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_gem.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_gem.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c index b7ebae289bea..b0c2a1434f03 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c @@ -572,10 +572,14 @@ int amdgpu_gem_userptr_ioctl(struct drm_device *dev, void *data, goto release_object; if (args->flags & AMDGPU_GEM_USERPTR_VALIDATE) { - r = amdgpu_ttm_tt_get_user_pages(bo, &range); - if (r) + range = kzalloc(sizeof(*range), GFP_KERNEL); + if (unlikely(!range)) + return -ENOMEM; + r = amdgpu_ttm_tt_get_user_pages(bo, range); + if (r) { + kfree(range); goto release_object; - + } r = amdgpu_bo_reserve(bo, true); if (r) goto user_pages_done; |