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qemu/hw/s390x/s390-pci-bus.h
Yi Min Zhao 715838881f s390x/pci: separate s390_pcihost_iommu_configure function 
Split s390_pcihost_iommu_configure() into separate functions for
configuring and deconfiguring in order to make the code more readable.

Signed-off-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2016-05-17 15:50:29 +02:00

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/*
* s390 PCI BUS definitions
*
* Copyright 2014 IBM Corp.
* Author(s): Frank Blaschka <frank.blaschka@de.ibm.com>
* Hong Bo Li <lihbbj@cn.ibm.com>
* Yi Min Zhao <zyimin@cn.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or (at
* your option) any later version. See the COPYING file in the top-level
* directory.
*/
#ifndef HW_S390_PCI_BUS_H
#define HW_S390_PCI_BUS_H
#include <hw/pci/pci.h>
#include <hw/pci/pci_host.h>
#include "hw/s390x/sclp.h"
#include "hw/s390x/s390_flic.h"
#include "hw/s390x/css.h"
#define TYPE_S390_PCI_HOST_BRIDGE "s390-pcihost"
#define FH_VIRT 0x00ff0000
#define ENABLE_BIT_OFFSET 31
#define FH_ENABLED (1 << ENABLE_BIT_OFFSET)
#define S390_PCIPT_ADAPTER 2
#define S390_PCI_HOST_BRIDGE(obj) \
OBJECT_CHECK(S390pciState, (obj), TYPE_S390_PCI_HOST_BRIDGE)
#define HP_EVENT_TO_CONFIGURED 0x0301
#define HP_EVENT_RESERVED_TO_STANDBY 0x0302
#define HP_EVENT_CONFIGURED_TO_STBRES 0x0304
#define HP_EVENT_STANDBY_TO_RESERVED 0x0308
#define ERR_EVENT_INVALAS 0x1
#define ERR_EVENT_OORANGE 0x2
#define ERR_EVENT_INVALTF 0x3
#define ERR_EVENT_TPROTE 0x4
#define ERR_EVENT_APROTE 0x5
#define ERR_EVENT_KEYE 0x6
#define ERR_EVENT_INVALTE 0x7
#define ERR_EVENT_INVALTL 0x8
#define ERR_EVENT_TT 0x9
#define ERR_EVENT_INVALMS 0xa
#define ERR_EVENT_SERR 0xb
#define ERR_EVENT_NOMSI 0x10
#define ERR_EVENT_INVALBV 0x11
#define ERR_EVENT_AIBV 0x12
#define ERR_EVENT_AIRERR 0x13
#define ERR_EVENT_FMBA 0x2a
#define ERR_EVENT_FMBUP 0x2b
#define ERR_EVENT_FMBPRO 0x2c
#define ERR_EVENT_CCONF 0x30
#define ERR_EVENT_SERVAC 0x3a
#define ERR_EVENT_PERMERR 0x3b
#define ERR_EVENT_Q_BIT 0x2
#define ERR_EVENT_MVN_OFFSET 16
#define ZPCI_MSI_VEC_BITS 11
#define ZPCI_MSI_VEC_MASK 0x7ff
#define ZPCI_MSI_ADDR 0xfe00000000000000ULL
#define ZPCI_SDMA_ADDR 0x100000000ULL
#define ZPCI_EDMA_ADDR 0x1ffffffffffffffULL
#define PAGE_SHIFT 12
#define PAGE_MASK (~(PAGE_SIZE-1))
#define PAGE_DEFAULT_ACC 0
#define PAGE_DEFAULT_KEY (PAGE_DEFAULT_ACC << 4)
/* I/O Translation Anchor (IOTA) */
enum ZpciIoatDtype {
ZPCI_IOTA_STO = 0,
ZPCI_IOTA_RTTO = 1,
ZPCI_IOTA_RSTO = 2,
ZPCI_IOTA_RFTO = 3,
ZPCI_IOTA_PFAA = 4,
ZPCI_IOTA_IOPFAA = 5,
ZPCI_IOTA_IOPTO = 7
};
#define ZPCI_IOTA_IOT_ENABLED 0x800ULL
#define ZPCI_IOTA_DT_ST (ZPCI_IOTA_STO << 2)
#define ZPCI_IOTA_DT_RT (ZPCI_IOTA_RTTO << 2)
#define ZPCI_IOTA_DT_RS (ZPCI_IOTA_RSTO << 2)
#define ZPCI_IOTA_DT_RF (ZPCI_IOTA_RFTO << 2)
#define ZPCI_IOTA_DT_PF (ZPCI_IOTA_PFAA << 2)
#define ZPCI_IOTA_FS_4K 0
#define ZPCI_IOTA_FS_1M 1
#define ZPCI_IOTA_FS_2G 2
#define ZPCI_KEY (PAGE_DEFAULT_KEY << 5)
#define ZPCI_IOTA_STO_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_ST)
#define ZPCI_IOTA_RTTO_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_RT)
#define ZPCI_IOTA_RSTO_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_RS)
#define ZPCI_IOTA_RFTO_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_RF)
#define ZPCI_IOTA_RFAA_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY |\
ZPCI_IOTA_DT_PF | ZPCI_IOTA_FS_2G)
/* I/O Region and segment tables */
#define ZPCI_INDEX_MASK 0x7ffULL
#define ZPCI_TABLE_TYPE_MASK 0xc
#define ZPCI_TABLE_TYPE_RFX 0xc
