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 AAEE921ABC1; Tue, 29 Apr 2025 17:49:16 +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=1745948956; cv=none; b=awU6hnfKKDfsEiedH8vpbMwRslKfbfl12HAYKIFimg5eGrhAmAKdHVcO7GDsaD8l4KRCp6ua1WV5Vh/E7XVTzVMGSh3i8dJ1QomwjkwXmu7NyapVnQ9+qVmO8BCCIWUssjLEMQWpPStdHsUlD3gifUpWHaawxok5jxnNEQIkfUc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745948956; c=relaxed/simple; bh=3Bwuv6Ft8NOzBodLN1ncgflP0n6c8pm5lCZqasgyUWQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=lyrhatdLq6GY20Me9Z95gSNAXtGrnp1LVrRUPJzVdXXZgiKRMrF1/N/n2DkFE/Is7wuaMITjEMxy0hG8gCXCxkAo5gVA2sdFHxZVGVGb1V6fNXBd3u6aTgBx4dLPrE+Hczt7MqXKdBtluKkltT0OOZbzQ4V+F/12BNnbcQmcTkU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=MnkSDBUU; 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="MnkSDBUU" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 381BEC4CEE3; Tue, 29 Apr 2025 17:49:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1745948956; bh=3Bwuv6Ft8NOzBodLN1ncgflP0n6c8pm5lCZqasgyUWQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MnkSDBUUCNkJy0b9cpQ52CY629InzV1ieOBh1IpIVurKxVWRCReB+/EMYAHv9o0b+ nwzaNa5XP+VrBCYw/uUX7h1qtULV/e4vZER6ZVKeu76pugn2JPKg6mGW9VSCnKTVqP rapEGsZNHjgZ5560BfCngdIF30y0YmvSvpE9xF+M= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Tang Jun , Kan Liang , Ingo Molnar , Peter Zijlstra Subject: [PATCH 5.15 175/373] perf/x86/intel/uncore: Fix the scale of IIO free running counters on ICX Date: Tue, 29 Apr 2025 18:40:52 +0200 Message-ID: <20250429161130.373130515@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250429161123.119104857@linuxfoundation.org> References: <20250429161123.119104857@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Kan Liang commit 32c7f1150225694d95a51110a93be25db03bb5db upstream. There was a mistake in the ICX uncore spec too. The counter increments for every 32 bytes rather than 4 bytes. The same as SNR, there are 1 ioclk and 8 IIO bandwidth in free running counters. Reuse the snr_uncore_iio_freerunning_events(). Fixes: 2b3b76b5ec67 ("perf/x86/intel/uncore: Add Ice Lake server uncore support") Reported-by: Tang Jun Signed-off-by: Kan Liang Signed-off-by: Ingo Molnar Acked-by: Peter Zijlstra Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20250416142426.3933977-2-kan.liang@linux.intel.com Signed-off-by: Greg Kroah-Hartman --- arch/x86/events/intel/uncore_snbep.c | 33 +-------------------------------- 1 file changed, 1 insertion(+), 32 deletions(-) --- a/arch/x86/events/intel/uncore_snbep.c +++ b/arch/x86/events/intel/uncore_snbep.c @@ -5250,37 +5250,6 @@ static struct freerunning_counters icx_i [ICX_IIO_MSR_BW_IN] = { 0xaa0, 0x1, 0x10, 8, 48, icx_iio_bw_freerunning_box_offsets }, }; -static struct uncore_event_desc icx_uncore_iio_freerunning_events[] = { - /* Free-Running IIO CLOCKS Counter */ - INTEL_UNCORE_EVENT_DESC(ioclk, "event=0xff,umask=0x10"), - /* Free-Running IIO BANDWIDTH IN Counters */ - INTEL_UNCORE_EVENT_DESC(bw_in_port0, "event=0xff,umask=0x20"), - INTEL_UNCORE_EVENT_DESC(bw_in_port0.scale, "3.814697266e-6"), - INTEL_UNCORE_EVENT_DESC(bw_in_port0.unit, "MiB"), - INTEL_UNCORE_EVENT_DESC(bw_in_port1, "event=0xff,umask=0x21"), - INTEL_UNCORE_EVENT_DESC(bw_in_port1.scale, "3.814697266e-6"), - INTEL_UNCORE_EVENT_DESC(bw_in_port1.unit, "MiB"), - INTEL_UNCORE_EVENT_DESC(bw_in_port2, "event=0xff,umask=0x22"), - INTEL_UNCORE_EVENT_DESC(bw_in_port2.scale, "3.814697266e-6"), - INTEL_UNCORE_EVENT_DESC(bw_in_port2.unit, "MiB"), - INTEL_UNCORE_EVENT_DESC(bw_in_port3, "event=0xff,umask=0x23"), - INTEL_UNCORE_EVENT_DESC(bw_in_port3.scale, "3.814697266e-6"), - INTEL_UNCORE_EVENT_DESC(bw_in_port3.unit, "MiB"), - INTEL_UNCORE_EVENT_DESC(bw_in_port4, "event=0xff,umask=0x24"), - INTEL_UNCORE_EVENT_DESC(bw_in_port4.scale, "3.814697266e-6"), - INTEL_UNCORE_EVENT_DESC(bw_in_port4.unit, "MiB"), - INTEL_UNCORE_EVENT_DESC(bw_in_port5, "event=0xff,umask=0x25"), - INTEL_UNCORE_EVENT_DESC(bw_in_port5.scale, "3.814697266e-6"), - INTEL_UNCORE_EVENT_DESC(bw_in_port5.unit, "MiB"), - INTEL_UNCORE_EVENT_DESC(bw_in_port6, "event=0xff,umask=0x26"), - INTEL_UNCORE_EVENT_DESC(bw_in_port6.scale, "3.814697266e-6"), - INTEL_UNCORE_EVENT_DESC(bw_in_port6.unit, "MiB"), - INTEL_UNCORE_EVENT_DESC(bw_in_port7, "event=0xff,umask=0x27"), - INTEL_UNCORE_EVENT_DESC(bw_in_port7.scale, "3.814697266e-6"), - INTEL_UNCORE_EVENT_DESC(bw_in_port7.unit, "MiB"), - { /* end: all zeroes */ }, -}; - static struct intel_uncore_type icx_uncore_iio_free_running = { .name = "iio_free_running", .num_counters = 9, @@ -5288,7 +5257,7 @@ static struct intel_uncore_type icx_unco .num_freerunning_types = ICX_IIO_FREERUNNING_TYPE_MAX, .freerunning = icx_iio_freerunning, .ops = &skx_uncore_iio_freerunning_ops, - .event_descs = icx_uncore_iio_freerunning_events, + .event_descs = snr_uncore_iio_freerunning_events, .format_group = &skx_uncore_iio_freerunning_format_group, };