1 /* 2 * Copyright 2020 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 #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 sharing 29 * code with KeplerDmaCopyA. 30 */ 31 32 int 33 nvc0_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo, 34 struct ttm_mem_reg *old_reg, struct ttm_mem_reg *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 = new_reg->num_pages; 41 int ret; 42 43 page_count = new_reg->num_pages; 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