diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dpll_mgr.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 224 |
1 files changed, 127 insertions, 97 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c index bbe142056c7c..e5fb66a5dd02 100644 --- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c +++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c @@ -905,37 +905,6 @@ hsw_ddi_calculate_wrpll(int clock /* in Hz */, *r2_out = best.r2; } -static int -hsw_ddi_wrpll_compute_dpll(struct intel_atomic_state *state, - struct intel_crtc *crtc) -{ - struct intel_crtc_state *crtc_state = - intel_atomic_get_new_crtc_state(state, crtc); - unsigned int p, n2, r2; - - hsw_ddi_calculate_wrpll(crtc_state->port_clock * 1000, &r2, &n2, &p); - - crtc_state->dpll_hw_state.wrpll = - WRPLL_PLL_ENABLE | WRPLL_REF_LCPLL | - WRPLL_DIVIDER_REFERENCE(r2) | WRPLL_DIVIDER_FEEDBACK(n2) | - WRPLL_DIVIDER_POST(p); - - return 0; -} - -static struct intel_shared_dpll * -hsw_ddi_wrpll_get_dpll(struct intel_atomic_state *state, - struct intel_crtc *crtc) -{ - struct intel_crtc_state *crtc_state = - intel_atomic_get_new_crtc_state(state, crtc); - - return intel_find_shared_dpll(state, crtc, - &crtc_state->dpll_hw_state, - BIT(DPLL_ID_WRPLL2) | - BIT(DPLL_ID_WRPLL1)); -} - 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) @@ -977,6 +946,41 @@ static int hsw_ddi_wrpll_get_freq(struct drm_i915_private *dev_priv, } 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; + + hsw_ddi_calculate_wrpll(crtc_state->port_clock * 1000, &r2, &n2, &p); + + crtc_state->dpll_hw_state.wrpll = + WRPLL_PLL_ENABLE | WRPLL_REF_LCPLL | + 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; +} + +static struct intel_shared_dpll * +hsw_ddi_wrpll_get_dpll(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + struct intel_crtc_state *crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + + return intel_find_shared_dpll(state, crtc, + &crtc_state->dpll_hw_state, + BIT(DPLL_ID_WRPLL2) | + BIT(DPLL_ID_WRPLL1)); +} + +static int hsw_ddi_lcpll_compute_dpll(struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev); @@ -1618,43 +1622,6 @@ skip_remaining_dividers: return 0; } -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); - struct skl_wrpll_params wrpll_params = {}; - u32 ctrl1, cfgcr1, cfgcr2; - int ret; - - /* - * See comment in intel_dpll_hw_state to understand why we always use 0 - * as the DPLL id in this function. - */ - ctrl1 = DPLL_CTRL1_OVERRIDE(0); - - ctrl1 |= DPLL_CTRL1_HDMI_MODE(0); - - ret = skl_ddi_calculate_wrpll(crtc_state->port_clock * 1000, - i915->display.dpll.ref_clks.nssc, &wrpll_params); - if (ret) - return ret; - - cfgcr1 = DPLL_CFGCR1_FREQ_ENABLE | - DPLL_CFGCR1_DCO_FRACTION(wrpll_params.dco_fraction) | - wrpll_params.dco_integer; - - cfgcr2 = DPLL_CFGCR2_QDIV_RATIO(wrpll_params.qdiv_ratio) | - DPLL_CFGCR2_QDIV_MODE(wrpll_params.qdiv_mode) | - DPLL_CFGCR2_KDIV(wrpll_params.kdiv) | - DPLL_CFGCR2_PDIV(wrpll_params.pdiv) | - wrpll_params.central_freq; - - crtc_state->dpll_hw_state.ctrl1 = ctrl1; - crtc_state->dpll_hw_state.cfgcr1 = cfgcr1; - crtc_state->dpll_hw_state.cfgcr2 = cfgcr2; - - 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) @@ -1726,6 +1693,46 @@ static int skl_ddi_wrpll_get_freq(struct drm_i915_private *i915, return dco_freq / (p0 * p1 * p2 * 5); } +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); + struct skl_wrpll_params wrpll_params = {}; + u32 ctrl1, cfgcr1, cfgcr2; + int ret; + + /* + * See comment in intel_dpll_hw_state to understand why we always use 0 + * as the DPLL