diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/drm/drmP.h | 148 | ||||
| -rw-r--r-- | include/drm/drm_gem.h | 183 | ||||
| -rw-r--r-- | include/drm/drm_gem_cma_helper.h | 1 |
3 files changed, 185 insertions, 147 deletions
diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 6656fd7d64d4..d2c2b7f3a4e2 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -82,6 +82,7 @@ struct drm_agp_head; struct drm_local_map; struct drm_device_dma; struct drm_dma_handle; +struct drm_gem_object; struct device_node; struct videomode; @@ -331,93 +332,6 @@ struct drm_lock_data { }; /** - * This structure defines the drm_mm memory object, which will be used by the - * DRM for its buffer objects. - */ -struct drm_gem_object { - /** Reference count of this object */ - struct kref refcount; - - /** - * handle_count - gem file_priv handle count of this object - * - * Each handle also holds a reference. Note that when the handle_count - * drops to 0 any global names (e.g. the id in the flink namespace) will - * be cleared. - * - * Protected by dev->object_name_lock. - * */ - unsigned handle_count; - - /** Related drm device */ - struct drm_device *dev; - - /** File representing the shmem storage */ - struct file *filp; - - /* Mapping info for this object */ - struct drm_vma_offset_node vma_node; - - /** - * Size of the object, in bytes. Immutable over the object's - * lifetime. - */ - size_t size; - - /** - * Global name for this object, starts at 1. 0 means unnamed. - * Access is covered by the object_name_lock in the related drm_device - */ - int name; - - /** - * Memory domains. These monitor which caches contain read/write data - * related to the object. When transitioning from one set of domains - * to another, the driver is called to ensure that caches are suitably - * flushed and invalidated - */ - uint32_t read_domains; - uint32_t write_domain; - - /** - * While validating an exec operation, the - * new read/write domain values are computed here. - * They will be transferred to the above values - * at the point that any cache flushing occurs - */ - uint32_t pending_read_domains; - uint32_t pending_write_domain; - - /** - * dma_buf - dma buf associated with this GEM object - * - * Pointer to the dma-buf associated with this gem object (either - * through importing or exporting). We break the resulting reference - * loop when the last gem handle for this object is released. - * - * Protected by obj->object_name_lock - */ - struct dma_buf *dma_buf; - - /** - * import_attach - dma buf attachment backing this object - * - * Any foreign dma_buf imported as a gem object has this set to the - * attachment point for the device. This is invariant over the lifetime - * of a gem object. - * - * The driver's ->gem_free_object callback is responsible for cleaning - * up the dma_buf attachment and references acquired at import time. - * - * Note that the drm gem/prime core does not depend upon drivers setting - * this field any more. So for drivers where this doesn't make sense - * (e.g. virtual devices or a displaylink behind an usb bus) they can - * simply leave it as NULL. - */ - struct dma_buf_attachment *import_attach; -}; - -/** * struct drm_master - drm master structure * * @refcount: Refcount for this master object. @@ -1073,10 +987,6 @@ extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page ** extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, int nr_pages); extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); -int drm_gem_dumb_destroy(struct drm_file *file, - struct drm_device *dev, - uint32_t handle); - extern struct drm_dma_handle *drm_pci_alloc(struct drm_device *dev, size_t size, size_t align); @@ -1085,62 +995,6 @@ extern void drm_pci_free(struct drm_device *dev, struct drm_dma_handle * dmah); /* sysfs support (drm_sysfs.c) */ extern void drm_sysfs_hotplug_event(struct drm_device *dev); -/* Graphics Execution Manager library functions (drm_gem.c) */ -void drm_gem_object_release(struct drm_gem_object *obj); -void drm_gem_object_free(struct kref *kref); -int drm_gem_object_init(struct drm_device *dev, - struct drm_gem_object *obj, size_t size); -void drm_gem_private_object_init(struct drm_device *dev, - struct drm_gem_object *obj, size_t size); -void drm_gem_vm_open(struct vm_area_struct *vma); -void drm_gem_vm_close(struct vm_area_struct *vma); -int drm_gem_mmap_obj(struct drm_gem_object *obj, unsigned long obj_size, - struct vm_area_struct *vma); -int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); - -static inline void -drm_gem_object_reference(struct drm_gem_object *obj) -{ - kref_get(&obj->refcount); -} - -static inline void -drm_gem_object_unreference(struct drm_gem_object *obj) -{ - if (obj != NULL) - kref_put(&obj->refcount, drm_gem_object_free); -} - -static inline void -drm_gem_object_unreference_unlocked(struct drm_gem_object *obj) -{ - if (obj && !atomic_add_unless(&obj->refcount.refcount, -1, 1)) { - struct drm_device *dev = obj->dev; - - mutex_lock(&dev->struct_mutex); - if (likely(atomic_dec_and_test(&obj->refcount.refcount))) - drm_gem_object_free(&obj->refcount); - mutex_unlock(&dev->struct_mutex); - } -} - -int drm_gem_handle_create(struct drm_file *file_priv, - struct drm_gem_object *obj, - u32 *handlep); -int drm_gem_handle_delete(struct drm_file *filp, u32 handle); - - -void drm_gem_free_mmap_offset(struct drm_gem_object *obj); -int drm_gem_create_mmap_offset(struct drm_gem_object *obj); -int drm_gem_create_mmap_offset_size(struct drm_gem_object *obj, size_t size); - -struct page **drm_gem_get_pages(struct drm_gem_object *obj); -void drm_gem_put_pages(struct drm_gem_object *obj, struct page **pages, - bool dirty, bool accessed); - -struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev, - struct drm_file *filp, - u32 handle); struct drm_device *drm_dev_alloc(struct