From patchwork Fri Jul 25 03:27:55 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dheeraj Jamwal X-Patchwork-Id: 4708421 Return-Path: X-Original-To: patchwork-ltsi-dev@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 7F43BC0338 for ; Mon, 11 Aug 2014 18:43:32 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id AEAF92011E for ; Mon, 11 Aug 2014 18:43:31 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E1A512009C for ; Mon, 11 Aug 2014 18:43:30 +0000 (UTC) Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id 46E46B32; Mon, 11 Aug 2014 18:42:53 +0000 (UTC) X-Original-To: ltsi-dev@lists.linuxfoundation.org Delivered-To: ltsi-dev@mail.linuxfoundation.org Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id B918D8E2 for ; Fri, 25 Jul 2014 03:25:39 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by smtp1.linuxfoundation.org (Postfix) with ESMTP id 690911FB59 for ; Fri, 25 Jul 2014 03:25:39 +0000 (UTC) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga103.fm.intel.com with ESMTP; 24 Jul 2014 20:18:59 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.01,727,1400050800"; d="scan'208";a="566985266" Received: from ubuntu-desktop.png.intel.com ([10.221.122.23]) by fmsmga001.fm.intel.com with ESMTP; 24 Jul 2014 20:25:27 -0700 From: Dheeraj Jamwal To: ltsi-dev@lists.linuxfoundation.org Date: Fri, 25 Jul 2014 11:27:55 +0800 Message-Id: <1406258918-18934-8-git-send-email-dheerajx.s.jamwal@intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1406258918-18934-1-git-send-email-dheerajx.s.jamwal@intel.com> References: <1406258918-18934-1-git-send-email-dheerajx.s.jamwal@intel.com> X-Spam-Status: No, score=-4.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Mailman-Approved-At: Mon, 11 Aug 2014 18:42:51 +0000 Subject: [LTSI-dev] [PATCH 07/50] drm/i915: Sample the frame counter instead of a timestamp for CRCs X-BeenThere: ltsi-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: "A list to discuss patches, development, and other things related to the LTSI project" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: ltsi-dev-bounces@lists.linuxfoundation.org Errors-To: ltsi-dev-bounces@lists.linuxfoundation.org X-Virus-Scanned: ClamAV using ClamSMTP From: Damien Lespiau Signed-off-by: Damien Lespiau Signed-off-by: Daniel Vetter (cherry picked from commit ac2300d4d5c2e9e4d82361a582cf1df3ec22fec7) Signed-off-by: Dheeraj Jamwal --- drivers/gpu/drm/i915/i915_debugfs.c | 4 ++-- drivers/gpu/drm/i915/i915_drv.h | 2 +- drivers/gpu/drm/i915/i915_irq.c | 8 ++------ 3 files changed, 5 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 991abff..58c6fd4 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -1748,14 +1748,14 @@ static int i915_pipe_crc(struct seq_file *m, void *data) return 0; } - seq_puts(m, " timestamp CRC1 CRC2 CRC3 CRC4 CRC5\n"); + seq_puts(m, " frame CRC1 CRC2 CRC3 CRC4 CRC5\n"); head = atomic_read(&pipe_crc->head); tail = atomic_read(&pipe_crc->tail); while (CIRC_CNT(head, tail, INTEL_PIPE_CRC_ENTRIES_NR) >= 1) { struct intel_pipe_crc_entry *entry = &pipe_crc->entries[tail]; - seq_printf(m, "%12u %8x %8x %8x %8x %8x\n", entry->timestamp, + seq_printf(m, "%8u %8x %8x %8x %8x %8x\n", entry->frame, entry->crc[0], entry->crc[1], entry->crc[2], entry->crc[3], entry->crc[4]); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index a0fd931..879e044 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1226,7 +1226,7 @@ enum intel_pipe_crc_source { }; struct intel_pipe_crc_entry { - uint32_t timestamp; + uint32_t frame; uint32_t crc[5]; }; diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 73d76af..0b21828 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1195,8 +1195,7 @@ static void ivb_pipe_crc_update(struct drm_device *dev, enum pipe pipe) struct drm_i915_private *dev_priv = dev->dev_private; struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[pipe]; struct intel_pipe_crc_entry *entry; - ktime_t now; - int ts, head, tail; + int head, tail; head = atomic_read(&pipe_crc->head); tail = atomic_read(&pipe_crc->tail); @@ -1208,10 +1207,7 @@ static void ivb_pipe_crc_update(struct drm_device *dev, enum pipe pipe) entry = &pipe_crc->entries[head]; - now = ktime_get(); - ts = ktime_to_us(now); - - entry->timestamp = ts; + entry->frame = I915_READ(PIPEFRAME(pipe)); entry->crc[0] = I915_READ(PIPE_CRC_RES_1_IVB(pipe)); entry->crc[1] = I915_READ(PIPE_CRC_RES_2_IVB(pipe)); entry->crc[2] = I915_READ(PIPE_CRC_RES_3_IVB(pipe));