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

drm: Simplify drm_mm scan-list manipulation

Browse Source 
Since we mandate a strict reverse-order of drm_mm_scan_remove_block()
after drm_mm_scan_add_block() we can further simplify the list
manipulations when generating the temporary scan-hole.

v2: Highlight the games being played with the lists to track the scan
holes without allocation.

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/20161222083641.2691-33-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2016-12-22 08:36:35 +00:00
committed by Daniel Vetter
parent 9a956b1548
commit f29051f12f
2 changed files with 19 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
include/drm/drm_mm.h
View File

@@ -74,11 +74,8 @@ struct drm_mm_node {
struct list_head hole_stack;
struct rb_node rb;
unsigned hole_follows : 1;
unsigned scanned_block : 1;
unsigned scanned_prev_free : 1;
unsigned scanned_next_free : 1;
unsigned scanned_preceeds_hole : 1;
unsigned allocated : 1;
bool scanned_block : 1;
unsigned long color;
u64 start;
u64 size;
@@ -118,8 +115,6 @@ struct drm_mm_scan {
u64 hit_start;
u64 hit_end;
struct drm_mm_node *prev_scanned_node;
unsigned long color;
unsigned int flags;
};