From patchwork Wed Aug 10 13:09:08 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rob Clark X-Patchwork-Id: 1053692 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by demeter2.kernel.org (8.14.4/8.14.4) with ESMTP id p7ADADR5014121 for ; Wed, 10 Aug 2011 13:10:33 GMT Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0B96F9F5BB for ; Wed, 10 Aug 2011 06:10:13 -0700 (PDT) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail-yw0-f49.google.com (mail-yw0-f49.google.com [209.85.213.49]) by gabe.freedesktop.org (Postfix) with ESMTP id BD94E9F5CF for ; Wed, 10 Aug 2011 06:09:27 -0700 (PDT) Received: by ywp17 with SMTP id 17so681827ywp.36 for ; Wed, 10 Aug 2011 06:09:27 -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=eYwbHPsy0RQDVxUiNuqw8gdIC/ql1w299jTr3eEAJ3M=; b=onO3539gji/3nyq4xRjXJxnVRMPjoNEiqk7TvOpbNs7EY0rKKaCuhYe3DNntooL2OJ KThIaSOt1eFdXf1bHHXH839ucPGqYchjv+4KkXPUF5myndMT8f2F/W+6IOlrdUoxGB+J /Ql/yjiJC6Iz0DtdLwc4gAGPy0+5xCbkgxVrs= Received: by 10.150.65.13 with SMTP id n13mr8961681yba.293.1312981767139; Wed, 10 Aug 2011 06:09:27 -0700 (PDT) Received: from localhost (dragon.ti.com [192.94.94.33]) by mx.google.com with ESMTPS id g16sm567218ybi.23.2011.08.10.06.09.24 (version=TLSv1/SSLv3 cipher=OTHER); Wed, 10 Aug 2011 06:09:26 -0700 (PDT) From: Rob Clark To: dri-devel@lists.freedesktop.org Subject: [PATCH 2/3] drm/i915: use common functions for mmap offset creation Date: Wed, 10 Aug 2011 08:09:08 -0500 Message-Id: <1312981749-16106-2-git-send-email-rob@ti.com> X-Mailer: git-send-email 1.7.5.4 In-Reply-To: <1312981749-16106-1-git-send-email-rob@ti.com> References: <1312981749-16106-1-git-send-email-rob@ti.com> Cc: Rob Clark , patches@linaro.org X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.11 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: dri-devel-bounces+patchwork-dri-devel=patchwork.kernel.org@lists.freedesktop.org Errors-To: dri-devel-bounces+patchwork-dri-devel=patchwork.kernel.org@lists.freedesktop.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter2.kernel.org [140.211.167.43]); Wed, 10 Aug 2011 13:10:33 +0000 (UTC) Signed-off-by: Rob Clark --- 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);