From patchwork Wed Sep 13 06:30:38 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: 9950457 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 D9FC16024A for ; Wed, 13 Sep 2017 06:27:31 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CAFC32887A for ; Wed, 13 Sep 2017 06:27:31 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BFF1628C30; Wed, 13 Sep 2017 06:27:31 +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 40B662887A for ; Wed, 13 Sep 2017 06:27:31 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E58696E781; Wed, 13 Sep 2017 06:27:30 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id 342746E781 for ; Wed, 13 Sep 2017 06:27:29 +0000 (UTC) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 12 Sep 2017 23:27:29 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.42,386,1500966000"; d="scan'208";a="134784656" Received: from sakamble-desktop.iind.intel.com ([10.223.26.118]) by orsmga002.jf.intel.com with ESMTP; 12 Sep 2017 23:27:27 -0700 From: Sagar Arun Kamble To: intel-gfx@lists.freedesktop.org Date: Wed, 13 Sep 2017 12:00:38 +0530 Message-Id: <1505284240-6895-4-git-send-email-sagar.a.kamble@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1505284240-6895-1-git-send-email-sagar.a.kamble@intel.com> References: <1505284240-6895-1-git-send-email-sagar.a.kamble@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 4/6] drm/i915/guc: Fix GuC HW/SW state cleanup in unload path 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 From: "Kamble, Sagar A" Teardown of GuC HW/SW state was not properly done in unload path. guc_submission_disable was called as part of intel_uc_fini_hw which happens post gem_unload in the i915_driver_unload path. To differentiate the tasks during suspend and load w.r.t GuC this patch introduces new function i915_gem_unload which in addition to disabling GuC interfaces also disables GuC submission during which GuC communication with GuC is needed for destroying doorbell. i915_gem_unload is copy of i915_gem_suspend with difference w.r.t GuC operations. To achieve this, new helpers i915_gem_context_suspend and i915_gem_suspend_complete are prepared. This patch updates the functions responsibilities as follows: 1. intel_uc_unload: Disable all things that involve communication with GuC and internal operation of GuC firmware, currently submission. Post this disable all other state like guc_ggtt_invalidate, guc_communication and guc_interrupts. 2. intel_uc_fini_hw: Free up all UC related memory and other data. v2: Prepared i915_gem_unload. (Michal) v3: Moved guc_free_load_err_log past i915.enable_guc_loading check in intel_uc_cleanup_hw. Prepared i915_gem_contexts_suspend and i915_gem_suspend_complete that are used in the two paths i915_gem_suspend and i915_gem_unload. Unload specific actions like disabling GuC submission and GuC communication are being done in i915_gem_unload. Commit message update. (Michał Winiarski) Cc: Chris Wilson Cc: Michal Wajdeczko Cc: Daniele Ceraolo Spurio Cc: Michał Winiarski Signed-off-by: Sagar Arun Kamble --- drivers/gpu/drm/i915/i915_drv.c | 4 ++-- drivers/gpu/drm/i915/i915_drv.h | 1 + drivers/gpu/drm/i915/i915_gem.c | 52 ++++++++++++++++++++++++++++++++++++---- drivers/gpu/drm/i915/intel_guc.c | 13 ++++++++++ drivers/gpu/drm/i915/intel_guc.h | 1 + drivers/gpu/drm/i915/intel_uc.c | 18 ++++++-------- drivers/gpu/drm/i915/intel_uc.h | 1 + 7 files changed, 72 insertions(+), 18 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index d70a160..001bff2 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -682,7 +682,7 @@ static int i915_load_modeset_init(struct drm_device *dev) return 0; cleanup_gem: - if (i915_gem_suspend(dev_priv)) + if (i915_gem_unload(dev_priv)) DRM_ERROR("failed to idle hardware; continuing to unload!\n"); i915_gem_fini(dev_priv); cleanup_uc: @@ -1375,7 +1375,7 @@ void i915_driver_unload(struct drm_device *dev) i915_driver_unregister(dev_priv); - if (i915_gem_suspend(dev_priv)) + if (i915_gem_unload(dev_priv)) DRM_ERROR("failed to idle hardware; continuing to unload!