linux-stable.git/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h, branch linux-5.4.y

Merge tag 'drm-misc-next-2019-08-19' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

2019-08-21T06:44:41+00:00

drm-misc-next for 5.4:

UAPI Changes:

Cross-subsystem Changes:

Core Changes:
  - dma-buf: add reservation_object_fences helper, relax
             reservation_object_add_shared_fence, remove
             reservation_object seq number (and then
             restored)
  - dma-fence: Shrinkage of the dma_fence structure,
               Merge dma_fence_signal and dma_fence_signal_locked,
               Store the timestamp in struct dma_fence in a union with
               cb_list

Driver Changes:
  - More dt-bindings YAML conversions
  - More removal of drmP.h includes
  - dw-hdmi: Support get_eld and various i2s improvements
  - gm12u320: Few fixes
  - meson: Global cleanup
  - panfrost: Few refactors, Support for GPU heap allocations
  - sun4i: Support for DDC enable GPIO
  - New panels: TI nspire, NEC NL8048HL11, LG Philips LB035Q02,
                Sharp LS037V7DW01, Sony ACX565AKM, Toppoly TD028TTEC1
                Toppoly TD043MTEA1

Signed-off-by: Dave Airlie 
[airlied: fixup dma_resv rename fallout]

From: Maxime Ripard 
Link: https://patchwork.freedesktop.org/patch/msgid/20190819141923.7l2adietcr2pioct@flea

dma-buf: rename reservation_object to dma_resv

2019-08-13T07:09:30+00:00

Be more consistent with the naming of the other DMA-buf objects.

Signed-off-by: Christian König 
Reviewed-by: Chris Wilson 
Link: https://patchwork.freedesktop.org/patch/323401/

drm/amdgpu: Implement VRAM wipe on release

2019-08-02T15:18:32+00:00

Wipe VRAM memory containing sensitive data when moving or releasing
BOs. Clearing the memory is pipelined to minimize any impact on
subsequent memory allocation latency. Use of a poison value should
help debug future use-after-free bugs.

When moving BOs, the existing ttm_bo_pipelined_move ensures that the
memory won't be reused before being wiped.

When releasing BOs, the BO is fenced with the memory fill operation,
which results in queuing the BO for a delayed delete.

v2: Move amdgpu_amdkfd_unreserve_memory_limit into
amdgpu_bo_release_notify so that KFD can use memory that's still
being cleared in the background

Signed-off-by: Felix Kuehling 
Reviewed-by: Christian König 
Signed-off-by: Alex Deucher

drm/amdgpu: Prepare for hmm_range_register API change (v2)

2019-07-08T18:55:00+00:00

An upcoming change in the hmm_range_register API requires passing in
a pointer to an hmm_mirror instead of mm_struct. To access the
hmm_mirror we need pass bo instead of ttm to amdgpu_ttm_tt_get_user_pages
because mirror is part of amdgpu_mn structure, which is accessible from bo.

v2: fix building without CONFIG_HMM_MIRROR (Arnd)

Signed-off-by: Philip Yang 
Signed-off-by: Felix Kuehling 
Reviewed-by: Alex Deucher 
Signed-off-by: Alex Deucher

drm/amdgpu: fix HMM config dependency issue

2019-05-24T17:21:02+00:00

Only select HMM_MIRROR will get kernel config dependency warnings
if CONFIG_HMM is missing in the config. Add depends on HMM will
solve the issue.

Add conditional compilation to fix compilation errors if HMM_MIRROR
is not enabled as HMM config is not enabled.

Remove unused function amdgpu_ttm_tt_mark_user_pages.

Signed-off-by: Philip Yang 
Reviewed-by: Felix Kuehling 
Signed-off-by: Alex Deucher

drm/amdgpu: replace get_user_pages with HMM mirror helpers

2019-05-24T17:21:02+00:00

Use HMM helper function hmm_vma_fault() to get physical pages backing
userptr and start CPU page table update track of those pages. Then use
hmm_vma_range_done() to check if those pages are updated before
amdgpu_cs_submit for gfx or before user queues are resumed for kfd.

If userptr pages are updated, for gfx, amdgpu_cs_ioctl will restart
from scratch, for kfd, restore worker is rescheduled to retry.

HMM simplify the CPU page table concurrent update check, so remove
guptasklock, mmu_invalidations, last_set_pages fields from
amdgpu_ttm_tt struct.

HMM does not pin the page (increase page ref count), so remove related
operations like release_pages(), put_page(), mark_page_dirty().

Signed-off-by: Philip Yang 
Reviewed-by: Felix Kuehling 
Reviewed-by: Christian König 
Signed-off-by: Alex Deucher

drm/ttm: initialize globals during device init (v2)

2018-11-05T19:21:21+00:00

Make sure that the global BO state is always correctly initialized.

This allows removing all the device code to initialize it.

v2: fix up vbox (Alex)

Signed-off-by: Christian König 
Reviewed-by: Junwei Zhang 
Signed-off-by: Alex Deucher

drm/ttm: use a static ttm_mem_global instance

2018-11-05T19:21:18+00:00

As the name says we only need one global instance of ttm_mem_global.

Drop all the driver initialization and just use a single exported
instance which is initialized during BO global initialization.

Signed-off-by: Christian König 
Reviewed-by: Junwei Zhang 
Signed-off-by: Alex Deucher

drm/amdgpu: add amdgpu_gmc_get_pde_for_bo helper v2

2018-08-27T20:19:42+00:00

Helper to get the PDE for a PD/PT.

v2: improve documentation

Signed-off-by: Christian König 
Reviewed-by: Junwei Zhang 
Reviewed-by: Huang Rui 
Reviewed-by: Alex Deucher 
Signed-off-by: Alex Deucher

drm/amdgpu: Keep track of amount of pinned CPU visible VRAM

2018-07-13T19:46:11+00:00

Instead of CPU invisible VRAM. Preparation for the following, no
functional change intended.

v2:
* Also change amdgpu_vram_mgr_bo_invisible_size to
  amdgpu_vram_mgr_bo_visible_size, allowing further simplification
  (Christian König)

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