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drm: add mmap function to prime helpers

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This adds to call low-level mmap() from prime helpers.

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 2013-06-28 14:24:53 +09:00 committed by Dave Airlie
parent f9d8a1294d
commit 7c397cd97b
2 changed files with 9 additions and 1 deletions
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8
drivers/gpu/drm/drm_prime.c
View File

@ -245,7 +245,13 @@ static void drm_gem_dmabuf_kunmap(struct dma_buf *dma_buf,
static int drm_gem_dmabuf_mmap(struct dma_buf *dma_buf,
struct vm_area_struct *vma)
{
return -EINVAL;
struct drm_gem_object *obj = dma_buf->priv;
struct drm_device *dev = obj->dev;
if (!dev->driver->gem_prime_mmap)
return -ENOSYS;
return dev->driver->gem_prime_mmap(obj, vma);
}
static const struct dma_buf_ops drm_gem_prime_dmabuf_ops = {

2
include/drm/drmP.h
View File

@ -937,6 +937,8 @@ struct drm_driver {
struct sg_table *sgt);
void *(*gem_prime_vmap)(struct drm_gem_object *obj);
void (*gem_prime_vunmap)(struct drm_gem_object *obj, void *vaddr);
int (*gem_prime_mmap)(struct drm_gem_object *obj,
struct vm_area_struct *vma);
/* vga arb irq handler */
void (*vgaarb_irq)(struct drm_device *dev, bool state);