From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7C54F49AA54 for ; Wed, 9 Sep 2026 11:50:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788954615; cv=none; b=eX+0RZUDJ0BBgo4psxAOCmJI9pfcQw32FOtITtGyx5vHH0IqSh2ic3Tv2VZWL8GRm0j3dlfWFy3gayo3YBzBUZqLcuKHJyJSbwNs/N/td0zNNsf+jH7dhDIbcKb0QfAxwvEQ2RcFzEWD7tqB8pD733pE1eyhy8RCGTYwpYUXGrc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788954615; c=relaxed/simple; bh=JM77MoJgCtZ6tNUsJZGmX/XvomhLrpyCFyTB/6wilPw=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=UnEFMb3j3yyyZglZj3bXKakclhuNauMx3qTl/hwQhZ8+yr4OYwWvLcRzZOIBoxP3nK8vIqmxecwgIxy1xI8M1ud0W3tYMVJbRwgMP5GHv06kn47wjqOnBVriHQaZ0/YQn3vN1H6bZ/LQ9q+ezf6BxO1JRETvFFU7pC7HPM8gJoI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=XCFJMbtl; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="XCFJMbtl" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CF4B11F00A3A; Wed, 9 Sep 2026 11:50:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1788954614; bh=nqHu/xSeDjueTuQvuZtVYaV6mcI/hVGnPngSWnLc7Pg=; h=Subject:To:Cc:From:Date; b=XCFJMbtlBGYNC1U0u/3A17xARspDFlhSER+LSH0aMsp7CrwLeQ1tiKhiw9/7St0Mp IDkrocPutk7rWS7cU6LQllbmPocSsnfFrQGS/WWx6S+9C1A5oEwc97QsmBSP1SnbdB sCZpVN2HdiwDji9iwaO6slls4FYxCtxHi8i2Z+pw= Subject: FAILED: patch "[PATCH] drm/xe/oa: (De-)whitelist OA registers on OA stream" failed to apply to 7.2-stable tree To: ashutosh.dixit@intel.com,umesh.nerlige.ramappa@intel.com Cc: From: Date: Wed, 09 Sep 2026 13:37:35 +0200 Message-ID: <2026090935-reliant-uncouple-e915@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit The patch below does not apply to the 7.2-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-7.2.y git checkout FETCH_HEAD git cherry-pick -x f8e6874f46f19a6a2a0f24a81689f90641bb402a # git commit -s git send-email --to '' --in-reply-to '2026090935-reliant-uncouple-e915@gregkh' --subject-prefix 'PATCH 7.2.y' 'HEAD^..' Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From f8e6874f46f19a6a2a0f24a81689f90641bb402a Mon Sep 17 00:00:00 2001 From: Ashutosh Dixit Date: Mon, 15 Jun 2026 15:42:26 -0700 Subject: [PATCH] drm/xe/oa: (De-)whitelist OA registers on OA stream open/release Whitelist OA registers on stream open and de-whitelist on stream close/release. Whitelisting is only done when 'stream->sample' is true. 'stream->sample' is only true when (a) xe_observation_paranoid is set to false by system admin, or (b) the process is perfmon_capable(). This therefore enforces the OA register whitelisting security requirements. Fixes: 828a8eaf37c3 ("drm/xe/oa: Add MMIO trigger support") Cc: stable@vger.kernel.org # v6.12+ Signed-off-by: Ashutosh Dixit Reviewed-by: Umesh Nerlige Ramappa Link: https://patch.msgid.link/20260615224227.34880-9-ashutosh.dixit@intel.com diff --git a/drivers/gpu/drm/xe/xe_oa.c b/drivers/gpu/drm/xe/xe_oa.c index 9fbd21b0ef97..b3acbcd678b7 100644 --- a/drivers/gpu/drm/xe/xe_oa.c +++ b/drivers/gpu/drm/xe/xe_oa.c @@ -37,6 +37,7 @@ #include "xe_oa.h" #include "xe_observation.h" #include "xe_pm.h" +#include "xe_reg_whitelist.h" #include "xe_sched_job.h" #include "xe_sriov.h" #include "xe_sync.h" @@ -885,6 +886,9 @@ static void xe_oa_stream_destroy(struct xe_oa_stream *stream) mutex_destroy(&stream->stream_lock); + if (stream->sample) + xe_reg_dewhitelist_oa_regs(stream->gt); + xe_oa_disable_metric_set(stream); xe_exec_queue_put(stream->k_exec_q); @@ -1886,6 +1890,9 @@ static int xe_oa_stream_open_ioctl_locked(struct xe_oa *oa, goto err_disable; } + if (stream->sample) + xe_reg_whitelist_oa_regs(stream->gt); + /* Hold a reference on the drm device till stream_fd is released */ drm_dev_get(&stream->oa->xe->drm);