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 24BFCC25B7A for ; Thu, 23 May 2024 19:23:14 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 033D510EB7D; Thu, 23 May 2024 19:23:12 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="OYgHEXuf"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4393810EC3E for ; Thu, 23 May 2024 19:22:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1716492179; x=1748028179; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=TBa9fhDRj+EaCuQnjqbAcJ+fLcgxBGLsqrKBWT2yQfQ=; b=OYgHEXuf5hPUFBfnzmmwRk+ph6Xjao8HlzmorZ20pHXoPq8+1cYc4TK5 l8g9laIbNQaZ3UhO1gF3vPVHNitsPwL2D6KM4d+WrH9oVNJ79OKcZ1c+H K0dWhclZVAnBLMRl13QXEnZsUSRYRC+TUJ4r8B9g9aJ/p65vu7VCNxtVh xfgwzPKd1YZWbZyH5IM9cn0pJYS/UjhaeZp8a3MEbiLDJadpl6BHwDNMQ qOAARsQGmA3HapfADEyVyw7aAt3uMKbz+TJv/JBLJ3JlSce1hf8DUia9F VSe/sQYGSyhLNIvLNycTzOSaPC5GTx/JJhvzoWxwkvUKvHBTZJ3HPthkh g==; X-CSE-ConnectionGUID: qOcXNBiHTT2fgPCIJCYrGw== X-CSE-MsgGUID: uisreZlPRZmdbnEA2kkDaw== X-IronPort-AV: E=McAfee;i="6600,9927,11081"; a="13023477" X-IronPort-AV: E=Sophos;i="6.08,183,1712646000"; d="scan'208";a="13023477" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 May 2024 12:22:55 -0700 X-CSE-ConnectionGUID: mFGWfKLXQZmKp6nS0Ecz5Q== X-CSE-MsgGUID: IXRncN7zQ8WhSxOorcYA6g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,183,1712646000"; d="scan'208";a="33848850" Received: from mwajdecz-mobl.ger.corp.intel.com ([10.246.19.248]) by fmviesa009-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 May 2024 12:22:54 -0700 From: Michal Wajdeczko To: intel-xe@lists.freedesktop.org Subject: [PATCH 3/6] drm/xe/vf: Obtain value of GMDID register from GuC Date: Thu, 23 May 2024 21:22:37 +0200 Message-Id: <20240523192240.844-4-michal.wajdeczko@intel.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20240523192240.844-1-michal.wajdeczko@intel.com> References: <20240523192240.844-1-michal.wajdeczko@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" VFs don't have access to the GMDID register and must obtain it value using GuC VF ABI KLV query. Add function for doing that. Signed-off-by: Michal Wajdeczko --- drivers/gpu/drm/xe/xe_gt_sriov_vf.c | 29 +++++++++++++++++++++++++++++ drivers/gpu/drm/xe/xe_gt_sriov_vf.h | 1 + 2 files changed, 30 insertions(+) diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_vf.c b/drivers/gpu/drm/xe/xe_gt_sriov_vf.c index 237486a80fb5..5b8771f831f7 100644 --- a/drivers/gpu/drm/xe/xe_gt_sriov_vf.c +++ b/drivers/gpu/drm/xe/xe_gt_sriov_vf.c @@ -284,6 +284,35 @@ static int guc_action_query_single_klv64(struct xe_guc *guc, u32 key, u64 *value return 0; } +/** + * xe_gt_sriov_vf_gmdid - Query GMDID over MMIO. + * @gt: the &xe_gt + * + * This function is for VF use only. + * + * Return: value of GMDID KLV on success or 0 on failure. + */ +u32 xe_gt_sriov_vf_gmdid(struct xe_gt *gt) +{ + const char *type = xe_gt_is_media_type(gt) ? "media" : "graphics"; + struct xe_guc *guc = >->uc.guc; + u32 value; + int err; + + xe_gt_assert(gt, IS_SRIOV_VF(gt_to_xe(gt))); + xe_gt_assert(gt, gt->sriov.vf.guc_version.major > 1 || gt->sriov.vf.guc_version.minor >= 2); + + err = guc_action_query_single_klv32(guc, GUC_KLV_GLOBAL_CFG_GMD_ID_KEY, &value); + if (unlikely(err)) { + xe_gt_sriov_err(gt, "Failed to obtain %s GMDID (%pe)\n", + type, ERR_PTR(err)); + return 0; + } + + xe_gt_sriov_dbg(gt, "%s GMDID = %#x\n", type, value); + return value; +} + static int vf_get_ggtt_info(struct xe_gt *gt) { struct xe_gt_sriov_vf_selfconfig *config = >->sriov.vf.self_config; diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_vf.h b/drivers/gpu/drm/xe/xe_gt_sriov_vf.h index be69c1025320..0391ed72a570 100644 --- a/drivers/gpu/drm/xe/xe_gt_sriov_vf.h +++ b/drivers/gpu/drm/xe/xe_gt_sriov_vf.h @@ -17,6 +17,7 @@ int xe_gt_sriov_vf_query_config(struct xe_gt *gt); int xe_gt_sriov_vf_connect(struct xe_gt *gt); int xe_gt_sriov_vf_query_runtime(struct xe_gt *gt); +u32 xe_gt_sriov_vf_gmdid(struct xe_gt *gt); u16 xe_gt_sriov_vf_guc_ids(struct xe_gt *gt); u32 xe_gt_sriov_vf_read32(struct xe_gt *gt, struct xe_reg reg); -- 2.43.0