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| author |   Chris Wilson <chris@chris-wilson.co.uk> | 2019-01-28 10:23:53 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-01-28 16:24:13 +0000 |
| commit | 09d7e46b97c663c9b7f5245871a8f19114e9148d (patch) | |
| tree | dc83634a393aba66c727d33782f43c36abc87c45 /drivers/gpu/drm/i915/i915_gem_stolen.c | |
| parent | drm/i915: Stop tracking MRU activity on VMA (diff) | |
| download | linux-dev-09d7e46b97c663c9b7f5245871a8f19114e9148d.tar.xz linux-dev-09d7e46b97c663c9b7f5245871a8f19114e9148d.zip | |
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/i915_gem_stolen.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_stolen.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c index a9e365789686..74a9661479ca 100644 --- a/drivers/gpu/drm/i915/i915_gem_stolen.c +++ b/drivers/gpu/drm/i915/i915_gem_stolen.c @@ -702,7 +702,9 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_i915_private *dev_priv vma->flags |= I915_VMA_GLOBAL_BIND; __i915_vma_set_map_and_fenceable(vma); + mutex_lock(&ggtt->vm.mutex); list_move_tail(&vma->vm_link, &ggtt->vm.bound_list); + mutex_unlock(&ggtt->vm.mutex); spin_lock(&dev_priv->mm.obj_lock); list_move_tail(&obj->mm.link, &dev_priv->mm.bound_list); |