[0/7] drm, highmem: Cleanup io/kmap_atomic*() usage

Message

Thomas Gleixner March 3, 2021, 1:20 p.m. UTC

None of the DRM usage sites of temporary mappings requires the side
effects of io/kmap_atomic(), i.e. preemption and pagefault disable.

Replace them with the io/kmap_local() variants, simplify the
copy_to/from_user() error handling and remove the atomic variants.

Thanks,

	tglx
---
 Documentation/driver-api/io-mapping.rst             |   22 +++-------
 drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c      |    7 +--
 drivers/gpu/drm/i915/i915_gem.c                     |   40 ++++++-------------
 drivers/gpu/drm/i915/selftests/i915_gem.c           |    4 -
 drivers/gpu/drm/i915/selftests/i915_gem_gtt.c       |    8 +--
 drivers/gpu/drm/nouveau/nvkm/subdev/devinit/fbmem.h |    8 +--
 drivers/gpu/drm/qxl/qxl_image.c                     |   18 ++++----
 drivers/gpu/drm/qxl/qxl_ioctl.c                     |   27 ++++++------
 drivers/gpu/drm/qxl/qxl_object.c                    |   12 ++---
 drivers/gpu/drm/qxl/qxl_object.h                    |    4 -
 drivers/gpu/drm/qxl/qxl_release.c                   |    4 -
 drivers/gpu/drm/ttm/ttm_bo_util.c                   |   20 +++++----
 drivers/gpu/drm/vmwgfx/vmwgfx_blit.c                |   30 +++++---------
 include/linux/highmem-internal.h                    |   14 ------
 include/linux/io-mapping.h                          |   42 --------------------
 15 files changed, 93 insertions(+), 167 deletions(-)