id in this function. + */ + ctrl1 = DPLL_CTRL1_OVERRIDE(0); + + ctrl1 |= DPLL_CTRL1_HDMI_MODE(0); + + ret = skl_ddi_calculate_wrpll(crtc_state->port_clock * 1000, + i915->display.dpll.ref_clks.nssc, &wrpll_params); + if (ret) + return ret; + + cfgcr1 = DPLL_CFGCR1_FREQ_ENABLE | + DPLL_CFGCR1_DCO_FRACTION(wrpll_params.dco_fraction) | + wrpll_params.dco_integer; + + cfgcr2 = DPLL_CFGCR2_QDIV_RATIO(wrpll_params.qdiv_ratio) | + DPLL_CFGCR2_QDIV_MODE(wrpll_params.qdiv_mode) | + DPLL_CFGCR2_KDIV(wrpll_params.kdiv) | + DPLL_CFGCR2_PDIV(wrpll_params.pdiv) | + wrpll_params.central_freq; + + crtc_state->dpll_hw_state.ctrl1 = ctrl1; + 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; +} + static int skl_ddi_dp_set_dpll_hw_state(struct intel_crtc_state *crtc_state) { @@ -1858,7 +1865,7 @@ static int skl_ddi_pll_get_freq(struct drm_i915_private *i915, static void skl_update_dpll_ref_clks(struct drm_i915_private *i915) { /* No SSC ref */ - i915->display.dpll.ref_clks.nssc = i915->cdclk.hw.ref; + i915->display.dpll.ref_clks.nssc = i915->display.cdclk.hw.ref; } static void skl_dump_hw_state(struct drm_i915_private *dev_priv, @@ -2245,6 +2252,23 @@ static int bxt_ddi_set_dpll_hw_state(struct intel_crtc_state *crtc_state, return 0; } +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) +{ + struct dpll clock; + + clock.m1 = 2; + clock.m2 = REG_FIELD_GET(PORT_PLL_M2_INT_MASK, pll_state->pll0) << 22; + if (pll_state->pll3 & PORT_PLL_M2_FRAC_ENABLE) + clock.m2 |= REG_FIELD_GET(PORT_PLL_M2_FRAC_MASK, pll_state->pll2); + clock.n = REG_FIELD_GET(PORT_PLL_N_MASK, pll_state->pll1); + clock.p1 = REG_FIELD_GET(PORT_PLL_P1_MASK, pll_state->ebb0); + clock.p2 = REG_FIELD_GET(PORT_PLL_P2_MASK, pll_state->ebb0); + + return chv_calc_dpll_params(i915->display.dpll.ref_clks.nssc, &clock); +} + static int bxt_ddi_dp_set_dpll_hw_state(struct intel_crtc_state *crtc_state) { @@ -2258,28 +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); -} - -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) -{ - struct dpll clock; + ret = bxt_ddi_set_dpll_hw_state(crtc_state, &clk_div); + if (ret) + return ret; - clock.m1 = 2; - clock.m2 = REG_FIELD_GET(PORT_PLL_M2_INT_MASK, pll_state->pll0) << 22; - if (pll_state->pll3 & PORT_PLL_M2_FRAC_ENABLE) - clock.m2 |= REG_FIELD_GET(PORT_PLL_M2_FRAC_MASK, pll_state->pll2); - clock.n = REG_FIELD_GET(PORT_PLL_N_MASK, pll_state->pll1); - clock.p1 = REG_FIELD_GET(PORT_PLL_P1_MASK, pll_state->ebb0); - clock.p2 = REG_FIELD_GET(PORT_PLL_P2_MASK, pll_state->ebb0); + crtc_state->port_clock = bxt_ddi_pll_get_freq(i915, NULL, + &crtc_state->dpll_hw_state); - return chv_calc_dpll_params(i915->display.dpll.ref_clks.nssc, &clock); + return 0; } static int bxt_compute_dpll(struct intel_atomic_state *state, @@ -2769,8 +2785,8 @@ static void icl_calc_dpll_state(struct drm_i915_private *i915, else pll_state->cfgcr1 |= DPLL_CFGCR1_CENTRAL_FREQ_8400; - if (i915->vbt.override_afc_startup) - pll_state->div0 = TGL_DPLL0_DIV0_AFC_STARTUP(i915->vbt.override_afc_startup_val); + if (i915->display.vbt.override_afc_startup) + pll_state->div0 = TGL_DPLL0_DIV0_AFC_STARTUP(i915->display.vbt.override_afc_startup_val); } static int icl_mg_pll_find_divisors(int clock_khz, bool is_dp, bool use_ssc, @@ -2965,8 +2981,8 @@ static int icl_calc_mg_pll_state(struct intel_crtc_state *crtc_state, DKL_PLL_DIV0_PROP_COEFF(prop_coeff) | DKL_PLL_DIV0_FBPREDIV(m1div) | DKL_PLL_DIV0_FBDIV_INT(m2div_int); - if (dev_priv->vbt.override_afc_startup) { - u8 val = dev_priv->vbt.override_afc_startup_val; + if (dev_priv->display.vbt.override_afc_startup) { + u8 