coreboot
coreboot is an Open Source project aimed at replacing the proprietary BIOS found in most computers.
gfx.h
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1 /* SPDX-License-Identifier: GPL-2.0-only */
2 
3 #ifndef _BAYTRAIL_GFX_H_
4 #define _BAYTRAIL_GFX_H_
5 
6 /*
7  * PCI config registers.
8  */
9 
10 #define GGC 0x50
11 # define GGC_VGA_DISABLE (1 << 1)
12 # define GGC_GTT_SIZE_MASK (3 << 8)
13 # define GGC_GTT_SIZE_0MB (0 << 8)
14 # define GGC_GTT_SIZE_1MB (1 << 8)
15 # define GGC_GTT_SIZE_2MB (2 << 8)
16 # define GGC_GSM_SIZE_MASK (0x1f << 3)
17 # define GGC_GSM_SIZE_0MB (0 << 3)
18 # define GGC_GSM_SIZE_32MB (1 << 3)
19 # define GGC_GSM_SIZE_64MB (2 << 3)
20 # define GGC_GSM_SIZE_96MB (3 << 3)
21 # define GGC_GSM_SIZE_128MB (4 << 3)
22 # define GGC_GSM_SIZE_160MB (5 << 3)
23 # define GGC_GSM_SIZE_192MB (6 << 3)
24 # define GGC_GSM_SIZE_224MB (7 << 3)
25 # define GGC_GSM_SIZE_256MB (8 << 3)
26 # define GGC_GSM_SIZE_288MB (9 << 3)
27 # define GGC_GSM_SIZE_320MB (10 << 3)
28 # define GGC_GSM_SIZE_352MB (11 << 3)
29 # define GGC_GSM_SIZE_384MB (12 << 3)
30 # define GGC_GSM_SIZE_416MB (13 << 3)
31 # define GGC_GSM_SIZE_448MB (14 << 3)
32 # define GGC_GSM_SIZE_480MB (15 << 3)
33 # define GGC_GSM_SIZE_512MB (16 << 3)
34 
35 #define GSM_BASE 0x5c
36 #define GTT_BASE 0x70
37 
38 #define MSAC 0x62
39 #define APERTURE_SIZE_MASK (3 << 1)
40 #define APERTURE_SIZE_128MB (0 << 1)
41 #define APERTURE_SIZE_256MB (1 << 1)
42 #define APERTURE_SIZE_512MB (3 << 1)
43 
44 #define VLV_DISPLAY_BASE 0x180000
45 #define PIPEA_REG(reg) (VLV_DISPLAY_BASE + (reg))
46 #define PIPEB_REG(reg) (VLV_DISPLAY_BASE + 0x100 + (reg))
47 
48 /* Panel control registers */
49 #define HOTPLUG_CTRL 0x61110
50 #define PP_CONTROL 0x61204
51 #define PP_CONTROL_UNLOCK 0xabcd0000
52 #define PP_CONTROL_EDP_FORCE_VDD (1 << 3)
53 #define PP_ON_DELAYS 0x61208
54 #define PP_OFF_DELAYS 0x6120c
55 #define PP_DIVISOR 0x61210
56 #define BACKLIGHT_CTL2 0x61250
57 #define BACKLIGHT_ENABLE (1 << 31)
58 #define BACKLIGHT_CTL 0x61254
59 
60 #endif /* _BAYTRAIL_GFX_H_ */