Change-Id: I5dc3f9003e706d3a142aadb559bd85f6e0f2a03f Signed-off-by: Chunming Zhou <David1.Zhou at amd.com> --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 4 ++++ drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 3 +++ drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 9 +++++++++ 3 files changed, 16 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index b17916d..18bbfea 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -2117,6 +2117,10 @@ struct amdgpu_device { /* link all shadow bo */ struct list_head shadow_list; struct mutex shadow_list_lock; + /* link all gtt */ + struct mutex gtt_list_lock; + struct list_head gtt_list; + }; bool amdgpu_device_is_px(struct drm_device *dev); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 9a6a1a9..6cd485a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -1591,6 +1591,9 @@ int amdgpu_device_init(struct amdgpu_device *adev, INIT_LIST_HEAD(&adev->shadow_list); mutex_init(&adev->shadow_list_lock); + INIT_LIST_HEAD(&adev->gtt_list); + mutex_init(&adev->gtt_list_lock); + adev->rmmio_base = pci_resource_start(adev->pdev, 5); adev->rmmio_size = pci_resource_len(adev->pdev, 5); adev->rmmio = ioremap(adev->rmmio_base, adev->rmmio_size); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 2ba3c8d..efeb9a5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -521,6 +521,7 @@ 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) @@ -667,6 +668,9 @@ static int amdgpu_ttm_backend_bind(struct ttm_tt *ttm, ttm->num_pages, (unsigned)gtt->offset); return r; } + mutex_lock(>t->adev->gtt_list_lock); + list_add_tail(>t->list, >t->adev->gtt_list); + mutex_unlock(>t->adev->gtt_list_lock); return 0; } @@ -681,6 +685,10 @@ static int amdgpu_ttm_backend_unbind(struct ttm_tt *ttm) if (gtt->userptr) amdgpu_ttm_tt_unpin_userptr(ttm); + mutex_lock(>t->adev->gtt_list_lock); + list_del_init(>t->list); + mutex_unlock(>t->adev->gtt_list_lock); + return 0; } @@ -717,6 +725,7 @@ 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; } -- 1.9.1