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1/*
2 * Copyright 2013 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#define mcp77_ram(p) container_of((p), struct mcp77_ram, base)
25#include "ram.h"
26
27struct mcp77_ram {
28 struct nvkm_ram base;
29 u64 poller_base;
30};
31
32static int
33mcp77_ram_init(struct nvkm_ram *base)
34{
35 struct mcp77_ram *ram = mcp77_ram(base);
36 struct nvkm_device *device = ram->base.fb->subdev.device;
37 u32 dniso = ((ram->base.size - (ram->poller_base + 0x00)) >> 5) - 1;
38 u32 hostnb = ((ram->base.size - (ram->poller_base + 0x20)) >> 5) - 1;
39 u32 flush = ((ram->base.size - (ram->poller_base + 0x40)) >> 5) - 1;
40
41 /* Enable NISO poller for various clients and set their associated
42 * read address, only for MCP77/78 and MCP79/7A. (fd#27501)
43 */
44 nvkm_wr32(device, 0x100c18, dniso);
45 nvkm_mask(device, 0x100c14, 0x00000000, 0x00000001);
46 nvkm_wr32(device, 0x100c1c, hostnb);
47 nvkm_mask(device, 0x100c14, 0x00000000, 0x00000002);
48 nvkm_wr32(device, 0x100c24, flush);
49 nvkm_mask(device, 0x100c14, 0x00000000, 0x00010000);
50 return 0;
51}
52
53static const struct nvkm_ram_func
54mcp77_ram_func = {
55 .init = mcp77_ram_init,
56};
57
58int
59mcp77_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)
60{
61 struct nvkm_device *device = fb->subdev.device;
62 u32 rsvd_head = ( 256 * 1024); /* vga memory */
63 u32 rsvd_tail = (1024 * 1024) + 0x1000; /* vbios etc + poller mem */
64 u64 base = (u64)nvkm_rd32(device, 0x100e10) << 12;
65 u64 size = (u64)nvkm_rd32(device, 0x100e14) << 12;
66 struct mcp77_ram *ram;
67 int ret;
68
69 if (!(ram = kzalloc(sizeof(*ram), GFP_KERNEL)))
70 return -ENOMEM;
71 *pram = &ram->base;
72
73 ret = nvkm_ram_ctor(&mcp77_ram_func, fb, NVKM_RAM_TYPE_STOLEN,
74 size, &ram->base);
75 if (ret)
76 return ret;
77
78 ram->poller_base = size - rsvd_tail;
79 ram->base.stolen = base;
80 nvkm_mm_fini(&ram->base.vram);
81
82 return nvkm_mm_init(&ram->base.vram, NVKM_RAM_MM_NORMAL,
83 rsvd_head >> NVKM_RAM_MM_SHIFT,
84 (size - rsvd_head - rsvd_tail) >>
85 NVKM_RAM_MM_SHIFT, 1);
86}
1/*
2 * Copyright 2013 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#define mcp77_ram(p) container_of((p), struct mcp77_ram, base)
25#include "ram.h"
26
27struct mcp77_ram {
28 struct nvkm_ram base;
29 u64 poller_base;
30};
31
32static int
33mcp77_ram_init(struct nvkm_ram *base)
34{
35 struct mcp77_ram *ram = mcp77_ram(base);
36 struct nvkm_device *device = ram->base.fb->subdev.device;
37 u32 dniso = ((ram->base.size - (ram->poller_base + 0x00)) >> 5) - 1;
38 u32 hostnb = ((ram->base.size - (ram->poller_base + 0x20)) >> 5) - 1;
39 u32 flush = ((ram->base.size - (ram->poller_base + 0x40)) >> 5) - 1;
40
41 /* Enable NISO poller for various clients and set their associated
42 * read address, only for MCP77/78 and MCP79/7A. (fd#25701)
43 */
44 nvkm_wr32(device, 0x100c18, dniso);
45 nvkm_mask(device, 0x100c14, 0x00000000, 0x00000001);
46 nvkm_wr32(device, 0x100c1c, hostnb);
47 nvkm_mask(device, 0x100c14, 0x00000000, 0x00000002);
48 nvkm_wr32(device, 0x100c24, flush);
49 nvkm_mask(device, 0x100c14, 0x00000000, 0x00010000);
50 return 0;
51}
52
53static const struct nvkm_ram_func
54mcp77_ram_func = {
55 .init = mcp77_ram_init,
56 .get = nv50_ram_get,
57 .put = nv50_ram_put,
58};
59
60int
61mcp77_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)
62{
63 struct nvkm_device *device = fb->subdev.device;
64 u32 rsvd_head = ( 256 * 1024); /* vga memory */
65 u32 rsvd_tail = (1024 * 1024) + 0x1000; /* vbios etc + poller mem */
66 u64 base = (u64)nvkm_rd32(device, 0x100e10) << 12;
67 u64 size = (u64)nvkm_rd32(device, 0x100e14) << 12;
68 struct mcp77_ram *ram;
69 int ret;
70
71 if (!(ram = kzalloc(sizeof(*ram), GFP_KERNEL)))
72 return -ENOMEM;
73 *pram = &ram->base;
74
75 ret = nvkm_ram_ctor(&mcp77_ram_func, fb, NVKM_RAM_TYPE_STOLEN,
76 size, 0, &ram->base);
77 if (ret)
78 return ret;
79
80 ram->poller_base = size - rsvd_tail;
81 ram->base.stolen = base;
82 nvkm_mm_fini(&ram->base.vram);
83
84 return nvkm_mm_init(&ram->base.vram, rsvd_head >> NVKM_RAM_MM_SHIFT,
85 (size - rsvd_head - rsvd_tail) >>
86 NVKM_RAM_MM_SHIFT, 1);
87}