Rather than using "struct file*", use "struct drm_file*" as tag VM tag for BOs. This will pave the way for "struct drm_file*" without any "struct file*" back-pointer.
Signed-off-by: David Herrmann dh.herrmann@gmail.com --- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 3 ++- drivers/gpu/drm/ast/ast_ttm.c | 3 ++- drivers/gpu/drm/bochs/bochs_mm.c | 3 ++- drivers/gpu/drm/cirrus/cirrus_ttm.c | 3 ++- drivers/gpu/drm/drm_gem.c | 8 +++---- drivers/gpu/drm/drm_vma_manager.c | 40 ++++++++++++++++----------------- drivers/gpu/drm/mgag200/mgag200_ttm.c | 3 ++- drivers/gpu/drm/nouveau/nouveau_bo.c | 3 ++- drivers/gpu/drm/qxl/qxl_ttm.c | 3 ++- drivers/gpu/drm/radeon/radeon_ttm.c | 3 ++- include/drm/drm_vma_manager.h | 20 +++++++++-------- 11 files changed, 51 insertions(+), 41 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 9b61c8b..d975346 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -225,7 +225,8 @@ static int amdgpu_verify_access(struct ttm_buffer_object *bo, struct file *filp)
if (amdgpu_ttm_tt_get_usermm(bo->ttm)) return -EPERM; - return drm_vma_node_verify_access(&rbo->gem_base.vma_node, filp); + return drm_vma_node_verify_access(&rbo->gem_base.vma_node, + filp->private_data); }
static void amdgpu_move_null(struct ttm_buffer_object *bo, diff --git a/drivers/gpu/drm/ast/ast_ttm.c b/drivers/gpu/drm/ast/ast_ttm.c index b29a412..608df4c 100644 --- a/drivers/gpu/drm/ast/ast_ttm.c +++ b/drivers/gpu/drm/ast/ast_ttm.c @@ -150,7 +150,8 @@ static int ast_bo_verify_access(struct ttm_buffer_object *bo, struct file *filp) { struct ast_bo *astbo = ast_bo(bo);
- return drm_vma_node_verify_access(&astbo->gem.vma_node, filp); + return drm_vma_node_verify_access(&astbo->gem.vma_node, + filp->private_data); }
static int ast_ttm_io_mem_reserve(struct ttm_bo_device *bdev, diff --git a/drivers/gpu/drm/bochs/bochs_mm.c b/drivers/gpu/drm/bochs/bochs_mm.c index 5c5638a..269cfca 100644 --- a/drivers/gpu/drm/bochs/bochs_mm.c +++ b/drivers/gpu/drm/bochs/bochs_mm.c @@ -128,7 +128,8 @@ static int bochs_bo_verify_access(struct ttm_buffer_object *bo, { struct bochs_bo *bochsbo = bochs_bo(bo);
- return drm_vma_node_verify_access(&bochsbo->gem.vma_node, filp); + return drm_vma_node_verify_access(&bochsbo->gem.vma_node, + filp->private_data); }
static int bochs_ttm_io_mem_reserve(struct ttm_bo_device *bdev, diff --git a/drivers/gpu/drm/cirrus/cirrus_ttm.c b/drivers/gpu/drm/cirrus/cirrus_ttm.c index 1cc9ee6..bb2438d 100644 --- a/drivers/gpu/drm/cirrus/cirrus_ttm.c +++ b/drivers/gpu/drm/cirrus/cirrus_ttm.c @@ -150,7 +150,8 @@ static int cirrus_bo_verify_access(struct ttm_buffer_object *bo, struct file *fi { struct cirrus_bo *cirrusbo = cirrus_bo(bo);
- return drm_vma_node_verify_access(&cirrusbo->gem.vma_node, filp); + return drm_vma_node_verify_access(&cirrusbo->gem.vma_node, + filp->private_data); }
static int cirrus_ttm_io_mem_reserve(struct ttm_bo_device *bdev, diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c index 9134ae1..465bacd 100644 --- a/drivers/gpu/drm/drm_gem.c +++ b/drivers/gpu/drm/drm_gem.c @@ -257,7 +257,7 @@ drm_gem_object_release_handle(int id, void *ptr, void *data)
if (drm_core_check_feature(dev, DRIVER_PRIME)) drm_gem_remove_prime_handles(obj, file_priv); - drm_vma_node_revoke(&obj->vma_node, file_priv->filp); + drm_vma_node_revoke(&obj->vma_node, file_priv);
if (dev->driver->gem_close_object) dev->driver->gem_close_object(obj, file_priv); @@ -372,7 +372,7 @@ drm_gem_handle_create_tail(struct drm_file *file_priv,
handle = ret;
- ret = drm_vma_node_allow(&obj->vma_node, file_priv->filp); + ret = drm_vma_node_allow(&obj->vma_node, file_priv); if (ret) goto err_remove;
@@ -386,7 +386,7 @@ drm_gem_handle_create_tail(struct drm_file *file_priv, return 0;
err_revoke: - drm_vma_node_revoke(&obj->vma_node, file_priv->filp); + drm_vma_node_revoke(&obj->vma_node, file_priv); err_remove: spin_lock(&file_priv->table_lock); idr_remove(&file_priv->object_idr, handle); @@ -991,7 +991,7 @@ int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma) if (!obj) return -EINVAL;
- if (!drm_vma_node_is_allowed(node, filp)) { + if (!drm_vma_node_is_allowed(node, priv)) { drm_gem_object_unreference_unlocked(obj); return -EACCES; } diff --git a/drivers/gpu/drm/drm_vma_manager.c b/drivers/gpu/drm/drm_vma_manager.c index f306c88..a788a80 100644 --- a/drivers/gpu/drm/drm_vma_manager.c +++ b/drivers/gpu/drm/drm_vma_manager.c @@ -25,7 +25,6 @@ #include <drm/drmP.h> #include <drm/drm_mm.h> #include <drm/drm_vma_manager.h> -#include <linux/fs.h> #include <linux/mm.h> #include <linux/module.h> #include <linux/rbtree.h> @@ -277,9 +276,9 @@ EXPORT_SYMBOL(drm_vma_offset_remove); /** * drm_vma_node_allow - Add open-file to list of allowed users * @node: Node to modify - * @filp: Open file to add + * @tag: Tag of file to remove * - * Add @filp to the list of allowed open-files for this node. If @filp is + * Add @tag to the list of allowed open-files for this node. If @tag is * already on this list, the ref-count is incremented. * * The list of allowed-users is preserved across drm_vma_offset_add() and @@ -294,7 +293,7 @@ EXPORT_SYMBOL(drm_vma_offset_remove); * RETURNS: * 0 on success, negative error code on internal failure (out-of-mem) */ -int drm_vma_node_allow(struct drm_vma_offset_node *node, struct file *filp) +int drm_vma_node_allow(struct drm_vma_offset_node *node, struct drm_file *tag) { struct rb_node **iter; struct rb_node *parent = NULL; @@ -315,10 +314,10 @@ int drm_vma_node_allow(struct drm_vma_offset_node *node, struct file *filp) parent = *iter; entry = rb_entry(*iter, struct drm_vma_offset_file, vm_rb);
- if (filp == entry->vm_filp) { + if (tag == entry->vm_tag) { entry->vm_count++; goto unlock; - } else if (filp > entry->vm_filp) { + } else if (tag > entry->vm_tag) { iter = &(*iter)->rb_right; } else { iter = &(*iter)->rb_left; @@ -330,7 +329,7 @@ int drm_vma_node_allow(struct drm_vma_offset_node *node, struct file *filp) goto unlock; }
- new->vm_filp = filp; + new->vm_tag = tag; new->vm_count = 1; rb_link_node(&new->vm_rb, parent, iter); rb_insert_color(&new->vm_rb, &node->vm_files); @@ -346,17 +345,18 @@ EXPORT_SYMBOL(drm_vma_node_allow); /** * drm_vma_node_revoke - Remove open-file from list of allowed users * @node: Node to modify - * @filp: Open file to remove + * @tag: Tag of file to remove * - * Decrement the ref-count of @filp in the list of allowed open-files on @node. - * If the ref-count drops to