From patchwork Mon May 16 22:56:31 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jim Cromie X-Patchwork-Id: 573510 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C90E0C433F5 for ; Mon, 16 May 2022 22:57:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349950AbiEPW5k (ORCPT ); Mon, 16 May 2022 18:57:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50638 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1350007AbiEPW53 (ORCPT ); Mon, 16 May 2022 18:57:29 -0400 Received: from mail-io1-xd2c.google.com (mail-io1-xd2c.google.com [IPv6:2607:f8b0:4864:20::d2c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 90B9642EC3; Mon, 16 May 2022 15:57:23 -0700 (PDT) Received: by mail-io1-xd2c.google.com with SMTP id e3so17604760ios.6; Mon, 16 May 2022 15:57:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=0whoQsHeXptrD3TNBMDfcpTVQVx7yqX9gABSaE73ckE=; b=AjOW5QKHWAhuW8wlCA8uuv2ZQT1FNjJDoVWdRAg9V4oMd1YtwLUqQZVDxiv/rbW71G tDRTWR9Job2tMXwm4Qd8Ii/ebOOvCikKkxjmZrBLO7ISvABeNVw6gvCLoASZz5A5pXkO 2bN2fkk04CX99rIuougRR1DDpjTLdlW3z+ihfirjoo2HTNidV3pvGzBWVYgh96HuwnW0 UCf9qP6aDTPW1iDEu1RvSp4uR1BITAHIy69wuCgUtAna9woMD6giGXzerTkJfuxaz0uw XDXaoC2eMmQa4b1Be17Zhmfqngw3hKXPfmYkxXSju1ug26b57seHZvjLaJAjhjRR7K+E cBMw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=0whoQsHeXptrD3TNBMDfcpTVQVx7yqX9gABSaE73ckE=; b=DMahzUMRxxGwAVfhpDtM86zKJCGcKQcQ3ElqCU5xsuSW1Loi1yQlDSpiC6FZDw+Vx5 qe74U/cNaWHLIUeQOvDFey1CILi+YX6aAE6AUAm+XtQcrjIDj00CixjN3AaHCxkA930e YdUHSNhaaCutS7z6YHrrZgYbHql5peAzoI+yfFlWjD7WbQ711REruzp2592SmylgW93S 0B96zPm5HTiBHAfceK7F2d9lhQKybtOnT+T6bWbI1IuHe6C7Km0xEEqGAiXKn6kBNcv+ qVTZ7DrBZ85BFlAD5GskovyjD5lNB3G8dgzTaEgWmKRps6njQt45oTPB6UNlQH00uGoZ DJzQ== X-Gm-Message-State: AOAM533i4l/YL9C/e4XsDDT9rFC5IqT9g861GNo/sTB2DrU59to0zkiT s0VRJ6pV/Aiy1yz5PGuhAuQ= X-Google-Smtp-Source: ABdhPJxJyh+nGZnbHrXoqOEA6GXq4pUukckz/GPygz5+sl0Mlr8SK0ojc44qkJAMzCz0Rf5asl73WQ== X-Received: by 2002:a05:6638:2416:b0:32d:be90:ecae with SMTP id z22-20020a056638241600b0032dbe90ecaemr10896364jat.156.1652741843354; Mon, 16 May 2022 15:57:23 -0700 (PDT) Received: from frodo.hsd1.co.comcast.net ([2601:284:8204:2010::dd9f]) by smtp.googlemail.com with ESMTPSA id k26-20020a02661a000000b0032b74686763sm3133949jac.76.2022.05.16.15.57.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 May 2022 15:57:22 -0700 (PDT) From: Jim Cromie To: jbaron@akamai.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, intel-gvt-dev@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Cc: gregkh@linuxfoundation.org, daniel.vetter@ffwll.ch, seanpaul@chromium.org, robdclark@gmail.com, rostedt@goodmis.org, mathieu.desnoyers@efficios.com, quic_saipraka@quicinc.com, will@kernel.org, catalin.marinas@arm.com, quic_psodagud@quicinc.com, maz@kernel.org, arnd@arndb.de, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, mingo@redhat.com, jim.cromie@gmail.com Subject: [PATCH v2 18/27] drm_print: interpose drm_*dbg with forwarding macros Date: Mon, 16 May 2022 16:56:31 -0600 Message-Id: <20220516225640.3102269-19-jim.cromie@gmail.