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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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66b3851a69
This function was removed during iSeries cleanup but will prove useful in the following patches. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
310 lines
7.7 KiB
C
310 lines
7.7 KiB
C
/*
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* Provides the Hypervisor PCI calls for iSeries Linux Parition.
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* Copyright (C) 2001 <Wayne G Holm> <IBM Corporation>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the:
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* Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA
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*
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* Change Activity:
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* Created, Jan 9, 2001
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*/
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#ifndef _PLATFORMS_ISERIES_CALL_PCI_H
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#define _PLATFORMS_ISERIES_CALL_PCI_H
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#include <asm/iseries/hv_call_sc.h>
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#include <asm/iseries/hv_types.h>
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/*
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* DSA == Direct Select Address
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* this struct must be 64 bits in total
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*/
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struct HvCallPci_DsaAddr {
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u16 busNumber; /* PHB index? */
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u8 subBusNumber; /* PCI bus number? */
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u8 deviceId; /* device and function? */
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u8 barNumber;
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u8 reserved[3];
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};
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union HvDsaMap {
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u64 DsaAddr;
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struct HvCallPci_DsaAddr Dsa;
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};
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struct HvCallPci_LoadReturn {
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u64 rc;
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u64 value;
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};
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enum HvCallPci_DeviceType {
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HvCallPci_NodeDevice = 1,
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HvCallPci_SpDevice = 2,
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HvCallPci_IopDevice = 3,
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HvCallPci_BridgeDevice = 4,
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HvCallPci_MultiFunctionDevice = 5,
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HvCallPci_IoaDevice = 6
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};
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struct HvCallPci_DeviceInfo {
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u32 deviceType; /* See DeviceType enum for values */
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};
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struct HvCallPci_BusUnitInfo {
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u32 sizeReturned; /* length of data returned */
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u32 deviceType; /* see DeviceType enum for values */
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};
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struct HvCallPci_BridgeInfo {
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struct HvCallPci_BusUnitInfo busUnitInfo; /* Generic bus unit info */
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u8 subBusNumber; /* Bus number of secondary bus */
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u8 maxAgents; /* Max idsels on secondary bus */
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u8 maxSubBusNumber; /* Max Sub Bus */
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u8 logicalSlotNumber; /* Logical Slot Number for IOA */
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};
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/*
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* Maximum BusUnitInfo buffer size. Provided for clients so
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* they can allocate a buffer big enough for any type of bus
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* unit. Increase as needed.
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*/
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enum {HvCallPci_MaxBusUnitInfoSize = 128};
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struct HvCallPci_BarParms {
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u64 vaddr;
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u64 raddr;
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u64 size;
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u64 protectStart;
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u64 protectEnd;
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u64 relocationOffset;
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u64 pciAddress;
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u64 reserved[3];
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};
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enum HvCallPci_VpdType {
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HvCallPci_BusVpd = 1,
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HvCallPci_BusAdapterVpd = 2
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};
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#define HvCallPciConfigLoad8 HvCallPci + 0
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#define HvCallPciConfigLoad16 HvCallPci + 1
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#define HvCallPciConfigLoad32 HvCallPci + 2
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#define HvCallPciConfigStore8 HvCallPci + 3
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#define HvCallPciConfigStore16 HvCallPci + 4
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#define HvCallPciConfigStore32 HvCallPci + 5
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#define HvCallPciEoi HvCallPci + 16
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#define HvCallPciGetBarParms HvCallPci + 18
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#define HvCallPciMaskFisr HvCallPci + 20
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#define HvCallPciUnmaskFisr HvCallPci + 21
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#define HvCallPciSetSlotReset HvCallPci + 25
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#define HvCallPciGetDeviceInfo HvCallPci + 27
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#define HvCallPciGetCardVpd HvCallPci + 28
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#define HvCallPciBarLoad8 HvCallPci + 40
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#define HvCallPciBarLoad16 HvCallPci + 41
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#define HvCallPciBarLoad32 HvCallPci + 42
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#define HvCallPciBarLoad64 HvCallPci + 43
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#define HvCallPciBarStore8 HvCallPci + 44
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#define HvCallPciBarStore16 HvCallPci + 45
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#define HvCallPciBarStore32 HvCallPci + 46
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#define HvCallPciBarStore64 HvCallPci + 47
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#define HvCallPciMaskInterrupts HvCallPci + 48
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#define HvCallPciUnmaskInterrupts HvCallPci + 49
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#define HvCallPciGetBusUnitInfo HvCallPci + 50
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static inline u64 HvCallPci_configLoad16(u16 busNumber, u8 subBusNumber,
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u8 deviceId, u32 offset, u16 *value)
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{
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struct HvCallPci_DsaAddr dsa;
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struct HvCallPci_LoadReturn retVal;
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*((u64*)&dsa) = 0;
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dsa.busNumber = busNumber;
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dsa.subBusNumber = subBusNumber;
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dsa.deviceId = deviceId;
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HvCall3Ret16(HvCallPciConfigLoad16, &retVal, *(u64 *)&dsa, offset, 0);
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*value = retVal.value;
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return retVal.rc;
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}
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static inline u64 HvCallPci_configLoad32(u16 busNumber, u8 subBusNumber,
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u8 deviceId, u32 offset, u32 *value)
