From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> 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. v2: Reintroduce iCLKIP WARN Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/display/intel_crt.c | 3 + drivers/gpu/drm/i915/display/intel_dpll.c | 60 ++++++++++++++++++- drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 24 +++++++- .../gpu/drm/i915/display/intel_pch_refclk.c | 10 ++++ .../gpu/drm/i915/display/intel_pch_refclk.h | 1 + 5 files changed, 94 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_crt.c b/drivers/gpu/drm/i915/display/intel_crt.c index 6a3893c8ff22..a225af030ad7 100644 --- a/drivers/gpu/drm/i915/display/intel_crt.c +++ b/drivers/gpu/drm/i915/display/intel_crt.c @@ -46,6 +46,7 @@ #include "intel_gmbus.h" #include "intel_hotplug.h" #include "intel_pch_display.h" +#include "intel_pch_refclk.h" /* Here's the desired hotplug mode */ #define ADPA_HOTPLUG_BITS (ADPA_CRT_HOTPLUG_PERIOD_128 | \ @@ -444,6 +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 69dc018385db..cffce8b86d64 100644 --- a/drivers/gpu/drm/i915/display/intel_dpll.c +++ b/drivers/gpu/drm/i915/display/intel_dpll.c @@ -938,12 +938,25 @@ 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 +982,15 @@ 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 +1116,7 @@ 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 +1153,14 @@ 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 +1226,13 @@ 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 +1252,13 @@ 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 +1301,9 @@ 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 +1337,9 @@ 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 +1373,9 @@ 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 +1411,9 @@ 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; } diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c index bfccc96f16fe..09816526c5e4 100644 --- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c +++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c @@ -949,6 +949,7 @@ 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; @@ -960,6 +961,9 @@ 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; } @@ -1723,6 +1727,9 @@ 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; } @@ -2275,11 +2282,20 @@ bxt_ddi_dp_set_dpll_hw_state(struct intel_crtc_state *crtc_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_compute_dpll(struct intel_atomic_state *state, @@ -3197,6 +3213,9 @@ 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 +3301,9 @@ 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 9934c8a9e240..55dfd37cb04e 100644 --- a/drivers/gpu/drm/i915/display/intel_pch_refclk.c +++ b/drivers/gpu/drm/i915/display/intel_pch_refclk.c @@ -167,6 +167,15 @@ 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) { @@ -179,6 +188,7 @@ void lpt_program_iclkip(const struct intel_crtc_state *crtc_state) lpt_disable_iclkip(dev_priv); lpt_compute_iclkip(&p, clock); + drm_WARN_ON(&dev_priv->drm, lpt_iclkip_freq(&p) != clock); /* This should not happen with any sane values */ drm_WARN_ON(&dev_priv->drm, SBI_SSCDIVINTPHASE_DIVSEL(p.divsel) & 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