diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_object.h')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_object.h | 157 |
1 files changed, 145 insertions, 12 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_object.h b/drivers/gpu/drm/radeon/radeon_object.h index 10e8af6bb45..f6b69c2c0d0 100644 --- a/drivers/gpu/drm/radeon/radeon_object.h +++ b/drivers/gpu/drm/radeon/radeon_object.h @@ -28,19 +28,152 @@ #ifndef __RADEON_OBJECT_H__ #define __RADEON_OBJECT_H__ -#include <ttm/ttm_bo_api.h> -#include <ttm/ttm_bo_driver.h> -#include <ttm/ttm_placement.h> -#include <ttm/ttm_module.h> +#include <drm/radeon_drm.h> +#include "radeon.h" -/* - * TTM. +/** + * 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. */ -struct radeon_mman { - struct ttm_bo_global_ref bo_global_ref; - struct ttm_global_reference mem_global_ref; - bool mem_global_referenced; - struct ttm_bo_device bdev; -}; +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 |