From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CE610C47077 for ; Tue, 16 Jan 2024 23:16:10 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8E72910E601; Tue, 16 Jan 2024 23:16:10 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9FB9B10E0D6 for ; Tue, 16 Jan 2024 23:16:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1705446964; x=1736982964; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=6YeUwyy4ItprxgVZ9Z/0/l8Z+sg2KssHumqUiIjNa9o=; b=GXgl4ifu1Cqji27moTjLzIA4XZT3CR5rPO5NifSa3/nhqK9uVDf90lMv STtNvvLM0Msudw2KbP3XI1MwwkDiFUQpFV7FcWkjSrrCCZ2tTvkxbHWcf pQ670jhXfw1xUPIIn4XMhBMVNKFBGUhASKRUTiZpaAPhjZU7x15LulX+r FmVcO4IX3U1Scm438HLP2pOXG4oiF+PXkKIaEKHSD0W5G+ZvLzGe8YCrH AJ6ykvTIOTIVeepFMdemU3KqdQwYhayJQEd0Y3QzWbUt3MRZLwEHemQdb pDecoC8hcpApCM5ZeH/icSu1gL+aXlHipf1k9CxHtmD593qeoTGA/ZZF3 A==; X-IronPort-AV: E=McAfee;i="6600,9927,10955"; a="397171520" X-IronPort-AV: E=Sophos;i="6.05,200,1701158400"; d="scan'208";a="397171520" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Jan 2024 15:16:03 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10955"; a="1031147517" X-IronPort-AV: E=Sophos;i="6.05,200,1701158400"; d="scan'208";a="1031147517" Received: from guc-pnp-dev-box-1.fm.intel.com ([10.1.27.7]) by fmsmga006.fm.intel.com with ESMTP; 16 Jan 2024 15:16:03 -0800 From: Zhanjun Dong To: intel-xe@lists.freedesktop.org Subject: [PATCH v2] drm/xe/guc: Pre-allocate output nodes for extraction Date: Tue, 16 Jan 2024 15:15:59 -0800 Message-Id: <20240116231600.154097-9-zhanjun.dong@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240116231600.154097-1-zhanjun.dong@intel.com> References: <20240116231600.154097-1-zhanjun.dong@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" Pre-allocate a fixed number of empty nodes up front (at the time of ADS registration) that we can consume from or return to an internal cached list of nodes. Signed-off-by: Zhanjun Dong --- drivers/gpu/drm/xe/xe_guc_capture.c | 84 +++++++++++++++++++++++++++++ 1 file changed, 84 insertions(+) diff --git a/drivers/gpu/drm/xe/xe_guc_capture.c b/drivers/gpu/drm/xe/xe_guc_capture.c index 97c194d59041..c1ce55ae4634 100644 --- a/drivers/gpu/drm/xe/xe_guc_capture.c +++ b/drivers/gpu/drm/xe/xe_guc_capture.c @@ -479,6 +479,8 @@ xe_guc_capture_getlistsize(struct xe_guc *guc, u32 owner, u32 type, u32 classid, return guc_capture_getlistsize(guc, owner, type, classid, size, false); } +static void guc_capture_create_prealloc_nodes(struct xe_guc *guc); + int xe_guc_capture_getlist(struct xe_guc *guc, u32 owner, u32 type, u32 classid, void **outptr) { @@ -497,6 +499,12 @@ xe_guc_capture_getlist(struct xe_guc *guc, u32 owner, u32 type, u32 classid, voi return cache->status; } + /* + * ADS population of input registers is a good + * time to pre-allocate cachelist output nodes + */ + guc_capture_create_prealloc_nodes(guc); + ret = xe_guc_capture_getlistsize(guc, owner, type, classid, &size); if (ret) { cache->is_valid = true; @@ -897,6 +905,31 @@ guc_capture_get_prealloc_node(struct xe_guc *guc) return found; } +static struct __guc_capture_parsed_output * +guc_capture_alloc_one_node(struct xe_guc *guc) +{ + struct __guc_capture_parsed_output *new; + int i; + + new = kzalloc(sizeof(*new), GFP_KERNEL); + if (!new) + return NULL; + + for (i = 0; i < GUC_CAPTURE_LIST_TYPE_MAX; ++i) { + new->reginfo[i].regs = kcalloc(guc->capture->max_mmio_per_node, + sizeof(struct guc_mmio_reg), GFP_KERNEL); + if (!new->reginfo[i].regs) { + while (i) + kfree(new->reginfo[--i].regs); + kfree(new); + return NULL; + } + } + guc_capture_init_node(guc, new); + + return new; +} + static struct __guc_capture_parsed_output * guc_capture_clone_node(struct xe_guc *guc, struct __guc_capture_parsed_output *original, u32 keep_reglist_mask) @@ -937,6 +970,57 @@ guc_capture_clone_node(struct xe_guc *guc, struct __guc_capture_parsed_output *o return new; } +static void +__guc_capture_create_prealloc_nodes(struct xe_guc *guc) +{ + struct __guc_capture_parsed_output *node = NULL; + int i; + + for (i = 0; i < PREALLOC_NODES_MAX_COUNT; ++i) { + node = guc_capture_alloc_one_node(guc); + if (!node) { + xe_gt_warn(guc_to_gt(guc), "Register capture pre-alloc-cache failure\n"); + /* dont free the priors, use what we got and cleanup at shutdown */ + return; + } + guc_capture_add_node_to_cachelist(guc->capture, node); + } +} + +static int +guc_get_max_reglist_count(struct xe_guc *guc) +{ + int i, j, k, tmp, maxregcount = 0; + + for (i = 0; i < GUC_CAPTURE_LIST_INDEX_MAX; ++i) { + for (j = 0; j < GUC_CAPTURE_LIST_TYPE_MAX; ++j) { + for (k = 0; k < GUC_MAX_ENGINE_CLASSES; ++k) { + if (j == GUC_CAPTURE_LIST_TYPE_GLOBAL && k > 0) + continue; + + tmp = guc_cap_list_num_regs(guc->capture, i, j, k); + if (tmp > maxregcount) + maxregcount = tmp; + } + } + } + if (!maxregcount) + maxregcount = PREALLOC_NODES_DEFAULT_NUMREGS; + + return maxregcount; +} + +static void +guc_capture_create_prealloc_nodes(struct xe_guc *guc) +{ + /* skip if we've already done the pre-alloc */ + if (guc->capture->max_mmio_per_node) + return; + + guc->capture->max_mmio_per_node = guc_get_max_reglist_count(guc); + __guc_capture_create_prealloc_nodes(guc); +} + static int guc_capture_extract_reglists(struct xe_guc *guc, struct __guc_capture_bufstate *buf) { -- 2.34.1