drivers/gpu/drm/vmwgfx/vmwgfx_resource_priv.h

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  27
  28 #ifndef _VMWGFX_RESOURCE_PRIV_H_
  29 #define _VMWGFX_RESOURCE_PRIV_H_
  30
  31 #include "vmwgfx_drv.h"
  32
  33 #define VMW_IDA_ACC_SIZE 128
  34
  35 enum vmw_cmdbuf_res_state {
  36         VMW_CMDBUF_RES_COMMITTED,
  37         VMW_CMDBUF_RES_ADD,
  38         VMW_CMDBUF_RES_DEL
  39 };
  40
  41 /**
  42  * struct vmw_user_resource_conv - Identify a derived user-exported resource
  43  * type and provide a function to convert its ttm_base_object pointer to
  44  * a struct vmw_resource
  45  */
  46 struct vmw_user_resource_conv {
  47         enum ttm_object_type object_type;
  48         struct vmw_resource *(*base_obj_to_res)(struct ttm_base_object *base);
  49         void (*res_free) (struct vmw_resource *res);
  50 };
  51
  52 /**
  53  * struct vmw_res_func - members and functions common for a resource type
  54  *
  55  * @res_type:          Enum that identifies the lru list to use for eviction.
  56  * @needs_backup:      Whether the resource is guest-backed and needs
  57  *                     persistent buffer storage.
  58  * @type_name:         String that identifies the resource type.
  59  * @backup_placement:  TTM placement for backup buffers.
  60  * @may_evict          Whether the resource may be evicted.
  61  * @create:            Create a hardware resource.
  62  * @destroy:           Destroy a hardware resource.
  63  * @bind:              Bind a hardware resource to persistent buffer storage.
  64  * @unbind:            Unbind a hardware resource from persistent
  65  *                     buffer storage.
  66  * @commit_notify:     If the resource is a command buffer managed resource,
  67  *                     callback to notify that a define or remove command
  68  *                     has been committed to the device.
  69  */
  70 struct vmw_res_func {
  71         enum vmw_res_type res_type;
  72         bool needs_backup;
  73         const char *type_name;
  74         struct ttm_placement *backup_placement;
  75         bool may_evict;
  76
  77         int (*create) (struct vmw_resource *res);
  78         int (*destroy) (struct vmw_resource *res);
  79         int (*bind) (struct vmw_resource *res,
  80                      struct ttm_validate_buffer *val_buf);
  81         int (*unbind) (struct vmw_resource *res,
  82                        bool readback,
  83                        struct ttm_validate_buffer *val_buf);
  84         void (*commit_notify)(struct vmw_resource *res,
  85                               enum vmw_cmdbuf_res_state state);
  86 };
  87
  88 /**
  89  * struct vmw_simple_resource_func - members and functions common for the
  90  * simple resource helpers.
  91  * @res_func:  struct vmw_res_func as described above.
  92  * @ttm_res_type:  TTM resource type used for handle recognition.
  93  * @size:  Size of the simple resource information struct.
  94  * @init:  Initialize the simple resource information.
  95  * @hw_destroy:  A resource hw_destroy function.
  96  * @set_arg_handle:  Set the handle output argument of the ioctl create struct.
  97  */
  98 struct vmw_simple_resource_func {
  99         const struct vmw_res_func res_func;
 100         int ttm_res_type;
 101         size_t size;
 102         int (*init)(struct vmw_resource *res, void *data);
 103         void (*hw_destroy)(struct vmw_resource *res);
 104         void (*set_arg_handle)(void *data, u32 handle);
 105 };
 106
 107 /**
 108  * struct vmw_simple_resource - Kernel only side simple resource
 109  * @res: The resource we derive from.
 110  * @func: The method and member virtual table.
 111  */
 112 struct vmw_simple_resource {
 113         struct vmw_resource res;
 114         const struct vmw_simple_resource_func *func;
 115 };
 116
 117 int vmw_resource_alloc_id(struct vmw_resource *res);
 118 void vmw_resource_release_id(struct vmw_resource *res);
 119 int vmw_resource_init(struct vmw_private *dev_priv, struct vmw_resource *res,
 120                       bool delay_id,
 121                       void (*res_free) (struct vmw_resource *res),
 122                       const struct vmw_res_func *func);
 123 void vmw_resource_activate(struct vmw_resource *res,
 124                            void (*hw_destroy) (struct vmw_resource *));
 125 int
 126 vmw_simple_resource_create_ioctl(struct drm_device *dev,
 127                                  void *data,
 128                                  struct drm_file *file_priv,
 129                                  const struct vmw_simple_resource_func *func);
 130 struct vmw_resource *
 131 vmw_simple_resource_lookup(struct ttm_object_file *tfile,
 132                            uint32_t handle,
 133                            const struct vmw_simple_resource_func *func);
 134 #endif