2 * Copyright 2011 Red Hat Inc.
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32 * We store the last allocated bo in "hole", we always try to allocate
33 * after the last allocated bo. Principle is that in a linear GPU ring
34 * progression was is after last is the oldest bo we allocated and thus
35 * the first one that should no longer be in use by the GPU.
37 * If it's not the case we skip over the bo after last to the closest
38 * done bo if such one exist. If none exist and we are not asked to
39 * block we report failure to allocate.
41 * If we are asked to block we wait on all the oldest fence of all
42 * rings. We just wait for any of those fence to complete.
47 int radeon_sa_bo_manager_init(struct radeon_device *rdev,
48 struct radeon_sa_manager *sa_manager,
49 unsigned int size, u32 sa_align, u32 domain,
54 r = radeon_bo_create(rdev, size, RADEON_GPU_PAGE_SIZE, true,
55 domain, flags, NULL, NULL, &sa_manager->bo);
57 dev_err(rdev->dev, "(%d) failed to allocate bo for manager\n", r);
61 sa_manager->domain = domain;
63 drm_suballoc_manager_init(&sa_manager->base, size, sa_align);
68 void radeon_sa_bo_manager_fini(struct radeon_device *rdev,
69 struct radeon_sa_manager *sa_manager)
71 drm_suballoc_manager_fini(&sa_manager->base);
72 radeon_bo_unref(&sa_manager->bo);
75 int radeon_sa_bo_manager_start(struct radeon_device *rdev,
76 struct radeon_sa_manager *sa_manager)
80 if (sa_manager->bo == NULL) {
81 dev_err(rdev->dev, "no bo for sa manager\n");
86 r = radeon_bo_reserve(sa_manager->bo, false);
88 dev_err(rdev->dev, "(%d) failed to reserve manager bo\n", r);
91 r = radeon_bo_pin(sa_manager->bo, sa_manager->domain, &sa_manager->gpu_addr);
93 radeon_bo_unreserve(sa_manager->bo);
94 dev_err(rdev->dev, "(%d) failed to pin manager bo\n", r);
97 r = radeon_bo_kmap(sa_manager->bo, &sa_manager->cpu_ptr);
98 radeon_bo_unreserve(sa_manager->bo);
102 int radeon_sa_bo_manager_suspend(struct radeon_device *rdev,
103 struct radeon_sa_manager *sa_manager)
107 if (sa_manager->bo == NULL) {
108 dev_err(rdev->dev, "no bo for sa manager\n");
112 r = radeon_bo_reserve(sa_manager->bo, false);
114 radeon_bo_kunmap(sa_manager->bo);
115 radeon_bo_unpin(sa_manager->bo);
116 radeon_bo_unreserve(sa_manager->bo);
121 int radeon_sa_bo_new(struct radeon_sa_manager *sa_manager,
122 struct drm_suballoc **sa_bo,
123 unsigned int size, unsigned int align)
125 struct drm_suballoc *sa = drm_suballoc_new(&sa_manager->base, size,
126 GFP_KERNEL, false, align);
137 void radeon_sa_bo_free(struct drm_suballoc **sa_bo,
138 struct radeon_fence *fence)
140 if (sa_bo == NULL || *sa_bo == NULL) {
145 drm_suballoc_free(*sa_bo, &fence->base);
147 drm_suballoc_free(*sa_bo, NULL);
152 #if defined(CONFIG_DEBUG_FS)
153 void radeon_sa_bo_dump_debug_info(struct radeon_sa_manager *sa_manager,
156 struct drm_printer p = drm_seq_file_printer(m);
158 drm_suballoc_dump_debug_info(&sa_manager->base, &p, sa_manager->gpu_addr);