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AgeCommit message (Collapse)Author
2007-02-07Checkpoint commit.Thomas Hellstrom
Flag handling and memory type selection cleanup. glxgears won't start.
2007-02-02Make vm handle buffer objects instead of ttm objects.Thomas Hellstrom
Remove ttm objects. Make vm aware of PCI memory type buffer objects. (Only works for pre 2.6.16 kernels for now).
2007-01-31Make the utility runnable also for normal users.Thomas Hellstrom
2007-01-30Indent according to xorg rules.Thomas Hellstrom
2007-01-30Add license header.Thomas Hellstrom
2007-01-30Add some relevant tests for the new buffer object interface.Thomas Hellstrom
2007-01-30Add the ttmtest test utility.Thomas Hellstrom
2005-02-18Bug #2567: Fix reversed memset arguments. (David Krause)Adam Jackson
2005-01-24use libdrm after it was updatedDave Airlie
2004-10-10Forgot to add the new MakefileJon Smirl
2004-10-10Make the test programs buildJon Smirl
2004-08-31Apply patch from Bryan Stine bugzilla #1227Dave Airlie
2003-04-25Targets for building dristat and drmstat.David Dawes
2003-04-24Minor cleanups for dri/drmstat test progs (Both still need targets for newLeif Delgass
Makefile)
2003-04-24Remove #if 0'd code and some unused string functionsKeith Whitwell
2001-02-28Implement drmOpen* without /proc dependence (Fallback to /proc is includedRik Faith
for backward compatibility.) Move statistic-gathering drm* calls from dristat.c to xf86drm.c
2001-02-15Merge mga-1-0-0-branch into trunk.Gareth Hughes
2000-06-08Merged glxmisc-3-0-0Brian Paul
2000-04-04Merged mga branch with trunkJeff Hartmann
2000-03-16Merge with 4.0Jeff Hartmann
2000-02-22Import of XFree86 3.9.18Kevin E Martin
2000-01-06Import of XFree86 3.9.17Rik Faith
1999-12-18Rename the device to be /dev/dri instead of /dev/dri to avoid a conflict.Daryll Strauss
Rename proc entry from /proc/graphics to /proc/dri to be consistent.
1999-12-07Move Mesa to xc/extras Update to the latest Mesa 3.2 code Fix the Q3DemoDaryll Strauss
bugs (white railgun and texture mapping) Simplify driver texture mapping routines Fix device driver for 2.3 kernels Improve performance
1999-12-05First DRI release of 3dfx driver.Daryll Strauss
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/**************************************************************************
 *
 * Copyright (c) 2006-2007 Tungsten Graphics, Inc., Cedar Park, TX., USA
 * All Rights Reserved.
 *
 * 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, sub license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
 * THE COPYRIGHT HOLDERS, AUTHORS 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.
 *
 **************************************************************************/
/*
 * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
 */

#ifndef _DRM_OBJECTS_H
#define _DRM_OBJECTS_H

struct drm_device;

/***************************************************
 * 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_ttm_type
	    /*
	     * Add other user space object types here.
	     */
};

/*
 * 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);
};

/*
 * 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.
 */

struct drm_ref_object {
	struct drm_hash_item hash;
	struct list_head list;
	atomic_t refcount;
	enum drm_ref_type unref_action;
};

/**
 * Must be called with the struct_mutex held.
 */

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.
 */

extern struct drm_user_object *drm_lookup_user_object(struct drm_file * priv,
						 uint32_t key);

/*
 * Must be called with the struct_mutex held.
 * If "item" has been obtained by a call to drm_lookup_user_object. You may not
 * release the struct_mutex before calling drm_remove_ref_object.
 * This function may temporarily release the struct_mutex.
 */

extern int drm_remove_user_object(struct drm_file * priv, struct drm_user_object * item);

/*
 * Must be called with the struct_mutex held. May temporarily release it.
 */

extern int drm_add_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.
 */

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.
 */

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;

	/*
	 * The below three fields are protected by the fence manager spinlock.
	 */

	struct list_head ring;
	int class;
	uint32_t native_type;
	uint32_t type;
	uint32_t signaled;
	uint32_t sequence;
	uint32_t flush_mask;
	uint32_t submitted_flush;
};