#define ZPCI_TABLE_TYPE_RSX 0x8
#define ZPCI_TABLE_TYPE_RTX 0x4
#define ZPCI_TABLE_TYPE_SX 0x0
#define ZPCI_TABLE_LEN_RFX 0x3
#define ZPCI_TABLE_LEN_RSX 0x3
#define ZPCI_TABLE_LEN_RTX 0x3
#define ZPCI_TABLE_OFFSET_MASK 0xc0
#define ZPCI_TABLE_SIZE 0x4000
#define ZPCI_TABLE_ALIGN ZPCI_TABLE_SIZE
#define ZPCI_TABLE_ENTRY_SIZE (sizeof(unsigned long))
#define ZPCI_TABLE_ENTRIES (ZPCI_TABLE_SIZE / ZPCI_TABLE_ENTRY_SIZE)
#define ZPCI_TABLE_BITS 11
#define ZPCI_PT_BITS 8
#define ZPCI_ST_SHIFT (ZPCI_PT_BITS + PAGE_SHIFT)
#define ZPCI_RT_SHIFT (ZPCI_ST_SHIFT + ZPCI_TABLE_BITS)
#define ZPCI_RTE_FLAG_MASK 0x3fffULL
#define ZPCI_RTE_ADDR_MASK (~ZPCI_RTE_FLAG_MASK)
#define ZPCI_STE_FLAG_MASK 0x7ffULL
#define ZPCI_STE_ADDR_MASK (~ZPCI_STE_FLAG_MASK)
/* I/O Page tables */
#define ZPCI_PTE_VALID_MASK 0x400
#define ZPCI_PTE_INVALID 0x400
#define ZPCI_PTE_VALID 0x000
#define ZPCI_PT_SIZE 0x800
#define ZPCI_PT_ALIGN ZPCI_PT_SIZE
#define ZPCI_PT_ENTRIES (ZPCI_PT_SIZE / ZPCI_TABLE_ENTRY_SIZE)
#define ZPCI_PT_MASK (ZPCI_PT_ENTRIES - 1)
#define ZPCI_PTE_FLAG_MASK 0xfffULL
#define ZPCI_PTE_ADDR_MASK (~ZPCI_PTE_FLAG_MASK)
/* Shared bits */
#define ZPCI_TABLE_VALID 0x00
#define ZPCI_TABLE_INVALID 0x20
#define ZPCI_TABLE_PROTECTED 0x200
#define ZPCI_TABLE_UNPROTECTED 0x000
#define ZPCI_TABLE_VALID_MASK 0x20
#define ZPCI_TABLE_PROT_MASK 0x200
typedef struct SeiContainer {
QTAILQ_ENTRY(SeiContainer) link;
uint32_t fid;
uint32_t fh;
uint8_t cc;
uint16_t pec;
uint64_t faddr;
uint32_t e;
} SeiContainer;
typedef struct PciCcdfErr {
uint32_t reserved1;
uint32_t fh;
uint32_t fid;
uint32_t e;
uint64_t faddr;
uint32_t reserved3;
uint16_t reserved4;
uint16_t pec;
} QEMU_PACKED PciCcdfErr;
typedef struct PciCcdfAvail {
uint32_t reserved1;
uint32_t fh;
uint32_t fid;
uint32_t reserved2;
uint32_t reserved3;
uint32_t reserved4;
uint32_t reserved5;
uint16_t reserved6;
uint16_t pec;
} QEMU_PACKED PciCcdfAvail;
typedef struct ChscSeiNt2Res {
uint16_t length;
uint16_t code;
uint16_t reserved1;
uint8_t reserved2;
uint8_t nt;
uint8_t flags;
uint8_t reserved3;
uint8_t reserved4;
uint8_t cc;
uint32_t reserved5[13];
uint8_t ccdf[4016];
} QEMU_PACKED ChscSeiNt2Res;
typedef struct PciCfgSccb {
SCCBHeader header;
uint8_t atype;
uint8_t reserved1;
uint16_t reserved2;
uint32_t aid;
} QEMU_PACKED PciCfgSccb;
typedef struct S390MsixInfo {
bool available;
uint8_t table_bar;
uint8_t pba_bar;
uint16_t entries;
uint32_t table_offset;
uint32_t pba_offset;
} S390MsixInfo;
typedef struct S390PCIBusDevice {
PCIDevice *pdev;
bool configured;
bool error_state;
bool lgstg_blocked;
uint32_t fh;
uint32_t fid;
uint64_t g_iota;
uint64_t pba;
uint64_t pal;
uint64_t fmb_addr;
uint8_t isc;
uint16_t noi;
uint8_t sum;
S390MsixInfo msix;
AdapterRoutes routes;
AddressSpace as;
MemoryRegion mr;
MemoryRegion iommu_mr;
IndAddr *summary_ind;
IndAddr *indicator;
} S390PCIBusDevice;
typedef struct S390pciState {
PCIHostState parent_obj;
S390PCIBusDevice pbdev[PCI_SLOT_MAX];
AddressSpace msix_notify_as;
MemoryRegion msix_notify_mr;
QTAILQ_HEAD(, SeiContainer) pending_sei;
} S390pciState;
int chsc_sei_nt2_get_event(void *res);
int chsc_sei_nt2_have_event(void);
void s390_pci_sclp_configure(SCCB *sccb);
void s390_pci_sclp_deconfigure(SCCB *sccb);
void s390_pci_iommu_enable(S390PCIBusDevice *pbdev);
void s390_pci_iommu_disable(S390PCIBusDevice *pbdev);
S390PCIBusDevice *s390_pci_find_dev_by_idx(uint32_t idx);
S390PCIBusDevice *s390_pci_find_dev_by_fh(uint32_t fh);
S390PCIBusDevice *s390_pci_find_dev_by_fid(uint32_t fid);
#endif
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