diff options
Diffstat (limited to 'linux-core/drm_objects.h')
| -rw-r--r-- | linux-core/drm_objects.h | 290 |
1 files changed, 170 insertions, 120 deletions
diff --git a/linux-core/drm_objects.h b/linux-core/drm_objects.h index d8e8ee32..925b4d67 100644 --- a/linux-core/drm_objects.h +++ b/linux-core/drm_objects.h @@ -34,110 +34,201 @@ struct drm_device; struct drm_bo_mem_reg; -/*************************************************** - * User space objects. (drm_object.c) - */ - -#define drm_user_object_entry(_ptr, _type, _member) container_of(_ptr, _type, _member) - -enum drm_object_type { - drm_fence_type, - drm_buffer_type, - drm_lock_type, - /* - * Add other user space object types here. - */ - drm_driver_type0 = 256, - drm_driver_type1, - drm_driver_type2, - drm_driver_type3, - drm_driver_type4 +#define DRM_FENCE_FLAG_EMIT 0x00000001 +#define DRM_FENCE_FLAG_SHAREABLE 0x00000002 +/** + * On hardware with no interrupt events for operation completion, + * indicates that the kernel should sleep while waiting for any blocking + * operation to complete rather than spinning. + * + * Has no effect otherwise. + */ +#define DRM_FENCE_FLAG_WAIT_LAZY 0x00000004 +#define DRM_FENCE_FLAG_NO_USER 0x00000010 + +/* Reserved for driver use */ +#define DRM_FENCE_MASK_DRIVER 0xFF000000 + +#define DRM_FENCE_TYPE_EXE 0x00000001 + +struct drm_fence_arg { + unsigned int handle; + unsigned int fence_class; + unsigned int type; + unsigned int flags; + unsigned int signaled; + unsigned int error; + unsigned int sequence; + unsigned int pad64; + uint64_t expand_pad[2]; /*Future expansion */ }; +/* Buffer permissions, referring to how the GPU uses the buffers. + * these translate to fence types used for the buffers. + * Typically a texture buffer is read, A destination buffer is write and + * a command (batch-) buffer is exe. Can be or-ed together. + */ + +#define DRM_BO_FLAG_READ (1ULL << 0) +#define DRM_BO_FLAG_WRITE (1ULL << 1) +#define DRM_BO_FLAG_EXE (1ULL << 2) + /* - * A user object is a structure that helps the drm give out user handles - * to kernel internal objects and to keep track of these objects so that - * they can be destroyed, for example when the user space process exits. - * Designed to be accessible using a user space 32-bit handle. - */ - -struct drm_user_object { - struct drm_hash_item hash; - struct list_head list; - enum drm_object_type type; - atomic_t refcount; - int shareable; - struct drm_file *owner; - void (*ref_struct_locked) (struct drm_file *priv, - struct drm_user_object *obj, - enum drm_ref_type ref_action); - void (*unref) (struct drm_file *priv, struct drm_user_object *obj, - enum drm_ref_type unref_action); - void (*remove) (struct drm_file *priv, struct drm_user_object *obj); -}; + * All of the bits related to access mode + */ +#define DRM_BO_MASK_ACCESS (DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE | DRM_BO_FLAG_EXE) +/* + * Status flags. Can be read to determine the actual state of a buffer. + * Can also be set in the buffer mask before validation. + */ /* - * A ref object is a structure which is used to - * keep track of references to user objects and to keep track of these - * references so that they can be destroyed for example when the user space - * process exits. Designed to be accessible using a pointer to the _user_ object. + * Mask: Never evict this buffer. Not even with force. This type of buffer is only + * available to root and must be manually removed before buffer manager shutdown + * or lock. + * Flags: Acknowledge */ +#define DRM_BO_FLAG_NO_EVICT (1ULL << 4) -struct drm_ref_object { - struct drm_hash_item hash; - struct list_head list; - atomic_t refcount; - enum drm_ref_type unref_action; -}; +/* + * Mask: Require that the buffer is placed in mappable memory when validated. + * If not set the buffer may or may not be in mappable memory when validated. + * Flags: If set, the buffer is in mappable memory. + */ +#define DRM_BO_FLAG_MAPPABLE (1ULL << 5) -/** - * Must be called with the struct_mutex held. +/* Mask: The buffer should be shareable with other processes. + * Flags: The buffer is shareable with other processes. */ +#define DRM_BO_FLAG_SHAREABLE (1ULL << 6) -extern int drm_add_user_object(struct drm_file *priv, struct drm_user_object *item, - int shareable); -/** - * Must be called with the struct_mutex held. +/* Mask: If set, place the buffer in cache-coherent memory if available. + * If clear, never place the buffer in cache coherent memory if validated. + * Flags: The buffer is currently in cache-coherent memory. + */ +#define DRM_BO_FLAG_CACHED (1ULL << 7) + +/* Mask: Make sure that every