\n"); intel_display_power_get(dev_priv, POWER_DOMAIN_INIT); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index f6495f5..47e4561 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -3669,6 +3669,7 @@ void i915_gem_reset_engine(struct intel_engine_cs *engine, int i915_gem_wait_for_idle(struct drm_i915_private *dev_priv, unsigned int flags); int __must_check i915_gem_suspend(struct drm_i915_private *dev_priv); +int __must_check i915_gem_unload(struct drm_i915_private *dev_priv); void i915_gem_resume(struct drm_i915_private *dev_priv); int i915_gem_fault(struct vm_fault *vmf); int i915_gem_object_wait(struct drm_i915_gem_object *obj, diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 306e42a..29509d0 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -4545,12 +4545,11 @@ void i915_gem_sanitize(struct drm_i915_private *i915) } } -int i915_gem_suspend(struct drm_i915_private *dev_priv) +static int i915_gem_contexts_suspend(struct drm_i915_private *dev_priv) { struct drm_device *dev = &dev_priv->drm; int ret; - intel_runtime_pm_get(dev_priv); intel_suspend_gt_powersave(dev_priv); mutex_lock(&dev->struct_mutex); @@ -4577,8 +4576,15 @@ int i915_gem_suspend(struct drm_i915_private *dev_priv) i915_gem_contexts_lost(dev_priv); mutex_unlock(&dev->struct_mutex); - intel_guc_system_suspend(&dev_priv->guc); + return 0; + +err_unlock: + mutex_unlock(&dev->struct_mutex); + return ret; +} +static void i915_gem_suspend_complete(struct drm_i915_private *dev_priv) +{ cancel_delayed_work_sync(&dev_priv->gpu_error.hangcheck_work); cancel_delayed_work_sync(&dev_priv->gt.retire_work); @@ -4615,12 +4621,48 @@ int i915_gem_suspend(struct drm_i915_private *dev_priv) * machine in an unusable condition. */ i915_gem_sanitize(dev_priv); +} + +int i915_gem_suspend(struct drm_i915_private *dev_priv) +{ + int ret; + + intel_runtime_pm_get(dev_priv); + + ret = i915_gem_contexts_suspend(dev_priv); + if (ret && ret != -EIO) + goto err_suspend; + + intel_guc_system_suspend(&dev_priv->guc); + + i915_gem_suspend_complete(dev_priv); intel_runtime_pm_put(dev_priv); return 0; -err_unlock: - mutex_unlock(&dev->struct_mutex); +err_suspend: + intel_runtime_pm_put(dev_priv); + return ret; +} + +int i915_gem_unload(struct drm_i915_private *dev_priv) +{ + int ret; + + intel_runtime_pm_get(dev_priv); + + ret = i915_gem_contexts_suspend(dev_priv); + if (ret && ret != -EIO) + goto err_suspend; + + intel_uc_unload(dev_priv); + + i915_gem_suspend_complete(dev_priv); + + intel_runtime_pm_put(dev_priv); + return 0; + +err_suspend: intel_runtime_pm_put(dev_priv); return ret; } diff --git a/drivers/gpu/drm/i915/intel_guc.c b/drivers/gpu/drm/i915/intel_guc.c index b957dab..178d8e4 100644 --- a/drivers/gpu/drm/i915/intel_guc.c +++ b/drivers/gpu/drm/i915/intel_guc.c @@ -333,3 +333,16 @@ int intel_guc_system_resume(struct intel_guc *guc) */ return ret; } + +void intel_guc_unload(struct intel_guc *guc) +{ + struct drm_i915_private *dev_priv = guc_to_i915(guc); + struct drm_device *dev = &dev_priv->drm; + + if (i915.enable_guc_submission) { + mutex_lock(&dev->struct_mutex); + i915_guc_submission_disable(dev_priv); + mutex_unlock(&dev->struct_mutex); + intel_guc_reset_prepare(guc); + } +} diff --git a/drivers/gpu/drm/i915/intel_guc.h b/drivers/gpu/drm/i915/intel_guc.h index 02ea0d1..32151ad4 100644 --- a/drivers/gpu/drm/i915/intel_guc.h +++ b/drivers/gpu/drm/i915/intel_guc.h @@ -155,6 +155,7 @@ static inline u32 guc_ggtt_offset(struct i915_vma *vma) int intel_guc_runtime_resume(struct intel_guc *guc); int intel_guc_system_suspend(struct intel_guc *guc); int intel_guc_system_resume(struct intel_guc *guc); +void intel_guc_unload(struct intel_guc *guc); /* intel_guc_loader.c */ int intel_guc_select_fw(struct intel_guc *guc); diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c index 30c004c..65561b4 100644 --- a/drivers/gpu/drm/i915/intel_uc.c +++ b/drivers/gpu/drm/i915/intel_uc.c @@ -379,22 +379,18 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv) return ret; } -void intel_uc_fini_hw(struct drm_i915_private *dev_priv) +void intel_uc_unload(struct drm_i915_private *dev_priv) { - guc_free_load_err_log(&dev_priv->guc); + intel_guc_unload(&dev_priv->guc); +} +void intel_uc_fini_hw(struct drm_i915_private *dev_priv) +{ if (!i915.enable_guc_loading) return; - if (i915.enable_guc_submission) - i915_guc_submission_disable(dev_priv); - - intel_guc_disable_communication(&dev_priv->guc); + guc_free_load_err_log(&dev_priv->guc); - if (i915.enable_guc_submission) { - gen9_disable_guc_interrupts(dev_priv); + if (i915.enable_guc_submission) i915_guc_submission_fini(dev_priv); - } - - i915_ggtt_disable_guc(dev_priv); } diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h index 0d346ef..0413a66 100644 --- a/drivers/gpu/drm/i915/intel_uc.h +++ b/drivers/gpu/drm/i915/intel_uc.h @@ -104,6 +104,7 @@ struct intel_uc_fw { void intel_uc_init_fw(struct drm_i915_private *dev_priv); void intel_uc_fini_fw(struct drm_i915_private *dev_priv); int intel_uc_init_hw(struct drm_i915_private *dev_priv); +void intel_uc_unload(struct drm_i915_private *dev_priv); void intel_uc_fini_hw(struct drm_i915_private *dev_priv); #endif