linux-stable.git/drivers/gpu/drm/via, branch linux-5.6.y

Merge branch 'akpm' (patches from Andrew)

2020-01-31T20:16:36+00:00

Pull updates from Andrew Morton:
 "Most of -mm and quite a number of other subsystems: hotfixes, scripts,
  ocfs2, misc, lib, binfmt, init, reiserfs, exec, dma-mapping, kcov.

  MM is fairly quiet this time.  Holidays, I assume"

* emailed patches from Andrew Morton : (118 commits)
  kcov: ignore fault-inject and stacktrace
  include/linux/io-mapping.h-mapping: use PHYS_PFN() macro in io_mapping_map_atomic_wc()
  execve: warn if process starts with executable stack
  reiserfs: prevent NULL pointer dereference in reiserfs_insert_item()
  init/main.c: fix misleading "This architecture does not have kernel memory protection" message
  init/main.c: fix quoted value handling in unknown_bootoption
  init/main.c: remove unnecessary repair_env_string in do_initcall_level
  init/main.c: log arguments and environment passed to init
  fs/binfmt_elf.c: coredump: allow process with empty address space to coredump
  fs/binfmt_elf.c: coredump: delete duplicated overflow check
  fs/binfmt_elf.c: coredump: allocate core ELF header on stack
  fs/binfmt_elf.c: make BAD_ADDR() unlikely
  fs/binfmt_elf.c: better codegen around current->mm
  fs/binfmt_elf.c: don't copy ELF header around
  fs/binfmt_elf.c: fix ->start_code calculation
  fs/binfmt_elf.c: smaller code generation around auxv vector fill
  lib/find_bit.c: uninline helper _find_next_bit()
  lib/find_bit.c: join _find_next_bit{_le}
  uapi: rename ext2_swab() to swab() and share globally in swab.h
  lib/scatterlist.c: adjust indentation in __sg_alloc_table
  ...

mm, tree-wide: rename put_user_page() to unpin_user_page()

2020-01-31T18:30:38+00:00

In order to provide a clearer, more symmetric API for pinning and
unpinning DMA pages.  This way, pin_user_pages*() calls match up with
unpin_user_pages*() calls, and the API is a lot closer to being
self-explanatory.

Link: http://lkml.kernel.org/r/20200107224558.2362728-23-jhubbard@nvidia.com
Signed-off-by: John Hubbard 
Reviewed-by: Jan Kara 
Cc: Alex Williamson 
Cc: Aneesh Kumar K.V 
Cc: Björn Töpel 
Cc: Christoph Hellwig 
Cc: Daniel Vetter 
Cc: Dan Williams 
Cc: Hans Verkuil 
Cc: Ira Weiny 
Cc: Jason Gunthorpe 
Cc: Jason Gunthorpe 
Cc: Jens Axboe 
Cc: Jerome Glisse 
Cc: Jonathan Corbet 
Cc: Kirill A. Shutemov 
Cc: Leon Romanovsky 
Cc: Mauro Carvalho Chehab 
Cc: Mike Rapoport 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

drm/via: set FOLL_PIN via pin_user_pages_fast()

2020-01-31T18:30:37+00:00

Convert drm/via to use the new pin_user_pages_fast() call, which sets
FOLL_PIN.  Setting FOLL_PIN is now required for code that requires
tracking of pinned pages, and therefore for any code that calls
put_user_page().

In partial anticipation of this work, the drm/via driver was already
calling put_user_page() instead of put_page().  Therefore, in order to
convert from the get_user_pages()/put_page() model, to the
pin_user_pages()/put_user_page() model, the only change required is to
change get_user_pages() to pin_user_pages().

Link: http://lkml.kernel.org/r/20200107224558.2362728-16-jhubbard@nvidia.com
Signed-off-by: John Hubbard 
Acked-by: Daniel Vetter 
Reviewed-by: Jérôme Glisse 
Reviewed-by: Ira Weiny 
Cc: Alex Williamson 
Cc: Aneesh Kumar K.V 
Cc: Björn Töpel 
Cc: Christoph Hellwig 
Cc: Dan Williams 
Cc: Hans Verkuil 
Cc: Jan Kara 
Cc: Jason Gunthorpe 
Cc: Jason Gunthorpe 
Cc: Jens Axboe 
Cc: Jonathan Corbet 
Cc: Kirill A. Shutemov 
Cc: Leon Romanovsky 
Cc: Mauro Carvalho Chehab 
Cc: Mike Rapoport 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

drm/via: Don't include

2019-12-05T07:45:13+00:00

Including  is unnecessary in most cases. Replace
these instances.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Emil Velikov 
Reviewed-by: Alex Deucher 
Link: https://patchwork.freedesktop.org/patch/msgid/20191203100406.9674-13-tzimmermann@suse.de

drivers/gpu/drm/via: convert put_page() to put_user_page*()

2019-09-24T22:54:08+00:00

For pages that were retained via get_user_pages*(), release those pages
via the new put_user_page*() routines, instead of via put_page() or
release_pages().

