-#define BO_ALLOC_FOR_RENDER (1<<0)
-
-drm_bacon_bo *drm_bacon_bo_alloc(drm_bacon_bufmgr *bufmgr, const char *name,
- unsigned long size, unsigned int alignment);
-drm_bacon_bo *drm_bacon_bo_alloc_for_render(drm_bacon_bufmgr *bufmgr,
- const char *name,
- unsigned long size,
- unsigned int alignment);
-drm_bacon_bo *drm_bacon_bo_alloc_userptr(drm_bacon_bufmgr *bufmgr,
- const char *name,
- void *addr, uint32_t tiling_mode,
- uint32_t stride, unsigned long size,
- unsigned long flags);
-drm_bacon_bo *drm_bacon_bo_alloc_tiled(drm_bacon_bufmgr *bufmgr,
- const char *name,
- int x, int y, int cpp,
- uint32_t *tiling_mode,
- unsigned long *pitch,
- unsigned long flags);
-void drm_bacon_bo_reference(drm_bacon_bo *bo);
-void drm_bacon_bo_unreference(drm_bacon_bo *bo);
-int drm_bacon_bo_map(drm_bacon_bo *bo, int write_enable);
-int drm_bacon_bo_unmap(drm_bacon_bo *bo);
-
-int drm_bacon_bo_subdata(drm_bacon_bo *bo, unsigned long offset,
- unsigned long size, const void *data);
-int drm_bacon_bo_get_subdata(drm_bacon_bo *bo, unsigned long offset,
- unsigned long size, void *data);
-void drm_bacon_bo_wait_rendering(drm_bacon_bo *bo);
-
-void drm_bacon_bufmgr_set_debug(drm_bacon_bufmgr *bufmgr, int enable_debug);
-void drm_bacon_bufmgr_destroy(drm_bacon_bufmgr *bufmgr);
-int drm_bacon_bo_exec(drm_bacon_bo *bo, int used,
- struct drm_clip_rect *cliprects, int num_cliprects, int DR4);
-int drm_bacon_bo_mrb_exec(drm_bacon_bo *bo, int used,
- struct drm_clip_rect *cliprects, int num_cliprects, int DR4,
- unsigned int flags);
-int drm_bacon_bufmgr_check_aperture_space(drm_bacon_bo ** bo_array, int count);
-
-int drm_bacon_bo_emit_reloc(drm_bacon_bo *bo, uint32_t offset,
- drm_bacon_bo *target_bo, uint32_t target_offset,
- uint32_t read_domains, uint32_t write_domain);
-int drm_bacon_bo_emit_reloc_fence(drm_bacon_bo *bo, uint32_t offset,
- drm_bacon_bo *target_bo,
- uint32_t target_offset,
- uint32_t read_domains, uint32_t write_domain);
-int drm_bacon_bo_set_tiling(drm_bacon_bo *bo, uint32_t * tiling_mode,
- uint32_t stride);
-int drm_bacon_bo_get_tiling(drm_bacon_bo *bo, uint32_t * tiling_mode,
- uint32_t * swizzle_mode);
-int drm_bacon_bo_flink(drm_bacon_bo *bo, uint32_t * name);
-int drm_bacon_bo_busy(drm_bacon_bo *bo);
-int drm_bacon_bo_madvise(drm_bacon_bo *bo, int madv);
-int drm_bacon_bo_set_softpin_offset(drm_bacon_bo *bo, uint64_t offset);
-
-int drm_bacon_bo_disable_reuse(drm_bacon_bo *bo);
-int drm_bacon_bo_is_reusable(drm_bacon_bo *bo);
-int drm_bacon_bo_references(drm_bacon_bo *bo, drm_bacon_bo *target_bo);
+#define BO_ALLOC_BUSY (1<<0)
+#define BO_ALLOC_ZEROED (1<<1)
+
+/**
+ * Allocate a buffer object.
+ *
+ * Buffer objects are not necessarily initially mapped into CPU virtual
+ * address space or graphics device aperture. They must be mapped
+ * using brw_bo_map() to be used by the CPU.
+ */
+struct brw_bo *brw_bo_alloc(struct brw_bufmgr *bufmgr, const char *name,
+ uint64_t size, uint64_t alignment);
+
+/**
+ * Allocate a tiled buffer object.
+ *
+ * Alignment for tiled objects is set automatically; the 'flags'
+ * argument provides a hint about how the object will be used initially.