zero, remove @filp from the list. You must call - * this once for every drm_vma_node_allow() on @filp. + * Decrement the ref-count of @tag in the list of allowed open-files on @node. + * If the ref-count drops to zero, remove @tag from the list. You must call + * this once for every drm_vma_node_allow() on @tag. * * This is locked against concurrent access internally. * - * If @filp is not on the list, nothing is done. + * If @tag is not on the list, nothing is done. */ -void drm_vma_node_revoke(struct drm_vma_offset_node *node, struct file *filp) +void drm_vma_node_revoke(struct drm_vma_offset_node *node, + struct drm_file *tag) { struct drm_vma_offset_file *entry; struct rb_node *iter; @@ -366,13 +366,13 @@ void drm_vma_node_revoke(struct drm_vma_offset_node *node, struct file *filp) iter = node->vm_files.rb_node; while (likely(iter)) { entry = rb_entry(iter, struct drm_vma_offset_file, vm_rb); - if (filp == entry->vm_filp) { + if (tag == entry->vm_tag) { if (!--entry->vm_count) { rb_erase(&entry->vm_rb, &node->vm_files); kfree(entry); } break; - } else if (filp > entry->vm_filp) { + } else if (tag > entry->vm_tag) { iter = iter->rb_right; } else { iter = iter->rb_left; @@ -386,9 +386,9 @@ EXPORT_SYMBOL(drm_vma_node_revoke); /** * drm_vma_node_is_allowed - Check whether an open-file is granted access * @node: Node to check - * @filp: Open-file to check for + * @tag: Tag of file to remove * - * Search the list in @node whether @filp is currently on the list of allowed + * Search the list in @node whether @tag is currently on the list of allowed * open-files (see drm_vma_node_allow()). * * This is locked against concurrent access internally. @@ -397,7 +397,7 @@ EXPORT_SYMBOL(drm_vma_node_revoke); * true iff @filp is on the list */ bool drm_vma_node_is_allowed(struct drm_vma_offset_node *node, - struct file *filp) + struct drm_file *tag) { struct drm_vma_offset_file *entry; struct rb_node *iter; @@ -407,9 +407,9 @@ bool drm_vma_node_is_allowed(struct drm_vma_offset_node *node, iter = node->vm_files.rb_node; while (likely(iter)) { entry = rb_entry(iter, struct drm_vma_offset_file, vm_rb); - if (filp == entry->vm_filp) + if (tag == entry->vm_tag) break; - else if (filp > entry->vm_filp) + else if (tag > entry->vm_tag) iter = iter->rb_right; else iter = iter->rb_left; diff --git a/drivers/gpu/drm/mgag200/mgag200_ttm.c b/drivers/gpu/drm/mgag200/mgag200_ttm.c index 68268e5..919b35f 100644 --- a/drivers/gpu/drm/mgag200/mgag200_ttm.c +++ b/drivers/gpu/drm/mgag200/mgag200_ttm.c @@ -150,7 +150,8 @@ static int mgag200_bo_verify_access(struct ttm_buffer_object *bo, struct file *f { struct mgag200_bo *mgabo = mgag200_bo(bo);
- return drm_vma_node_verify_access(&mgabo->gem.vma_node, filp); + return drm_vma_node_verify_access(&mgabo->gem.vma_node, + filp->private_data); }
static int mgag200_ttm_io_mem_reserve(struct ttm_bo_device *bdev, diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index 6190035..3a3e0b8 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -1315,7 +1315,8 @@ nouveau_bo_verify_access(struct ttm_buffer_object *bo, struct file *filp) { struct nouveau_bo *nvbo = nouveau_bo(bo);
- return drm_vma_node_verify_access(&nvbo->gem.vma_node, filp); + return drm_vma_node_verify_access(&nvbo->gem.vma_node, + filp->private_data); }
