diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gemfs.c')
-rw-r--r-- | drivers/gpu/drm/i915/i915_gemfs.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gemfs.c b/drivers/gpu/drm/i915/i915_gemfs.c new file mode 100644 index 000000000000..168d0bd98f60 --- /dev/null +++ b/drivers/gpu/drm/i915/i915_gemfs.c @@ -0,0 +1,52 @@ +/* + * Copyright © 2017 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + */ + +#include <linux/fs.h> +#include <linux/mount.h> + +#include "i915_drv.h" +#include "i915_gemfs.h" + +int i915_gemfs_init(struct drm_i915_private *i915) +{ + struct file_system_type *type; + struct vfsmount *gemfs; + + type = get_fs_type("tmpfs"); + if (!type) + return -ENODEV; + + gemfs = kern_mount(type); + if (IS_ERR(gemfs)) + return PTR_ERR(gemfs); + + i915->mm.gemfs = gemfs; + + return 0; +} + +void i915_gemfs_fini(struct drm_i915_private *i915) +{ + kern_unmount(i915->mm.gemfs); +} |