From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 A4429285073; Mon, 9 Feb 2026 14:48:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770648527; cv=none; b=uzCswzIAVGRMYB4yf5weoPMJuP8WRDn1+HQwdq3a3pjPv+TEOZ1uNbZGgTMtmjX+efzMqvckCf7MB03zQ1Iy7ibx2Q8xG9hHqmdrnYnXOPTIuvToCLxr1qBjpZctyB282jC0dd0lYgNh6GJceO9LUcSjWcQuRsr4d77xl30CZ/Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770648527; c=relaxed/simple; bh=YXjBNje42pH691iNPNuHQEPrRgnVLpsoJTlbrVIaTwE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=XX8Vh59Wf6B+uihJ/35uvvT90zgOamxKP/M4rQ9utFq2Nkczag6OVy/I3dcqoLDrb64a2VW27Is1RD6eKbc80fuVYLQ/yniTWnNJuTPeA7rnmh4I6Hdl+9Di3DYtwIc29w1X28sz1KHc37dL5cf6m7nHds7W/53sSg7tOZAHF0Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=MLTNaGlS; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="MLTNaGlS" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 11CA5C116C6; Mon, 9 Feb 2026 14:48:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1770648527; bh=YXjBNje42pH691iNPNuHQEPrRgnVLpsoJTlbrVIaTwE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MLTNaGlSDci01FxQ2vzG74+H9ZrGLE/s6ikkfHwFt+iyzCuzg4uJYeQPuJ+tkrX2O 0hYZ2fMQwm2pZAl+TiY/5BKGexNi0AsVLUQhmFHbfCtp+j2yT37do7JphMU9jhSO5J ZTGm4UNgJNNQJDU7AdEqWZCGWQSnakDE7ev8lyUs= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Kaushlendra Kumar , =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= , Sasha Levin Subject: [PATCH 6.6 57/86] platform/x86: intel_telemetry: Fix PSS event register mask Date: Mon, 9 Feb 2026 15:24:20 +0100 Message-ID: <20260209142306.831616812@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260209142304.770150175@linuxfoundation.org> References: <20260209142304.770150175@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Kaushlendra Kumar [ Upstream commit 39e9c376ac42705af4ed4ae39eec028e8bced9b4 ] The PSS telemetry info parsing incorrectly applies TELEM_INFO_SRAMEVTS_MASK when extracting event register count from firmware response. This reads bits 15-8 instead of the correct bits 7-0, causing misdetection of hardware capabilities. The IOSS path correctly uses TELEM_INFO_NENABLES_MASK for register count. Apply the same mask to PSS parsing for consistency. Fixes: 9d16b482b059 ("platform:x86: Add Intel telemetry platform driver") Signed-off-by: Kaushlendra Kumar Link: https://patch.msgid.link/20251224061144.3925519-1-kaushlendra.kumar@intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen Signed-off-by: Sasha Levin --- drivers/platform/x86/intel/telemetry/pltdrv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/platform/x86/intel/telemetry/pltdrv.c b/drivers/platform/x86/intel/telemetry/pltdrv.c index 06311d0e94518..a574615c6faa6 100644 --- a/drivers/platform/x86/intel/telemetry/pltdrv.c +++ b/drivers/platform/x86/intel/telemetry/pltdrv.c @@ -610,7 +610,7 @@ static int telemetry_setup(struct platform_device *pdev) /* Get telemetry Info */ events = (read_buf & TELEM_INFO_SRAMEVTS_MASK) >> TELEM_INFO_SRAMEVTS_SHIFT; - event_regs = read_buf & TELEM_INFO_SRAMEVTS_MASK; + event_regs = read_buf & TELEM_INFO_NENABLES_MASK; if ((events < TELEM_MAX_EVENTS_SRAM) || (event_regs < TELEM_MAX_EVENTS_SRAM)) { dev_err(&pdev->dev, "PSS:Insufficient Space for SRAM Trace\n"); -- 2.51.0