diff options
| author | Jérôme Glisse <jglisse@redhat.com> | 2018-02-26 11:02:37 -0500 |
|---|---|---|
| committer | Jérôme Glisse <jglisse@redhat.com> | 2018-03-21 21:21:08 -0400 |
| commit | 78459262e823b4ebb25929c18438044f3298748a (patch) | |
| tree | c81ae1fd4993b6f97e5537b318347d7b56473456 | |
| parent | 25dc889da556331599f9b2f91a82720384cd5f05 (diff) | |
drm/nouveau: HACK FOR HMM AREAnouveau-hmm
Allow userspace to create a virtual address range hole for GEM
object.
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_ttm.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c index dff51a0ee028..eafde4c6b7d4 100644 --- a/drivers/gpu/drm/nouveau/nouveau_ttm.c +++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c @@ -172,6 +172,13 @@ nouveau_ttm_mmap(struct file *filp, struct vm_area_struct *vma) if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET)) return drm_legacy_mmap(filp, vma); + /* Hack for HMM */ + if (vma->vm_pgoff < (DRM_FILE_PAGE_OFFSET + (4UL << 30))) { + struct nouveau_cli *cli = file_priv->driver_priv; + + return nouveau_vmm_hmm(cli, filp, vma); + } + return ttm_bo_mmap(filp, vma, &drm->ttm.bdev); } @@ -305,7 +312,7 @@ nouveau_ttm_init(struct nouveau_drm *drm) drm->ttm.bo_global_ref.ref.object, &nouveau_bo_driver, dev->anon_inode->i_mapping, - DRM_FILE_PAGE_OFFSET, + DRM_FILE_PAGE_OFFSET + (4UL << 30), drm->client.mmu.dmabits <= 32 ? true : false); if (ret) { NV_ERROR(drm, "error initialising bo driver, %d\n", ret); |