src/gallium/winsys/drm/intel/gem/intel_be_device.h

   1
   2 #ifndef INTEL_DRM_DEVICE_H
   3 #define INTEL_DRM_DEVICE_H
   4
   5 #include "pipe/internal/p_winsys_screen.h"
   6 #include "pipe/p_context.h"
   7
   8 #include "drm.h"
   9 #include "intel_bufmgr.h"
  10
  11 /*
  12  * Device
  13  */
  14
  15 struct intel_be_device
  16 {
  17         struct pipe_winsys base;
  18
  19         int fd; /**< Drm file discriptor */
  20
  21         unsigned id;
  22
  23         size_t max_batch_size;
  24         size_t max_vertex_size;
  25
  26         struct {
  27                 drm_intel_bufmgr *gem;
  28         } pools;
  29 };
  30
  31 static INLINE struct intel_be_device *
  32 intel_be_device(struct pipe_winsys *winsys)
  33 {
  34         return (struct intel_be_device *)winsys;
  35 }
  36
  37 boolean
  38 intel_be_init_device(struct intel_be_device *device, int fd, unsigned id);
  39
  40 /*
  41  * Buffer
  42  */
  43
  44 struct intel_be_buffer {
  45         struct pipe_buffer base;
  46         drm_intel_bo *bo;
  47         boolean flinked;
  48         unsigned flink;
  49 };
  50
  51 /**
  52  * Create a be buffer from a drm bo handle.
  53  *
  54  * Takes a reference.
  55  */
  56 struct pipe_buffer *
  57 intel_be_buffer_from_handle(struct pipe_screen *screen,
  58                             const char* name, unsigned handle);
  59
  60 /**
  61  * Gets a handle from a buffer.
  62  *
  63  * If buffer is destroyed handle may become invalid.
  64  */
  65 boolean
  66 intel_be_handle_from_buffer(struct pipe_screen *screen,
  67                             struct pipe_buffer *buffer,
  68                             unsigned *handle);
  69
  70 /**
  71  * Gets the global handle from a buffer.
  72  *
  73  * If buffer is destroyed handle may become invalid.
  74  */
  75 boolean
  76 intel_be_global_handle_from_buffer(struct pipe_screen *screen,
  77                                    struct pipe_buffer *buffer,
  78                                    unsigned *handle);
  79
  80 static INLINE struct intel_be_buffer *
  81 intel_be_buffer(struct pipe_buffer *buf)
  82 {
  83         return (struct intel_be_buffer *)buf;
  84 }
  85
  86 static INLINE drm_intel_bo *
  87 intel_bo(struct pipe_buffer *buf)
  88 {
  89         return intel_be_buffer(buf)->bo;
  90 }
  91
  92 #endif