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| author | Junrui Luo <moonafterrain@outlook.com> | 2026-08-17 14:50:40 +0800 |
|---|---|---|
| committer | Lyude Paul <lyude@redhat.com> | 2026-09-17 16:16:37 -0400 |
| commit | 64ca4cdd1031206424e6455f0ae4fb0560d8f46a (patch) | |
| tree | 581f94d2bca69926d007b984ea84b8bb7362985b /tools/perf/scripts/python/stackcollapse.py | |
| parent | 97077ac87afe9e91ec074ef0be64454e7ccbf344 (diff) | |
drm/nouveau/dmem: pin VRAM for the whole registered range
Commit c32287471077 ("gpu/drm/nouveau: enable THP support for GPU memory
migration") grew the device-private region that
nouveau_dmem_chunk_alloc() registers from DMEM_CHUNK_SIZE to
DMEM_CHUNK_SIZE * NR_CHUNKS, but left the VRAM buffer object backing that
region at DMEM_CHUNK_SIZE.
nouveau_dmem_page_addr() returns chunk->bo->offset plus the page's offset
within the registered region, so every page past the first chunk resolves
to VRAM outside the buffer object.
Size the buffer object to the region it backs.
Fixes: c32287471077 ("gpu/drm/nouveau: enable THP support for GPU memory migration")
Reported-by: Yuhao Jiang <danisjiang@gmail.com>
Assisted-by: LLM
Cc: stable@vger.kernel.org
Signed-off-by: Junrui Luo <moonafterrain@outlook.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patch.msgid.link/20260817-nouveau-fixes-v1-1-f518d0c735f3@outlook.com
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions