diff options
| author | Arvind Yadav <arvind.yadav@intel.com> | 2026-03-26 18:38:33 +0530 |
|---|---|---|
| committer | Matthew Brost <matthew.brost@intel.com> | 2026-03-26 19:59:53 -0700 |
| commit | 63cf199c0c3274fc0efde11cd854632b64b1113a (patch) | |
| tree | cb2b5361598b7d7202001591da86887ef4031bb4 /tools/perf/scripts/python/stackcollapse.py | |
| parent | 5bfb7e6a7fc0056a974ce13a81c95602a2cae859 (diff) | |
drm/xe/madvise: Block imported and exported dma-bufs
Prevent marking imported or exported dma-bufs as purgeable.
External devices may be accessing these buffers without our
knowledge, making purging unsafe.
Check drm_gem_is_imported() for buffers created by other
drivers and obj->dma_buf for buffers exported to other
drivers. Silently skip these BOs during madvise processing.
This follows drm_gem_shmem's purgeable implementation and
prevents data corruption from purging actively-used shared
buffers.
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: Arvind Yadav <arvind.yadav@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260326130843.3545241-8-arvind.yadav@intel.com
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions