From patchwork Thu Aug 4 17:07:39 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rob Clark X-Patchwork-Id: 3275 Return-Path: X-Original-To: patchwork@peony.canonical.com Delivered-To: patchwork@peony.canonical.com Received: from fiordland.canonical.com (fiordland.canonical.com [91.189.94.145]) by peony.canonical.com (Postfix) with ESMTP id 443BE24070 for ; Thu, 4 Aug 2011 17:07:53 +0000 (UTC) Received: from mail-qw0-f52.google.com (mail-qw0-f52.google.com [209.85.216.52]) by fiordland.canonical.com (Postfix) with ESMTP id 13D52A184F7 for ; Thu, 4 Aug 2011 17:07:52 +0000 (UTC) Received: by mail-qw0-f52.google.com with SMTP id 8so1170327qwb.11 for ; Thu, 04 Aug 2011 10:07:52 -0700 (PDT) Received: by 10.229.241.19 with SMTP id lc19mr846423qcb.45.1312477672851; Thu, 04 Aug 2011 10:07:52 -0700 (PDT) X-Forwarded-To: linaro-patchwork@canonical.com X-Forwarded-For: patch@linaro.org linaro-patchwork@canonical.com Delivered-To: patches@linaro.org Received: by 10.229.6.73 with SMTP id 9cs21058qcy; Thu, 4 Aug 2011 10:07:52 -0700 (PDT) Received: by 10.227.55.17 with SMTP id s17mr919414wbg.57.1312477671885; Thu, 04 Aug 2011 10:07:51 -0700 (PDT) Received: from mail-wy0-f178.google.com (mail-wy0-f178.google.com [74.125.82.178]) by mx.google.com with ESMTPS id p2si4281203wbh.34.2011.08.04.10.07.51 (version=TLSv1/SSLv3 cipher=OTHER); Thu, 04 Aug 2011 10:07:51 -0700 (PDT) Received-SPF: pass (google.com: domain of robdclark@gmail.com designates 74.125.82.178 as permitted sender) client-ip=74.125.82.178; Authentication-Results: mx.google.com; spf=pass (google.com: domain of robdclark@gmail.com designates 74.125.82.178 as permitted sender) smtp.mail=robdclark@gmail.com; dkim=pass (test mode) header.i=@gmail.com Received: by mail-wy0-f178.google.com with SMTP id 19so1757047wyf.37 for ; Thu, 04 Aug 2011 10:07:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=sender:from:to:cc:subject:date:message-id:x-mailer:in-reply-to :references; bh=HAOVJM74LZQHsVIkcdYNfrn3mIQZ3CCqWmPhiISCDrw=; b=QqBUs2I+R9drDOs7Ej/tTfz+lnKzLXnVuddetF0h2qR6VXWWDE8WJTnVvsJOwMazXD SzKHwqbKJ2q1LlAtk9mzMZoU2eRmpFwzJ7xqxm5PeuhkUraxpsuf7BACcYMD5ckC4qpn J2Of6o77x82ugfuji5Hpua5CAd+Dn7C149X7k= Received: by 10.216.156.207 with SMTP id m57mr2058163wek.44.1312477671076; Thu, 04 Aug 2011 10:07:51 -0700 (PDT) Received: from localhost ([109.234.204.184]) by mx.google.com with ESMTPS id t46sm1317465wec.14.2011.08.04.10.07.50 (version=TLSv1/SSLv3 cipher=OTHER); Thu, 04 Aug 2011 10:07:50 -0700 (PDT) Sender: Rob Clark From: Rob Clark To: dri-devel@lists.freedesktop.org Cc: patches@linaro.org, Rob Clark Subject: [PATCH 2/9] drm/i915: use common functions for mmap offset creation Date: Thu, 4 Aug 2011 12:07:39 -0500 Message-Id: <1312477672-32366-2-git-send-email-rob@ti.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: References: --- drivers/gpu/drm/i915/i915_gem.c | 85 +-------------------------------------- 1 files changed, 2 insertions(+), 83 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 5c0d124..5676eaa 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1265,74 +1265,6 @@ out: } /** - * i915_gem_create_mmap_offset - create a fake mmap offset for an object - * @obj: obj in question - * - * GEM memory mapping works by handing back to userspace a fake mmap offset - * it can use in a subsequent mmap(2) call. The DRM core code then looks - * up the object based on the offset and sets up the various memory mapping - * structures. - * - * This routine allocates and attaches a fake offset for @obj. - */ -static int -i915_gem_create_mmap_offset(struct drm_i915_gem_object *obj) -{ - struct drm_device *dev = obj->base.dev; - struct drm_gem_mm *mm = dev->mm_private; - struct drm_map_list *list; - struct drm_local_map *map; - int ret = 0; - - /* Set the object up for mmap'ing */ - list = &obj->base.map_list; - list->map = kzalloc(sizeof(struct drm_map_list), GFP_KERNEL); - if (!list->map) - return -ENOMEM; - - map = list->map; - map->type = _DRM_GEM; - map->size = obj->base.size; - map->handle = obj; - - /* Get a DRM GEM mmap offset allocated... */ - list->file_offset_node = drm_mm_search_free(&mm->offset_manager, - obj->base.size / PAGE_SIZE, - 0, 0); - if (!list->file_offset_node) { - DRM_ERROR("failed to allocate offset for bo %d\n", - obj->base.name); - ret = -ENOSPC; - goto out_free_list; - } - - list->file_offset_node = drm_mm_get_block(list->file_offset_node, - obj->base.size / PAGE_SIZE, - 0); - if (!list->file_offset_node) { - ret = -ENOMEM; - goto out_free_list; - } - - list->hash.key = list->file_offset_node->start; - ret = drm_ht_insert_item(&mm->offset_hash, &list->hash); - if (ret) { - DRM_ERROR("failed to add to map hash\n"); - goto out_free_mm; - } - - return 0; - -out_free_mm: - drm_mm_put_block(list->file_offset_node); -out_free_list: - kfree(list->map); - list->map = NULL; - - return ret; -} - -/** * i915_gem_release_mmap - remove physical page mappings * @obj: obj in question * @@ -1360,19 +1292,6 @@ i915_gem_release_mmap(struct drm_i915_gem_object *obj) obj->fault_mappable = false; } -static void -i915_gem_free_mmap_offset(struct drm_i915_gem_object *obj) -{ - struct drm_device *dev = obj->base.dev; - struct drm_gem_mm *mm = dev->mm_private; - struct drm_map_list *list = &obj->base.map_list; - - drm_ht_remove_item(&mm->offset_hash, &list->hash); - drm_mm_put_block(list->file_offset_node); - kfree(list->map); - list->map = NULL; -} - static uint32_t i915_gem_get_gtt_size(struct drm_i915_gem_object *obj) { @@ -1493,7 +1412,7 @@ i915_gem_mmap_gtt(struct drm_file *file, } if (!obj->base.map_list.map) { - ret = i915_gem_create_mmap_offset(obj); + ret = drm_gem_create_mmap_offset(&obj->base); if (ret) goto out; } @@ -3614,7 +3533,7 @@ static void i915_gem_free_object_tail(struct drm_i915_gem_object *obj) trace_i915_gem_object_destroy(obj); if (obj->base.map_list.map) - i915_gem_free_mmap_offset(obj); + drm_gem_free_mmap_offset(&obj->base); drm_gem_object_release(&obj->base); i915_gem_info_remove_obj(dev_priv, obj->base.size);