1/*
2 * Copyright 2007 Dave Airlied
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 */
24/*
25 * Authors: Dave Airlied <airlied@linux.ie>
26 * Ben Skeggs <darktama@iinet.net.au>
27 * Jeremy Kolb <jkolb@brandeis.edu>
28 */
29#include "nouveau_bo.h"
30#include "nouveau_dma.h"
31#include "nouveau_mem.h"
32
33#include <nvif/push206e.h>
34
35/*XXX: Fixup class to be compatible with NVIDIA's, which will allow sharing
36 * code with KeplerDmaCopyA.
37 */
38
39int
40nva3_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
41 struct ttm_resource *old_reg, struct ttm_resource *new_reg)
42{
43 struct nouveau_mem *mem = nouveau_mem(reg: old_reg);
44 struct nvif_push *push = chan->chan.push;
45 u64 src_offset = mem->vma[0].addr;
46 u64 dst_offset = mem->vma[1].addr;
47 u32 page_count = PFN_UP(new_reg->size);
48 int ret;
49
50 page_count = PFN_UP(new_reg->size);
51 while (page_count) {
52 int line_count = (page_count > 8191) ? 8191 : page_count;
53
54 ret = PUSH_WAIT(push, 11);
55 if (ret)
56 return ret;
57
58 PUSH_NVSQ(push, NV85B5, 0x030c, upper_32_bits(src_offset),
59 0x0310, lower_32_bits(src_offset),
60 0x0314, upper_32_bits(dst_offset),
61 0x0318, lower_32_bits(dst_offset),
62 0x031c, PAGE_SIZE,
63 0x0320, PAGE_SIZE,
64 0x0324, PAGE_SIZE,
65 0x0328, line_count);
66 PUSH_NVSQ(push, NV85B5, 0x0300, 0x00000110);
67
68 page_count -= line_count;
69 src_offset += (PAGE_SIZE * line_count);
70 dst_offset += (PAGE_SIZE * line_count);
71 }
72
73 return 0;
74}
75

source code of linux/drivers/gpu/drm/nouveau/nouveau_bo85b5.c