From: Ville Syrjälä <ville.syrj...@linux.intel.com>
Fill port_clock and hw.adjusted_mode.crtc_clock with the actual
frequency we're going to be getting from the hardware. This will
let us accurately compute all derived state that depends on those.
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
drivers/gpu/drm/i915/display/intel_crt.c | 2 +
drivers/gpu/drm/i915/display/intel_dpll.c | 64 ++++++++++++++++++-
drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 36 ++++++++++-
.../gpu/drm/i915/display/intel_pch_refclk.c | 9 +++
.../gpu/drm/i915/display/intel_pch_refclk.h | 1 +
5 files changed, 108 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_crt.c
b/drivers/gpu/drm/i915/display/intel_crt.c
index d746c85e7e8c..a225af030ad7 100644
--- a/drivers/gpu/drm/i915/display/intel_crt.c
+++ b/drivers/gpu/drm/i915/display/intel_crt.c
@@ -445,6 +445,8 @@ static int hsw_crt_compute_config(struct intel_encoder
*encoder,
/* FDI must always be 2.7 GHz */
pipe_config->port_clock = 135000 * 2;
+ adjusted_mode->crtc_clock = lpt_iclkip(pipe_config);
+
return 0;
}
diff --git a/drivers/gpu/drm/i915/display/intel_dpll.c
b/drivers/gpu/drm/i915/display/intel_dpll.c
index afd30c6cc34c..4a9d7b6d16cc 100644
--- a/drivers/gpu/drm/i915/display/intel_dpll.c
+++ b/drivers/gpu/drm/i915/display/intel_dpll.c
@@ -930,6 +930,8 @@ static void i8xx_compute_dpll(struct intel_crtc_state
*crtc_state,
crtc_state->dpll_hw_state.dpll = dpll;
}
+int intel_crtc_dotclock(const struct intel_crtc_state *crtc_state);
+
static int hsw_crtc_compute_clock(struct intel_atomic_state *state,
struct intel_crtc *crtc)
{
@@ -938,12 +940,25 @@ static int hsw_crtc_compute_clock(struct
intel_atomic_state *state,
intel_atomic_get_new_crtc_state(state, crtc);
struct intel_encoder *encoder =
intel_get_crtc_new_encoder(state, crtc_state);
+ int ret;
if (DISPLAY_VER(dev_priv) < 11 &&
intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DSI))
return 0;
- return intel_compute_shared_dplls(state, crtc, encoder);
+ ret = intel_compute_shared_dplls(state, crtc, encoder);
+ if (ret)
+ return ret;
+
+ /* FIXME this is a mess */
+ if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DSI))
+ return 0;
+
+ /* CRT dotclock is determined via other means */
+ if (!crtc_state->has_pch_encoder)
+ crtc_state->hw.adjusted_mode.crtc_clock =
intel_crtc_dotclock(crtc_state);
+
+ return 0;
}
static int hsw_crtc_get_shared_dpll(struct intel_atomic_state *state,
@@ -969,8 +984,15 @@ static int dg2_crtc_compute_clock(struct
intel_atomic_state *state,
intel_atomic_get_new_crtc_state(state, crtc);
struct intel_encoder *encoder =
intel_get_crtc_new_encoder(state, crtc_state);
+ int ret;
- return intel_mpllb_calc_state(crtc_state, encoder);
+ ret = intel_mpllb_calc_state(crtc_state, encoder);
+ if (ret)
+ return ret;
+
+ crtc_state->hw.adjusted_mode.crtc_clock =
intel_crtc_dotclock(crtc_state);
+
+ return 0;
}
static bool ilk_needs_fb_cb_tune(const struct dpll *dpll, int factor)
@@ -1096,6 +1118,7 @@ static int ilk_crtc_compute_clock(struct
intel_atomic_state *state,
intel_atomic_get_new_crtc_state(state, crtc);
const struct intel_limit *limit;
int refclk = 120000;
+ int ret;
/* CPU eDP is the only output that doesn't need a PCH PLL of its own. */
if (!crtc_state->has_pch_encoder)
@@ -1132,7 +1155,14 @@ static int ilk_crtc_compute_clock(struct
intel_atomic_state *state,
ilk_compute_dpll(crtc_state, &crtc_state->dpll,
&crtc_state->dpll);
