diff options
Diffstat (limited to 'drivers/gpu')
-rw-r--r-- | drivers/gpu/drm/nouveau/Makefile | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/core/include/subdev/bios/perf.h | 14 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/bios/perf.c | 75 |
3 files changed, 90 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile index 6adf1455255..1b05d114dee 100644 --- a/drivers/gpu/drm/nouveau/Makefile +++ b/drivers/gpu/drm/nouveau/Makefile | |||
@@ -35,6 +35,7 @@ nouveau-y += core/subdev/bios/gpio.o | |||
35 | nouveau-y += core/subdev/bios/i2c.o | 35 | nouveau-y += core/subdev/bios/i2c.o |
36 | nouveau-y += core/subdev/bios/init.o | 36 | nouveau-y += core/subdev/bios/init.o |
37 | nouveau-y += core/subdev/bios/mxm.o | 37 | nouveau-y += core/subdev/bios/mxm.o |
38 | nouveau-y += core/subdev/bios/perf.o | ||
38 | nouveau-y += core/subdev/bios/pll.o | 39 | nouveau-y += core/subdev/bios/pll.o |
39 | nouveau-y += core/subdev/bios/therm.o | 40 | nouveau-y += core/subdev/bios/therm.o |
40 | nouveau-y += core/subdev/clock/nv04.o | 41 | nouveau-y += core/subdev/clock/nv04.o |
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/bios/perf.h b/drivers/gpu/drm/nouveau/core/include/subdev/bios/perf.h new file mode 100644 index 00000000000..0b285e99be5 --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/include/subdev/bios/perf.h | |||
@@ -0,0 +1,14 @@ | |||
1 | #ifndef __NVBIOS_PERF_H__ | ||
2 | #define __NVBIOS_PERF_H__ | ||
3 | |||
4 | struct nouveau_bios; | ||
5 | |||
6 | struct nvbios_perf_fan { | ||
7 | u32 pwm_divisor; | ||
8 | }; | ||
9 | |||
10 | int | ||
11 | nvbios_perf_fan_parse(struct nouveau_bios *, struct nvbios_perf_fan *); | ||
12 | |||
13 | |||
14 | #endif | ||
diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/perf.c b/drivers/gpu/drm/nouveau/core/subdev/bios/perf.c new file mode 100644 index 00000000000..bcbb056c288 --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/subdev/bios/perf.c | |||
@@ -0,0 +1,75 @@ | |||
1 | /* | ||
2 | * Copyright 2012 Nouveau Community | ||
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: Martin Peres | ||
23 | */ | ||
24 | |||
25 | #include <subdev/bios.h> | ||
26 | #include <subdev/bios/bit.h> | ||
27 | #include <subdev/bios/perf.h> | ||
28 | |||
29 | static u16 | ||
30 | perf_table(struct nouveau_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len) | ||
31 | { | ||
32 | struct bit_entry bit_P; | ||
33 | u16 perf = 0x0000; | ||
34 | |||
35 | if (!bit_entry(bios, 'P', &bit_P)) { | ||
36 | if (bit_P.version <= 2) { | ||
37 | perf = nv_ro16(bios, bit_P.offset + 0); | ||
38 | if (perf) { | ||
39 | *ver = nv_ro08(bios, perf + 0); | ||
40 | *hdr = nv_ro08(bios, perf + 1); | ||
41 | } | ||
42 | } else | ||
43 | nv_error(bios, "unknown offset for perf in BIT P %d\n", | ||
44 | bit_P.version); | ||
45 | } | ||
46 | |||
47 | if (bios->bmp_offset) { | ||
48 | if (nv_ro08(bios, bios->bmp_offset + 6) >= 0x25) { | ||
49 | perf = nv_ro16(bios, bios->bmp_offset + 0x94); | ||
50 | if (perf) { | ||
51 | *hdr = nv_ro08(bios, perf + 0); | ||
52 | *ver = nv_ro08(bios, perf + 1); | ||
53 | } | ||
54 | } | ||
55 | } | ||
56 | |||
57 | return perf; | ||
58 | } | ||
59 | |||
60 | int | ||
61 | nvbios_perf_fan_parse(struct nouveau_bios *bios, | ||
62 | struct nvbios_perf_fan *fan) | ||
63 | { | ||
64 | u8 ver = 0, hdr = 0, cnt = 0, len = 0; | ||
65 | u16 perf = perf_table(bios, &ver, &hdr, &cnt, &len); | ||
66 | if (!perf) | ||
67 | return -ENODEV; | ||
68 | |||
69 | if (ver >= 0x20 && ver < 0x40 && hdr > 6) | ||
70 | fan->pwm_divisor = nv_ro16(bios, perf + 6); | ||
71 | else | ||
72 | fan->pwm_divisor = 0; | ||
73 | |||
74 | return 0; | ||
75 | } | ||