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1/*2 * Copyright 2020 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * OTHER DEALINGS IN THE SOFTWARE.21 */22#include "nouveau_bo.h"23#include "nouveau_dma.h"24#include "nouveau_mem.h"25 26#include <nvif/push906f.h>27 28/*XXX: Fixup class to be compatible with NVIDIA's, which will allow sharing29 * code with KeplerDmaCopyA.30 */31 32int33nvc0_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo,34 struct ttm_resource *old_reg, struct ttm_resource *new_reg)35{36 struct nouveau_mem *mem = nouveau_mem(old_reg);37 struct nvif_push *push = &chan->chan.push;38 u64 src_offset = mem->vma[0].addr;39 u64 dst_offset = mem->vma[1].addr;40 u32 page_count = PFN_UP(new_reg->size);41 int ret;42 43 page_count = PFN_UP(new_reg->size);44 while (page_count) {45 int line_count = (page_count > 8191) ? 8191 : page_count;46 47 ret = PUSH_WAIT(push, 10);48 if (ret)49 return ret;50 51 PUSH_NVSQ(push, NV90B5, 0x030c, upper_32_bits(src_offset),52 0x0310, lower_32_bits(src_offset),53 0x0314, upper_32_bits(dst_offset),54 0x0318, lower_32_bits(dst_offset),55 0x031c, PAGE_SIZE,56 0x0320, PAGE_SIZE,57 0x0324, PAGE_SIZE,58 0x0328, line_count);59 PUSH_NVIM(push, NV90B5, 0x0300, 0x0110);60 61 page_count -= line_count;62 src_offset += (PAGE_SIZE * line_count);63 dst_offset += (PAGE_SIZE * line_count);64 }65 66 return 0;67}68