1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
Name (_HID, EisaId("PNP0A08")) /* PCI Express Bus */
Name (_CID, EisaId("PNP0A03")) /* PCI Bus */
Device (MCHC)
{
Name (_ADR, 0x00000000) /* Device 0 Function 0 */
OperationRegion (MCHP, PCI_Config, 0x00, 0x100)
Field (MCHP, DWordAcc, NoLock, Preserve)
{
Offset (0x60), /* PCIEXBAR (0:0:0:60) */
PXEN, 1, /* Enable */
PXSZ, 2, /* PCI Express Size */
, 25,
PXBR, 11, /* PCI Express Base Address */
Offset (0xbc), /* TOLUD (0:0:0:bc) */
, 20,
TLUD, 12, /* Top of Lower Usable DRAM */
}
}
External (A4GS, IntObj)
External (A4GB, IntObj)
/* Current Resource Settings */
Method (_CRS, 0, Serialized)
{
Name (MCRS, ResourceTemplate ()
{
/* Bus Numbers */
WordBusNumber (ResourceProducer, MinFixed, MaxFixed, PosDecode,
0x0000, 0x0000, 0x00ff, 0x0000, 0x0100)
/* IO Region 0: 0x0000 - 0x0cf7 */
DWordIO (ResourceProducer, MinFixed, MaxFixed, PosDecode, EntireRange,
0x0000, 0x0000, 0x0cf7, 0x0000, 0x0cf8)
/* PCI Config Space */
Io (Decode16, 0x0cf8, 0x0cf8, 0x0001, 0x0008)
/* IO Region 1: 0x1000 - 0xffff */
DWordIO (ResourceProducer, MinFixed, MaxFixed, PosDecode, EntireRange,
0x0000, 0x01000, 0xffff, 0x0000, 0xf000)
/*
* Descriptor: Legacy VGA video RAM
* Start: 0xa0000
* End: 0xbffff
*/
DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
Cacheable, ReadWrite,
0x00000000, 0x000a0000, 0x000bffff, 0x00000000,
0x00020000,,,)
/*
* PCI MMIO Region (TOLUD - PCI extended base MMCONF)
* This assumes that MMCONF is placed after PCI config space,
* and that no resources are allocated after the MMCONF region.
* This works, since MMCONF is hardcoded to 0xe00000000.
*/
DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
NonCacheable, ReadWrite,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000,,, PM01)
/*
* PCI Memory Region above 4 GiB
* (TOUUD - (TOUUD + ABOVE_4G_MMIO_SIZE))
*/
QWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed,
NonCacheable, ReadWrite,
0x00000000, 0x00010000, 0x0001ffff, 0x00000000,
0x00010000,,, PM02)
})
/* Find PCI resource area in MCRS */
CreateDwordField (MCRS, PM01._MIN, PMIN)
CreateDwordField (MCRS, PM01._MAX, PMAX)
CreateDwordField (MCRS, PM01._LEN, PLEN)
/* Read C-Unit PCI CFG Reg. 0xBC for TOLUD (shadow from B-Unit) */
PMIN = ^MCHC.TLUD << 20
/* Use PCR base to ensure PMAX below GPIO controllers attached to _SB */
PMAX = CONFIG_PCR_BASE_ADDRESS & 0xF0000000
/* Calculate PCI MMIO Length */
PLEN = PMAX - PMIN + 1
/* Patch PM02 range based on Memory Size */
If (A4GS == 0) {
CreateQwordField (MCRS, PM02._LEN, MSEN)
MSEN = 0
} Else {
CreateQwordField (MCRS, PM02._MIN, MMIN)
CreateQwordField (MCRS, PM02._MAX, MMAX)
CreateQwordField (MCRS, PM02._LEN, MLEN)
/* Set 64bit MMIO resource base and length */
MLEN = A4GS
MMIN = A4GB
MMAX = MMIN + MLEN - 1
}
Return (MCRS)
}
Device (PDRC) /* PCI Device Resource Consumption */
{
Name (_HID, EisaId("PNP0C02"))
Name (_UID, 1)
Method (_CRS, 0, Serialized)
{
Name (BUF0, ResourceTemplate ()
{
/* PCI Express BAR */
Memory32Fixed (ReadWrite,
CONFIG_ECAM_MMCONF_BASE_ADDRESS,
CONFIG_ECAM_MMCONF_LENGTH, PCIX)
/* Local APIC range (0xfee0_0000 to 0xfeef_ffff) */
Memory32Fixed (ReadOnly, 0x0fee00000, 0x00010000, LIOH)
})
Return (BUF0)
}
}
/* GFX 00:02.0 */
#include <drivers/intel/gma/acpi/gfx.asl>
|
