From patchwork Tue Sep 26 13:24:44 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: sagar.a.kamble@intel.com X-Patchwork-Id: 9972009 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id AB4B460365 for ; Tue, 26 Sep 2017 13:22:23 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AC00E2902A for ; Tue, 26 Sep 2017 13:22:23 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AAC3129051; Tue, 26 Sep 2017 13:22:23 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 57DA82902A for ; Tue, 26 Sep 2017 13:21:36 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1C8616E55E; Tue, 26 Sep 2017 13:21:35 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id 270896E55C for ; Tue, 26 Sep 2017 13:21:33 +0000 (UTC) Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 26 Sep 2017 06:21:33 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos; i="5.42,440,1500966000"; d="scan'208"; a="1223896783" Received: from sakamble-desktop.iind.intel.com ([10.223.26.118]) by fmsmga002.fm.intel.com with ESMTP; 26 Sep 2017 06:21:31 -0700 From: Sagar Arun Kamble To: intel-gfx@lists.freedesktop.org Date: Tue, 26 Sep 2017 18:54:44 +0530 Message-Id: <1506432285-14979-7-git-send-email-sagar.a.kamble@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1506432285-14979-1-git-send-email-sagar.a.kamble@intel.com> References: <1506432285-14979-1-git-send-email-sagar.a.kamble@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v8 7/8] drm/i915/guc: Disable GuC submission and suspend it prior to i915 reset X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 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" X-Virus-Scanned: ClamAV using ClamSMTP Before i915 reset, we need to disable GuC submission and suspend GuC operations as it is recreated during intel_uc_init_hw. We can't reuse the intel_uc_suspend functionality as reset path already holds struct_mutex. v2: Rebase w.r.t removal of GuC code restructuring. Updated reset_prepare function as struct_mutex is not needed. v3: Fixed typo in commit message. Made return from intel_uc_reset_prepare simpler. (Michal) Rebase w.r.t i915_modparams change. Cc: Michal Wajdeczko Cc: Michał Winiarski Reviewed-by: Michal Wajdeczko Signed-off-by: Sagar Arun Kamble --- drivers/gpu/drm/i915/i915_gem.c | 2 ++ drivers/gpu/drm/i915/intel_uc.c | 8 ++++++++ drivers/gpu/drm/i915/intel_uc.h | 1 + 3 files changed, 11 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 0d9a107..64b278c 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -2882,6 +2882,8 @@ int i915_gem_reset_prepare(struct drm_i915_private *dev_priv) i915_gem_revoke_fences(dev_priv); + intel_uc_reset_prepare(dev_priv); + return err; } diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c index d710f0d..aec3f6b 100644 --- a/drivers/gpu/drm/i915/intel_uc.c +++ b/drivers/gpu/drm/i915/intel_uc.c @@ -562,6 +562,14 @@ int intel_uc_resume(struct drm_i915_private *dev_priv) return 0; } +int intel_uc_reset_prepare(struct drm_i915_private *dev_priv) +{ + if (i915_modparams.enable_guc_submission) + i915_guc_submission_disable(dev_priv); + + return intel_uc_runtime_suspend(dev_priv); +} + int intel_guc_send_nop(struct intel_guc *guc, const u32 *action, u32 len) { WARN(1, "Unexpected send: action=%#x\n", *action); diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h index 6163ff9..9b12f3c 100644 --- a/drivers/gpu/drm/i915/intel_uc.h +++ b/drivers/gpu/drm/i915/intel_uc.h @@ -212,6 +212,7 @@ struct intel_huc { int intel_uc_runtime_resume(struct drm_i915_private *dev_priv); int intel_uc_suspend(struct drm_i915_private *dev_priv); int intel_uc_resume(struct drm_i915_private *dev_priv); +int intel_uc_reset_prepare(struct drm_i915_private *dev_priv); int intel_guc_sample_forcewake(struct intel_guc *guc); void intel_guc_sanitize(struct intel_guc *guc); int intel_guc_send_nop(struct intel_guc *guc, const u32 *action, u32 len);