1 /*
2  * Copyright 2017 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 #include "mem.h"
23 #include "vmm.h"
24 
25 #include <subdev/fb.h>
26 
27 #include <nvif/class.h>
28 
29 static const struct nvkm_mmu_func
30 gm20b_mmu = {
31 	.dma_bits = 40,
32 	.mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}},
33 	.mem = {{ -1, -1, NVIF_CLASS_MEM_GF100}, .umap = gf100_mem_map },
34 	.vmm = {{ -1,  0, NVIF_CLASS_VMM_GM200}, gm20b_vmm_new },
35 	.kind = gm200_mmu_kind,
36 	.kind_sys = true,
37 };
38 
39 static const struct nvkm_mmu_func
40 gm20b_mmu_fixed = {
41 	.dma_bits = 40,
42 	.mmu = {{ -1, -1, NVIF_CLASS_MMU_GF100}},
43 	.mem = {{ -1, -1, NVIF_CLASS_MEM_GF100}, .umap = gf100_mem_map },
44 	.vmm = {{ -1, -1, NVIF_CLASS_VMM_GM200}, gm20b_vmm_new_fixed },
45 	.kind = gm200_mmu_kind,
46 	.kind_sys = true,
47 };
48 
49 int
50 gm20b_mmu_new(struct nvkm_device *device, int index, struct nvkm_mmu **pmmu)
51 {
52 	if (device->fb->page)
53 		return nvkm_mmu_new_(&gm20b_mmu_fixed, device, index, pmmu);
54 	return nvkm_mmu_new_(&gm20b_mmu, device, index, pmmu);
55 }
56