From patchwork Mon Mar 26 09:08:31 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lionel Landwerlin X-Patchwork-Id: 10307457 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 0C6B36063E for ; Mon, 26 Mar 2018 09:08:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F288F295D3 for ; Mon, 26 Mar 2018 09:08:55 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E7669295D4; Mon, 26 Mar 2018 09:08:55 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 8A36A295D5 for ; Mon, 26 Mar 2018 09:08:55 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2E6C26E473; Mon, 26 Mar 2018 09:08:54 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id CAA7F6E465 for ; Mon, 26 Mar 2018 09:08:49 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 26 Mar 2018 02:08:49 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,364,1517904000"; d="scan'208";a="31299556" Received: from delly.ld.intel.com ([10.103.238.202]) by fmsmga002.fm.intel.com with ESMTP; 26 Mar 2018 02:08:48 -0700 From: Lionel Landwerlin To: intel-gfx@lists.freedesktop.org Date: Mon, 26 Mar 2018 10:08:31 +0100 Message-Id: <20180326090831.22686-12-lionel.g.landwerlin@intel.com> X-Mailer: git-send-email 2.16.3 In-Reply-To: <20180326090831.22686-1-lionel.g.landwerlin@intel.com> References: <20180326090831.22686-1-lionel.g.landwerlin@intel.com> Subject: [Intel-gfx] [PATCH 11/11] drm/i915/perf: remove redundant oa buffer initialization X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: matthew.auld@intel.com MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP We initialize the OA buffer everytime we enable the OA unit (first call in gen[78]_oa_enable), so we don't need to initialize when preparing the metric set. Signed-off-by: Lionel Landwerlin --- drivers/gpu/drm/i915/i915_drv.h | 17 ----------------- drivers/gpu/drm/i915/i915_perf.c | 7 ++----- 2 files changed, 2 insertions(+), 22 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 1169f0a5261f..703088c0f1d3 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1480,23 +1480,6 @@ struct i915_oa_ops { */ bool (*is_valid_flex_reg)(struct drm_i915_private *dev_priv, u32 addr); - /** - * @init_oa_buffer: Resets the head and tail pointers of the - * circular buffer for periodic OA reports. - * - * Called when first opening a stream for OA metrics, but also may be - * called in response to an OA buffer overflow or other error - * condition. - * - * Note it may be necessary to clear the full OA buffer here as part of - * maintaining the invariable that new reports must be written to - * zeroed memory for us to be able to reliable detect if an expected - * report has not yet landed in memory. (At least on Haswell the OA - * buffer tail pointer is not synchronized with reports being visible - * to the CPU) - */ - void (*init_oa_buffer)(struct drm_i915_private *dev_priv); - /** * @enable_metric_set: Selects and applies any MUX configuration to set * up the Boolean and Custom (B/C) counters that are part of the diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c index f8ec09e2d599..8d0e470d0e68 100644 --- a/drivers/gpu/drm/i915/i915_perf.c +++ b/drivers/gpu/drm/i915/i915_perf.c @@ -1488,8 +1488,6 @@ static int alloc_oa_buffer(struct drm_i915_private *dev_priv, goto err_unpin; } - dev_priv->perf.oa.ops.init_oa_buffer(dev_priv); - DRM_DEBUG_DRIVER("OA Buffer initialized, gtt offset = 0x%x, vaddr = %p\n", i915_ggtt_offset(dev_priv->perf.oa.oa_buffer.vma), dev_priv->perf.oa.oa_buffer.vaddr); @@ -2065,7 +2063,8 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream, return -EINVAL; } - if (!dev_priv->perf.oa.ops.init_oa_buffer) { + + if (!dev_priv->perf.oa.ops.enable_metric_set) { DRM_DEBUG("OA unit not supported\n"); return -ENODEV; } @@ -3462,7 +3461,6 @@ void i915_perf_init(struct drm_i915_private *dev_priv) dev_priv->perf.oa.ops.is_valid_mux_reg = hsw_is_valid_mux_addr; dev_priv->perf.oa.ops.is_valid_flex_reg = NULL; - dev_priv->perf.oa.ops.init_oa_buffer = gen7_init_oa_buffer; dev_priv->perf.oa.ops.enable_metric_set = hsw_enable_metric_set; dev_priv->perf.oa.ops.disable_metric_set = hsw_disable_metric_set; dev_priv->perf.oa.ops.oa_enable = gen7_oa_enable; @@ -3481,7 +3479,6 @@ void i915_perf_init(struct drm_i915_private *dev_priv) */ dev_priv->perf.oa.oa_formats = gen8_plus_oa_formats; - dev_priv->perf.oa.ops.init_oa_buffer = gen8_init_oa_buffer; dev_priv->perf.oa.ops.oa_enable = gen8_oa_enable; dev_priv->perf.oa.ops.oa_disable = gen8_oa_disable; dev_priv->perf.oa.ops.read = gen8_oa_read;