On Tue, Oct 06, 2020 at 10:15:44AM +1000, Dave Airlie wrote:
> On Fri, 2 Oct 2020 at 18:47, Christian König
> <ckoenig.leichtzumerken@xxxxxxxxx> wrote:
> >
> > Rename ttm_bo_device to ttm_device.
> > Rename ttm_bo_driver to ttm_device_funcs.
> > Rename ttm_bo_global to ttm_global.
> >
> > Move global and device related functions to ttm_device.[ch].
>
> I've a problem with doing this now, since we are churning a lot of
> stuff into drm-misc-next this will make reverts a lot messier than
> required in order to faciliate regression testing.
>
> I've already burned 2-3 days on vmwgfx regressions and I'm not really
> wanting to add major renames or restructures until we have settled
> things down a bit more.
>
> I'm not sure when would be a good time, and maybe the global one would
> be a lot less of impact vs the ttm_bo_device->ttm_Device one.
Well 10 years of ttm refactoring in 2 months is maybe a bit rough :-)
What about waiting until -rc2, backmerging that, and then landing the next
round of churn? Should at least give us another month or so for fixing
issues and people testing stuff.
Aside from that I don't think the pain can be avoided since we don't have
a massive hw ci like mesa.
-Daniel
>
> Dave.
> >
> > No functional change.
> >
> > Signed-off-by: Christian König <christian.koenig@xxxxxxx>
> > ---
> > drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 +-
> > .../gpu/drm/amd/amdgpu/amdgpu_amdkfd_fence.c | 6 +-
> > drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c | 2 +-
> > drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 24 +-
> > drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h | 2 +-
> > drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 8 +-
> > drivers/gpu/drm/drm_gem_vram_helper.c | 14 +-
> > drivers/gpu/drm/nouveau/nouveau_bo.c | 18 +-
> > drivers/gpu/drm/nouveau/nouveau_bo.h | 2 +-
> > drivers/gpu/drm/nouveau/nouveau_drv.h | 2 +-
> > drivers/gpu/drm/nouveau/nouveau_sgdma.c | 6 +-
> > drivers/gpu/drm/nouveau/nouveau_ttm.c | 4 +-
> > drivers/gpu/drm/nouveau/nouveau_ttm.h | 8 +-
> > drivers/gpu/drm/qxl/qxl_drv.h | 4 +-
> > drivers/gpu/drm/qxl/qxl_release.c | 6 +-
> > drivers/gpu/drm/qxl/qxl_ttm.c | 16 +-
> > drivers/gpu/drm/radeon/radeon.h | 6 +-
> > drivers/gpu/drm/radeon/radeon_ttm.c | 34 +-
> > drivers/gpu/drm/ttm/Makefile | 2 +-
> > drivers/gpu/drm/ttm/ttm_agp_backend.c | 2 +-
> > drivers/gpu/drm/ttm/ttm_bo.c | 308 +++------------
> > drivers/gpu/drm/ttm/ttm_bo_util.c | 24 +-
> > drivers/gpu/drm/ttm/ttm_bo_vm.c | 24 +-
> > drivers/gpu/drm/ttm/ttm_device.c | 222 +++++++++++
> > drivers/gpu/drm/ttm/ttm_execbuf_util.c | 8 +-
> > drivers/gpu/drm/ttm/ttm_memory.c | 2 +-
> > drivers/gpu/drm/ttm/ttm_range_manager.c | 4 +-
> > drivers/gpu/drm/ttm/ttm_resource.c | 4 +-
> > drivers/gpu/drm/ttm/ttm_tt.c | 26 +-
> > drivers/gpu/drm/vmwgfx/vmwgfx_blit.c | 4 +-
> > drivers/gpu/drm/vmwgfx/vmwgfx_bo.c | 4 +-
> > drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 6 +-
> > drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 4 +-
> > drivers/gpu/drm/vmwgfx/vmwgfx_resource.c | 2 +-
> > drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c | 14 +-
> > include/drm/drm_gem_vram_helper.h | 6 +-
> > include/drm/ttm/ttm_bo_api.h | 44 +--
> > include/drm/ttm/ttm_bo_driver.h | 357 +----------------
> > include/drm/ttm/ttm_device.h | 366 ++++++++++++++++++
> > include/drm/ttm/ttm_resource.h | 4 +-
> > include/drm/ttm/ttm_tt.h | 12 +-
> > 41 files changed, 833 insertions(+), 780 deletions(-)
> > create mode 100644 drivers/gpu/drm/ttm/ttm_device.c
> > create mode 100644 include/drm/ttm/ttm_device.h
> >
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> > index 4009d2e30727..a03f9bd3ea4b 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> > @@ -999,7 +999,7 @@ static inline struct drm_device *adev_to_drm(struct amdgpu_device *adev)
> > return &adev->ddev;
> > }
> >
> > -static inline struct amdgpu_device *amdgpu_ttm_adev(struct ttm_bo_device *bdev)
> > +static inline struct amdgpu_device *amdgpu_ttm_adev(struct ttm_device *bdev)
> > {
> > return container_of(bdev, struct amdgpu_device, mman.bdev);
> > }
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_fence.c
> > index 3107b9575929..5af464933976 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_fence.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_fence.c
> > @@ -40,13 +40,13 @@ static atomic_t fence_seq = ATOMIC_INIT(0);
> > * All the BOs in a process share an eviction fence. When process X wants
> > * to map VRAM memory but TTM can't find enough space, TTM will attempt to
> > * evict BOs from its LRU list. TTM checks if the BO is valuable to evict
> > - * by calling ttm_bo_driver->eviction_valuable().
> > + * by calling ttm_device_funcs->eviction_valuable().
> > *
> > - * ttm_bo_driver->eviction_valuable() - will return false if the BO belongs
> > + * ttm_device_funcs->eviction_valuable() - will return false if the BO belongs
> > * to process X. Otherwise, it will return true to indicate BO can be
> > * evicted by TTM.
> > *
> > - * If ttm_bo_driver->eviction_valuable returns true, then TTM will continue
> > + * If ttm_device_funcs->eviction_valuable returns true, then TTM will continue
> > * the evcition process for that BO by calling ttm_bo_evict --> amdgpu_bo_move
> > * --> amdgpu_copy_buffer(). This sets up job in GPU scheduler.
> > *
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
> > index e01e681d2a60..7f25f2c0de38 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
> > @@ -71,7 +71,7 @@
> > */
> > static int amdgpu_gart_dummy_page_init(struct amdgpu_device *adev)
> > {
> > - struct page *dummy_page = ttm_bo_glob.dummy_read_page;
> > + struct page *dummy_page = ttm_glob.dummy_read_page;
> >
> > if (adev->dummy_page_addr)
> > return 0;
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> > index 8cdec58b9106..088dcfce6bca 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> > @@ -63,7 +63,7 @@
> >
> > #define AMDGPU_TTM_VRAM_MAX_DW_READ (size_t)128
> >
> > -static int amdgpu_ttm_backend_bind(struct ttm_bo_device *bdev,
> > +static int amdgpu_ttm_backend_bind(struct ttm_device *bdev,
> > struct ttm_tt *ttm,
> > struct ttm_resource *bo_mem);
> >
> > @@ -735,7 +735,7 @@ static int amdgpu_bo_move(struct ttm_buffer_object *bo, bool evict,
> > *
> > * Called by ttm_mem_io_reserve() ultimately via ttm_bo_vm_fault()
> > */
> > -static int amdgpu_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_resource *mem)
> > +static int amdgpu_ttm_io_mem_reserve(struct ttm_device *bdev, struct ttm_resource *mem)
> > {
> > struct amdgpu_device *adev = amdgpu_ttm_adev(bdev);
> > struct drm_mm_node *mm_node = mem->mm_node;
> > @@ -982,7 +982,7 @@ void amdgpu_ttm_tt_set_user_pages(struct ttm_tt *ttm, struct page **pages)
> > *
> > * Called by amdgpu_ttm_backend_bind()
> > **/
> > -static int amdgpu_ttm_tt_pin_userptr(struct ttm_bo_device *bdev,
> > +static int amdgpu_ttm_tt_pin_userptr(struct ttm_device *bdev,
> > struct ttm_tt *ttm)
> > {
> > struct amdgpu_device *adev = amdgpu_ttm_adev(bdev);
> > @@ -1019,7 +1019,7 @@ static int amdgpu_ttm_tt_pin_userptr(struct ttm_bo_device *bdev,
> > /**
> > * amdgpu_ttm_tt_unpin_userptr - Unpin and unmap userptr pages
> > */
> > -static void amdgpu_ttm_tt_unpin_userptr(struct ttm_bo_device *bdev,
> > +static void amdgpu_ttm_tt_unpin_userptr(struct ttm_device *bdev,
> > struct ttm_tt *ttm)
> > {
> > struct amdgpu_device *adev = amdgpu_ttm_adev(bdev);
> > @@ -1103,7 +1103,7 @@ static int amdgpu_ttm_gart_bind(struct amdgpu_device *adev,
> > * Called by ttm_tt_bind() on behalf of ttm_bo_handle_move_mem().
> > * This handles binding GTT memory to the device address space.
> > */
> > -static int amdgpu_ttm_backend_bind(struct ttm_bo_device *bdev,
> > +static int amdgpu_ttm_backend_bind(struct ttm_device *bdev,
> > struct ttm_tt *ttm,
> > struct ttm_resource *bo_mem)
> > {
> > @@ -1238,7 +1238,7 @@ int amdgpu_ttm_recover_gart(struct ttm_buffer_object *tbo)
> > * Called by ttm_tt_unbind() on behalf of ttm_bo_move_ttm() and
> > * ttm_tt_destroy().
> > */
> > -static void amdgpu_ttm_backend_unbind(struct ttm_bo_device *bdev,
> > +static void amdgpu_ttm_backend_unbind(struct ttm_device *bdev,
> > struct ttm_tt *ttm)
> > {
> > struct amdgpu_device *adev = amdgpu_ttm_adev(bdev);
> > @@ -1263,7 +1263,7 @@ static void amdgpu_ttm_backend_unbind(struct ttm_bo_device *bdev,
> > gtt->bound = false;
> > }
> >
> > -static void amdgpu_ttm_backend_destroy(struct ttm_bo_device *bdev,
> > +static void amdgpu_ttm_backend_destroy(struct ttm_device *bdev,
> > struct ttm_tt *ttm)
> > {
> > struct amdgpu_ttm_tt *gtt = (void *)ttm;
> > @@ -1316,7 +1316,7 @@ static struct ttm_tt *amdgpu_ttm_tt_create(struct ttm_buffer_object *bo,
> > * Map the pages of a ttm_tt object to an address space visible
> > * to the underlying device.
> > */
> > -static int amdgpu_ttm_tt_populate(struct ttm_bo_device *bdev,
> > +static int amdgpu_ttm_tt_populate(struct ttm_device *bdev,
> > struct ttm_tt *ttm,
> > struct ttm_operation_ctx *ctx)
> > {
> > @@ -1371,7 +1371,7 @@ static int amdgpu_ttm_tt_populate(struct ttm_bo_device *bdev,
> > * Unmaps pages of a ttm_tt object from the device address space and
> > * unpopulates the page array backing it.
> > */
> > -static void amdgpu_ttm_tt_unpopulate(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
> > +static void amdgpu_ttm_tt_unpopulate(struct ttm_device *bdev, struct ttm_tt *ttm)
> > {
> > struct amdgpu_ttm_tt *gtt = (void *)ttm;
> > struct amdgpu_device *adev;
> > @@ -1697,7 +1697,7 @@ static int amdgpu_ttm_access_memory(struct ttm_buffer_object *bo,
> > return ret;
> > }
> >
> > -static struct ttm_bo_driver amdgpu_bo_driver = {
> > +static struct ttm_device_funcs amdgpu_bo_driver = {
> > .ttm_tt_create = &amdgpu_ttm_tt_create,
> > .ttm_tt_populate = &amdgpu_ttm_tt_populate,
> > .ttm_tt_unpopulate = &amdgpu_ttm_tt_unpopulate,
> > @@ -1881,7 +1881,7 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
> > mutex_init(&adev->mman.gtt_window_lock);
> >
> > /* No others user of address space so set it to 0 */
> > - r = ttm_bo_device_init(&adev->mman.bdev,
> > + r = ttm_device_init(&adev->mman.bdev,
> > &amdgpu_bo_driver,
> > adev_to_drm(adev)->anon_inode->i_mapping,
> > adev_to_drm(adev)->vma_offset_manager,
> > @@ -2036,7 +2036,7 @@ void amdgpu_ttm_fini(struct amdgpu_device *adev)
> > ttm_range_man_fini(&adev->mman.bdev, AMDGPU_PL_GDS);
> > ttm_range_man_fini(&adev->mman.bdev, AMDGPU_PL_GWS);
> > ttm_range_man_fini(&adev->mman.bdev, AMDGPU_PL_OA);
> > - ttm_bo_device_release(&adev->mman.bdev);
> > + ttm_device_release(&adev->mman.bdev);
> > adev->mman.initialized = false;
> > DRM_INFO("amdgpu: ttm finalized\n");
> > }
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
> > index a87951b2f06d..e5d612415eff 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
> > @@ -53,7 +53,7 @@ struct amdgpu_gtt_mgr {
> > };
> >
> > struct amdgpu_mman {
> > - struct ttm_bo_device bdev;
> > + struct ttm_device bdev;
> > bool mem_global_referenced;
> > bool initialized;
> > void __iomem *aper_base_kaddr;
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> > index 3e6243623082..dfbb9b025654 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> > @@ -638,15 +638,15 @@ void amdgpu_vm_move_to_lru_tail(struct amdgpu_device *adev,
> > struct amdgpu_vm_bo_base *bo_base;
> >
> > if (vm->bulk_moveable) {
> > - spin_lock(&ttm_bo_glob.lru_lock);
> > + spin_lock(&ttm_glob.lru_lock);
> > ttm_bo_bulk_move_lru_tail(&vm->lru_bulk_move);
> > - spin_unlock(&ttm_bo_glob.lru_lock);
> > + spin_unlock(&ttm_glob.lru_lock);
> > return;
> > }
> >
> > memset(&vm->lru_bulk_move, 0, sizeof(vm->lru_bulk_move));
> >
> > - spin_lock(&ttm_bo_glob.lru_lock);
> > + spin_lock(&ttm_glob.lru_lock);
> > list_for_each_entry(bo_base, &vm->idle, vm_status) {
> > struct amdgpu_bo *bo = bo_base->bo;
> >
> > @@ -658,7 +658,7 @@ void amdgpu_vm_move_to_lru_tail(struct amdgpu_device *adev,
> > ttm_bo_move_to_lru_tail(&bo->shadow->tbo,
> > &vm->lru_bulk_move);
> > }
> > - spin_unlock(&ttm_bo_glob.lru_lock);
> > + spin_unlock(&ttm_glob.lru_lock);
> >
> > vm->bulk_moveable = true;
> > }
> > diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c b/drivers/gpu/drm/drm_gem_vram_helper.c
> > index b9c0ea720efd..f7a027123975 100644
> > --- a/drivers/gpu/drm/drm_gem_vram_helper.c
> > +++ b/drivers/gpu/drm/drm_gem_vram_helper.c
> > @@ -187,7 +187,7 @@ struct drm_gem_vram_object *drm_gem_vram_create(struct drm_device *dev,
> > struct drm_gem_vram_object *gbo;
> > struct drm_gem_object *gem;
> > struct drm_vram_mm *vmm = dev->vram_mm;
> > - struct ttm_bo_device *bdev;
> > + struct ttm_device *bdev;
> > int ret;
> > size_t acc_size;
> >
> > @@ -555,7 +555,7 @@ int drm_gem_vram_fill_create_dumb(struct drm_file *file,
> > EXPORT_SYMBOL(drm_gem_vram_fill_create_dumb);
> >
> > /*
> > - * Helpers for struct ttm_bo_driver
> > + * Helpers for struct ttm_device_funcs
> > */
> >
> > static bool drm_is_gem_vram(struct ttm_buffer_object *bo)
> > @@ -886,7 +886,7 @@ static const struct drm_gem_object_funcs drm_gem_vram_object_funcs = {
> > * TTM TT
> > */
> >
> > -static void bo_driver_ttm_tt_destroy(struct ttm_bo_device *bdev, struct ttm_tt *tt)
> > +static void bo_driver_ttm_tt_destroy(struct ttm_device *bdev, struct ttm_tt *tt)
> > {
> > ttm_tt_destroy_common(bdev, tt);
> > ttm_tt_fini(tt);
> > @@ -947,7 +947,7 @@ static void bo_driver_move_notify(struct ttm_buffer_object *bo,
> > drm_gem_vram_bo_driver_move_notify(gbo, evict, new_mem);
> > }
> >
> > -static int bo_driver_io_mem_reserve(struct ttm_bo_device *bdev,
> > +static int bo_driver_io_mem_reserve(struct ttm_device *bdev,
> > struct ttm_resource *mem)
> > {
> > struct drm_vram_mm *vmm = drm_vram_mm_of_bdev(bdev);
> > @@ -967,7 +967,7 @@ static int bo_driver_io_mem_reserve(struct ttm_bo_device *bdev,
> > return 0;
> > }
> >
> > -static struct ttm_bo_driver bo_driver = {
> > +static struct ttm_device_funcs bo_driver = {
> > .ttm_tt_create = bo_driver_ttm_tt_create,
> > .ttm_tt_destroy = bo_driver_ttm_tt_destroy,
> > .eviction_valuable = ttm_bo_eviction_valuable,
> > @@ -1017,7 +1017,7 @@ static int drm_vram_mm_init(struct drm_vram_mm *vmm, struct drm_device *dev,
> > vmm->vram_base = vram_base;
> > vmm->vram_size = vram_size;
> >
> > - ret = ttm_bo_device_init(&vmm->bdev, &bo_driver,
> > + ret = ttm_device_init(&vmm->bdev, &bo_driver,
> > dev->anon_inode->i_mapping,
> > dev->vma_offset_manager,
> > true);
> > @@ -1035,7 +1035,7 @@ static int drm_vram_mm_init(struct drm_vram_mm *vmm, struct drm_device *dev,
> > static void drm_vram_mm_cleanup(struct drm_vram_mm *vmm)
> > {
> > ttm_range_man_fini(&vmm->bdev, TTM_PL_VRAM);
> > - ttm_bo_device_release(&vmm->bdev);
> > + ttm_device_release(&vmm->bdev);
> > }
> >
> > /*
> > diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
> > index b37dfd12c7b9..912bc3204c4e 100644
> > --- a/drivers/gpu/drm/nouveau/nouveau_bo.c
> > +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
> > @@ -44,7 +44,7 @@
> > #include <nvif/if500b.h>
> > #include <nvif/if900b.h>
> >
> > -static int nouveau_ttm_tt_bind(struct ttm_bo_device *bdev, struct ttm_tt *ttm,
> > +static int nouveau_ttm_tt_bind(struct ttm_device *bdev, struct ttm_tt *ttm,
> > struct ttm_resource *reg);
> >
> > /*
> > @@ -674,7 +674,7 @@ nouveau_ttm_tt_create(struct ttm_buffer_object *bo, uint32_t page_flags)
> > }
> >
> > static int
> > -nouveau_ttm_tt_bind(struct ttm_bo_device *bdev, struct ttm_tt *ttm,
> > +nouveau_ttm_tt_bind(struct ttm_device *bdev, struct ttm_tt *ttm,
> > struct ttm_resource *reg)
> > {
> > #if IS_ENABLED(CONFIG_AGP)
> > @@ -690,7 +690,7 @@ nouveau_ttm_tt_bind(struct ttm_bo_device *bdev, struct ttm_tt *ttm,
> > }
> >
> > static void
> > -nouveau_ttm_tt_unbind(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
> > +nouveau_ttm_tt_unbind(struct ttm_device *bdev, struct ttm_tt *ttm)
> > {
> > #if IS_ENABLED(CONFIG_AGP)
> > struct nouveau_drm *drm = nouveau_bdev(bdev);
> > @@ -1101,7 +1101,7 @@ nouveau_ttm_io_mem_free_locked(struct nouveau_drm *drm,
> > }
> >
> > static int
> > -nouveau_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_resource *reg)
> > +nouveau_ttm_io_mem_reserve(struct ttm_device *bdev, struct ttm_resource *reg)
> > {
> > struct nouveau_drm *drm = nouveau_bdev(bdev);
> > struct nvkm_device *device = nvxx_device(&drm->client.device);
> > @@ -1210,7 +1210,7 @@ nouveau_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_resource *reg)
> > }
> >
> > static void
> > -nouveau_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_resource *reg)
> > +nouveau_ttm_io_mem_free(struct ttm_device *bdev, struct ttm_resource *reg)
> > {
> > struct nouveau_drm *drm = nouveau_bdev(bdev);
> >
> > @@ -1270,7 +1270,7 @@ vm_fault_t nouveau_ttm_fault_reserve_notify(struct ttm_buffer_object *bo)
> > }
> >
> > static int
> > -nouveau_ttm_tt_populate(struct ttm_bo_device *bdev,
> > +nouveau_ttm_tt_populate(struct ttm_device *bdev,
> > struct ttm_tt *ttm, struct ttm_operation_ctx *ctx)
> > {
> > struct ttm_dma_tt *ttm_dma = (void *)ttm;
> > @@ -1307,7 +1307,7 @@ nouveau_ttm_tt_populate(struct ttm_bo_device *bdev,
> > }
> >
> > static void
> > -nouveau_ttm_tt_unpopulate(struct ttm_bo_device *bdev,
> > +nouveau_ttm_tt_unpopulate(struct ttm_device *bdev,
> > struct ttm_tt *ttm)
> > {
> > struct ttm_dma_tt *ttm_dma = (void *)ttm;
> > @@ -1339,7 +1339,7 @@ nouveau_ttm_tt_unpopulate(struct ttm_bo_device *bdev,
> > }
> >
> > static void
> > -nouveau_ttm_tt_destroy(struct ttm_bo_device *bdev,
> > +nouveau_ttm_tt_destroy(struct ttm_device *bdev,
> > struct ttm_tt *ttm)
> > {
> > #if IS_ENABLED(CONFIG_AGP)
> > @@ -1365,7 +1365,7 @@ nouveau_bo_fence(struct nouveau_bo *nvbo, struct nouveau_fence *fence, bool excl
> > dma_resv_add_shared_fence(resv, &fence->base);
> > }
> >
> > -struct ttm_bo_driver nouveau_bo_driver = {
> > +struct ttm_device_funcs nouveau_bo_driver = {
> > .ttm_tt_create = &nouveau_ttm_tt_create,
> > .ttm_tt_populate = &nouveau_ttm_tt_populate,
> > .ttm_tt_unpopulate = &nouveau_ttm_tt_unpopulate,
> > diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.h b/drivers/gpu/drm/nouveau/nouveau_bo.h
> > index 641ef6298a0e..2fee7d50ef09 100644
> > --- a/drivers/gpu/drm/nouveau/nouveau_bo.h
> > +++ b/drivers/gpu/drm/nouveau/nouveau_bo.h
> > @@ -70,7 +70,7 @@ nouveau_bo_ref(struct nouveau_bo *ref, struct nouveau_bo **pnvbo)
> > return 0;
> > }
> >
> > -extern struct ttm_bo_driver nouveau_bo_driver;
> > +extern struct ttm_device_funcs nouveau_bo_driver;
> >
> > void nouveau_bo_move_init(struct nouveau_drm *);
> > struct nouveau_bo *nouveau_bo_alloc(struct nouveau_cli *, u64 *size, int *align,
> > diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
> > index b8025507a9e4..0cde16211e40 100644
> > --- a/drivers/gpu/drm/nouveau/nouveau_drv.h
> > +++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
> > @@ -153,7 +153,7 @@ struct nouveau_drm {
> >
> > /* TTM interface support */
> > struct {
> > - struct ttm_bo_device bdev;
> > + struct ttm_device bdev;
> > atomic_t validate_sequence;
> > int (*move)(struct nouveau_channel *,
> > struct ttm_buffer_object *,
> > diff --git a/drivers/gpu/drm/nouveau/nouveau_sgdma.c b/drivers/gpu/drm/nouveau/nouveau_sgdma.c
> > index cd6fdebae795..0400bb43fac5 100644
> > --- a/drivers/gpu/drm/nouveau/nouveau_sgdma.c
> > +++ b/drivers/gpu/drm/nouveau/nouveau_sgdma.c
> > @@ -16,7 +16,7 @@ struct nouveau_sgdma_be {
> > };
> >
> > void
> > -nouveau_sgdma_destroy(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
> > +nouveau_sgdma_destroy(struct ttm_device *bdev, struct ttm_tt *ttm)
> > {
> > struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)ttm;
> >
> > @@ -29,7 +29,7 @@ nouveau_sgdma_destroy(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
> > }
> >
> > int
> > -nouveau_sgdma_bind(struct ttm_bo_device *bdev, struct ttm_tt *ttm, struct ttm_resource *reg)
> > +nouveau_sgdma_bind(struct ttm_device *bdev, struct ttm_tt *ttm, struct ttm_resource *reg)
> > {
> > struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)ttm;
> > struct nouveau_drm *drm = nouveau_bdev(bdev);
> > @@ -56,7 +56,7 @@ nouveau_sgdma_bind(struct ttm_bo_device *bdev, struct ttm_tt *ttm, struct ttm_re
> > }
> >
> > void
> > -nouveau_sgdma_unbind(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
> > +nouveau_sgdma_unbind(struct ttm_device *bdev, struct ttm_tt *ttm)
> > {
> > struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)ttm;
> > if (nvbe->mem) {
> > diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c
> > index edf3bb89a47f..2fb127da0208 100644
> > --- a/drivers/gpu/drm/nouveau/nouveau_ttm.c
> > +++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c
> > @@ -315,7 +315,7 @@ nouveau_ttm_init(struct nouveau_drm *drm)
> > drm->agp.cma = pci->agp.cma;
> > }
> >
> > - ret = ttm_bo_device_init(&drm->ttm.bdev,
> > + ret = ttm_device_init(&drm->ttm.bdev,
> > &nouveau_bo_driver,
> > dev->anon_inode->i_mapping,
> > dev->vma_offset_manager,
> > @@ -369,7 +369,7 @@ nouveau_ttm_fini(struct nouveau_drm *drm)
> > nouveau_ttm_fini_vram(drm);
> > nouveau_ttm_fini_gtt(drm);
> >
> > - ttm_bo_device_release(&drm->ttm.bdev);
> > + ttm_device_release(&drm->ttm.bdev);
> >
> > arch_phys_wc_del(drm->ttm.mtrr);
> > drm->ttm.mtrr = 0;
> > diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.h b/drivers/gpu/drm/nouveau/nouveau_ttm.h
> > index 69552049bb96..dbf6dc238efd 100644
> > --- a/drivers/gpu/drm/nouveau/nouveau_ttm.h
> > +++ b/drivers/gpu/drm/nouveau/nouveau_ttm.h
> > @@ -3,7 +3,7 @@
> > #define __NOUVEAU_TTM_H__
> >
> > static inline struct nouveau_drm *
> > -nouveau_bdev(struct ttm_bo_device *bd)
> > +nouveau_bdev(struct ttm_device *bd)
> > {
> > return container_of(bd, struct nouveau_drm, ttm.bdev);
> > }
> > @@ -22,7 +22,7 @@ int nouveau_ttm_mmap(struct file *, struct vm_area_struct *);
> > int nouveau_ttm_global_init(struct nouveau_drm *);
> > void nouveau_ttm_global_release(struct nouveau_drm *);
> >
> > -int nouveau_sgdma_bind(struct ttm_bo_device *bdev, struct ttm_tt *ttm, struct ttm_resource *reg);
> > -void nouveau_sgdma_unbind(struct ttm_bo_device *bdev, struct ttm_tt *ttm);
> > -void nouveau_sgdma_destroy(struct ttm_bo_device *bdev, struct ttm_tt *ttm);
> > +int nouveau_sgdma_bind(struct ttm_device *bdev, struct ttm_tt *ttm, struct ttm_resource *reg);
> > +void nouveau_sgdma_unbind(struct ttm_device *bdev, struct ttm_tt *ttm);
> > +void nouveau_sgdma_destroy(struct ttm_device *bdev, struct ttm_tt *ttm);
> > #endif
> > diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
> > index 3602e8b34189..78c0969e0403 100644
> > --- a/drivers/gpu/drm/qxl/qxl_drv.h
> > +++ b/drivers/gpu/drm/qxl/qxl_drv.h
> > @@ -123,7 +123,7 @@ struct qxl_output {
> > #define drm_encoder_to_qxl_output(x) container_of(x, struct qxl_output, enc)
> >
> > struct qxl_mman {
> > - struct ttm_bo_device bdev;
> > + struct ttm_device bdev;
> > };
> >
> > struct qxl_memslot {
> > @@ -348,7 +348,7 @@ int qxl_mode_dumb_mmap(struct drm_file *filp,
> > /* qxl ttm */
> > int qxl_ttm_init(struct qxl_device *qdev);
> > void qxl_ttm_fini(struct qxl_device *qdev);
> > -int qxl_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
> > +int qxl_ttm_io_mem_reserve(struct ttm_device *bdev,
> > struct ttm_resource *mem);
> >
> > /* qxl image */
> > diff --git a/drivers/gpu/drm/qxl/qxl_release.c b/drivers/gpu/drm/qxl/qxl_release.c
> > index e75e364655b8..9a90f4e33f08 100644
> > --- a/drivers/gpu/drm/qxl/qxl_release.c
> > +++ b/drivers/gpu/drm/qxl/qxl_release.c
> > @@ -429,7 +429,7 @@ void qxl_release_unmap(struct qxl_device *qdev,
> > void qxl_release_fence_buffer_objects(struct qxl_release *release)
> > {
> > struct ttm_buffer_object *bo;
> > - struct ttm_bo_device *bdev;
> > + struct ttm_device *bdev;
> > struct ttm_validate_buffer *entry;
> > struct qxl_device *qdev;
> >
> > @@ -450,7 +450,7 @@ void qxl_release_fence_buffer_objects(struct qxl_release *release)
> > release->id | 0xf0000000, release->base.seqno);
> > trace_dma_fence_emit(&release->base);
> >
> > - spin_lock(&ttm_bo_glob.lru_lock);
> > + spin_lock(&ttm_glob.lru_lock);
> >
> > list_for_each_entry(entry, &release->bos, head) {
> > bo = entry->bo;
> > @@ -459,7 +459,7 @@ void qxl_release_fence_buffer_objects(struct qxl_release *release)
> > ttm_bo_move_to_lru_tail(bo, NULL);
> > dma_resv_unlock(bo->base.resv);
> > }
> > - spin_unlock(&ttm_bo_glob.lru_lock);
> > + spin_unlock(&ttm_glob.lru_lock);
> > ww_acquire_fini(&release->ticket);
> > }
> >
> > diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
> > index d535e836be72..9b707af7dfd0 100644
> > --- a/drivers/gpu/drm/qxl/qxl_ttm.c
> > +++ b/drivers/gpu/drm/qxl/qxl_ttm.c
> > @@ -38,7 +38,7 @@
> > #include "qxl_drv.h"
> > #include "qxl_object.h"
> >
> > -static struct qxl_device *qxl_get_qdev(struct ttm_bo_device *bdev)
> > +static struct qxl_device *qxl_get_qdev(struct ttm_device *bdev)
> > {
> > struct qxl_mman *mman;
> > struct qxl_device *qdev;
> > @@ -71,7 +71,7 @@ static void qxl_evict_flags(struct ttm_buffer_object *bo,
> > *placement = qbo->placement;
> > }
> >
> > -int qxl_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
> > +int qxl_ttm_io_mem_reserve(struct ttm_device *bdev,
> > struct ttm_resource *mem)
> > {
> > struct qxl_device *qdev = qxl_get_qdev(bdev);
> > @@ -106,7 +106,7 @@ struct qxl_ttm_tt {
> > u64 offset;
> > };
> >
> > -static int qxl_ttm_backend_bind(struct ttm_bo_device *bdev,
> > +static int qxl_ttm_backend_bind(struct ttm_device *bdev,
> > struct ttm_tt *ttm,
> > struct ttm_resource *bo_mem)
> > {
> > @@ -121,13 +121,13 @@ static int qxl_ttm_backend_bind(struct ttm_bo_device *bdev,
> > return -1;
> > }
> >
> > -static void qxl_ttm_backend_unbind(struct ttm_bo_device *bdev,
> > +static void qxl_ttm_backend_unbind(struct ttm_device *bdev,
> > struct ttm_tt *ttm)
> > {
> > /* Not implemented */
> > }
> >
> > -static void qxl_ttm_backend_destroy(struct ttm_bo_device *bdev,
> > +static void qxl_ttm_backend_destroy(struct ttm_device *bdev,
> > struct ttm_tt *ttm)
> > {
> > struct qxl_ttm_tt *gtt = (void *)ttm;
> > @@ -189,7 +189,7 @@ static void qxl_bo_move_notify(struct ttm_buffer_object *bo,
> > qxl_surface_evict(qdev, qbo, new_mem ? true : false);
> > }
> >
> > -static struct ttm_bo_driver qxl_bo_driver = {
> > +static struct ttm_device_funcs qxl_bo_driver = {
> > .ttm_tt_create = &qxl_ttm_tt_create,
> > .ttm_tt_bind = &qxl_ttm_backend_bind,
> > .ttm_tt_destroy = &qxl_ttm_backend_destroy,
> > @@ -214,7 +214,7 @@ int qxl_ttm_init(struct qxl_device *qdev)
> > int num_io_pages; /* != rom->num_io_pages, we include surface0 */
> >
> > /* No others user of address space so set it to 0 */
> > - r = ttm_bo_device_init(&qdev->mman.bdev,
> > + r = ttm_device_init(&qdev->mman.bdev,
> > &qxl_bo_driver,
> > qdev->ddev.anon_inode->i_mapping,
> > qdev->ddev.vma_offset_manager,
> > @@ -249,7 +249,7 @@ void qxl_ttm_fini(struct qxl_device *qdev)
> > {
> > ttm_range_man_fini(&qdev->mman.bdev, TTM_PL_VRAM);
> > ttm_range_man_fini(&qdev->mman.bdev, TTM_PL_PRIV);
> > - ttm_bo_device_release(&qdev->mman.bdev);
> > + ttm_device_release(&qdev->mman.bdev);
> > DRM_INFO("qxl: ttm finalized\n");
> > }
> >
> > diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
> > index 5d54bccebd4d..775576470e78 100644
> > --- a/drivers/gpu/drm/radeon/radeon.h
> > +++ b/drivers/gpu/drm/radeon/radeon.h
> > @@ -452,7 +452,7 @@ struct radeon_surface_reg {
> > * TTM.
> > */
> > struct radeon_mman {
> > - struct ttm_bo_device bdev;
> > + struct ttm_device bdev;
> > bool initialized;
> >
> > #if defined(CONFIG_DEBUG_FS)
> > @@ -2819,7 +2819,7 @@ extern int radeon_ttm_tt_set_userptr(struct radeon_device *rdev,
> > uint32_t flags);
> > extern bool radeon_ttm_tt_has_userptr(struct radeon_device *rdev, struct ttm_tt *ttm);
> > extern bool radeon_ttm_tt_is_readonly(struct radeon_device *rdev, struct ttm_tt *ttm);
> > -bool radeon_ttm_tt_is_bound(struct ttm_bo_device *bdev, struct ttm_tt *ttm);
> > +bool radeon_ttm_tt_is_bound(struct ttm_device *bdev, struct ttm_tt *ttm);
> > extern void radeon_vram_location(struct radeon_device *rdev, struct radeon_mc *mc, u64 base);
> > extern void radeon_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc);
> > extern int radeon_resume_kms(struct drm_device *dev, bool resume, bool fbcon);
> > @@ -2829,7 +2829,7 @@ extern void radeon_ttm_set_active_vram_size(struct radeon_device *rdev, u64 size
> > extern void radeon_program_register_sequence(struct radeon_device *rdev,
> > const u32 *registers,
> > const u32 array_size);
> > -struct radeon_device *radeon_get_rdev(struct ttm_bo_device *bdev);
> > +struct radeon_device *radeon_get_rdev(struct ttm_device *bdev);
> >
> > /*
> > * vm
> > diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
> > index d6f42fbc81f4..3835c9457c06 100644
> > --- a/drivers/gpu/drm/radeon/radeon_ttm.c
> > +++ b/drivers/gpu/drm/radeon/radeon_ttm.c
> > @@ -56,11 +56,11 @@
> > static int radeon_ttm_debugfs_init(struct radeon_device *rdev);
> > static void radeon_ttm_debugfs_fini(struct radeon_device *rdev);
> >
> > -static int radeon_ttm_tt_bind(struct ttm_bo_device *bdev,
> > +static int radeon_ttm_tt_bind(struct ttm_device *bdev,
> > struct ttm_tt *ttm,
> > struct ttm_resource *bo_mem);
> >
> > -struct radeon_device *radeon_get_rdev(struct ttm_bo_device *bdev)
> > +struct radeon_device *radeon_get_rdev(struct ttm_device *bdev)
> > {
> > struct radeon_mman *mman;
> > struct radeon_device *rdev;
> > @@ -351,7 +351,7 @@ static int radeon_bo_move(struct ttm_buffer_object *bo, bool evict,
> > return 0;
> > }
> >
> > -static int radeon_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_resource *mem)
> > +static int radeon_ttm_io_mem_reserve(struct ttm_device *bdev, struct ttm_resource *mem)
> > {
> > struct radeon_device *rdev = radeon_get_rdev(bdev);
> > size_t bus_size = (size_t)mem->num_pages << PAGE_SHIFT;
> > @@ -418,7 +418,7 @@ struct radeon_ttm_tt {
> > };
> >
> > /* prepare the sg table with the user pages */
> > -static int radeon_ttm_tt_pin_userptr(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
> > +static int radeon_ttm_tt_pin_userptr(struct ttm_device *bdev, struct ttm_tt *ttm)
> > {
> > struct radeon_device *rdev = radeon_get_rdev(bdev);
> > struct radeon_ttm_tt *gtt = (void *)ttm;
> > @@ -479,7 +479,7 @@ static int radeon_ttm_tt_pin_userptr(struct ttm_bo_device *bdev, struct ttm_tt *
> > return r;
> > }
> >
> > -static void radeon_ttm_tt_unpin_userptr(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
> > +static void radeon_ttm_tt_unpin_userptr(struct ttm_device *bdev, struct ttm_tt *ttm)
> > {
> > struct radeon_device *rdev = radeon_get_rdev(bdev);
> > struct radeon_ttm_tt *gtt = (void *)ttm;
> > @@ -515,7 +515,7 @@ static bool radeon_ttm_backend_is_bound(struct ttm_tt *ttm)
> > return (gtt->bound);
> > }
> >
> > -static int radeon_ttm_backend_bind(struct ttm_bo_device *bdev,
> > +static int radeon_ttm_backend_bind(struct ttm_device *bdev,
> > struct ttm_tt *ttm,
> > struct ttm_resource *bo_mem)
> > {
> > @@ -551,7 +551,7 @@ static int radeon_ttm_backend_bind(struct ttm_bo_device *bdev,
> > return 0;
> > }
> >
> > -static void radeon_ttm_backend_unbind(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
> > +static void radeon_ttm_backend_unbind(struct ttm_device *bdev, struct ttm_tt *ttm)
> > {
> > struct radeon_ttm_tt *gtt = (void *)ttm;
> > struct radeon_device *rdev = radeon_get_rdev(bdev);
> > @@ -566,7 +566,7 @@ static void radeon_ttm_backend_unbind(struct ttm_bo_device *bdev, struct ttm_tt
> > gtt->bound = false;
> > }
> >
> > -static void radeon_ttm_backend_destroy(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
> > +static void radeon_ttm_backend_destroy(struct ttm_device *bdev, struct ttm_tt *ttm)
> > {
> > struct radeon_ttm_tt *gtt = (void *)ttm;
> >
> > @@ -627,7 +627,7 @@ static struct radeon_ttm_tt *radeon_ttm_tt_to_gtt(struct radeon_device *rdev,
> > return container_of(ttm, struct radeon_ttm_tt, ttm.ttm);
> > }
> >
> > -static int radeon_ttm_tt_populate(struct ttm_bo_device *bdev,
> > +static int radeon_ttm_tt_populate(struct ttm_device *bdev,
> > struct ttm_tt *ttm,
> > struct ttm_operation_ctx *ctx)
> > {
> > @@ -667,7 +667,7 @@ static int radeon_ttm_tt_populate(struct ttm_bo_device *bdev,
> > return ttm_populate_and_map_pages(rdev->dev, >t->ttm, ctx);
> > }
> >
> > -static void radeon_ttm_tt_unpopulate(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
> > +static void radeon_ttm_tt_unpopulate(struct ttm_device *bdev, struct ttm_tt *ttm)
> > {
> > struct radeon_device *rdev = radeon_get_rdev(bdev);
> > struct radeon_ttm_tt *gtt = radeon_ttm_tt_to_gtt(rdev, ttm);
> > @@ -714,7 +714,7 @@ int radeon_ttm_tt_set_userptr(struct radeon_device *rdev,
> > return 0;
> > }
> >
> > -bool radeon_ttm_tt_is_bound(struct ttm_bo_device *bdev,
> > +bool radeon_ttm_tt_is_bound(struct ttm_device *bdev,
> > struct ttm_tt *ttm)
> > {
> > #if IS_ENABLED(CONFIG_AGP)
> > @@ -725,7 +725,7 @@ bool radeon_ttm_tt_is_bound(struct ttm_bo_device *bdev,
> > return radeon_ttm_backend_is_bound(ttm);
> > }
> >
> > -static int radeon_ttm_tt_bind(struct ttm_bo_device *bdev,
> > +static int radeon_ttm_tt_bind(struct ttm_device *bdev,
> > struct ttm_tt *ttm,
> > struct ttm_resource *bo_mem)
> > {
> > @@ -743,7 +743,7 @@ static int radeon_ttm_tt_bind(struct ttm_bo_device *bdev,
> > return radeon_ttm_backend_bind(bdev, ttm, bo_mem);
> > }
> >
> > -static void radeon_ttm_tt_unbind(struct ttm_bo_device *bdev,
> > +static void radeon_ttm_tt_unbind(struct ttm_device *bdev,
> > struct ttm_tt *ttm)
> > {
> > #if IS_ENABLED(CONFIG_AGP)
> > @@ -757,7 +757,7 @@ static void radeon_ttm_tt_unbind(struct ttm_bo_device *bdev,
> > radeon_ttm_backend_unbind(bdev, ttm);
> > }
> >
> > -static void radeon_ttm_tt_destroy(struct ttm_bo_device *bdev,
> > +static void radeon_ttm_tt_destroy(struct ttm_device *bdev,
> > struct ttm_tt *ttm)
> > {
> > #if IS_ENABLED(CONFIG_AGP)
> > @@ -795,7 +795,7 @@ bool radeon_ttm_tt_is_readonly(struct radeon_device *rdev,
> > return !!(gtt->userflags & RADEON_GEM_USERPTR_READONLY);
> > }
> >
> > -static struct ttm_bo_driver radeon_bo_driver = {
> > +static struct ttm_device_funcs radeon_bo_driver = {
> > .ttm_tt_create = &radeon_ttm_tt_create,
> > .ttm_tt_populate = &radeon_ttm_tt_populate,
> > .ttm_tt_unpopulate = &radeon_ttm_tt_unpopulate,
> > @@ -815,7 +815,7 @@ int radeon_ttm_init(struct radeon_device *rdev)
> > int r;
> >
> > /* No others user of address space so set it to 0 */
> > - r = ttm_bo_device_init(&rdev->mman.bdev,
> > + r = ttm_device_init(&rdev->mman.bdev,
> > &radeon_bo_driver,
> > rdev->ddev->anon_inode->i_mapping,
> > rdev->ddev->vma_offset_manager,
> > @@ -885,7 +885,7 @@ void radeon_ttm_fini(struct radeon_device *rdev)
> > }
> > ttm_range_man_fini(&rdev->mman.bdev, TTM_PL_VRAM);
> > ttm_range_man_fini(&rdev->mman.bdev, TTM_PL_TT);
> > - ttm_bo_device_release(&rdev->mman.bdev);
> > + ttm_device_release(&rdev->mman.bdev);
> > radeon_gart_fini(rdev);
> > rdev->mman.initialized = false;
> > DRM_INFO("radeon: ttm finalized\n");
> > diff --git a/drivers/gpu/drm/ttm/Makefile b/drivers/gpu/drm/ttm/Makefile
> > index 90c0da88cc98..7a474e88d47e 100644
> > --- a/drivers/gpu/drm/ttm/Makefile
> > +++ b/drivers/gpu/drm/ttm/Makefile
> > @@ -5,7 +5,7 @@
> > ttm-y := ttm_memory.o ttm_tt.o ttm_bo.o \
> > ttm_bo_util.o ttm_bo_vm.o ttm_module.o \
> > ttm_execbuf_util.o ttm_page_alloc.o ttm_range_manager.o \
> > - ttm_resource.o
> > + ttm_resource.o ttm_device.o
> > ttm-$(CONFIG_AGP) += ttm_agp_backend.o
> > ttm-$(CONFIG_DRM_TTM_DMA_PAGE_POOL) += ttm_page_alloc_dma.o
> >
> > diff --git a/drivers/gpu/drm/ttm/ttm_agp_backend.c b/drivers/gpu/drm/ttm/ttm_agp_backend.c
> > index 4f76c9287159..b382d91414a1 100644
> > --- a/drivers/gpu/drm/ttm/ttm_agp_backend.c
> > +++ b/drivers/gpu/drm/ttm/ttm_agp_backend.c
> > @@ -51,7 +51,7 @@ struct ttm_agp_backend {
> > int ttm_agp_bind(struct ttm_tt *ttm, struct ttm_resource *bo_mem)
> > {
> > struct ttm_agp_backend *agp_be = container_of(ttm, struct ttm_agp_backend, ttm);
> > - struct page *dummy_read_page = ttm_bo_glob.dummy_read_page;
> > + struct page *dummy_read_page = ttm_glob.dummy_read_page;
> > struct drm_mm_node *node = bo_mem->mm_node;
> > struct agp_memory *mem;
> > int ret, cached = ttm->caching == ttm_cached;
> > diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
> > index 2fe4cbefde28..40d1ac91c9bf 100644
> > --- a/drivers/gpu/drm/ttm/ttm_bo.c
> > +++ b/drivers/gpu/drm/ttm/ttm_bo.c
> > @@ -43,21 +43,6 @@
> > #include <linux/atomic.h>
> > #include <linux/dma-resv.h>
> >
> > -static void ttm_bo_global_kobj_release(struct kobject *kobj);
> > -
> > -/**
> > - * ttm_global_mutex - protecting the global BO state
> > - */
> > -DEFINE_MUTEX(ttm_global_mutex);
> > -unsigned ttm_bo_glob_use_count;
> > -struct ttm_bo_global ttm_bo_glob;
> > -EXPORT_SYMBOL(ttm_bo_glob);
> > -
> > -static struct attribute ttm_bo_count = {
> > - .name = "bo_count",
> > - .mode = S_IRUGO
> > -};
> > -
> > /* default destructor */
> > static void ttm_bo_default_destroy(struct ttm_buffer_object *bo)
> > {
> > @@ -83,36 +68,10 @@ static void ttm_bo_mem_space_debug(struct ttm_buffer_object *bo,
> > }
> > }
> >
> > -static ssize_t ttm_bo_global_show(struct kobject *kobj,
> > - struct attribute *attr,
> > - char *buffer)
> > -{
> > - struct ttm_bo_global *glob =
> > - container_of(kobj, struct ttm_bo_global, kobj);
> > -
> > - return snprintf(buffer, PAGE_SIZE, "%d\n",
> > - atomic_read(&glob->bo_count));
> > -}
> > -
> > -static struct attribute *ttm_bo_global_attrs[] = {
> > - &ttm_bo_count,
> > - NULL
> > -};
> > -
> > -static const struct sysfs_ops ttm_bo_global_ops = {
> > - .show = &ttm_bo_global_show
> > -};
> > -
> > -static struct kobj_type ttm_bo_glob_kobj_type = {
> > - .release = &ttm_bo_global_kobj_release,
> > - .sysfs_ops = &ttm_bo_global_ops,
> > - .default_attrs = ttm_bo_global_attrs
> > -};
> > -
> > static void ttm_bo_add_mem_to_lru(struct ttm_buffer_object *bo,
> > struct ttm_resource *mem)
> > {
> > - struct ttm_bo_device *bdev = bo->bdev;
> > + struct ttm_device *bdev = bo->bdev;
> > struct ttm_resource_manager *man;
> >
> > if (!list_empty(&bo->lru) || bo->pin_count)
> > @@ -124,13 +83,13 @@ static void ttm_bo_add_mem_to_lru(struct ttm_buffer_object *bo,
> > if (man->use_tt && bo->ttm &&
> > !(bo->ttm->page_flags & (TTM_PAGE_FLAG_SG |
> > TTM_PAGE_FLAG_SWAPPED))) {
> > - list_add_tail(&bo->swap, &ttm_bo_glob.swap_lru[bo->priority]);
> > + list_add_tail(&bo->swap, &ttm_glob.swap_lru[bo->priority]);
> > }
> > }
> >
> > static void ttm_bo_del_from_lru(struct ttm_buffer_object *bo)
> > {
> > - struct ttm_bo_device *bdev = bo->bdev;
> > + struct ttm_device *bdev = bo->bdev;
> > bool notify = false;
> >
> > if (!list_empty(&bo->swap)) {
> > @@ -142,8 +101,8 @@ static void ttm_bo_del_from_lru(struct ttm_buffer_object *bo)
> > notify = true;
> > }
> >
> > - if (notify && bdev->driver->del_from_lru_notify)
> > - bdev->driver->del_from_lru_notify(bo);
> > + if (notify && bdev->funcs->del_from_lru_notify)
> > + bdev->funcs->del_from_lru_notify(bo);
> > }
> >
> > static void ttm_bo_bulk_move_set_pos(struct ttm_lru_bulk_move_pos *pos,
> > @@ -223,7 +182,7 @@ void ttm_bo_bulk_move_lru_tail(struct ttm_lru_bulk_move *bulk)
> > dma_resv_assert_held(pos->first->base.resv);
> > dma_resv_assert_held(pos->last->base.resv);
> >
> > - lru = &ttm_bo_glob.swap_lru[i];
> > + lru = &ttm_glob.swap_lru[i];
> > list_bulk_move_tail(lru, &pos->first->swap, &pos->last->swap);
> > }
> > }
> > @@ -233,7 +192,7 @@ static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo,
> > struct ttm_resource *mem, bool evict,
> > struct ttm_operation_ctx *ctx)
> > {
> > - struct ttm_bo_device *bdev = bo->bdev;
> > + struct ttm_device *bdev = bo->bdev;
> > struct ttm_resource_manager *old_man = ttm_manager_type(bdev, bo->mem.mem_type);
> > struct ttm_resource_manager *new_man = ttm_manager_type(bdev, mem->mem_type);
> > int ret;
> > @@ -263,8 +222,8 @@ static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo,
> > }
> > }
> >
> > - if (bdev->driver->move_notify)
> > - bdev->driver->move_notify(bo, evict, mem);
> > + if (bdev->funcs->move_notify)
> > + bdev->funcs->move_notify(bo, evict, mem);
> >
> > if (old_man->use_tt && new_man->use_tt) {
> > if (bo->mem.mem_type == TTM_PL_SYSTEM) {
> > @@ -272,16 +231,16 @@ static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo,
> > ret = 0;
> > } else
> > ret = ttm_bo_move_ttm(bo, ctx, mem);
> > - } else if (bdev->driver->move) {
> > - ret = bdev->driver->move(bo, evict, ctx, mem);
> > + } else if (bdev->funcs->move) {
> > + ret = bdev->funcs->move(bo, evict, ctx, mem);
> > } else {
> > ret = ttm_bo_move_memcpy(bo, ctx, mem);
> > }
> >
> > if (ret) {
> > - if (bdev->driver->move_notify) {
> > + if (bdev->funcs->move_notify) {
> > swap(*mem, bo->mem);
> > - bdev->driver->move_notify(bo, false, mem);
> > + bdev->funcs->move_notify(bo, false, mem);
> > swap(*mem, bo->mem);
> > }
> >
> > @@ -309,8 +268,8 @@ static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo,
> >
> > static void ttm_bo_cleanup_memtype_use(struct ttm_buffer_object *bo)
> > {
> > - if (bo->bdev->driver->move_notify)
> > - bo->bdev->driver->move_notify(bo, false, NULL);
> > + if (bo->bdev->funcs->move_notify)
> > + bo->bdev->funcs->move_notify(bo, false, NULL);
> >
> > ttm_bo_tt_destroy(bo);
> > ttm_resource_free(bo, &bo->mem);
> > @@ -335,9 +294,9 @@ static int ttm_bo_individualize_resv(struct ttm_buffer_object *bo)
> > * reference it any more. The only tricky case is the trylock on
> > * the resv object while holding the lru_lock.
> > */
> > - spin_lock(&ttm_bo_glob.lru_lock);
> > + spin_lock(&ttm_glob.lru_lock);
> > bo->base.resv = &bo->base._resv;
> > - spin_unlock(&ttm_bo_glob.lru_lock);
> > + spin_unlock(&ttm_glob.lru_lock);
> > }
> >
> > return r;
> > @@ -395,7 +354,7 @@ static int ttm_bo_cleanup_refs(struct ttm_buffer_object *bo,
> >
> > if (unlock_resv)
> > dma_resv_unlock(bo->base.resv);
> > - spin_unlock(&ttm_bo_glob.lru_lock);
> > + spin_unlock(&ttm_glob.lru_lock);
> >
> > lret = dma_resv_wait_timeout_rcu(resv, true, interruptible,
> > 30 * HZ);
> > @@ -405,7 +364,7 @@ static int ttm_bo_cleanup_refs(struct ttm_buffer_object *bo,
> > else if (lret == 0)
> > return -EBUSY;
> >
> > - spin_lock(&ttm_bo_glob.lru_lock);
> > + spin_lock(&ttm_glob.lru_lock);
> > if (unlock_resv && !dma_resv_trylock(bo->base.resv)) {
> > /*
> > * We raced, and lost, someone else holds the reservation now,
> > @@ -415,7 +374,7 @@ static int ttm_bo_cleanup_refs(struct ttm_buffer_object *bo,
> > * delayed destruction would succeed, so just return success
> > * here.
> > */
> > - spin_unlock(&ttm_bo_glob.lru_lock);
> > + spin_unlock(&ttm_glob.lru_lock);
> > return 0;
> > }
> > ret = 0;
> > @@ -424,13 +383,13 @@ static int ttm_bo_cleanup_refs(struct ttm_buffer_object *bo,
> > if (ret || unlikely(list_empty(&bo->ddestroy))) {
> > if (unlock_resv)
> > dma_resv_unlock(bo->base.resv);
> > - spin_unlock(&ttm_bo_glob.lru_lock);
> > + spin_unlock(&ttm_glob.lru_lock);
> > return ret;
> > }
> >
> > ttm_bo_del_from_lru(bo);
> > list_del_init(&bo->ddestroy);
> > - spin_unlock(&ttm_bo_glob.lru_lock);
> > + spin_unlock(&ttm_glob.lru_lock);
> > ttm_bo_cleanup_memtype_use(bo);
> >
> > if (unlock_resv)
> > @@ -445,9 +404,9 @@ static int ttm_bo_cleanup_refs(struct ttm_buffer_object *bo,
> > * Traverse the delayed list, and call ttm_bo_cleanup_refs on all
> > * encountered buffers.
