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 CF17728725B; Mon, 9 Feb 2026 14:51:19 +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=1770648679; cv=none; b=Nn0lstOCTMTBc38AJxpntlaVG1H1OAGGGUsojUCSbZIGKg+WvPo6n/k2CDR11b4H65ioe9uIc9e6qSYA2RsIKljEYQPSadDFNhPEPAzlCngYqawwUD1ajz4JoN4+TSKBxaPCKyozGWdr287sKltbrQ1X7G1o3kh7yerZwY70lqw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770648679; c=relaxed/simple; bh=bQLuYzUT0q+Ef5A1S7J20M80AiLxg2qlpDM/qj0VTNU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=IB9lR/X21Jt/xVKiWNIidOFu1I5itzwcL1rDxIejeEhJWo9j3K6rSCzpzGKuWS1W5e81dHDuJULbxwhiaUS3iJT8ClrOktQQs9S9UOZY0Q9hHdz1gaba+ZBxdcUfjlNMyLiAIS08lKB2FaJ9vGJeX8pIJPHICdmtPafOBLEdit0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ELnd4wa5; 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="ELnd4wa5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3EBD0C116C6; Mon, 9 Feb 2026 14:51:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1770648679; bh=bQLuYzUT0q+Ef5A1S7J20M80AiLxg2qlpDM/qj0VTNU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ELnd4wa59ILnL/LiJk+657ZDsB/avm66KNEYcfyBspcI6pPmhCkN0yyrsars6rkIm 5gkXVTueAv7qfDUud9SXk+nxVTXguUJ4SxlsPfo3d22E/N9gpUSmAHNMg2YuCwzBX0 cGLoQxW8h9h/nc+krbPSZET6uvRg3CsrjhZq/k3Y= 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 5.10 24/41] platform/x86: intel_telemetry: Fix PSS event register mask Date: Mon, 9 Feb 2026 15:24:45 +0100 Message-ID: <20260209142257.684023144@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260209142256.797267956@linuxfoundation.org> References: <20260209142256.797267956@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 5.10-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 405dea87de6bf..dd1ee2730b6a6 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