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path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c
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2016-10-25drm/amdgpu: remove adev pointer from struct amdgpu_bo v2Christian König1-2/+2
It's completely pointless to have two pointers to the device in the same structure. v2: rename function to amdgpu_ttm_adev, fix typos Signed-off-by: Christian König <[email protected]> Reviewed-by: Alex Deucher <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2016-05-23drm/amdgpu: make amdgpu_mn_get wait for mmap_sem killableMichal Hocko1-1/+4
amdgpu_mn_get which is called during ioct path relies on mmap_sem for write. If the waiting task gets killed by the oom killer it would block oom_reaper from asynchronous address space reclaim and reduce the chances of timely OOM resolving. Wait for the lock in the killable mode and return with EINTR if the task got killed while waiting. [[email protected]: use ERR_PTR() to return from amdgpu_mn_get] Signed-off-by: Michal Hocko <[email protected]> Acked-by: Vlastimil Babka <[email protected]> Reviewed-by: Christian König <[email protected]> Cc: David Airlie <[email protected]> Cc: Alex Deucher <[email protected]> Signed-off-by: Arnd Bergmann <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2016-03-21drm/amdgpu: add invalidate_page callback for userptrsChristian König1-26/+72
Otherwise we can run into problems with the writeback code. Signed-off-by: Christian König <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2016-03-21drm/amdgpu: Revert "remove the userptr rmn->lock"Christian König1-8/+14
This reverts commit c02196834456f2d5fad334088b70e98ce4967c34. In the meantime we moved get_user_pages() outside of the reservation lock, so that shouldn't be an issue any more Signed-off-by: Christian König <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2016-02-17drm/amdgpu: Don't call interval_tree_remove in amdgpu_mn_destroyFelix Kuehling1-1/+0
rbtree_postorder_for_each_entry_safe can skip over some entries if the tree is rebalanced in interval_tree_remove. interval_tree_remove is also redundant when the tree is just about to be freed. Signed-off-by: Felix Kuehling <[email protected]> Reviewed-by: Christian König <[email protected]>
2016-02-17drm/amdgpu: Fix race condition in amdgpu_mn_unregisterFelix Kuehling1-10/+13
Exchange locking order of adev->mn_lock and mm_sem, so that rmn->mm->mmap_sem can be taken safely, protected by adev->mn_lock, when amdgpu_mn_destroy runs concurrently. Signed-off-by: Felix Kuehling <[email protected]> Reviewed-by: Christian König <[email protected]>
2016-02-16drm/amdgpu: Fix race condition in MMU notifier releaseFelix Kuehling1-1/+1
The release notifier can get called a second time from mmu_notifier_unregister depending on a race between __mmu_notifier_release and amdgpu_mn_destroy. Use mmu_notifier_unregister_no_release to avoid this. Signed-off-by: Felix Kuehling <[email protected]> Reviewed-by: Christian König <[email protected]>
2016-02-12drm/amdgpu: remove the userptr rmn->lockChristian König1-20/+12
Avoid a lock inversion problem by just using the mmap_sem to protect the entries of the intervall tree. Signed-off-by: Christian König <[email protected]> Reviewed-by: Felix Kuehling <[email protected]>
2016-02-10drm/amdgpu: fix issue with overlapping userptrsChristian König1-1/+2
Otherwise we could try to evict overlapping userptr BOs in get_user_pages(), leading to a possible circular locking dependency. Signed-off-by: Christian König <[email protected]> Acked-by: Alex Deucher <[email protected]>
2015-06-03drm/amdgpu: fix userptr lockupChristian König1-0/+3
Signed-off-by: Christian König <[email protected]> Reviewed-by: Jammy Zhou <[email protected]> Reviewed-by: Monk Liu <[email protected]>
2015-06-03drm/amdgpu: fix error check issue in amdgpu_mn_invalidate_range_startJack Xiao1-5/+5
Signed-off-by: Jack Xiao <[email protected]> Reviewed-by: Monk Liu <[email protected]> Reviewed-by: Christian König <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2015-06-03drm/amdgpu: add core driver (v4)Alex Deucher1-0/+319
This adds the non-asic specific core driver code. v2: remove extra kconfig option v3: implement minor fixes from Fengguang Wu v4: fix cast in amdgpu_ucode.c Acked-by: Christian König <[email protected]> Acked-by: Jammy Zhou <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
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