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_drv.h"
32
33 #include <nvif/push006c.h>
34
35 #include <nvhw/class/cl0039.h>
36
37 static inline uint32_t
nouveau_bo_mem_ctxdma(struct ttm_buffer_object * bo,struct nouveau_channel * chan,struct ttm_resource * reg)38 nouveau_bo_mem_ctxdma(struct ttm_buffer_object *bo,
39 struct nouveau_channel *chan, struct ttm_resource *reg)
40 {
41 if (reg->mem_type == TTM_PL_TT)
42 return NvDmaTT;
43 return chan->vram.handle;
44 }
45
46 int
nv04_bo_move_m2mf(struct nouveau_channel * chan,struct ttm_buffer_object * bo,struct ttm_resource * old_reg,struct ttm_resource * new_reg)47 nv04_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
48 struct ttm_resource *old_reg, struct ttm_resource *new_reg)
49 {
50 struct nvif_push *push = chan->chan.push;
51 u32 src_ctxdma = nouveau_bo_mem_ctxdma(bo, chan, old_reg);
52 u32 src_offset = old_reg->start << PAGE_SHIFT;
53 u32 dst_ctxdma = nouveau_bo_mem_ctxdma(bo, chan, new_reg);
54 u32 dst_offset = new_reg->start << PAGE_SHIFT;
55 u32 page_count = new_reg->num_pages;
56 int ret;
57
58 ret = PUSH_WAIT(push, 3);
59 if (ret)
60 return ret;
61
62 PUSH_MTHD(push, NV039, SET_CONTEXT_DMA_BUFFER_IN, src_ctxdma,
63 SET_CONTEXT_DMA_BUFFER_OUT, dst_ctxdma);
64
65 page_count = new_reg->num_pages;
66 while (page_count) {
67 int line_count = (page_count > 2047) ? 2047 : page_count;
68
69 ret = PUSH_WAIT(push, 11);
70 if (ret)
71 return ret;
72
73 PUSH_MTHD(push, NV039, OFFSET_IN, src_offset,
74 OFFSET_OUT, dst_offset,
75 PITCH_IN, PAGE_SIZE,
76 PITCH_OUT, PAGE_SIZE,
77 LINE_LENGTH_IN, PAGE_SIZE,
78 LINE_COUNT, line_count,
79
80 FORMAT,
81 NVVAL(NV039, FORMAT, IN, 1) |
82 NVVAL(NV039, FORMAT, OUT, 1),
83
84 BUFFER_NOTIFY, NV039_BUFFER_NOTIFY_WRITE_ONLY);
85
86 PUSH_MTHD(push, NV039, NO_OPERATION, 0x00000000);
87
88 page_count -= line_count;
89 src_offset += (PAGE_SIZE * line_count);
90 dst_offset += (PAGE_SIZE * line_count);
91 }
92
93 return 0;
94 }
95
96 int
nv04_bo_move_init(struct nouveau_channel * chan,u32 handle)97 nv04_bo_move_init(struct nouveau_channel *chan, u32 handle)
98 {
99 struct nvif_push *push = chan->chan.push;
100 int ret;
101
102 ret = PUSH_WAIT(push, 4);
103 if (ret)
104 return ret;
105
106 PUSH_MTHD(push, NV039, SET_OBJECT, handle);
107 PUSH_MTHD(push, NV039, SET_CONTEXT_DMA_NOTIFIES, chan->drm->ntfy.handle);
108 return 0;
109 }
110