| /* |
| * Copyright 2008 Advanced Micro Devices, Inc. |
| * Copyright 2008 Red Hat Inc. |
| * Copyright 2009 Jerome Glisse. |
| * |
| * 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, sublicense, |
| * 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 above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * 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 NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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. |
| * |
| * Authors: Dave Airlie |
| * Alex Deucher |
| * Jerome Glisse |
| */ |
| #ifndef __RADEON_OBJECT_H__ |
| #define __RADEON_OBJECT_H__ |
| |
| #include <drm/radeon_drm.h> |
| #include "radeon.h" |
| |
| /** |
| * radeon_mem_type_to_domain - return domain corresponding to mem_type |
| * @mem_type: ttm memory type |
| * |
| * Returns corresponding domain of the ttm mem_type |
| */ |
| static inline unsigned radeon_mem_type_to_domain(u32 mem_type) |
| { |
| switch (mem_type) { |
| case TTM_PL_VRAM: |
| return RADEON_GEM_DOMAIN_VRAM; |
| case TTM_PL_TT: |
| return RADEON_GEM_DOMAIN_GTT; |
| case TTM_PL_SYSTEM: |
| return RADEON_GEM_DOMAIN_CPU; |
| default: |
| break; |
| } |
| return 0; |
| } |
| |
| /** |
| * radeon_bo_reserve - reserve bo |
| * @bo: bo structure |
| * @no_wait: don't sleep while trying to reserve (return -EBUSY) |
| * |
| * Returns: |
| * -EBUSY: buffer is busy and @no_wait is true |
| * -ERESTART: A wait for the buffer to become unreserved was interrupted by |
| * a signal. Release all buffer reservations and return to user-space. |
| */ |
| static inline int radeon_bo_reserve(struct radeon_bo *bo, bool no_wait) |
| { |
| int r; |
| |
| retry: |
| r = ttm_bo_reserve(&bo->tbo, true, no_wait, false, 0); |
| if (unlikely(r != 0)) { |
| if (r == -ERESTART) |
| goto retry; |
| dev_err(bo->rdev->dev, "%p reserve failed\n", bo); |
| return r; |
| } |
| return 0; |
| } |
| |
| static inline void radeon_bo_unreserve(struct radeon_bo *bo) |
| { |
| ttm_bo_unreserve(&bo->tbo); |
| } |
| |
| /** |
| * radeon_bo_gpu_offset - return GPU offset of bo |
| * @bo: radeon object for which we query the offset |
| * |
| * Returns current GPU offset of the object. |
| * |
| * Note: object should either be pinned or reserved when calling this |
| * function, it might be usefull to add check for this for debugging. |
| */ |
| static inline u64 radeon_bo_gpu_offset(struct radeon_bo *bo) |
| { |
| return bo->tbo.offset; |
| } |
| |
| static inline unsigned long radeon_bo_size(struct radeon_bo *bo) |
| { |
| return bo->tbo.num_pages << PAGE_SHIFT; |
| } |
| |
| static inline bool radeon_bo_is_reserved(struct radeon_bo *bo) |
| { |
| return !!atomic_read(&bo->tbo.reserved); |
| } |
| |
| /** |
| * radeon_bo_mmap_offset - return mmap offset of bo |
| * @bo: radeon object for which we query the offset |
| * |
| * Returns mmap offset of the object. |
| * |
| * Note: addr_space_offset is constant after ttm bo init thus isn't protected |
| * by any lock. |
| */ |
| static inline u64 radeon_bo_mmap_offset(struct radeon_bo *bo) |
| { |
| return bo->tbo.addr_space_offset; |
| } |
| |
| static inline int radeon_bo_wait(struct radeon_bo *bo, u32 *mem_type, |
| bool no_wait) |
| { |
| int r; |
| |
| retry: |
| r = ttm_bo_reserve(&bo->tbo, true, no_wait, false, 0); |
| if (unlikely(r != 0)) { |
| if (r == -ERESTART) |
| goto retry; |
| dev_err(bo->rdev->dev, "%p reserve failed for wait\n", bo); |
| return r; |
| } |
| spin_lock(&bo->tbo.lock); |
| if (mem_type) |
| *mem_type = bo->tbo.mem.mem_type; |
| if (bo->tbo.sync_obj) |
| r = ttm_bo_wait(&bo->tbo, true, true, no_wait); |
| spin_unlock(&bo->tbo.lock); |
| ttm_bo_unreserve(&bo->tbo); |
| if (unlikely(r == -ERESTART)) |
| goto retry; |
| return r; |
| } |
| |
| extern int radeon_bo_create(struct radeon_device *rdev, |
| struct drm_gem_object *gobj, unsigned long size, |
| bool kernel, u32 domain, |
| struct radeon_bo **bo_ptr); |
| extern int radeon_bo_kmap(struct radeon_bo *bo, void **ptr); |
| extern void radeon_bo_kunmap(struct radeon_bo *bo); |
| extern void radeon_bo_unref(struct radeon_bo **bo); |
| extern int radeon_bo_pin(struct radeon_bo *bo, u32 domain, u64 *gpu_addr); |
| extern int radeon_bo_unpin(struct radeon_bo *bo); |
| extern int radeon_bo_evict_vram(struct radeon_device *rdev); |
| extern void radeon_bo_force_delete(struct radeon_device *rdev); |
| extern int radeon_bo_init(struct radeon_device *rdev); |
| extern void radeon_bo_fini(struct radeon_device *rdev); |
| extern void radeon_bo_list_add_object(struct radeon_bo_list *lobj, |
| struct list_head *head); |
| extern int radeon_bo_list_reserve(struct list_head *head); |
| extern void radeon_bo_list_unreserve(struct list_head *head); |
| extern int radeon_bo_list_validate(struct list_head *head, void *fence); |
| extern void radeon_bo_list_unvalidate(struct list_head *head, void *fence); |
| extern int radeon_bo_fbdev_mmap(struct radeon_bo *bo, |
| struct vm_area_struct *vma); |
| extern int radeon_bo_set_tiling_flags(struct radeon_bo *bo, |
| u32 tiling_flags, u32 pitch); |
| extern void radeon_bo_get_tiling_flags(struct radeon_bo *bo, |
| u32 *tiling_flags, u32 *pitch); |
| extern int radeon_bo_check_tiling(struct radeon_bo *bo, bool has_moved, |
| bool force_drop); |
| extern void radeon_bo_move_notify(struct ttm_buffer_object *bo, |
| struct ttm_mem_reg *mem); |
| extern void radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo); |
| extern int radeon_bo_get_surface_reg(struct radeon_bo *bo); |
| #endif |