This is part a tree-wide conversion, as described in fc1d8e7cca2d ("mm:
introduce put_user_page*(), placeholder versions").

Also reverse the order of a comparison, in order to placate checkpatch.pl.

Link: http://lkml.kernel.org/r/20190724044537.10458-3-jhubbard@nvidia.com
Signed-off-by: John Hubbard 
Cc: David Airlie 
Cc: Daniel Vetter 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

drm/via: drop use of drmP.h

2019-07-25T15:35:20+00:00

Drop use of the deprecated drmP.h header.
While touching the files divide include files in blocks
and sort the files alphabetically.

v2:
- Replace all uses of DRM_WAIT_ON() with VIA_WAIT_ON()
  and thus avoiding to pull in drm_os_linux.h

v3:
- DRM_WAIT_ON replacement moved to earlier patch (Emil)

Signed-off-by: Sam Ravnborg 
Reviewed-by: Emil Velikov 
Cc: Kevin Brace 
Cc: Thomas Hellstrom 
Cc: "Gustavo A. R. Silva" 
Cc: Mike Marshall 
Cc: Ira Weiny 
Cc: Daniel Vetter 
Cc: Michel Dänzer 
Link: https://patchwork.freedesktop.org/patch/msgid/20190723200944.17285-5-sam@ravnborg.org

drm/via: make via_drv.h self-contained

2019-07-25T15:35:20+00:00

Added include of header files to make via_drv.h self-contained.

v3:
- Reworded changelog a little - to reflect that more than one
  header files are added

Signed-off-by: Sam Ravnborg 
Reviewed-by: Emil Velikov 
Cc: Kevin Brace 
Cc: Thomas Hellstrom 
Cc: "Gustavo A. R. Silva" 
Cc: Mike Marshall 
Cc: Ira Weiny 
Cc: Daniel Vetter 
Cc: Michel Dänzer 
Link: https://patchwork.freedesktop.org/patch/msgid/20190723200944.17285-4-sam@ravnborg.org

drm/via: copy DRM_WAIT_ON as VIA_WAIT_ON and use it

2019-07-25T15:35:11+00:00

VIA_WAIT_ON() is a direct copy of DRM_WAIT_ON() from
drm_os_linux.h.
The copy is made so we can avoid the dependency on the legacy header.
A more involved approach had been to introduce wait_event_* but for this
legacy driver the simpler and more safe approach with a copy of the
macro was selected.
Added the relevant header files for the functions used in VIA_WAIT_ON.

v3:
- Updated users of DRM_WAIT_ON => VIA_WAIT_ON (Emil)
- Updated $subject (Emil)

Signed-off-by: Sam Ravnborg 
Reviewed-by: Emil Velikov 
Cc: Kevin Brace 
Cc: Thomas Hellstrom 
Cc: "Gustavo A. R. Silva" 
Cc: Mike Marshall 
Cc: Ira Weiny 
Cc: Daniel Vetter 
Cc: Michel Dänzer 
Link: https://patchwork.freedesktop.org/patch/msgid/20190723200944.17285-3-sam@ravnborg.org

drm/via: drop use of DRM(READ|WRITE) macros

2019-07-25T15:33:38+00:00

The DRM_READ, DRM_WRITE macros comes from the deprecated drm_os_linux.h
header file. Remove their use to remove this dependency.

Replace the use of the macros with static inline variants.

v4:
- Use a more standard via_write8_mask() function (Emil)

v3:
- Use static inline functions, rather than macros (Emil)
- Use dedicated mask variants for byte access (Emil)

Signed-off-by: Sam Ravnborg 
Reviewed-by: Emil Velikov 
Cc: Kevin Brace 
Cc: Thomas Hellstrom 
Cc: "Gustavo A. R. Silva" 
Cc: Mike Marshall 
Cc: Ira Weiny 
Cc: Daniel Vetter 
Cc: Michel Dänzer 
Link: https://patchwork.freedesktop.org/patch/msgid/20190723200944.17285-2-sam@ravnborg.org

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21T08:50:46+00:00

Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner 
Signed-off-by: Greg Kroah-Hartman