linux-toradex.git/drivers/gpu/drm/amd/amdgpu/amdgpu.h, branch v5.5-rc7

Merge tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

2019-11-30T18:33:14+00:00

Pull hmm updates from Jason Gunthorpe:
 "This is another round of bug fixing and cleanup. This time the focus
  is on the driver pattern to use mmu notifiers to monitor a VA range.
  This code is lifted out of many drivers and hmm_mirror directly into
  the mmu_notifier core and written using the best ideas from all the
  driver implementations.

  This removes many bugs from the drivers and has a very pleasing
  diffstat. More drivers can still be converted, but that is for another
  cycle.

   - A shared branch with RDMA reworking the RDMA ODP implementation

   - New mmu_interval_notifier API. This is focused on the use case of
     monitoring a VA and simplifies the process for drivers

   - A common seq-count locking scheme built into the
     mmu_interval_notifier API usable by drivers that call
     get_user_pages() or hmm_range_fault() with the VA range

   - Conversion of mlx5 ODP, hfi1, radeon, nouveau, AMD GPU, and Xen
     GntDev drivers to the new API. This deletes a lot of wonky driver
     code.

   - Two improvements for hmm_range_fault(), from testing done by Ralph"

* tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  mm/hmm: remove hmm_range_dma_map and hmm_range_dma_unmap
  mm/hmm: make full use of walk_page_range()
  xen/gntdev: use mmu_interval_notifier_insert
  mm/hmm: remove hmm_mirror and related
  drm/amdgpu: Use mmu_interval_notifier instead of hmm_mirror
  drm/amdgpu: Use mmu_interval_insert instead of hmm_mirror
  drm/amdgpu: Call find_vma under mmap_sem
  nouveau: use mmu_interval_notifier instead of hmm_mirror
  nouveau: use mmu_notifier directly for invalidate_range_start
  drm/radeon: use mmu_interval_notifier_insert
  RDMA/hfi1: Use mmu_interval_notifier_insert for user_exp_rcv
  RDMA/odp: Use mmu_interval_notifier_insert()
  mm/hmm: define the pre-processor related parts of hmm.h even if disabled
  mm/hmm: allow hmm_range to be used with a mmu_interval_notifier or hmm_mirror
  mm/mmu_notifier: add an interval tree notifier
  mm/mmu_notifier: define the header pre-processor parts even if disabled
  mm/hmm: allow snapshot of the special zero page

drm/amdgpu: Use mmu_interval_insert instead of hmm_mirror

2019-11-23T23:56:45+00:00

Remove the interval tree in the driver and rely on the tree maintained by
the mmu_notifier for delivering mmu_notifier invalidation callbacks.

For some reason amdgpu has a very complicated arrangement where it tries
to prevent duplicate entries in the interval_tree, this is not necessary,
each amdgpu_bo can be its own stand alone entry. interval_tree already
allows duplicates and overlaps in the tree.

Also, there is no need to remove entries upon a release callback, the
mmu_interval API safely allows objects to remain registered beyond the
lifetime of the mm. The driver only has to stop touching the pages during
release.

Link: https://lore.kernel.org/r/20191112202231.3856-12-jgg@ziepe.ca
Reviewed-by: Philip Yang 
Tested-by: Philip Yang 
Signed-off-by: Jason Gunthorpe

drm/amdgpu: fix possible pstate switch race condition

2019-11-06T21:27:48+00:00

Added lock protection so that the p-state switch will
be guarded to be sequential. Also update the hive
pstate only all device from the hive are in the same
state.

Signed-off-by: Evan Quan 
Reviewed-by: Feifei Xu 
Signed-off-by: Alex Deucher

drm/amd: correct "_LENTH" mispelling in constant

2019-10-28T15:19:17+00:00

Correct the "_LENTH" mispelling in the AMDGPU_MAX_TIMEOUT_PARAM_LENGTH
constant.

Signed-off-by: Wambui Karuga 
Signed-off-by: Alex Deucher

drm/amd: declare amdgpu_exp_hw_support in amdgpu.h

2019-10-28T15:19:17+00:00

Declare `amdgpu_exp_hw_support` as extern in amdgpu.h to address the
following sparse warning:
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c:118:5: warning: symbol 'amdgpu_exp_hw_support' was not declared. Should it be static?

Signed-off-by: Wambui Karuga 
Suggested-by: Harry Wentland 
Signed-off-by: Alex Deucher

drm/amdgpu/psp: add psp memory training implementation(v3)

2019-10-17T20:31:54+00:00

add memory training implementation code to save resume time.

Reviewed-by: Alex Deucher 
Reviewed-by: Luben Tuikov 
Signed-off-by: Tianci.Yin 
Signed-off-by: Alex Deucher

drm/amdgpu/atomfirmware: add memory training related helper functions(v3)

2019-10-17T20:31:31+00:00

parse firmware to get memory training capability and fb location.

Reviewed-by: Alex Deucher 
Reviewed-by: Luben Tuikov 
Signed-off-by: Tianci.Yin 
Signed-off-by: Alex Deucher

drm/amdgpu: add a generic fb accessing helper function(v3)

2019-10-17T20:31:13+00:00

add a generic helper function for accessing framebuffer via MMIO

Reviewed-by: Alex Deucher 
Reviewed-by: Luben Tuikov 
Signed-off-by: Tianci.Yin 
Signed-off-by: Alex Deucher

drm/amdgpu: remove in_baco_reset hack

2019-10-15T19:51:39+00:00

It was a vega20 specific hack.  Check if we are in reset
and what reset method we are using.

Reviewed-by: Evan Quan 
Signed-off-by: Alex Deucher

drm/amdgpu/discovery: reserve discovery data at the top of VRAM

2019-10-15T19:48:46+00:00

IP Discovery data is TMR fenced by the latest PSP BL,
so we need to reserve this region.

Tested on navi10/12/14 with VBIOS integrated with latest PSP BL.

v2: use DISCOVERY_TMR_SIZE macro as bo size
    use amdgpu_bo_create_kernel_at() to allocate bo

Signed-off-by: Xiaojie Yuan 
Reviewed-by: Hawking Zhang 
Reviewed-by: Alex Deucher 
Signed-off-by: Alex Deucher