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drm/i915: Only track bound elements of the GTT

Selaa lähdekoodia 
The premise here is to simply avoiding having to acquire the vm->mutex
inside vma create/destroy to update the vm->unbound_lists, to avoid some
nasty lock recursions later.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191004134015.13204-2-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2019-10-04 14:39:56 +01:00
vanhempi b290a78b5c
commit 5e053450c1
5 muutettua tiedostoa jossa 8 lisäystä ja 36 poistoa
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12
drivers/gpu/drm/i915/i915_vma.c
Näytä tiedosto

@@ -218,10 +218,6 @@ vma_create(struct drm_i915_gem_object *obj,
spin_unlock(&obj->vma.lock);
mutex_lock(&vm->mutex);
list_add(&vma->vm_link, &vm->unbound_list);
mutex_unlock(&vm->mutex);
return vma;
err_vma:
@@ -657,7 +653,7 @@ i915_vma_insert(struct i915_vma *vma, u64 size, u64 alignment, u64 flags)
GEM_BUG_ON(!i915_gem_valid_gtt_space(vma, color));
mutex_lock(&vma->vm->mutex);
list_move_tail(&vma->vm_link, &vma->vm->bound_list);
list_add_tail(&vma->vm_link, &vma->vm->bound_list);
mutex_unlock(&vma->vm->mutex);
if (vma->obj) {
@@ -685,7 +681,7 @@ i915_vma_remove(struct i915_vma *vma)
mutex_lock(&vma->vm->mutex);
drm_mm_remove_node(&vma->node);
list_move_tail(&vma->vm_link, &vma->vm->unbound_list);
list_del(&vma->vm_link);
mutex_unlock(&vma->vm->mutex);
/*
@@ -798,10 +794,6 @@ static void __i915_vma_destroy(struct i915_vma *vma)
GEM_BUG_ON(drm_mm_node_allocated(&vma->node));
GEM_BUG_ON(vma->fence);
mutex_lock(&vma->vm->mutex);
list_del(&vma->vm_link);
mutex_unlock(&vma->vm->mutex);
if (vma->obj) {
struct drm_i915_gem_object *obj = vma->obj;