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drm/msm: Initialize mmap offset after constructing the buffer object 

Only the msm driver provides its own implementation of gem_prime_mmap
from struct drm_driver. All other drivers use the drm_gem_prime_mmap()
helper.

Initialize the mmap offset when constructing the buffer object in msm
and reduce the gem_prime_mmap code to the generic helper. Prepares
msm for the removal of struct drm_driver.gem_prime_mmap.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230613150441.17720-2-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2023-06-13 16:51:32 +02:00
parent a74e041def
commit 734458b762
2 changed files with 8 additions and 10 deletions
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8
drivers/gpu/drm/msm/msm_gem.c
View File

@ -1240,6 +1240,10 @@ struct drm_gem_object *msm_gem_new(struct drm_device *dev, uint32_t size, uint32
list_add_tail(&msm_obj->node, &priv->objects);
mutex_unlock(&priv->obj_lock);
ret = drm_gem_create_mmap_offset(obj);
if (ret)
goto fail;
return obj;
fail:
@ -1296,6 +1300,10 @@ struct drm_gem_object *msm_gem_import(struct drm_device *dev,
list_add_tail(&msm_obj->node, &priv->objects);
mutex_unlock(&priv->obj_lock);
ret = drm_gem_create_mmap_offset(obj);
if (ret)
goto fail;
return obj;
fail:

10
drivers/gpu/drm/msm/msm_gem_prime.c
View File

@ -13,16 +13,6 @@
int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
{
int ret;
/* Ensure the mmap offset is initialized. We lazily initialize it,
* so if it has not been first mmap'd directly as a GEM object, the
* mmap offset will not be already initialized.
*/
ret = drm_gem_create_mmap_offset(obj);
if (ret)
return ret;
return drm_gem_prime_mmap(obj, vma);
}