- return intel_compute_shared_dplls(state, crtc, NULL);
+ ret = intel_compute_shared_dplls(state, crtc, NULL);
+ if (ret)
+ return ret;
+
+ crtc_state->port_clock = crtc_state->dpll.dot;
+ crtc_state->hw.adjusted_mode.crtc_clock =
intel_crtc_dotclock(crtc_state);
+
+ return ret;
}
static int ilk_crtc_get_shared_dpll(struct intel_atomic_state *state,
@@ -1198,6 +1228,13 @@ static int chv_crtc_compute_clock(struct
intel_atomic_state *state,
chv_compute_dpll(crtc_state);
+ /* FIXME this is a mess */
+ if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DSI))
+ return 0;
+
+ crtc_state->port_clock = crtc_state->dpll.dot;
+ crtc_state->hw.adjusted_mode.crtc_clock =
intel_crtc_dotclock(crtc_state);
+
return 0;
}
@@ -1217,6 +1254,13 @@ static int vlv_crtc_compute_clock(struct
intel_atomic_state *state,
vlv_compute_dpll(crtc_state);
+ /* FIXME this is a mess */
+ if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_DSI))
+ return 0;
+
+ crtc_state->port_clock = crtc_state->dpll.dot;
+ crtc_state->hw.adjusted_mode.crtc_clock =
intel_crtc_dotclock(crtc_state);
+
return 0;
}
@@ -1259,6 +1303,9 @@ static int g4x_crtc_compute_clock(struct
intel_atomic_state *state,
i9xx_compute_dpll(crtc_state, &crtc_state->dpll,
&crtc_state->dpll);
+ crtc_state->port_clock = crtc_state->dpll.dot;
+ crtc_state->hw.adjusted_mode.crtc_clock =
intel_crtc_dotclock(crtc_state);
+
return 0;
}
@@ -1292,6 +1339,9 @@ static int pnv_crtc_compute_clock(struct
intel_atomic_state *state,
i9xx_compute_dpll(crtc_state, &crtc_state->dpll,
&crtc_state->dpll);
+ crtc_state->port_clock = crtc_state->dpll.dot;
+ crtc_state->hw.adjusted_mode.crtc_clock =
intel_crtc_dotclock(crtc_state);
+
return 0;
}
@@ -1325,6 +1375,9 @@ static int i9xx_crtc_compute_clock(struct
intel_atomic_state *state,
i9xx_compute_dpll(crtc_state, &crtc_state->dpll,
&crtc_state->dpll);
+ crtc_state->port_clock = crtc_state->dpll.dot;
+ crtc_state->hw.adjusted_mode.crtc_clock =
intel_crtc_dotclock(crtc_state);
+
return 0;
}
@@ -1360,6 +1413,9 @@ static int i8xx_crtc_compute_clock(struct
intel_atomic_state *state,
i8xx_compute_dpll(crtc_state, &crtc_state->dpll,
&crtc_state->dpll);
+ crtc_state->port_clock = crtc_state->dpll.dot;
+ crtc_state->hw.adjusted_mode.crtc_clock =
intel_crtc_dotclock(crtc_state);
+
return 0;
}
@@ -1401,6 +1457,8 @@ static const struct intel_dpll_funcs i8xx_dpll_funcs = {
.crtc_compute_clock = i8xx_crtc_compute_clock,
};
+int intel_calculate_dotclock(const struct intel_crtc_state *crtc_state);
+
int intel_dpll_crtc_compute_clock(struct intel_atomic_state *state,
struct intel_crtc *crtc)
{
diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
index 64708e874b13..416d78f9e140 100644
--- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
+++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
@@ -905,10 +905,15 @@ hsw_ddi_calculate_wrpll(int clock /* in Hz */,
*r2_out = best.r2;
}
+static int hsw_ddi_wrpll_get_freq(struct drm_i915_private *dev_priv,
+ const struct intel_shared_dpll *pll,
+ const struct intel_dpll_hw_state *pll_state);
+
static int
hsw_ddi_wrpll_compute_dpll(struct intel_atomic_state *state,
struct intel_crtc *crtc)
{
+ struct drm_i915_private *i915 = to_i915(state->base.dev);
struct intel_crtc_state *crtc_state =
intel_atomic_get_new_crtc_state(state, crtc);
unsigned int p, n2, r2;
@@ -920,6 +925,9 @@ hsw_ddi_wrpll_compute_dpll(struct intel_atomic_state *state,
WRPLL_DIVIDER_REFERENCE(r2) | WRPLL_DIVIDER_FEEDBACK(n2) |
WRPLL_DIVIDER_POST(p);
