diff options
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_bo.c')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_bo.c | 46 |
1 files changed, 45 insertions, 1 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_bo.c b/drivers/gpu/drm/vc4/vc4_bo.c index 952b7c0cc325..0cdfdd98b5e5 100644 --- a/drivers/gpu/drm/vc4/vc4_bo.c +++ b/drivers/gpu/drm/vc4/vc4_bo.c @@ -1,5 +1,5 @@ /* - * Copyright © 2015 Broadcom + * Copyright © 2014-2015 Broadcom * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -360,3 +360,47 @@ vc4_force_user_unmap(struct drm_gem_object *gem_obj) drm_vma_node_unmap(&gem_obj->vma_node, dev->anon_inode->i_mapping); } + +int +vc4_create_bo_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_vc4_create_bo *args = data; + struct vc4_bo *bo = NULL; + int ret; + + args->size = roundup(args->size, PAGE_SIZE); + if (args->size == 0) + return -EINVAL; + + mutex_lock(&dev->struct_mutex); + bo = vc4_bo_create(dev, args->size); + mutex_unlock(&dev->struct_mutex); + if (!bo) + return -ENOMEM; + + ret = drm_gem_handle_create(file_priv, &bo->base.base, &args->handle); + drm_gem_object_unreference_unlocked(&bo->base.base); + + return ret; +} + +int +vc4_mmap_bo_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_vc4_mmap_bo *args = data; + struct drm_gem_object *gem_obj; + + gem_obj = drm_gem_object_lookup(dev, file_priv, args->handle); + if (!gem_obj) { + DRM_ERROR("Failed to look up GEM BO %d\n", args->handle); + return -EINVAL; + } + + /* The mmap offset was set up at BO allocation time. */ + args->offset = drm_vma_node_offset_addr(&gem_obj->vma_node); + + drm_gem_object_unreference(gem_obj); + return 0; +} |