From patchwork Fri Aug 22 03:11:30 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ben Widawsky X-Patchwork-Id: 4760531 Return-Path: X-Original-To: patchwork-intel-gfx@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 105A19F344 for ; Fri, 22 Aug 2014 03:12:53 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 1E1812018E for ; Fri, 22 Aug 2014 03:12:52 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 289F020155 for ; Fri, 22 Aug 2014 03:12:51 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A38376E854; Thu, 21 Aug 2014 20:12:50 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTP id 1C7CC6E853 for ; Thu, 21 Aug 2014 20:12:49 -0700 (PDT) Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga103.fm.intel.com with ESMTP; 21 Aug 2014 20:05:00 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,862,1389772800"; d="scan'208";a="375575682" Received: from unknown (HELO ironside.intel.com) ([10.255.12.192]) by FMSMGA003.fm.intel.com with ESMTP; 21 Aug 2014 20:08:55 -0700 From: Ben Widawsky To: Intel GFX Date: Thu, 21 Aug 2014 20:11:30 -0700 Message-Id: <1408677155-1840-8-git-send-email-benjamin.widawsky@intel.com> X-Mailer: git-send-email 2.0.4 In-Reply-To: <1408677155-1840-1-git-send-email-benjamin.widawsky@intel.com> References: <1408677155-1840-1-git-send-email-benjamin.widawsky@intel.com> Cc: Ben Widawsky , Ben Widawsky Subject: [Intel-gfx] [PATCH 07/68] drm/i915/error: Do a better job of disambiguating VMAs X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Spam-Status: No, score=-4.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Some of the original PPGTT patches in this area where unmerged, and this left a lot of confusion in our error capture with regard to which vm/obj we want to capture. There have been at least a couple of patches from Chris, and myself to try to fix this up; so here is another shot. Nobody running without full PPGTT is effected by this, and that is probably why nobody has bothered to fix it yet. Instead of using any of the global lists to find the VMAs we want to capture, we use the union of the active, and the inactive list in the VM. This allows us to replace our capture_bo with capture_vma, and know all the VMAs we want to capture are valid. I could have probably figured out a way to reuse mm_list. As we've had bugs here before in the shrinker, I think the best way forward is to get it working, and then optimize it later. Signed-off-by: Ben Widawsky --- drivers/gpu/drm/i915/i915_gem_gtt.c | 1 + drivers/gpu/drm/i915/i915_gem_gtt.h | 2 ++ drivers/gpu/drm/i915/i915_gpu_error.c | 39 ++++++++++++++++++++++------------- 3 files changed, 28 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index b4b7cfd..f2ece5f 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -2105,6 +2105,7 @@ static struct i915_vma *__i915_gem_vma_create(struct drm_i915_gem_object *obj, return ERR_PTR(-ENOMEM); INIT_LIST_HEAD(&vma->vma_link); + INIT_LIST_HEAD(&vma->pin_capture_link); INIT_LIST_HEAD(&vma->mm_list); INIT_LIST_HEAD(&vma->exec_list); vma->vm = vm; diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h index 666c938..379cf16ea 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.h +++ b/drivers/gpu/drm/i915/i915_gem_gtt.h @@ -126,6 +126,8 @@ struct i915_vma { struct list_head vma_link; /* Link in the object's VMA list */ + struct list_head pin_capture_link; /* Link in the error capture */ + /** This vma's place in the batchbuffer or on the eviction list */ struct list_head exec_list; diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c index 470cc97..5827915 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.c +++ b/drivers/gpu/drm/i915/i915_gpu_error.c @@ -685,14 +685,14 @@ static u32 capture_active_bo(struct drm_i915_error_buffer *err, static u32 capture_pinned_bo(struct drm_i915_error_buffer *err, int count, struct list_head *head) { - struct drm_i915_gem_object *obj; + struct i915_vma *vma; int i = 0; - list_for_each_entry(obj, head, global_list) { - if (!i915_gem_obj_is_pinned(obj)) + list_for_each_entry(vma, head, pin_capture_link) { + if (!i915_gem_obj_is_pinned(vma->obj)) continue; - capture_bo(err++, obj); + capture_bo(err++, vma->obj); if (++i == count) break; } @@ -1047,21 +1047,32 @@ static void i915_gem_capture_vm(struct drm_i915_private *dev_priv, const int vm_ndx) { struct drm_i915_error_buffer *active_bo = NULL, *pinned_bo = NULL; - struct drm_i915_gem_object *obj; struct i915_vma *vma; int active_vma_count = 0; + int vma_pin_count = 0; + LIST_HEAD(pinned_vma); - list_for_each_entry(vma, &vm->active_list, mm_list) + list_for_each_entry(vma, &vm->active_list, mm_list) { active_vma_count++; + if (vma->pin_count) { + vma_pin_count++; + list_move_tail(&vma->pin_capture_link, &pinned_vma); + } + } - error->active_bo_count[vm_ndx] = active_vma_count; - - list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) - if (i915_gem_obj_is_pinned(obj)) - active_vma_count++; + list_for_each_entry(vma, &vm->inactive_list, mm_list) { + /* Certain objects may be on the inactive list, but pinned, when + * in the global GGTT. */ + if (WARN_ON(!i915_is_ggtt(vm) && + vma->pin_count && + !(vma->exec_entry->flags & (1<<31)))) { /* FIXME: need the actual flag */ + vma_pin_count++; + list_move_tail(&vma->pin_capture_link, &pinned_vma); + } + } - /* XXX: this is an incorrect measurement of pinned BOs */ - error->pinned_bo_count[vm_ndx] = active_vma_count - error->active_bo_count[vm_ndx]; + error->active_bo_count[vm_ndx] = active_vma_count; + error->pinned_bo_count[vm_ndx] = vma_pin_count; if (active_vma_count) { active_bo = kcalloc(active_vma_count, sizeof(*active_bo), GFP_ATOMIC); @@ -1079,7 +1090,7 @@ static void i915_gem_capture_vm(struct drm_i915_private *dev_priv, error->pinned_bo_count[vm_ndx] = capture_pinned_bo(pinned_bo, error->pinned_bo_count[vm_ndx], - &dev_priv->mm.bound_list); + &pinned_vma); error->active_bo[vm_ndx] = active_bo; error->pinned_bo[vm_ndx] = pinned_bo; }