[RFC v2 0/3] DRM Anonymous Inodes

[David Herrmann]

Hi

On Fri, Jan 3, 2014 at 3:41 PM, David Herrmann <dh.herrmann at gmail.com> wrote:
> Hi
>
> With 3.13-rc1 the required VFS core changes for anonymous backing inodes in DRM
> got merged. This series reworks the previous patches (I think from early
> August '13) and finally replaces the ugly drm_device->dev_mapping hack.
>
> The patches should be fairly obvious. As I currently only have nouveau here, I'd
> be happy to get some more testers with other drivers.
>
> Patch #1 adds an internal private mount point to DRM core.
> Patch #2 replaces ->dev_mapping with a private anonymous inode for each device.
> Patch #3 removes the delayed dev_mapping initialization in TTM.
>
> The internal mnt-point is based on fs/aio.c and fs/anon_inode.c which do the
> same. It's not clear to me why we cannot share the mnt-point between all these,
> but Al Viro made clear that he will reject any patches on anon_inode.c which do
> that. So lets follow his recommendation and use our own internal mnt-point.

Also tested on i915 ivb now (before: nouveau+TTM). I think this is
ready for 3.14 if nobody finds any issues.

Thanks
David

> Thanks
> David
>
> David Herrmann (3):
>   drm: add pseudo filesystem for shared inodes
>   drm: use anon-inode instead of relying on cdevs
>   drm: init TTM dev_mapping in ttm_bo_device_init()
>
>  drivers/gpu/drm/ast/ast_ttm.c          |  5 +++--
>  drivers/gpu/drm/cirrus/cirrus_ttm.c    |  5 +++--
>  drivers/gpu/drm/drm_drv.c              | 37 ++++++++++++++++++++++++++++++++++
>  drivers/gpu/drm/drm_fops.c             | 25 +++--------------------
>  drivers/gpu/drm/drm_stub.c             | 12 ++++++++++-
>  drivers/gpu/drm/i915/i915_gem.c        |  3 ++-
>  drivers/gpu/drm/mgag200/mgag200_ttm.c  |  5 +++--
>  drivers/gpu/drm/nouveau/nouveau_gem.c  |  2 --
>  drivers/gpu/drm/nouveau/nouveau_ttm.c  |  4 +++-
>  drivers/gpu/drm/omapdrm/omap_gem.c     | 34 +++++++++++++++----------------
>  drivers/gpu/drm/qxl/qxl_object.c       |  2 --
>  drivers/gpu/drm/qxl/qxl_ttm.c          |  6 +++---
>  drivers/gpu/drm/radeon/radeon_object.c |  1 -
>  drivers/gpu/drm/radeon/radeon_ttm.c    |  5 +++--
>  drivers/gpu/drm/ttm/ttm_bo.c           |  3 ++-
>  drivers/gpu/drm/vmwgfx/vmwgfx_drv.c    |  5 +++--
>  include/drm/drmP.h                     |  3 ++-
>  include/drm/drm_vma_manager.h          |  6 +++---
>  include/drm/ttm/ttm_bo_driver.h        |  2 ++
>  19 files changed, 100 insertions(+), 65 deletions(-)
>
> --
> 1.8.5.2
>