#define _DRM_FENCE_CLASSES 8
#define _DRM_FENCE_TYPE_EXE 0x00

struct drm_fence_class_manager {
	struct list_head ring;
	uint32_t pending_flush;
	wait_queue_head_t fence_queue;
	int pending_exe_flush;
	uint32_t last_exe_flush;
	uint32_t exe_flush_sequence;
};

struct drm_fence_manager {
	int initialized;
	rwlock_t lock;
	struct drm_fence_class_manager class[_DRM_FENCE_CLASSES];
	uint32_t num_classes;
	atomic_t count;
};

struct drm_fence_driver {
	uint32_t num_classes;
	uint32_t wrap_diff;
	uint32_t flush_diff;
	uint32_t sequence_mask;
	int lazy_capable;
	int (*has_irq) (struct drm_device * dev, uint32_t class,
			uint32_t flags);
	int (*emit) (struct drm_device * dev, uint32_t class, uint32_t flags,
		     uint32_t * breadcrumb, uint32_t * native_type);
	void (*poke_flush) (struct drm_device * dev, uint32_t class);
};

extern void drm_fence_handler(struct drm_device *dev, uint32_t class,
			      uint32_t sequence, uint32_t type);
extern void drm_fence_manager_init(struct drm_device *dev);
extern void drm_fence_manager_takedown(struct drm_device *dev);
extern void drm_fence_flush_old(struct drm_device *dev, uint32_t class,
				uint32_t sequence);
extern int drm_fence_object_flush(struct drm_fence_object * fence, uint32_t type);
extern int drm_fence_object_signaled(struct drm_fence_object * fence,
				     uint32_t type, int flush);
extern void drm_fence_usage_deref_locked(struct drm_fence_object ** fence);
extern void drm_fence_usage_deref_unlocked(struct drm_fence_object ** fence);
extern struct drm_fence_object *drm_fence_reference_locked(struct drm_fence_object *src);
extern void drm_fence_reference_unlocked(struct drm_fence_object **dst,
					 struct drm_fence_object *src);
extern int drm_fence_object_wait(struct drm_fence_object * fence,
				 int lazy, int ignore_signals, uint32_t mask);
extern int drm_fence_object_create(struct drm_device *dev, uint32_t type,
				   uint32_t fence_flags, uint32_t class,
				   struct drm_fence_object ** c_fence);
extern int drm_fence_add_user_object(struct drm_file * priv,
				     struct drm_fence_object * fence, int shareable);

extern int drm_fence_create_ioctl(struct drm_device *dev, void *data,
				  struct drm_file *file_priv);
extern int drm_fence_destroy_ioctl(struct drm_device *dev, void *data,
				   struct drm_file *file_priv);
extern int drm_fence_reference_ioctl(struct drm_device *dev, void *data,
				     struct drm_file *file_priv);
extern int drm_fence_unreference_ioctl(struct drm_device *dev, void *data,
				       struct drm_file *file_priv);
extern int drm_fence_signaled_ioctl(struct drm_device *dev, void *data,
				    struct drm_file *file_priv);
extern int drm_fence_flush_ioctl(struct drm_device *dev, void *data,
				 struct drm_file *file_priv);
extern int drm_fence_wait_ioctl(struct drm_device *dev, void *data,
				struct drm_file *file_priv);
extern int drm_fence_emit_ioctl(struct drm_device *dev, void *data,
				struct drm_file *file_priv);
extern int drm_fence_buffers_ioctl(struct drm_device *dev, void *data,
				   struct drm_file *file_priv);
/**************************************************
 *TTMs
 */

/*
 * The ttm backend GTT interface. (In our case AGP).
 * Any similar type of device (PCIE?)
 * needs only to implement these functions to be usable with the "TTM" interface.
 * The AGP backend implementation lives in drm_agpsupport.c
 * basically maps these calls to available functions in agpgart.
 * Each drm device driver gets an
 * additional function pointer that creates these types,
 * so that the device can choose the correct aperture.
 * (Multiple AGP apertures, etc.)
 * Most device drivers will let this point to the standard AGP implementation.
 */

#define DRM_BE_FLAG_NEEDS_FREE     0x00000001
#define DRM_BE_FLAG_BOUND_CACHED   0x00000002

struct drm_ttm_backend;
struct drm_ttm_backend_func {
	int (*needs_ub_cache_adjust) (struct drm_ttm_backend * backend);
	int (*populate) (struct drm_ttm_backend * backend,
			 unsigned long num_pages, struct page ** pages);
	void (*clear) (struct drm_ttm_backend * backend);
	int (*bind) (struct drm_ttm_backend * backend,
		     unsigned long offset, int cached);
	int (*unbind) (struct drm_ttm_backend * backend);
	void (*destroy) (struct drm_ttm_backend * backend);
};


struct drm_ttm_backend {
	uint32_t flags;
	int mem_type;
	struct drm_ttm_backend_func *func;
};

struct drm_ttm {
	struct page **pages;
	uint32_t page_flags;
	unsigned long num_pages;
	unsigned long aper_offset;
	atomic_t vma_count;
	struct drm_device *dev;
	int destroy;
	uint32_t mapping_offset;
	struct drm_ttm_backend *be;
	enum {
		ttm_bound,
		ttm_evicted,
		ttm_unbound,
		ttm_unpopulated,
	} state;

