diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2021-04-21 18:33:58 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2021-05-12 20:52:24 +0300 |
| commit | 4819d16d91145966ce03818a95169df1fd56b299 (patch) | |
| tree | 12982896f3416035c53b6335e10f06ef87b63810 /drivers/opp | |
| parent | a5c936add6a23c15c6ae538ab7a12f80751fdf0f (diff) | |
drm/i915: Avoid div-by-zero on gen2
Gen2 tiles are 2KiB in size so i915_gem_object_get_tile_row_size()
can in fact return <4KiB, which leads to div-by-zero here.
Avoid that.
Not sure i915_gem_object_get_tile_row_size() is entirely
sane anyway since it doesn't account for the different tile
layouts on i8xx/i915...
I'm not able to hit this before commit 6846895fde05 ("drm/i915:
Replace PIN_NONFAULT with calls to PIN_NOEVICT") and it looks
like I also need to run recent version of Mesa. With those in
place xonotic trips on this quite easily on my 85x.
Cc: stable@vger.kernel.org
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210421153401.13847-2-ville.syrjala@linux.intel.com
(cherry picked from commit ed52c62d386f764194e0184fdb905d5f24194cae)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/opp')
0 files changed, 0 insertions, 0 deletions