From patchwork Thu Mar 11 22:36:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Matt Roper X-Patchwork-Id: 12133041 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 12CA2C433E6 for ; Thu, 11 Mar 2021 22:37:03 +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 C009464F26 for ; Thu, 11 Mar 2021 22:37:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C009464F26 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 B646A6EE86; Thu, 11 Mar 2021 22:36:53 +0000 (UTC) Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id BEE506EEA6 for ; Thu, 11 Mar 2021 22:36:49 +0000 (UTC) IronPort-SDR: cLD8GIf/qibMaLfP4FLVdJR+T8VQaAfZmVuKgL0uqwi6UAsP1mGF7OO2H7BwhvaLIqBWFqLRT0 LSAnrj9yR45g== X-IronPort-AV: E=McAfee;i="6000,8403,9920"; a="250116447" X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="250116447" 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: jwqLi9TZLFBjcuG6tLV1GESEpTFxGzZZGR91xpK6mVrkTMONZ+RVbdV4mYRVOIcG/DXPD2Wtw/ ekI7urbbL8mg== X-IronPort-AV: E=Sophos;i="5.81,241,1610438400"; d="scan'208";a="438852750" 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 14:36:10 -0800 Message-Id: <20210311223632.3191939-35-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 34/56] drm/i915/adl_p: Implement TC sequences 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: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: José Roberto de Souza ADL-P have basically the same TC connection and disconnection sequences as ICL and TGL, the major difference is the new registers. So here adding functions without the icl prefix in the name and making the new functions call the platform specific function to access the correct register. BSpec: 55480 Cc: Imre Deak Signed-off-by: José Roberto de Souza Signed-off-by: Clinton Taylor Signed-off-by: Matt Roper --- drivers/gpu/drm/i915/display/intel_tc.c | 132 ++++++++++++++++++++++-- drivers/gpu/drm/i915/i915_reg.h | 10 ++ 2 files changed, 131 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c index d2d524329509..85952f39a13d 100644 --- a/drivers/gpu/drm/i915/display/intel_tc.c +++ b/drivers/gpu/drm/i915/display/intel_tc.c @@ -205,7 +205,7 @@ static void tc_port_fixup_legacy_flag(struct intel_digital_port *dig_port, dig_port->tc_legacy_port = !dig_port->tc_legacy_port; } -static u32 tc_port_live_status_mask(struct intel_digital_port *dig_port) +static u32 icl_tc_port_live_status_mask(struct intel_digital_port *dig_port) { struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); struct intel_uncore *uncore = &i915->uncore; @@ -238,6 +238,40 @@ static u32 tc_port_live_status_mask(struct intel_digital_port *dig_port) return mask; } +static u32 adl_tc_port_live_status_mask(struct intel_digital_port *dig_port) +{ + struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); + enum tc_port tc_port = intel_port_to_tc(i915, dig_port->base.port); + u32 isr_bit = i915->hotplug.pch_hpd[dig_port->base.hpd_pin]; + struct intel_uncore *uncore = &i915->uncore; + u32 val, mask = 0; + + val = intel_uncore_read(uncore, TCSS_DDI_STATUS(tc_port)); + if (val & TCSS_DDI_STATUS_HPD_LIVE_STATUS_ALT) + mask |= BIT(TC_PORT_DP_ALT); + if (val & TCSS_DDI_STATUS_HPD_LIVE_STATUS_TBT) + mask |= BIT(TC_PORT_TBT_ALT); + + if (intel_uncore_read(uncore, SDEISR) & isr_bit) + mask |= BIT(TC_PORT_LEGACY); + + /* The sink can be connected only in a single mode. */ + if (!drm_WARN_ON(&i915->drm, hweight32(mask) > 1)) + tc_port_fixup_legacy_flag(dig_port, mask); + + return mask; +} + +static u32 tc_port_live_status_mask(struct intel_digital_port *dig_port) +{ + struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); + + if (IS_ALDERLAKE_P(i915)) + return adl_tc_port_live_status_mask(dig_port); + + return icl_tc_port_live_status_mask(dig_port); +} + static bool icl_tc_phy_status_complete(struct intel_digital_port *dig_port) { struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); @@ -256,6 +290,33 @@ static bool icl_tc_phy_status_complete(struct intel_digital_port *dig_port) return val & DP_PHY_MODE_STATUS_COMPLETED(dig_port->tc_phy_fia_idx); } +static bool adl_tc_phy_status_complete(struct intel_digital_port *dig_port) +{ + struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); + struct intel_uncore *uncore = &i915->uncore; + u32 val; + + val = intel_uncore_read(uncore, TCSS_DDI_STATUS(dig_port->tc_phy_fia_idx)); + if (val == 0xffffffff) { + drm_dbg_kms(&i915->drm, + "Port %s: PHY in TCCOLD, assuming not complete\n", + dig_port->tc_port_name); + return false; + } + + return val & TCSS_DDI_STATUS_READY; +} + +static bool tc_phy_status_complete(struct intel_digital_port *dig_port) +{ + struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); + + if (IS_ALDERLAKE_P(i915)) + return adl_tc_phy_status_complete(dig_port); + + return icl_tc_phy_status_complete(dig_port); +} + static bool icl_tc_phy_take_ownership(struct intel_digital_port *dig_port, bool take) { @@ -280,7 +341,7 @@ static bool icl_tc_phy_take_ownership(struct intel_digital_port *dig_port, intel_uncore_write(uncore, PORT_TX_DFLEXDPCSSS(dig_port->tc_phy_fia), val); - if (!take && wait_for(!icl_tc_phy_status_complete(dig_port), 10)) + if (!take && wait_for(!tc_phy_status_complete(dig_port), 10)) drm_dbg_kms(&i915->drm, "Port %s: PHY complete clear timed out\n", dig_port->tc_port_name); @@ -288,6 +349,34 @@ static bool icl_tc_phy_take_ownership(struct intel_digital_port *dig_port, return true; } +static bool adl_tc_phy_take_ownership(struct intel_digital_port *dig_port, + bool take) +{ + struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); + struct intel_uncore *uncore = &i915->uncore; + enum port port = dig_port->base.port; + u32 val; + + val = intel_uncore_read(uncore, DDI_BUF_CTL(port)); + if (take) + val |= DDI_BUF_CTL_TC_PHY_OWNERSHIP; + else + val &= ~DDI_BUF_CTL_TC_PHY_OWNERSHIP; + intel_uncore_write(uncore, DDI_BUF_CTL(port), val); + + return true; +} + +static bool tc_phy_take_ownership(struct intel_digital_port *dig_port, bool take) +{ + struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); + + if (IS_ALDERLAKE_P(i915)) + return adl_tc_phy_take_ownership(dig_port, take); + + return icl_tc_phy_take_ownership(dig_port, take); +} + static bool icl_tc_phy_is_owned(struct intel_digital_port *dig_port) { struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); @@ -306,6 +395,27 @@ static bool icl_tc_phy_is_owned(struct intel_digital_port *dig_port) return val & DP_PHY_MODE_STATUS_NOT_SAFE(dig_port->tc_phy_fia_idx); } +static bool adl_tc_phy_is_owned(struct intel_digital_port *dig_port) +{ + struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); + struct intel_uncore *uncore = &i915->uncore; + enum port port = dig_port->base.port; + u32 val; + + val = intel_uncore_read(uncore, DDI_BUF_CTL(port)); + return val & DDI_BUF_CTL_TC_PHY_OWNERSHIP; +} + +static bool tc_phy_is_owned(struct intel_digital_port *dig_port) +{ + struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); + + if (IS_ALDERLAKE_P(i915)) + return adl_tc_phy_is_owned(dig_port); + + return icl_tc_phy_is_owned(dig_port); +} + /* * This function implements the first part of the Connect Flow described by our * specification, Gen11 TypeC Programming