Merge git://proxy01.pd.intel.com:9419/git/mesa/drm into crestline

1 files changed, 470 insertions, 0 deletions

diff --git a/linux-core/drm_objects.h b/linux-core/drm_objects.h
new file mode 100644
index 00000000..98228ada
--- /dev/null
+++ b/linux-core/drm_objects.h
@@ -0,0 +1,470 @@
+/**************************************************************************
+ * 
+ * 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_OJBECTS_H
+#define DRM_HAS_TTM
+
+struct drm_device;
+
+/***************************************************
+ * User space objects. (drm_object.c)
+ */
+
+#define drm_user_object_entry(_ptr, _type, _member) container_of(_ptr, _type, _member)
+
+typedef enum {
+	drm_fence_type,
+	drm_buffer_type,
+	drm_ttm_type
+	    /*
+	     * Add other user space object types here.
+	     */
+} drm_object_type_t;
+
+/*
+ * 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.
+ */
+
+typedef struct drm_user_object {
+	drm_hash_item_t hash;
+	struct list_head list;
+	drm_object_type_t type;
+	atomic_t refcount;
+	int shareable;
+	drm_file_t *owner;
+	void (*ref_struct_locked) (drm_file_t * priv,
+				   struct drm_user_object * obj,
+				   drm_ref_t ref_action);
+	void (*unref) (drm_file_t * priv, struct drm_user_object * obj,
+		       drm_ref_t unref_action);
+	void (*remove) (drm_file_t * priv, struct drm_user_object * obj);
+} drm_user_object_t;
+
+/*
+ * 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.
+ */
+
+typedef struct drm_ref_object {
+	drm_hash_item_t hash;
+	struct list_head list;
+	atomic_t refcount;
+	drm_ref_t unref_action;
+} drm_ref_object_t;
+
+/**
+ * Must be called with the struct_mutex held.
+ */
+
+extern int drm_add_user_object(drm_file_t * priv, drm_user_object_t * item,
+			       int shareable);
+/**
+ * Must be called with the struct_mutex held.
+ */
+
+extern drm_user_object_t *drm_lookup_user_object(drm_file_t * 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(drm_file_t * priv, drm_user_object_t * item);
+
+/*
+ * Must be called with the struct_mutex held. May temporarily release it.
+ */
+
+extern int drm_add_ref_object(drm_file_t * priv,
+			      drm_user_object_t * referenced_object,
+			      drm_ref_t ref_action);
+
+/*
+ * Must be called with the struct_mutex held.
+ */
+
+drm_ref_object_t *drm_lookup_ref_object(drm_file_t * priv,
+					drm_user_object_t * referenced_object,
+					drm_ref_t 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(drm_file_t * priv, drm_ref_object_t * item);
+extern int drm_user_object_ref(drm_file_t * priv, uint32_t user_token,
+			       drm_object_type_t type,
+			       drm_user_object_t ** object);
+extern int drm_user_object_unref(drm_file_t * priv, uint32_t user_token,
+				 drm_object_type_t type);
+
+/***************************************************
+ * Fence objects. (drm_fence.c)
+ */
+
+typedef struct drm_fence_object {
+	drm_user_object_t base;
+	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;
+} drm_fence_object_t;
+
+#define _DRM_FENCE_CLASSES 8
+#define _DRM_FENCE_TYPE_EXE 0x00
+
+typedef 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;
+} drm_fence_class_manager_t;
+
+typedef struct drm_fence_manager {
+	int initialized;
+	rwlock_t lock;
+	drm_fence_class_manager_t class[_DRM_FENCE_CLASSES];
+	uint32_t num_classes;
+	atomic_t count;
+} drm_fence_manager_t;
+
+typedef 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);
+} drm_fence_driver_t;
+
+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_device *dev,
+				  drm_fence_object_t * fence, uint32_t type);
+extern int drm_fence_object_signaled(drm_fence_object_t * fence, uint32_t type);
+extern void drm_fence_usage_deref_locked(struct drm_device *dev,
+					 drm_fence_object_t * fence);
+extern void drm_fence_usage_deref_unlocked(struct drm_device *dev,
+					   drm_fence_object_t * fence);
+extern int drm_fence_object_wait(struct drm_device *dev,
+				 drm_fence_object_t * 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,
+				   drm_fence_object_t ** c_fence);
+extern int drm_fence_add_user_object(drm_file_t * priv,
+				     drm_fence_object_t * fence, int shareable);
+extern int drm_fence_ioctl(DRM_IOCTL_ARGS);
+
+/**************************************************
+ *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
+
+typedef struct drm_ttm_backend {
+	void *private;
+	uint32_t flags;
