| /* 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 () |
| { |
| /* 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> |