From patchwork Fri Jul 5 21:41:03 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ben Widawsky X-Patchwork-Id: 2824365 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 DB6C49F3C3 for ; Fri, 5 Jul 2013 21:43:30 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id CF3A420108 for ; Fri, 5 Jul 2013 21:43:29 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id E578F200F8 for ; Fri, 5 Jul 2013 21:43:28 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id ACACFE603D for ; Fri, 5 Jul 2013 14:43:28 -0700 (PDT) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from shiva.localdomain (unknown [209.20.75.48]) by gabe.freedesktop.org (Postfix) with ESMTP id 2A24CE5DC6; Fri, 5 Jul 2013 14:38:01 -0700 (PDT) Received: by shiva.localdomain (Postfix, from userid 99) id B739B884FB; Fri, 5 Jul 2013 21:37:59 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from lundgren.kumite (c-24-21-100-90.hsd1.or.comcast.net [24.21.100.90]) by shiva.localdomain (Postfix) with ESMTPSA id 85B018867F; Fri, 5 Jul 2013 21:37:55 +0000 (UTC) From: Ben Widawsky To: Intel GFX Date: Fri, 5 Jul 2013 14:41:03 -0700 Message-Id: <1373060467-896-5-git-send-email-ben@bwidawsk.net> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1373060467-896-1-git-send-email-ben@bwidawsk.net> References: <1373060467-896-1-git-send-email-ben@bwidawsk.net> Cc: David Airlie , Ben Widawsky , dri-devel@lists.freedesktop.org Subject: [Intel-gfx] [PATCH 5/9] drm: Change create block to reserve node X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+patchwork-intel-gfx=patchwork.kernel.org@lists.freedesktop.org X-Virus-Scanned: ClamAV using ClamSMTP With the previous patch we no longer actually create a node, we simply find the correct hole and occupy it. This very well could have been squashed with the last patch, but since I already had David's review, I figured it's easiest to keep it distinct. Also update the users in i915. Conveniently this is the only user of the interface. CC: David Airlie CC: Signed-off-by: Ben Widawsky --- drivers/gpu/drm/drm_mm.c | 19 ++++++++++--------- drivers/gpu/drm/i915/i915_gem_gtt.c | 8 ++++---- drivers/gpu/drm/i915/i915_gem_stolen.c | 14 ++++++++------ include/drm/drm_mm.h | 5 +---- 4 files changed, 23 insertions(+), 23 deletions(-) diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c index 94d48c5..fe304f9 100644 --- a/drivers/gpu/drm/drm_mm.c +++ b/drivers/gpu/drm/drm_mm.c @@ -147,27 +147,27 @@ static void drm_mm_insert_helper(struct drm_mm_node *hole_node, } } -int drm_mm_create_block(struct drm_mm *mm, struct drm_mm_node *node, - unsigned long start, unsigned long size) +int drm_mm_reserve_node(struct drm_mm *mm, struct drm_mm_node *node) { struct drm_mm_node *hole; - unsigned long end = start + size; + unsigned long end = node->start + node->size; unsigned long hole_start; unsigned long hole_end; + BUG_ON(node == NULL); + + /* Find the relevant hole to add our node to */ drm_mm_for_each_hole(hole, mm, hole_start, hole_end) { - if (hole_start > start || hole_end < end) + if (hole_start > node->start || hole_end < end) continue; - node->start = start; - node->size = size; node->mm = mm; node->allocated = 1; INIT_LIST_HEAD(&node->hole_stack); list_add(&node->node_list, &hole->node_list); - if (start == hole_start) { + if (node->start == hole_start) { hole->hole_follows = 0; list_del_init(&hole->hole_stack); } @@ -181,10 +181,11 @@ int drm_mm_create_block(struct drm_mm *mm, struct drm_mm_node *node, return 0; } - WARN(1, "no hole found for block 0x%lx + 0x%lx\n", start, size); + WARN(1, "no hole found for node 0x%lx + 0x%lx\n", + node->start, node->size); return -ENOSPC; } -EXPORT_SYMBOL(drm_mm_create_block); +EXPORT_SYMBOL(drm_mm_reserve_node); struct drm_mm_node *drm_mm_get_block_generic(struct drm_mm_node *hole_node, unsigned long size, diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 88180a5..afba7e5 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -640,10 +640,10 @@ void i915_gem_setup_global_gtt(struct drm_device *dev, obj->gtt_offset); continue; } - ret = drm_mm_create_block(&dev_priv->mm.gtt_space, - obj->gtt_space, - obj->gtt_offset, - obj->base.size); + obj->gtt_space->start = obj->gtt_offset; + obj->gtt_space->size = obj->base.size; + ret = drm_mm_reserve_node(&dev_priv->mm.gtt_space, + obj->gtt_space); if (ret) { DRM_DEBUG_KMS("Reservation failed\n"); kfree(obj->gtt_space); diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c index c1b726c..95c3836 100644 --- a/drivers/gpu/drm/i915/i915_gem_stolen.c +++ b/drivers/gpu/drm/i915/i915_gem_stolen.c @@ -319,7 +319,6 @@ i915_gem_object_create_stolen(struct drm_device *dev, u32 size) struct drm_i915_private *dev_priv = dev->dev_private; struct drm_i915_gem_object *obj; struct drm_mm_node *stolen; - int ret; if (!drm_mm_initialized(&dev_priv->mm.stolen)) return NULL; @@ -351,6 +350,7 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev, struct drm_i915_private *dev_priv = dev->dev_private; struct drm_i915_gem_object *obj; struct drm_mm_node *stolen; + int ret; if (!drm_mm_initialized(&dev_priv->mm.stolen)) return NULL; @@ -369,8 +369,9 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev, if (!stolen) return NULL; - ret = drm_mm_create_block(&dev_priv->mm.stolen, stolen, stolen_offset, - size); + stolen->start = stolen_offset; + stolen->size = size; + ret = drm_mm_reserve_node(&dev_priv->mm.stolen, stolen); if (ret) { DRM_DEBUG_KMS("failed to allocate stolen space\n"); kfree(stolen); @@ -400,9 +401,10 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev, goto unref_out; } - ret = drm_mm_create_block(&dev_priv->mm.gtt_space, - obj->gtt_space, - gtt_offset, size); + obj->gtt_space->start = gtt_offset; + obj->gtt_space->size = size; + ret = drm_mm_reserve_node(&dev_priv->mm.gtt_space, + obj->gtt_space); if (ret) { DRM_DEBUG_KMS("failed to allocate stolen GTT space\n"); goto free_out; diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h index 6ac218d..b87d05e 100644 --- a/include/drm/drm_mm.h +++ b/include/drm/drm_mm.h @@ -138,10 +138,7 @@ static inline unsigned long drm_mm_hole_node_end(struct drm_mm_node *hole_node) /* * Basic range manager support (drm_mm.c) */ -extern int drm_mm_create_block(struct drm_mm *mm, - struct drm_mm_node *node, - unsigned long start, - unsigned long size); +extern int drm_mm_reserve_node(struct drm_mm *mm, struct drm_mm_node *node); extern struct drm_mm_node *drm_mm_get_block_generic(struct drm_mm_node *node, unsigned long size, unsigned alignment,