> > */
> > -static bool ttm_bo_delayed_delete(struct ttm_bo_device *bdev, bool remove_all)
> > +bool ttm_bo_delayed_delete(struct ttm_device *bdev, bool remove_all)
> > {
> > - struct ttm_bo_global *glob = &ttm_bo_glob;
> > + struct ttm_global *glob = &ttm_glob;
> > struct list_head removed;
> > bool empty;
> >
> > @@ -486,21 +445,11 @@ static bool ttm_bo_delayed_delete(struct ttm_bo_device *bdev, bool remove_all)
> > return empty;
> > }
> >
> > -static void ttm_bo_delayed_workqueue(struct work_struct *work)
> > -{
> > - struct ttm_bo_device *bdev =
> > - container_of(work, struct ttm_bo_device, wq.work);
> > -
> > - if (!ttm_bo_delayed_delete(bdev, false))
> > - schedule_delayed_work(&bdev->wq,
> > - ((HZ / 100) < 1) ? 1 : HZ / 100);
> > -}
> > -
> > static void ttm_bo_release(struct kref *kref)
> > {
> > struct ttm_buffer_object *bo =
> > container_of(kref, struct ttm_buffer_object, kref);
> > - struct ttm_bo_device *bdev = bo->bdev;
> > + struct ttm_device *bdev = bo->bdev;
> > size_t acc_size = bo->acc_size;
> > int ret;
> >
> > @@ -514,8 +463,8 @@ static void ttm_bo_release(struct kref *kref)
> > 30 * HZ);
> > }
> >
> > - if (bo->bdev->driver->release_notify)
> > - bo->bdev->driver->release_notify(bo);
> > + if (bo->bdev->funcs->release_notify)
> > + bo->bdev->funcs->release_notify(bo);
> >
> > drm_vma_offset_remove(bdev->vma_manager, &bo->base.vma_node);
> > ttm_mem_io_free(bdev, &bo->mem);
> > @@ -527,7 +476,7 @@ static void ttm_bo_release(struct kref *kref)
> > ttm_bo_flush_all_fences(bo);
> > bo->deleted = true;
> >
> > - spin_lock(&ttm_bo_glob.lru_lock);
> > + spin_lock(&ttm_glob.lru_lock);
> >
> > /*
> > * Make pinned bos immediately available to
> > @@ -542,22 +491,22 @@ static void ttm_bo_release(struct kref *kref)
> >
> > kref_init(&bo->kref);
> > list_add_tail(&bo->ddestroy, &bdev->ddestroy);
> > - spin_unlock(&ttm_bo_glob.lru_lock);
> > + spin_unlock(&ttm_glob.lru_lock);
> >
> > schedule_delayed_work(&bdev->wq,
> > ((HZ / 100) < 1) ? 1 : HZ / 100);
> > return;
> > }
> >
> > - spin_lock(&ttm_bo_glob.lru_lock);
> > + spin_lock(&ttm_glob.lru_lock);
> > ttm_bo_del_from_lru(bo);
> > list_del(&bo->ddestroy);
> > - spin_unlock(&ttm_bo_glob.lru_lock);
> > + spin_unlock(&ttm_glob.lru_lock);
> >
> > ttm_bo_cleanup_memtype_use(bo);
> > dma_resv_unlock(bo->base.resv);
> >
> > - atomic_dec(&ttm_bo_glob.bo_count);
> > + atomic_dec(&ttm_glob.bo_count);
> > dma_fence_put(bo->moving);
> > if (!ttm_bo_uses_embedded_gem_object(bo))
> > dma_resv_fini(&bo->base._resv);
> > @@ -571,13 +520,13 @@ void ttm_bo_put(struct ttm_buffer_object *bo)
> > }
> > EXPORT_SYMBOL(ttm_bo_put);
> >
> > -int ttm_bo_lock_delayed_workqueue(struct ttm_bo_device *bdev)
> > +int ttm_bo_lock_delayed_workqueue(struct ttm_device *bdev)
> > {
> > return cancel_delayed_work_sync(&bdev->wq);
> > }
> > EXPORT_SYMBOL(ttm_bo_lock_delayed_workqueue);
> >
> > -void ttm_bo_unlock_delayed_workqueue(struct ttm_bo_device *bdev, int resched)
> > +void ttm_bo_unlock_delayed_workqueue(struct ttm_device *bdev, int resched)
> > {
> > if (resched)
> > schedule_delayed_work(&bdev->wq,
> > @@ -588,7 +537,7 @@ EXPORT_SYMBOL(ttm_bo_unlock_delayed_workqueue);
> > static int ttm_bo_evict(struct ttm_buffer_object *bo,
> > struct ttm_operation_ctx *ctx)
> > {
> > - struct ttm_bo_device *bdev = bo->bdev;
> > + struct ttm_device *bdev = bo->bdev;
> > struct ttm_resource evict_mem;
> > struct ttm_placement placement;
> > int ret = 0;
> > @@ -597,7 +546,7 @@ static int ttm_bo_evict(struct ttm_buffer_object *bo,
> >
> > placement.num_placement = 0;
> > placement.num_busy_placement = 0;
> > - bdev->driver->evict_flags(bo, &placement);
> > + bdev->funcs->evict_flags(bo, &placement);
> >
> > if (!placement.num_placement && !placement.num_busy_placement) {
> > ttm_bo_wait(bo, false, false);
> > @@ -712,7 +661,7 @@ static int ttm_mem_evict_wait_busy(struct ttm_buffer_object *busy_bo,
> > return r == -EDEADLK ? -EBUSY : r;
> > }
> >
> > -int ttm_mem_evict_first(struct ttm_bo_device *bdev,
> > +int ttm_mem_evict_first(struct ttm_device *bdev,
> > struct ttm_resource_manager *man,
> > const struct ttm_place *place,
> > struct ttm_operation_ctx *ctx,
> > @@ -723,7 +672,7 @@ int ttm_mem_evict_first(struct ttm_bo_device *bdev,
> > unsigned i;
> > int ret;
> >
> > - spin_lock(&ttm_bo_glob.lru_lock);
> > + spin_lock(&ttm_glob.lru_lock);
> > for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i) {
> > list_for_each_entry(bo, &man->lru[i], lru) {
> > bool busy;
> > @@ -736,7 +685,7 @@ int ttm_mem_evict_first(struct ttm_bo_device *bdev,
> > continue;
> > }
> >
> > - if (place && !bdev->driver->eviction_valuable(bo,
> > + if (place && !bdev->funcs->eviction_valuable(bo,
> > place)) {
> > if (locked)
> > dma_resv_unlock(bo->base.resv);
> > @@ -760,7 +709,7 @@ int ttm_mem_evict_first(struct ttm_bo_device *bdev,
> > if (!bo) {
> > if (busy_bo && !ttm_bo_get_unless_zero(busy_bo))
> > busy_bo = NULL;
> > - spin_unlock(&ttm_bo_glob.lru_lock);
> > + spin_unlock(&ttm_glob.lru_lock);
> > ret = ttm_mem_evict_wait_busy(busy_bo, ctx, ticket);
> > if (busy_bo)
> > ttm_bo_put(busy_bo);
> > @@ -774,7 +723,7 @@ int ttm_mem_evict_first(struct ttm_bo_device *bdev,
> > return ret;
> > }
> >
> > - spin_unlock(&ttm_bo_glob.lru_lock);
> > + spin_unlock(&ttm_glob.lru_lock);
> >
> > ret = ttm_bo_evict(bo, ctx);
> > if (locked)
> > @@ -829,7 +778,7 @@ static int ttm_bo_mem_force_space(struct ttm_buffer_object *bo,
> > struct ttm_resource *mem,
> > struct ttm_operation_ctx *ctx)
> > {
> > - struct ttm_bo_device *bdev = bo->bdev;
> > + struct ttm_device *bdev = bo->bdev;
> > struct ttm_resource_manager *man = ttm_manager_type(bdev, mem->mem_type);
> > struct ww_acquire_ctx *ticket;
> > int ret;
> > @@ -866,7 +815,7 @@ static int ttm_bo_mem_placement(struct ttm_buffer_object *bo,
> > struct ttm_resource *mem,
> > struct ttm_operation_ctx *ctx)
> > {
> > - struct ttm_bo_device *bdev = bo->bdev;
> > + struct ttm_device *bdev = bo->bdev;
> > struct ttm_resource_manager *man;
> >
> > man = ttm_manager_type(bdev, place->mem_type);
> > @@ -876,10 +825,10 @@ static int ttm_bo_mem_placement(struct ttm_buffer_object *bo,
> > mem->mem_type = place->mem_type;
> > mem->placement = place->flags;
> >
> > - spin_lock(&ttm_bo_glob.lru_lock);
> > + spin_lock(&ttm_glob.lru_lock);
> > ttm_bo_del_from_lru(bo);
> > ttm_bo_add_mem_to_lru(bo, mem);
> > - spin_unlock(&ttm_bo_glob.lru_lock);
> > + spin_unlock(&ttm_glob.lru_lock);
> >
> > return 0;
> > }
> > @@ -897,7 +846,7 @@ int ttm_bo_mem_space(struct ttm_buffer_object *bo,
> > struct ttm_resource *mem,
> > struct ttm_operation_ctx *ctx)
> > {
> > - struct ttm_bo_device *bdev = bo->bdev;
> > + struct ttm_device *bdev = bo->bdev;
> > bool type_found = false;
> > int i, ret;
> >
> > @@ -1074,7 +1023,7 @@ int ttm_bo_validate(struct ttm_buffer_object *bo,
> > }
> > EXPORT_SYMBOL(ttm_bo_validate);
> >
> > -int ttm_bo_init_reserved(struct ttm_bo_device *bdev,
> > +int ttm_bo_init_reserved(struct ttm_device *bdev,
> > struct ttm_buffer_object *bo,
> > unsigned long size,
> > enum ttm_bo_type type,
> > @@ -1146,7 +1095,7 @@ int ttm_bo_init_reserved(struct ttm_bo_device *bdev,
> > dma_resv_init(&bo->base._resv);
> > drm_vma_node_reset(&bo->base.vma_node);
> > }
> > - atomic_inc(&ttm_bo_glob.bo_count);
> > + atomic_inc(&ttm_glob.bo_count);
> >
> > /*
> > * For ttm_bo_type_device buffers, allocate
> > @@ -1182,7 +1131,7 @@ int ttm_bo_init_reserved(struct ttm_bo_device *bdev,
> > }
> > EXPORT_SYMBOL(ttm_bo_init_reserved);
> >
> > -int ttm_bo_init(struct ttm_bo_device *bdev,
> > +int ttm_bo_init(struct ttm_device *bdev,
> > struct ttm_buffer_object *bo,
> > unsigned long size,
> > enum ttm_bo_type type,
> > @@ -1210,7 +1159,7 @@ int ttm_bo_init(struct ttm_bo_device *bdev,
> > }
> > EXPORT_SYMBOL(ttm_bo_init);
> >
> > -size_t ttm_bo_dma_acc_size(struct ttm_bo_device *bdev,
> > +size_t ttm_bo_dma_acc_size(struct ttm_device *bdev,
> > unsigned long bo_size,
> > unsigned struct_size)
> > {
> > @@ -1224,7 +1173,7 @@ size_t ttm_bo_dma_acc_size(struct ttm_bo_device *bdev,
> > }
> > EXPORT_SYMBOL(ttm_bo_dma_acc_size);
> >
> > -int ttm_bo_evict_mm(struct ttm_bo_device *bdev, unsigned mem_type)
> > +int ttm_bo_evict_mm(struct ttm_device *bdev, unsigned mem_type)
> > {
> > struct ttm_resource_manager *man = ttm_manager_type(bdev, mem_type);
> >
> > @@ -1242,154 +1191,13 @@ int ttm_bo_evict_mm(struct ttm_bo_device *bdev, unsigned mem_type)
> > }
> > EXPORT_SYMBOL(ttm_bo_evict_mm);
> >
> > -static void ttm_bo_global_kobj_release(struct kobject *kobj)
> > -{
> > - struct ttm_bo_global *glob =
> > - container_of(kobj, struct ttm_bo_global, kobj);
> > -
> > - __free_page(glob->dummy_read_page);
> > -}
> > -
> > -static void ttm_bo_global_release(void)
> > -{
> > - struct ttm_bo_global *glob = &ttm_bo_glob;
> > -
> > - mutex_lock(&ttm_global_mutex);
> > - if (--ttm_bo_glob_use_count > 0)
> > - goto out;
> > -
> > - kobject_del(&glob->kobj);
> > - kobject_put(&glob->kobj);
> > - ttm_mem_global_release(&ttm_mem_glob);
> > - memset(glob, 0, sizeof(*glob));
> > -out:
> > - mutex_unlock(&ttm_global_mutex);
> > -}
> > -
> > -static int ttm_bo_global_init(void)
> > -{
> > - struct ttm_bo_global *glob = &ttm_bo_glob;
> > - int ret = 0;
> > - unsigned i;
> > -
> > - mutex_lock(&ttm_global_mutex);
> > - if (++ttm_bo_glob_use_count > 1)
> > - goto out;
> > -
> > - ret = ttm_mem_global_init(&ttm_mem_glob);
> > - if (ret)
> > - goto out;
> > -
> > - spin_lock_init(&glob->lru_lock);
> > - glob->dummy_read_page = alloc_page(__GFP_ZERO | GFP_DMA32);
> > -
> > - if (unlikely(glob->dummy_read_page == NULL)) {
> > - ret = -ENOMEM;
> > - goto out;
> > - }
> > -
> > - for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i)
> > - INIT_LIST_HEAD(&glob->swap_lru[i]);
> > - INIT_LIST_HEAD(&glob->device_list);
> > - atomic_set(&glob->bo_count, 0);
> > -
> > - ret = kobject_init_and_add(
> > - &glob->kobj, &ttm_bo_glob_kobj_type, ttm_get_kobj(), "buffer_objects");
> > - if (unlikely(ret != 0))
> > - kobject_put(&glob->kobj);
> > -out:
> > - mutex_unlock(&ttm_global_mutex);
> > - return ret;
> > -}
> > -
> > -int ttm_bo_device_release(struct ttm_bo_device *bdev)
> > -{
> > - struct ttm_bo_global *glob = &ttm_bo_glob;
> > - int ret = 0;
> > - unsigned i;
> > - struct ttm_resource_manager *man;
> > -
> > - man = ttm_manager_type(bdev, TTM_PL_SYSTEM);
> > - ttm_resource_manager_set_used(man, false);
> > - ttm_set_driver_manager(bdev, TTM_PL_SYSTEM, NULL);
> > -
> > - mutex_lock(&ttm_global_mutex);
> > - list_del(&bdev->device_list);
> > - mutex_unlock(&ttm_global_mutex);
> > -
> > - cancel_delayed_work_sync(&bdev->wq);
> > -
> > - if (ttm_bo_delayed_delete(bdev, true))
> > - pr_debug("Delayed destroy list was clean\n");
> > -
> > - spin_lock(&glob->lru_lock);
> > - for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i)
> > - if (list_empty(&man->lru[0]))
> > - pr_debug("Swap list %d was clean\n", i);
> > - spin_unlock(&glob->lru_lock);
> > -
> > - if (!ret)
> > - ttm_bo_global_release();
> > -
> > - return ret;
> > -}
> > -EXPORT_SYMBOL(ttm_bo_device_release);
> > -
> > -static void ttm_bo_init_sysman(struct ttm_bo_device *bdev)
> > -{
> > - struct ttm_resource_manager *man = &bdev->sysman;
> > -
> > - /*
> > - * Initialize the system memory buffer type.
> > - * Other types need to be driver / IOCTL initialized.
> > - */
> > - man->use_tt = true;
> > -
> > - ttm_resource_manager_init(man, 0);
> > - ttm_set_driver_manager(bdev, TTM_PL_SYSTEM, man);
> > - ttm_resource_manager_set_used(man, true);
> > -}
> > -
> > -int ttm_bo_device_init(struct ttm_bo_device *bdev,
> > - struct ttm_bo_driver *driver,
> > - struct address_space *mapping,
> > - struct drm_vma_offset_manager *vma_manager,
> > - bool need_dma32)
> > -{
> > - struct ttm_bo_global *glob = &ttm_bo_glob;
> > - int ret;
> > -
> > - if (WARN_ON(vma_manager == NULL))
> > - return -EINVAL;
> > -
> > - ret = ttm_bo_global_init();
> > - if (ret)
> > - return ret;
> > -
> > - bdev->driver = driver;
> > -
> > - ttm_bo_init_sysman(bdev);
> > -
> > - bdev->vma_manager = vma_manager;
> > - INIT_DELAYED_WORK(&bdev->wq, ttm_bo_delayed_workqueue);
> > - INIT_LIST_HEAD(&bdev->ddestroy);
> > - bdev->dev_mapping = mapping;
> > - bdev->need_dma32 = need_dma32;
> > - mutex_lock(&ttm_global_mutex);
> > - list_add_tail(&bdev->device_list, &glob->device_list);
> > - mutex_unlock(&ttm_global_mutex);
> > -
> > - return 0;
> > -}
> > -EXPORT_SYMBOL(ttm_bo_device_init);
> > -
> > /*
> > * buffer object vm functions.
> > */
> >
> > void ttm_bo_unmap_virtual(struct ttm_buffer_object *bo)
> > {
> > - struct ttm_bo_device *bdev = bo->bdev;
> > + struct ttm_device *bdev = bo->bdev;
> >
> > drm_vma_node_unmap(&bo->base.vma_node, bdev->dev_mapping);
> > ttm_mem_io_free(bdev, &bo->mem);
> > @@ -1425,7 +1233,7 @@ EXPORT_SYMBOL(ttm_bo_wait);
> > * A buffer object shrink method that tries to swap out the first
> > * buffer object on the bo_global::swap_lru list.
> > */
> > -int ttm_bo_swapout(struct ttm_bo_global *glob, struct ttm_operation_ctx *ctx)
> > +int ttm_bo_swapout(struct ttm_global *glob, struct ttm_operation_ctx *ctx)
> > {
> > struct ttm_buffer_object *bo;
> > int ret = -EBUSY;
> > @@ -1499,8 +1307,8 @@ int ttm_bo_swapout(struct ttm_bo_global *glob, struct ttm_operation_ctx *ctx)
> > * anyone tries to access a ttm page.
> > */
> >
> > - if (bo->bdev->driver->swap_notify)
> > - bo->bdev->driver->swap_notify(bo);
> > + if (bo->bdev->funcs->swap_notify)
> > + bo->bdev->funcs->swap_notify(bo);
> >
> > ret = ttm_tt_swapout(bo->bdev, bo->ttm);
> > out:
> > @@ -1524,7 +1332,7 @@ void ttm_bo_swapout_all(void)
> > .no_wait_gpu = false
> > };
> >
> > - while (ttm_bo_swapout(&ttm_bo_glob, &ctx) == 0);
> > + while (ttm_bo_swapout(&ttm_glob, &ctx) == 0);
> > }
> > EXPORT_SYMBOL(ttm_bo_swapout_all);
> >
> > @@ -1539,10 +1347,10 @@ void ttm_bo_tt_destroy(struct ttm_buffer_object *bo)
> >
> > int ttm_bo_tt_bind(struct ttm_buffer_object *bo, struct ttm_resource *mem)
> > {
> > - return bo->bdev->driver->ttm_tt_bind(bo->bdev, bo->ttm, mem);
> > + return bo->bdev->funcs->ttm_tt_bind(bo->bdev, bo->ttm, mem);
> > }
> >
> > void ttm_bo_tt_unbind(struct ttm_buffer_object *bo)
> > {
> > - bo->bdev->driver->ttm_tt_unbind(bo->bdev, bo->ttm);
> > + bo->bdev->funcs->ttm_tt_unbind(bo->bdev, bo->ttm);
> > }
> > diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
> > index ba7ab5ed85d0..17903f0e211f 100644
> > --- a/drivers/gpu/drm/ttm/ttm_bo_util.c
> > +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
> > @@ -88,33 +88,33 @@ int ttm_bo_move_ttm(struct ttm_buffer_object *bo,
> > }
> > EXPORT_SYMBOL(ttm_bo_move_ttm);
> >
> > -int ttm_mem_io_reserve(struct ttm_bo_device *bdev,
> > +int ttm_mem_io_reserve(struct ttm_device *bdev,
> > struct ttm_resource *mem)
> > {
> > if (mem->bus.offset || mem->bus.addr)
> > return 0;
> >
> > mem->bus.is_iomem = false;
> > - if (!bdev->driver->io_mem_reserve)
> > + if (!bdev->funcs->io_mem_reserve)
> > return 0;
> >
> > - return bdev->driver->io_mem_reserve(bdev, mem);
> > + return bdev->funcs->io_mem_reserve(bdev, mem);
> > }
> >
> > -void ttm_mem_io_free(struct ttm_bo_device *bdev,
> > +void ttm_mem_io_free(struct ttm_device *bdev,
> > struct ttm_resource *mem)
> > {
> > if (!mem->bus.offset && !mem->bus.addr)
> > return;
> >
> > - if (bdev->driver->io_mem_free)
> > - bdev->driver->io_mem_free(bdev, mem);
> > + if (bdev->funcs->io_mem_free)
> > + bdev->funcs->io_mem_free(bdev, mem);
> >
> > mem->bus.offset = 0;
> > mem->bus.addr = NULL;
> > }
> >
> > -static int ttm_resource_ioremap(struct ttm_bo_device *bdev,
> > +static int ttm_resource_ioremap(struct ttm_device *bdev,
> > struct ttm_resource *mem,
> > void **virtual)
> > {
> > @@ -144,7 +144,7 @@ static int ttm_resource_ioremap(struct ttm_bo_device *bdev,
> > return 0;
> > }
> >
> > -static void ttm_resource_iounmap(struct ttm_bo_device *bdev,
> > +static void ttm_resource_iounmap(struct ttm_device *bdev,
> > struct ttm_resource *mem,
> > void *virtual)
> > {
> > @@ -214,7 +214,7 @@ int ttm_bo_move_memcpy(struct ttm_buffer_object *bo,
> > struct ttm_operation_ctx *ctx,
> > struct ttm_resource *new_mem)
> > {
> > - struct ttm_bo_device *bdev = bo->bdev;
> > + struct ttm_device *bdev = bo->bdev;
> > struct ttm_resource_manager *man = ttm_manager_type(bdev, new_mem->mem_type);
> > struct ttm_tt *ttm = bo->ttm;
> > struct ttm_resource *old_mem = &bo->mem;
> > @@ -355,7 +355,7 @@ static int ttm_buffer_object_transfer(struct ttm_buffer_object *bo,
> > * TODO: Explicit member copy would probably be better here.
> > */
> >
> > - atomic_inc(&ttm_bo_glob.bo_count);
> > + atomic_inc(&ttm_glob.bo_count);
> > INIT_LIST_HEAD(&fbo->base.ddestroy);
> > INIT_LIST_HEAD(&fbo->base.lru);
> > INIT_LIST_HEAD(&fbo->base.swap);
> > @@ -584,7 +584,7 @@ static int ttm_bo_move_to_ghost(struct ttm_buffer_object *bo,
> > static void ttm_bo_move_pipeline_evict(struct ttm_buffer_object *bo,
> > struct dma_fence *fence)
> > {
> > - struct ttm_bo_device *bdev = bo->bdev;
> > + struct ttm_device *bdev = bo->bdev;
> > struct ttm_resource_manager *from = ttm_manager_type(bdev, bo->mem.mem_type);
> >
> > /**
> > @@ -610,7 +610,7 @@ int ttm_bo_move_accel_cleanup(struct ttm_buffer_object *bo,
> > bool pipeline,
> > struct ttm_resource *new_mem)
> > {
> > - struct ttm_bo_device *bdev = bo->bdev;
> > + struct ttm_device *bdev = bo->bdev;
> > struct ttm_resource_manager *from = ttm_manager_type(bdev, bo->mem.mem_type);
> > struct ttm_resource_manager *man = ttm_manager_type(bdev, new_mem->mem_type);
> > int ret = 0;
> > diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c
> > index eeaca5d1efe3..697c088d1063 100644
> > --- a/drivers/gpu/drm/ttm/ttm_bo_vm.c
> > +++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c
> > @@ -96,10 +96,10 @@ static vm_fault_t ttm_bo_vm_fault_idle(struct ttm_buffer_object *bo,
> > static unsigned long ttm_bo_io_mem_pfn(struct ttm_buffer_object *bo,
> > unsigned long page_offset)
> > {
> > - struct ttm_bo_device *bdev = bo->bdev;
> > + struct ttm_device *bdev = bo->bdev;
> >
> > - if (bdev->driver->io_mem_pfn)
> > - return bdev->driver->io_mem_pfn(bo, page_offset);
> > + if (bdev->funcs->io_mem_pfn)
> > + return bdev->funcs->io_mem_pfn(bo, page_offset);
> >
> > return (bo->mem.bus.offset >> PAGE_SHIFT) + page_offset;
> > }
> > @@ -217,7 +217,7 @@ static vm_fault_t ttm_bo_vm_insert_huge(struct vm_fault *vmf,
> > if (page_to_pfn(ttm->pages[page_offset + i]) != pfn + i)
> > goto out_fallback;
> > }
> > - } else if (bo->bdev->driver->io_mem_pfn) {
> > + } else if (bo->bdev->funcs->io_mem_pfn) {
> > for (i = 1; i < fault_page_size; ++i) {
> > if (ttm_bo_io_mem_pfn(bo, page_offset + i) != pfn + i)
> > goto out_fallback;
> > @@ -279,7 +279,7 @@ vm_fault_t ttm_bo_vm_fault_reserved(struct vm_fault *vmf,
> > {
> > struct vm_area_struct *vma = vmf->vma;
> > struct ttm_buffer_object *bo = vma->vm_private_data;
> > - struct ttm_bo_device *bdev = bo->bdev;
> > + struct ttm_device *bdev = bo->bdev;
> > unsigned long page_offset;
> > unsigned long page_last;
> > unsigned long pfn;
> > @@ -490,8 +490,8 @@ int ttm_bo_vm_access(struct vm_area_struct *vma, unsigned long addr,
> > ret = ttm_bo_vm_access_kmap(bo, offset, buf, len, write);
> > break;
> > default:
> > - if (bo->bdev->driver->access_memory)
> > - ret = bo->bdev->driver->access_memory(
> > + if (bo->bdev->funcs->access_memory)
> > + ret = bo->bdev->funcs->access_memory(
> > bo, offset, buf, len, write);
> > else
> > ret = -EIO;
> > @@ -510,7 +510,7 @@ static const struct vm_operations_struct ttm_bo_vm_ops = {
> > .access = ttm_bo_vm_access,
> > };
> >
> > -static struct ttm_buffer_object *ttm_bo_vm_lookup(struct ttm_bo_device *bdev,
> > +static struct ttm_buffer_object *ttm_bo_vm_lookup(struct ttm_device *bdev,
> > unsigned long offset,
> > unsigned long pages)
> > {
> > @@ -557,9 +557,8 @@ static void ttm_bo_mmap_vma_setup(struct ttm_buffer_object *bo, struct vm_area_s
> > }
> >
> > int ttm_bo_mmap(struct file *filp, struct vm_area_struct *vma,
> > - struct ttm_bo_device *bdev)
> > + struct ttm_device *bdev)
> > {
> > - struct ttm_bo_driver *driver;
> > struct ttm_buffer_object *bo;
> > int ret;
> >
> > @@ -570,12 +569,11 @@ int ttm_bo_mmap(struct file *filp, struct vm_area_struct *vma,
> > if (unlikely(!bo))
> > return -EINVAL;
> >
> > - driver = bo->bdev->driver;
> > - if (unlikely(!driver->verify_access)) {
> > + if (unlikely(!bo->bdev->funcs->verify_access)) {
> > ret = -EPERM;
> > goto out_unref;
> > }
> > - ret = driver->verify_access(bo, filp);
> > + ret = bo->bdev->funcs->verify_access(bo, filp);
> > if (unlikely(ret != 0))
> > goto out_unref;
> >
> > diff --git a/drivers/gpu/drm/ttm/ttm_device.c b/drivers/gpu/drm/ttm/ttm_device.c
> > new file mode 100644
> > index 000000000000..65aa6e4f5c6c
> > --- /dev/null
> > +++ b/drivers/gpu/drm/ttm/ttm_device.c
> > @@ -0,0 +1,222 @@
> > +/* SPDX-License-Identifier: GPL-2.0 OR MIT */
> > +
> > +/*
> > + * Copyright (c) 2006-2009 VMware, Inc., Palo Alto, CA., USA
> > + * Copyright 2020 Advanced Micro Devices, Inc.
> > + *
> > + * Permission is hereby granted, free of charge, to any person obtaining a
> > + * copy of this software and associated documentation files (the "Software"),
> > + * to deal in the Software without restriction, including without limitation
> > + * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> > + * and/or sell copies of the Software, and to permit persons to whom the
> > + * Software is furnished to do so, subject to the following conditions:
> > + *
> > + * The above copyright notice and this permission notice shall be included in
> > + * all copies or substantial portions of the Software.
> > + *
> > + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> > + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> > + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> > + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
> > + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> > + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> > + * OTHER DEALINGS IN THE SOFTWARE.
> > + *
> > + * Authors: Christian König
> > + */
> > +
> > +#define pr_fmt(fmt) "[TTM DEVICE] " fmt
> > +
> > +#include <drm/ttm/ttm_module.h>
> > +#include <drm/ttm/ttm_device.h>
> > +#include <drm/ttm/ttm_memory.h>
> > +#include <drm/ttm/ttm_placement.h>
> > +
> > +/**
> > + * ttm_global_mutex - protecting the global state
> > + */
> > +DEFINE_MUTEX(ttm_global_mutex);
> > +unsigned ttm_glob_use_count;
> > +struct ttm_global ttm_glob;
> > +EXPORT_SYMBOL(ttm_glob);
> > +
> > +static struct attribute ttm_bo_count = {
> > + .name = "bo_count",
> > + .mode = S_IRUGO
> > +};
> > +
> > +static void ttm_global_kobj_release(struct kobject *kobj);
> > +
> > +static ssize_t ttm_global_show(struct kobject *kobj, struct attribute *attr,
> > + char *buffer)
> > +{
> > + struct ttm_global *glob = container_of(kobj, struct ttm_global, kobj);
> > +
> > + return snprintf(buffer, PAGE_SIZE, "%d\n",
> > + atomic_read(&glob->bo_count));
> > +}
> > +
> > +static struct attribute *ttm_global_attrs[] = {
> > + &ttm_bo_count,
> > + NULL
> > +};
> > +
> > +static const struct sysfs_ops ttm_global_ops = {
> > + .show = &ttm_global_show
> > +};
> > +
> > +static struct kobj_type ttm_glob_kobj_type = {
> > + .release = &ttm_global_kobj_release,
> > + .sysfs_ops = &ttm_global_ops,
> > + .default_attrs = ttm_global_attrs
> > +};
> > +
> > +static void ttm_global_kobj_release(struct kobject *kobj)
> > +{
> > + struct ttm_global *glob =
> > + container_of(kobj, struct ttm_global, kobj);
> > +
> > + __free_page(glob->dummy_read_page);
> > +}
> > +
> > +static void ttm_global_release(void)
> > +{
> > + struct ttm_global *glob = &ttm_glob;
> > +
> > + mutex_lock(&ttm_global_mutex);
> > + if (--ttm_glob_use_count > 0)
> > + goto out;
> > +
> > + kobject_del(&glob->kobj);
> > + kobject_put(&glob->kobj);
> > + ttm_mem_global_release(&ttm_mem_glob);
> > + memset(glob, 0, sizeof(*glob));
> > +out:
> > + mutex_unlock(&ttm_global_mutex);
> > +}
> > +
> > +static int ttm_global_init(void)
> > +{
> > + struct ttm_global *glob = &ttm_glob;
> > + int ret = 0;
> > + unsigned i;
> > +
> > + mutex_lock(&ttm_global_mutex);
> > + if (++ttm_glob_use_count > 1)
> > + goto out;
> > +
> > + ret = ttm_mem_global_init(&ttm_mem_glob);
> > + if (ret)
> > + goto out;
> > +
> > + spin_lock_init(&glob->lru_lock);
> > + glob->dummy_read_page = alloc_page(__GFP_ZERO | GFP_DMA32);
> > +
> > + if (unlikely(glob->dummy_read_page == NULL)) {
> > + ret = -ENOMEM;
> > + goto out;
> > + }
> > +
> > + for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i)
> > + INIT_LIST_HEAD(&glob->swap_lru[i]);
> > + INIT_LIST_HEAD(&glob->device_list);
> > + atomic_set(&glob->bo_count, 0);
> > +
> > + ret = kobject_init_and_add(
> > + &glob->kobj, &ttm_glob_kobj_type, ttm_get_kobj(), "buffer_objects");
> > + if (unlikely(ret != 0))
> > + kobject_put(&glob->kobj);
> > +out:
> > + mutex_unlock(&ttm_global_mutex);
> > + return ret;
> > +}
> > +
> > +static void ttm_init_sysman(struct ttm_device *bdev)
> > +{
> > + struct ttm_resource_manager *man = &bdev->sysman;
> > +
> > + /*
> > + * Initialize the system memory buffer type.
> > + * Other types need to be driver / IOCTL initialized.
> > + */
> > + man->use_tt = true;
> > +
> > + ttm_resource_manager_init(man, 0);
> > + ttm_set_driver_manager(bdev, TTM_PL_SYSTEM, man);
> > + ttm_resource_manager_set_used(man, true);
> > +}
> > +
> > +static void ttm_device_delayed_workqueue(struct work_struct *work)
> > +{
> > + struct ttm_device *bdev =
> > + container_of(work, struct ttm_device, wq.work);
> > +
> > + if (!ttm_bo_delayed_delete(bdev, false))
> > + schedule_delayed_work(&bdev->wq,
> > + ((HZ / 100) < 1) ? 1 : HZ / 100);
> > +}
> > +
> > +int ttm_device_init(struct ttm_device *bdev, struct ttm_device_funcs *funcs,
> > + struct address_space *mapping,
> > + struct drm_vma_offset_manager *vma_manager,
> > + bool need_dma32)
> > +{
> > + struct ttm_global *glob = &ttm_glob;
> > + int ret;
> > +
> > + if (WARN_ON(vma_manager == NULL))
> > + return -EINVAL;
> > +
> > + ret = ttm_global_init();
> > + if (ret)
> > + return ret;
> > +
> > + bdev->funcs = funcs;
> > +
> > + ttm_init_sysman(bdev);
> > +
> > + bdev->vma_manager = vma_manager;
> > + INIT_DELAYED_WORK(&bdev->wq, ttm_device_delayed_workqueue);
> > + INIT_LIST_HEAD(&bdev->ddestroy);
> > + bdev->dev_mapping = mapping;
> > + bdev->need_dma32 = need_dma32;
> > + mutex_lock(&ttm_global_mutex);
> > + list_add_tail(&bdev->device_list, &glob->device_list);
> > + mutex_unlock(&ttm_global_mutex);
> > +
> > + return 0;
> > +}
> > +EXPORT_SYMBOL(ttm_device_init);
> > +
> > +int ttm_device_release(struct ttm_device *bdev)
> > +{
> > + struct ttm_global *glob = &ttm_glob;
> > + struct ttm_resource_manager *man;
> > + int ret = 0;
> > + unsigned i;
> > +
> > + man = ttm_manager_type(bdev, TTM_PL_SYSTEM);
> > + ttm_resource_manager_set_used(man, false);
> > + ttm_set_driver_manager(bdev, TTM_PL_SYSTEM, NULL);
> > +
> > + mutex_lock(&ttm_global_mutex);
> > + list_del(&bdev->device_list);
> > + mutex_unlock(&ttm_global_mutex);
> > +
> > + cancel_delayed_work_sync(&bdev->wq);
> > +
> > + if (ttm_bo_delayed_delete(bdev, true))
> > + pr_debug("Delayed destroy list was clean\n");
> > +
> > + spin_lock(&glob->lru_lock);
> > + for (i = 0; i < TTM_MAX_BO_PRIORITY; ++i)
> > + if (list_empty(&man->lru[0]))
> > + pr_debug("Swap list %d was clean\n", i);
> > + spin_unlock(&glob->lru_lock);
> > +
> > + if (!ret)
> > + ttm_global_release();
> > +
> > + return ret;
> > +}
> > +EXPORT_SYMBOL(ttm_device_release);
> > diff --git a/drivers/gpu/drm/ttm/ttm_execbuf_util.c b/drivers/gpu/drm/ttm/ttm_execbuf_util.c
> > index 8a8f1a6a83a6..b98eb4c1e5ec 100644
> > --- a/drivers/gpu/drm/ttm/ttm_execbuf_util.c
> > +++ b/drivers/gpu/drm/ttm/ttm_execbuf_util.c
> > @@ -51,14 +51,14 @@ void ttm_eu_backoff_reservation(struct ww_acquire_ctx *ticket,
> > if (list_empty(list))
> > return;
> >
> > - spin_lock(&ttm_bo_glob.lru_lock);
> > + spin_lock(&ttm_glob.lru_lock);
> > list_for_each_entry(entry, list, head) {
> > struct ttm_buffer_object *bo = entry->bo;
> >
> > ttm_bo_move_to_lru_tail(bo, NULL);
> > dma_resv_unlock(bo->base.resv);
> > }
> > - spin_unlock(&ttm_bo_glob.lru_lock);
> > + spin_unlock(&ttm_glob.lru_lock);
> >
> > if (ticket)
> > ww_acquire_fini(ticket);
> > @@ -154,7 +154,7 @@ void ttm_eu_fence_buffer_objects(struct ww_acquire_ctx *ticket,
> > if (list_empty(list))
> > return;
> >
> > - spin_lock(&ttm_bo_glob.lru_lock);
> > + spin_lock(&ttm_glob.lru_lock);
> > list_for_each_entry(entry, list, head) {
> > struct ttm_buffer_object *bo = entry->bo;
> >
> > @@ -165,7 +165,7 @@ void ttm_eu_fence_buffer_objects(struct ww_acquire_ctx *ticket,
> > ttm_bo_move_to_lru_tail(bo, NULL);
> > dma_resv_unlock(bo->base.resv);
> > }
> > - spin_unlock(&ttm_bo_glob.lru_lock);
> > + spin_unlock(&ttm_glob.lru_lock);
> > if (ticket)
> > ww_acquire_fini(ticket);
> > }
> > diff --git a/drivers/gpu/drm/ttm/ttm_memory.c b/drivers/gpu/drm/ttm/ttm_memory.c
> > index 89d50f38c0f2..6a6c1072d831 100644
> > --- a/drivers/gpu/drm/ttm/ttm_memory.c
> > +++ b/drivers/gpu/drm/ttm/ttm_memory.c
> > @@ -275,7 +275,7 @@ static void ttm_shrink(struct ttm_mem_global *glob, bool from_wq,
> >
> > while (ttm_zones_above_swap_target(glob, from_wq, extra)) {
> > spin_unlock(&glob->lock);
> > - ret = ttm_bo_swapout(&ttm_bo_glob, ctx);
> > + ret = ttm_bo_swapout(&ttm_glob, ctx);
> > spin_lock(&glob->lock);
> > if (unlikely(ret != 0))
> > break;
> > diff --git a/drivers/gpu/drm/ttm/ttm_range_manager.c b/drivers/gpu/drm/ttm/ttm_range_manager.c
> > index 1da0e277c511..bd3c6c6b4328 100644
> > --- a/drivers/gpu/drm/ttm/ttm_range_manager.c
> > +++ b/drivers/gpu/drm/ttm/ttm_range_manager.c
> > @@ -112,7 +112,7 @@ static void ttm_range_man_free(struct ttm_resource_manager *man,
> >
> > static const struct ttm_resource_manager_func ttm_range_manager_func;
> >
> > -int ttm_range_man_init(struct ttm_bo_device *bdev,
> > +int ttm_range_man_init(struct ttm_device *bdev,
> > unsigned type, bool use_tt,
> > unsigned long p_size)
> > {
> > @@ -139,7 +139,7 @@ int ttm_range_man_init(struct ttm_bo_device *bdev,
> > }
> > EXPORT_SYMBOL(ttm_range_man_init);
> >
> > -int ttm_range_man_fini(struct ttm_bo_device *bdev,
> > +int ttm_range_man_fini(struct ttm_device *bdev,
> > unsigned type)
> > {
> > struct ttm_resource_manager *man = ttm_manager_type(bdev, type);
> > diff --git a/drivers/gpu/drm/ttm/ttm_resource.c b/drivers/gpu/drm/ttm/ttm_resource.c
> > index b325b9264203..7faa4a6ae28f 100644
> > --- a/drivers/gpu/drm/ttm/ttm_resource.c
> > +++ b/drivers/gpu/drm/ttm/ttm_resource.c
> > @@ -83,7 +83,7 @@ EXPORT_SYMBOL(ttm_resource_manager_init);
> > * Force all the objects out of a memory manager until clean.
> > * Part of memory manager cleanup sequence.
> > */
> > -int ttm_resource_manager_force_list_clean(struct ttm_bo_device *bdev,
> > +int ttm_resource_manager_force_list_clean(struct ttm_device *bdev,
> > struct ttm_resource_manager *man)
> > {
> > struct ttm_operation_ctx ctx = {
> > @@ -91,7 +91,7 @@ int ttm_resource_manager_force_list_clean(struct ttm_bo_device *bdev,
> > .no_wait_gpu = false,
> > .flags = TTM_OPT_FLAG_FORCE_ALLOC
> > };
> > - struct ttm_bo_global *glob = &ttm_bo_glob;
> > + struct ttm_global *glob = &ttm_glob;
> > struct dma_fence *fence;
> > int ret;
> > unsigned i;
> > diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
> > index 3e5dd6271d4c..95dffee8299d 100644
> > --- a/drivers/gpu/drm/ttm/ttm_tt.c
> > +++ b/drivers/gpu/drm/ttm/ttm_tt.c
> > @@ -44,7 +44,7 @@
> > */
> > int ttm_tt_create(struct ttm_buffer_object *bo, bool zero_alloc)
> > {
> > - struct ttm_bo_device *bdev = bo->bdev;
> > + struct ttm_device *bdev = bo->bdev;
> > uint32_t page_flags = 0;
> >
> > dma_resv_assert_held(bo->base.resv);
> > @@ -73,7 +73,7 @@ int ttm_tt_create(struct ttm_buffer_object *bo, bool zero_alloc)
> > return -EINVAL;
> > }
> >
> > - bo->ttm = bdev->driver->ttm_tt_create(bo, page_flags);
> > + bo->ttm = bdev->funcs->ttm_tt_create(bo, page_flags);
> > if (unlikely(bo->ttm == NULL))
> > return -ENOMEM;
> >
> > @@ -114,7 +114,7 @@ static int ttm_sg_tt_alloc_page_directory(struct ttm_dma_tt *ttm)
> > return 0;
> > }
> >
> > -void ttm_tt_destroy_common(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
> > +void ttm_tt_destroy_common(struct ttm_device *bdev, struct ttm_tt *ttm)
> > {
> > ttm_tt_unpopulate(bdev, ttm);
> >
> > @@ -125,9 +125,9 @@ void ttm_tt_destroy_common(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
> > }
> > EXPORT_SYMBOL(ttm_tt_destroy_common);
> >
> > -void ttm_tt_destroy(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
> > +void ttm_tt_destroy(struct ttm_device *bdev, struct ttm_tt *ttm)
> > {
> > - bdev->driver->ttm_tt_destroy(bdev, ttm);
> > + bdev->funcs->ttm_tt_destroy(bdev, ttm);
> > }
> >
> > static void ttm_tt_init_fields(struct ttm_tt *ttm,
> > @@ -258,7 +258,7 @@ int ttm_tt_swapin(struct ttm_tt *ttm)
> > return ret;
> > }
> >
> > -int ttm_tt_swapout(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
> > +int ttm_tt_swapout(struct ttm_device *bdev, struct ttm_tt *ttm)
> > {
> > struct address_space *swap_space;
> > struct file *swap_storage;
> > @@ -308,7 +308,7 @@ int ttm_tt_swapout(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
> > return ret;
> > }
> >
> > -static void ttm_tt_add_mapping(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
> > +static void ttm_tt_add_mapping(struct ttm_device *bdev, struct ttm_tt *ttm)
> > {
> > pgoff_t i;
> >
> > @@ -319,7 +319,7 @@ static void ttm_tt_add_mapping(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
> > ttm->pages[i]->mapping = bdev->dev_mapping;
> > }
> >
> > -int ttm_tt_populate(struct ttm_bo_device *bdev,
> > +int ttm_tt_populate(struct ttm_device *bdev,
> > struct ttm_tt *ttm, struct ttm_operation_ctx *ctx)
> > {
> > int ret;
> > @@ -330,8 +330,8 @@ int ttm_tt_populate(struct ttm_bo_device *bdev,
> > if (ttm_tt_is_populated(ttm))
> > return 0;
> >
> > - if (bdev->driver->ttm_tt_populate)
> > - ret = bdev->driver->ttm_tt_populate(bdev, ttm, ctx);
> > + if (bdev->funcs->ttm_tt_populate)
> > + ret = bdev->funcs->ttm_tt_populate(bdev, ttm, ctx);
> > else
> > ret = ttm_pool_populate(ttm, ctx);
> > if (!ret)
> > @@ -354,15 +354,15 @@ static void ttm_tt_clear_mapping(struct ttm_tt *ttm)
> > }
> > }
> >
> > -void ttm_tt_unpopulate(struct ttm_bo_device *bdev,
> > +void ttm_tt_unpopulate(struct ttm_device *bdev,
> > struct ttm_tt *ttm)
> > {
> > if (!ttm_tt_is_populated(ttm))
> > return;
> >
> > ttm_tt_clear_mapping(ttm);
> > - if (bdev->driver->ttm_tt_unpopulate)
> > - bdev->driver->ttm_tt_unpopulate(bdev, ttm);
> > + if (bdev->funcs->ttm_tt_unpopulate)
> > + bdev->funcs->ttm_tt_unpopulate(bdev, ttm);
> > else
> > ttm_pool_unpopulate(ttm);
> > }
> > diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c b/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c
> > index f21881e087db..d0228eb16147 100644
> > --- a/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c
> > +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c
> > @@ -465,13 +465,13 @@ int vmw_bo_cpu_blit(struct ttm_buffer_object *dst,
> > dma_resv_assert_held(src->base.resv);
> >
> > if (!ttm_tt_is_populated(dst->ttm)) {
> > - ret = dst->bdev->driver->ttm_tt_populate(dst->bdev, dst->ttm, &ctx);
> > + ret = dst->bdev->funcs->ttm_tt_populate(dst->bdev, dst->ttm, &ctx);
> > if (ret)
> > return ret;
> > }
> >
> > if (!ttm_tt_is_populated(src->ttm)) {
> > - ret = src->bdev->driver->ttm_tt_populate(src->bdev, src->ttm, &ctx);
> > + ret = src->bdev->funcs->ttm_tt_populate(src->bdev, src->ttm, &ctx);
> > if (ret)
> > return ret;
> > }
> > diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
> > index 9a66ba254326..cf8d9f1145de 100644
> > --- a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
> > +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
> > @@ -546,7 +546,7 @@ int vmw_bo_init(struct vmw_private *dev_priv,
> > void (*bo_free)(struct ttm_buffer_object *bo))
> > {
> > struct ttm_operation_ctx ctx = { interruptible, false };
> > - struct ttm_bo_device *bdev = &dev_priv->bdev;
> > + struct ttm_device *bdev = &dev_priv->bdev;
> > size_t acc_size;
> > int ret;
> > bool user = (bo_free == &vmw_user_bo_destroy);
> > @@ -1058,7 +1058,7 @@ int vmw_user_bo_reference(struct ttm_object_file *tfile,
> > void vmw_bo_fence_single(struct ttm_buffer_object *bo,
> > struct vmw_fence_obj *fence)
> > {
> > - struct ttm_bo_device *bdev = bo->bdev;
> > + struct ttm_device *bdev = bo->bdev;
> >
> > struct vmw_private *dev_priv =
> > container_of(bdev, struct vmw_private, bdev);
> > diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
> > index bdb7a5e96560..fcda3b76e0df 100644
> > --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
> > +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
> > @@ -872,7 +872,7 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
> > drm_vma_offset_manager_init(&dev_priv->vma_manager,
> > DRM_FILE_PAGE_OFFSET_START,
> > DRM_FILE_PAGE_OFFSET_SIZE);
> > - ret = ttm_bo_device_init(&dev_priv->bdev,
> > + ret = ttm_device_init(&dev_priv->bdev,
> > &vmw_bo_driver,
> > dev->anon_inode->i_mapping,
> > &dev_priv->vma_manager,
> > @@ -993,7 +993,7 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
> > vmw_gmrid_man_fini(dev_priv, VMW_PL_GMR);
> > vmw_vram_manager_fini(dev_priv);
> > out_no_vram:
> > - (void)ttm_bo_device_release(&dev_priv->bdev);
> > + (void)ttm_device_release(&dev_priv->bdev);
> > out_no_bdev:
> > vmw_fence_manager_takedown(dev_priv->fman);
> > out_no_fman:
> > @@ -1045,7 +1045,7 @@ static void vmw_driver_unload(struct drm_device *dev)
> > if (dev_priv->has_mob)
> > vmw_gmrid_man_fini(dev_priv, VMW_PL_MOB);
> > vmw_vram_manager_fini(dev_priv);
> > - (void) ttm_bo_device_release(&dev_priv->bdev);
> > + (void) ttm_device_release(&dev_priv->bdev);
> > drm_vma_offset_manager_destroy(&dev_priv->vma_manager);
> > vmw_release_device_late(dev_priv);
> > vmw_fence_manager_takedown(dev_priv->fman);
> > diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
> > index b45becbb00f8..c8d3e3eeed40 100644
> > --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
> > +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
> > @@ -490,7 +490,7 @@ enum vmw_sm_type {
> > };
> >
> > struct vmw_private {
> > - struct ttm_bo_device bdev;
> > + struct ttm_device bdev;
> >
> > struct vmw_fifo_state fifo;
> >
> > @@ -1014,7 +1014,7 @@ extern struct ttm_placement vmw_evictable_placement;
> > extern struct ttm_placement vmw_srf_placement;
> > extern struct ttm_placement vmw_mob_placement;
> > extern struct ttm_placement vmw_nonfixed_placement;
> > -extern struct ttm_bo_driver vmw_bo_driver;
> > +extern struct ttm_device_funcs vmw_bo_driver;
> > extern const struct vmw_sg_table *
> > vmw_bo_sg_table(struct ttm_buffer_object *bo);
> > extern int vmw_bo_create_and_populate(struct vmw_private *dev_priv,
> > diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
> > index 5e922d9d5f2c..205424017e23 100644
> > --- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
> > +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
> > @@ -858,7 +858,7 @@ void vmw_query_move_notify(struct ttm_buffer_object *bo,
> > struct ttm_resource *mem)
> > {
> > struct vmw_buffer_object *dx_query_mob;
> > - struct ttm_bo_device *bdev = bo->bdev;
> > + struct ttm_device *bdev = bo->bdev;
> > struct vmw_private *dev_priv;
> >
> >
> > diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
> > index 975d06c2e35e..81aecd72a971 100644
> > --- a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
> > +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
> > @@ -489,7 +489,7 @@ const struct vmw_sg_table *vmw_bo_sg_table(struct ttm_buffer_object *bo)
> > }
> >
> >
> > -static int vmw_ttm_bind(struct ttm_bo_device *bdev,
> > +static int vmw_ttm_bind(struct ttm_device *bdev,
> > struct ttm_tt *ttm, struct ttm_resource *bo_mem)
> > {
> > struct vmw_ttm_tt *vmw_be =
> > @@ -533,7 +533,7 @@ static int vmw_ttm_bind(struct ttm_bo_device *bdev,
> > return ret;
> > }
> >
> > -static void vmw_ttm_unbind(struct ttm_bo_device *bdev,
> > +static void vmw_ttm_unbind(struct ttm_device *bdev,
> > struct ttm_tt *ttm)
> > {
> > struct vmw_ttm_tt *vmw_be =
> > @@ -559,7 +559,7 @@ static void vmw_ttm_unbind(struct ttm_bo_device *bdev,
> > }
> >
> >
> > -static void vmw_ttm_destroy(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
> > +static void vmw_ttm_destroy(struct ttm_device *bdev, struct ttm_tt *ttm)
> > {
> > struct vmw_ttm_tt *vmw_be =
> > container_of(ttm, struct vmw_ttm_tt, dma_ttm.ttm);
> > @@ -579,7 +579,7 @@ static void vmw_ttm_destroy(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
> > }
> >
> >
> > -static int vmw_ttm_populate(struct ttm_bo_device *bdev,
> > +static int vmw_ttm_populate(struct ttm_device *bdev,
> > struct ttm_tt *ttm, struct ttm_operation_ctx *ctx)
> > {
> > struct vmw_ttm_tt *vmw_tt =
> > @@ -608,7 +608,7 @@ static int vmw_ttm_populate(struct ttm_bo_device *bdev,
> > return ret;
> > }
> >
> > -static void vmw_ttm_unpopulate(struct ttm_bo_device *bdev,
> > +static void vmw_ttm_unpopulate(struct ttm_device *bdev,
> > struct ttm_tt *ttm)
> > {
> > struct vmw_ttm_tt *vmw_tt = container_of(ttm, struct vmw_ttm_tt,
> > @@ -675,7 +675,7 @@ static int vmw_verify_access(struct ttm_buffer_object *bo, struct file *filp)
> > return vmw_user_bo_verify_access(bo, tfile);
> > }
> >
> > -static int vmw_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_resource *mem)
> > +static int vmw_ttm_io_mem_reserve(struct ttm_device *bdev, struct ttm_resource *mem)
> > {
> > struct vmw_private *dev_priv = container_of(bdev, struct vmw_private, bdev);
> >
> > @@ -727,7 +727,7 @@ static void vmw_swap_notify(struct ttm_buffer_object *bo)
> > }
> >
> >
> > -struct ttm_bo_driver vmw_bo_driver = {
> > +struct ttm_device_funcs vmw_bo_driver = {
> > .ttm_tt_create = &vmw_ttm_tt_create,
> > .ttm_tt_populate = &vmw_ttm_populate,
> > .ttm_tt_unpopulate = &vmw_ttm_unpopulate,
> > diff --git a/include/drm/drm_gem_vram_helper.h b/include/drm/drm_gem_vram_helper.h
> > index 128f88174d32..5e92d7014125 100644
> > --- a/include/drm/drm_gem_vram_helper.h
> > +++ b/include/drm/drm_gem_vram_helper.h
> > @@ -172,19 +172,19 @@ struct drm_vram_mm {
> > uint64_t vram_base;
> > size_t vram_size;
> >
> > - struct ttm_bo_device bdev;
> > + struct ttm_device bdev;
> > };
> >
> > /**
> > * drm_vram_mm_of_bdev() - \
> > - Returns the container of type &struct ttm_bo_device for field bdev.
> > + Returns the container of type &struct ttm_device for field bdev.
> > * @bdev: the TTM BO device
> > *
> > * Returns:
> > * The containing instance of &struct drm_vram_mm
> > */
> > static inline struct drm_vram_mm *drm_vram_mm_of_bdev(
> > - struct ttm_bo_device *bdev)
> > + struct ttm_device *bdev)
> > {
> > return container_of(bdev, struct drm_vram_mm, bdev);
> > }
> > diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
> > index c96a25d571c8..a02935e0d121 100644
> > --- a/include/drm/ttm/ttm_bo_api.h
> > +++ b/include/drm/ttm/ttm_bo_api.h
> > @@ -44,9 +44,9 @@
> >
> > #include "ttm_resource.h"
> >
> > -struct ttm_bo_global;
> > +struct ttm_global;
> >
> > -struct ttm_bo_device;
> > +struct ttm_device;
> >
> > struct drm_mm_node;
> >
> > @@ -120,7 +120,7 @@ struct ttm_buffer_object {
> > * Members constant at init.
> > */
> >
> > - struct ttm_bo_device *bdev;
> > + struct ttm_device *bdev;
> > enum ttm_bo_type type;
> > void (*destroy) (struct ttm_buffer_object *);
> > unsigned long num_pages;
> > @@ -310,7 +310,7 @@ void ttm_bo_put(struct ttm_buffer_object *bo);
> > * @bulk: optional bulk move structure to remember BO positions
> > *
> > * Move this BO to the tail of all lru lists used to lookup and reserve an
> > - * object. This function must be called with struct ttm_bo_global::lru_lock
> > + * object. This function must be called with struct ttm_global::lru_lock
> > * held, and is used to make a BO less likely to be considered for eviction.
> > */
> > void ttm_bo_move_to_lru_tail(struct ttm_buffer_object *bo,
> > @@ -322,7 +322,7 @@ void ttm_bo_move_to_lru_tail(struct ttm_buffer_object *bo,
> > * @bulk: bulk move structure
> > *
> > * Bulk move BOs to the LRU tail, only valid to use when driver makes sure that
> > - * BO order never changes. Should be called with ttm_bo_global::lru_lock held.
> > + * BO order never changes. Should be called with ttm_global::lru_lock held.
> > */
> > void ttm_bo_bulk_move_lru_tail(struct ttm_lru_bulk_move *bulk);
> >
> > @@ -333,14 +333,14 @@ void ttm_bo_bulk_move_lru_tail(struct ttm_lru_bulk_move *bulk);
> > * Returns
> > * True if the workqueue was queued at the time
> > */
> > -int ttm_bo_lock_delayed_workqueue(struct ttm_bo_device *bdev);
> > +int ttm_bo_lock_delayed_workqueue(struct ttm_device *bdev);
> >
> > /**
> > * ttm_bo_unlock_delayed_workqueue
> > *
> > * Allows the delayed workqueue to run.
> > */
> > -void ttm_bo_unlock_delayed_workqueue(struct ttm_bo_device *bdev, int resched);
> > +void ttm_bo_unlock_delayed_workqueue(struct ttm_device *bdev, int resched);
> >
> > /**
> > * ttm_bo_eviction_valuable
> > @@ -353,14 +353,14 @@ void ttm_bo_unlock_delayed_workqueue(struct ttm_bo_device *bdev, int resched);
> > bool ttm_bo_eviction_valuable(struct ttm_buffer_object *bo,
> > const struct ttm_place *place);
> >
> > -size_t ttm_bo_dma_acc_size(struct ttm_bo_device *bdev,
> > +size_t ttm_bo_dma_acc_size(struct ttm_device *bdev,
> > unsigned long bo_size,
> > unsigned struct_size);
> >
> > /**
> > * ttm_bo_init_reserved
> > *
> > - * @bdev: Pointer to a ttm_bo_device struct.
> > + * @bdev: Pointer to a ttm_device struct.
> > * @bo: Pointer to a ttm_buffer_object to be initialized.
> > * @size: Requested size of buffer object.
> > * @type: Requested type of buffer object.
> > @@ -392,7 +392,7 @@ size_t ttm_bo_dma_acc_size(struct ttm_bo_device *bdev,
> > * -ERESTARTSYS: Interrupted by signal while sleeping waiting for resources.
> > */
> >
> > -int ttm_bo_init_reserved(struct ttm_bo_device *bdev,
> > +int ttm_bo_init_reserved(struct ttm_device *bdev,
> > struct ttm_buffer_object *bo,
> > unsigned long size,
> > enum ttm_bo_type type,
> > @@ -407,7 +407,7 @@ int ttm_bo_init_reserved(struct ttm_bo_device *bdev,
> > /**
> > * ttm_bo_init
> > *
> > - * @bdev: Pointer to a ttm_bo_device struct.
> > + * @bdev: Pointer to a ttm_device struct.
> > * @bo: Pointer to a ttm_buffer_object to be initialized.
> > * @size: Requested size of buffer object.
> > * @type: Requested type of buffer object.
> > @@ -441,7 +441,7 @@ int ttm_bo_init_reserved(struct ttm_bo_device *bdev,
> > * -EINVAL: Invalid placement flags.
> > * -ERESTARTSYS: Interrupted by signal while sleeping waiting for resources.
> > */
> > -int ttm_bo_init(struct ttm_bo_device *bdev, struct ttm_buffer_object *bo,
> > +int ttm_bo_init(struct ttm_device *bdev, struct ttm_buffer_object *bo,
> > unsigned long size, enum ttm_bo_type type,
> > struct ttm_placement *placement,
> > uint32_t page_alignment, bool interrubtible, size_t acc_size,
> > @@ -451,7 +451,7 @@ int ttm_bo_init(struct ttm_bo_device *bdev, struct ttm_buffer_object *bo,
> > /**
> > * ttm_bo_evict_mm
> > *
> > - * @bdev: Pointer to a ttm_bo_device struct.
> > + * @bdev: Pointer to a ttm_device struct.
> > * @mem_type: The memory type.
> > *
> > * Evicts all buffers on the lru list of the memory type.
> > @@ -459,14 +459,14 @@ int ttm_bo_init(struct ttm_bo_device *bdev, struct ttm_buffer_object *bo,
> > * out-of-memory-space-due-to-fragmentation handler.
> > * The caller must make sure that there are no other processes
> > * currently validating buffers, and can do that by taking the
> > - * struct ttm_bo_device::ttm_lock in write mode.
> > + * struct ttm_device::ttm_lock in write mode.
> > *
> > * Returns:
> > * -EINVAL: Invalid or uninitialized memory type.
> > * -ERESTARTSYS: The call was interrupted by a signal while waiting to
> > * evict a buffer.
> > */
> > -int ttm_bo_evict_mm(struct ttm_bo_device *bdev, unsigned mem_type);
> > +int ttm_bo_evict_mm(struct ttm_device *bdev, unsigned mem_type);
> >
> > /**
> > * ttm_kmap_obj_virtual
> > @@ -529,18 +529,18 @@ int ttm_bo_mmap_obj(struct vm_area_struct *vma, struct ttm_buffer_object *bo);
> > *
> > * @filp: filp as input from the mmap method.
> > * @vma: vma as input from the mmap method.
> > - * @bdev: Pointer to the ttm_bo_device with the address space manager.
> > + * @bdev: Pointer to the ttm_device with the address space manager.
> > *
> > * This function is intended to be called by the device mmap method.
> > * if the device address space is to be backed by the bo manager.
> > */
> > int ttm_bo_mmap(struct file *filp, struct vm_area_struct *vma,
> > - struct ttm_bo_device *bdev);
> > + struct ttm_device *bdev);
> >
> > /**
> > * ttm_bo_io
> > *
> > - * @bdev: Pointer to the struct ttm_bo_device.
> > + * @bdev: Pointer to the struct ttm_device.
> > * @filp: Pointer to the struct file attempting to read / write.
> > * @wbuf: User-space pointer to address of buffer to write. NULL on read.
> > * @rbuf: User-space pointer to address of buffer to read into.
> > @@ -557,12 +557,11 @@ int ttm_bo_mmap(struct file *filp, struct vm_area_struct *vma,
> > * the function may return -ERESTARTSYS if
> > * interrupted by a signal.
> > */
> > -ssize_t ttm_bo_io(struct ttm_bo_device *bdev, struct file *filp,
> > +ssize_t ttm_bo_io(struct ttm_device *bdev, struct file *filp,
> > const char __user *wbuf, char __user *rbuf,
> > size_t count, loff_t *f_pos, bool write);
> >
> > -int ttm_bo_swapout(struct ttm_bo_global *glob,
> > - struct ttm_operation_ctx *ctx);
> > +int ttm_bo_swapout(struct ttm_global *glob, struct ttm_operation_ctx *ctx);
> > void ttm_bo_swapout_all(void);
> >
> > /**
> > @@ -609,7 +608,7 @@ static inline void ttm_bo_unpin(struct ttm_buffer_object *bo)
> > --bo->pin_count;
> > }
> >
> > -int ttm_mem_evict_first(struct ttm_bo_device *bdev,
> > +int ttm_mem_evict_first(struct ttm_device *bdev,
> > struct ttm_resource_manager *man,
> > const struct ttm_place *place,
> > struct ttm_operation_ctx *ctx,
> > @@ -634,5 +633,6 @@ void ttm_bo_vm_close(struct vm_area_struct *vma);
> >
> > int ttm_bo_vm_access(struct vm_area_struct *vma, unsigned long addr,
> > void *buf, int len, int write);
> > +bool ttm_bo_delayed_delete(struct ttm_device *bdev, bool remove_all);
> >
> > #endif
> > diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
> > index a028b418c6b4..63801fa9e993 100644
> > --- a/include/drm/ttm/ttm_bo_driver.h
> > +++ b/include/drm/ttm/ttm_bo_driver.h
> > @@ -37,331 +37,14 @@
> > #include <linux/spinlock.h>
> > #include <linux/dma-resv.h>
> >
> > +#include <drm/ttm/ttm_device.h>
> > +
> > #include "ttm_bo_api.h"
> > #include "ttm_memory.h"
> > #include "ttm_module.h"
> > #include "ttm_placement.h"
> > #include "ttm_tt.h"
> >
> > -/**
> > - * struct ttm_bo_driver
> > - *
> > - * @create_ttm_backend_entry: Callback to create a struct ttm_backend.
> > - * @evict_flags: Callback to obtain placement flags when a buffer is evicted.
> > - * @move: Callback for a driver to hook in accelerated functions to
> > - * move a buffer.
> > - * If set to NULL, a potentially slow memcpy() move is used.
> > - */
> > -
> > -struct ttm_bo_driver {
> > - /**
> > - * ttm_tt_create
> > - *
> > - * @bo: The buffer object to create the ttm for.
> > - * @page_flags: Page flags as identified by TTM_PAGE_FLAG_XX flags.
> > - *
> > - * Create a struct ttm_tt to back data with system memory pages.
> > - * No pages are actually allocated.
> > - * Returns:
> > - * NULL: Out of memory.
> > - */
> > - struct ttm_tt *(*ttm_tt_create)(struct ttm_buffer_object *bo,
> > - uint32_t page_flags);
> > -
> > - /**
> > - * ttm_tt_populate
> > - *
> > - * @ttm: The struct ttm_tt to contain the backing pages.
> > - *
> > - * Allocate all backing pages
> > - * Returns:
> > - * -ENOMEM: Out of memory.
> > - */
> > - int (*ttm_tt_populate)(struct ttm_bo_device *bdev,
> > - struct ttm_tt *ttm,
> > - struct ttm_operation_ctx *ctx);
> > -
> > - /**
> > - * ttm_tt_unpopulate
> > - *
> > - * @ttm: The struct ttm_tt to contain the backing pages.
> > - *
> > - * Free all backing page
> > - */
> > - void (*ttm_tt_unpopulate)(struct ttm_bo_device *bdev, struct ttm_tt *ttm);
> > -
> > - /**
> > - * ttm_tt_bind
> > - *
> > - * @bdev: Pointer to a ttm device
> > - * @ttm: Pointer to a struct ttm_tt.
> > - * @bo_mem: Pointer to a struct ttm_resource describing the
> > - * memory type and location for binding.
> > - *
> > - * Bind the backend pages into the aperture in the location
> > - * indicated by @bo_mem. This function should be able to handle
> > - * differences between aperture and system page sizes.
> > - */
> > - int (*ttm_tt_bind)(struct ttm_bo_device *bdev, struct ttm_tt *ttm, struct ttm_resource *bo_mem);
> > -
> > - /**
> > - * ttm_tt_unbind
> > - *
> > - * @bdev: Pointer to a ttm device
> > - * @ttm: Pointer to a struct ttm_tt.
> > - *
> > - * Unbind previously bound backend pages. This function should be
> > - * able to handle differences between aperture and system page sizes.
> > - */
> > - void (*ttm_tt_unbind)(struct ttm_bo_device *bdev, struct ttm_tt *ttm);
> > -
> > - /**
> > - * ttm_tt_destroy
> > - *
> > - * @bdev: Pointer to a ttm device
> > - * @ttm: Pointer to a struct ttm_tt.
> > - *
> > - * Destroy the backend. This will be call back from ttm_tt_destroy so
> > - * don't call ttm_tt_destroy from the callback or infinite loop.
> > - */
> > - void (*ttm_tt_destroy)(struct ttm_bo_device *bdev, struct ttm_tt *ttm);
> > -
> > - /**
> > - * struct ttm_bo_driver member eviction_valuable
> > - *
> > - * @bo: the buffer object to be evicted
> > - * @place: placement we need room for
> > - *
> > - * Check with the driver if it is valuable to evict a BO to make room
> > - * for a certain placement.
> > - */
> > - bool (*eviction_valuable)(struct ttm_buffer_object *bo,
> > - const struct ttm_place *place);
> > - /**
> > - * struct ttm_bo_driver member evict_flags:
> > - *
> > - * @bo: the buffer object to be evicted
> > - *
> > - * Return the bo flags for a buffer which is not mapped to the hardware.
> > - * These will be placed in proposed_flags so that when the move is
> > - * finished, they'll end up in bo->mem.flags
> > - */
> > -
> > - void (*evict_flags)(struct ttm_buffer_object *bo,
> > - struct ttm_placement *placement);
> > -
> > - /**
> > - * struct ttm_bo_driver member move:
> > - *
> > - * @bo: the buffer to move
> > - * @evict: whether this motion is evicting the buffer from
> > - * the graphics address space
> > - * @ctx: context for this move with parameters
> > - * @new_mem: the new memory region receiving the buffer
> > - *
> > - * Move a buffer between two memory regions.
> > - */
> > - int (*move)(struct ttm_buffer_object *bo, bool evict,
> > - struct ttm_operation_ctx *ctx,
> > - struct ttm_resource *new_mem);
> > -
> > - /**
> > - * struct ttm_bo_driver_member verify_access
> > - *
> > - * @bo: Pointer to a buffer object.
> > - * @filp: Pointer to a struct file trying to access the object.
> > - *
> > - * Called from the map / write / read methods to verify that the
> > - * caller is permitted to access the buffer object.
> > - * This member may be set to NULL, which will refuse this kind of
> > - * access for all buffer objects.
> > - * This function should return 0 if access is granted, -EPERM otherwise.
> > - */
> > - int (*verify_access)(struct ttm_buffer_object *bo,
> > - struct file *filp);
> > -
> > - /**
> > - * Hook to notify driver about a driver move so it
> > - * can do tiling things and book-keeping.
> > - *
> > - * @evict: whether this move is evicting the buffer from the graphics
> > - * address space
> > - */
> > - void (*move_notify)(struct ttm_buffer_object *bo,
> > - bool evict,
> > - struct ttm_resource *new_mem);
> > -
> > - /**
> > - * notify the driver that we're about to swap out this bo
> > - */
> > - void (*swap_notify)(struct ttm_buffer_object *bo);
> > -
> > - /**
> > - * Driver callback on when mapping io memory (for bo_move_memcpy
> > - * for instance). TTM will take care to call io_mem_free whenever
> > - * the mapping is not use anymore. io_mem_reserve & io_mem_free
> > - * are balanced.
> > - */
> > - int (*io_mem_reserve)(struct ttm_bo_device *bdev,
> > - struct ttm_resource *mem);
> > - void (*io_mem_free)(struct ttm_bo_device *bdev,
> > - struct ttm_resource *mem);
> > -
> > - /**
> > - * Return the pfn for a given page_offset inside the BO.
> > - *
> > - * @bo: the BO to look up the pfn for
> > - * @page_offset: the offset to look up
> > - */
> > - unsigned long (*io_mem_pfn)(struct ttm_buffer_object *bo,
> > - unsigned long page_offset);
> > -
> > - /**
> > - * Read/write memory buffers for ptrace access
> > - *
> > - * @bo: the BO to access
> > - * @offset: the offset from the start of the BO
> > - * @buf: pointer to source/destination buffer
> > - * @len: number of bytes to copy
> > - * @write: whether to read (0) from or write (non-0) to BO
> > - *
> > - * If successful, this function should return the number of
> > - * bytes copied, -EIO otherwise. If the number of bytes
> > - * returned is < len, the function may be called again with
> > - * the remainder of the buffer to copy.
> > - */
> > - int (*access_memory)(struct ttm_buffer_object *bo, unsigned long offset,
> > - void *buf, int len, int write);
> > -
> > - /**
> > - * struct ttm_bo_driver member del_from_lru_notify
> > - *
> > - * @bo: the buffer object deleted from lru
> > - *
> > - * notify driver that a BO was deleted from LRU.
> > - */
> > - void (*del_from_lru_notify)(struct ttm_buffer_object *bo);
> > -
> > - /**
> > - * Notify the driver that we're about to release a BO
> > - *
> > - * @bo: BO that is about to be released
> > - *
> > - * Gives the driver a chance to do any cleanup, including
> > - * adding fences that may force a delayed delete
> > - */
> > - void (*release_notify)(struct ttm_buffer_object *bo);
> > -};
> > -
> > -/**
> > - * struct ttm_bo_global - Buffer object driver global data.
> > - *
> > - * @dummy_read_page: Pointer to a dummy page used for mapping requests
> > - * of unpopulated pages.
> > - * @shrink: A shrink callback object used for buffer object swap.
> > - * @device_list_mutex: Mutex protecting the device list.
> > - * This mutex is held while traversing the device list for pm options.
> > - * @lru_lock: Spinlock protecting the bo subsystem lru lists.
> > - * @device_list: List of buffer object devices.
> > - * @swap_lru: Lru list of buffer objects used for swapping.
> > - */
> > -
> > -extern struct ttm_bo_global {
> > -
> > - /**
> > - * Constant after init.
> > - */
> > -
> > - struct kobject kobj;
> > - struct page *dummy_read_page;
> > - spinlock_t lru_lock;
> > -
> > - /**
> > - * Protected by ttm_global_mutex.
> > - */
> > - struct list_head device_list;
> > -
> > - /**
> > - * Protected by the lru_lock.
> > - */
> > - struct list_head swap_lru[TTM_MAX_BO_PRIORITY];
> > -
> > - /**
> > - * Internal protection.
> > - */
> > - atomic_t bo_count;
> > -} ttm_bo_glob;
> > -
> > -
> > -#define TTM_NUM_MEM_TYPES 8
> > -
> > -/**
> > - * struct ttm_bo_device - Buffer object driver device-specific data.
> > - *
> > - * @driver: Pointer to a struct ttm_bo_driver struct setup by the driver.
> > - * @man: An array of resource_managers.
> > - * @vma_manager: Address space manager (pointer)
> > - * lru_lock: Spinlock that protects the buffer+device lru lists and
> > - * ddestroy lists.
> > - * @dev_mapping: A pointer to the struct address_space representing the
> > - * device address space.
> > - * @wq: Work queue structure for the delayed delete workqueue.
> > - * @no_retry: Don't retry allocation if it fails
> > - *
> > - */
> > -
> > -struct ttm_bo_device {
> > -
> > - /*
> > - * Constant after bo device init / atomic.
> > - */
> > - struct list_head device_list;
> > - struct ttm_bo_driver *driver;
> > - /*
> > - * access via ttm_manager_type.
> > - */
> > - struct ttm_resource_manager sysman;
> > - struct ttm_resource_manager *man_drv[TTM_NUM_MEM_TYPES];
> > - /*
> > - * Protected by internal locks.
> > - */
> > - struct drm_vma_offset_manager *vma_manager;
> > -
> > - /*
> > - * Protected by the global:lru lock.
> > - */
> > - struct list_head ddestroy;
> > -
> > - /*
> > - * Protected by load / firstopen / lastclose /unload sync.
> > - */
> > -
> > - struct address_space *dev_mapping;
> > -
> > - /*
> > - * Internal protection.
> > - */
> > -
> > - struct delayed_work wq;
> > -
> > - bool need_dma32;
> > -
> > - bool no_retry;
> > -};
> > -
> > -static inline struct ttm_resource_manager *ttm_manager_type(struct ttm_bo_device *bdev,
> > - int mem_type)
> > -{
> > - return bdev->man_drv[mem_type];
> > -}
> > -
> > -static inline void ttm_set_driver_manager(struct ttm_bo_device *bdev,
> > - int type,
> > - struct ttm_resource_manager *manager)
> > -{
> > - bdev->man_drv[type] = manager;
> > -}
> > -
> > /**
> > * struct ttm_lru_bulk_move_pos
> > *
> > @@ -418,30 +101,6 @@ int ttm_bo_mem_space(struct ttm_buffer_object *bo,
> > struct ttm_resource *mem,
> > struct ttm_operation_ctx *ctx);
> >
> > -int ttm_bo_device_release(struct ttm_bo_device *bdev);
> > -
> > -/**
> > - * ttm_bo_device_init
> > - *
> > - * @bdev: A pointer to a struct ttm_bo_device to initialize.
> > - * @glob: A pointer to an initialized struct ttm_bo_global.
> > - * @driver: A pointer to a struct ttm_bo_driver set up by the caller.
> > - * @mapping: The address space to use for this bo.
> > - * @vma_manager: A pointer to a vma manager.
> > - * @file_page_offset: Offset into the device address space that is available
> > - * for buffer data. This ensures compatibility with other users of the
> > - * address space.
> > - *
> > - * Initializes a struct ttm_bo_device:
> > - * Returns:
> > - * !0: Failure.
> > - */
> > -int ttm_bo_device_init(struct ttm_bo_device *bdev,
> > - struct ttm_bo_driver *driver,
> > - struct address_space *mapping,
> > - struct drm_vma_offset_manager *vma_manager,
> > - bool need_dma32);
> > -
> > /**
> > * ttm_bo_unmap_virtual
> > *
> > @@ -531,9 +190,9 @@ static inline int ttm_bo_reserve_slowpath(struct ttm_buffer_object *bo,
> >
> > static inline void ttm_bo_move_to_lru_tail_unlocked(struct ttm_buffer_object *bo)
> > {
> > - spin_lock(&ttm_bo_glob.lru_lock);
> > + spin_lock(&ttm_glob.lru_lock);
> > ttm_bo_move_to_lru_tail(bo, NULL);
> > - spin_unlock(&ttm_bo_glob.lru_lock);
> > + spin_unlock(&ttm_glob.lru_lock);
> > }
> >
> > static inline void ttm_bo_assign_mem(struct ttm_buffer_object *bo,
> > @@ -576,9 +235,9 @@ static inline void ttm_bo_unreserve(struct ttm_buffer_object *bo)
> > * ttm_bo_util.c
> > */
> >
> > -int ttm_mem_io_reserve(struct ttm_bo_device *bdev,
> > +int ttm_mem_io_reserve(struct ttm_device *bdev,
> > struct ttm_resource *mem);
> > -void ttm_mem_io_free(struct ttm_bo_device *bdev,
> > +void ttm_mem_io_free(struct ttm_device *bdev,
> > struct ttm_resource *mem);
> > /**
> > * ttm_bo_move_ttm
> > @@ -706,7 +365,7 @@ void ttm_bo_tt_destroy(struct ttm_buffer_object *bo);
> > * Initialise a generic range manager for the selected memory type.
> > * The range manager is installed for this device in the type slot.
> > */
> > -int ttm_range_man_init(struct ttm_bo_device *bdev,
> > +int ttm_range_man_init(struct ttm_device *bdev,
> > unsigned type, bool use_tt,
> > unsigned long p_size);
> >
> > @@ -718,7 +377,7 @@ int ttm_range_man_init(struct ttm_bo_device *bdev,
> > *
> > * Remove the generic range manager from a slot and tear it down.
> > */
> > -int ttm_range_man_fini(struct ttm_bo_device *bdev,
> > +int ttm_range_man_fini(struct ttm_device *bdev,
> > unsigned type);
> >
> > #endif
> > diff --git a/include/drm/ttm/ttm_device.h b/include/drm/ttm/ttm_device.h
> > new file mode 100644
> > index 000000000000..75fedd378e8f
> > --- /dev/null
> > +++ b/include/drm/ttm/ttm_device.h
> > @@ -0,0 +1,366 @@
> > +/*
> > + * Copyright 2020 Advanced Micro Devices, Inc.
> > + *
> > + * Permission is hereby granted, free of charge, to any person obtaining a
> > + * copy of this software and associated documentation files (the "Software"),
> > + * to deal in the Software without restriction, including without limitation
> > + * the rights to use, copy, modify, merge, publish, distribute, sublicense,
> > + * and/or sell copies of the Software, and to permit persons to whom the
> > + * Software is furnished to do so, subject to the following conditions:
> > + *
> > + * The above copyright notice and this permission notice shall be included in
> > + * all copies or substantial portions of the Software.
> > + *
> > + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> > + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> > + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
> > + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
> > + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> > + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
> > + * OTHER DEALINGS IN THE SOFTWARE.
> > + *
> > + * Authors: Christian König
> > + */
> > +
> > +#ifndef _TTM_DEVICE_H_
> > +#define _TTM_DEVICE_H_
> > +
> > +#include <linux/types.h>
> > +#include <linux/workqueue.h>
> > +#include <drm/ttm/ttm_resource.h>
> > +
> > +#define TTM_NUM_MEM_TYPES 8
> > +
> > +struct ttm_device;
> > +struct ttm_resource;
> > +struct ttm_placement;
> > +struct ttm_buffer_object;
> > +struct ttm_operation_ctx;
> > +
> > +/**
> > + * struct ttm_bo_global - Buffer object driver global data.
> > + *
> > + * @dummy_read_page: Pointer to a dummy page used for mapping requests
> > + * of unpopulated pages.
> > + * @shrink: A shrink callback object used for buffer object swap.
> > + * @device_list_mutex: Mutex protecting the device list.
> > + * This mutex is held while traversing the device list for pm options.
> > + * @lru_lock: Spinlock protecting the bo subsystem lru lists.
> > + * @device_list: List of buffer object devices.
> > + * @swap_lru: Lru list of buffer objects used for swapping.
> > + */
> > +extern struct ttm_global {
> > +
> > + /**
> > + * Constant after init.
> > + */
> > +
> > + struct kobject kobj;
> > + struct page *dummy_read_page;
> > + spinlock_t lru_lock;
> > +
> > + /**
> > + * Protected by ttm_global_mutex.
> > + */
> > + struct list_head device_list;
> > +
> > + /**
> > + * Protected by the lru_lock.
> > + */
> > + struct list_head swap_lru[TTM_MAX_BO_PRIORITY];
> > +
> > + /**
> > + * Internal protection.
> > + */
> > + atomic_t bo_count;
> > +} ttm_glob;
> > +
> > +struct ttm_device_funcs {
> > + /**
> > + * ttm_tt_create
> > + *
> > + * @bo: The buffer object to create the ttm for.
> > + * @page_flags: Page flags as identified by TTM_PAGE_FLAG_XX flags.
> > + *
> > + * Create a struct ttm_tt to back data with system memory pages.
> > + * No pages are actually allocated.
> > + * Returns:
> > + * NULL: Out of memory.
> > + */
> > + struct ttm_tt *(*ttm_tt_create)(struct ttm_buffer_object *bo,
> > + uint32_t page_flags);
> > +
> > + /**
> > + * ttm_tt_populate
> > + *
> > + * @ttm: The struct ttm_tt to contain the backing pages.
> > + *
> > + * Allocate all backing pages
> > + * Returns:
> > + * -ENOMEM: Out of memory.
> > + */
> > + int (*ttm_tt_populate)(struct ttm_device *bdev,
> > + struct ttm_tt *ttm,
> > + struct ttm_operation_ctx *ctx);
> > +
> > + /**
> > + * ttm_tt_unpopulate
> > + *
> > + * @ttm: The struct ttm_tt to contain the backing pages.
> > + *
> > + * Free all backing page
> > + */
> > + void (*ttm_tt_unpopulate)(struct ttm_device *bdev,
> > + struct ttm_tt *ttm);
> > +
> > + /**
> > + * ttm_tt_bind
> > + *
> > + * @bdev: Pointer to a ttm device
> > + * @ttm: Pointer to a struct ttm_tt.
> > + * @bo_mem: Pointer to a struct ttm_resource describing the
> > + * memory type and location for binding.
> > + *
> > + * Bind the backend pages into the aperture in the location
> > + * indicated by @bo_mem. This function should be able to handle
> > + * differences between aperture and system page sizes.
> > + */
> > + int (*ttm_tt_bind)(struct ttm_device *bdev, struct ttm_tt *ttm,
> > + struct ttm_resource *bo_mem);
> > +
> > + /**
> > + * ttm_tt_unbind
> > + *
> > + * @bdev: Pointer to a ttm device
> > + * @ttm: Pointer to a struct ttm_tt.
> > + *
> > + * Unbind previously bound backend pages. This function should be
> > + * able to handle differences between aperture and system page sizes.
> > + */
> > + void (*ttm_tt_unbind)(struct ttm_device *bdev, struct ttm_tt *ttm);
> > +
> > + /**
> > + * ttm_tt_destroy
> > + *
> > + * @bdev: Pointer to a ttm device
> > + * @ttm: Pointer to a struct ttm_tt.
> > + *
> > + * Destroy the backend. This will be call back from ttm_tt_destroy so
> > + * don't call ttm_tt_destroy from the callback or infinite loop.
> > + */
> > + void (*ttm_tt_destroy)(struct ttm_device *bdev, struct ttm_tt *ttm);
> > +
> > + /**
> > + * struct ttm_bo_driver member eviction_valuable
> > + *
> > + * @bo: the buffer object to be evicted
> > + * @place: placement we need room for
> > + *
> > + * Check with the driver if it is valuable to evict a BO to make room
> > + * for a certain placement.
> > + */
> > + bool (*eviction_valuable)(struct ttm_buffer_object *bo,
> > + const struct ttm_place *place);
> > + /**
> > + * struct ttm_bo_driver member evict_flags:
> > + *
> > + * @bo: the buffer object to be evicted
> > + *
> > + * Return the bo flags for a buffer which is not mapped to the hardware.
> > + * These will be placed in proposed_flags so that when the move is
> > + * finished, they'll end up in bo->mem.flags
> > + */
> > +
> > + void (*evict_flags)(struct ttm_buffer_object *bo,
> > + struct ttm_placement *placement);
> > +
> > + /**
> > + * struct ttm_bo_driver member move:
> > + *
> > + * @bo: the buffer to move
> > + * @evict: whether this motion is evicting the buffer from
> > + * the graphics address space
> > + * @ctx: context for this move with parameters
> > + * @new_mem: the new memory region receiving the buffer
> > + *
> > + * Move a buffer between two memory regions.
> > + */
> > + int (*move)(struct ttm_buffer_object *bo, bool evict,
> > + struct ttm_operation_ctx *ctx,
> > + struct ttm_resource *new_mem);
> > +
> > + /**
> > + * struct ttm_bo_driver_member verify_access
> > + *
> > + * @bo: Pointer to a buffer object.
> > + * @filp: Pointer to a struct file trying to access the object.
> > + *
> > + * Called from the map / write / read methods to verify that the
> > + * caller is permitted to access the buffer object.
> > + * This member may be set to NULL, which will refuse this kind of
> > + * access for all buffer objects.
> > + * This function should return 0 if access is granted, -EPERM otherwise.
> > + */
> > + int (*verify_access)(struct ttm_buffer_object *bo,
> > + struct file *filp);
> > +
> > + /**
> > + * Hook to notify driver about a driver move so it
> > + * can do tiling things and book-keeping.
> > + *
> > + * @evict: whether this move is evicting the buffer from the graphics
> > + * address space
> > + */
> > + void (*move_notify)(struct ttm_buffer_object *bo,
> > + bool evict,
> > + struct ttm_resource *new_mem);
> > +
> > + /**
> > + * notify the driver that we're about to swap out this bo
> > + */
> > + void (*swap_notify)(struct ttm_buffer_object *bo);
> > +
> > + /**
> > + * Driver callback on when mapping io memory (for bo_move_memcpy
> > + * for instance). TTM will take care to call io_mem_free whenever
> > + * the mapping is not use anymore. io_mem_reserve & io_mem_free
> > + * are balanced.
> > + */
> > + int (*io_mem_reserve)(struct ttm_device *bdev,
> > + struct ttm_resource *mem);
> > + void (*io_mem_free)(struct ttm_device *bdev,
> > + struct ttm_resource *mem);
> > +
> > + /**
> > + * Return the pfn for a given page_offset inside the BO.
> > + *
> > + * @bo: the BO to look up the pfn for
> > + * @page_offset: the offset to look up
> > + */
> > + unsigned long (*io_mem_pfn)(struct ttm_buffer_object *bo,
> > + unsigned long page_offset);
> > +
> > + /**
> > + * Read/write memory buffers for ptrace access
> > + *
> > + * @bo: the BO to access
> > + * @offset: the offset from the start of the BO
> > + * @buf: pointer to source/destination buffer
> > + * @len: number of bytes to copy
> > + * @write: whether to read (0) from or write (non-0) to BO
> > + *
> > + * If successful, this function should return the number of
> > + * bytes copied, -EIO otherwise. If the number of bytes
> > + * returned is < len, the function may be called again with
> > + * the remainder of the buffer to copy.
> > + */
> > + int (*access_memory)(struct ttm_buffer_object *bo, unsigned long offset,
> > + void *buf, int len, int write);
> > +
> > + /**
> > + * struct ttm_bo_driver member del_from_lru_notify
> > + *
> > + * @bo: the buffer object deleted from lru
> > + *
> > + * notify driver that a BO was deleted from LRU.
> > + */
> > + void (*del_from_lru_notify)(struct ttm_buffer_object *bo);
> > +
> > + /**
> > + * Notify the driver that we're about to release a BO
> > + *
> > + * @bo: BO that is about to be released
> > + *
> > + * Gives the driver a chance to do any cleanup, including
> > + * adding fences that may force a delayed delete
> > + */
> > + void (*release_notify)(struct ttm_buffer_object *bo);
> > +};
> > +
> > +/**
> > + * struct ttm_device - Buffer object driver device-specific data.
> > + *
> > + * @driver: Pointer to a struct ttm_bo_driver struct setup by the driver.
> > + * @man: An array of resource_managers.
> > + * @vma_manager: Address space manager (pointer)
> > + * lru_lock: Spinlock that protects the buffer+device lru lists and
> > + * ddestroy lists.
> > + * @dev_mapping: A pointer to the struct address_space representing the
> > + * device address space.
> > + * @wq: Work queue structure for the delayed delete workqueue.
> > + * @no_retry: Don't retry allocation if it fails
> > + *
> > + */
> > +struct ttm_device {
> > +
> > + /*
> > + * Constant after bo device init / atomic.
> > + */
> > + struct list_head device_list;
> > + struct ttm_device_funcs *funcs;
> > +
> > + /*
> > + * access via ttm_manager_type.
> > + */
> > + struct ttm_resource_manager sysman;
> > + struct ttm_resource_manager *man_drv[TTM_NUM_MEM_TYPES];
> > +
> > + /*
> > + * Protected by internal locks.
> > + */
> > + struct drm_vma_offset_manager *vma_manager;
> > +
> > + /*
> > + * Protected by the global:lru lock.
> > + */
> > + struct list_head ddestroy;
> > +
> > + /*
> > + * Protected by load / firstopen / lastclose /unload sync.
> > + */
> > +
> > + struct address_space *dev_mapping;
> > +
> > + /*
> > + * Internal protection.
> > + */
> > +
> > + struct delayed_work wq;
> > +
> > + bool need_dma32;
> > + bool no_retry;
> > +};
> > +
> > +static inline struct ttm_resource_manager *
> > +ttm_manager_type(struct ttm_device *bdev, int mem_type)
> > +{
> > + return bdev->man_drv[mem_type];
> > +}
> > +
> > +static inline void
> > +ttm_set_driver_manager(struct ttm_device *bdev, int type,
> > + struct ttm_resource_manager *manager)
> > +{
> > + bdev->man_drv[type] = manager;
> > +}
> > +
> > +/**
> > + * ttm_device_init
> > + *
> > + * @bdev: A pointer to a struct ttm_device to initialize.
> > + * @funcs: A pointer to a struct ttm_bo_driver set up by the caller.
> > + * @mapping: The address space to use for this bo.
> > + * @vma_manager: A pointer to a vma manager.
> > + * @need_dma32: if page allocations should use DMA32
> > + *
> > + * Initializes a struct ttm_device:
> > + * Returns:
> > + * !0: Failure.
> > + */
> > +int ttm_device_init(struct ttm_device *bdev, struct ttm_device_funcs *funcs,
> > + struct address_space *mapping,
> > + struct drm_vma_offset_manager *vma_manager,
> > + bool need_dma32);
> > +int ttm_device_release(struct ttm_device *bdev);
> > +
> > +#endif
> > diff --git a/include/drm/ttm/ttm_resource.h b/include/drm/ttm/ttm_resource.h
> > index 91b67cecc6b6..a60ffe409b60 100644
> > --- a/include/drm/ttm/ttm_resource.h
> > +++ b/include/drm/ttm/ttm_resource.h
> > @@ -33,7 +33,7 @@
> >
> > #define TTM_MAX_BO_PRIORITY 4U
> >
> > -struct ttm_bo_device;
> > +struct ttm_device;
> > struct ttm_resource_manager;
> > struct ttm_resource;
> > struct ttm_place;
> > @@ -230,7 +230,7 @@ void ttm_resource_free(struct ttm_buffer_object *bo, struct ttm_resource *res);
> > void ttm_resource_manager_init(struct ttm_resource_manager *man,
> > unsigned long p_size);
> >
> > -int ttm_resource_manager_force_list_clean(struct ttm_bo_device *bdev,
> > +int ttm_resource_manager_force_list_clean(struct ttm_device *bdev,
> > struct ttm_resource_manager *man);
> >
> > void ttm_resource_manager_debug(struct ttm_resource_manager *man,
> > diff --git a/include/drm/ttm/ttm_tt.h b/include/drm/ttm/ttm_tt.h
> > index e042dec5e6c1..a56067819a58 100644
> > --- a/include/drm/ttm/ttm_tt.h
> > +++ b/include/drm/ttm/ttm_tt.h
> > @@ -48,7 +48,7 @@ struct ttm_operation_ctx;
> > *
> > * @pages: Array of pages backing the data.
> > * @num_pages: Number of pages in the page array.
> > - * @bdev: Pointer to the current struct ttm_bo_device.
> > + * @bdev: Pointer to the current struct ttm_device.
> > * @be: Pointer to the ttm backend.
> > * @swap_storage: Pointer to shmem struct file for swap storage.
> > * @caching_state: The current caching state of the pages.
> > @@ -147,14 +147,14 @@ void ttm_dma_tt_fini(struct ttm_dma_tt *ttm_dma);
> > *
> > * Unbind, unpopulate and destroy common struct ttm_tt.
> > */
> > -void ttm_tt_destroy(struct ttm_bo_device *bdev, struct ttm_tt *ttm);
> > +void ttm_tt_destroy(struct ttm_device *bdev, struct ttm_tt *ttm);
> >
> > /**
> > * ttm_tt_destroy_common:
> > *
> > * Called from driver to destroy common path.
> > */
> > -void ttm_tt_destroy_common(struct ttm_bo_device *bdev, struct ttm_tt *ttm);
> > +void ttm_tt_destroy_common(struct ttm_device *bdev, struct ttm_tt *ttm);
> >
> > /**
> > * ttm_tt_swapin:
> > @@ -164,7 +164,7 @@ void ttm_tt_destroy_common(struct ttm_bo_device *bdev, struct ttm_tt *ttm);
> > * Swap in a previously swap out ttm_tt.
> > */
> > int ttm_tt_swapin(struct ttm_tt *ttm);
> > -int ttm_tt_swapout(struct ttm_bo_device *bdev, struct ttm_tt *ttm);
> > +int ttm_tt_swapout(struct ttm_device *bdev, struct ttm_tt *ttm);
> >
> > /**
> > * ttm_tt_populate - allocate pages for a ttm
> > @@ -173,7 +173,7 @@ int ttm_tt_swapout(struct ttm_bo_device *bdev, struct ttm_tt *ttm);
> > *
> > * Calls the driver method to allocate pages for a ttm
> > */
> > -int ttm_tt_populate(struct ttm_bo_device *bdev, struct ttm_tt *ttm, struct ttm_operation_ctx *ctx);
> > +int ttm_tt_populate(struct ttm_device *bdev, struct ttm_tt *ttm, struct ttm_operation_ctx *ctx);
> >
> > /**
> > * ttm_tt_unpopulate - free pages from a ttm
> > @@ -182,7 +182,7 @@ int ttm_tt_populate(struct ttm_bo_device *bdev, struct ttm_tt *ttm, struct ttm_o
> > *
> > * Calls the driver method to free all pages from a ttm
> > */
> > -void ttm_tt_unpopulate(struct ttm_bo_device *bdev, struct ttm_tt *ttm);
> > +void ttm_tt_unpopulate(struct ttm_device *bdev, struct ttm_tt *ttm);
> >
> > #if IS_ENABLED(CONFIG_AGP)
> > #include <linux/agp_backend.h>
> > --
> > 2.17.1
> >
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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