From patchwork Thu Mar 10 00:34:04 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Atwood X-Patchwork-Id: 12775741 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 BB8C0C433FE for ; Thu, 10 Mar 2022 00:34:30 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2E3AA10E58C; Thu, 10 Mar 2022 00:34:29 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1FED110E1DC; Thu, 10 Mar 2022 00:34:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1646872467; x=1678408467; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=sQDEtC45tv0bqxqFrd928tIIioygMY7+fgvYolKBUfA=; b=M9x0rO8dWerrtn3zxNEwMs1PA6ehI/+JtsmcNO5Gju6ubkYboJGZBmuQ 7NmagYcrnttSHWF6DffFMStOvxYVS22gCvvbJol8XWSaSUJVlI7YnZWA4 DV8DPgTxvw3d9vIjhlZ6qLg753mfQsN+BqOT20x51bYZJSrq4PyuNF9xv hIOf30BLhhn1en/TM7xkLsPRhQRlilWPpcjX3kRDYLH6XtQLN4Jg0BU4w QZHkafykZ6/m+1ZAme+9n88SWJaaVmeGLKvSPuB6uKo19l3kb7ePbM4U1 RPiOkDw6RLbzF5BYqOUsfaG+vXy+oI11/NNc1Gx7MQpPizBjodrLu2YsX w==; X-IronPort-AV: E=McAfee;i="6200,9189,10281"; a="252693330" X-IronPort-AV: E=Sophos;i="5.90,169,1643702400"; d="scan'208";a="252693330" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Mar 2022 16:34:08 -0800 X-IronPort-AV: E=Sophos;i="5.90,169,1643702400"; d="scan'208";a="712156878" Received: from slsmith2-mobl.amr.corp.intel.com (HELO msatwood-mobl.intel.com) ([10.209.13.34]) by orsmga005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Mar 2022 16:34:07 -0800 From: Matt Atwood To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH] drm/i915/uapi: Add DRM_I915_QUERY_GEOMETRY_SUBSLICES Date: Wed, 9 Mar 2022 16:34:04 -0800 Message-Id: <20220310003404.27499-1-matthew.s.atwood@intel.com> X-Mailer: git-send-email 2.21.3 MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ashutosh Dixit , Matt Atwood Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Newer platforms have DSS that aren't necessarily available for both geometry and compute, two queries will need to exist. This introduces the first, when passing a valid engine class and engine instance in the flags returns a topology describing geometry. Cc: Ashutosh Dixit Cc: Matt Roper UMD (mesa): https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14143 Signed-off-by: Matt Atwood --- drivers/gpu/drm/i915/i915_query.c | 68 ++++++++++++++++++++++--------- include/uapi/drm/i915_drm.h | 24 +++++++---- 2 files changed, 65 insertions(+), 27 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_query.c b/drivers/gpu/drm/i915/i915_query.c index 2dfbc22857a3..0cc2670ae09c 100644 --- a/drivers/gpu/drm/i915/i915_query.c +++ b/drivers/gpu/drm/i915/i915_query.c @@ -9,6 +9,7 @@ #include "i915_drv.h" #include "i915_perf.h" #include "i915_query.h" +#include "gt/intel_engine_user.h" #include static int copy_query_item(void *query_hdr, size_t query_sz, @@ -28,36 +29,30 @@ static int copy_query_item(void *query_hdr, size_t query_sz, return 0; } -static int query_topology_info(struct drm_i915_private *dev_priv, - struct drm_i915_query_item *query_item) +static int fill_topology_info(const struct sseu_dev_info *sseu, + struct drm_i915_query_item *query_item, + const u8 *subslice_mask) { - const struct sseu_dev_info *sseu = &to_gt(dev_priv)->info.sseu; struct drm_i915_query_topology_info topo; u32 slice_length, subslice_length, eu_length, total_length; int ret; - if (query_item->flags != 0) - return -EINVAL; + BUILD_BUG_ON(sizeof(u8) != sizeof(sseu->slice_mask)); if (sseu->max_slices == 0) return -ENODEV; - BUILD_BUG_ON(sizeof(u8) != sizeof(sseu->slice_mask)); - slice_length = sizeof(sseu->slice_mask); subslice_length = sseu->max_slices * sseu->ss_stride; eu_length = sseu->max_slices * sseu->max_subslices * sseu->eu_stride; total_length = sizeof(topo) + slice_length + subslice_length + eu_length; - ret = copy_query_item(&topo, sizeof(topo), total_length, - query_item); + ret = copy_query_item(&topo, sizeof(topo), total_length, query_item); + if (ret != 0) return ret; - if (topo.flags != 0) - return -EINVAL; - memset(&topo, 0, sizeof(topo)); topo.max_slices = sseu->max_slices; topo.max_subslices = sseu->max_subslices; @@ -69,27 +64,61 @@ static int query_topology_info(struct drm_i915_private *dev_priv, topo.eu_stride = sseu->eu_stride; if (copy_to_user(u64_to_user_ptr(query_item->data_ptr), - &topo, sizeof(topo))) + &topo, sizeof(topo))) return -EFAULT; if (copy_to_user(u64_to_user_ptr(query_item->data_ptr + sizeof(topo)), - &sseu->slice_mask, slice_length)) + &sseu->slice_mask, slice_length)) return -EFAULT; if (copy_to_user(u64_to_user_ptr(query_item->data_ptr + - sizeof(topo) + slice_length), - sseu->subslice_mask, subslice_length)) + sizeof(topo) + slice_length), + subslice_mask, subslice_length)) return -EFAULT; if (copy_to_user(u64_to_user_ptr(query_item->data_ptr + - sizeof(topo) + - slice_length + subslice_length), - sseu->eu_mask, eu_length)) + sizeof(topo) + + slice_length + subslice_length), + sseu->eu_mask, eu_length)) return -EFAULT; return total_length; } +static int query_topology_info(struct drm_i915_private *dev_priv, + struct drm_i915_query_item *query_item) +{ + const struct sseu_dev_info *sseu = &to_gt(dev_priv )->info.sseu; + + if (query_item->flags != 0) + return -EINVAL; + + return fill_topology_info(sseu, query_item, sseu->subslice_mask); +} + +static int query_geometry_subslices(struct drm_i915_private *i915, + struct drm_i915_query_item *query_item) +{ + const struct sseu_dev_info *sseu; + struct intel_engine_cs *engine; + u8 engine_class, engine_instance; + + if (GRAPHICS_VER_FULL(i915) < IP_VER(12, 50)) + return -ENODEV; + + engine_class = query_item->flags & 0xFF; + engine_instance = (query_item->flags >>8) & 0xFF; + + engine = intel_engine_lookup_user(i915, engine_class, engine_instance); + + if(!engine) + return -EINVAL; + + sseu = &engine->gt->info.sseu; + + return fill_topology_info(sseu, query_item, sseu->geometry_subslice_mask); +} + static int query_engine_info(struct drm_i915_private *i915, struct drm_i915_query_item *query_item) @@ -485,6 +514,7 @@ static int (* const i915_query_funcs[])(struct drm_i915_private *dev_priv, query_engine_info, query_perf_config, query_memregion_info, + query_geometry_subslices, }; int i915_query_ioctl(struct drm_device *dev, void *data, struct drm_file *file) diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h index 05c3642aaece..ac75d8b85803 100644 --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -2687,10 +2687,11 @@ struct drm_i915_perf_oa_config { struct drm_i915_query_item { /** @query_id: The id for this query */ __u64 query_id; -#define DRM_I915_QUERY_TOPOLOGY_INFO 1 -#define DRM_I915_QUERY_ENGINE_INFO 2 -#define DRM_I915_QUERY_PERF_CONFIG 3 -#define DRM_I915_QUERY_MEMORY_REGIONS 4 +#define DRM_I915_QUERY_TOPOLOGY_INFO 1 +#define DRM_I915_QUERY_ENGINE_INFO 2 +#define DRM_I915_QUERY_PERF_CONFIG 3 +#define DRM_I915_QUERY_MEMORY_REGIONS 4 +#define DRM_I915_QUERY_GEOMETRY_SUBSLICES 5 /* Must be kept compact -- no holes and well documented */ /** @@ -2714,6 +2715,9 @@ struct drm_i915_query_item { * - DRM_I915_QUERY_PERF_CONFIG_LIST * - DRM_I915_QUERY_PERF_CONFIG_DATA_FOR_UUID * - DRM_I915_QUERY_PERF_CONFIG_FOR_UUID + * + * When query_id == DRM_I915_QUERY_GEOMETRY_SUBSLICES must have bits 0:7 set + * as a valid engine class, and bits 8:15 must have a valid engine instance. */ __u32 flags; #define DRM_I915_QUERY_PERF_CONFIG_LIST 1 @@ -2772,16 +2776,20 @@ struct drm_i915_query { }; /* - * Data written by the kernel with query DRM_I915_QUERY_TOPOLOGY_INFO : + * Data written by the kernel with query DRM_I915_QUERY_TOPOLOGY_INFO, + * DRM_I915_QUERY_GEOMETRY_SUBSLICE: * * data: contains the 3 pieces of information : * - * - the slice mask with one bit per slice telling whether a slice is - * available. The availability of slice X can be queried with the following - * formula : + * - For DRM_I915_QUERY_TOPOLOGY_INFO the slice mask with one bit per slice + * telling whether a slice is available. The availability of slice X can be + * queried with the following formula : * * (data[X / 8] >> (X % 8)) & 1 * + * - For DRM_I915_QUERY_GEOMETRY_SUBSLICES Slices are equal to 1 and this field + * is not used. + * * - the subslice mask for each slice with one bit per subslice telling * whether a subslice is available. Gen12 has dual-subslices, which are * similar to two gen11 subslices. For gen12, this array represents dual-