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drm/exynos: Fix a fake mmap offset creation 

Make a fake mmap offset only when it needs.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
This commit is contained in:
Joonyoung Shim 2011-12-13 14:32:24 +09:00 committed by Inki Dae
parent ee5e770ef4
commit 2d91cf17b5
1 changed files with 14 additions and 24 deletions
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38
drivers/gpu/drm/exynos/exynos_drm_gem.c
View File

@ -55,13 +55,6 @@ static unsigned int convert_to_vm_err_msg(int msg)
return out_msg;
}
static unsigned int get_gem_mmap_offset(struct drm_gem_object *obj)
{
DRM_DEBUG_KMS("%s\n", __FILE__);
return (unsigned int)obj->map_list.hash.key << PAGE_SHIFT;
}
static struct exynos_drm_gem_obj *
exynos_drm_gem_init(struct drm_device *drm_dev, struct drm_file *file_priv,
unsigned int *handle, unsigned int size)
@ -87,19 +80,13 @@ exynos_drm_gem_init(struct drm_device *drm_dev, struct drm_file *file_priv,
DRM_DEBUG_KMS("created file object = 0x%x\n", (unsigned int)obj->filp);
ret = drm_gem_create_mmap_offset(obj);
if (ret < 0) {
DRM_ERROR("failed to allocate mmap offset.\n");
goto err_release;
}
/*
* allocate a id of idr table where the obj is registered
* and handle has the id what user can see.
*/
ret = drm_gem_handle_create(file_priv, obj, handle);
if (ret)
goto err_free_mmap_offset;
goto err_release;
DRM_DEBUG_KMS("gem handle = 0x%x\n", *handle);
@ -108,9 +95,6 @@ exynos_drm_gem_init(struct drm_device *drm_dev, struct drm_file *file_priv,
return exynos_gem_obj;
err_free_mmap_offset:
drm_gem_free_mmap_offset(obj);
err_release:
drm_gem_object_release(obj);
@ -328,6 +312,7 @@ int exynos_drm_gem_dumb_map_offset(struct drm_file *file_priv,
{
struct exynos_drm_gem_obj *exynos_gem_obj;
struct drm_gem_object *obj;
int ret = 0;
DRM_DEBUG_KMS("%s\n", __FILE__);
@ -342,21 +327,26 @@ int exynos_drm_gem_dumb_map_offset(struct drm_file *file_priv,
obj = drm_gem_object_lookup(dev, file_priv, handle);
if (!obj) {
DRM_ERROR("failed to lookup gem object.\n");
mutex_unlock(&dev->struct_mutex);
return -EINVAL;
ret = -EINVAL;
goto unlock;
}
exynos_gem_obj = to_exynos_gem_obj(obj);
*offset = get_gem_mmap_offset(&exynos_gem_obj->base);
drm_gem_object_unreference(obj);
if (!exynos_gem_obj->base.map_list.map) {
ret = drm_gem_create_mmap_offset(&exynos_gem_obj->base);
if (ret)
goto out;
}
*offset = (u64)exynos_gem_obj->base.map_list.hash.key << PAGE_SHIFT;
DRM_DEBUG_KMS("offset = 0x%lx\n", (unsigned long)*offset);
out:
drm_gem_object_unreference(obj);
unlock:
mutex_unlock(&dev->struct_mutex);
return 0;
return ret;
}
int exynos_drm_gem_dumb_destroy(struct drm_file *file_priv,