From patchwork Wed Mar 16 22:49:43 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matt Atwood X-Patchwork-Id: 12783244 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 3636CC433EF for ; Wed, 16 Mar 2022 22:49:50 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id F373010E66E; Wed, 16 Mar 2022 22:49:48 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id CFF1B10E66C; Wed, 16 Mar 2022 22:49:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1647470987; x=1679006987; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=3uZAjARw/6PMcpq1YfMXT+F98av0HAL7PoFw3v0EjqE=; b=d+qH0Av+WHgkwcwk2m50BKRgjQBCYQOHU5BNp6/XX7X+har6F24KNeoB pKOaBr6v1143zaYRGgPhT1Sv9+k+Emu+ih/Z7OvCuU4/CzfK9PiYBaaEW GJZA71Ftgzm5eM3pmlQ/4Pash0QEHmeHU7ti0zKRXUhIDbXbZGgUZ5Saf 4q+flp8kkVTk9J/9Wa+VDajvdZL5shzSqxhypBuEhdKPdN9xYKB6q6e5n S/ADQnH0STrhAGwYL/qfn/4egdeBUApnpTKfbucNc05/ED5oWrNYyPlFE 9x/N4N3o4M3DOvmiYDNa1GUwuhyvFDL2OAZS5m6qbrhn+zDD7W2Uny5nL w==; X-IronPort-AV: E=McAfee;i="6200,9189,10288"; a="254287648" X-IronPort-AV: E=Sophos;i="5.90,187,1643702400"; d="scan'208";a="254287648" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Mar 2022 15:49:47 -0700 X-IronPort-AV: E=Sophos;i="5.90,187,1643702400"; d="scan'208";a="690748355" Received: from spalurix-mobl.amr.corp.intel.com (HELO msatwood-mobl.intel.com) ([10.209.38.70]) by fmsmga001-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Mar 2022 15:49:47 -0700 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, 16 Mar 2022 15:49:43 -0700 Message-Id: <20220316224943.27679-1-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. v2: fix white space errors v3: change flags from hosting 2 8 bit numbers to holding a i915_engine_class_instance struct Cc: Ashutosh Dixit Cc: Matt Roper Cc: Joonas Lahtinen 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..fcb374201edb 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; + struct i915_engine_class_instance classinstance; + + if (GRAPHICS_VER_FULL(i915) < IP_VER(12, 50)) + return -ENODEV; + + classinstance = *((struct i915_engine_class_instance *)&query_item->flags); + + engine = intel_engine_lookup_user(i915, (u8) classinstance.engine_class, + (u8) classinstance.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..b539c83a4034 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 a valid + * i915_engine_class_instance struct. */ __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-