+ crtc_state->port_clock = hsw_ddi_wrpll_get_freq(i915, NULL,
+
&crtc_state->dpll_hw_state);
+
return 0;
}
@@ -1618,6 +1626,10 @@ skl_ddi_calculate_wrpll(int clock /* in Hz */,
return 0;
}
+static int skl_ddi_wrpll_get_freq(struct drm_i915_private *i915,
+ const struct intel_shared_dpll *pll,
+ const struct intel_dpll_hw_state *pll_state);
+
static int skl_ddi_hdmi_pll_dividers(struct intel_crtc_state *crtc_state)
{
struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
@@ -1652,6 +1664,9 @@ static int skl_ddi_hdmi_pll_dividers(struct
intel_crtc_state *crtc_state)
crtc_state->dpll_hw_state.cfgcr1 = cfgcr1;
crtc_state->dpll_hw_state.cfgcr2 = cfgcr2;
+ crtc_state->port_clock = skl_ddi_wrpll_get_freq(i915, NULL,
+
&crtc_state->dpll_hw_state);
+
return 0;
}
@@ -2255,14 +2270,27 @@ bxt_ddi_dp_set_dpll_hw_state(struct intel_crtc_state
*crtc_state)
return bxt_ddi_set_dpll_hw_state(crtc_state, &clk_div);
}
+static int bxt_ddi_pll_get_freq(struct drm_i915_private *i915,
+ const struct intel_shared_dpll *pll,
+ const struct intel_dpll_hw_state *pll_state);
+
static int
bxt_ddi_hdmi_set_dpll_hw_state(struct intel_crtc_state *crtc_state)
{
+ struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev);
struct dpll clk_div = {};
+ int ret;
bxt_ddi_hdmi_pll_dividers(crtc_state, &clk_div);
- return bxt_ddi_set_dpll_hw_state(crtc_state, &clk_div);
+ ret = bxt_ddi_set_dpll_hw_state(crtc_state, &clk_div);
+ if (ret)
+ return ret;
+
+ crtc_state->port_clock = bxt_ddi_pll_get_freq(i915, NULL,
+
&crtc_state->dpll_hw_state);
+
+ return 0;
}
static int bxt_ddi_pll_get_freq(struct drm_i915_private *i915,
@@ -3197,6 +3225,9 @@ static int icl_compute_combo_phy_dpll(struct
intel_atomic_state *state,
icl_calc_dpll_state(dev_priv, &pll_params, &port_dpll->hw_state);
+ crtc_state->port_clock = icl_ddi_combo_pll_get_freq(dev_priv, NULL,
+
&port_dpll->hw_state);
+
return 0;
}
@@ -3282,6 +3313,9 @@ static int icl_compute_tc_phy_dplls(struct
intel_atomic_state *state,
if (ret)
return ret;
+ crtc_state->port_clock = icl_ddi_mg_pll_get_freq(dev_priv, NULL,
+ &port_dpll->hw_state);
+
return 0;
}
diff --git a/drivers/gpu/drm/i915/display/intel_pch_refclk.c
b/drivers/gpu/drm/i915/display/intel_pch_refclk.c
index 6610160cf825..5fb7ead97c90 100644
--- a/drivers/gpu/drm/i915/display/intel_pch_refclk.c
+++ b/drivers/gpu/drm/i915/display/intel_pch_refclk.c
@@ -166,6 +166,15 @@ static void lpt_compute_iclkip(struct iclkip_params *p,
int clock)
}
}
+int lpt_iclkip(const struct intel_crtc_state *crtc_state)
+{
+ struct iclkip_params p;
+
+ lpt_compute_iclkip(&p, crtc_state->hw.adjusted_mode.crtc_clock);
+
+ return lpt_iclkip_freq(&p);
+}
+
/* Program iCLKIP clock to the desired frequency */
void lpt_program_iclkip(const struct intel_crtc_state *crtc_state)
{
diff --git a/drivers/gpu/drm/i915/display/intel_pch_refclk.h
b/drivers/gpu/drm/i915/display/intel_pch_refclk.h
index 12ab2c75a800..9bcf56629f24 100644
--- a/drivers/gpu/drm/i915/display/intel_pch_refclk.h
+++ b/drivers/gpu/drm/i915/display/intel_pch_refclk.h
@@ -14,6 +14,7 @@ struct intel_crtc_state;
void lpt_program_iclkip(const struct intel_crtc_state *crtc_state);
void lpt_disable_iclkip(struct drm_i915_private *dev_priv);
int lpt_get_iclkip(struct drm_i915_private *dev_priv);
+int lpt_iclkip(const struct intel_crtc_state *crtc_state);
void intel_init_pch_refclk(struct drm_i915_private *dev_priv);
void lpt_disable_clkout_dp(struct drm_i915_private *dev_priv);
--
2.35.1