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20220516225640.3102269-1-jim.cromie@gmail.com> References: <20220516225640.3102269-1-jim.cromie@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org change drm_dev_dbg & drm_dbg to macros, which forward to the renamed functions (with __ prefix added). Those functions sit below the categorized layer of macros implementing the DRM debug.category API, and implement most of it. These are good places to insert dynamic-debug jump-label mechanics, which will allow DRM to avoid the runtime cost of drm_debug_enabled(). no functional changes. memory cost baseline: (unchanged) bash-5.1# drms_load [ 9.220389] dyndbg: 1 debug prints in module drm [ 9.224426] ACPI: bus type drm_connector registered [ 9.302192] dyndbg: 2 debug prints in module ttm [ 9.305033] dyndbg: 8 debug prints in module video [ 9.627563] dyndbg: 127 debug prints in module i915 [ 9.721505] AMD-Vi: AMD IOMMUv2 functionality not available on this system - This is not a bug. [ 10.091345] dyndbg: 2196 debug prints in module amdgpu [ 10.106589] [drm] amdgpu kernel modesetting enabled. [ 10.107270] amdgpu: CRAT table not found [ 10.107926] amdgpu: Virtual CRAT table created for CPU [ 10.108398] amdgpu: Topology: Add CPU node [ 10.168507] dyndbg: 3 debug prints in module wmi [ 10.329587] dyndbg: 3 debug prints in module nouveau Signed-off-by: Jim Cromie --- drivers/gpu/drm/drm_print.c | 10 +++++----- include/drm/drm_print.h | 9 +++++++-- 2 files changed, 12 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/drm_print.c b/drivers/gpu/drm/drm_print.c index e49ffda0a47e..e77b49c7725b 100644 --- a/drivers/gpu/drm/drm_print.c +++ b/drivers/gpu/drm/drm_print.c @@ -266,8 +266,8 @@ void drm_dev_printk(const struct device *dev, const char *level, } EXPORT_SYMBOL(drm_dev_printk); -void drm_dev_dbg(const struct device *dev, enum drm_debug_category category, - const char *format, ...) +void __drm_dev_dbg(const struct device *dev, enum drm_debug_category category, + const char *format, ...) { struct va_format vaf; va_list args; @@ -288,9 +288,9 @@ void drm_dev_dbg(const struct device *dev, enum drm_debug_category category, va_end(args); } -EXPORT_SYMBOL(drm_dev_dbg); +EXPORT_SYMBOL(__drm_dev_dbg); -void __drm_dbg(enum drm_debug_category category, const char *format, ...) +void ___drm_dbg(enum drm_debug_category category, const char *format, ...) { struct va_format vaf; va_list args; @@ -307,7 +307,7 @@ void __drm_dbg(enum drm_debug_category category, const char *format, ...) va_end(args); } -EXPORT_SYMBOL(__drm_dbg); +EXPORT_SYMBOL(___drm_dbg); void __drm_err(const char *format, ...) { diff --git a/include/drm/drm_print.h b/include/drm/drm_print.h index a157485bf573..383feb0d34fe 100644 --- a/include/drm/drm_print.h +++ b/include/drm/drm_print.h @@ -339,7 +339,7 @@ __printf(3, 4) void drm_dev_printk(const struct device *dev, const char *level, const char *format, ...); __printf(3, 4) -void drm_dev_dbg(const struct device *dev, enum drm_debug_category category, +void __drm_dev_dbg(const struct device *dev, enum drm_debug_category category, const char *format, ...); /** @@ -388,6 +388,9 @@ void drm_dev_dbg(const struct device *dev, enum drm_debug_category category, } \ }) +#define drm_dev_dbg(dev, cat, fmt, ...) \ + __drm_dev_dbg(dev, cat, fmt, ##__VA_ARGS__) + /** * DRM_DEV_DEBUG() - Debug output for generic drm code * @@ -489,10 +492,12 @@ void drm_dev_dbg(const struct device *dev, enum drm_debug_category category, */ __printf(2, 3) -void __drm_dbg(enum drm_debug_category category, const char *format, ...); +void ___drm_dbg(enum drm_debug_category category, const char *format, ...); __printf(1, 2) void __drm_err(const char *format, ...); +#define __drm_dbg(fmt, ...) ___drm_dbg(fmt, ##__VA_ARGS__) + /* Macros to make printk easier */ #define _DRM_PRINTK(once, level, fmt, ...) \