drm: init TTM dev_mapping in ttm_bo_device_init()

With dev->anon_inode we have a global address_space ready for operation
right from the beginning. Therefore, there is no need to do a delayed
setup with TTM. Instead, set dev_mapping during initialization in
ttm_bo_device_init() and remove any "if (dev_mapping)" conditions.

Cc: Dave Airlie <airlied@redhat.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Alex Deucher <alexdeucher@gmail.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>

14 files changed, 31 insertions, 22 deletions

diff --git a/drivers/gpu/drm/ast/ast_ttm.c b/drivers/gpu/drm/ast/ast_ttm.c
index 2b491539e60c..b8246227bab0 100644
--- a/drivers/gpu/drm/ast/ast_ttm.c
+++ b/drivers/gpu/drm/ast/ast_ttm.c
@@ -259,7 +259,9 @@ int ast_mm_init(struct ast_private *ast)
 
         ret = ttm_bo_device_init(&ast->ttm.bdev,
                                  ast->ttm.bo_global_ref.ref.object,
-                                 &ast_bo_driver, DRM_FILE_PAGE_OFFSET,
+                                 &ast_bo_driver,
+                                 dev->anon_inode->i_mapping,
+                                 DRM_FILE_PAGE_OFFSET,
                                  true);
         if (ret) {
                 DRM_ERROR("Error initialising bo driver; %d\n", ret);
@@ -324,7 +326,6 @@ int ast_bo_create(struct drm_device *dev, int size, int align,
         }
 
         astbo->bo.bdev = &ast->ttm.bdev;
-        astbo->bo.bdev->dev_mapping = dev->anon_inode->i_mapping;
 
         ast_ttm_placement(astbo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM);
 
diff --git a/drivers/gpu/drm/bochs/bochs_mm.c b/drivers/gpu/drm/bochs/bochs_mm.c
index 2d8546d7b4af..f488be55d650 100644
--- a/drivers/gpu/drm/bochs/bochs_mm.c
+++ b/drivers/gpu/drm/bochs/bochs_mm.c
@@ -225,7 +225,9 @@ int bochs_mm_init(struct bochs_device *bochs)
 
         ret = ttm_bo_device_init(&bochs->ttm.bdev,
                                  bochs->ttm.bo_global_ref.ref.object,
-                                 &bochs_bo_driver, DRM_FILE_PAGE_OFFSET,
+                                 &bochs_bo_driver,
+                                 bochs->dev->anon_inode->i_mapping,
+                                 DRM_FILE_PAGE_OFFSET,
                                  true);
         if (ret) {
                 DRM_ERROR("Error initialising bo driver; %d\n", ret);
diff --git a/drivers/gpu/drm/cirrus/cirrus_ttm.c b/drivers/gpu/drm/cirrus/cirrus_ttm.c
index efcbd70a8774..92e6b7786097 100644
--- a/drivers/gpu/drm/cirrus/cirrus_ttm.c
+++ b/drivers/gpu/drm/cirrus/cirrus_ttm.c
@@ -259,7 +259,9 @@ int cirrus_mm_init(struct cirrus_device *cirrus)
 
         ret = ttm_bo_device_init(&cirrus->ttm.bdev,
                                  cirrus->ttm.bo_global_ref.ref.object,
-                                 &cirrus_bo_driver, DRM_FILE_PAGE_OFFSET,
+                                 &cirrus_bo_driver,
+                                 dev->anon_inode->i_mapping,
+                                 DRM_FILE_PAGE_OFFSET,
                                  true);
         if (ret) {
                 DRM_ERROR("Error initialising bo driver; %d\n", ret);
@@ -329,7 +331,6 @@ int cirrus_bo_create(struct drm_device *dev, int size, int align,
         }
 
         cirrusbo->bo.bdev = &cirrus->ttm.bdev;
-        cirrusbo->bo.bdev->dev_mapping = dev->anon_inode->i_mapping;
 
         cirrus_ttm_placement(cirrusbo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM);
 
diff --git a/drivers/gpu/drm/mgag200/mgag200_ttm.c b/drivers/gpu/drm/mgag200/mgag200_ttm.c
index c1c2cb608ab3..5a00e90696de 100644
--- a/drivers/gpu/drm/mgag200/mgag200_ttm.c
+++ b/drivers/gpu/drm/mgag200/mgag200_ttm.c
@@ -259,7 +259,9 @@ int mgag200_mm_init(struct mga_device *mdev)
 
         ret = ttm_bo_device_init(&mdev->ttm.bdev,
                                  mdev->ttm.bo_global_ref.ref.object,
-                                 &mgag200_bo_driver, DRM_FILE_PAGE_OFFSET,
+                                 &mgag200_bo_driver,
+                                 dev->anon_inode->i_mapping,
+                                 DRM_FILE_PAGE_OFFSET,
                                  true);
         if (ret) {
                 DRM_ERROR("Error initialising bo driver; %d\n", ret);
@@ -324,7 +326,6 @@ int mgag200_bo_create(struct drm_device *dev, int size, int align,
         }
 
         mgabo->bo.bdev = &mdev->ttm.bdev;
-        mgabo->bo.bdev->dev_mapping = dev->anon_inode->i_mapping;
 
         mgag200_ttm_placement(mgabo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM);
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c
index 5b193b898f5a..c90c0dc0afe8 100644
--- a/drivers/gpu/drm/nouveau/nouveau_gem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_gem.c
@@ -228,8 +228,6 @@ nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
         struct nouveau_bo *nvbo = NULL;
         int ret = 0;
 
-        drm->ttm.bdev.dev_mapping = drm->dev->anon_inode->i_mapping;
-
         if (!pfb->memtype_valid(pfb, req->info.tile_flags)) {
                 NV_ERROR(cli, "bad page flags: 0x%08x\n", req->info.tile_flags);
                 return -EINVAL;
diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c
index d45d50da978f..be3a3c9feafa 100644
--- a/drivers/gpu/drm/nouveau/nouveau_ttm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c
@@ -376,7 +376,9 @@ nouveau_ttm_init(struct nouveau_drm *drm)
 
         ret = ttm_bo_device_init(&drm->ttm.bdev,
                                   drm->ttm.bo_global_ref.ref.object,
-                                  &nouveau_bo_driver, DRM_FILE_PAGE_OFFSET,
+                                  &nouveau_bo_driver,
+                                  dev->anon_inode->i_mapping,
+                                  DRM_FILE_PAGE_OFFSET,
                                   bits <= 32 ? true : false);
         if (ret) {
                 NV_ERROR(drm, "error initialising bo driver, %d\n", ret);
diff --git a/drivers/gpu/drm/qxl/qxl_object.c b/drivers/gpu/drm/qxl/qxl_object.c
index 7e20c21b0879..b95f144f0b49 100644
--- a/drivers/gpu/drm/qxl/qxl_object.c
+++ b/drivers/gpu/drm/qxl/qxl_object.c
@@ -82,7 +82,6 @@ int qxl_bo_create(struct qxl_device *qdev,
         enum ttm_bo_type type;
         int r;
 
-        qdev->mman.bdev.dev_mapping = qdev->ddev->anon_inode->i_mapping;
         if (kernel)
                 type = ttm_bo_type_kernel;
         else
diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
index 78cbc40a8efb..29c02e0e857f 100644
--- a/drivers/gpu/drm/qxl/qxl_ttm.c
+++ b/drivers/gpu/drm/qxl/qxl_ttm.c
@@ -493,7 +493,9 @@ int qxl_ttm_init(struct qxl_device *qdev)
         /* 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, DRM_FILE_PAGE_OFFSET, 0);
+                               &qxl_bo_driver,
+                               qdev->ddev->anon_inode->i_mapping,
+                               DRM_FILE_PAGE_OFFSET, 0);
         if (r) {
                 DRM_ERROR("failed initializing buffer object driver(%d).\n", r);
                 return r;
@@ -518,7 +520,6 @@ int qxl_ttm_init(struct qxl_device *qdev)
                  ((unsigned)num_io_pages * PAGE_SIZE) / (1024 * 1024));
         DRM_INFO("qxl: %uM of Surface memory size\n",
                  (unsigned)qdev->surfaceram_size / (1024 * 1024));
-        qdev->mman.bdev.dev_mapping = qdev->ddev->anon_inode->i_mapping;
         r = qxl_ttm_debugfs_init(qdev);
         if (r) {
                 DRM_ERROR("Failed to init debugfs\n");
diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c
index 6a7f3c6ffbbe..1375ff85b08a 100644
--- a/drivers/gpu/drm/radeon/radeon_object.c
+++ b/drivers/gpu/drm/radeon/radeon_object.c
@@ -145,7 +145,6 @@ int radeon_bo_create(struct radeon_device *rdev,
 
         size = ALIGN(size, PAGE_SIZE);
 
