diff options
author | Chunming Zhou <David1.Zhou@amd.com> | 2016-08-30 08:13:10 (GMT) |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2016-08-31 19:21:12 (GMT) |
commit | 5c1354bd30c118326236e13cfdc49db03d2b5855 (patch) | |
tree | cbcbcabc509367914f3224167c6aa2fa12e5b487 /drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | |
parent | 78fbb6859b739f7f67c820ab8c9e7a25add977b5 (diff) | |
download | linux-5c1354bd30c118326236e13cfdc49db03d2b5855.tar.xz |
drm/amdgpu: link all gtt when binding them V2
V2:
spin lock instead of mutex for gtt list
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 5447973..26ca3dd 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -520,6 +520,7 @@ struct amdgpu_ttm_tt { spinlock_t guptasklock; struct list_head guptasks; atomic_t mmu_invalidations; + struct list_head list; }; int amdgpu_ttm_tt_get_user_pages(struct ttm_tt *ttm, struct page **pages) @@ -666,6 +667,9 @@ static int amdgpu_ttm_backend_bind(struct ttm_tt *ttm, ttm->num_pages, (unsigned)gtt->offset); return r; } + spin_lock(>t->adev->gtt_list_lock); + list_add_tail(>t->list, >t->adev->gtt_list); + spin_unlock(>t->adev->gtt_list_lock); return 0; } @@ -680,6 +684,10 @@ static int amdgpu_ttm_backend_unbind(struct ttm_tt *ttm) if (gtt->userptr) amdgpu_ttm_tt_unpin_userptr(ttm); + spin_lock(>t->adev->gtt_list_lock); + list_del_init(>t->list); + spin_unlock(>t->adev->gtt_list_lock); + return 0; } @@ -716,6 +724,7 @@ static struct ttm_tt *amdgpu_ttm_tt_create(struct ttm_bo_device *bdev, kfree(gtt); return NULL; } + INIT_LIST_HEAD(>t->list); return >t->ttm.ttm; } |