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