chapter. The rest of the flow (reading @@ -323,13 +433,13 @@ static void icl_tc_phy_connect(struct intel_digital_port *dig_port, struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); int max_lanes; - if (!icl_tc_phy_status_complete(dig_port)) { + if (!tc_phy_status_complete(dig_port)) { drm_dbg_kms(&i915->drm, "Port %s: PHY not ready\n", dig_port->tc_port_name); goto out_set_tbt_alt_mode; } - if (!icl_tc_phy_take_ownership(dig_port, true) && + if (!tc_phy_take_ownership(dig_port, true) && !drm_WARN_ON(&i915->drm, dig_port->tc_legacy_port)) goto out_set_tbt_alt_mode; @@ -364,7 +474,7 @@ static void icl_tc_phy_connect(struct intel_digital_port *dig_port, return; out_release_phy: - icl_tc_phy_take_ownership(dig_port, false); + tc_phy_take_ownership(dig_port, false); out_set_tbt_alt_mode: dig_port->tc_mode = TC_PORT_TBT_ALT; } @@ -380,7 +490,7 @@ static void icl_tc_phy_disconnect(struct intel_digital_port *dig_port) /* Nothing to do, we never disconnect from legacy mode */ break; case TC_PORT_DP_ALT: - icl_tc_phy_take_ownership(dig_port, false); + tc_phy_take_ownership(dig_port, false); dig_port->tc_mode = TC_PORT_TBT_ALT; break; case TC_PORT_TBT_ALT: @@ -395,13 +505,13 @@ static bool icl_tc_phy_is_connected(struct intel_digital_port *dig_port) { struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); - if (!icl_tc_phy_status_complete(dig_port)) { + if (!tc_phy_status_complete(dig_port)) { drm_dbg_kms(&i915->drm, "Port %s: PHY status not complete\n", dig_port->tc_port_name); return dig_port->tc_mode == TC_PORT_TBT_ALT; } - if (!icl_tc_phy_is_owned(dig_port)) { + if (!tc_phy_is_owned(dig_port)) { drm_dbg_kms(&i915->drm, "Port %s: PHY not owned\n", dig_port->tc_port_name); @@ -419,8 +529,8 @@ intel_tc_port_get_current_mode(struct intel_digital_port *dig_port) u32 live_status_mask = tc_port_live_status_mask(dig_port); enum tc_port_mode mode; - if (!icl_tc_phy_is_owned(dig_port) || - drm_WARN_ON(&i915->drm, !icl_tc_phy_status_complete(dig_port))) + if (!tc_phy_is_owned(dig_port) || + drm_WARN_ON(&i915->drm, !tc_phy_status_complete(dig_port))) return TC_PORT_TBT_ALT; mode = dig_port->tc_legacy_port ? TC_PORT_LEGACY : TC_PORT_DP_ALT; @@ -442,7 +552,7 @@ intel_tc_port_get_target_mode(struct intel_digital_port *dig_port) if (live_status_mask) return fls(live_status_mask) - 1; - return icl_tc_phy_status_complete(dig_port) && + return tc_phy_status_complete(dig_port) && dig_port->tc_legacy_port ? TC_PORT_LEGACY : TC_PORT_TBT_ALT; } diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 1d0cb423720e..ce8f1e892523 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -10130,6 +10130,7 @@ enum skl_power_gate { #define DDI_BUF_EMP_MASK (0xf << 24) #define DDI_BUF_PORT_REVERSAL (1 << 16) #define DDI_BUF_IS_IDLE (1 << 7) +#define DDI_BUF_CTL_TC_PHY_OWNERSHIP REG_BIT(6) #define DDI_A_4_LANES (1 << 4) #define DDI_PORT_WIDTH(width) (((width) - 1) << 1) #define DDI_PORT_WIDTH_MASK (7 << 1) @@ -12562,6 +12563,15 @@ enum skl_power_gate { #define DP_PIN_ASSIGNMENT_MASK(idx) (0xf << ((idx) * 4)) #define DP_PIN_ASSIGNMENT(idx, x) ((x) << ((idx) * 4)) +#define _TCSS_DDI_STATUS_1 0x161500 +#define _TCSS_DDI_STATUS_2 0x161504 +#define TCSS_DDI_STATUS(tc) _MMIO(_PICK_EVEN(tc, \ + _TCSS_DDI_STATUS_1, \ + _TCSS_DDI_STATUS_2)) +#define TCSS_DDI_STATUS_READY REG_BIT(2) +#define TCSS_DDI_STATUS_HPD_LIVE_STATUS_TBT REG_BIT(1) +#define TCSS_DDI_STATUS_HPD_LIVE_STATUS_ALT REG_BIT(0) + /* This register controls the Display State Buffer (DSB) engines. */ #define _DSBSL_INSTANCE_BASE 0x70B00 #define DSBSL_INSTANCE(pipe, id) (_DSBSL_INSTANCE_BASE + \