linux.git/drivers/gpu/drm/amd, branch v4.9-rc2

Merge branch 'gup_flag-cleanups'

2016-10-19T15:39:47+00:00

Merge the gup_flags cleanups from Lorenzo Stoakes:
 "This patch series adjusts functions in the get_user_pages* family such
  that desired FOLL_* flags are passed as an argument rather than
  implied by flags.

  The purpose of this change is to make the use of FOLL_FORCE explicit
  so it is easier to grep for and clearer to callers that this flag is
  being used.  The use of FOLL_FORCE is an issue as it overrides missing
  VM_READ/VM_WRITE flags for the VMA whose pages we are reading
  from/writing to, which can result in surprising behaviour.

  The patch series came out of the discussion around commit 38e088546522
  ("mm: check VMA flags to avoid invalid PROT_NONE NUMA balancing"),
  which addressed a BUG_ON() being triggered when a page was faulted in
  with PROT_NONE set but having been overridden by FOLL_FORCE.
  do_numa_page() was run on the assumption the page _must_ be one marked
  for NUMA node migration as an actual PROT_NONE page would have been
  dealt with prior to this code path, however FOLL_FORCE introduced a
  situation where this assumption did not hold.

  See

      https://marc.info/?l=linux-mm&m=147585445805166

  for the patch proposal"

Additionally, there's a fix for an ancient bug related to FOLL_FORCE and
FOLL_WRITE by me.

[ This branch was rebased recently to add a few more acked-by's and
  reviewed-by's ]

* gup_flag-cleanups:
  mm: replace access_process_vm() write parameter with gup_flags
  mm: replace access_remote_vm() write parameter with gup_flags
  mm: replace __access_remote_vm() write parameter with gup_flags
  mm: replace get_user_pages_remote() write/force parameters with gup_flags
  mm: replace get_user_pages() write/force parameters with gup_flags
  mm: replace get_vaddr_frames() write/force parameters with gup_flags
  mm: replace get_user_pages_locked() write/force parameters with gup_flags
  mm: replace get_user_pages_unlocked() write/force parameters with gup_flags
  mm: remove write/force parameters from __get_user_pages_unlocked()
  mm: remove write/force parameters from __get_user_pages_locked()
  mm: remove gup_flags FOLL_WRITE games from __get_user_pages()

mm: replace get_user_pages() write/force parameters with gup_flags

2016-10-19T15:11:43+00:00

This removes the 'write' and 'force' from get_user_pages() and replaces
them with 'gup_flags' to make the use of FOLL_FORCE explicit in callers
as use of this flag can result in surprising behaviour (and hence bugs)
within the mm subsystem.

Signed-off-by: Lorenzo Stoakes 
Acked-by: Christian König 
Acked-by: Jesper Nilsson 
Acked-by: Michal Hocko 
Reviewed-by: Jan Kara 
Signed-off-by: Linus Torvalds

Merge tag 'drm-fixes-for-v4.9-rc2' of git://people.freedesktop.org/~airlied/linux

2016-10-18T15:05:29+00:00

Pull drm fixes from Dave Airlie:
 "Just had a couple of amdgpu fixes and one core fix I wanted to get out
  early to fix some regressions.

  I'm sure I'll have more stuff this week for -rc2"

* tag 'drm-fixes-for-v4.9-rc2' of git://people.freedesktop.org/~airlied/linux: (22 commits)
  drm: Print device information again in debugfs
  drm/amd/powerplay: fix bug stop dpm can't work on Vi.
  drm/amd/powerplay: notify smu no display by default.
  drm/amdgpu/dpm: implement thermal sensor for CZ/ST
  drm/amdgpu/powerplay: implement thermal sensor for CZ/ST
  drm/amdgpu: disable smu hw first on tear down
  drm/amdgpu: fix amdgpu_need_full_reset (v2)
  drm/amdgpu/si_dpm: Limit clocks on HD86xx part
  drm/amd/powerplay: fix static checker warnings in smu7_hwmgr.c
  drm/amdgpu: potential NULL dereference in debugfs code
  drm/amd/powerplay: fix static checker warnings in smu7_hwmgr.c
  drm/amd/powerplay: fix static checker warnings in iceland_smc.c
  drm/radeon: change vblank_time's calculation method to reduce computational error.
  drm/amdgpu: change vblank_time's calculation method to reduce computational error.
  drm/amdgpu: clarify UVD/VCE special handling for CG
  drm/amd/amdgpu: enable clockgating only after late init
  drm/radeon: allow TA_CS_BC_BASE_ADDR on SI
  drm/amdgpu: initialize the context reset_counter in amdgpu_ctx_init
  drm/amdgpu/gfx8: fix CGCG_CGLS handling
  drm/radeon: fix modeset tear down code
  ...

drm/amd/powerplay: fix bug stop dpm can't work on Vi.

2016-10-14T16:10:00+00:00

Signed-off-by: Rex Zhu 
Reviewed-by: Alex Deucher 
Signed-off-by: Alex Deucher

drm/amd/powerplay: notify smu no display by default.

2016-10-14T16:09:44+00:00

Signed-off-by: Rex Zhu 
Reviewed-by: Alex Deucher 
Signed-off-by: Alex Deucher

drm/amdgpu/dpm: implement thermal sensor for CZ/ST

2016-10-14T15:52:29+00:00

Previous code was just a copy/paste from KV.

Reviewed-by: Tom St Denis 
Signed-off-by: Alex Deucher

drm/amdgpu/powerplay: implement thermal sensor for CZ/ST

2016-10-14T15:51:47+00:00

Add missing functionality.

Reviewed-by: Tom St Denis 
Signed-off-by: Alex Deucher

drm/amdgpu: disable smu hw first on tear down

2016-10-14T15:51:33+00:00

Otherwise, you can't disable dpm.

Tested-by and Reviewed-by: Rex Zhu 
Signed-off-by: Alex Deucher

drm/amdgpu: fix amdgpu_need_full_reset (v2)

2016-10-14T15:51:04+00:00

IP types are not an index.  Each asic may have number and
type of IPs.  Properly check the the type rather than
using the type id as an index.

v2: fix all the IPs to not use IP type as an idx as well.

Reviewed-by: Chunming Zhou 
Reviewed-by: Christian König 
Signed-off-by: Alex Deucher 
Cc: stable@vger.kernel.org

drm/amdgpu/si_dpm: Limit clocks on HD86xx part

2016-10-13T23:18:57+00:00

Limit clocks on a specific HD86xx part to avoid
crashes (while awaiting an appropriate PP fix).

Signed-off-by: Tom St Denis 
Reviewed-by: Alex Deucher 
Signed-off-by: Alex Deucher