projects / deliverable / linux.git / blame
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|---|---|---|
| 8c8f1c95 AC |
1 | /************************************************************************** |
| 2 | * Copyright (c) 2007-2008, Intel Corporation. | |
| 3 | * All Rights Reserved. | |
| 4 | * | |
| 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. | |
| 8 | * | |
| 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 | |
| 12 | * more details. | |
| 13 | * | |
| 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. | |
| 17 | * | |
| 18 | **************************************************************************/ | |
| 19 | ||
| 20 | #ifndef _PSB_GTT_H_ | |
| 21 | #define _PSB_GTT_H_ | |
| 22 | ||
| 23 | #include <drm/drmP.h> | |
| 24 | ||
| 25 | /* This wants cleaning up with respect to the psb_dev and un-needed stuff */ | |
| 26 | struct psb_gtt { | |
| 27 | uint32_t gatt_start; | |
| 28 | uint32_t mmu_gatt_start; | |
| 29 | uint32_t gtt_start; | |
| 30 | uint32_t gtt_phys_start; | |
| 31 | unsigned gtt_pages; | |
| 32 | unsigned gatt_pages; | |
| 33 | unsigned long stolen_size; | |
| 34 | unsigned long vram_stolen_size; | |
| 35 | struct rw_semaphore sem; | |
| 36 | }; | |
| 37 | ||
| 38 | /* Exported functions */ | |
| 39 | extern int psb_gtt_init(struct drm_device *dev, int resume); | |
| 40 | extern void psb_gtt_takedown(struct drm_device *dev); | |
| 41 | ||
| 42 | /* Each gtt_range describes an allocation in the GTT area */ | |
| 43 | struct gtt_range { | |
| 44 | struct resource resource; /* Resource for our allocation */ | |
| 45 | u32 offset; /* GTT offset of our object */ | |
| 46 | struct drm_gem_object gem; /* GEM high level stuff */ | |
| 47 | int in_gart; /* Currently in the GART (ref ct) */ | |
| 48 | bool stolen; /* Backed from stolen RAM */ | |
| 49 | bool mmapping; /* Is mmappable */ | |
| 50 | struct page **pages; /* Backing pages if present */ | |
| 51 | int npage; /* Number of backing pages */ | |
| a6ba582d | 52 | int roll; /* Roll applied to the GTT entries */ |
| 8c8f1c95 AC |
53 | }; |
| 54 | ||
| 55 | extern struct gtt_range *psb_gtt_alloc_range(struct drm_device *dev, int len, | |
| 56 | const char *name, int backed); | |
| 57 | extern void psb_gtt_kref_put(struct gtt_range *gt); | |
| 58 | extern void psb_gtt_free_range(struct drm_device *dev, struct gtt_range *gt); | |
| 59 | extern int psb_gtt_pin(struct gtt_range *gt); | |
| 60 | extern void psb_gtt_unpin(struct gtt_range *gt); | |
| a6ba582d AC |
61 | extern void psb_gtt_roll(struct drm_device *dev, |
| 62 | struct gtt_range *gt, int roll); | |
| 070839ea | 63 | extern int psb_gtt_restore(struct drm_device *dev); |
| 8c8f1c95 | 64 | #endif |