diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2019-01-28 13:23:53 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-01-28 19:24:13 +0300 |
| commit | 09d7e46b97c663c9b7f5245871a8f19114e9148d (patch) | |
| tree | dc83634a393aba66c727d33782f43c36abc87c45 /drivers/gpu/drm/i915/selftests/i915_gem_gtt.c | |
| parent | 499197dc169601116e106cabe409bf39295893b3 (diff) | |
| download | linux-09d7e46b97c663c9b7f5245871a8f19114e9148d.tar.xz | |
drm/i915: Pull VM lists under the VM mutex.
A starting point to counter the pervasive struct_mutex. For the goal of
avoiding (or at least blocking under them!) global locks during user
request submission, a simple but important step is being able to manage
each clients GTT separately. For which, we want to replace using the
struct_mutex as the guard for all things GTT/VM and switch instead to a
specific mutex inside i915_address_space.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190128102356.15037-2-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/selftests/i915_gem_gtt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/selftests/i915_gem_gtt.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c index 8feb4af308ff..3850ef4a5ec8 100644 --- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c @@ -1237,7 +1237,10 @@ static void track_vma_bind(struct i915_vma *vma) __i915_gem_object_pin_pages(obj); vma->pages = obj->mm.pages; + + mutex_lock(&vma->vm->mutex); list_move_tail(&vma->vm_link, &vma->vm->bound_list); + mutex_unlock(&vma->vm->mutex); } static int exercise_mock(struct drm_i915_private *i915, |