static int diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c index d50c967..3f6dee3 100644 --- a/drivers/gpu/drm/qxl/qxl_ttm.c +++ b/drivers/gpu/drm/qxl/qxl_ttm.c @@ -210,7 +210,8 @@ static int qxl_verify_access(struct ttm_buffer_object *bo, struct file *filp) { struct qxl_bo *qbo = to_qxl_bo(bo);
- return drm_vma_node_verify_access(&qbo->gem_base.vma_node, filp); + return drm_vma_node_verify_access(&qbo->gem_base.vma_node, + filp->private_data); }
static int qxl_ttm_io_mem_reserve(struct ttm_bo_device *bdev, diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index 0c00e19..b4341fa 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -237,7 +237,8 @@ static int radeon_verify_access(struct ttm_buffer_object *bo, struct file *filp)
if (radeon_ttm_tt_has_userptr(bo->ttm)) return -EPERM; - return drm_vma_node_verify_access(&rbo->gem_base.vma_node, filp); + return drm_vma_node_verify_access(&rbo->gem_base.vma_node, + filp->private_data); }
static void radeon_move_null(struct ttm_buffer_object *bo, diff --git a/include/drm/drm_vma_manager.h b/include/drm/drm_vma_manager.h index 06ea8e07..304cdaa 100644 --- a/include/drm/drm_vma_manager.h +++ b/include/drm/drm_vma_manager.h @@ -24,16 +24,17 @@ */
#include <drm/drm_mm.h> -#include <linux/fs.h> #include <linux/mm.h> #include <linux/module.h> #include <linux/rbtree.h> #include <linux/spinlock.h> #include <linux/types.h>
+struct drm_file; + struct drm_vma_offset_file { struct rb_node vm_rb; - struct file *vm_filp; + struct drm_file *vm_tag; unsigned long vm_count; };
@@ -62,10 +63,11 @@ int drm_vma_offset_add(struct drm_vma_offset_manager *mgr, void drm_vma_offset_remove(struct drm_vma_offset_manager *mgr, struct drm_vma_offset_node *node);
-int drm_vma_node_allow(struct drm_vma_offset_node *node, struct file *filp); -void drm_vma_node_revoke(struct drm_vma_offset_node *node, struct file *filp); +int drm_vma_node_allow(struct drm_vma_offset_node *node, struct drm_file *tag); +void drm_vma_node_revoke(struct drm_vma_offset_node *node, + struct drm_file *tag); bool drm_vma_node_is_allowed(struct drm_vma_offset_node *node, - struct file *filp); + struct drm_file *tag);
/** * drm_vma_offset_exact_lookup_locked() - Look up node by exact address @@ -216,9 +218,9 @@ static inline void drm_vma_node_unmap(struct drm_vma_offset_node *node, /** * drm_vma_node_verify_access() - Access verification helper for TTM * @node: Offset node - * @filp: Open-file + * @tag: Tag of file to check * - * This checks whether @filp is granted access to @node. It is the same as + * This checks whether @tag is granted access to @node. It is the same as * drm_vma_node_is_allowed() but suitable as drop-in helper for TTM * verify_access() callbacks. * @@ -226,9 +228,9 @@ static inline void drm_vma_node_unmap(struct drm_vma_offset_node *node, * 0 if access is granted, -EACCES otherwise. */ static inline int drm_vma_node_verify_access(struct drm_vma_offset_node *node, - struct file *filp) + struct drm_file *tag) { - return drm_vma_node_is_allowed(node, filp) ? 0 : -EACCES; + return drm_vma_node_is_allowed(node, tag) ? 0 : -EACCES; }
#endif /* __DRM_VMA_MANAGER_H__ */