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author | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2021-06-10 09:01:52 +0200 |
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committer | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2021-06-11 10:53:25 +0200 |
commit | cf3e3e86d77970211e0983130e896ae242601003 (patch) | |
tree | 328ad5fa59ab5807c27b2562ca26a94162cc99d4 /include | |
parent | f425821b946847282708121600fffc20344183a0 (diff) | |
download | linux-cf3e3e86d77970211e0983130e896ae242601003.tar.bz2 |
drm/i915: Use ttm mmap handling for ttm bo's.
Use the ttm handlers for servicing page faults, and vm_access.
We do our own validation of read-only access, otherwise use the
ttm handlers as much as possible.
Because the ttm handlers expect the vma_node at vma->base, we slightly
need to massage the mmap handlers to look at vma_node->driver_private
to fetch the bo, if it's NULL, we assume i915's normal mmap_offset uapi
is used.
This is the easiest way to achieve compatibility without changing ttm's
semantics.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210610070152.572423-5-thomas.hellstrom@linux.intel.com
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions