drm/ttm: initialize globals during device init (v2)

Make sure that the global BO state is always correctly initialized.

This allows removing all the device code to initialize it.

v2: fix up vbox (Alex)

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index fda252022b1508ff7b26b50f94841b3af6a3937b..31fe85dd0b50983cd50a1a58bce2d28aaf6f9158 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -61,56 +61,6 @@ static int amdgpu_map_buffer(struct ttm_buffer_object *bo,
 static int amdgpu_ttm_debugfs_init(struct amdgpu_device *adev);
 static void amdgpu_ttm_debugfs_fini(struct amdgpu_device *adev);
 
-/*
- * Global memory.
- */
-
-/**
- * amdgpu_ttm_global_init - Initialize global TTM memory reference structures.
- *
- * @adev: AMDGPU device for which the global structures need to be registered.
- *
- * This is called as part of the AMDGPU ttm init from amdgpu_ttm_init()
- * during bring up.
- */
-static int amdgpu_ttm_global_init(struct amdgpu_device *adev)
-{
-       struct drm_global_reference *global_ref;
-       int r;
-
-       /* ensure reference is false in case init fails */
-       adev->mman.mem_global_referenced = false;
-
-       global_ref = &adev->mman.bo_global_ref.ref;
-       global_ref->global_type = DRM_GLOBAL_TTM_BO;
-       global_ref->size = sizeof(struct ttm_bo_global);
-       global_ref->init = &ttm_bo_global_ref_init;
-       global_ref->release = &ttm_bo_global_ref_release;
-       r = drm_global_item_ref(global_ref);
-       if (r) {
-               DRM_ERROR("Failed setting up TTM BO subsystem.\n");
-               goto error_bo;
-       }
-
-       mutex_init(&adev->mman.gtt_window_lock);
-
-       adev->mman.mem_global_referenced = true;
-
-       return 0;
-
-error_bo:
-       return r;
-}
-
-static void amdgpu_ttm_global_fini(struct amdgpu_device *adev)
-{
-       if (adev->mman.mem_global_referenced) {
-               mutex_destroy(&adev->mman.gtt_window_lock);
-               drm_global_item_unref(&adev->mman.bo_global_ref.ref);
-               adev->mman.mem_global_referenced = false;
-       }
-}
-
 static int amdgpu_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags)
 {
        return 0;
@@ -1714,14 +1664,10 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
        int r;
        u64 vis_vram_limit;
 
-       /* initialize global references for vram/gtt */
-       r = amdgpu_ttm_global_init(adev);
-       if (r) {
-               return r;
-       }
+       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,
-                              adev->mman.bo_global_ref.ref.object,
                               &amdgpu_bo_driver,
                               adev->ddev->anon_inode->i_mapping,
                               DRM_FILE_PAGE_OFFSET,
@@ -1878,7 +1824,6 @@ void amdgpu_ttm_fini(struct amdgpu_device *adev)
        ttm_bo_clean_mm(&adev->mman.bdev, AMDGPU_PL_GWS);
        ttm_bo_clean_mm(&adev->mman.bdev, AMDGPU_PL_OA);
        ttm_bo_device_release(&adev->mman.bdev);
-       amdgpu_ttm_global_fini(adev);
        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 e114f209b701b24357367f9b2efd134379080260..b5b2d101f7db295bc36d7dd2493fbb95e0716d2e 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
@@ -39,7 +39,6 @@
 #define AMDGPU_GTT_NUM_TRANSFER_WINDOWS        2
 
 struct amdgpu_mman {
-       struct ttm_bo_global_ref        bo_global_ref;
        struct ttm_bo_device            bdev;
        bool                            mem_global_referenced;
        bool                            initialized;

diff --git a/drivers/gpu/drm/ast/ast_drv.h b/drivers/gpu/drm/ast/ast_drv.h
index 6ae11a4776431b36cb206ea0e8a976278cfe0f72..bfc65040dfcbf702c4420f75105cce38be77254a 100644 (file)
--- a/drivers/gpu/drm/ast/ast_drv.h
+++ b/drivers/gpu/drm/ast/ast_drv.h
@@ -104,7 +104,6 @@ struct ast_private {
        int fb_mtrr;
 
        struct {
-               struct ttm_bo_global_ref bo_global_ref;
                struct ttm_bo_device bdev;
        } ttm;
 

diff --git a/drivers/gpu/drm/ast/ast_ttm.c b/drivers/gpu/drm/ast/ast_ttm.c
index 8a59d6fc11608db95407bad6a43b041eb17bbb45..c168d62fe8f9742e280fa287d38fe79a8c98554f 100644 (file)
--- a/drivers/gpu/drm/ast/ast_ttm.c
+++ b/drivers/gpu/drm/ast/ast_ttm.c
@@ -36,35 +36,6 @@ ast_bdev(struct ttm_bo_device *bd)
        return container_of(bd, struct ast_private, ttm.bdev);
 }
 
-static int ast_ttm_global_init(struct ast_private *ast)
-{
-       struct drm_global_reference *global_ref;
-       int r;
-
-       global_ref = &ast->ttm.bo_global_ref.ref;
-       global_ref->global_type = DRM_GLOBAL_TTM_BO;
-       global_ref->size = sizeof(struct ttm_bo_global);
-       global_ref->init = &ttm_bo_global_ref_init;
-       global_ref->release = &ttm_bo_global_ref_release;
-       r = drm_global_item_ref(global_ref);
-       if (r != 0) {
-               DRM_ERROR("Failed setting up TTM BO subsystem.\n");
-               return r;
-       }
-       return 0;
-}
-
-static void
-ast_ttm_global_release(struct ast_private *ast)
-{
-       if (ast->ttm.bo_global_ref.ref.release == NULL)
-               return;
-
-       drm_global_item_unref(&ast->ttm.bo_global_ref.ref);
-       ast->ttm.bo_global_ref.ref.release = NULL;
-}
-
-
 static void ast_bo_ttm_destroy(struct ttm_buffer_object *tbo)
 {
        struct ast_bo *bo;
@@ -204,12 +175,7 @@ int ast_mm_init(struct ast_private *ast)
        struct drm_device *dev = ast->dev;
        struct ttm_bo_device *bdev = &ast->ttm.bdev;
 
-       ret = ast_ttm_global_init(ast);
-       if (ret)
-               return ret;
-
        ret = ttm_bo_device_init(&ast->ttm.bdev,
-                                ast->ttm.bo_global_ref.ref.object,
                                 &ast_bo_driver,
                                 dev->anon_inode->i_mapping,
                                 DRM_FILE_PAGE_OFFSET,
@@ -240,8 +206,6 @@ void ast_mm_fini(struct ast_private *ast)
 
        ttm_bo_device_release(&ast->ttm.bdev);
 
-       ast_ttm_global_release(ast);
-
        arch_phys_wc_del(ast->fb_mtrr);
        arch_io_free_memtype_wc(pci_resource_start(dev->pdev, 0),
                                pci_resource_len(dev->pdev, 0));

diff --git a/drivers/gpu/drm/bochs/bochs.h b/drivers/gpu/drm/bochs/bochs.h
index a035257d1b56c429acb420960d6531e37c1e06f6..75e4cf6cda5db98e50cf454c3c8364d3d32e1274 100644 (file)
--- a/drivers/gpu/drm/bochs/bochs.h
+++ b/drivers/gpu/drm/bochs/bochs.h
@@ -76,7 +76,6 @@ struct bochs_device {
 
        /* ttm */
        struct {
-               struct ttm_bo_global_ref bo_global_ref;
                struct ttm_bo_device bdev;
                bool initialized;
        } ttm;

diff --git a/drivers/gpu/drm/bochs/bochs_mm.c b/drivers/gpu/drm/bochs/bochs_mm.c
index c697d456656fd0fc2486e56dae6542f1d5f4dda3..3bd773ef78dd72a3b2a2017fef03d907b8a35235 100644 (file)
--- a/drivers/gpu/drm/bochs/bochs_mm.c
+++ b/drivers/gpu/drm/bochs/bochs_mm.c
@@ -16,35 +16,6 @@ static inline struct bochs_device *bochs_bdev(struct ttm_bo_device *bd)
        return container_of(bd, struct bochs_device, ttm.bdev);
 }
 
-static int bochs_ttm_global_init(struct bochs_device *bochs)
-{
-       struct drm_global_reference *global_ref;
-       int r;
-
-       global_ref = &bochs->ttm.bo_global_ref.ref;
-       global_ref->global_type = DRM_GLOBAL_TTM_BO;
-       global_ref->size = sizeof(struct ttm_bo_global);
-       global_ref->init = &ttm_bo_global_ref_init;
-       global_ref->release = &ttm_bo_global_ref_release;
-       r = drm_global_item_ref(global_ref);
-       if (r != 0) {
-               DRM_ERROR("Failed setting up TTM BO subsystem.\n");
-               return r;
-       }
-
-       return 0;
-}
-
-static void bochs_ttm_global_release(struct bochs_device *bochs)
-{
-       if (bochs->ttm.bo_global_ref.ref.release == NULL)
-               return;
-
-       drm_global_item_unref(&bochs->ttm.bo_global_ref.ref);
-       bochs->ttm.bo_global_ref.ref.release = NULL;
-}
-
-
 static void bochs_bo_ttm_destroy(struct ttm_buffer_object *tbo)
 {
        struct bochs_bo *bo;
@@ -182,12 +153,7 @@ int bochs_mm_init(struct bochs_device *bochs)
        struct ttm_bo_device *bdev = &bochs->ttm.bdev;
        int ret;
 
-       ret = bochs_ttm_global_init(bochs);
-       if (ret)
-               return ret;
-
        ret = ttm_bo_device_init(&bochs->ttm.bdev,
-                                bochs->ttm.bo_global_ref.ref.object,
                                 &bochs_bo_driver,
                                 bochs->dev->anon_inode->i_mapping,
                                 DRM_FILE_PAGE_OFFSET,
@@ -214,7 +180,6 @@ void bochs_mm_fini(struct bochs_device *bochs)
                return;
 
        ttm_bo_device_release(&bochs->ttm.bdev);
-       bochs_ttm_global_release(bochs);
        bochs->ttm.initialized = false;
 }
 

diff --git a/drivers/gpu/drm/cirrus/cirrus_drv.h b/drivers/gpu/drm/cirrus/cirrus_drv.h
index 01852fbda9daec266fe3e80da1db2111944ffada..f2b2e0d169fabb73a8c55a6ab459720799a682cf 100644 (file)
--- a/drivers/gpu/drm/cirrus/cirrus_drv.h
+++ b/drivers/gpu/drm/cirrus/cirrus_drv.h
@@ -136,7 +136,6 @@ struct cirrus_device {
        int fb_mtrr;
 
        struct {
-               struct ttm_bo_global_ref bo_global_ref;
                struct ttm_bo_device bdev;
        } ttm;
        bool mm_inited;

diff --git a/drivers/gpu/drm/cirrus/cirrus_ttm.c b/drivers/gpu/drm/cirrus/cirrus_ttm.c
index 7801c56c3c9b47f97c315cdef2e448e4999ad10d..e075810b4bd4063af7334d0543123c28c44198a9 100644 (file)
--- a/drivers/gpu/drm/cirrus/cirrus_ttm.c
+++ b/drivers/gpu/drm/cirrus/cirrus_ttm.c
@@ -36,35 +36,6 @@ cirrus_bdev(struct ttm_bo_device *bd)
        return container_of(bd, struct cirrus_device, ttm.bdev);
 }
 
-static int cirrus_ttm_global_init(struct cirrus_device *cirrus)
-{
-       struct drm_global_reference *global_ref;
-       int r;
-
-       global_ref = &cirrus->ttm.bo_global_ref.ref;
-       global_ref->global_type = DRM_GLOBAL_TTM_BO;
-       global_ref->size = sizeof(struct ttm_bo_global);
-       global_ref->init = &ttm_bo_global_ref_init;
-       global_ref->release = &ttm_bo_global_ref_release;
-       r = drm_global_item_ref(global_ref);
-       if (r != 0) {
-               DRM_ERROR("Failed setting up TTM BO subsystem.\n");
-               return r;
-       }
-       return 0;
-}
-
-static void
-cirrus_ttm_global_release(struct cirrus_device *cirrus)
-{
-       if (cirrus->ttm.bo_global_ref.ref.release == NULL)
-               return;
-
-       drm_global_item_unref(&cirrus->ttm.bo_global_ref.ref);
-       cirrus->ttm.bo_global_ref.ref.release = NULL;
-}
-
-
 static void cirrus_bo_ttm_destroy(struct ttm_buffer_object *tbo)
 {
        struct cirrus_bo *bo;
@@ -204,12 +175,7 @@ int cirrus_mm_init(struct cirrus_device *cirrus)
        struct drm_device *dev = cirrus->dev;
        struct ttm_bo_device *bdev = &cirrus->ttm.bdev;
 
-       ret = cirrus_ttm_global_init(cirrus);
-       if (ret)
-               return ret;
-
        ret = ttm_bo_device_init(&cirrus->ttm.bdev,
-                                cirrus->ttm.bo_global_ref.ref.object,
                                 &cirrus_bo_driver,
                                 dev->anon_inode->i_mapping,
                                 DRM_FILE_PAGE_OFFSET,
@@ -245,8 +211,6 @@ void cirrus_mm_fini(struct cirrus_device *cirrus)
 
        ttm_bo_device_release(&cirrus->ttm.bdev);
 
-       cirrus_ttm_global_release(cirrus);
-
        arch_phys_wc_del(cirrus->fb_mtrr);
        cirrus->fb_mtrr = 0;
        arch_io_free_memtype_wc(pci_resource_start(dev->pdev, 0),

diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
index 60479502e277c3ac0ebc57edc152119a71aa483d..3c168ae77b0cdf537222ae48c3c383b15533995a 100644 (file)
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h
@@ -49,7 +49,6 @@ struct hibmc_drm_private {
        bool mode_config_initialized;
 
        /* ttm */
-       struct ttm_bo_global_ref bo_global_ref;
        struct ttm_bo_device bdev;
        bool initialized;
 

diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c
index 14071c849121650104408d40f50a3f5260ed15ac..dd383267884cfe46fd00f5149464dc0efbff59c6 100644 (file)
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c
@@ -29,32 +29,6 @@ hibmc_bdev(struct ttm_bo_device *bd)
        return container_of(bd, struct hibmc_drm_private, bdev);
 }
 
-static int hibmc_ttm_global_init(struct hibmc_drm_private *hibmc)
-{
-       int ret;
-
-       hibmc->bo_global_ref.ref.global_type = DRM_GLOBAL_TTM_BO;
-       hibmc->bo_global_ref.ref.size = sizeof(struct ttm_bo_global);
-       hibmc->bo_global_ref.ref.init = &ttm_bo_global_ref_init;
-       hibmc->bo_global_ref.ref.release = &ttm_bo_global_ref_release;
-       ret = drm_global_item_ref(&hibmc->bo_global_ref.ref);
-       if (ret) {
-               DRM_ERROR("failed setting up TTM BO subsystem: %d\n", ret);
-               return ret;
-       }
-       return 0;
-}
-
-static void
-hibmc_ttm_global_release(struct hibmc_drm_private *hibmc)
-{
-       if (hibmc->bo_global_ref.ref.release == NULL)
-               return;
-
-       drm_global_item_unref(&hibmc->bo_global_ref.ref);
-       hibmc->bo_global_ref.ref.release = NULL;
-}
-
 static void hibmc_bo_ttm_destroy(struct ttm_buffer_object *tbo)
 {
        struct hibmc_bo *bo = container_of(tbo, struct hibmc_bo, bo);
@@ -214,18 +188,12 @@ int hibmc_mm_init(struct hibmc_drm_private *hibmc)
        struct drm_device *dev = hibmc->dev;
        struct ttm_bo_device *bdev = &hibmc->bdev;
 
-       ret = hibmc_ttm_global_init(hibmc);
-       if (ret)
-               return ret;
-
        ret = ttm_bo_device_init(&hibmc->bdev,
-                                hibmc->bo_global_ref.ref.object,
                                 &hibmc_bo_driver,
                                 dev->anon_inode->i_mapping,
                                 DRM_FILE_PAGE_OFFSET,
                                 true);
        if (ret) {
-               hibmc_ttm_global_release(hibmc);
                DRM_ERROR("error initializing bo driver: %d\n", ret);
                return ret;
        }
@@ -233,7 +201,6 @@ int hibmc_mm_init(struct hibmc_drm_private *hibmc)
        ret = ttm_bo_init_mm(bdev, TTM_PL_VRAM,
                             hibmc->fb_size >> PAGE_SHIFT);
        if (ret) {
-               hibmc_ttm_global_release(hibmc);
                DRM_ERROR("failed ttm VRAM init: %d\n", ret);
                return ret;
        }
@@ -248,7 +215,6 @@ void hibmc_mm_fini(struct hibmc_drm_private *hibmc)
                return;
 
        ttm_bo_device_release(&hibmc->bdev);
-       hibmc_ttm_global_release(hibmc);
        hibmc->mm_inited = false;
 }
 

diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h
index e5348955a3cc441e2dbd23e91c5c27b6d89d857b..0aaedc5548798ec32dd7133e3041ee8651cd3270 100644 (file)
--- a/drivers/gpu/drm/mgag200/mgag200_drv.h
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.h
@@ -212,7 +212,6 @@ struct mga_device {
        int fb_mtrr;
 
        struct {
-               struct ttm_bo_global_ref bo_global_ref;
                struct ttm_bo_device bdev;
        } ttm;
 

diff --git a/drivers/gpu/drm/mgag200/mgag200_ttm.c b/drivers/gpu/drm/mgag200/mgag200_ttm.c
index 11bdc8121a7d7ecf5db3240f3e04972117591959..d96a9b32455e6f5814e7454f482e62068a557b1f 100644 (file)
--- a/drivers/gpu/drm/mgag200/mgag200_ttm.c
+++ b/drivers/gpu/drm/mgag200/mgag200_ttm.c
@@ -36,35 +36,6 @@ mgag200_bdev(struct ttm_bo_device *bd)
        return container_of(bd, struct mga_device, ttm.bdev);
 }
 
-static int mgag200_ttm_global_init(struct mga_device *ast)
-{
-       struct drm_global_reference *global_ref;
-       int r;
-
-       global_ref = &ast->ttm.bo_global_ref.ref;
-       global_ref->global_type = DRM_GLOBAL_TTM_BO;
-       global_ref->size = sizeof(struct ttm_bo_global);
-       global_ref->init = &ttm_bo_global_ref_init;
-       global_ref->release = &ttm_bo_global_ref_release;
-       r = drm_global_item_ref(global_ref);
-       if (r != 0) {
-               DRM_ERROR("Failed setting up TTM BO subsystem.\n");
-               return r;
-       }
-       return 0;
-}
-
-static void
-mgag200_ttm_global_release(struct mga_device *ast)
-{
-       if (ast->ttm.bo_global_ref.ref.release == NULL)
-               return;
-
-       drm_global_item_unref(&ast->ttm.bo_global_ref.ref);
-       ast->ttm.bo_global_ref.ref.release = NULL;
-}
-
-
 static void mgag200_bo_ttm_destroy(struct ttm_buffer_object *tbo)
 {
        struct mgag200_bo *bo;
@@ -204,12 +175,7 @@ int mgag200_mm_init(struct mga_device *mdev)
        struct drm_device *dev = mdev->dev;
        struct ttm_bo_device *bdev = &mdev->ttm.bdev;
 
-       ret = mgag200_ttm_global_init(mdev);
-       if (ret)
-               return ret;
-
        ret = ttm_bo_device_init(&mdev->ttm.bdev,
-                                mdev->ttm.bo_global_ref.ref.object,
                                 &mgag200_bo_driver,
                                 dev->anon_inode->i_mapping,
                                 DRM_FILE_PAGE_OFFSET,
@@ -240,8 +206,6 @@ void mgag200_mm_fini(struct mga_device *mdev)
 
        ttm_bo_device_release(&mdev->ttm.bdev);
 
-       mgag200_ttm_global_release(mdev);
-
        arch_io_free_memtype_wc(pci_resource_start(dev->pdev, 0),
                                pci_resource_len(dev->pdev, 0));
        arch_phys_wc_del(mdev->fb_mtrr);

diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index 0f3bb1a11fc926c2aa983409a12012f448c3f24a..d20b9ba4b1c1a60d6ab942708479f2fdb15ccaa5 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -146,7 +146,6 @@ struct nouveau_drm {
 
        /* TTM interface support */
        struct {
-               struct ttm_bo_global_ref bo_global_ref;
                struct ttm_bo_device bdev;
                atomic_t validate_sequence;
                int (*move)(struct nouveau_channel *,

diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c
index 69448b02649e5472c5886c54f20e140fecdd1388..1543c2f8d3d3312f267e17c03168fab29370aa77 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_ttm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c
@@ -174,38 +174,6 @@ nouveau_ttm_mmap(struct file *filp, struct vm_area_struct *vma)
        return ttm_bo_mmap(filp, vma, &drm->ttm.bdev);
 }
 
-int
-nouveau_ttm_global_init(struct nouveau_drm *drm)
-{
-       struct drm_global_reference *global_ref;
-       int ret;
-
-       global_ref = &drm->ttm.bo_global_ref.ref;
-       global_ref->global_type = DRM_GLOBAL_TTM_BO;
-       global_ref->size = sizeof(struct ttm_bo_global);
-       global_ref->init = &ttm_bo_global_ref_init;
-       global_ref->release = &ttm_bo_global_ref_release;
-
-       ret = drm_global_item_ref(global_ref);
-       if (unlikely(ret != 0)) {
-               DRM_ERROR("Failed setting up TTM BO subsystem\n");
-               drm->ttm.bo_global_ref.ref.release = NULL;
-               return ret;
-       }
-
-       return 0;
-}
-
-void
-nouveau_ttm_global_release(struct nouveau_drm *drm)
-{
-       if (drm->ttm.bo_global_ref.ref.release == NULL)
-               return;
-
-       drm_global_item_unref(&drm->ttm.bo_global_ref.ref);
-       drm->ttm.bo_global_ref.ref.release = NULL;
-}
-
 static int
 nouveau_ttm_init_host(struct nouveau_drm *drm, u8 kind)
 {
@@ -268,12 +236,7 @@ nouveau_ttm_init(struct nouveau_drm *drm)
                drm->agp.cma = pci->agp.cma;
        }
 
-       ret = nouveau_ttm_global_init(drm);
-       if (ret)
-               return ret;
-
        ret = ttm_bo_device_init(&drm->ttm.bdev,
-                                 drm->ttm.bo_global_ref.ref.object,
                                  &nouveau_bo_driver,
                                  dev->anon_inode->i_mapping,
                                  DRM_FILE_PAGE_OFFSET,
@@ -328,8 +291,6 @@ nouveau_ttm_fini(struct nouveau_drm *drm)
 
        ttm_bo_device_release(&drm->ttm.bdev);
 
-       nouveau_ttm_global_release(drm);
-
        arch_phys_wc_del(drm->ttm.mtrr);
        drm->ttm.mtrr = 0;
        arch_io_free_memtype_wc(device->func->resource_addr(device, 1),

diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
index 52912e54e990acd2e7999d77aa862f7ad17a5dc1..2310d6e9ff1f36b7e1cc5aff3ed6020bd91eed5a 100644 (file)
--- a/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/drivers/gpu/drm/qxl/qxl_drv.h
@@ -127,8 +127,6 @@ struct qxl_output {
 #define drm_encoder_to_qxl_output(x) container_of(x, struct qxl_output, enc)
 
 struct qxl_mman {
-       struct ttm_bo_global_ref        bo_global_ref;
-       bool                            mem_global_referenced;
        struct ttm_bo_device            bdev;
 };
 

diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
index bb8cc9b16780137cdda530a60dbf14c9b7c773c0..1468fddc19d023893a97c0373411597eb1211ee9 100644 (file)
--- a/drivers/gpu/drm/qxl/qxl_ttm.c
+++ b/drivers/gpu/drm/qxl/qxl_ttm.c
@@ -46,34 +46,6 @@ static struct qxl_device *qxl_get_qdev(struct ttm_bo_device *bdev)
        return qdev;
 }
 
-static int qxl_ttm_global_init(struct qxl_device *qdev)
-{
-       struct drm_global_reference *global_ref;
-       int r;
-
-       global_ref = &qdev->mman.bo_global_ref.ref;
-       global_ref->global_type = DRM_GLOBAL_TTM_BO;
-       global_ref->size = sizeof(struct ttm_bo_global);
-       global_ref->init = &ttm_bo_global_ref_init;
-       global_ref->release = &ttm_bo_global_ref_release;
-       r = drm_global_item_ref(global_ref);
-       if (r != 0) {
-               DRM_ERROR("Failed setting up TTM BO subsystem.\n");
-               return r;
-       }
-
-       qdev->mman.mem_global_referenced = true;
-       return 0;
-}
-
-static void qxl_ttm_global_fini(struct qxl_device *qdev)
-{
-       if (qdev->mman.mem_global_referenced) {
-               drm_global_item_unref(&qdev->mman.bo_global_ref.ref);
-               qdev->mman.mem_global_referenced = false;
-       }
-}
-
 static struct vm_operations_struct qxl_ttm_vm_ops;
 static const struct vm_operations_struct *ttm_vm_ops;
 
@@ -345,12 +317,8 @@ int qxl_ttm_init(struct qxl_device *qdev)
        int r;
        int num_io_pages; /* != rom->num_io_pages, we include surface0 */
 
-       r = qxl_ttm_global_init(qdev);
-       if (r)
-               return r;
        /* No others user of address space so set it to 0 */
        r = ttm_bo_device_init(&qdev->mman.bdev,
-                              qdev->mman.bo_global_ref.ref.object,
                               &qxl_bo_driver,
                               qdev->ddev.anon_inode->i_mapping,
                               DRM_FILE_PAGE_OFFSET, 0);
@@ -386,7 +354,6 @@ void qxl_ttm_fini(struct qxl_device *qdev)
        ttm_bo_clean_mm(&qdev->mman.bdev, TTM_PL_VRAM);
        ttm_bo_clean_mm(&qdev->mman.bdev, TTM_PL_PRIV);
        ttm_bo_device_release(&qdev->mman.bdev);
-       qxl_ttm_global_fini(qdev);
        DRM_INFO("qxl: ttm finalized\n");
 }
 

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 06fb952b6290d870a9ce3c63be3ea97718ff1dd6..32808e50be12f815c85178083cc49bf24d16cf89 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -448,9 +448,7 @@ struct radeon_surface_reg {
  * TTM.
  */
 struct radeon_mman {
-       struct ttm_bo_global_ref        bo_global_ref;
        struct ttm_bo_device            bdev;
-       bool                            mem_global_referenced;
        bool                            initialized;
 
 #if defined(CONFIG_DEBUG_FS)

diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 2104429ddbac321e64e0b1b86a2107822a169904..9920a6fc11bf3446f1e1858414d8c25fc9cc2f07 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -60,39 +60,6 @@ static struct radeon_device *radeon_get_rdev(struct ttm_bo_device *bdev)
        return rdev;
 }
 
-
-/*
- * Global memory.
- */
-static int radeon_ttm_global_init(struct radeon_device *rdev)
-{
-       struct drm_global_reference *global_ref;
-       int r;
-
-       rdev->mman.mem_global_referenced = false;
-       global_ref = &rdev->mman.bo_global_ref.ref;
-       global_ref->global_type = DRM_GLOBAL_TTM_BO;
-       global_ref->size = sizeof(struct ttm_bo_global);
-       global_ref->init = &ttm_bo_global_ref_init;
-       global_ref->release = &ttm_bo_global_ref_release;
-       r = drm_global_item_ref(global_ref);
-       if (r != 0) {
-               DRM_ERROR("Failed setting up TTM BO subsystem.\n");
-               return r;
-       }
-
-       rdev->mman.mem_global_referenced = true;
-       return 0;
-}
-
-static void radeon_ttm_global_fini(struct radeon_device *rdev)
-{
-       if (rdev->mman.mem_global_referenced) {
-               drm_global_item_unref(&rdev->mman.bo_global_ref.ref);
-               rdev->mman.mem_global_referenced = false;
-       }
-}
-
 static int radeon_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags)
 {
        return 0;
@@ -821,13 +788,8 @@ int radeon_ttm_init(struct radeon_device *rdev)
 {
        int r;
 
-       r = radeon_ttm_global_init(rdev);
-       if (r) {
-               return r;
-       }
        /* No others user of address space so set it to 0 */
        r = ttm_bo_device_init(&rdev->mman.bdev,
-                              rdev->mman.bo_global_ref.ref.object,
                               &radeon_bo_driver,
                               rdev->ddev->anon_inode->i_mapping,
                               DRM_FILE_PAGE_OFFSET,
@@ -899,7 +861,6 @@ void radeon_ttm_fini(struct radeon_device *rdev)
        ttm_bo_clean_mm(&rdev->mman.bdev, TTM_PL_TT);
        ttm_bo_device_release(&rdev->mman.bdev);
        radeon_gart_fini(rdev);
-       radeon_ttm_global_fini(rdev);
        rdev->mman.initialized = false;
        DRM_INFO("radeon: ttm finalized\n");
 }

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index d89183f955704d04520a820165005d73ba50ffa6..df028805b7e26e0f47fbb0778ec87cf0849af245 100644 (file)
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -1530,7 +1530,7 @@ static void ttm_bo_global_kobj_release(struct kobject *kobj)
        kfree(glob);
 }
 
-void ttm_bo_global_release(void)
+static void ttm_bo_global_release(void)
 {
        struct ttm_bo_global *glob = &ttm_bo_glob;
 
@@ -1544,9 +1544,8 @@ void ttm_bo_global_release(void)
 out:
        mutex_unlock(&ttm_global_mutex);
 }
-EXPORT_SYMBOL(ttm_bo_global_release);
 
-int ttm_bo_global_init(void)
+static int ttm_bo_global_init(void)
 {
        struct ttm_bo_global *glob = &ttm_bo_glob;
        int ret = 0;
@@ -1583,8 +1582,6 @@ out:
        mutex_unlock(&ttm_global_mutex);
        return ret;
 }
-EXPORT_SYMBOL(ttm_bo_global_init);
-
 
 int ttm_bo_device_release(struct ttm_bo_device *bdev)
 {
@@ -1623,18 +1620,25 @@ int ttm_bo_device_release(struct ttm_bo_device *bdev)
 
        drm_vma_offset_manager_destroy(&bdev->vma_manager);
 
+       if (!ret)
+               ttm_bo_global_release();
+
        return ret;
 }
 EXPORT_SYMBOL(ttm_bo_device_release);
 
 int ttm_bo_device_init(struct ttm_bo_device *bdev,
-                      struct ttm_bo_global *glob,
                       struct ttm_bo_driver *driver,
                       struct address_space *mapping,
                       uint64_t file_page_offset,
                       bool need_dma32)
 {
-       int ret = -EINVAL;
+       struct ttm_bo_global *glob = &ttm_bo_glob;
+       int ret;
+
+       ret = ttm_bo_global_init();
+       if (ret)
+               return ret;
 
        bdev->driver = driver;
 
@@ -1661,6 +1665,7 @@ int ttm_bo_device_init(struct ttm_bo_device *bdev,
 
        return 0;
 out_no_sys:
+       ttm_bo_global_release();
        return ret;
 }
 EXPORT_SYMBOL(ttm_bo_device_init);

diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
index d9756b59e329528fe651b7527799ef986fd02eba..1acbf182536f14e95208ad329a659da4888255e1 100644 (file)
--- a/drivers/gpu/drm/virtio/virtgpu_drv.h
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
@@ -142,8 +142,6 @@ struct virtio_gpu_fbdev {
 };
 
 struct virtio_gpu_mman {
-       struct ttm_bo_global_ref        bo_global_ref;
-       bool                            mem_global_referenced;
        struct ttm_bo_device            bdev;
 };
 

diff --git a/drivers/gpu/drm/virtio/virtgpu_ttm.c b/drivers/gpu/drm/virtio/virtgpu_ttm.c
index 8510109e09da6d636ec3f32fa9a88643b6cb80fc..8fc088d5ef0dfd7b70b5a1a44d65d339b0147d02 100644 (file)
--- a/drivers/gpu/drm/virtio/virtgpu_ttm.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ttm.c
@@ -50,35 +50,6 @@ virtio_gpu_device *virtio_gpu_get_vgdev(struct ttm_bo_device *bdev)
        return vgdev;
 }
 
-static int virtio_gpu_ttm_global_init(struct virtio_gpu_device *vgdev)
-{
-       struct drm_global_reference *global_ref;
-       int r;
-
-       vgdev->mman.mem_global_referenced = false;
-       global_ref = &vgdev->mman.bo_global_ref.ref;
-       global_ref->global_type = DRM_GLOBAL_TTM_BO;
-       global_ref->size = sizeof(struct ttm_bo_global);
-       global_ref->init = &ttm_bo_global_ref_init;
-       global_ref->release = &ttm_bo_global_ref_release;
-       r = drm_global_item_ref(global_ref);
-       if (r != 0) {
-               DRM_ERROR("Failed setting up TTM BO subsystem.\n");
-               return r;
-       }
-
-       vgdev->mman.mem_global_referenced = true;
-       return 0;
-}
-
-static void virtio_gpu_ttm_global_fini(struct virtio_gpu_device *vgdev)
-{
-       if (vgdev->mman.mem_global_referenced) {
-               drm_global_item_unref(&vgdev->mman.bo_global_ref.ref);
-               vgdev->mman.mem_global_referenced = false;
-       }
-}
-
 int virtio_gpu_mmap(struct file *filp, struct vm_area_struct *vma)
 {
        struct drm_file *file_priv;
@@ -356,12 +327,8 @@ int virtio_gpu_ttm_init(struct virtio_gpu_device *vgdev)
 {
        int r;
 
-       r = virtio_gpu_ttm_global_init(vgdev);
-       if (r)
-               return r;
        /* No others user of address space so set it to 0 */
        r = ttm_bo_device_init(&vgdev->mman.bdev,
-                              vgdev->mman.bo_global_ref.ref.object,
                               &virtio_gpu_bo_driver,
                               vgdev->ddev->anon_inode->i_mapping,
                               DRM_FILE_PAGE_OFFSET, 0);
@@ -380,13 +347,11 @@ int virtio_gpu_ttm_init(struct virtio_gpu_device *vgdev)
 err_mm_init:
        ttm_bo_device_release(&vgdev->mman.bdev);
 err_dev_init:
-       virtio_gpu_ttm_global_fini(vgdev);
        return r;
 }
 
 void virtio_gpu_ttm_fini(struct virtio_gpu_device *vgdev)
 {
        ttm_bo_device_release(&vgdev->mman.bdev);
-       virtio_gpu_ttm_global_fini(vgdev);
        DRM_INFO("virtio_gpu: ttm finalized\n");
 }

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 67494148accd6f4ee119936e9427301f23eb4d54..b9c078860a7c20d677dbba5a0d29f8c258b8127f 100644 (file)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -801,11 +801,6 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
        DRM_INFO("MMIO at 0x%08x size is %u kiB\n",
                 dev_priv->mmio_start, dev_priv->mmio_size / 1024);
 
-       ret = vmw_ttm_global_init(dev_priv);
-       if (unlikely(ret != 0))
-               goto out_err0;
-
-
        vmw_master_init(&dev_priv->fbdev_master);
        ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
        dev_priv->active_master = &dev_priv->fbdev_master;
@@ -816,7 +811,7 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
        if (unlikely(dev_priv->mmio_virt == NULL)) {
                ret = -ENOMEM;
                DRM_ERROR("Failed mapping MMIO.\n");
-               goto out_err3;
+               goto out_err0;
        }
 
        /* Need mmio memory to check for fifo pitchlock cap. */
@@ -870,7 +865,6 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
        }
 
        ret = ttm_bo_device_init(&dev_priv->bdev,
-                                dev_priv->bo_global_ref.ref.object,
                                 &vmw_bo_driver,
                                 dev->anon_inode->i_mapping,
                                 VMWGFX_FILE_PAGE_OFFSET,
@@ -992,8 +986,6 @@ out_no_device:
        ttm_object_device_release(&dev_priv->tdev);
 out_err4:
        memunmap(dev_priv->mmio_virt);
-out_err3:
-       vmw_ttm_global_release(dev_priv);
 out_err0:
        for (i = vmw_res_context; i < vmw_res_max; ++i)
                idr_destroy(&dev_priv->res_idr[i]);
@@ -1045,7 +1037,6 @@ static void vmw_driver_unload(struct drm_device *dev)
        memunmap(dev_priv->mmio_virt);
        if (dev_priv->ctx.staged_bindings)
                vmw_binding_state_free(dev_priv->ctx.staged_bindings);
-       vmw_ttm_global_release(dev_priv);
 
        for (i = vmw_res_context; i < vmw_res_max; ++i)
                idr_destroy(&dev_priv->res_idr[i]);

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
index 252f202ae8972e22fcd6d9a1ed75a2b9102f85e9..28df788da44e30bb70015e151510435ab8c145e0 100644 (file)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
@@ -417,7 +417,6 @@ enum {
 
 struct vmw_private {
        struct ttm_bo_device bdev;
-       struct ttm_bo_global_ref bo_global_ref;
 
        struct vmw_fifo_state fifo;
 
@@ -841,8 +840,6 @@ extern int vmw_fifo_flush(struct vmw_private *dev_priv,
  * TTM glue - vmwgfx_ttm_glue.c
  */
 
-extern int vmw_ttm_global_init(struct vmw_private *dev_priv);
-extern void vmw_ttm_global_release(struct vmw_private *dev_priv);
 extern int vmw_mmap(struct file *filp, struct vm_area_struct *vma);
 
 /**

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c
index 0ac473cd5136a3201531c02cbc999bffd03ac700..154eb09aa91eb3ec96c74ede4b9b3ecd3117bfa1 100644 (file)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c
@@ -42,30 +42,3 @@ int vmw_mmap(struct file *filp, struct vm_area_struct *vma)
        dev_priv = vmw_priv(file_priv->minor->dev);
        return ttm_bo_mmap(filp, vma, &dev_priv->bdev);
 }
-
-int vmw_ttm_global_init(struct vmw_private *dev_priv)
-{
-       struct drm_global_reference *global_ref;
-       int ret;
-
-       global_ref = &dev_priv->bo_global_ref.ref;
-       global_ref->global_type = DRM_GLOBAL_TTM_BO;
-       global_ref->size = sizeof(struct ttm_bo_global);
-       global_ref->init = &ttm_bo_global_ref_init;
-       global_ref->release = &ttm_bo_global_ref_release;
-       ret = drm_global_item_ref(global_ref);
-
-       if (unlikely(ret != 0)) {
-               DRM_ERROR("Failed setting up TTM buffer objects.\n");
-               goto out_no_bo;
-       }
-
-       return 0;
-out_no_bo:
-       return ret;
-}
-
-void vmw_ttm_global_release(struct vmw_private *dev_priv)
-{
-       drm_global_item_unref(&dev_priv->bo_global_ref.ref);
-}

diff --git a/drivers/staging/vboxvideo/vbox_drv.h b/drivers/staging/vboxvideo/vbox_drv.h
index dc257a892ecbf79ad0dccae4d579e66e0d51d624..fa933d4229518e230c09d7bed1935543b1b6de5b 100644 (file)
--- a/drivers/staging/vboxvideo/vbox_drv.h
+++ b/drivers/staging/vboxvideo/vbox_drv.h
@@ -99,7 +99,6 @@ struct vbox_private {
        int fb_mtrr;
 
        struct {
-               struct ttm_bo_global_ref bo_global_ref;
                struct ttm_bo_device bdev;
        } ttm;
 

diff --git a/drivers/staging/vboxvideo/vbox_ttm.c b/drivers/staging/vboxvideo/vbox_ttm.c
index 73b8953280597383a4fcdf47f6b7c93a34a4d22c..b36ec019c33274bf4c8511b024bfeddd7965c980 100644 (file)
--- a/drivers/staging/vboxvideo/vbox_ttm.c
+++ b/drivers/staging/vboxvideo/vbox_ttm.c
@@ -35,37 +35,6 @@ static inline struct vbox_private *vbox_bdev(struct ttm_bo_device *bd)
        return container_of(bd, struct vbox_private, ttm.bdev);
 }
 
-/**
- * Adds the vbox memory manager object/structures to the global memory manager.
- */
-static int vbox_ttm_global_init(struct vbox_private *vbox)
-{
-       struct drm_global_reference *global_ref;
-       int ret;
-
-       global_ref = &vbox->ttm.bo_global_ref.ref;
-       global_ref->global_type = DRM_GLOBAL_TTM_BO;
-       global_ref->size = sizeof(struct ttm_bo_global);
-       global_ref->init = &ttm_bo_global_ref_init;
-       global_ref->release = &ttm_bo_global_ref_release;
-
-       ret = drm_global_item_ref(global_ref);
-       if (ret) {
-               DRM_ERROR("Failed setting up TTM BO subsystem.\n");
-               return ret;
-       }
-
-       return 0;
-}
-
-/**
- * Removes the vbox memory manager object from the global memory manager.
- */
-static void vbox_ttm_global_release(struct vbox_private *vbox)
-{
-       drm_global_item_unref(&vbox->ttm.bo_global_ref.ref);
-}
-
 static void vbox_bo_ttm_destroy(struct ttm_buffer_object *tbo)
 {
        struct vbox_bo *bo;
@@ -203,18 +172,13 @@ int vbox_mm_init(struct vbox_private *vbox)
        struct drm_device *dev = &vbox->ddev;
        struct ttm_bo_device *bdev = &vbox->ttm.bdev;
 
-       ret = vbox_ttm_global_init(vbox);
-       if (ret)
-               return ret;
-
        ret = ttm_bo_device_init(&vbox->ttm.bdev,
-                                vbox->ttm.bo_global_ref.ref.object,
                                 &vbox_bo_driver,
                                 dev->anon_inode->i_mapping,
                                 DRM_FILE_PAGE_OFFSET, true);
        if (ret) {
                DRM_ERROR("Error initialising bo driver; %d\n", ret);
-               goto err_ttm_global_release;
+               return ret;
        }
 
        ret = ttm_bo_init_mm(bdev, TTM_PL_VRAM,
@@ -236,8 +200,6 @@ int vbox_mm_init(struct vbox_private *vbox)
 
 err_device_release:
        ttm_bo_device_release(&vbox->ttm.bdev);
-err_ttm_global_release:
-       vbox_ttm_global_release(vbox);
        return ret;
 }
 
@@ -251,7 +213,6 @@ void vbox_mm_fini(struct vbox_private *vbox)
        arch_phys_wc_del(vbox->fb_mtrr);
 #endif
        ttm_bo_device_release(&vbox->ttm.bdev);
-       vbox_ttm_global_release(vbox);
 }
 
 void vbox_ttm_placement(struct vbox_bo *bo, int domain)

diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index 26be74939f107500326af42de2a89c37e04a5776..6fb589f646334d886baed016faf80e14ffe588d8 100644 (file)
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -569,9 +569,6 @@ void ttm_bo_mem_put(struct ttm_buffer_object *bo, struct ttm_mem_reg *mem);
 void ttm_bo_mem_put_locked(struct ttm_buffer_object *bo,
                           struct ttm_mem_reg *mem);
 
-void ttm_bo_global_release(void);
-int ttm_bo_global_init(void);
-
 int ttm_bo_device_release(struct ttm_bo_device *bdev);
 
 /**
@@ -589,7 +586,7 @@ int ttm_bo_device_release(struct ttm_bo_device *bdev);
  * Returns:
  * !0: Failure.
  */
-int ttm_bo_device_init(struct ttm_bo_device *bdev, struct ttm_bo_global *glob,
+int ttm_bo_device_init(struct ttm_bo_device *bdev,
                       struct ttm_bo_driver *driver,
                       struct address_space *mapping,
                       uint64_t file_page_offset, bool need_dma32);
@@ -888,40 +885,4 @@ pgprot_t ttm_io_prot(uint32_t caching_flags, pgprot_t tmp);
 
 extern const struct ttm_mem_type_manager_func ttm_bo_manager_func;
 
-/**
- * struct ttm_bo_global_ref - Argument to initialize a struct ttm_bo_global.
- */
-
-struct ttm_bo_global_ref {
-       struct drm_global_reference ref;
-};
-
-/**
- * ttm_bo_global_ref_init
- *
- * @ref: DRM global reference
- *
- * Helper function that initializes a struct ttm_bo_global. This function
- * is used as init call-back function for DRM global references of type
- * DRM_GLOBAL_TTM_BO_REF.
- */
-static inline int ttm_bo_global_ref_init(struct drm_global_reference *ref)
-{
-       return ttm_bo_global_init();
-}
-
-/**
- * ttm_bo_global_ref_release
- *
- * @ref: DRM global reference
- *
- * Helper function that releases a struct ttm_bo_global. This function
- * is used as release call-back function for DRM global references of type
- * DRM_GLOBAL_TTM_BO_REF.
- */
-static inline void ttm_bo_global_ref_release(struct drm_global_reference *ref)
-{
-       ttm_bo_global_release();
-}
-
 #endif