sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

UefiPayloadPkg: Add PCI support from DuetPkg

Browse Source 
In coreboot, we mark GPU prefmem above 4GB, because NVIDIA wants a lot
(16GB region on the 30 series), otherwise coreboot will obviously fail
to allocate the resources.

In EDK2, we then end up hitting this assert:

    InitRootBridge: populated root bus 0, with room for 36 subordinate bus(es)
    RootBridge: PciRoot(0x0)
      Support/Attr: 7001F / 7001F
        DmaAbove4G: No
    NoExtConfSpace: No
         AllocAttr: 0 ()
               Bus: 0 - 24 Translation=0
                Io: 1000 - EFFF Translation=0
               Mem: 80400000 - 1001FFFFFF Translation=0
        MemAbove4G: FFFFFFFFFFFFFFFF - 0 Translation=0
              PMem: FFFFFFFFFFFFFFFF - 0 Translation=0
       PMemAbove4G: FFFFFFFFFFFFFFFF - 0 Translation=0
    ASSERT [PciHostBridgeDxe] .../edk2/MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciRootBridgeIo.c(120): Bridge->Mem.Limit < 0x0000000100000000ULL

So, bring back Pci*NoEnumerationDxe from the deleted DuetPkg, which
doesn't check anything and let's us boot.

Signed-off-by: Tim Crawford <tcrawford@system76.com>
This commit is contained in:
Tim Crawford
2021-10-26 16:36:22 -06:00
parent 61a7f360d9
commit bbc04972bc
36 changed files with 13072 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

100
UefiPayloadPkg/PciBusNoEnumerationDxe/PciPowerManagement.c Normal file
View File

@@ -0,0 +1,100 @@
/*++
Copyright (c) 2005 - 2012, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
PciPowerManagement.c
Abstract:
PCI Bus Driver
Revision History
--*/
#include "PciBus.h"
EFI_STATUS
EFIAPI
ResetPowerManagementFeature (
IN PCI_IO_DEVICE *PciIoDevice
)
/*++
Routine Description:
This function is intended to turn off PWE assertion and
put the device to D0 state if the device supports
PCI Power Management.
Arguments:
Returns:
None
--*/
{
EFI_STATUS Status;
UINT8 PowerManagementRegBlock;
UINT16 PowerManagementCSR;
PowerManagementRegBlock = 0;
Status = LocateCapabilityRegBlock (
PciIoDevice,
EFI_PCI_CAPABILITY_ID_PMI,
&PowerManagementRegBlock,
NULL
);
if (EFI_ERROR (Status)) {
return EFI_UNSUPPORTED;
}
//
// Turn off the PWE assertion and put the device into D0 State
//
//
// Read PMCSR
//
Status = PciIoDevice->PciIo.Pci.Read (
&PciIoDevice->PciIo,
EfiPciIoWidthUint16,
PowerManagementRegBlock + 4,
1,
&PowerManagementCSR
);
if (!EFI_ERROR (Status)) {
//
// Clear PME_Status bit
//
PowerManagementCSR |= BIT15;
//
// Clear PME_En bit. PowerState = D0.
//
PowerManagementCSR &= ~(BIT8 | BIT1 | BIT0);
//
// Write PMCSR
//
Status = PciIoDevice->PciIo.Pci.Write (
&PciIoDevice->PciIo,
EfiPciIoWidthUint16,
PowerManagementRegBlock + 4,
1,
&PowerManagementCSR
);
}
return Status;
}