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| author | Matthew Auld <matthew.auld@intel.com> | 2022-07-11 09:58:59 +0100 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2022-07-12 18:21:45 -0400 |
| commit | aff1e0b09b54b64944b7fe32997229552737b9e9 (patch) | |
| tree | a432f3acba939bf7927d6c51322ad33caf8c7c4c /drivers/usb/cdns3/cdns3-trace.h | |
| parent | 896dcabd1f8f613c533d948df17408c41f8929f5 (diff) | |
drm/i915/ttm: fix sg_table construction
If we encounter some monster sized local-memory page that exceeds the
maximum sg length (UINT32_MAX), ensure that don't end up with some
misaligned address in the entry that follows, leading to fireworks
later. Also ensure we have some coverage of this in the selftests.
v2(Chris):
- Use round_down consistently to avoid udiv errors
v3(Nirmoy):
- Also update the max_segment in the selftest
Fixes: f701b16d4cc5 ("drm/i915/ttm: add i915_sg_from_buddy_resource")
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/6379
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Nirmoy Das <nirmoy.das@linux.intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220711085859.24198-1-matthew.auld@intel.com
(cherry picked from commit bc99f1209f19fefa3ee11e77464ccfae541f4291)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers/usb/cdns3/cdns3-trace.h')
0 files changed, 0 insertions, 0 deletions