xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm: Apply tight eviction scanning to color_adjust

Browse Source 
Using mm->color_adjust makes the eviction scanner much tricker since we
don't know the actual neighbours of the target hole until after it is
created (after scanning is complete). To work out whether we need to
evict the neighbours because they impact upon the hole, we have to then
check the hole afterwards - requiring an extra step in the user of the
eviction scanner when they apply color_adjust.

v2: Massage kerneldoc.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161222083641.2691-34-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2016-12-22 08:36:36 +00:00
committed by Daniel Vetter
parent f29051f12f
commit 3fa489dabe
4 changed files with 77 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/gpu/drm/i915/i915_gem_evict.c
View File

@@ -108,6 +108,7 @@ i915_gem_evict_something(struct i915_address_space *vm,
NULL,
}, **phase;
struct i915_vma *vma, *next;
struct drm_mm_node *node;
int ret;
lockdep_assert_held(&vm->dev->struct_mutex);
@@ -211,6 +212,12 @@ found:
if (ret == 0)
ret = i915_vma_unbind(vma);
}
while (ret == 0 && (node = drm_mm_scan_color_evict(&scan))) {
vma = container_of(node, struct i915_vma, node);
ret = i915_vma_unbind(vma);
}
return ret;
}