From patchwork Sat Jul 10 01:20:14 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Vinay Belgaumkar X-Patchwork-Id: 12368255 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B66E4C07E9C for ; Sat, 10 Jul 2021 01:23:01 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 7C657613CA for ; Sat, 10 Jul 2021 01:23:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7C657613CA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E6EA76EAB6; Sat, 10 Jul 2021 01:23:00 +0000 (UTC) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTPS id 41EA46EAB3; Sat, 10 Jul 2021 01:22:59 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10040"; a="209619231" X-IronPort-AV: E=Sophos;i="5.84,228,1620716400"; d="scan'208";a="209619231" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jul 2021 18:22:58 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.84,228,1620716400"; d="scan'208";a="411439796" Received: from vbelgaum-ubuntu.fm.intel.com ([10.1.27.27]) by orsmga006.jf.intel.com with ESMTP; 09 Jul 2021 18:22:58 -0700 From: Vinay Belgaumkar To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Date: Fri, 9 Jul 2021 18:20:14 -0700 Message-Id: <20210710012026.19705-5-vinay.belgaumkar@intel.com> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20210710012026.19705-1-vinay.belgaumkar@intel.com> References: <20210710012026.19705-1-vinay.belgaumkar@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 04/16] drm/i915/guc/slpc: Lay out slpc init/enable/disable/fini X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Declare header and source files for SLPC, along with init and enable/disable function templates. Signed-off-by: Vinay Belgaumkar Signed-off-by: Sundaresan Sujaritha --- drivers/gpu/drm/i915/Makefile | 1 + drivers/gpu/drm/i915/gt/uc/intel_guc.h | 2 ++ drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c | 34 +++++++++++++++++++++ drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h | 16 ++++++++++ 4 files changed, 53 insertions(+) create mode 100644 drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c create mode 100644 drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index ab7679957623..d8eac4468df9 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -186,6 +186,7 @@ i915-y += gt/uc/intel_uc.o \ gt/uc/intel_guc_fw.o \ gt/uc/intel_guc_log.o \ gt/uc/intel_guc_log_debugfs.o \ + gt/uc/intel_guc_slpc.o \ gt/uc/intel_guc_submission.o \ gt/uc/intel_huc.o \ gt/uc/intel_huc_debugfs.o \ diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc.h index e5a456918b88..0dbbd9cf553f 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.h @@ -15,6 +15,7 @@ #include "intel_guc_ct.h" #include "intel_guc_log.h" #include "intel_guc_reg.h" +#include "intel_guc_slpc.h" #include "intel_uc_fw.h" #include "i915_utils.h" #include "i915_vma.h" @@ -30,6 +31,7 @@ struct intel_guc { struct intel_uc_fw fw; struct intel_guc_log log; struct intel_guc_ct ct; + struct intel_guc_slpc slpc; /* Global engine used to submit requests to GuC */ struct i915_sched_engine *sched_engine; diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c new file mode 100644 index 000000000000..c1f569d2300d --- /dev/null +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c @@ -0,0 +1,34 @@ +/* + * SPDX-License-Identifier: MIT + * + * Copyright © 2020 Intel Corporation + */ + +#include "intel_guc_slpc.h" + +int intel_guc_slpc_init(struct intel_guc_slpc *slpc) +{ + return 0; +} + +/* + * intel_guc_slpc_enable() - Start SLPC + * @slpc: pointer to intel_guc_slpc. + * + * SLPC is enabled by setting up the shared data structure and + * sending reset event to GuC SLPC. Initial data is setup in + * intel_guc_slpc_init. Here we send the reset event. We do + * not currently need a slpc_disable since this is taken care + * of automatically when a reset/suspend occurs and the guc + * channels are destroyed. + * + * Return: 0 on success, non-zero error code on failure. + */ +int intel_guc_slpc_enable(struct intel_guc_slpc *slpc) +{ + return 0; +} + +void intel_guc_slpc_fini(struct intel_guc_slpc *slpc) +{ +} diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h new file mode 100644 index 000000000000..74fd86769163 --- /dev/null +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.h @@ -0,0 +1,16 @@ +/* + * SPDX-License-Identifier: MIT + * + * Copyright © 2020 Intel Corporation + */ +#ifndef _INTEL_GUC_SLPC_H_ +#define _INTEL_GUC_SLPC_H_ + +struct intel_guc_slpc { +}; + +int intel_guc_slpc_init(struct intel_guc_slpc *slpc); +int intel_guc_slpc_enable(struct intel_guc_slpc *slpc); +void intel_guc_slpc_fini(struct intel_guc_slpc *slpc); + +#endif