68 lines
2.3 KiB
C
68 lines
2.3 KiB
C
/*
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* Copyright 2020 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "nouveau_bo.h"
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#include "nouveau_dma.h"
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#include "nouveau_mem.h"
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#include <nvif/push906f.h>
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/*XXX: Fixup class to be compatible with NVIDIA's, which will allow sharing
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* code with KeplerDmaCopyA.
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*/
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int
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nvc0_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
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struct ttm_resource *old_reg, struct ttm_resource *new_reg)
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{
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struct nouveau_mem *mem = nouveau_mem(old_reg);
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struct nvif_push *push = chan->chan.push;
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u64 src_offset = mem->vma[0].addr;
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u64 dst_offset = mem->vma[1].addr;
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u32 page_count = new_reg->num_pages;
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int ret;
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page_count = new_reg->num_pages;
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while (page_count) {
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int line_count = (page_count > 8191) ? 8191 : page_count;
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ret = PUSH_WAIT(push, 10);
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if (ret)
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return ret;
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PUSH_NVSQ(push, NV90B5, 0x030c, upper_32_bits(src_offset),
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0x0310, lower_32_bits(src_offset),
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0x0314, upper_32_bits(dst_offset),
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0x0318, lower_32_bits(dst_offset),
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0x031c, PAGE_SIZE,
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0x0320, PAGE_SIZE,
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0x0324, PAGE_SIZE,
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0x0328, line_count);
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PUSH_NVIM(push, NV90B5, 0x0300, 0x0110);
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page_count -= line_count;
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src_offset += (PAGE_SIZE * line_count);
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dst_offset += (PAGE_SIZE * line_count);
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}
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return 0;
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}
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