From patchwork Wed Sep 20 17:38:20 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: 9961963 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 1B3B060234 for ; Wed, 20 Sep 2017 17:35:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 063282907C for ; Wed, 20 Sep 2017 17:35:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id EF7B9291E0; Wed, 20 Sep 2017 17:35:08 +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 AB2E42907C for ; Wed, 20 Sep 2017 17:35:08 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 564796E09A; Wed, 20 Sep 2017 17:35:08 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0B6726E09A for ; Wed, 20 Sep 2017 17:35:07 +0000 (UTC) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 20 Sep 2017 10:35:06 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.42,422,1500966000"; d="scan'208";a="137585783" Received: from sakamble-desktop.iind.intel.com ([10.223.26.118]) by orsmga002.jf.intel.com with ESMTP; 20 Sep 2017 10:35:05 -0700 From: Sagar Arun Kamble To: intel-gfx@lists.freedesktop.org Date: Wed, 20 Sep 2017 23:08:20 +0530 Message-Id: <1505929104-28823-6-git-send-email-sagar.a.kamble@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1505929104-28823-1-git-send-email-sagar.a.kamble@intel.com> References: <1505929104-28823-1-git-send-email-sagar.a.kamble@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v4 5/9] 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 operarions 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. Cc: Michal Wajdeczko Cc: Michał Winiarski Signed-off-by: Sagar Arun Kamble --- drivers/gpu/drm/i915/i915_gem.c | 2 ++ drivers/gpu/drm/i915/intel_uc.c | 14 ++++++++++++++ drivers/gpu/drm/i915/intel_uc.h | 1 + 3 files changed, 17 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index dd56d45..76e1bb2 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -2847,6 +2847,8 @@ 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 0c7e45c7..aac8526 100644 --- a/drivers/gpu/drm/i915/intel_uc.c +++ b/drivers/gpu/drm/i915/intel_uc.c @@ -671,3 +671,17 @@ int intel_uc_resume(struct drm_i915_private *dev_priv) { return 0; } + +int intel_uc_reset_prepare(struct drm_i915_private *dev_priv) +{ + int ret; + + if (i915.enable_guc_submission) + i915_guc_submission_disable(dev_priv); + + ret = intel_uc_runtime_suspend(dev_priv); + if (ret) + return ret; + + return 0; +} diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h index 5f49d13..069c2b2 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); int intel_guc_send_nop(struct intel_guc *guc, const u32 *action, u32 len); int intel_guc_send_mmio(struct intel_guc *guc, const u32 *action, u32 len);