From patchwork Thu Mar 25 18:06:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Matt Roper X-Patchwork-Id: 12164799 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 9212AC433E1 for ; Thu, 25 Mar 2021 18:08:17 +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 472EF61A24 for ; Thu, 25 Mar 2021 18:08:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 472EF61A24 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 B90036EDDF; Thu, 25 Mar 2021 18:08:16 +0000 (UTC) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id B27A36EDDA for ; Thu, 25 Mar 2021 18:07:32 +0000 (UTC) IronPort-SDR: Y8XW8lzF1sxShCC6SuFuJwPNxz2OeX0riPH96W8NY7RQIcbBjMob/AwFj9eSVwjEg7gexh5+Sz 2nsvfzKpG8HQ== X-IronPort-AV: E=McAfee;i="6000,8403,9934"; a="178112547" X-IronPort-AV: E=Sophos;i="5.81,278,1610438400"; d="scan'208";a="178112547" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Mar 2021 11:07:32 -0700 IronPort-SDR: oMFZFT/p1CM0uuCjzWXuEroyYlMA2p1Xno5pNlOyDoALtGsr0EDhxgl7TOQVmcJE1N2aGtzFlF Kg4f1jOCk3mg== X-IronPort-AV: E=Sophos;i="5.81,278,1610438400"; d="scan'208";a="453176643" Received: from mdroper-desk1.fm.intel.com ([10.1.27.168]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Mar 2021 11:07:32 -0700 From: Matt Roper To: intel-gfx@lists.freedesktop.org Date: Thu, 25 Mar 2021 11:06:56 -0700 Message-Id: <20210325180720.401410-27-matthew.d.roper@intel.com> X-Mailer: git-send-email 2.25.4 In-Reply-To: <20210325180720.401410-1-matthew.d.roper@intel.com> References: <20210325180720.401410-1-matthew.d.roper@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v2 26/50] drm/i915/display/tc: Rename safe_mode functions ownership 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: me@freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: José Roberto de Souza When DP_PHY_MODE_STATUS_NOT_SAFE is set, it means that display has the control over the TC phy. The "not safe" naming is confusing using ownership make it easier to read also future platforms will have a new register that does the same job as DP_PHY_MODE_STATUS_NOT_SAFE but with the onwership name. BSpec: 49294 Cc: Imre Deak Signed-off-by: José Roberto de Souza Signed-off-by: Clinton Taylor Signed-off-by: Matt Roper Reviewed-by: Imre Deak --- drivers/gpu/drm/i915/display/intel_tc.c | 35 ++++++++++++------------- 1 file changed, 17 insertions(+), 18 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c index 71b8edafb1c3..c007803cfd30 100644 --- a/drivers/gpu/drm/i915/display/intel_tc.c +++ b/drivers/gpu/drm/i915/display/intel_tc.c @@ -256,8 +256,8 @@ 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 icl_tc_phy_set_safe_mode(struct intel_digital_port *dig_port, - bool enable) +static bool icl_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; @@ -267,20 +267,20 @@ static bool icl_tc_phy_set_safe_mode(struct intel_digital_port *dig_port, PORT_TX_DFLEXDPCSSS(dig_port->tc_phy_fia)); if (val == 0xffffffff) { drm_dbg_kms(&i915->drm, - "Port %s: PHY in TCCOLD, can't set safe-mode to %s\n", - dig_port->tc_port_name, enableddisabled(enable)); + "Port %s: PHY in TCCOLD, can't %s ownership\n", + dig_port->tc_port_name, take ? "take" : "release"); return false; } val &= ~DP_PHY_MODE_STATUS_NOT_SAFE(dig_port->tc_phy_fia_idx); - if (!enable) + if (take) val |= DP_PHY_MODE_STATUS_NOT_SAFE(dig_port->tc_phy_fia_idx); intel_uncore_write(uncore, PORT_TX_DFLEXDPCSSS(dig_port->tc_phy_fia), val); - if (enable && wait_for(!icl_tc_phy_status_complete(dig_port), 10)) + if (!take && wait_for(!icl_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); @@ -288,7 +288,7 @@ static bool icl_tc_phy_set_safe_mode(struct intel_digital_port *dig_port, return true; } -static bool icl_tc_phy_is_in_safe_mode(struct intel_digital_port *dig_port) +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); struct intel_uncore *uncore = &i915->uncore; @@ -303,7 +303,7 @@ static bool icl_tc_phy_is_in_safe_mode(struct intel_digital_port *dig_port) return true; } - return !(val & DP_PHY_MODE_STATUS_NOT_SAFE(dig_port->tc_phy_fia_idx)); + return val & DP_PHY_MODE_STATUS_NOT_SAFE(dig_port->tc_phy_fia_idx); } /* @@ -329,7 +329,7 @@ static void icl_tc_phy_connect(struct intel_digital_port *dig_port, goto out_set_tbt_alt_mode; } - if (!icl_tc_phy_set_safe_mode(dig_port, false) && + if (!icl_tc_phy_take_ownership(dig_port, true) && !drm_WARN_ON(&i915->drm, dig_port->tc_legacy_port)) goto out_set_tbt_alt_mode; @@ -348,7 +348,7 @@ static void icl_tc_phy_connect(struct intel_digital_port *dig_port, if (!(tc_port_live_status_mask(dig_port) & BIT(TC_PORT_DP_ALT))) { drm_dbg_kms(&i915->drm, "Port %s: PHY sudden disconnect\n", dig_port->tc_port_name); - goto out_set_safe_mode; + goto out_release_phy; } if (max_lanes < required_lanes) { @@ -356,15 +356,15 @@ static void icl_tc_phy_connect(struct intel_digital_port *dig_port, "Port %s: PHY max lanes %d < required lanes %d\n", dig_port->tc_port_name, max_lanes, required_lanes); - goto out_set_safe_mode; + goto out_release_phy; } dig_port->tc_mode = TC_PORT_DP_ALT; return; -out_set_safe_mode: - icl_tc_phy_set_safe_mode(dig_port, true); +out_release_phy: + icl_tc_phy_take_ownership(dig_port, false); out_set_tbt_alt_mode: dig_port->tc_mode = TC_PORT_TBT_ALT; } @@ -380,7 +380,7 @@ 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_set_safe_mode(dig_port, true); + icl_tc_phy_take_ownership(dig_port, false); dig_port->tc_mode = TC_PORT_TBT_ALT; break; case TC_PORT_TBT_ALT: @@ -401,8 +401,8 @@ static bool icl_tc_phy_is_connected(struct intel_digital_port *dig_port) return dig_port->tc_mode == TC_PORT_TBT_ALT; } - if (icl_tc_phy_is_in_safe_mode(dig_port)) { - drm_dbg_kms(&i915->drm, "Port %s: PHY still in safe mode\n", + if (!icl_tc_phy_is_owned(dig_port)) { + drm_dbg_kms(&i915->drm, "Port %s: PHY not owned\n", dig_port->tc_port_name); return false; @@ -417,10 +417,9 @@ intel_tc_port_get_current_mode(struct intel_digital_port *dig_port) { struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); u32 live_status_mask = tc_port_live_status_mask(dig_port); - bool in_safe_mode = icl_tc_phy_is_in_safe_mode(dig_port); enum tc_port_mode mode; - if (in_safe_mode || + if (!icl_tc_phy_is_owned(dig_port) || drm_WARN_ON(&i915->drm, !icl_tc_phy_status_complete(dig_port))) return TC_PORT_TBT_ALT;