From 80d0f76588b55e5226d65776bb5fca7360837f1d Mon Sep 17 00:00:00 2001 From: Aditya Swarup Date: Mon, 25 Jan 2021 06:07:48 -0800 Subject: [PATCH] drm/i915/adl_s: Configure DPLL for ADL-S MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Add changes for configuring DPLL for ADL-S - Reusing DG1 DPLL 2 & DPLL 3 for ADL-S - Extend CNL macro to choose DPLL_ENABLE for ADL-S. - Select CFGCR0 and CFGCR1 for ADL-S plls. On BSpec: 53720 PLL arrangement dig for adls: DPLL2 cfgcr is programmed using _ADLS_DPLL3_CFGCR(0/1) DPLL3 cfgcr is programmed using _ADLS_DPLL4_CFGCR(0/1) v2 (Lucas): add missing update_ref_clks Bspec: 50288 Bspec: 50289 Bspec: 49443 v3 : Adding another bit to HDPORT_DPLL_USED_MASK bitfield for DPLL3_USED.(mdroper) Bspec: 53707 v4: BSpec 53723 has been updated with note - DPLL2 is controlled by DPLL4 CFGCR 0/1.(mdroper) Cc: Jani Nikula Cc: Ville Syrjälä Cc: Imre Deak Cc: Matt Roper Cc: Lucas De Marchi Signed-off-by: Aditya Swarup Reviewed-by: Lucas De Marchi Signed-off-by: Lucas De Marchi Link: https://patchwork.freedesktop.org/patch/msgid/20210125140753.347998-6-aditya.swarup@intel.com --- drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 38 ++++++++++++++++++++++++--- drivers/gpu/drm/i915/i915_reg.h | 22 ++++++++++++++-- 2 files changed, 54 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c index f6ad257a260e..529b1d569af2 100644 --- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c +++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c @@ -3559,7 +3559,13 @@ static bool icl_get_combo_phy_dpll(struct intel_atomic_state *state, icl_calc_dpll_state(dev_priv, &pll_params, &port_dpll->hw_state); - if (IS_DG1(dev_priv)) { + if (IS_ALDERLAKE_S(dev_priv)) { + dpll_mask = + BIT(DPLL_ID_DG1_DPLL3) | + BIT(DPLL_ID_DG1_DPLL2) | + BIT(DPLL_ID_ICL_DPLL1) | + BIT(DPLL_ID_ICL_DPLL0); + } else if (IS_DG1(dev_priv)) { if (port == PORT_D || port == PORT_E) { dpll_mask = BIT(DPLL_ID_DG1_DPLL2) | @@ -3865,7 +3871,10 @@ static bool icl_pll_get_hw_state(struct drm_i915_private *dev_priv, if (!(val & PLL_ENABLE)) goto out; - if (IS_DG1(dev_priv)) { + if (IS_ALDERLAKE_S(dev_priv)) { + hw_state->cfgcr0 = intel_de_read(dev_priv, ADLS_DPLL_CFGCR0(id)); + hw_state->cfgcr1 = intel_de_read(dev_priv, ADLS_DPLL_CFGCR1(id)); + } else if (IS_DG1(dev_priv)) { hw_state->cfgcr0 = intel_de_read(dev_priv, DG1_DPLL_CFGCR0(id)); hw_state->cfgcr1 = intel_de_read(dev_priv, DG1_DPLL_CFGCR1(id)); } else if (IS_ROCKETLAKE(dev_priv)) { @@ -3921,7 +3930,10 @@ static void icl_dpll_write(struct drm_i915_private *dev_priv, const enum intel_dpll_id id = pll->info->id; i915_reg_t cfgcr0_reg, cfgcr1_reg; - if (IS_DG1(dev_priv)) { + if (IS_ALDERLAKE_S(dev_priv)) { + cfgcr0_reg = ADLS_DPLL_CFGCR0(id); + cfgcr1_reg = ADLS_DPLL_CFGCR1(id); + } else if (IS_DG1(dev_priv)) { cfgcr0_reg = DG1_DPLL_CFGCR0(id); cfgcr1_reg = DG1_DPLL_CFGCR1(id); } else if (IS_ROCKETLAKE(dev_priv)) { @@ -4384,6 +4396,22 @@ static const struct intel_dpll_mgr dg1_pll_mgr = { .dump_hw_state = icl_dump_hw_state, }; +static const struct dpll_info adls_plls[] = { + { "DPLL 0", &combo_pll_funcs, DPLL_ID_ICL_DPLL0, 0 }, + { "DPLL 1", &combo_pll_funcs, DPLL_ID_ICL_DPLL1, 0 }, + { "DPLL 2", &combo_pll_funcs, DPLL_ID_DG1_DPLL2, 0 }, + { "DPLL 3", &combo_pll_funcs, DPLL_ID_DG1_DPLL3, 0 }, + { }, +}; + +static const struct intel_dpll_mgr adls_pll_mgr = { + .dpll_info = adls_plls, + .get_dplls = icl_get_dplls, + .put_dplls = icl_put_dplls, + .update_ref_clks = icl_update_dpll_ref_clks, + .dump_hw_state = icl_dump_hw_state, +}; + /** * intel_shared_dpll_init - Initialize shared DPLLs * @dev: drm device @@ -4397,7 +4425,9 @@ void intel_shared_dpll_init(struct drm_device *dev) const struct dpll_info *dpll_info; int i; - if (IS_DG1(dev_priv)) + if (IS_ALDERLAKE_S(dev_priv)) + dpll_mgr = &adls_pll_mgr; + else if (IS_DG1(dev_priv)) dpll_mgr = &dg1_pll_mgr; else if (IS_ROCKETLAKE(dev_priv)) dpll_mgr = &rkl_pll_mgr; diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 56ba8f1d0424..191b897ec3eb 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -2930,7 +2930,7 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg) #define MBUS_BBOX_CTL_S2 _MMIO(0x45044) #define HDPORT_STATE _MMIO(0x45050) -#define HDPORT_DPLL_USED_MASK REG_GENMASK(14, 12) +#define HDPORT_DPLL_USED_MASK REG_GENMASK(15, 12) #define HDPORT_DDI_USED(phy) REG_BIT(2 * (phy) + 1) #define HDPORT_ENABLED REG_BIT(0) @@ -10345,11 +10345,14 @@ enum skl_power_gate { /* CNL PLL */ #define DPLL0_ENABLE 0x46010 #define DPLL1_ENABLE 0x46014 +#define _ADLS_DPLL2_ENABLE 0x46018 +#define _ADLS_DPLL3_ENABLE 0x46030 #define PLL_ENABLE (1 << 31) #define PLL_LOCK (1 << 30) #define PLL_POWER_ENABLE (1 << 27) #define PLL_POWER_STATE (1 << 26) -#define CNL_DPLL_ENABLE(pll) _MMIO_PLL(pll, DPLL0_ENABLE, DPLL1_ENABLE) +#define CNL_DPLL_ENABLE(pll) _MMIO_PLL3(pll, DPLL0_ENABLE, DPLL1_ENABLE, \ + _ADLS_DPLL2_ENABLE, _ADLS_DPLL3_ENABLE) #define TBT_PLL_ENABLE _MMIO(0x46020) @@ -10595,6 +10598,21 @@ enum skl_power_gate { _DG1_DPLL2_CFGCR1, \ _DG1_DPLL3_CFGCR1) +/* For ADL-S DPLL4_CFGCR0/1 are used to control DPLL2 */ +#define _ADLS_DPLL3_CFGCR0 0x1642C0 +#define _ADLS_DPLL4_CFGCR0 0x164294 +#define ADLS_DPLL_CFGCR0(pll) _MMIO_PLL3(pll, _TGL_DPLL0_CFGCR0, \ + _TGL_DPLL1_CFGCR0, \ + _ADLS_DPLL4_CFGCR0, \ + _ADLS_DPLL3_CFGCR0) + +#define _ADLS_DPLL3_CFGCR1 0x1642C4 +#define _ADLS_DPLL4_CFGCR1 0x164298 +#define ADLS_DPLL_CFGCR1(pll) _MMIO_PLL3(pll, _TGL_DPLL0_CFGCR1, \ + _TGL_DPLL1_CFGCR1, \ + _ADLS_DPLL4_CFGCR1, \ + _ADLS_DPLL3_CFGCR1) + #define _DKL_PHY1_BASE 0x168000 #define _DKL_PHY2_BASE 0x169000 #define _DKL_PHY3_BASE 0x16A000 -- 2.11.0