From 13ad2dbff1b6591b4ce773cf4654ad2923023351 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Mon, 18 Oct 2021 18:35:25 +0300
Subject: drm/i915: Move LPT PCH readout code
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Git-commit: f45d2252ee10b036d539d93a752a2434a54a0d2b
Patch-mainline: v5.17-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
Nuke the hsw_get_ddi_port_state() eyesore by putting the
readout code into intel_pch_display.c, and calling it directly
from hsw_crt_get_config().
Note that the nuked TRANS_DDI_FUNC_CTL readout from
hsw_get_ddi_port_state() is now etirely redundant since we
get called from the encoder->get_config() so we already know
we're dealing with the correct DDI port. Previously the
code was called from a place where that wasn't known so
it had to checked manually.
v2: Clarify the TRANS_DDI_FUNC_CTL change (Dave)
Nuke the now unused *TRANS_DDI_FUNC_CTL_VAL_TO_PORT() (Dave)
Cc: Dave Airlie <airlied@redhat.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211018153525.21597-1-ville.syrjala@linux.intel.com
Reviewed-by: Dave Airlie <airlied@redhat.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/i915/display/intel_crt.c | 2 +
drivers/gpu/drm/i915/display/intel_display.c | 46 ++-----------------
drivers/gpu/drm/i915/display/intel_display.h | 2 +
.../gpu/drm/i915/display/intel_pch_display.c | 18 ++++++++
.../gpu/drm/i915/display/intel_pch_display.h | 1 +
drivers/gpu/drm/i915/i915_reg.h | 2 -
6 files changed, 26 insertions(+), 45 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_crt.c b/drivers/gpu/drm/i915/display/intel_crt.c
index 4038ae342ea1..03cfae46f92f 100644
--- a/drivers/gpu/drm/i915/display/intel_crt.c
+++ b/drivers/gpu/drm/i915/display/intel_crt.c
@@ -147,6 +147,8 @@ static void hsw_crt_get_config(struct intel_encoder *encoder,
{
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+ lpt_pch_get_config(pipe_config);
+
hsw_ddi_get_config(encoder, pipe_config);
pipe_config->hw.adjusted_mode.flags &= ~(DRM_MODE_FLAG_PHSYNC |
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 8e1a225d1930..30a82c6ab7a2 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -4095,8 +4095,8 @@ void intel_dp_get_m_n(struct intel_crtc *crtc,
&pipe_config->dp_m2_n2);
}
-static void ilk_get_fdi_m_n_config(struct intel_crtc *crtc,
- struct intel_crtc_state *pipe_config)
+void ilk_get_fdi_m_n_config(struct intel_crtc *crtc,
+ struct intel_crtc_state *pipe_config)
{
intel_cpu_transcoder_get_m_n(crtc, pipe_config->cpu_transcoder,
&pipe_config->fdi_m_n, NULL);
@@ -4491,45 +4491,6 @@ static bool bxt_get_dsi_transcoder_state(struct intel_crtc *crtc,
return transcoder_is_dsi(pipe_config->cpu_transcoder);
}
-static void hsw_get_ddi_port_state(struct intel_crtc *crtc,
- struct intel_crtc_state *pipe_config)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
- enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
- enum port port;
- u32 tmp;
-
- if (transcoder_is_dsi(cpu_transcoder)) {
- port = (cpu_transcoder == TRANSCODER_DSI_A) ?
- PORT_A : PORT_B;
- } else {
- tmp = intel_de_read(dev_priv,
- TRANS_DDI_FUNC_CTL(cpu_transcoder));
- if (!(tmp & TRANS_DDI_FUNC_ENABLE))
- return;
- if (DISPLAY_VER(dev_priv) >= 12)
- port = TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT(tmp);
- else
- port = TRANS_DDI_FUNC_CTL_VAL_TO_PORT(tmp);
- }
-
- /*
- * Haswell has only FDI/PCH transcoder A. It is which is connected to
- * DDI E. So just check whether this pipe is wired to DDI E and whether
- * the PCH transcoder is on.
