[Intel-gfx] [PATCH 5/9] drm/i915: Extract ilk_pch_get_config()
Ville Syrjala
ville.syrjala at linux.intel.com
Fri Oct 15 07:16:21 UTC 2021
From: Ville Syrjälä <ville.syrjala at linux.intel.com>
Pull the ilk+ PCH state readout into its own function and relocate
to the appropriate file.
The clock readout parts are perhaps a bit iffy since we depend
on the gmch DPLL readout code. But we can think about the clock
readout big picture later.
Cc: Dave Airlie <airlied at redhat.com>
Cc: Jani Nikula <jani.nikula at intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
drivers/gpu/drm/i915/display/intel_display.c | 72 ++-----------------
drivers/gpu/drm/i915/display/intel_display.h | 3 +-
.../gpu/drm/i915/display/intel_pch_display.c | 68 ++++++++++++++++++
.../gpu/drm/i915/display/intel_pch_display.h | 1 +
4 files changed, 75 insertions(+), 69 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 8f65b8b6a306..e8f15fb3ed07 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -113,11 +113,6 @@
#include "skl_universal_plane.h"
#include "vlv_sideband.h"
-static void i9xx_crtc_clock_get(struct intel_crtc *crtc,
- struct intel_crtc_state *pipe_config);
-static void ilk_pch_clock_get(struct intel_crtc *crtc,
- struct intel_crtc_state *pipe_config);
-
static void intel_set_transcoder_timings(const struct intel_crtc_state *crtc_state);
static void intel_set_pipe_src_size(const struct intel_crtc_state *crtc_state);
static void intel_cpu_transcoder_set_m_n(const struct intel_crtc_state *crtc_state,
@@ -4228,50 +4223,9 @@ static bool ilk_get_pipe_config(struct intel_crtc *crtc,
i9xx_get_pipe_color_config(pipe_config);
intel_color_get_config(pipe_config);
- if (intel_de_read(dev_priv, PCH_TRANSCONF(crtc->pipe)) & TRANS_ENABLE) {
- struct intel_shared_dpll *pll;
- enum intel_dpll_id pll_id;
- bool pll_active;
+ pipe_config->pixel_multiplier = 1;
- pipe_config->has_pch_encoder = true;
-
- tmp = intel_de_read(dev_priv, FDI_RX_CTL(crtc->pipe));
- 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);
-
- if (HAS_PCH_IBX(dev_priv)) {
- /*
- * The pipe->pch transcoder and pch transcoder->pll
- * mapping is fixed.
- */
- pll_id = (enum intel_dpll_id) crtc->pipe;
- } else {
- tmp = intel_de_read(dev_priv, PCH_DPLL_SEL);
- if (tmp & TRANS_DPLLB_SEL(crtc->pipe))
- pll_id = DPLL_ID_PCH_PLL_B;
- else
- pll_id= DPLL_ID_PCH_PLL_A;
- }
-
- pipe_config->shared_dpll =
- intel_get_shared_dpll_by_id(dev_priv, pll_id);
- pll = pipe_config->shared_dpll;
-
- pll_active = intel_dpll_get_hw_state(dev_priv, pll,
- &pipe_config->dpll_hw_state);
- drm_WARN_ON(dev, !pll_active);
-
- tmp = pipe_config->dpll_hw_state.dpll;
- pipe_config->pixel_multiplier =
- ((tmp & PLL_REF_SDVO_HDMI_MULTIPLIER_MASK)
- >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT) + 1;
-
- ilk_pch_clock_get(crtc, pipe_config);
- } else {
- pipe_config->pixel_multiplier = 1;
- }
+ ilk_pch_get_config(pipe_config);
intel_get_transcoder_timings(crtc, pipe_config);
intel_get_pipe_src_size(crtc, pipe_config);
@@ -4854,8 +4808,8 @@ static int i9xx_pll_refclk(struct drm_device *dev,
}
/* Returns the clock of the currently programmed mode of the given pipe. */
-static void i9xx_crtc_clock_get(struct intel_crtc *crtc,
- struct intel_crtc_state *pipe_config)
+void i9xx_crtc_clock_get(struct intel_crtc *crtc,
+ struct intel_crtc_state *pipe_config)
{
struct drm_device *dev = crtc->base.dev;
struct drm_i915_private *dev_priv = to_i915(dev);
@@ -4965,24 +4919,6 @@ int intel_dotclock_calculate(int link_freq,
return div_u64(mul_u32_u32(m_n->link_m, link_freq), m_n->link_n);
}
-static void ilk_pch_clock_get(struct intel_crtc *crtc,
- struct intel_crtc_state *pipe_config)
-{
- struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-
- /* read out port_clock from the DPLL */
- i9xx_crtc_clock_get(crtc, pipe_config);
-
- /*
- * In case there is an active pipe without active ports,
- * we may need some idea for the dotclock anyway.