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{
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struct HvCallPci_DsaAddr dsa;
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struct HvCallPci_LoadReturn retVal;
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*((u64*)&dsa) = 0;
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dsa.busNumber = busNumber;
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dsa.subBusNumber = subBusNumber;
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dsa.deviceId = deviceId;
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HvCall3Ret16(HvCallPciConfigLoad32, &retVal, *(u64 *)&dsa, offset, 0);
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*value = retVal.value;
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return retVal.rc;
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}
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static inline u64 HvCallPci_configStore8(u16 busNumber, u8 subBusNumber,
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u8 deviceId, u32 offset, u8 value)
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{
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struct HvCallPci_DsaAddr dsa;
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*((u64*)&dsa) = 0;
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dsa.busNumber = busNumber;
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dsa.subBusNumber = subBusNumber;
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dsa.deviceId = deviceId;
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return HvCall4(HvCallPciConfigStore8, *(u64 *)&dsa, offset, value, 0);
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}
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static inline u64 HvCallPci_eoi(u16 busNumberParm, u8 subBusParm,
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u8 deviceIdParm)
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{
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struct HvCallPci_DsaAddr dsa;
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struct HvCallPci_LoadReturn retVal;
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*((u64*)&dsa) = 0;
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dsa.busNumber = busNumberParm;
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dsa.subBusNumber = subBusParm;
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dsa.deviceId = deviceIdParm;
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HvCall1Ret16(HvCallPciEoi, &retVal, *(u64*)&dsa);
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return retVal.rc;
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}
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static inline u64 HvCallPci_getBarParms(u16 busNumberParm, u8 subBusParm,
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u8 deviceIdParm, u8 barNumberParm, u64 parms, u32 sizeofParms)
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{
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struct HvCallPci_DsaAddr dsa;
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*((u64*)&dsa) = 0;
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dsa.busNumber = busNumberParm;
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dsa.subBusNumber = subBusParm;
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dsa.deviceId = deviceIdParm;
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dsa.barNumber = barNumberParm;
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return HvCall3(HvCallPciGetBarParms, *(u64*)&dsa, parms, sizeofParms);
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}
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static inline u64 HvCallPci_maskFisr(u16 busNumberParm, u8 subBusParm,
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u8 deviceIdParm, u64 fisrMask)
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{
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struct HvCallPci_DsaAddr dsa;
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*((u64*)&dsa) = 0;
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dsa.busNumber = busNumberParm;
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dsa.subBusNumber = subBusParm;
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dsa.deviceId = deviceIdParm;
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return HvCall2(HvCallPciMaskFisr, *(u64*)&dsa, fisrMask);
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}
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static inline u64 HvCallPci_unmaskFisr(u16 busNumberParm, u8 subBusParm,
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u8 deviceIdParm, u64 fisrMask)
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{
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struct HvCallPci_DsaAddr dsa;
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*((u64*)&dsa) = 0;
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dsa.busNumber = busNumberParm;
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dsa.subBusNumber = subBusParm;
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dsa.deviceId = deviceIdParm;
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return HvCall2(HvCallPciUnmaskFisr, *(u64*)&dsa, fisrMask);
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}
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static inline u64 HvCallPci_getDeviceInfo(u16 busNumberParm, u8 subBusParm,
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u8 deviceNumberParm, u64 parms, u32 sizeofParms)
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{
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struct HvCallPci_DsaAddr dsa;
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*((u64*)&dsa) = 0;
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dsa.busNumber = busNumberParm;
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dsa.subBusNumber = subBusParm;
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dsa.deviceId = deviceNumberParm << 4;
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return HvCall3(HvCallPciGetDeviceInfo, *(u64*)&dsa, parms, sizeofParms);
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}
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static inline u64 HvCallPci_maskInterrupts(u16 busNumberParm, u8 subBusParm,
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u8 deviceIdParm, u64 interruptMask)
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{
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struct HvCallPci_DsaAddr dsa;
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*((u64*)&dsa) = 0;
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dsa.busNumber = busNumberParm;
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dsa.subBusNumber = subBusParm;
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dsa.deviceId = deviceIdParm;
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return HvCall2(HvCallPciMaskInterrupts, *(u64*)&dsa, interruptMask);
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}
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static inline u64 HvCallPci_unmaskInterrupts(u16 busNumberParm, u8 subBusParm,
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u8 deviceIdParm, u64 interruptMask)
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{
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struct HvCallPci_DsaAddr dsa;
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*((u64*)&dsa) = 0;
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dsa.busNumber = busNumberParm;
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dsa.subBusNumber = subBusParm;
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dsa.deviceId = deviceIdParm;
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return HvCall2(HvCallPciUnmaskInterrupts, *(u64*)&dsa, interruptMask);
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}
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static inline u64 HvCallPci_getBusUnitInfo(u16 busNumberParm, u8 subBusParm,
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u8 deviceIdParm, u64 parms, u32 sizeofParms)
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{
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struct HvCallPci_DsaAddr dsa;
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*((u64*)&dsa) = 0;
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dsa.busNumber = busNumberParm;
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dsa.subBusNumber = subBusParm;
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dsa.deviceId = deviceIdParm;
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return HvCall3(HvCallPciGetBusUnitInfo, *(u64*)&dsa, parms,
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sizeofParms);
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}
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static inline int HvCallPci_getBusVpd(u16 busNumParm, u64 destParm,
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u16 sizeParm)
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{
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u64 xRc = HvCall4(HvCallPciGetCardVpd, busNumParm, destParm,
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sizeParm, HvCallPci_BusVpd);
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if (xRc == -1)
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return -1;
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else
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return xRc & 0xFFFF;
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}
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#endif /* _PLATFORMS_ISERIES_CALL_PCI_H */
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