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| author | Philip Yang <Philip.Yang@amd.com> | 2018-12-13 15:35:28 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-05-24 12:21:02 -0500 |
| commit | 899fbde1464639e3d12eaffdad8481a59b367fcb (patch) | |
| tree | 4ba3ede8d6a583363d3da3916aaacd50121803f0 /drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h | |
| parent | 89cd9d23e9a74d94f0db5bbbaf2ef1f6ede36ae5 (diff) | |
| download | linux-899fbde1464639e3d12eaffdad8481a59b367fcb.tar.gz linux-899fbde1464639e3d12eaffdad8481a59b367fcb.tar.bz2 linux-899fbde1464639e3d12eaffdad8481a59b367fcb.zip | |
drm/amdgpu: replace get_user_pages with HMM mirror helpers
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 <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h index 0a51fd00021c..4803e216e174 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h @@ -25,9 +25,10 @@ #define __AMDGPU_MN_H__ /* - * MMU Notifier + * HMM mirror */ struct amdgpu_mn; +struct hmm_range; enum amdgpu_mn_type { AMDGPU_MN_TYPE_GFX, @@ -41,6 +42,7 @@ struct amdgpu_mn *amdgpu_mn_get(struct amdgpu_device *adev, enum amdgpu_mn_type type); int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr); void amdgpu_mn_unregister(struct amdgpu_bo *bo); +void amdgpu_hmm_init_range(struct hmm_range *range); #else static inline void amdgpu_mn_lock(struct amdgpu_mn *mn) {} static inline void amdgpu_mn_unlock(struct amdgpu_mn *mn) {} |