+	uint32_t drm_map_type;
+	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);
+} drm_ttm_backend_t;
+
+typedef 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;
+	drm_ttm_backend_t *be;
+	enum {
+		ttm_bound,
+		ttm_evicted,
+		ttm_unbound,
+		ttm_unpopulated,
+	} state;
+
+} drm_ttm_t;
+
+extern drm_ttm_t *drm_ttm_init(struct drm_device *dev, unsigned long size);
+extern int drm_bind_ttm(drm_ttm_t * ttm, int cached, unsigned long aper_offset);
+extern void drm_ttm_unbind(drm_ttm_t * ttm);
+extern void drm_ttm_evict(drm_ttm_t * ttm);
+extern void drm_ttm_fixup_caching(drm_ttm_t * ttm);
+extern struct page *drm_ttm_get_page(drm_ttm_t * 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(drm_ttm_t * 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)
+ */
+
+typedef struct drm_bo_mem_reg {
+	drm_mm_node_t *mm_node;
+	unsigned long size;
+	unsigned long num_pages;
+	uint32_t page_alignment;
+	uint32_t mem_type;
+	uint32_t flags;
+	uint32_t mask;
+} drm_bo_mem_reg_t;
+
+typedef struct drm_buffer_object {
+	struct drm_device *dev;
+	drm_user_object_t 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;
+	drm_bo_type_t type;
+	unsigned long offset;
+	atomic_t mapped;
+	drm_bo_mem_reg_t mem;
+
+	struct list_head lru;
+	struct list_head ddestroy;
+
+	uint32_t fence_type;
+	uint32_t fence_class;
+	drm_fence_object_t *fence;
+	uint32_t priv_flags;
+	wait_queue_head_t event_queue;
+	struct mutex mutex;
+
+	/* For pinned buffers */
+	drm_mm_node_t *pinned_node;
+	uint32_t pinned_mem_type;
+	struct list_head pinned_lru;
+
+	/* For vm */
+
+	drm_ttm_t *ttm;
+	drm_map_list_t 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
+
+} drm_buffer_object_t;
+
+#define _DRM_BO_FLAG_UNFENCED 0x00000001
+#define _DRM_BO_FLAG_EVICTED  0x00000002
+
+typedef struct drm_mem_type_manager {
+	int has_type;
+	int use_type;
+	drm_mm_t 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;
+} drm_mem_type_manager_t;
+
+#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 */
+
+typedef struct drm_buffer_manager {
+	struct mutex init_mutex;
+	struct mutex evict_mutex;
+	int nice_mode;
+	int initialized;
+	drm_file_t *last_to_validate;
+	drm_mem_type_manager_t 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;
+} drm_buffer_manager_t;
+
+typedef 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;
+	drm_ttm_backend_t *(*create_ttm_backend_entry)
+	 (struct drm_device * dev);
+	int (*fence_type) (struct drm_buffer_object *bo, uint32_t * class, uint32_t * type);
+	int (*invalidate_caches) (struct drm_device * dev, uint32_t flags);
+	int (*init_mem_type) (struct drm_device * dev, uint32_t type,
+			      drm_mem_type_manager_t * 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);
+} drm_bo_driver_t;
+
+/*
+ * buffer objects (drm_bo.c)
+ */
+
+extern int drm_bo_ioctl(DRM_IOCTL_ARGS);
+extern int drm_mm_init_ioctl(DRM_IOCTL_ARGS);
+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,
+			     drm_bo_mem_reg_t * mem,
+			     unsigned long *bus_base,
+			     unsigned long *bus_offset,
+			     unsigned long *bus_size);
+extern int drm_mem_reg_is_pci(struct drm_device *dev, drm_bo_mem_reg_t * mem);
+
+extern void drm_bo_usage_deref_locked(drm_buffer_object_t * bo);
+extern int drm_fence_buffer_objects(drm_file_t * priv,
+				    struct list_head *list,
+				    uint32_t fence_flags,
+				    drm_fence_object_t * fence,
+				    drm_fence_object_t ** used_fence);
+extern void drm_bo_add_to_lru(drm_buffer_object_t * bo);
+extern int drm_bo_wait(drm_buffer_object_t * bo, int lazy, int ignore_signals,
+		       int no_wait);
+extern int drm_bo_mem_space(drm_buffer_object_t * bo,
+			    drm_bo_mem_reg_t * mem, int no_wait);
+extern int drm_bo_move_buffer(drm_buffer_object_t * bo, uint32_t new_mem_flags,
+			      int no_wait, int move_unfenced);
+
+/*
+ * Buffer object memory move helpers.
+ * drm_bo_move.c
+ */
+
+extern int drm_bo_move_ttm(drm_buffer_object_t * bo,
+			   int evict, int no_wait, drm_bo_mem_reg_t * new_mem);
+extern int drm_bo_move_memcpy(drm_buffer_object_t * bo,
+			      int evict,
+			      int no_wait, drm_bo_mem_reg_t * new_mem);
+extern int drm_bo_move_accel_cleanup(drm_buffer_object_t * bo,
+				     int evict,
+				     int no_wait,
+				     uint32_t fence_class,
+				     uint32_t fence_type,
+				     uint32_t fence_flags,
+				     drm_bo_mem_reg_t * new_mem);
+
+#endif