From patchwork Tue Jun 13 21:52:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sripada, Radhakrishna" X-Patchwork-Id: 13279246 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 5DC09EB64DA for ; Tue, 13 Jun 2023 21:54:08 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 99D0810E3E0; Tue, 13 Jun 2023 21:54:07 +0000 (UTC) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by gabe.freedesktop.org (Postfix) with ESMTPS id 25BFF10E3E3 for ; Tue, 13 Jun 2023 21:54:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1686693246; x=1718229246; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=bCJeBiPUPCDAGj2f0mRVqvNnuSv6/FvdvNBTu/ucMXI=; b=HhzcALwKDko6h2g2smoj5G+Y+kAaWTr92DaCuqTjF7EJ4mIuyvMVO9xG zSrZCNMOfodbkkDAT3mxpTfjz1HLe2/vUC33P85tN6YBpSMej5bXmjp1j wSBLSjQ0DDY1KbB+k16tiHWADLl6NS7g39hxys+UhCtaLY8EEMIe8m4GH QMMIgcKFvQehptkxEveG0TuJCGZSepej9uGMKiHEnV+JD9E9lMsgLroxQ zI32xiFeeXCzhEU/3Yh0wNMeHtyBXDbD+wHxmQzTXPprFUPQdlOGlvb/z zrZLNGQ95Ri5OeNCsYzYqKdr9pkAyJ7Q/FP0axL5G2NiDIIml3EmDPBbz A==; X-IronPort-AV: E=McAfee;i="6600,9927,10740"; a="338813914" X-IronPort-AV: E=Sophos;i="6.00,240,1681196400"; d="scan'208";a="338813914" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Jun 2023 14:54:05 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10740"; a="741604229" X-IronPort-AV: E=Sophos;i="6.00,240,1681196400"; d="scan'208";a="741604229" Received: from invictus.jf.intel.com ([10.165.21.201]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Jun 2023 14:54:04 -0700 From: Radhakrishna Sripada To: intel-gfx@lists.freedesktop.org Date: Tue, 13 Jun 2023 14:52:42 -0700 Message-Id: <20230613215245.1551145-2-radhakrishna.sripada@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230613215245.1551145-1-radhakrishna.sripada@intel.com> References: <20230613215245.1551145-1-radhakrishna.sripada@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 1/4] drm/i915: Add a notrace version of intel_de_read_fw 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" Around the tracing infrastructure, certain registers are being read resulting in nested traces. Introduce the no trace version of intel_de_read_fw to be used in such scenarios. Signed-off-by: Radhakrishna Sripada --- drivers/gpu/drm/i915/display/intel_de.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_de.h b/drivers/gpu/drm/i915/display/intel_de.h index 42552d8c151e..786211121ce2 100644 --- a/drivers/gpu/drm/i915/display/intel_de.h +++ b/drivers/gpu/drm/i915/display/intel_de.h @@ -93,6 +93,16 @@ intel_de_wait_for_clear(struct drm_i915_private *i915, i915_reg_t reg, * therefore generally be serialised, by either the dev_priv->uncore.lock or * a more localised lock guarding all access to that bank of registers. */ +static inline u32 +intel_de_read_fw_notrace(struct drm_i915_private *i915, i915_reg_t reg) +{ + u32 val; + + val = intel_uncore_read_fw(&i915->uncore, reg); + + return val; +} + static inline u32 intel_de_read_fw(struct drm_i915_private *i915, i915_reg_t reg) {