-        rdev->mman.bdev.dev_mapping = rdev->ddev->anon_inode->i_mapping;
         if (kernel) {
                 type = ttm_bo_type_kernel;
         } else if (sg) {
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 4663fbcfda28..2db486666d91 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -707,7 +707,9 @@ int radeon_ttm_init(struct radeon_device *rdev)
         /* 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, DRM_FILE_PAGE_OFFSET,
+                               &radeon_bo_driver,
+                               rdev->ddev->anon_inode->i_mapping,
+                               DRM_FILE_PAGE_OFFSET,
                                rdev->need_dma32);
         if (r) {
                 DRM_ERROR("failed initializing buffer object driver(%d).\n", r);
@@ -745,7 +747,6 @@ int radeon_ttm_init(struct radeon_device *rdev)
         }
         DRM_INFO("radeon: %uM of GTT memory ready.\n",
                  (unsigned)(rdev->mc.gtt_size / (1024 * 1024)));
-        rdev->mman.bdev.dev_mapping = rdev->ddev->anon_inode->i_mapping;
 
         r = radeon_ttm_debugfs_init(rdev);
         if (r) {
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index a06651309388..79238d2face9 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -1449,6 +1449,7 @@ 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)
 {
@@ -1470,7 +1471,7 @@ int ttm_bo_device_init(struct ttm_bo_device *bdev,
                                     0x10000000);
         INIT_DELAYED_WORK(&bdev->wq, ttm_bo_delayed_workqueue);
         INIT_LIST_HEAD(&bdev->ddestroy);
-        bdev->dev_mapping = NULL;
+        bdev->dev_mapping = mapping;
         bdev->glob = glob;
         bdev->need_dma32 = need_dma32;
         bdev->val_seq = 0;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index df4b03e035bc..c35715f26f40 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -722,7 +722,9 @@ 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, VMWGFX_FILE_PAGE_OFFSET,
+                                 &vmw_bo_driver,
+                                 dev->anon_inode->i_mapping,
+                                 VMWGFX_FILE_PAGE_OFFSET,
                                  false);
         if (unlikely(ret != 0)) {
                 DRM_ERROR("Failed initializing TTM buffer object driver.\n");
@@ -969,7 +971,6 @@ static int vmw_driver_open(struct drm_device *dev, struct drm_file *file_priv)
                 goto out_no_shman;
 
         file_priv->driver_priv = vmw_fp;
-        dev_priv->bdev.dev_mapping = dev->anon_inode->i_mapping;
 
         return 0;
 
diff --git a/include/drm/drm_vma_manager.h b/include/drm/drm_vma_manager.h
index c18a593d1744..8cd402c73a5f 100644
--- a/include/drm/drm_vma_manager.h
+++ b/include/drm/drm_vma_manager.h
@@ -221,8 +221,8 @@ static inline __u64 drm_vma_node_offset_addr(struct drm_vma_offset_node *node)
  * @file_mapping: Address space to unmap @node from
  *
  * Unmap all userspace mappings for a given offset node. The mappings must be
- * associated with the @file_mapping address-space. If no offset exists or
- * the address-space is invalid, nothing is done.
+ * associated with the @file_mapping address-space. If no offset exists
+ * nothing is done.
  *
  * This call is unlocked. The caller must guarantee that drm_vma_offset_remove()
  * is not called on this node concurrently.
@@ -230,7 +230,7 @@ static inline __u64 drm_vma_node_offset_addr(struct drm_vma_offset_node *node)
 static inline void drm_vma_node_unmap(struct drm_vma_offset_node *node,
                                       struct address_space *file_mapping)
 {
-        if (file_mapping && drm_vma_node_has_offset(node))
+        if (drm_vma_node_has_offset(node))
                 unmap_mapping_range(file_mapping,
                                     drm_vma_node_offset_addr(node),
                                     drm_vma_node_size(node) << PAGE_SHIFT, 1);
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index 32d34ebf0706..5d8aabe68f6c 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -747,6 +747,7 @@ extern int ttm_bo_device_release(struct ttm_bo_device *bdev);
  * @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.
  * @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.
@@ -758,6 +759,7 @@ extern int ttm_bo_device_release(struct ttm_bo_device *bdev);
 extern 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);
 
 /**