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_cs.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_cs.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index 2f6a96af7fb1..59951d075703 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -891,7 +891,11 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p, bool userpage_invalidated = false; struct amdgpu_bo *bo = e->bo; - r = amdgpu_ttm_tt_get_user_pages(bo, &e->range); + e->range = kzalloc(sizeof(*e->range), GFP_KERNEL); + if (unlikely(!e->range)) + return -ENOMEM; + + r = amdgpu_ttm_tt_get_user_pages(bo, e->range); if (r) goto out_free_user_pages; |