Since
commit 43566dedde54f9729113f5f9fde77d53e75e61e9
Author: Chris Wilson <ch...@chris-wilson.co.uk>
Date: Fri Jan 2 16:29:29 2015 +0530
drm/i915: Broaden application of set-domain(GTT)
we allowed objects to be in the GTT domain, but unbound. Therefore
removing the GTT cache domain when removing the GGTT vma is no longer
semantically correct.
An unfortunate side-effect is we lose the wondrously named
i915_gem_object_finish_gtt(), not to be confused with
i915_gem_gtt_finish_object()!
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
Cc: Akash Goel <akash.g...@intel.com>
Cc: Joonas Lahtinen <joonas.lahti...@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursu...@intel.com>
---
drivers/gpu/drm/i915/i915_gem.c | 26 +++-----------------------
1 file changed, 3 insertions(+), 23 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 6ceed074f738..08287d8857c9 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2618,27 +2618,6 @@ i915_gem_object_sync(struct drm_i915_gem_object *obj,
return 0;
}
-static void i915_gem_object_finish_gtt(struct drm_i915_gem_object *obj)
-{
- u32 old_write_domain, old_read_domains;
-
- /* Force a pagefault for domain tracking on next user access */
- i915_gem_release_mmap(obj);
-
- if ((obj->base.read_domains & I915_GEM_DOMAIN_GTT) == 0)
- return;
-
- old_read_domains = obj->base.read_domains;
- old_write_domain = obj->base.write_domain;
-
- obj->base.read_domains &= ~I915_GEM_DOMAIN_GTT;
- obj->base.write_domain &= ~I915_GEM_DOMAIN_GTT;
-
- trace_i915_gem_object_change_domain(obj,
- old_read_domains,
- old_write_domain);
-}
-
static void i915_vma_destroy(struct i915_vma *vma)
{
GEM_BUG_ON(vma->node.allocated);
@@ -2691,13 +2670,14 @@ int i915_vma_unbind(struct i915_vma *vma)
GEM_BUG_ON(obj->pages == NULL);
if (vma->map_and_fenceable) {
- i915_gem_object_finish_gtt(obj);
-
/* release the fence reg _after_ flushing */
ret = i915_vma_put_fence(vma);
if (ret)
return ret;
+ /* Force a pagefault for domain tracking on next user access */
+ i915_gem_release_mmap(obj);
+
if (vma->iomap) {
iounmap(vma->iomap);
vma->iomap = NULL;
--
2.7.0.rc3
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