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drm/cma: remove to make sg_table when gem cma is created

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The sg_table made when gem cma is created isn't used anywhere. The sgt
of struct drm_gem_cma_object will have only sg_tabel imported.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Joonyoung Shim 2014-03-15 16:30:28 +09:00 committed by Dave Airlie
parent d1583c9997
commit 7550e3668c
1 changed files with 0 additions and 19 deletions
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19
drivers/gpu/drm/drm_gem_cma_helper.c
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@ -79,7 +79,6 @@ struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm,
unsigned int size)
{
struct drm_gem_cma_object *cma_obj;
struct sg_table *sgt = NULL;
int ret;
size = round_up(size, PAGE_SIZE);
@ -97,23 +96,9 @@ struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm,
goto error;
}
sgt = kzalloc(sizeof(*cma_obj->sgt), GFP_KERNEL);
if (sgt == NULL) {
ret = -ENOMEM;
goto error;
}
ret = dma_get_sgtable(drm->dev, sgt, cma_obj->vaddr,
cma_obj->paddr, size);
if (ret < 0)
goto error;
cma_obj->sgt = sgt;
return cma_obj;
error:
kfree(sgt);
drm_gem_cma_free_object(&cma_obj->base);
return ERR_PTR(ret);
}
@ -175,10 +160,6 @@ void drm_gem_cma_free_object(struct drm_gem_object *gem_obj)
if (cma_obj->vaddr) {
dma_free_writecombine(gem_obj->dev->dev, cma_obj->base.size,
cma_obj->vaddr, cma_obj->paddr);
if (cma_obj->sgt) {
sg_free_table(cma_obj->sgt);
kfree(cma_obj->sgt);
}
} else if (gem_obj->import_attach) {
drm_prime_gem_destroy(gem_obj, cma_obj->sgt);
}