projects / mirror_ubuntu-jammy-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| a61127c2 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 8c8f1c95 AC |
2 | /************************************************************************** |
| 3 | * Copyright (c) 2007-2008, Intel Corporation. | |
| 4 | * All Rights Reserved. | |
| 5 | * | |
| 8c8f1c95 AC |
6 | **************************************************************************/ |
| 7 | ||
| 8 | #ifndef _PSB_GTT_H_ | |
| 9 | #define _PSB_GTT_H_ | |
| 10 | ||
| 11 | #include <drm/drmP.h> | |
| d9fc9413 | 12 | #include <drm/drm_gem.h> |
| 8c8f1c95 AC |
13 | |
| 14 | /* This wants cleaning up with respect to the psb_dev and un-needed stuff */ | |
| 15 | struct psb_gtt { | |
| 16 | uint32_t gatt_start; | |
| 17 | uint32_t mmu_gatt_start; | |
| 18 | uint32_t gtt_start; | |
| 19 | uint32_t gtt_phys_start; | |
| 20 | unsigned gtt_pages; | |
| 21 | unsigned gatt_pages; | |
| 22 | unsigned long stolen_size; | |
| 23 | unsigned long vram_stolen_size; | |
| 24 | struct rw_semaphore sem; | |
| 25 | }; | |
| 26 | ||
| 27 | /* Exported functions */ | |
| 28 | extern int psb_gtt_init(struct drm_device *dev, int resume); | |
| 29 | extern void psb_gtt_takedown(struct drm_device *dev); | |
| 30 | ||
| 31 | /* Each gtt_range describes an allocation in the GTT area */ | |
| 32 | struct gtt_range { | |
| 33 | struct resource resource; /* Resource for our allocation */ | |
| 34 | u32 offset; /* GTT offset of our object */ | |
| 35 | struct drm_gem_object gem; /* GEM high level stuff */ | |
| 36 | int in_gart; /* Currently in the GART (ref ct) */ | |
| 37 | bool stolen; /* Backed from stolen RAM */ | |
| 38 | bool mmapping; /* Is mmappable */ | |
| 39 | struct page **pages; /* Backing pages if present */ | |
| 40 | int npage; /* Number of backing pages */ | |
| a6ba582d | 41 | int roll; /* Roll applied to the GTT entries */ |
| 8c8f1c95 AC |
42 | }; |
| 43 | ||
| bc61c975 DS |
44 | #define to_gtt_range(x) container_of(x, struct gtt_range, gem) |
| 45 | ||
| 8c8f1c95 | 46 | extern struct gtt_range *psb_gtt_alloc_range(struct drm_device *dev, int len, |
| c269c685 PJ |
47 | const char *name, int backed, |
| 48 | u32 align); | |
| 8c8f1c95 AC |
49 | extern void psb_gtt_kref_put(struct gtt_range *gt); |
| 50 | extern void psb_gtt_free_range(struct drm_device *dev, struct gtt_range *gt); | |
| 51 | extern int psb_gtt_pin(struct gtt_range *gt); | |
| 52 | extern void psb_gtt_unpin(struct gtt_range *gt); | |
| a6ba582d AC |
53 | extern void psb_gtt_roll(struct drm_device *dev, |
| 54 | struct gtt_range *gt, int roll); | |
| 070839ea | 55 | extern int psb_gtt_restore(struct drm_device *dev); |
| 8c8f1c95 | 56 | #endif |