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Diffstat (limited to 'linux-core/drm_ttm.h')
| -rw-r--r-- | linux-core/drm_ttm.h | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/linux-core/drm_ttm.h b/linux-core/drm_ttm.h deleted file mode 100644 index 796f2317..00000000 --- a/linux-core/drm_ttm.h +++ /dev/null @@ -1,146 +0,0 @@ -/************************************************************************** - * - * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, - * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR - * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE - * USE OR OTHER DEALINGS IN THE SOFTWARE. - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * - **************************************************************************/ -/* - * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com> - */ - -#ifndef _DRM_TTM_H -#define _DRM_TTM_H -#define DRM_HAS_TTM - -/* - * The backend GART interface. (In our case AGP). Any similar type of device (PCIE?) - * needs only to implement these functions to be usable with the "TTM" interface. - * The AGP backend implementation lives in drm_agpsupport.c - * basically maps these calls to available functions in agpgart. Each drm device driver gets an - * additional function pointer that creates these types, - * so that the device can choose the correct aperture. - * (Multiple AGP apertures, etc.) - * Most device drivers will let this point to the standard AGP implementation. - */ - -#define DRM_BE_FLAG_NEEDS_FREE 0x00000001 -#define DRM_BE_FLAG_BOUND_CACHED 0x00000002 -#define DRM_BE_FLAG_CBA 0x00000004 - -typedef struct drm_ttm_backend { - unsigned long aperture_base; - void *private; - uint32_t flags; - uint32_t drm_map_type; - int (*needs_ub_cache_adjust) (struct drm_ttm_backend * backend); - int (*populate) (struct drm_ttm_backend * backend, - unsigned long num_pages, struct page ** pages); - void (*clear) (struct drm_ttm_backend * backend); - int (*bind) (struct drm_ttm_backend * backend, - unsigned long offset, int cached); - int (*unbind) (struct drm_ttm_backend * backend); - void (*destroy) (struct drm_ttm_backend * backend); -} drm_ttm_backend_t; - -typedef struct drm_ttm { - struct page **pages; - uint32_t page_flags; - unsigned long num_pages; - unsigned long aper_offset; - atomic_t vma_count; - struct drm_device *dev; - int destroy; - uint32_t mapping_offset; - drm_ttm_backend_t *be; - enum { - ttm_bound, - ttm_evicted, - ttm_unbound, - ttm_unpopulated, - } state; -#ifdef DRM_ODD_MM_COMPAT - struct list_head vma_list; - struct list_head p_mm_list; -#endif - -} drm_ttm_t; - -typedef struct drm_ttm_object { - atomic_t usage; - uint32_t flags; - drm_map_list_t map_list; -} drm_ttm_object_t; - -extern int drm_ttm_object_create(struct drm_device *dev, unsigned long size, - uint32_t flags, - drm_ttm_object_t ** ttm_object); -extern void drm_ttm_object_deref_locked(struct drm_device *dev, - drm_ttm_object_t * to); -extern void drm_ttm_object_deref_unlocked(struct drm_device *dev, - drm_ttm_object_t * to); -extern drm_ttm_object_t *drm_lookup_ttm_object(drm_file_t * priv, - uint32_t handle, - int check_owner); -extern int drm_bind_ttm(drm_ttm_t * ttm, int cached, unsigned long aper_offset); - -extern int drm_unbind_ttm(drm_ttm_t * ttm); - -/* - * Evict a ttm region. Keeps Aperture caching policy. - */ - -extern int drm_evict_ttm(drm_ttm_t * ttm); -extern void drm_fixup_ttm_caching(drm_ttm_t * ttm); - -/* - * Destroy a ttm. The user normally calls drmRmMap or a similar IOCTL to do this, - * which calls this function iff there are no vmas referencing it anymore. Otherwise it is called - * when the last vma exits. - */ - -extern int drm_destroy_ttm(drm_ttm_t * ttm); -extern int drm_ttm_ioctl(DRM_IOCTL_ARGS); - -static __inline__ drm_ttm_t *drm_ttm_from_object(drm_ttm_object_t * to) -{ - return (drm_ttm_t *) to->map_list.map->offset; -} - -#define DRM_MASK_VAL(dest, mask, val) \ - (dest) = ((dest) & ~(mask)) | ((val) & (mask)); - -#define DRM_TTM_MASK_FLAGS ((1 << PAGE_SHIFT) - 1) -#define DRM_TTM_MASK_PFN (0xFFFFFFFFU - DRM_TTM_MASK_FLAGS) - -/* - * Page flags. - */ - -#define DRM_TTM_PAGE_UNCACHED 0x01 -#define DRM_TTM_PAGE_USED 0x02 -#define DRM_TTM_PAGE_BOUND 0x04 -#define DRM_TTM_PAGE_PRESENT 0x08 -#define DRM_TTM_PAGE_VMALLOC 0x10 - -#endif |