc_state,
+ &crtc_state->dp_m_n);
+ intel_cpu_transcoder_set_m2_n2(crtc_state,
+ &crtc_state->dp_m2_n2);
}
}
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 25681197fd41..13355e8778f8 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -1835,21 +1835,23 @@ static void ilk_crtc_enable(struct intel_atomic_state *state,
intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, false);
if (intel_crtc_has_dp_encoder(new_crtc_state)) {
- if (new_crtc_state->has_pch_encoder)
+ if (new_crtc_state->has_pch_encoder) {
intel_pch_transcoder_set_m_n(new_crtc_state,
&new_crtc_state->dp_m_n);
- else
- intel_cpu_transcoder_set_m_n(new_crtc_state,
- &new_crtc_state->dp_m_n,
- &new_crtc_state->dp_m2_n2);
+ } else {
+ intel_cpu_transcoder_set_m1_n1(new_crtc_state,
+ &new_crtc_state->dp_m_n);
+ intel_cpu_transcoder_set_m2_n2(new_crtc_state,
+ &new_crtc_state->dp_m2_n2);
+ }
}
intel_set_transcoder_timings(new_crtc_state);
intel_set_pipe_src_size(new_crtc_state);
if (new_crtc_state->has_pch_encoder)
- intel_cpu_transcoder_set_m_n(new_crtc_state,
- &new_crtc_state->fdi_m_n, NULL);
+ intel_cpu_transcoder_set_m1_n1(new_crtc_state,
+ &new_crtc_state->fdi_m_n);
ilk_set_pipeconf(new_crtc_state);
@@ -2015,8 +2017,8 @@ static void hsw_configure_cpu_transcoder(const struct intel_crtc_state *crtc_sta
crtc_state->pixel_multiplier - 1);
if (crtc_state->has_pch_encoder)
- intel_cpu_transcoder_set_m_n(crtc_state,
- &crtc_state->fdi_m_n, NULL);
+ intel_cpu_transcoder_set_m1_n1(crtc_state,
+ &crtc_state->fdi_m_n);
hsw_set_frame_start_delay(crtc_state);
@@ -2455,10 +2457,12 @@ static void valleyview_crtc_enable(struct intel_atomic_state *state,
if (drm_WARN_ON(&dev_priv->drm, crtc->active))
return;
- if (intel_crtc_has_dp_encoder(new_crtc_state))
- intel_cpu_transcoder_set_m_n(new_crtc_state,
- &new_crtc_state->dp_m_n,
- &new_crtc_state->dp_m2_n2);
+ if (intel_crtc_has_dp_encoder(new_crtc_state)) {
+ intel_cpu_transcoder_set_m1_n1(new_crtc_state,
+ &new_crtc_state->dp_m_n);
+ intel_cpu_transcoder_set_m2_n2(new_crtc_state,
+ &new_crtc_state->dp_m2_n2);
+ }
intel_set_transcoder_timings(new_crtc_state);
intel_set_pipe_src_size(new_crtc_state);
@@ -2509,10 +2513,12 @@ static void i9xx_crtc_enable(struct intel_atomic_state *state,
if (drm_WARN_ON(&dev_priv->drm, crtc->active))
return;
- if (intel_crtc_has_dp_encoder(new_crtc_state))
- intel_cpu_transcoder_set_m_n(new_crtc_state,
- &new_crtc_state->dp_m_n,
- &new_crtc_state->dp_m2_n2);
+ if (intel_crtc_has_dp_encoder(new_crtc_state)) {
+ intel_cpu_transcoder_set_m1_n1(new_crtc_state,
+ &new_crtc_state->dp_m_n);
+ intel_cpu_transcoder_set_m2_n2(new_crtc_state,
+ &new_crtc_state->dp_m2_n2);
+ }
intel_set_transcoder_timings(new_crtc_state);
intel_set_pipe_src_size(new_crtc_state);
@@ -3159,34 +3165,37 @@ static bool transcoder_has_m2_n2(struct drm_i915_private *dev_priv,
return DISPLAY_VER(dev_priv) == 7 || IS_CHERRYVIEW(dev_priv);
}
-void intel_cpu_transcoder_set_m_n(const struct intel_crtc_state *crtc_state,
- const struct intel_link_m_n *m_n,
- const struct intel_link_m_n *m2_n2)
+void intel_cpu_transcoder_set_m1_n1(const struct intel_crtc_state *crtc_state,
+ const struct intel_link_m_n *m_n)
{
struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
enum pipe pipe = crtc->pipe;
enum transcoder transcoder = crtc_state->cpu_transcoder;
- if (DISPLAY_VER(dev_priv) >= 5) {
+ if (DISPLAY_VER(dev_priv) >= 5)
intel_set_m_n(dev_priv, m_n,
PIPE_DATA_M1(transcoder), PIPE_DATA_N1(transcoder),
PIPE_LINK_M1(transcoder), PIPE_LINK_N1(transcoder));
- /*
- * M2_N2 registers are set only if DRRS is supported
- * (to make sure the registers are not unnecessarily accessed).