- * Calculate one based on the FDI configuration.
- */
- pipe_config->hw.adjusted_mode.crtc_clock =
- intel_dotclock_calculate(intel_fdi_link_freq(dev_priv, pipe_config),
- &pipe_config->fdi_m_n);
-}
-
/* Returns the currently programmed mode of the given encoder. */
struct drm_display_mode *
intel_encoder_current_mode(struct intel_encoder *encoder)
diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index 5bc8d8913178..c2efba7c6c17 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -586,8 +586,9 @@ 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);
+void i9xx_crtc_clock_get(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);
void hsw_enable_ips(const struct intel_crtc_state *crtc_state);
void hsw_disable_ips(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 df7195ed1aaa..f3edabdd0a4c 100644
--- a/drivers/gpu/drm/i915/display/intel_pch_display.c
+++ b/drivers/gpu/drm/i915/display/intel_pch_display.c
@@ -299,6 +299,74 @@ void ilk_pch_enable(struct intel_atomic_state *state,
ilk_enable_pch_transcoder(crtc_state);
}
+static void ilk_pch_clock_get(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);
+
+ /* read out port_clock from the DPLL */
+ i9xx_crtc_clock_get(crtc, crtc_state);
+
+ /*
+ * In case there is an active pipe without active ports,
+ * we may need some idea for the dotclock anyway.
+ * Calculate one based on the FDI configuration.
+ */
+ crtc_state->hw.adjusted_mode.crtc_clock =
+ intel_dotclock_calculate(intel_fdi_link_freq(dev_priv, crtc_state),
+ &crtc_state->fdi_m_n);
+}
+
+void ilk_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);
+ struct intel_shared_dpll *pll;
+ enum pipe pipe = crtc->pipe;
+ enum intel_dpll_id pll_id;
+ bool pll_active;
+ u32 tmp;
+
+ if ((intel_de_read(dev_priv, PCH_TRANSCONF(pipe)) & TRANS_ENABLE) == 0)
+ return;
+
+ crtc_state->has_pch_encoder = true;
+
+ tmp = intel_de_read(dev_priv, FDI_RX_CTL(pipe));
+ 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);
+
+ if (HAS_PCH_IBX(dev_priv)) {
+ /*
+ * The pipe->pch transcoder and pch transcoder->pll
+ * mapping is fixed.
+ */
+ pll_id = (enum intel_dpll_id) pipe;
+ } else {
+ tmp = intel_de_read(dev_priv, PCH_DPLL_SEL);
+ if (tmp & TRANS_DPLLB_SEL(pipe))
+ pll_id = DPLL_ID_PCH_PLL_B;
+ else
+ pll_id = DPLL_ID_PCH_PLL_A;
+ }
+
+ crtc_state->shared_dpll = intel_get_shared_dpll_by_id(dev_priv, pll_id);
+ pll = crtc_state->shared_dpll;
+
+ pll_active = intel_dpll_get_hw_state(dev_priv, pll,
+ &crtc_state->dpll_hw_state);
+ drm_WARN_ON(&dev_priv->drm, !pll_active);
+
+ tmp = crtc_state->dpll_hw_state.dpll;
+ crtc_state->pixel_multiplier =
+ ((tmp & PLL_REF_SDVO_HDMI_MULTIPLIER_MASK)
+ >> PLL_REF_SDVO_HDMI_MULTIPLIER_SHIFT) + 1;
+
+ ilk_pch_clock_get(crtc_state);
+}
+
static void lpt_enable_pch_transcoder(struct drm_i915_private *dev_priv,
enum transcoder cpu_transcoder)
{
diff --git a/drivers/gpu/drm/i915/display/intel_pch_display.h b/drivers/gpu/drm/i915/display/intel_pch_display.h
index e0ff331c0bc6..6e834fbebd64 100644
--- a/drivers/gpu/drm/i915/display/intel_pch_display.h
+++ b/drivers/gpu/drm/i915/display/intel_pch_display.h
@@ -14,6 +14,7 @@ struct intel_crtc_state;
void ilk_disable_pch_transcoder(struct intel_crtc *crtc);
void ilk_pch_enable(struct intel_atomic_state *state,
struct intel_crtc *crtc);
+void ilk_pch_get_config(struct intel_crtc_state *crtc_state);
void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv);
void lpt_pch_enable(struct intel_atomic_state *state,
--
2.32.0
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