time this buffer is validated, + * it ends up on the same location provided that the memory mask is the same. + * The buffer will also not be evicted when claiming space for + * other buffers. Basically a pinned buffer but it may be thrown out as + * part of buffer manager shutdown or locking. + * Flags: Acknowledge. */ +#define DRM_BO_FLAG_NO_MOVE (1ULL << 8) + +/* Mask: Make sure the buffer is in cached memory when mapped. In conjunction + * with DRM_BO_FLAG_CACHED it also allows the buffer to be bound into the GART + * with unsnooped PTEs instead of snooped, by using chipset-specific cache + * flushing at bind time. A better name might be DRM_BO_FLAG_TT_UNSNOOPED, + * as the eviction to local memory (TTM unbind) on map is just a side effect + * to prevent aggressive cache prefetch from the GPU disturbing the cache + * management that the DRM is doing. + * + * Flags: Acknowledge. + * Buffers allocated with this flag should not be used for suballocators + * This type may have issues on CPUs with over-aggressive caching + * http://marc.info/?l=linux-kernel&m=102376926732464&w=2 + */ +#define DRM_BO_FLAG_CACHED_MAPPED (1ULL << 19) -extern struct drm_user_object *drm_lookup_user_object(struct drm_file *priv, - uint32_t key); + +/* Mask: Force DRM_BO_FLAG_CACHED flag strictly also if it is set. + * Flags: Acknowledge. + */ +#define DRM_BO_FLAG_FORCE_CACHING (1ULL << 13) /* - * Must be called with the struct_mutex held. May temporarily release it. + * Mask: Force DRM_BO_FLAG_MAPPABLE flag strictly also if it is clear. + * Flags: Acknowledge. */ +#define DRM_BO_FLAG_FORCE_MAPPABLE (1ULL << 14) +#define DRM_BO_FLAG_TILE (1ULL << 15) -extern int drm_add_ref_object(struct drm_file *priv, - struct drm_user_object *referenced_object, - enum drm_ref_type ref_action); +/* + * Memory type flags that can be or'ed together in the mask, but only + * one appears in flags. + */ + +/* System memory */ +#define DRM_BO_FLAG_MEM_LOCAL (1ULL << 24) +/* Translation table memory */ +#define DRM_BO_FLAG_MEM_TT (1ULL << 25) +/* Vram memory */ +#define DRM_BO_FLAG_MEM_VRAM (1ULL << 26) +/* Up to the driver to define. */ +#define DRM_BO_FLAG_MEM_PRIV0 (1ULL << 27) +#define DRM_BO_FLAG_MEM_PRIV1 (1ULL << 28) +#define DRM_BO_FLAG_MEM_PRIV2 (1ULL << 29) +#define DRM_BO_FLAG_MEM_PRIV3 (1ULL << 30) +#define DRM_BO_FLAG_MEM_PRIV4 (1ULL << 31) +/* We can add more of these now with a 64-bit flag type */ /* - * Must be called with the struct_mutex held. + * This is a mask covering all of the memory type flags; easier to just + * use a single constant than a bunch of | values. It covers + * DRM_BO_FLAG_MEM_LOCAL through DRM_BO_FLAG_MEM_PRIV4 + */ +#define DRM_BO_MASK_MEM 0x00000000FF000000ULL +/* + * This adds all of the CPU-mapping options in with the memory + * type to label all bits which change how the page gets mapped */ +#define DRM_BO_MASK_MEMTYPE (DRM_BO_MASK_MEM | \ + DRM_BO_FLAG_CACHED_MAPPED | \ + DRM_BO_FLAG_CACHED | \ + DRM_BO_FLAG_MAPPABLE) + +/* Driver-private flags */ +#define DRM_BO_MASK_DRIVER 0xFFFF000000000000ULL -struct drm_ref_object *drm_lookup_ref_object(struct drm_file *priv, - struct drm_user_object *referenced_object, - enum drm_ref_type ref_action); /* - * Must be called with the struct_mutex held. - * If "item" has been obtained by a call to drm_lookup_ref_object. You may not - * release the struct_mutex before calling drm_remove_ref_object. - * This function may temporarily release the struct_mutex. + * Don't block on validate and map. Instead, return EBUSY. + */ +#define DRM_BO_HINT_DONT_BLOCK 0x00000002 +/* + * Don't place this buffer on the unfenced list. This means + * that the buffer will not end up having a fence associated + * with it as a result of this operation + */ +#define DRM_BO_HINT_DONT_FENCE 0x00000004 +/** + * On hardware with no interrupt events for operation completion, + * indicates that the kernel should sleep while waiting for any blocking + * operation to complete rather than spinning. + * + * Has no effect otherwise. + */ +#define DRM_BO_HINT_WAIT_LAZY 0x00000008 +/* + * The client has compute relocations refering to this buffer using the + * offset in the presumed_offset field. If that offset ends up matching + * where this buffer lands, the kernel is free to skip executing those + * relocations */ +#define DRM_BO_HINT_PRESUMED_OFFSET 0x00000010 + + +#define DRM_BO_MEM_LOCAL 0 +#define DRM_BO_MEM_TT 1 +#define DRM_BO_MEM_VRAM 2 +#define DRM_BO_MEM_PRIV0 3 +#define DRM_BO_MEM_PRIV1 4 +#define DRM_BO_MEM_PRIV2 5 +#define DRM_BO_MEM_PRIV3 6 +#define DRM_BO_MEM_PRIV4 7 + +#define DRM_BO_MEM_TYPES 8 /* For now. */ + +#define