1 /*
2 * Copyright 2023 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 "vmm.h"
23
24 #include <nvrm/nvtypes.h>
25 #include <nvrm/535.113.01/common/sdk/nvidia/inc/class/cl90f1.h>
26 #include <nvrm/535.113.01/common/sdk/nvidia/inc/ctrl/ctrl90f1.h>
27 #include <nvrm/535.113.01/common/sdk/nvidia/inc/nvos.h>
28
29 static int
r535_mmu_promote_vmm(struct nvkm_vmm * vmm)30 r535_mmu_promote_vmm(struct nvkm_vmm *vmm)
31 {
32 NV_VASPACE_ALLOCATION_PARAMETERS *args;
33 int ret;
34
35 ret = nvkm_gsp_client_device_ctor(vmm->mmu->subdev.device->gsp,
36 &vmm->rm.client, &vmm->rm.device);
37 if (ret)
38 return ret;
39
40 args = nvkm_gsp_rm_alloc_get(&vmm->rm.device.object, 0x90f10000, FERMI_VASPACE_A,
41 sizeof(*args), &vmm->rm.object);
42 if (IS_ERR(args))
43 return PTR_ERR(args);
44
45 args->index = NV_VASPACE_ALLOCATION_INDEX_GPU_NEW;
46
47 ret = nvkm_gsp_rm_alloc_wr(&vmm->rm.object, args);
48 if (ret)
49 return ret;
50
51 {
52 NV90F1_CTRL_VASPACE_COPY_SERVER_RESERVED_PDES_PARAMS *ctrl;
53
54 mutex_lock(&vmm->mutex.vmm);
55 ret = nvkm_vmm_get_locked(vmm, true, false, false, 0x1d, 32, 0x20000000,
56 &vmm->rm.rsvd);
57 mutex_unlock(&vmm->mutex.vmm);
58 if (ret)
59 return ret;
60
61 ctrl = nvkm_gsp_rm_ctrl_get(&vmm->rm.object,
62 NV90F1_CTRL_CMD_VASPACE_COPY_SERVER_RESERVED_PDES,
63 sizeof(*ctrl));
64 if (IS_ERR(ctrl))
65 return PTR_ERR(ctrl);
66
67 ctrl->pageSize = 0x20000000;
68 ctrl->virtAddrLo = vmm->rm.rsvd->addr;
69 ctrl->virtAddrHi = vmm->rm.rsvd->addr + vmm->rm.rsvd->size - 1;
70 ctrl->numLevelsToCopy = vmm->pd->pde[0]->pde[0] ? 3 : 2;
71 ctrl->levels[0].physAddress = vmm->pd->pt[0]->addr;
72 ctrl->levels[0].size = 0x20;
73 ctrl->levels[0].aperture = 1;
74 ctrl->levels[0].pageShift = 0x2f;
75 ctrl->levels[1].physAddress = vmm->pd->pde[0]->pt[0]->addr;
76 ctrl->levels[1].size = 0x1000;
77 ctrl->levels[1].aperture = 1;
78 ctrl->levels[1].pageShift = 0x26;
79 if (vmm->pd->pde[0]->pde[0]) {
80 ctrl->levels[2].physAddress = vmm->pd->pde[0]->pde[0]->pt[0]->addr;
81 ctrl->levels[2].size = 0x1000;
82 ctrl->levels[2].aperture = 1;
83 ctrl->levels[2].pageShift = 0x1d;
84 }
85
86 ret = nvkm_gsp_rm_ctrl_wr(&vmm->rm.object, ctrl);
87 }
88
89 return ret;
90 }
91
92 static void
r535_mmu_dtor(struct nvkm_mmu * mmu)93 r535_mmu_dtor(struct nvkm_mmu *mmu)
94 {
95 kfree(mmu->func);
96 }
97
98 int
r535_mmu_new(const struct nvkm_mmu_func * hw,struct nvkm_device * device,enum nvkm_subdev_type type,int inst,struct nvkm_mmu ** pmmu)99 r535_mmu_new(const struct nvkm_mmu_func *hw,
100 struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
101 struct nvkm_mmu **pmmu)
102 {
103 struct nvkm_mmu_func *rm;
104 int ret;
105
106 if (!(rm = kzalloc(sizeof(*rm), GFP_KERNEL)))
107 return -ENOMEM;
108
109 rm->dtor = r535_mmu_dtor;
110 rm->dma_bits = hw->dma_bits;
111 rm->mmu = hw->mmu;
112 rm->mem = hw->mem;
113 rm->vmm = hw->vmm;
114 rm->kind = hw->kind;
115 rm->kind_sys = hw->kind_sys;
116 rm->promote_vmm = r535_mmu_promote_vmm;
117
118 ret = nvkm_mmu_new_(rm, device, type, inst, pmmu);
119 if (ret)
120 kfree(rm);
121
122 return ret;
123 }
124