diff options
author | Dave Airlie <airlied@redhat.com> | 2010-03-09 00:56:52 (GMT) |
---|---|---|
committer | Dave Airlie <airlied@redhat.com> | 2010-08-03 23:46:06 (GMT) |
commit | ba4420c224c2808f2661cf8428f43ceef7a73a4a (patch) | |
tree | 67b32498483c797c76e8f504a83746bdef35db7d /drivers/gpu/drm/ttm | |
parent | 2581afccadd347bf97c3a5620ba72c99aca8c355 (diff) | |
download | linux-fsl-qoriq-ba4420c224c2808f2661cf8428f43ceef7a73a4a.tar.xz |
drm: move ttm global code to core drm
I wrote this for the prime sharing work, but I also noticed other external
non-upstream drivers from a large company carrying a similiar patch, so I
may as well ship it in master.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/ttm')
-rw-r--r-- | drivers/gpu/drm/ttm/Makefile | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo.c | 4 | ||||
-rw-r--r-- | drivers/gpu/drm/ttm/ttm_global.c | 112 | ||||
-rw-r--r-- | drivers/gpu/drm/ttm/ttm_module.c | 4 |
4 files changed, 3 insertions, 119 deletions
diff --git a/drivers/gpu/drm/ttm/Makefile b/drivers/gpu/drm/ttm/Makefile index 4256e20..b256d4a 100644 --- a/drivers/gpu/drm/ttm/Makefile +++ b/drivers/gpu/drm/ttm/Makefile @@ -3,7 +3,7 @@ ccflags-y := -Iinclude/drm ttm-y := ttm_agp_backend.o ttm_memory.o ttm_tt.o ttm_bo.o \ - ttm_bo_util.o ttm_bo_vm.o ttm_module.o ttm_global.o \ + ttm_bo_util.o ttm_bo_vm.o ttm_module.o \ ttm_object.o ttm_lock.o ttm_execbuf_util.o ttm_page_alloc.o obj-$(CONFIG_DRM_TTM) += ttm.o diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 9763288..cb4cf7e 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -1395,7 +1395,7 @@ static void ttm_bo_global_kobj_release(struct kobject *kobj) kfree(glob); } -void ttm_bo_global_release(struct ttm_global_reference *ref) +void ttm_bo_global_release(struct drm_global_reference *ref) { struct ttm_bo_global *glob = ref->object; @@ -1404,7 +1404,7 @@ void ttm_bo_global_release(struct ttm_global_reference *ref) } EXPORT_SYMBOL(ttm_bo_global_release); -int ttm_bo_global_init(struct ttm_global_reference *ref) +int ttm_bo_global_init(struct drm_global_reference *ref) { struct ttm_bo_global_ref *bo_ref = container_of(ref, struct ttm_bo_global_ref, ref); diff --git a/drivers/gpu/drm/ttm/ttm_global.c b/drivers/gpu/drm/ttm/ttm_global.c deleted file mode 100644 index b170071..0000000 --- a/drivers/gpu/drm/ttm/ttm_global.c +++ /dev/null @@ -1,112 +0,0 @@ -/************************************************************************** - * - * Copyright 2008-2009 VMware, Inc., Palo Alto, CA., USA - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, - * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR - * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE - * USE OR OTHER DEALINGS IN THE SOFTWARE. - * - **************************************************************************/ -/* - * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com> - */ - -#include "ttm/ttm_module.h" -#include <linux/mutex.h> -#include <linux/slab.h> -#include <linux/module.h> - -struct ttm_global_item { - struct mutex mutex; - void *object; - int refcount; -}; - -static struct ttm_global_item glob[TTM_GLOBAL_NUM]; - -void ttm_global_init(void) -{ - int i; - - for (i = 0; i < TTM_GLOBAL_NUM; ++i) { - struct ttm_global_item *item = &glob[i]; - mutex_init(&item->mutex); - item->object = NULL; - item->refcount = 0; - } -} - -void ttm_global_release(void) -{ - int i; - for (i = 0; i < TTM_GLOBAL_NUM; ++i) { - struct ttm_global_item *item = &glob[i]; - BUG_ON(item->object != NULL); - BUG_ON(item->refcount != 0); - } -} - -int ttm_global_item_ref(struct ttm_global_reference *ref) -{ - int ret; - struct ttm_global_item *item = &glob[ref->global_type]; - void *object; - - mutex_lock(&item->mutex); - if (item->refcount == 0) { - item->object = kzalloc(ref->size, GFP_KERNEL); - if (unlikely(item->object == NULL)) { - ret = -ENOMEM; - goto out_err; - } - - ref->object = item->object; - ret = ref->init(ref); - if (unlikely(ret != 0)) - goto out_err; - - } - ++item->refcount; - ref->object = item->object; - object = item->object; - mutex_unlock(&item->mutex); - return 0; -out_err: - mutex_unlock(&item->mutex); - item->object = NULL; - return ret; -} -EXPORT_SYMBOL(ttm_global_item_ref); - -void ttm_global_item_unref(struct ttm_global_reference *ref) -{ - struct ttm_global_item *item = &glob[ref->global_type]; - - mutex_lock(&item->mutex); - BUG_ON(item->refcount == 0); - BUG_ON(ref->object != item->object); - if (--item->refcount == 0) { - ref->release(ref); - item->object = NULL; - } - mutex_unlock(&item->mutex); -} -EXPORT_SYMBOL(ttm_global_item_unref); - diff --git a/drivers/gpu/drm/ttm/ttm_module.c b/drivers/gpu/drm/ttm/ttm_module.c index 9a6edbf..902d7cf 100644 --- a/drivers/gpu/drm/ttm/ttm_module.c +++ b/drivers/gpu/drm/ttm/ttm_module.c @@ -70,8 +70,6 @@ static int __init ttm_init(void) if (unlikely(ret != 0)) return ret; - ttm_global_init(); - atomic_set(&device_released, 0); ret = drm_class_device_register(&ttm_drm_class_device); if (unlikely(ret != 0)) @@ -81,7 +79,6 @@ static int __init ttm_init(void) out_no_dev_reg: atomic_set(&device_released, 1); wake_up_all(&exit_q); - ttm_global_release(); return ret; } @@ -95,7 +92,6 @@ static void __exit ttm_exit(void) */ wait_event(exit_q, atomic_read(&device_released) == 1); - ttm_global_release(); } module_init(ttm_init); |