From patchwork Mon May 16 22:56:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jim Cromie X-Patchwork-Id: 12851589 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 4DE0AC43217 for ; Mon, 16 May 2022 22:57:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349994AbiEPW5l (ORCPT ); Mon, 16 May 2022 18:57:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50130 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349988AbiEPW52 (ORCPT ); Mon, 16 May 2022 18:57:28 -0400 Received: from mail-io1-xd2f.google.com (mail-io1-xd2f.google.com [IPv6:2607:f8b0:4864:20::d2f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 387A142A30; Mon, 16 May 2022 15:57:21 -0700 (PDT) Received: by mail-io1-xd2f.google.com with SMTP id a10so17586937ioe.9; Mon, 16 May 2022 15:57:21 -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=5Ml9ZEIbtQPoX0Jy/kpSXgxpIe2fb966gSifTzlGH6A=; b=gwjsPi3nUk5PPFCQG1WeJNe3HCM0x8Xeos1NDV0VnD3pOqAer1DhgXG5pTHIn4C5HG uu0ghOYaS79ct94ac8I4ILxLnqlkvQ2TJlrat/b0xb1u4rczFC1xwRs5Sg+6xKdna/+w 1abDELtFgKpuYt/QCDa4bZyPizCDIdsmt9N3RRVs69/d3N40C45K1J+5H2ZmRtJ4bRW1 0/DMNOn/BkxVECRNvTgcjKvskhtTr36T5aDcCh5pdzdV41+SKEorHFNagIBm+zQ4IIk+ m2hmL82F2/hv3sx70r3SidT+bgq/YCaK8VUM3WGonMSuPeT1z6tCN+JPdvmAf+rUTVyT VThw== 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=5Ml9ZEIbtQPoX0Jy/kpSXgxpIe2fb966gSifTzlGH6A=; b=iXvnLa2337b5pRgs2oFfDTQa6qS5AAPp79W1MvieEJw8tL5FolYhze81SdTBCIoviN 8LOL8/gKhiYy7IjimkHPU1+LGNzHxUnRnOW+WlWxlokREmU0mu5TNe0lpQaueCnwROzK VbilJkNfjXgJqw5vORyc8MxZ5sKfIDOcZq60BjdOXM249RqGqT0UdTEnwZR0BwfkkJet 8BELOlxAkgCD7VJ9oi8Ma9tVQZd9o5V9oIGKDhKrC9JOFwILV3JnBxUCuE0EiyNJPYuR n9PVo7yqHAPOWL84XPVegy7S8eiFoZtQ65nN/dLoU5sg2xWilfBMguZ/0eqYE7nD9zTR 0gmg== X-Gm-Message-State: AOAM533Z24kXAvqwHPvkC8Bd6QaO/yQK7o5O2BbkszX4Z8gpcc4Up2SD U8t8fMO9nEghE2IE3eP4Jwk= X-Google-Smtp-Source: ABdhPJwz3KCUfWqZef8egGVgZt6hg7h2HOTzoEtyl/qB0kRRtq3StfmQYRNHBpeqczzMlwu5Z9r89Q== X-Received: by 2002:a5d:9342:0:b0:654:9336:81d7 with SMTP id i2-20020a5d9342000000b00654933681d7mr8874996ioo.136.1652741840593; Mon, 16 May 2022 15:57:20 -0700 (PDT) Received: from frodo.hsd1.co.comcast.net ([2601:284:8204:2010::dd9f]) by smtp.googlemail.com with ESMTPSA id k26-20020a02661a000000b0032b74686763sm3133949jac.76.2022.05.16.15.57.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 May 2022 15:57:20 -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 16/27] drm/print: POC drm on dyndbg - use bitmap Date: Mon, 16 May 2022 16:56:29 -0600 Message-Id: <20220516225640.3102269-17-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 POC: adapt drm_print to use/test the bitmap callback support. with dynamic_debug.verbose=1: bash-5.1# echo 1 > /sys/module/drm/parameters/debug [ 33.697039] dyndbg: set_dyndbg_classes: new 0x1 current 0x0 [ 33.697571] dyndbg: query 0: "class DRM_UT_CORE +p" mod:* [ 33.698072] dyndbg: no matches for query [ 33.698498] dyndbg: total matches: 0 bash-5.1# echo 2 > /sys/module/drm/parameters/debug [ 46.687012] dyndbg: set_dyndbg_classes: new 0x2 current 0x1 [ 46.687655] dyndbg: query 0: "class DRM_UT_CORE -p" mod:* [ 46.688280] dyndbg: no matches for query [ 46.688632] dyndbg: query 0: "class DRM_UT_DRIVER +p" mod:* [ 46.689122] dyndbg: no matches for query [ 46.689441] dyndbg: total matches: 0 This changes typeof __drm_debug to unsigned long from unsigned int, which dyndbg requires so it can use BIT(). It is currently dependent on CONFIG_DYNAMIC_DEBUG_CORE, which is only aproximately correct, it will need proper DRM dependence too. Signed-off-by: Jim Cromie --- drivers/gpu/drm/drm_print.c | 14 ++++++++++++-- include/drm/drm_print.h | 3 ++- 2 files changed, 14 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/drm_print.c b/drivers/gpu/drm/drm_print.c index f783d4963d4b..e49ffda0a47e 100644 --- a/drivers/gpu/drm/drm_print.c +++ b/drivers/gpu/drm/drm_print.c @@ -40,7 +40,7 @@ * __drm_debug: Enable debug output. * Bitmask of DRM_UT_x. See include/drm/drm_print.h for details. */ -unsigned int __drm_debug; +unsigned long __drm_debug; EXPORT_SYMBOL(__drm_debug); MODULE_PARM_DESC(debug, "Enable debug output, where each bit enables a debug category.\n" @@ -52,7 +52,17 @@ MODULE_PARM_DESC(debug, "Enable debug output, where each bit enables a debug cat "\t\tBit 5 (0x20) will enable VBL messages (vblank code)\n" "\t\tBit 7 (0x80) will enable LEASE messages (leasing code)\n" "\t\tBit 8 (0x100) will enable DP messages (displayport code)"); -module_param_named(debug, __drm_debug, int, 0600); + +#if !defined(CONFIG_DYNAMIC_DEBUG_CORE) +module_param_named(debug, __drm_debug, ulong, 0600); +#else +static struct ddebug_classes_bitmap_param drm_debug_bitmap = { + .bits = &__drm_debug, + .flags = "p", + .map = &drm_debug_classes, +}; +module_param_cb(debug, ¶m_ops_dyndbg_classes, &drm_debug_bitmap, 0600); +#endif void __drm_puts_coredump(struct drm_printer *p, const char *str) { diff --git a/include/drm/drm_print.h b/include/drm/drm_print.h index 5b7eedb0f477..0597137bac75 100644 --- a/include/drm/drm_print.h +++ b/include/drm/drm_print.h @@ -31,11 +31,12 @@ #include #include #include +#include #include /* Do *not* use outside of drm_print.[ch]! */ -extern unsigned int __drm_debug; +extern unsigned long __drm_debug; /** * DOC: print