diff options
Diffstat (limited to 'drivers/gpu/drm/rockchip/rockchip_drm_gem.c')
| -rw-r--r-- | drivers/gpu/drm/rockchip/rockchip_drm_gem.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c index 7ca8799ef784..eb2282cc4a56 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c @@ -22,7 +22,8 @@ #include "rockchip_drm_drv.h" #include "rockchip_drm_gem.h" -static int rockchip_gem_alloc_buf(struct rockchip_gem_object *rk_obj) +static int rockchip_gem_alloc_buf(struct rockchip_gem_object *rk_obj, + bool alloc_kmap) { struct drm_gem_object *obj = &rk_obj->base; struct drm_device *drm = obj->dev; @@ -30,7 +31,9 @@ static int rockchip_gem_alloc_buf(struct rockchip_gem_object *rk_obj) init_dma_attrs(&rk_obj->dma_attrs); dma_set_attr(DMA_ATTR_WRITE_COMBINE, &rk_obj->dma_attrs); - /* TODO(djkurtz): Use DMA_ATTR_NO_KERNEL_MAPPING except for fbdev */ + if (!alloc_kmap) + dma_set_attr(DMA_ATTR_NO_KERNEL_MAPPING, &rk_obj->dma_attrs); + rk_obj->kvaddr = dma_alloc_attrs(drm->dev, obj->size, &rk_obj->dma_addr, GFP_KERNEL, &rk_obj->dma_attrs); @@ -103,7 +106,8 @@ int rockchip_gem_mmap(struct file *filp, struct vm_area_struct *vma) } struct rockchip_gem_object * - rockchip_gem_create_object(struct drm_device *drm, unsigned int size) + rockchip_gem_create_object(struct drm_device *drm, unsigned int size, + bool alloc_kmap) { struct rockchip_gem_object *rk_obj; struct drm_gem_object *obj; @@ -119,7 +123,7 @@ struct rockchip_gem_object * drm_gem_private_object_init(drm, obj, size); - ret = rockchip_gem_alloc_buf(rk_obj); + ret = rockchip_gem_alloc_buf(rk_obj, alloc_kmap); if (ret) goto err_free_rk_obj; @@ -163,7 +167,7 @@ rockchip_gem_create_with_handle(struct drm_file *file_priv, struct drm_gem_object *obj; int ret; - rk_obj = rockchip_gem_create_object(drm, size); + rk_obj = rockchip_gem_create_object(drm, size, false); if (IS_ERR(rk_obj)) return ERR_CAST(rk_obj); @@ -282,6 +286,9 @@ void *rockchip_gem_prime_vmap(struct drm_gem_object *obj) { struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj); + if (dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, &rk_obj->dma_attrs)) + return NULL; + return rk_obj->kvaddr; } |