static void
bochs_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl)
{
struct bochs_bo *bochsbo = bochs_bo(bo);
if (!bochs_ttm_bo_is_bochs_bo(bo))
return;
bochs_ttm_placement(bochsbo, TTM_PL_FLAG_SYSTEM);
*pl = bochsbo->placement;
}
int bochs_bo_pin(struct bochs_bo *bo, u32 pl_flag, u64 *gpu_addr)
{
int i, ret;
if (bo->pin_count) {
bo->pin_count++;
if (gpu_addr)
*gpu_addr = bochs_bo_gpu_offset(bo);
return 0;
}
bochs_ttm_placement(bo, pl_flag);
for (i = 0; i < bo->placement.num_placement; i++)
bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT;
ret = ttm_bo_validate(&bo->bo, &bo->placement, false, false);
if (ret)
return ret;
bo->pin_count = 1;
if (gpu_addr)
*gpu_addr = bochs_bo_gpu_offset(bo);
return 0;
}
static int bochs_bo_create(struct drm_device *dev, int size, int align,
uint32_t flags, struct bochs_bo **pbochsbo)
{
struct bochs_device *bochs = dev->dev_private;
struct bochs_bo *bochsbo;
size_t acc_size;
int ret;
bochsbo = kzalloc(sizeof(struct bochs_bo), GFP_KERNEL);
if (!bochsbo)
return -ENOMEM;
ret = drm_gem_object_init(dev, &bochsbo->gem, size);
if (ret) {
kfree(bochsbo);
return ret;
}
bochsbo->bo.bdev = &bochs->ttm.bdev;
bochsbo->bo.bdev->dev_mapping = dev->anon_inode->i_mapping;
bochs_ttm_placement(bochsbo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM);
acc_size = ttm_bo_dma_acc_size(&bochs->ttm.bdev, size,
sizeof(struct bochs_bo));
ret = ttm_bo_init(&bochs->ttm.bdev, &bochsbo->bo, size,
ttm_bo_type_device, &bochsbo->placement,
align >> PAGE_SHIFT, false, NULL, acc_size,
NULL, NULL, bochs_bo_ttm_destroy);
if (ret)
return ret;
*pbochsbo = bochsbo;
return 0;
}