diff options
| author | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2018-09-26 09:03:53 +0100 |
|---|---|---|
| committer | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2018-09-27 11:26:52 +0100 |
| commit | f8e57863f81f962a1837d6a17825752de5bc23f7 (patch) | |
| tree | 6f46e340dbc3fc58e3db5dfb3834ad6c82e0d2db /drivers/gpu/drm/i915/i915_gem_gtt.c | |
| parent | dee4a0f8e70db36105e43dba5652737df5812190 (diff) | |
| download | linux-f8e57863f81f962a1837d6a17825752de5bc23f7.tar.bz2 | |
drm/i915: Trim partial view sg lists
Partial views are small but there can be many of them, and since the sg
list space for them is allocated pessimistically, we can save some slab by
trimming the unused tail entries.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180926080353.20867-1-tvrtko.ursulin@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_gtt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_gtt.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index f6c7ab413081..1ec721c20581 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -3835,6 +3835,8 @@ intel_partial_pages(const struct i915_ggtt_view *view, count -= len >> PAGE_SHIFT; if (count == 0) { sg_mark_end(sg); + i915_sg_trim(st); /* Drop any unused tail entries. */ + return st; } |