diff options
Diffstat (limited to 'drivers/gpu/drm/drm_gem.c')
| -rw-r--r-- | drivers/gpu/drm/drm_gem.c | 84 |
1 files changed, 35 insertions, 49 deletions
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c index 69c2c079d803..92f89cee213e 100644 --- a/drivers/gpu/drm/drm_gem.c +++ b/drivers/gpu/drm/drm_gem.c @@ -36,6 +36,7 @@ #include <linux/pagemap.h> #include <linux/shmem_fs.h> #include <linux/dma-buf.h> +#include <linux/dma-buf-map.h> #include <linux/mem_encrypt.h> #include <linux/pagevec.h> @@ -247,12 +248,9 @@ drm_gem_object_release_handle(int id, void *ptr, void *data) { struct drm_file *file_priv = data; struct drm_gem_object *obj = ptr; - struct drm_device *dev = obj->dev; - if (obj->funcs && obj->funcs->close) + if (obj->funcs->close) obj->funcs->close(obj, file_priv); - else if (dev->driver->gem_close_object) - dev->driver->gem_close_object(obj, file_priv); drm_gem_remove_prime_handles(obj, file_priv); drm_vma_node_revoke(&obj->vma_node, file_priv); @@ -403,14 +401,10 @@ drm_gem_handle_create_tail(struct drm_file *file_priv, if (ret) goto err_remove; - if (obj->funcs && obj->funcs->open) { + if (obj->funcs->open) { ret = obj->funcs->open(obj, file_priv); if (ret) goto err_revoke; - } else if (dev->driver->gem_open_object) { - ret = dev->driver->gem_open_object(obj, file_priv); - if (ret) - goto err_revoke; } *handlep = handle; @@ -873,7 +867,7 @@ err: } /** - * drm_gem_open - implementation of the GEM_OPEN ioctl + * drm_gem_open_ioctl - implementation of the GEM_OPEN ioctl * @dev: drm_device * @data: ioctl data * @file_priv: drm file-private structure @@ -918,7 +912,7 @@ err: } /** - * gem_gem_open - initalizes GEM file-private structures at devnode open time + * drm_gem_open - initalizes GEM file-private structures at devnode open time * @dev: drm_device which is being opened by userspace * @file_private: drm file-private structure to set up * @@ -982,12 +976,11 @@ drm_gem_object_free(struct kref *kref) { struct drm_gem_object *obj = container_of(kref, struct drm_gem_object, refcount); - struct drm_device *dev = obj->dev; - if (obj->funcs) - obj->funcs->free(obj); - else if (dev->driver->gem_free_object_unlocked) - dev->driver->gem_free_object_unlocked(obj); + if (WARN_ON(!obj->funcs->free)) + return; + + obj->funcs->free(obj); } EXPORT_SYMBOL(drm_gem_object_free); @@ -1049,9 +1042,9 @@ EXPORT_SYMBOL(drm_gem_vm_close); * @obj_size: the object size to be mapped, in bytes * @vma: VMA for the area to be mapped * - * Set up the VMA to prepare mapping of the GEM object using the gem_vm_ops - * provided by the driver. Depending on their requirements, drivers can either - * provide a fault handler in their gem_vm_ops (in which case any accesses to + * Set up the VMA to prepare mapping of the GEM object using the GEM object's + * vm_ops. Depending on their requirements, GEM objects can either + * provide a fault handler in their vm_ops (in which case any accesses to * the object will be trapped, to perform migration, GTT binding, surface * register allocation, or performance monitoring), or mmap the buffer memory * synchronously after calling drm_gem_mmap_obj. @@ -1065,12 +1058,11 @@ EXPORT_SYMBOL(drm_gem_vm_close); * callers must verify access restrictions before calling this helper. * * Return 0 or success or -EINVAL if the object size is smaller than the VMA - * size, or if no gem_vm_ops are provided. + * size, or if no vm_ops are provided. */ int drm_gem_mmap_obj(struct drm_gem_object *obj, unsigned long obj_size, struct vm_area_struct *vma) { - struct drm_device *dev = obj->dev; int ret; /* Check for valid size. */ @@ -1087,7 +1079,7 @@ int drm_gem_mmap_obj(struct drm_gem_object *obj, unsigned long obj_size, vma->vm_private_data = obj; - if (obj->funcs && obj->funcs->mmap) { + if (obj->funcs->mmap) { ret = obj->funcs->mmap(obj, vma); if (ret) { drm_gem_object_put(obj); @@ -1095,10 +1087,8 @@ int drm_gem_mmap_obj(struct drm_gem_object *obj, unsigned long obj_size, } WARN_ON(!(vma->vm_flags & VM_DONTEXPAND)); } else { - if (obj->funcs && obj->funcs->vm_ops) + if (obj->funcs->vm_ops) vma->vm_ops = obj->funcs->vm_ops; - else if (dev->driver->gem_vm_ops) - vma->vm_ops = dev->driver->gem_vm_ops; else { drm_gem_object_put(obj); return -EINVAL; @@ -1198,54 +1188,50 @@ void drm_gem_print_info(struct drm_printer *p, unsigned int indent, drm_printf_indent(p, indent, "imported=%s\n", obj->import_attach ? "yes" : "no"); - if (obj->funcs && obj->funcs->print_info) + if (obj->funcs->print_info) obj->funcs->print_info(p, indent, obj); } int drm_gem_pin(struct drm_gem_object *obj) { - if (obj->funcs && obj->funcs->pin) + if (obj->funcs->pin) return obj->funcs->pin(obj); - else if (obj->dev->driver->gem_prime_pin) - return obj->dev->driver->gem_prime_pin(obj); else return 0; } void drm_gem_unpin(struct drm_gem_object *obj) { - if (obj->funcs && obj->funcs->unpin) + if (obj->funcs->unpin) obj->funcs->unpin(obj); - else if (obj->dev->driver->gem_prime_unpin) - obj->dev->driver->gem_prime_unpin(obj); } -void *drm_gem_vmap(struct drm_gem_object *obj) +int drm_gem_vmap(struct drm_gem_object *obj, struct dma_buf_map *map) { - void *vaddr; + int ret; - if (obj->funcs && obj->funcs->vmap) - vaddr = obj->funcs->vmap(obj); - else if (obj->dev->driver->gem_prime_vmap) - vaddr = obj->dev->driver->gem_prime_vmap(obj); - else - vaddr = ERR_PTR(-EOPNOTSUPP); + if (!obj->funcs->vmap) + return -EOPNOTSUPP; - if (!vaddr) - vaddr = ERR_PTR(-ENOMEM); + ret = obj->funcs->vmap(obj, map); + if (ret) + return ret; + else if (dma_buf_map_is_null(map)) + return -ENOMEM; - return vaddr; + return 0; } -void drm_gem_vunmap(struct drm_gem_object *obj, void *vaddr) +void drm_gem_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map) { - if (!vaddr) + if (dma_buf_map_is_null(map)) return; - if (obj->funcs && obj->funcs->vunmap) - obj->funcs->vunmap(obj, vaddr); - else if (obj->dev->driver->gem_prime_vunmap) - obj->dev->driver->gem_prime_vunmap(obj, vaddr); + if (obj->funcs->vunmap) + obj->funcs->vunmap(obj, map); + + /* Always set the mapping to NULL. Callers may rely on this. */ + dma_buf_map_clear(map); } /** |