diff options
| author | Sunil Khatri <sunil.khatri@amd.com> | 2025-09-24 12:23:26 +0530 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-10-13 14:14:28 -0400 |
| commit | e095b55155ef69a8ae0eb114a7fd2a381c012f33 (patch) | |
| tree | 3ce0047051dfe40d1f43056d6c0ef134cce8f6f2 /drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c | |
| parent | 079ae5118e1f0dcf5b1ab68ffdb5760b06ed79a2 (diff) | |
drm/amdgpu: use user provided hmm_range buffer in amdgpu_ttm_tt_get_user_pages
update the amdgpu_ttm_tt_get_user_pages and all dependent function
along with it callers to use a user allocated hmm_range buffer instead
hmm layer allocates the buffer.
This is a need to get hmm_range pointers easily accessible
without accessing the bo and that is a requirement for the
userqueue to lock the userptrs effectively.
Signed-off-by: Sunil Khatri <sunil.khatri@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_hmm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c | 11 |
1 files changed, 1 insertions, 10 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c index 2c6a6b858112..53d405a92a14 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c @@ -168,18 +168,13 @@ void amdgpu_hmm_unregister(struct amdgpu_bo *bo) int amdgpu_hmm_range_get_pages(struct mmu_interval_notifier *notifier, uint64_t start, uint64_t npages, bool readonly, void *owner, - struct hmm_range **phmm_range) + struct hmm_range *hmm_range) { - struct hmm_range *hmm_range; unsigned long end; unsigned long timeout; unsigned long *pfns; int r = 0; - hmm_range = kzalloc(sizeof(*hmm_range), GFP_KERNEL); - if (unlikely(!hmm_range)) - return -ENOMEM; - pfns = kvmalloc_array(npages, sizeof(*pfns), GFP_KERNEL); if (unlikely(!pfns)) { r = -ENOMEM; @@ -221,15 +216,11 @@ retry: hmm_range->start = start; hmm_range->hmm_pfns = pfns; - *phmm_range = hmm_range; - return 0; out_free_pfns: kvfree(pfns); out_free_range: - kfree(hmm_range); - if (r == -EBUSY) r = -EAGAIN; return r; |