1 /*
2  * Copyright 2010 Red Hat Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: Ben Skeggs
23  */
24 #include "mem.h"
25 #include "vmm.h"
26 
27 #include <nvif/class.h>
28 
29 const u8 *
30 nv50_mmu_kind(struct nvkm_mmu *base, int *count, u8 *invalid)
31 {
32 	/* 0x01: no bank swizzle
33 	 * 0x02: bank swizzled
34 	 * 0x7f: invalid
35 	 *
36 	 * 0x01/0x02 are values understood by the VRAM allocator,
37 	 * and are required to avoid mixing the two types within
38 	 * a certain range.
39 	 */
40 	static const u8
41 	kind[128] = {
42 		0x01, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, /* 0x00 */
43 		0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f,
44 		0x01, 0x01, 0x01, 0x01, 0x7f, 0x7f, 0x7f, 0x7f, /* 0x10 */
45 		0x02, 0x02, 0x02, 0x02, 0x7f, 0x7f, 0x7f, 0x7f,
46 		0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x7f, /* 0x20 */
47 		0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x7f,
48 		0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, /* 0x30 */
49 		0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f,
50 		0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, /* 0x40 */
51 		0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x7f, 0x7f,
52 		0x7f, 0x7f, 0x7f, 0x7f, 0x01, 0x01, 0x01, 0x7f, /* 0x50 */
53 		0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f, 0x7f,
54 		0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x7f, /* 0x60 */
55 		0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02,
56 		0x01, 0x7f, 0x02, 0x7f, 0x01, 0x7f, 0x02, 0x7f, /* 0x70 */
57 		0x01, 0x01, 0x02, 0x02, 0x01, 0x01, 0x7f, 0x7f
58 	};
59 	*count = ARRAY_SIZE(kind);
60 	*invalid = 0x7f;
61 	return kind;
62 }
63 
64 static const struct nvkm_mmu_func
65 nv50_mmu = {
66 	.dma_bits = 40,
67 	.mmu = {{ -1, -1, NVIF_CLASS_MMU_NV50}},
68 	.mem = {{ -1,  0, NVIF_CLASS_MEM_NV50}, nv50_mem_new, nv50_mem_map },
69 	.vmm = {{ -1, -1, NVIF_CLASS_VMM_NV50}, nv50_vmm_new, false, 0x1400 },
70 	.kind = nv50_mmu_kind,
71 };
72 
73 int
74 nv50_mmu_new(struct nvkm_device *device, int index, struct nvkm_mmu **pmmu)
75 {
76 	return nvkm_mmu_new_(&nv50_mmu, device, index, pmmu);
77 }
78