};

extern struct drm_ttm *drm_ttm_init(struct drm_device *dev, unsigned long size);
extern int drm_bind_ttm(struct drm_ttm * ttm, int cached, unsigned long aper_offset);
extern void drm_ttm_unbind(struct drm_ttm * ttm);
extern void drm_ttm_evict(struct drm_ttm * ttm);
extern void drm_ttm_fixup_caching(struct drm_ttm * ttm);
extern struct page *drm_ttm_get_page(struct drm_ttm * ttm, int index);

/*
 * Destroy a ttm. The user normally calls drmRmMap or a similar IOCTL to do this,
 * which calls this function iff there are no vmas referencing it anymore. Otherwise it is called
 * when the last vma exits.
 */

extern int drm_destroy_ttm(struct drm_ttm * ttm);

#define DRM_FLAG_MASKED(_old, _new, _mask) {\
(_old) ^= (((_old) ^ (_new)) & (_mask)); \
}

#define DRM_TTM_MASK_FLAGS ((1 << PAGE_SHIFT) - 1)
#define DRM_TTM_MASK_PFN (0xFFFFFFFFU - DRM_TTM_MASK_FLAGS)

/*
 * Page flags.
 */

#define DRM_TTM_PAGE_UNCACHED 0x01
#define DRM_TTM_PAGE_USED     0x02
#define DRM_TTM_PAGE_BOUND    0x04
#define DRM_TTM_PAGE_PRESENT  0x08
#define DRM_TTM_PAGE_VMALLOC  0x10

/***************************************************
 * Buffer objects. (drm_bo.c, drm_bo_move.c)
 */

struct drm_bo_mem_reg {
	struct drm_mm_node *mm_node;
	unsigned long size;
	unsigned long num_pages;
	uint32_t page_alignment;
	uint32_t mem_type;
	uint64_t flags;
	uint64_t mask;
};

struct drm_buffer_object {
	struct drm_device *dev;
	struct drm_user_object base;

	/*
	 * If there is a possibility that the usage variable is zero,
	 * then dev->struct_mutext should be locked before incrementing it.
	 */

	atomic_t usage;
	unsigned long buffer_start;
	enum drm_bo_type type;
	unsigned long offset;
	atomic_t mapped;
	struct drm_bo_mem_reg mem;

	struct list_head lru;
	struct list_head ddestroy;

	uint32_t fence_type;
	uint32_t fence_class;
	struct drm_fence_object *fence;
	uint32_t priv_flags;
	wait_queue_head_t event_queue;
	struct mutex mutex;

	/* For pinned buffers */
	struct drm_mm_node *pinned_node;
	uint32_t pinned_mem_type;
	struct list_head pinned_lru;

	/* For vm */

	struct drm_ttm *ttm;
	struct drm_map_list map_list;
	uint32_t memory_type;
	unsigned long bus_offset;
	uint32_t vm_flags;
	void *iomap;

#ifdef DRM_ODD_MM_COMPAT
	/* dev->struct_mutex only protected. */
	struct list_head vma_list;
	struct list_head p_mm_list;
#endif

};

#define _DRM_BO_FLAG_UNFENCED 0x00000001
#define _DRM_BO_FLAG_EVICTED  0x00000002

struct drm_mem_type_manager {
	int has_type;
	int use_type;
	struct drm_mm manager;
	struct list_head lru;
	struct list_head pinned;
	uint32_t flags;
	uint32_t drm_bus_maptype;
	unsigned long io_offset;
	unsigned long io_size;
	void *io_addr;
};

#define _DRM_FLAG_MEMTYPE_FIXED     0x00000001	/* Fixed (on-card) PCI memory */
#define _DRM_FLAG_MEMTYPE_MAPPABLE  0x00000002	/* Memory mappable */
#define _DRM_FLAG_MEMTYPE_CACHED    0x00000004	/* Cached binding */
#define _DRM_FLAG_NEEDS_IOREMAP     0x00000008	/* Fixed memory needs ioremap
						   before kernel access. */
#define _DRM_FLAG_MEMTYPE_CMA       0x00000010	/* Can't map aperture */
#define _DRM_FLAG_MEMTYPE_CSELECT   0x00000020	/* Select caching */

struct drm_buffer_manager {
	struct mutex init_mutex;
	struct mutex evict_mutex;
	int nice_mode;
	int initialized;
	struct drm_file *last_to_validate;
	struct drm_mem_type_manager man[DRM_BO_MEM_TYPES];
	struct list_head unfenced;
	struct list_head ddestroy;
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
	struct work_struct wq;
#else
	struct delayed_work wq;
#endif
	uint32_t fence_type;
	unsigned long cur_pages;
	atomic_t count;
};

struct drm_bo_driver {
	const uint32_t *mem_type_prio;
	const uint32_t *mem_busy_prio;
	uint32_t num_mem_type_prio;
	uint32_t num_mem_busy_prio;
	struct drm_ttm_backend *(*create_ttm_backend_entry)
	 (struct drm_device * dev);
	int (*fence_type) (struct drm_buffer_object *bo, uint32_t * type);
	int (*invalidate_caches) (struct drm_device * dev, uint64_t flags);
	int (*init_mem_type) (struct drm_device * dev, uint32_t type,
			      struct drm_mem_type_manager * man);
	 uint32_t(*evict_mask) (struct drm_buffer_object *bo);
	int (*move) (struct drm_buffer_object * bo,
		     int evict, int no_wait, struct drm_bo_mem_reg * new_mem);
};

/*
 * 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);
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_op_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_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,
			     struct drm_bo_mem_reg * mem,
			     unsigned long *bus_base,
			     unsigned long *bus_offset,
			     unsigned long *bus_size);
extern int drm_mem_reg_is_pci(struct drm_device *dev, struct drm_bo_mem_reg * mem);

extern void drm_bo_usage_deref_locked(struct drm_buffer_object ** bo);
extern int drm_fence_buffer_objects(struct drm_file * priv,
				    struct list_head *list,
				    uint32_t fence_flags,
				    struct drm_fence_object * fence,
				    struct drm_fence_object ** used_fence);
extern void drm_bo_add_to_lru(struct drm_buffer_object * bo);
extern int drm_bo_wait(struct drm_buffer_object * bo, int lazy, int ignore_signals,
		       int no_wait);
extern int drm_bo_mem_space(struct drm_buffer_object * bo,
			    struct drm_bo_mem_reg * mem, int no_wait);
extern int drm_bo_move_buffer(struct drm_buffer_object * bo, uint32_t new_mem_flags,
			      int no_wait, int move_unfenced);
extern int drm_buffer_object_create(struct drm_device *dev, unsigned long size,
				    enum drm_bo_type type, uint64_t mask,
				    uint32_t hint, uint32_t page_alignment,
				    unsigned long buffer_start,
				    struct drm_buffer_object **bo);
extern int drm_bo_init_mm(struct drm_device *dev, unsigned type,
			  unsigned long p_offset, unsigned long p_size);
extern int drm_bo_clean_mm(struct drm_device *dev, unsigned mem_type);
extern int drm_bo_add_user_object(struct drm_file *file_priv,
				  struct drm_buffer_object *bo, int sharable);
extern void drm_bo_usage_deref_unlocked(struct drm_buffer_object **bo);

/*
 * Buffer object memory move helpers.
 * drm_bo_move.c
 */

extern int drm_bo_move_ttm(struct drm_buffer_object * bo,
			   int evict, int no_wait, struct drm_bo_mem_reg * new_mem);
extern int drm_bo_move_memcpy(struct drm_buffer_object * bo,
			      int evict,
			      int no_wait, struct drm_bo_mem_reg * new_mem);
extern int drm_bo_move_accel_cleanup(struct drm_buffer_object * bo,
				     int evict,
				     int no_wait,
				     uint32_t fence_class,
				     uint32_t fence_type,
				     uint32_t fence_flags,
				     struct drm_bo_mem_reg * new_mem);

extern int drm_mem_reg_ioremap(struct drm_device *dev,
			       struct drm_bo_mem_reg *mem, void **virtual);
extern void drm_mem_reg_iounmap(struct drm_device *dev,
				struct drm_bo_mem_reg *mem, void *virtual);

#ifdef CONFIG_DEBUG_MUTEXES
#define DRM_ASSERT_LOCKED(_mutex)					\
	BUG_ON(!mutex_is_locked(_mutex) ||				\
	       ((_mutex)->owner != current_thread_info()))
#else
#define DRM_ASSERT_LOCKED(_mutex)
#endif

#endif
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-22 03:29:23 +0000