drm_driver *driver, struct device *parent); diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h new file mode 100644 index 000000000000..1e6ae1458f7a --- /dev/null +++ b/include/drm/drm_gem.h @@ -0,0 +1,183 @@ +#ifndef __DRM_GEM_H__ +#define __DRM_GEM_H__ + +/* + * GEM Graphics Execution Manager Driver Interfaces + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * Copyright (c) 2009-2010, Code Aurora Forum. + * All rights reserved. + * Copyright © 2014 Intel Corporation + * Daniel Vetter <daniel.vetter@ffwll.ch> + * + * Author: Rickard E. (Rik) Faith <faith@valinux.com> + * Author: Gareth Hughes <gareth@valinux.com> + * + * 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 (including the next + * paragraph) 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 + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS 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. + */ + +/** + * This structure defines the drm_mm memory object, which will be used by the + * DRM for its buffer objects. + */ +struct drm_gem_object { + /** Reference count of this object */ + struct kref refcount; + + /** + * handle_count - gem file_priv handle count of this object + * + * Each handle also holds a reference. Note that when the handle_count + * drops to 0 any global names (e.g. the id in the flink namespace) will + * be cleared. + * + * Protected by dev->object_name_lock. + * */ + unsigned handle_count; + + /** Related drm device */ + struct drm_device *dev; + + /** File representing the shmem storage */ + struct file *filp; + + /* Mapping info for this object */ + struct drm_vma_offset_node vma_node; + + /** + * Size of the object, in bytes. Immutable over the object's + * lifetime. + */ + size_t size; + + /** + * Global name for this object, starts at 1. 0 means unnamed. + * Access is covered by the object_name_lock in the related drm_device + */ + int name; + + /** + * Memory domains. These monitor which caches contain read/write data + * related to the object. When transitioning from one set of domains + * to another, the driver is called to ensure that caches are suitably + * flushed and invalidated + */ + uint32_t read_domains; + uint32_t write_domain; + + /** + * While validating an exec operation, the + * new read/write domain values are computed here. + * They will be transferred to the above values + * at the point that any cache flushing occurs + */ + uint32_t pending_read_domains; + uint32_t pending_write_domain; + + /** + * dma_buf - dma buf associated with this GEM object + * + * Pointer to the dma-buf associated with this gem object (either + * through importing or exporting). We break the resulting reference + * loop when the last gem handle for this object is released. + * + * Protected by obj->object_name_lock + */ + struct dma_buf *dma_buf; + + /** + * import_attach - dma buf attachment backing this object + * + * Any foreign dma_buf imported as a gem object has this set to the + * attachment point for the device. This is invariant over the lifetime + * of a gem object. + * + * The driver's ->gem_free_object callback is responsible for cleaning + * up the dma_buf attachment and references acquired at import time. + * + * Note that the drm gem/prime core does not depend upon drivers setting + * this field any more. So for drivers where this doesn't make sense + * (e.g. virtual devices or a displaylink behind an usb bus) they can + * simply leave it as NULL. + */ + struct dma_buf_attachment *import_attach; +}; + +void drm_gem_object_release(struct drm_gem_object *obj); +void drm_gem_object_free(struct kref *kref); +int drm_gem_object_init(struct drm_device *dev, + struct drm_gem_object *obj, size_t size); +void drm_gem_private_object_init(struct drm_device *dev, + struct drm_gem_object *obj, size_t size); +void drm_gem_vm_open(struct vm_area_struct *vma); +void drm_gem_vm_close(struct vm_area_struct *vma); +int drm_gem_mmap_obj(struct drm_gem_object *obj, unsigned long obj_size, + struct vm_area_struct *vma); +int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); + +static inline void +drm_gem_object_reference(struct drm_gem_object *obj) +{ + kref_get(&obj->refcount); +} + +static inline void +drm_gem_object_unreference(struct drm_gem_object *obj) +{ + if (obj != NULL) + kref_put(&obj->refcount, drm_gem_object_free); +} + +static inline void +drm_gem_object_unreference_unlocked(struct drm_gem_object *obj) +{ + if (obj && !atomic_add_unless(&obj->refcount.refcount, -1, 1)) { + struct drm_device *dev = obj->dev; + + mutex_lock(&dev->struct_mutex); + if (likely(atomic_dec_and_test(&obj->refcount.refcount))) + drm_gem_object_free(&obj->refcount); + mutex_unlock(&dev->struct_mutex); + } +} + +int drm_gem_handle_create(struct drm_file *file_priv, + struct drm_gem_object *obj, + u32 *handlep); +int drm_gem_handle_delete(struct drm_file *filp, u32 handle); + + +void drm_gem_free_mmap_offset(struct drm_gem_object *obj); +int drm_gem_create_mmap_offset(struct drm_gem_object *obj); +int drm_gem_create_mmap_offset_size(struct drm_gem_object *obj, size_t size); + +struct page **drm_gem_get_pages(struct drm_gem_object *obj); +void drm_gem_put_pages(struct drm_gem_object *obj, struct page **pages, + bool dirty, bool accessed); + +struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev, + struct drm_file *filp, + u32 handle); +int drm_gem_dumb_destroy(struct drm_file *file, + struct drm_device *dev, + uint32_t handle); + +#endif /* __DRM_GEM_H__ */ diff --git a/include/drm/drm_gem_cma_helper.h b/include/drm/drm_gem_cma_helper.h index 2a3cea91606d..42f11f3a8d39 100644 --- a/include/drm/drm_gem_cma_helper.h +++ b/include/drm/drm_gem_cma_helper.h @@ -2,6 +2,7 @@ #define __DRM_GEM_CMA_HELPER_H__ #include <drm/drmP.h> +#include <drm/drm_gem.h> struct drm_gem_cma_object { struct drm_gem_object base; |