DRM_BO_LOCK_UNLOCK_BM (1 << 0) +#define DRM_BO_LOCK_IGNORE_NO_EVICT (1 << 1) -extern void drm_remove_ref_object(struct drm_file *priv, struct drm_ref_object *item); -extern int drm_user_object_ref(struct drm_file *priv, uint32_t user_token, - enum drm_object_type type, - struct drm_user_object **object); -extern int drm_user_object_unref(struct drm_file *priv, uint32_t user_token, - enum drm_object_type type); /*************************************************** * Fence objects. (drm_fence.c) */ struct drm_fence_object { - struct drm_user_object base; struct drm_device *dev; atomic_t usage; @@ -470,7 +561,6 @@ enum drm_bo_type { struct drm_buffer_object { struct drm_device *dev; - struct drm_user_object base; /* * If there is a possibility that the usage variable is zero, @@ -546,7 +636,7 @@ struct drm_mem_type_manager { }; struct drm_bo_lock { - struct drm_user_object base; + // struct drm_user_object base; wait_queue_head_t queue; atomic_t write_lock_pending; atomic_t readers; @@ -655,22 +745,10 @@ struct drm_bo_driver { /* * buffer objects (drm_bo.c) */ -extern int drm_bo_create_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); -extern int drm_bo_destroy_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); -extern int drm_bo_map_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); -extern int drm_bo_unmap_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); -extern int drm_bo_reference_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); +int drm_bo_do_validate(struct drm_buffer_object *bo, + uint64_t flags, uint64_t mask, uint32_t hint, + uint32_t fence_class); extern int drm_bo_set_pin(struct drm_device *dev, struct drm_buffer_object *bo, int pin); -extern int drm_bo_unreference_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); -extern int drm_bo_wait_idle_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); -extern int drm_bo_info_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); -extern int drm_bo_setstatus_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); -extern int drm_mm_init_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); -extern int drm_mm_takedown_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); -extern int drm_mm_lock_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); -extern int drm_mm_unlock_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); -extern int drm_mm_info_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); -extern int drm_bo_version_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); extern int drm_bo_driver_finish(struct drm_device *dev); extern int drm_bo_driver_init(struct drm_device *dev); extern int drm_bo_pci_offset(struct drm_device *dev, @@ -707,18 +785,9 @@ extern int drm_bo_clean_mm(struct drm_device *dev, unsigned mem_type, int kern_c extern int drm_bo_init_mm(struct drm_device *dev, unsigned type, unsigned long p_offset, unsigned long p_size, int kern_init); -extern int drm_bo_handle_validate(struct drm_file *file_priv, uint32_t handle, - uint64_t flags, uint64_t mask, uint32_t hint, - uint32_t fence_class, - struct drm_bo_info_rep *rep, - struct drm_buffer_object **bo_rep); extern struct drm_buffer_object *drm_lookup_buffer_object(struct drm_file *file_priv, uint32_t handle, int check_owner); -extern int drm_bo_do_validate(struct drm_buffer_object *bo, - uint64_t flags, uint64_t mask, uint32_t hint, - uint32_t fence_class, - struct drm_bo_info_rep *rep); extern int drm_bo_evict_cached(struct drm_buffer_object *bo); extern void drm_bo_takedown_vm_locked(struct drm_buffer_object *bo); @@ -766,8 +835,6 @@ extern int drm_bo_pfn_prot(struct drm_buffer_object *bo, unsigned long dst_offset, unsigned long *pfn, pgprot_t *prot); -extern void drm_bo_fill_rep_arg(struct drm_buffer_object *bo, - struct drm_bo_info_rep *rep); /* @@ -812,23 +879,6 @@ extern int drm_mem_reg_ioremap(struct drm_device *dev, struct drm_bo_mem_reg * m void **virtual); extern void drm_mem_reg_iounmap(struct drm_device *dev, struct drm_bo_mem_reg * mem, void *virtual); -/* - * drm_bo_lock.c - * Simple replacement for the hardware lock on buffer manager init and clean. - */ - - -extern void drm_bo_init_lock(struct drm_bo_lock *lock); -extern void drm_bo_read_unlock(struct drm_bo_lock *lock); -extern int drm_bo_read_lock(struct drm_bo_lock *lock, - int interruptible); -extern int drm_bo_write_lock(struct drm_bo_lock *lock, - int interruptible, - struct drm_file *file_priv); - -extern int drm_bo_write_unlock(struct drm_bo_lock *lock, - struct drm_file *file_priv); - #ifdef CONFIG_DEBUG_MUTEXES #define DRM_ASSERT_LOCKED(_mutex) \ BUG_ON(!mutex_is_locked(_mutex) || \ |