- */
- if (DISPLAY_VER(dev_priv) < 9 &&
- (port == PORT_E) && intel_de_read(dev_priv, LPT_TRANSCONF) & TRANS_ENABLE) {
- pipe_config->has_pch_encoder = true;
-
- tmp = intel_de_read(dev_priv, FDI_RX_CTL(PIPE_A));
- pipe_config->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
- FDI_DP_PORT_WIDTH_SHIFT) + 1;
-
- ilk_get_fdi_m_n_config(crtc, pipe_config);
- }
-}
-
static bool hsw_get_pipe_config(struct intel_crtc *crtc,
struct intel_crtc_state *pipe_config)
{
@@ -4567,8 +4528,7 @@ static bool hsw_get_pipe_config(struct intel_crtc *crtc,
/* we cannot read out most state, so don't bother.. */
pipe_config->quirks |= PIPE_CONFIG_QUIRK_BIGJOINER_SLAVE;
} else if (!transcoder_is_dsi(pipe_config->cpu_transcoder) ||
- DISPLAY_VER(dev_priv) >= 11) {
- hsw_get_ddi_port_state(crtc, pipe_config);
+ DISPLAY_VER(dev_priv) >= 11) {
intel_get_transcoder_timings(crtc, pipe_config);
}
diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index 93c84f2174b5..5bc8d8913178 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -584,6 +584,8 @@ void intel_dp_get_m_n(struct intel_crtc *crtc,
struct intel_crtc_state *pipe_config);
void intel_dp_set_m_n(const struct intel_crtc_state *crtc_state,
enum link_m_n_set m_n);
+void ilk_get_fdi_m_n_config(struct intel_crtc *crtc,
+ struct intel_crtc_state *pipe_config);
int intel_dotclock_calculate(int link_freq, const struct intel_link_m_n *m_n);
bool hsw_crtc_state_ips_capable(const struct intel_crtc_state *crtc_state);
diff --git a/drivers/gpu/drm/i915/display/intel_pch_display.c b/drivers/gpu/drm/i915/display/intel_pch_display.c
index 22dbd94cc5fd..b4c6557ba8b9 100644
--- a/drivers/gpu/drm/i915/display/intel_pch_display.c
+++ b/drivers/gpu/drm/i915/display/intel_pch_display.c
@@ -366,3 +366,21 @@ void lpt_pch_enable(struct intel_atomic_state *state,
lpt_enable_pch_transcoder(dev_priv, cpu_transcoder);
}
+
+void lpt_pch_get_config(struct intel_crtc_state *crtc_state)
+{
+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
+ struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+ u32 tmp;
+
+ if ((intel_de_read(dev_priv, LPT_TRANSCONF) & TRANS_ENABLE) == 0)
+ return;
+
+ crtc_state->has_pch_encoder = true;
+
+ tmp = intel_de_read(dev_priv, FDI_RX_CTL(PIPE_A));
+ crtc_state->fdi_lanes = ((FDI_DP_PORT_WIDTH_MASK & tmp) >>
+ FDI_DP_PORT_WIDTH_SHIFT) + 1;
+
+ ilk_get_fdi_m_n_config(crtc, crtc_state);
+}
diff --git a/drivers/gpu/drm/i915/display/intel_pch_display.h b/drivers/gpu/drm/i915/display/intel_pch_display.h
index 7f9df2c13cf3..e0ff331c0bc6 100644
--- a/drivers/gpu/drm/i915/display/intel_pch_display.h
+++ b/drivers/gpu/drm/i915/display/intel_pch_display.h
@@ -18,5 +18,6 @@ void ilk_pch_enable(struct intel_atomic_state *state,
void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv);
void lpt_pch_enable(struct intel_atomic_state *state,
struct intel_crtc *crtc);
+void lpt_pch_get_config(struct intel_crtc_state *crtc_state);
#endif
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index c22785e5022c..749b043a3ee3 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -10212,8 +10212,6 @@ enum skl_power_gate {
#define TGL_TRANS_DDI_PORT_MASK (0xf << TGL_TRANS_DDI_PORT_SHIFT)
#define TRANS_DDI_SELECT_PORT(x) ((x) << TRANS_DDI_PORT_SHIFT)
#define TGL_TRANS_DDI_SELECT_PORT(x) (((x) + 1) << TGL_TRANS_DDI_PORT_SHIFT)
-#define TRANS_DDI_FUNC_CTL_VAL_TO_PORT(val) (((val) & TRANS_DDI_PORT_MASK) >> TRANS_DDI_PORT_SHIFT)
-#define TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT(val) ((((val) & TGL_TRANS_DDI_PORT_MASK) >> TGL_TRANS_DDI_PORT_SHIFT) - 1)
#define TRANS_DDI_MODE_SELECT_MASK (7 << 24)
#define TRANS_DDI_MODE_SELECT_HDMI (0 << 24)
#define TRANS_DDI_MODE_SELECT_DVI (1 << 24)
--
2.38.1