From patchwork Thu Mar 11 22:36:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Matt Roper X-Patchwork-Id: 12133089 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.9 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 85584C433E0 for ; Thu, 11 Mar 2021 22:37:21 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E5C0764F8C for ; Thu, 11 Mar 2021 22:37:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E5C0764F8C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 74C686EF2C; Thu, 11 Mar 2021 22:36:58 +0000 (UTC) Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 429AA6EEB2 for ; Thu, 11 Mar 2021 22:36:50 +0000 (UTC) IronPort-SDR: 5kl0bQob4grKcsURhi82KEtwUIrmikKmWyKpRHx4SEjvzj4EVR+qVwBPvuGbNhH1mV9XZaVZXt EwS70gmu7+sQ== X-IronPort-AV: E=McAfee;i="6000,8403,9920"; a="250116457" X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="250116457" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2021 14:36:47 -0800 IronPort-SDR: TQBqhFPWo6XMppyv0xGvagq4+Dd01xwmwPvbNtgDEcgW9pLxGGE7G7PNPxktAX9AEYaVFM4EPE 10h/A/+a7PxA== X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="438852789" Received: from mdroper-desk1.fm.intel.com ([10.1.27.168]) by fmsmga003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2021 14:36:45 -0800 From: Matt Roper To: intel-gfx@lists.freedesktop.org Date: Thu, 11 Mar 2021 14:36:22 -0800 Message-Id: <20210311223632.3191939-47-matthew.d.roper@intel.com> X-Mailer: git-send-email 2.25.4 In-Reply-To: <20210311223632.3191939-1-matthew.d.roper@intel.com> References: <20210311223632.3191939-1-matthew.d.roper@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 46/56] drm/i915/adl_p: Add PLL Support X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Lucas De Marchi Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Anusha Srivatsa The clocks in ALD_P is similar to that of TGL. The combo PLLs use the same DPLL0, DPLL1 and TBT_PLL. This patch adds the helper function intel_mg_pll_enable_reg() which is similar to intel_combo_pll_enable_reg() for being lookup place for PLL_ENABLE register in combo phy cases. Bspec: 55409,55316 Cc: Matt Roper Cc: Clinton Taylor Cc: Lucas De Marchi Cc: José Roberto de Souza Signed-off-by: Anusha Srivatsa Signed-off-by: Clinton Taylor Signed-off-by: Matt Roper --- drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 69 ++++++++++++++----- drivers/gpu/drm/i915/i915_reg.h | 8 +++ 2 files changed, 60 insertions(+), 17 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c index 8c41f82bbdc1..b5543cbe1e6c 100644 --- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c +++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c @@ -147,6 +147,16 @@ void assert_shared_dpll(struct drm_i915_private *dev_priv, pll->info->name, onoff(state), onoff(cur_state)); } +static enum tc_port icl_pll_id_to_tc_port(enum intel_dpll_id id) +{ + return TC_PORT_1 + id - DPLL_ID_ICL_MGPLL1; +} + +enum intel_dpll_id icl_tc_port_to_pll_id(enum tc_port tc_port) +{ + return tc_port - TC_PORT_1 + DPLL_ID_ICL_MGPLL1; +} + static i915_reg_t intel_combo_pll_enable_reg(struct drm_i915_private *i915, struct intel_shared_dpll *pll) @@ -159,6 +169,19 @@ intel_combo_pll_enable_reg(struct drm_i915_private *i915, return CNL_DPLL_ENABLE(pll->info->id); } +static i915_reg_t +intel_tc_pll_enable_reg(struct drm_i915_private *i915, + struct intel_shared_dpll *pll) +{ + const enum intel_dpll_id id = pll->info->id; + enum tc_port tc_port = icl_pll_id_to_tc_port(id); + + if (IS_ALDERLAKE_P(i915)) + return ADLP_PORTTC_PLL_ENABLE(tc_port); + + return MG_PLL_ENABLE(tc_port); +} + /** * intel_prepare_shared_dpll - call a dpll's prepare hook * @crtc_state: CRTC, and its state, which has a shared dpll @@ -3118,16 +3141,6 @@ static void icl_calc_dpll_state(struct drm_i915_private *i915, pll_state->cfgcr1 |= DPLL_CFGCR1_CENTRAL_FREQ_8400; } -static enum tc_port icl_pll_id_to_tc_port(enum intel_dpll_id id) -{ - return id - DPLL_ID_ICL_MGPLL1; -} - -enum intel_dpll_id icl_tc_port_to_pll_id(enum tc_port tc_port) -{ - return tc_port + DPLL_ID_ICL_MGPLL1; -} - static bool icl_mg_pll_find_divisors(int clock_khz, bool is_dp, bool use_ssc, u32 *target_dco_khz, struct intel_dpll_hw_state *state, @@ -3726,12 +3739,14 @@ static bool mg_pll_get_hw_state(struct drm_i915_private *dev_priv, bool ret = false; u32 val; + i915_reg_t enable_reg = intel_tc_pll_enable_reg(dev_priv, pll); + wakeref = intel_display_power_get_if_enabled(dev_priv, POWER_DOMAIN_DISPLAY_CORE); if (!wakeref) return false; - val = intel_de_read(dev_priv, MG_PLL_ENABLE(tc_port)); + val = intel_de_read(dev_priv, enable_reg); if (!(val & PLL_ENABLE)) goto out; @@ -3795,7 +3810,7 @@ static bool dkl_pll_get_hw_state(struct drm_i915_private *dev_priv, if (!wakeref) return false; - val = intel_de_read(dev_priv, MG_PLL_ENABLE(tc_port)); + val = intel_de_read(dev_priv, intel_tc_pll_enable_reg(dev_priv, pll)); if (!(val & PLL_ENABLE)) goto out; @@ -4167,8 +4182,7 @@ static void tbt_pll_enable(struct drm_i915_private *dev_priv, static void mg_pll_enable(struct drm_i915_private *dev_priv, struct intel_shared_dpll *pll) { - i915_reg_t enable_reg = - MG_PLL_ENABLE(icl_pll_id_to_tc_port(pll->info->id)); + i915_reg_t enable_reg = intel_tc_pll_enable_reg(dev_priv, pll); icl_pll_power_enable(dev_priv, pll, enable_reg); @@ -4247,8 +4261,7 @@ static void tbt_pll_disable(struct drm_i915_private *dev_priv, static void mg_pll_disable(struct drm_i915_private *dev_priv, struct intel_shared_dpll *pll) { - i915_reg_t enable_reg = - MG_PLL_ENABLE(icl_pll_id_to_tc_port(pll->info->id)); + i915_reg_t enable_reg = intel_tc_pll_enable_reg(dev_priv, pll); icl_pll_disable(dev_priv, pll, enable_reg); } @@ -4414,6 +4427,26 @@ static const struct intel_dpll_mgr adls_pll_mgr = { .dump_hw_state = icl_dump_hw_state, }; +static const struct dpll_info adlp_plls[] = { + { "DPLL 0", &combo_pll_funcs, DPLL_ID_ICL_DPLL0, 0 }, + { "DPLL 1", &combo_pll_funcs, DPLL_ID_ICL_DPLL1, 0 }, + { "TBT PLL", &tbt_pll_funcs, DPLL_ID_ICL_TBTPLL, 0 }, + { "TC PLL 1", &dkl_pll_funcs, DPLL_ID_ICL_MGPLL1, 0 }, + { "TC PLL 2", &dkl_pll_funcs, DPLL_ID_ICL_MGPLL2, 0 }, + { "TC PLL 3", &dkl_pll_funcs, DPLL_ID_ICL_MGPLL3, 0 }, + { "TC PLL 4", &dkl_pll_funcs, DPLL_ID_ICL_MGPLL4, 0 }, + { }, +}; + +static const struct intel_dpll_mgr adlp_pll_mgr = { + .dpll_info = adlp_plls, + .get_dplls = icl_get_dplls, + .put_dplls = icl_put_dplls, + .update_active_dpll = icl_update_active_dpll, + .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 @@ -4427,7 +4460,9 @@ void intel_shared_dpll_init(struct drm_device *dev) const struct dpll_info *dpll_info; int i; - if (IS_ALDERLAKE_S(dev_priv)) + if (IS_ALDERLAKE_P(dev_priv)) + dpll_mgr = &adlp_pll_mgr; + else if (IS_ALDERLAKE_S(dev_priv)) dpll_mgr = &adls_pll_mgr; else if (IS_DG1(dev_priv)) dpll_mgr = &dg1_pll_mgr; diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 275fd4b5c549..0422593a93d3 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -10518,6 +10518,14 @@ enum skl_power_gate { #define DG1_DPLL_ENABLE(pll) _MMIO_PLL3(pll, DPLL0_ENABLE, DPLL1_ENABLE, \ _MG_PLL1_ENABLE, _MG_PLL2_ENABLE) +/* ADL-P Type C PLL */ +#define PORTTC1_PLL_ENABLE 0x46038 +#define PORTTC2_PLL_ENABLE 0x46040 + +#define ADLP_PORTTC_PLL_ENABLE(tc_port) _MMIO_PORT((tc_port), \ + PORTTC1_PLL_ENABLE, \ + PORTTC2_PLL_ENABLE) + #define _MG_REFCLKIN_CTL_PORT1 0x16892C #define _MG_REFCLKIN_CTL_PORT2 0x16992C #define _MG_REFCLKIN_CTL_PORT3 0x16A92C