val = dev_priv->display.vbt.override_afc_startup_val; pll_state->mg_pll_div0 |= DKL_PLL_DIV0_AFC_STARTUP(val); } @@ -3197,6 +3213,12 @@ static int icl_compute_combo_phy_dpll(struct intel_atomic_state *state, icl_calc_dpll_state(dev_priv, &pll_params, &port_dpll->hw_state); + /* this is mainly for the fastset check */ + icl_set_active_port_dpll(crtc_state, ICL_PORT_DPLL_DEFAULT); + + crtc_state->port_clock = icl_ddi_combo_pll_get_freq(dev_priv, NULL, + &port_dpll->hw_state); + return 0; } @@ -3282,6 +3304,12 @@ static int icl_compute_tc_phy_dplls(struct intel_atomic_state *state, if (ret) return ret; + /* this is mainly for the fastset check */ + icl_set_active_port_dpll(crtc_state, ICL_PORT_DPLL_MG_PHY); + + crtc_state->port_clock = icl_ddi_mg_pll_get_freq(dev_priv, NULL, + &port_dpll->hw_state); + return 0; } @@ -3502,7 +3530,7 @@ static bool dkl_pll_get_hw_state(struct drm_i915_private *dev_priv, hw_state->mg_pll_div0 = intel_de_read(dev_priv, DKL_PLL_DIV0(tc_port)); val = DKL_PLL_DIV0_MASK; - if (dev_priv->vbt.override_afc_startup) + if (dev_priv->display.vbt.override_afc_startup) val |= DKL_PLL_DIV0_AFC_STARTUP_MASK; hw_state->mg_pll_div0 &= val; @@ -3566,7 +3594,7 @@ static bool icl_pll_get_hw_state(struct drm_i915_private *dev_priv, TGL_DPLL_CFGCR0(id)); hw_state->cfgcr1 = intel_de_read(dev_priv, TGL_DPLL_CFGCR1(id)); - if (dev_priv->vbt.override_afc_startup) { + if (dev_priv->display.vbt.override_afc_startup) { hw_state->div0 = intel_de_read(dev_priv, TGL_DPLL0_DIV0(id)); hw_state->div0 &= TGL_DPLL0_DIV0_AFC_STARTUP_MASK; } @@ -3638,9 +3666,9 @@ static void icl_dpll_write(struct drm_i915_private *dev_priv, intel_de_write(dev_priv, cfgcr0_reg, hw_state->cfgcr0); intel_de_write(dev_priv, cfgcr1_reg, hw_state->cfgcr1); - drm_WARN_ON_ONCE(&dev_priv->drm, dev_priv->vbt.override_afc_startup && + drm_WARN_ON_ONCE(&dev_priv->drm, dev_priv->display.vbt.override_afc_startup && !i915_mmio_reg_valid(div0_reg)); - if (dev_priv->vbt.override_afc_startup && + if (dev_priv->display.vbt.override_afc_startup && i915_mmio_reg_valid(div0_reg)) intel_de_rmw(dev_priv, div0_reg, TGL_DPLL0_DIV0_AFC_STARTUP_MASK, hw_state->div0); @@ -3732,7 +3760,7 @@ static void dkl_pll_write(struct drm_i915_private *dev_priv, intel_de_write(dev_priv, DKL_CLKTOP2_HSCLKCTL(tc_port), val); val = DKL_PLL_DIV0_MASK; - if (dev_priv->vbt.override_afc_startup) + if (dev_priv->display.vbt.override_afc_startup) val |= DKL_PLL_DIV0_AFC_STARTUP_MASK; intel_de_rmw(dev_priv, DKL_PLL_DIV0(tc_port), val, hw_state->mg_pll_div0); @@ -3967,7 +3995,7 @@ static void mg_pll_disable(struct drm_i915_private *dev_priv, static void icl_update_dpll_ref_clks(struct drm_i915_private *i915) { /* No SSC ref */ - i915->display.dpll.ref_clks.nssc = i915->cdclk.hw.ref; + i915->display.dpll.ref_clks.nssc = i915->display.cdclk.hw.ref; } static void icl_dump_hw_state(struct drm_i915_private *dev_priv, @@ -4199,6 +4227,10 @@ void intel_shared_dpll_init(struct drm_i915_private *dev_priv) dpll_info = dpll_mgr->dpll_info; for (i = 0; dpll_info[i].name; i++) { + if (drm_WARN_ON(&dev_priv->drm, + i >= ARRAY_SIZE(dev_priv->display.dpll.shared_dplls))) + break; + drm_WARN_ON(&dev_priv->drm, i != dpll_info[i].id); dev_priv->display.dpll.shared_dplls[i].info = &dpll_info[i]; } @@ -4206,8 +4238,6 @@ void intel_shared_dpll_init(struct drm_i915_private *dev_priv) dev_priv->display.dpll.mgr = dpll_mgr; dev_priv->display.dpll.num_shared_dpll = i; mutex_init(&dev_priv->display.dpll.lock); - - BUG_ON(dev_priv->display.dpll.num_shared_dpll > I915_NUM_PLLS); } /** |