+ *
+ * Valid tiling formats are:
+ * I915_TILING_NONE
+ * I915_TILING_X
+ * I915_TILING_Y
+ */
+struct brw_bo *brw_bo_alloc_tiled(struct brw_bufmgr *bufmgr,
+ const char *name,
+ uint64_t size,
+ uint32_t tiling_mode,
+ uint32_t pitch,
+ unsigned flags);
+
+/**
+ * Allocate a tiled buffer object.
+ *
+ * Alignment for tiled objects is set automatically; the 'flags'
+ * argument provides a hint about how the object will be used initially.
+ *
+ * Valid tiling formats are:
+ * I915_TILING_NONE
+ * I915_TILING_X
+ * I915_TILING_Y
+ *
+ * Note the tiling format may be rejected; callers should check the
+ * 'tiling_mode' field on return, as well as the pitch value, which
+ * may have been rounded up to accommodate for tiling restrictions.
+ */
+struct brw_bo *brw_bo_alloc_tiled_2d(struct brw_bufmgr *bufmgr,
+ const char *name,
+ int x, int y, int cpp,
+ uint32_t tiling_mode,
+ uint32_t *pitch,
+ unsigned flags);
+
+/** Takes a reference on a buffer object */
+static inline void
+brw_bo_reference(struct brw_bo *bo)
+{
+ p_atomic_inc(&bo->refcount);
+}
+
+/**
+ * Releases a reference on a buffer object, freeing the data if
+ * no references remain.
+ */
+void brw_bo_unreference(struct brw_bo *bo);
+
+/* Must match MapBufferRange interface (for convenience) */
+#define MAP_READ GL_MAP_READ_BIT
+#define MAP_WRITE GL_MAP_WRITE_BIT
+#define MAP_ASYNC GL_MAP_UNSYNCHRONIZED_BIT
+#define MAP_PERSISTENT GL_MAP_PERSISTENT_BIT
+#define MAP_COHERENT GL_MAP_COHERENT_BIT
+/* internal */
+#define MAP_INTERNAL_MASK (0xff << 24)
+#define MAP_RAW (0x01 << 24)
+
+/**
+ * Maps the buffer into userspace.
+ *
+ * This function will block waiting for any existing execution on the
+ * buffer to complete, first. The resulting mapping is returned.
+ */
+MUST_CHECK void *brw_bo_map(struct brw_context *brw, struct brw_bo *bo, unsigned flags);
+
+/**
+ * Reduces the refcount on the userspace mapping of the buffer
+ * object.
+ */
+static inline int brw_bo_unmap(struct brw_bo *bo) { return 0; }
+
+/** Write data into an object. */
+int brw_bo_subdata(struct brw_bo *bo, uint64_t offset,
+ uint64_t size, const void *data);
+/**
+ * Waits for rendering to an object by the GPU to have completed.
+ *
+ * This is not required for any access to the BO by bo_map,
+ * bo_subdata, etc. It is merely a way for the driver to implement
+ * glFinish.
+ */
+void brw_bo_wait_rendering(struct brw_bo *bo);
+
+/**
+ * Tears down the buffer manager instance.
+ */
+void brw_bufmgr_destroy(struct brw_bufmgr *bufmgr);
+
+/**
+ * Get the current tiling (and resulting swizzling) mode for the bo.
+ *
+ * \param buf Buffer to get tiling mode for
+ * \param tiling_mode returned tiling mode
+ * \param swizzle_mode returned swizzling mode
+ */
+int brw_bo_get_tiling(struct brw_bo *bo, uint32_t *tiling_mode,
+ uint32_t *swizzle_mode);
+
+/**
+ * Create a visible name for a buffer which can be used by other apps
+ *
+ * \param buf Buffer to create a name for
+ * \param name Returned name
+ */
+int brw_bo_flink(struct brw_bo *bo, uint32_t *name);
+
+/**
+ * Returns 1 if mapping the buffer for write could cause the process
+ * to block, due to the object being active in the GPU.
+ */
+int brw_bo_busy(struct brw_bo *bo);
+
+/**
+ * Specify the volatility of the buffer.
+ * \param bo Buffer to create a name for
+ * \param madv The purgeable status
+ *
+ * Use I915_MADV_DONTNEED to mark the buffer as purgeable, and it will be
+ * reclaimed under memory pressure. If you subsequently require the buffer,
+ * then you must pass I915_MADV_WILLNEED to mark the buffer as required.
+ *
+ * Returns 1 if the buffer was retained, or 0 if it was discarded whilst
+ * marked as I915_MADV_DONTNEED.
+ */
+int brw_bo_madvise(struct brw_bo *bo, int madv);