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git.ipfire.org Git - thirdparty/kernel/stable.git/blob - drivers/gpu/drm/nouveau/nvkm/subdev/mmu/vmmtu102.c
2 * Copyright 2018 Red Hat Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
24 #include <subdev/timer.h>
27 tu102_vmm_flush(struct nvkm_vmm
*vmm
, int depth
)
29 struct nvkm_device
*device
= vmm
->mmu
->subdev
.device
;
32 type
|= 0x00000001; /* PAGE_ALL */
33 if (atomic_read(&vmm
->engref
[NVKM_SUBDEV_BAR
]))
34 type
|= 0x00000004; /* HUB_ONLY */
36 mutex_lock(&vmm
->mmu
->mutex
);
38 if (!vmm
->rm
.bar2_pdb
)
39 nvkm_wr32(device
, 0xb830a0, vmm
->pd
->pt
[0]->addr
>> 8);
41 nvkm_wr32(device
, 0xb830a0, vmm
->rm
.bar2_pdb
>> 8);
42 nvkm_wr32(device
, 0xb830a4, 0x00000000);
43 nvkm_wr32(device
, 0xb830b0, 0x80000000 | type
);
45 nvkm_msec(device
, 2000,
46 if (!(nvkm_rd32(device
, 0xb830b0) & 0x80000000))
50 mutex_unlock(&vmm
->mmu
->mutex
);
53 static const struct nvkm_vmm_func
55 .join
= gv100_vmm_join
,
56 .part
= gf100_vmm_part
,
57 .aper
= gf100_vmm_aper
,
58 .valid
= gp100_vmm_valid
,
59 .flush
= tu102_vmm_flush
,
60 .mthd
= gp100_vmm_mthd
,
62 { 47, &gp100_vmm_desc_16
[4], NVKM_VMM_PAGE_Sxxx
},
63 { 38, &gp100_vmm_desc_16
[3], NVKM_VMM_PAGE_Sxxx
},
64 { 29, &gp100_vmm_desc_16
[2], NVKM_VMM_PAGE_Sxxx
},
65 { 21, &gp100_vmm_desc_16
[1], NVKM_VMM_PAGE_SVxC
},
66 { 16, &gp100_vmm_desc_16
[0], NVKM_VMM_PAGE_SVxC
},
67 { 12, &gp100_vmm_desc_12
[0], NVKM_VMM_PAGE_SVHx
},
73 tu102_vmm_new(struct nvkm_mmu
*mmu
, bool managed
, u64 addr
, u64 size
,
74 void *argv
, u32 argc
, struct lock_class_key
*key
,
75 const char *name
, struct nvkm_vmm
**pvmm
)
77 return gp100_vmm_new_(&tu102_vmm
, mmu
, managed
, addr
, size
,
78 argv
, argc
, key
, name
, pvmm
);