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qxl_object.h revision 1.1.1.1 
      1 /*
      2  * Copyright 2013 Red Hat Inc.
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a
      5  * copy of this software and associated documentation files (the "Software"),
      6  * to deal in the Software without restriction, including without limitation
      7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8  * and/or sell copies of the Software, and to permit persons to whom the
      9  * Software is furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice shall be included in
     12  * all copies or substantial portions of the Software.
     13  *
     14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     20  * OTHER DEALINGS IN THE SOFTWARE.
     21  *
     22  * Authors: Dave Airlie
     23  *          Alon Levy
     24  */
     25 #ifndef QXL_OBJECT_H
     26 #define QXL_OBJECT_H
     27 
     28 #include "qxl_drv.h"
     29 
     30 static inline int qxl_bo_reserve(struct qxl_bo *bo, bool no_wait)
     31 {
     32 	int r;
     33 
     34 	r = ttm_bo_reserve(&bo->tbo, true, no_wait, false, 0);
     35 	if (unlikely(r != 0)) {
     36 		if (r != -ERESTARTSYS) {
     37 			struct qxl_device *qdev = (struct qxl_device *)bo->gem_base.dev->dev_private;
     38 			dev_err(qdev->dev, "%p reserve failed\n", bo);
     39 		}
     40 		return r;
     41 	}
     42 	return 0;
     43 }
     44 
     45 static inline void qxl_bo_unreserve(struct qxl_bo *bo)
     46 {
     47 	ttm_bo_unreserve(&bo->tbo);
     48 }
     49 
     50 static inline u64 qxl_bo_gpu_offset(struct qxl_bo *bo)
     51 {
     52 	return bo->tbo.offset;
     53 }
     54 
     55 static inline unsigned long qxl_bo_size(struct qxl_bo *bo)
     56 {
     57 	return bo->tbo.num_pages << PAGE_SHIFT;
     58 }
     59 
     60 static inline u64 qxl_bo_mmap_offset(struct qxl_bo *bo)
     61 {
     62 	return drm_vma_node_offset_addr(&bo->tbo.vma_node);
     63 }
     64 
     65 static inline int qxl_bo_wait(struct qxl_bo *bo, u32 *mem_type,
     66 			      bool no_wait)
     67 {
     68 	int r;
     69 
     70 	r = ttm_bo_reserve(&bo->tbo, true, no_wait, false, 0);
     71 	if (unlikely(r != 0)) {
     72 		if (r != -ERESTARTSYS) {
     73 			struct qxl_device *qdev = (struct qxl_device *)bo->gem_base.dev->dev_private;
     74 			dev_err(qdev->dev, "%p reserve failed for wait\n",
     75 				bo);
     76 		}
     77 		return r;
     78 	}
     79 	spin_lock(&bo->tbo.bdev->fence_lock);
     80 	if (mem_type)
     81 		*mem_type = bo->tbo.mem.mem_type;
     82 	if (bo->tbo.sync_obj)
     83 		r = ttm_bo_wait(&bo->tbo, true, true, no_wait);
     84 	spin_unlock(&bo->tbo.bdev->fence_lock);
     85 	ttm_bo_unreserve(&bo->tbo);
     86 	return r;
     87 }
     88 
     89 extern int qxl_bo_create(struct qxl_device *qdev,
     90 			 unsigned long size,
     91 			 bool kernel, bool pinned, u32 domain,
     92 			 struct qxl_surface *surf,
     93 			 struct qxl_bo **bo_ptr);
     94 extern int qxl_bo_kmap(struct qxl_bo *bo, void **ptr);
     95 extern void qxl_bo_kunmap(struct qxl_bo *bo);
     96 void *qxl_bo_kmap_atomic_page(struct qxl_device *qdev, struct qxl_bo *bo, int page_offset);
     97 void qxl_bo_kunmap_atomic_page(struct qxl_device *qdev, struct qxl_bo *bo, void *map);
     98 extern struct qxl_bo *qxl_bo_ref(struct qxl_bo *bo);
     99 extern void qxl_bo_unref(struct qxl_bo **bo);
    100 extern int qxl_bo_pin(struct qxl_bo *bo, u32 domain, u64 *gpu_addr);
    101 extern int qxl_bo_unpin(struct qxl_bo *bo);
    102 extern void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain, bool pinned);
    103 extern bool qxl_ttm_bo_is_qxl_bo(struct ttm_buffer_object *bo);
    104 
    105 #endif
    106