git/linux-cryptodev-2.6
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git synced 2026-04-27 11:58:32 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/amdgpu: Optimize mutex usage (v4)

Browse Source 
In original function amdgpu_bo_list_get, the waiting
for result->lock can be quite long while mutex
bo_list_lock was holding. It can make other tasks
waiting for bo_list_lock for long period.

Secondly, this patch allows several tasks(readers of idr)
to proceed at the same time.

v2: use rcu and kref (Dave Airlie and Christian König)
v3: update v1 commit message (Michel Dänzer)
v4: rebase on upstream (Alex Deucher)

Signed-off-by: Alex Xie <AlexBin.Xie@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Alex Xie
2017-06-16 09:07:29 -04:00
committed by Alex Deucher
parent 99eea4df90
commit 5ac55629d6
2 changed files with 30 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/amd/amdgpu/amdgpu.h
View File

@@ -869,6 +869,8 @@ struct amdgpu_fpriv {
struct amdgpu_bo_list {
struct mutex lock;
struct rcu_head rhead;
struct kref refcount;
struct amdgpu_bo *gds_obj;
struct amdgpu_bo *gws_obj;
struct amdgpu_bo *oa_obj;