1 /**************************************************************************
2 * Copyright (c) 2007-2008, Intel Corporation.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
18 **************************************************************************/
25 /*#include "img_types.h"*/
28 struct drm_device
*dev
;
31 uint32_t mmu_gatt_start
;
33 uint32_t gtt_phys_start
;
40 unsigned long stolen_size
;
41 unsigned long vram_stolen_size
;
43 struct rw_semaphore sem
;
48 struct drm_open_hash hash
;
53 struct psb_gtt_hash_entry
{
54 struct drm_open_hash ht
;
56 struct drm_hash_item item
;
59 struct psb_gtt_mem_mapping
{
60 struct drm_mm_node
*node
;
61 struct drm_hash_item item
;
64 /*Exported functions*/
65 extern int psb_gtt_init(struct psb_gtt
*pg
, int resume
);
66 extern int psb_gtt_insert_pages(struct psb_gtt
*pg
, struct page
**pages
,
67 unsigned offset_pages
, unsigned num_pages
,
68 unsigned desired_tile_stride
,
69 unsigned hw_tile_stride
, int type
);
70 extern int psb_gtt_remove_pages(struct psb_gtt
*pg
, unsigned offset_pages
,
72 unsigned desired_tile_stride
,
73 unsigned hw_tile_stride
,
76 extern struct psb_gtt
*psb_gtt_alloc(struct drm_device
*dev
);
77 extern void psb_gtt_takedown(struct psb_gtt
*pg
, int free
);
78 extern int psb_gtt_map_meminfo(struct drm_device
*dev
,
79 void * hKernelMemInfo
,
81 extern int psb_gtt_unmap_meminfo(struct drm_device
*dev
,
82 void * hKernelMemInfo
);
83 extern int psb_gtt_mm_init(struct psb_gtt
*pg
);
84 extern void psb_gtt_mm_takedown(void);
86 /* Each gtt_range describes an allocation in the GTT area */
88 struct resource resource
;
94 /* Most GTT handles we allow allocation of - for now five is fine: we need
96 - Maybe an upload area
97 - One cursor (eventually)
98 - One fence page (possibly)
103 extern int psb_gtt_alloc_handle(struct drm_device
*dev
, struct gtt_range
*gt
);
104 extern int psb_gtt_release_handle(struct drm_device
*dev
, struct gtt_range
*gt
);
105 extern struct gtt_range
*psb_gtt_lookup_handle(struct drm_device
*dev
,
107 extern struct gtt_range
*psb_gtt_alloc_range(struct drm_device
*dev
, int len
,
109 extern void psb_gtt_kref_put(struct gtt_range
*gt
);
110 extern void psb_gtt_free_range(struct drm_device
*dev
, struct gtt_range
*gt
);