From patchwork Thu Jul 18 08:17:58 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ankit Nautiyal X-Patchwork-Id: 13736194 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id A3586C3DA64 for ; Thu, 18 Jul 2024 08:17:17 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3A9BC10E5D1; Thu, 18 Jul 2024 08:17:17 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="SbaMfrIK"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.17]) by gabe.freedesktop.org (Postfix) with ESMTPS id 433FD10E5C0 for ; Thu, 18 Jul 2024 08:17:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1721290636; x=1752826636; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=kOgEV9+d+q5J9kRC77BZ5SzmSxWDM/S/L+UbxfG7g14=; b=SbaMfrIKY5S7vKzW7tALkaKknrjMPRMt8HOswH1pbq/4Fclujo2lSl1i PwE7rkSrXSFtRcJGV78Ix+oE0jZDDTwBzMn0BeH57hPL6O7RLJiFU29/S jT+NXLhbIZUfBSZfiCwbcSZ1QtpfjvOzMjNyTQuQspsb0v22L9fWvfSwr +n5FnJtoOY87b5nusDxNJjsySBcs4CTpikVD93jSa6hYcHengo+Vbhvc0 V7amPRUxOboz2hH3T2NW3StBcnGp9LE9bUSZlCsGyyinDSJ0ezxH9orr+ iuwTJt46/Ja7K2ndUeXpH075zhPn/622EEkHziTw2yjdaae0jDLC5Oca4 A==; X-CSE-ConnectionGUID: ETQwF/HDSw6kV4XSbVcWFg== X-CSE-MsgGUID: H+p9WWQWR5e5YNxOPccasg== X-IronPort-AV: E=McAfee;i="6700,10204,11136"; a="18706064" X-IronPort-AV: E=Sophos;i="6.09,217,1716274800"; d="scan'208";a="18706064" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Jul 2024 01:17:16 -0700 X-CSE-ConnectionGUID: VlWuDLT5QCaGDczhN51tFA== X-CSE-MsgGUID: WZMsVE1QQcGEanEU28iiHw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.09,217,1716274800"; d="scan'208";a="51400641" Received: from srr4-3-linux-103-aknautiy.iind.intel.com ([10.223.34.160]) by orviesa008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Jul 2024 01:17:14 -0700 From: Ankit Nautiyal To: intel-gfx@lists.freedesktop.org Cc: stanislav.lisovskiy@intel.com, jani.saarinen@intel.com, ville.syrjala@linux.intel.com Subject: [PATCH 07/12] drm/i915: Add bigjoiner and uncompressed joiner hw readout sanity checks Date: Thu, 18 Jul 2024 13:47:58 +0530 Message-ID: <20240718081803.3338564-8-ankit.k.nautiyal@intel.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240718081803.3338564-1-ankit.k.nautiyal@intel.com> References: <20240718081803.3338564-1-ankit.k.nautiyal@intel.com> MIME-Version: 1.0 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: Stanislav Lisovskiy Adding sanity checks for primary and secondary bigjoiner/uncompressed bitmasks, should make it easier to spot possible issues. Signed-off-by: Stanislav Lisovskiy Reviewed-by: Suraj Kandpal --- drivers/gpu/drm/i915/display/intel_display.c | 25 +++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 4aed8117f614..59cb0d2f773b 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -3648,11 +3648,17 @@ static void enabled_bigjoiner_pipes(struct drm_i915_private *dev_priv, } } +static u8 expected_secondary_pipes(u8 primary_pipes) +{ + return primary_pipes << 1; +} + static void enabled_joiner_pipes(struct drm_i915_private *dev_priv, u8 *primary_pipes, u8 *secondary_pipes) { u8 primary_uncompressed_joiner_pipes, primary_bigjoiner_pipes; u8 secondary_uncompressed_joiner_pipes, secondary_bigjoiner_pipes; + u8 uncompressed_joiner_pipes, bigjoiner_pipes; enabled_uncompressed_joiner_pipes(dev_priv, &primary_uncompressed_joiner_pipes, &secondary_uncompressed_joiner_pipes); @@ -3660,11 +3666,28 @@ static void enabled_joiner_pipes(struct drm_i915_private *dev_priv, enabled_bigjoiner_pipes(dev_priv, &primary_bigjoiner_pipes, &secondary_bigjoiner_pipes); + uncompressed_joiner_pipes = primary_uncompressed_joiner_pipes | + secondary_uncompressed_joiner_pipes; + bigjoiner_pipes = primary_bigjoiner_pipes | secondary_bigjoiner_pipes; + + drm_WARN(&dev_priv->drm, (uncompressed_joiner_pipes & bigjoiner_pipes) != 0, + "Uncomressed joiner pipes(%x) and bigjoiner pipes(%x) can't intersect\n", + uncompressed_joiner_pipes, bigjoiner_pipes); + drm_WARN(&dev_priv->drm, secondary_bigjoiner_pipes != + expected_secondary_pipes(primary_bigjoiner_pipes), + "Wrong secondary bigjoiner pipes(expected %x, current %x)\n", + expected_secondary_pipes(primary_bigjoiner_pipes), + secondary_bigjoiner_pipes); + drm_WARN(&dev_priv->drm, secondary_uncompressed_joiner_pipes != + expected_secondary_pipes(primary_uncompressed_joiner_pipes), + "Wrong secondary uncompressed joiner pipes(expected %x, current %x)\n", + expected_secondary_pipes(primary_uncompressed_joiner_pipes), + secondary_uncompressed_joiner_pipes); + *primary_pipes = 0; *secondary_pipes = 0; *primary_pipes = primary_uncompressed_joiner_pipes | primary_bigjoiner_pipes; - *secondary_pipes = secondary_uncompressed_joiner_pipes | secondary_bigjoiner_pipes; }