diff options
Diffstat (limited to 'linux-core/drm_bo.c')
| -rw-r--r-- | linux-core/drm_bo.c | 58 |
1 files changed, 31 insertions, 27 deletions
diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c index 814175cd..48cb5ef4 100644 --- a/linux-core/drm_bo.c +++ b/linux-core/drm_bo.c @@ -692,8 +692,6 @@ out: return ret; } - - static int drm_bo_mem_force_space(drm_device_t *dev, drm_bo_mem_reg_t *mem, uint32_t mem_type, @@ -744,7 +742,6 @@ static int drm_bo_mem_force_space(drm_device_t *dev, return 0; } - static int drm_bo_mt_compatible(drm_mem_type_manager_t *man, uint32_t mem_type, uint32_t mask, @@ -777,7 +774,6 @@ static int drm_bo_mt_compatible(drm_mem_type_manager_t *man, return 1; } - int drm_bo_mem_space(drm_buffer_object_t *bo, drm_bo_mem_reg_t *mem, int no_wait) @@ -1817,10 +1813,8 @@ static int drm_bo_leave_list(drm_buffer_object_t *bo, if (bo->pinned_node == bo->mem.mm_node) bo->pinned_node = NULL; if (bo->pinned_node != NULL) { - mutex_lock(&dev->struct_mutex); drm_mm_put_block(bo->pinned_node); bo->pinned_node = NULL; - mutex_unlock(&dev->struct_mutex); } mutex_unlock(&dev->struct_mutex); } @@ -1831,8 +1825,9 @@ static int drm_bo_leave_list(drm_buffer_object_t *bo, bo->mem.flags &= ~DRM_BO_FLAG_NO_EVICT; bo->mem.mask &= ~DRM_BO_FLAG_NO_EVICT; } - - ret = drm_bo_evict(bo, mem_type, 0); + + if (bo->mem.mem_type == mem_type) + ret = drm_bo_evict(bo, mem_type, 0); if (ret){ if (allow_errors){ @@ -1862,29 +1857,40 @@ static int drm_bo_force_list_clean(drm_device_t * dev, int allow_errors, int pinned_list) { - struct list_head *list; + struct list_head *list, *next; drm_buffer_object_t *entry; int ret; + int do_retry; - list = head->next; - while(list != head) { + /* + * We need to + * restart if a node disappears from under us. + * Nodes cannot be added since the hardware lock is needed + * For this operation. + */ + +retry: + list_for_each_safe(list, next, head) { if (pinned_list) entry = list_entry(list, drm_buffer_object_t, pinned_lru); else entry = list_entry(list, drm_buffer_object_t, lru); - + atomic_inc(&entry->usage); ret = drm_bo_leave_list(entry, mem_type, free_pinned, allow_errors); - + + do_retry = list->next != next; + drm_bo_usage_deref_locked(entry); + if (ret) return ret; - - list = head->next; + + if (do_retry) + goto retry; } - return 0; - + return 0; } int drm_bo_clean_mm(drm_device_t * dev, unsigned mem_type) @@ -1909,12 +1915,7 @@ int drm_bo_clean_mm(drm_device_t * dev, unsigned mem_type) ret = 0; if (mem_type > 0) { - /* - * Throw out unfenced buffers. - */ - drm_bo_force_list_clean(dev, &bm->unfenced, mem_type, 1, 0, 0); - drm_bo_force_list_clean(dev, &man->lru, mem_type, 1, 0, 0); drm_bo_force_list_clean(dev, &man->pinned, mem_type, 1, 0, 1); @@ -1928,6 +1929,12 @@ int drm_bo_clean_mm(drm_device_t * dev, unsigned mem_type) return ret; } +/** + *Evict all buffers of a particular mem_type, but leave memory manager + *regions for NO_MOVE buffers intact. New buffers cannot be added at this + *point since we have the hardware lock. + */ + static int drm_bo_lock_mm(drm_device_t * dev, unsigned mem_type) { int ret; @@ -1942,11 +1949,8 @@ static int drm_bo_lock_mm(drm_device_t * dev, unsigned mem_type) ret = drm_bo_force_list_clean(dev, &bm->unfenced, mem_type, 0, 1, 0); if (ret) return ret; - ret = drm_bo_force_list_clean(dev, &man->lru, mem_type, 0, 1, 1); - if (ret) - return ret; - ret = - drm_bo_force_list_clean(dev, &man->pinned, mem_type, 0, 1, 1); + ret = drm_bo_force_list_clean(dev, &man->lru, mem_type, 0, 1, 0); + return ret; } |