- */
- if (m2_n2 && crtc_state->has_drrs &&
- transcoder_has_m2_n2(dev_priv, transcoder)) {
- intel_set_m_n(dev_priv, m2_n2,
- PIPE_DATA_M2(transcoder), PIPE_DATA_N2(transcoder),
- PIPE_LINK_M2(transcoder), PIPE_LINK_N2(transcoder));
- }
- } else {
+ else
intel_set_m_n(dev_priv, m_n,
PIPE_DATA_M_G4X(pipe), PIPE_DATA_N_G4X(pipe),
PIPE_LINK_M_G4X(pipe), PIPE_LINK_N_G4X(pipe));
- }
+}
+
+void intel_cpu_transcoder_set_m2_n2(const struct intel_crtc_state *crtc_state,
+ const struct intel_link_m_n *m_n)
+{
+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ enum transcoder transcoder = crtc_state->cpu_transcoder;
+
+ if (!transcoder_has_m2_n2(dev_priv, transcoder))
+ return;
+
+ intel_set_m_n(dev_priv, m_n,
+ PIPE_DATA_M2(transcoder), PIPE_DATA_N2(transcoder),
+ PIPE_LINK_M2(transcoder), PIPE_LINK_N2(transcoder));
}
static void intel_set_transcoder_timings(const struct intel_crtc_state *crtc_state)
diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index 2747a7f2c6cd..036e28581019 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -604,9 +604,10 @@ bool intel_fuzzy_clock_check(int clock1, int clock2);
void intel_display_prepare_reset(struct drm_i915_private *dev_priv);
void intel_display_finish_reset(struct drm_i915_private *dev_priv);
-void intel_cpu_transcoder_set_m_n(const struct intel_crtc_state *crtc_state,
- const struct intel_link_m_n *m_n,
- const struct intel_link_m_n *m2_n2);
+void intel_cpu_transcoder_set_m1_n1(const struct intel_crtc_state *crtc_state,
+ const struct intel_link_m_n *m_n);
+void intel_cpu_transcoder_set_m2_n2(const struct intel_crtc_state *crtc_state,
+ const struct intel_link_m_n *m_n);
void intel_cpu_transcoder_get_m_n(struct intel_crtc *crtc,
enum transcoder cpu_transcoder,
struct intel_link_m_n *m_n,
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 7031bd786822..4e8d65fa6086 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -523,9 +523,8 @@ static void intel_mst_pre_enable_dp(struct intel_atomic_state *state,
intel_ddi_set_dp_msa(pipe_config, conn_state);
- intel_cpu_transcoder_set_m_n(pipe_config,
- &pipe_config->dp_m_n,
- &pipe_config->dp_m2_n2);
+ intel_cpu_transcoder_set_m1_n1(pipe_config,
+ &pipe_config->dp_m_n);
}
static void intel_mst_enable_dp(struct intel_atomic_state *state,
diff --git a/drivers/gpu/drm/i915/display/intel_drrs.c b/drivers/gpu/drm/i915/display/intel_drrs.c
index c978badbc82f..a911066c7809 100644
--- a/drivers/gpu/drm/i915/display/intel_drrs.c
+++ b/drivers/gpu/drm/i915/display/intel_drrs.c
@@ -115,9 +115,8 @@ static void
intel_drrs_set_refresh_rate_m_n(const struct intel_crtc_state *crtc_state,
enum drrs_refresh_rate_type refresh_type)
{
- intel_cpu_transcoder_set_m_n(crtc_state, refresh_type == DRRS_LOW_RR ?
- &crtc_state->dp_m2_n2 : &crtc_state->dp_m_n,
- NULL);
+ intel_cpu_transcoder_set_m1_n1(crtc_state, refresh_type == DRRS_LOW_RR ?
+ &crtc_state->dp_m2_n2 : &crtc_state->dp_m_n);
}
static void intel_drrs_set_state(struct drm_i915_private *dev_priv,
--
2.34.1
