diff options
| author | Andi Shyti <andi.shyti@linux.intel.com> | 2024-08-02 11:38:49 +0300 |
|---|---|---|
| committer | Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2024-08-06 15:01:23 +0300 |
| commit | 60a2066c50058086510c91f404eb582029650970 (patch) | |
| tree | 79e9554a2e6b2deed9970e5a2b6f93fd28505e03 | |
| parent | fceff12e52985e49c464f402e11b2f97bce3cc24 (diff) | |
| download | linux-60a2066c50058086510c91f404eb582029650970.tar.xz | |
drm/i915/gem: Adjust vma offset for framebuffer mmap offset
When mapping a framebuffer object, the virtual memory area (VMA)
offset ('vm_pgoff') should be adjusted by the start of the
'vma_node' associated with the object. This ensures that the VMA
offset is correctly aligned with the corresponding offset within
the GGTT aperture.
Increment vm_pgoff by the start of the vma_node with the offset=
provided by the user.
Suggested-by: Chris Wilson <chris.p.wilson@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: <stable@vger.kernel.org> # v4.9+
[Joonas: Add Cc: stable]
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240802083850.103694-2-andi.shyti@linux.intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_mman.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/i915_gem_mman.c index a2195e28b625..ce10dd259812 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_mman.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_mman.c @@ -1084,6 +1084,8 @@ int i915_gem_fb_mmap(struct drm_i915_gem_object *obj, struct vm_area_struct *vma mmo = mmap_offset_attach(obj, mmap_type, NULL); if (IS_ERR(mmo)) return PTR_ERR(mmo); + + vma->vm_pgoff += drm_vma_node_start(&mmo->vma_node); } /* |