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/push906f.h>
34 
35 #include <nvhw/class/cl9039.h>
36 
37 int
38 nvc0_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
39 		  struct ttm_resource *old_reg, struct ttm_resource *new_reg)
40 {
41 	struct nvif_push *push = chan->chan.push;
42 	struct nouveau_mem *mem = nouveau_mem(old_reg);
43 	u64 src_offset = mem->vma[0].addr;
44 	u64 dst_offset = mem->vma[1].addr;
45 	u32 page_count = new_reg->num_pages;
46 	int ret;
47 
48 	page_count = new_reg->num_pages;
49 	while (page_count) {
50 		int line_count = (page_count > 2047) ? 2047 : page_count;
51 
52 		ret = PUSH_WAIT(push, 12);
53 		if (ret)
54 			return ret;
55 
56 		PUSH_MTHD(push, NV9039, OFFSET_OUT_UPPER,
57 			  NVVAL(NV9039, OFFSET_OUT_UPPER, VALUE, upper_32_bits(dst_offset)),
58 
59 					OFFSET_OUT, lower_32_bits(dst_offset));
60 
61 		PUSH_MTHD(push, NV9039, OFFSET_IN_UPPER,
62 			  NVVAL(NV9039, OFFSET_IN_UPPER, VALUE, upper_32_bits(src_offset)),
63 
64 					OFFSET_IN, lower_32_bits(src_offset),
65 					PITCH_IN, PAGE_SIZE,
66 					PITCH_OUT, PAGE_SIZE,
67 					LINE_LENGTH_IN, PAGE_SIZE,
68 					LINE_COUNT, line_count);
69 
70 		PUSH_MTHD(push, NV9039, LAUNCH_DMA,
71 			  NVDEF(NV9039, LAUNCH_DMA, SRC_INLINE, FALSE) |
72 			  NVDEF(NV9039, LAUNCH_DMA, SRC_MEMORY_LAYOUT, PITCH) |
73 			  NVDEF(NV9039, LAUNCH_DMA, DST_MEMORY_LAYOUT, PITCH) |
74 			  NVDEF(NV9039, LAUNCH_DMA, COMPLETION_TYPE, FLUSH_DISABLE) |
75 			  NVDEF(NV9039, LAUNCH_DMA, INTERRUPT_TYPE, NONE) |
76 			  NVDEF(NV9039, LAUNCH_DMA, SEMAPHORE_STRUCT_SIZE, ONE_WORD));
77 
78 		page_count -= line_count;
79 		src_offset += (PAGE_SIZE * line_count);
80 		dst_offset += (PAGE_SIZE * line_count);
81 	}
82 
83 	return 0;
84 }
85 
86 int
87 nvc0_bo_move_init(struct nouveau_channel *chan, u32 handle)
88 {
89 	struct nvif_push *push = chan->chan.push;
90 	int ret;
91 
92 	ret = PUSH_WAIT(push, 2);
93 	if (ret)
94 		return ret;
95 
96 	PUSH_MTHD(push, NV9039, SET_OBJECT, handle);
97 	return 0;
98 }
99